KR20240018338A - Cooking appliance - Google Patents

Abstract

The present invention relates to a cooking appliance. The present invention may include a case having a cavity and a tank chamber formed therein, and a door for opening and closing the cavity. The water tank may be discharged to the front of the case through an entrance of the tank chamber. A controller may be disposed in front of the case at a different height from the door. In this case, the controller may be moved from a first position to cover the entrance of the tank chamber to a second position to open the entrance of the tank chamber. An opening device may be disposed between a pair of hinge modules for moving the controller. When the controller is in the first position, the cam portion of the opening device may be disposed above the rotation center of the controller.

Description

Cooking appliance {Cooking appliance}

The present invention relates to cooking appliances.

Various types of cooking devices are used to heat food at home or in restaurants. For example, various cooking devices such as microwave ovens, induction heating electric ranges, and grill heaters are used.

Cooking appliances can be classified according to the type of cooking chamber where food is cooked, into open cooking appliances and closed cooking appliances. Closed cooking appliances include ovens with doors and microwave ovens, while open cooking appliances include cooktops and hobs.

Recently, steam ovens are being used among closed cookers. A steam oven is an oven that sprays steam into the cooking chamber using high-temperature steam and has the function of controlling the humidity of the food using the steam. A steam oven can prevent food from drying out and maintain the taste and aroma of the dish by preventing the taste and aroma from evaporating.

A steam supply device is installed in the steam oven to supply steam. The steam supply device includes a steam generator that generates steam, and a water tank that supplies water to the steam generator. Water injected through the water tank flows into the steam generator through the water supply pipe, and the water flowing into the steam generator is heated by the heater of the steam generator to generate steam. The steam generated in this way flows into the cooking chamber and circulates inside the cooking chamber, and in this process, cooking using steam occurs.

To supply water, the user must fill the water tank. The user can separate the water tank from the cooking appliance, fill the separated water tank with water, and then reinstall the water tank on the cooking appliance. Since the water tank must be separable from the cooking device, an entrance for the water tank is formed in the cooking device.

The entrance to the water tank may be provided in front of the cooking appliance. This is because if the water tank entrance is provided in front of the cooking appliance, user accessibility is improved. However, since the door of the cooking appliance is also placed in front of the cooking appliance, the water tank entrance can be placed at the top of the cooking appliance to avoid interference with the door.

Meanwhile, the cooking appliance includes a controller for setting various functions of the cooking appliance, including steam cooking, and displaying the cooking status. The controller can control cooking appliances by receiving input signals from the user, and can also display the temperature, humidity, cooking time, and cooking mode of the cooking room.

Like the water tank, these controllers are also placed on top of the cooking appliance to avoid interference with the door. However, since both the entrance to the water tank and the controller must be placed to avoid the door, there is a limitation in that the size of the cooking appliance must be increased or the size of the controller must be limited to a certain size or less. In addition, there is a problem that the entrance to the water tank is exposed to the outside, which spoils the aesthetics.

European patent publication EP 3551942 A1 (Prior Art 1) discloses a technology in which a water tank and a controller are arranged side by side at the top of the door. In prior art 1, the controller is limited to a small size at the top of the door due to the water tank. In addition, prior art 1 includes a separate cover to cover the entrance to the water tank, but the cover is composed of a separate piece and protrudes forward to avoid interference with the controller during movement, which has the disadvantage of spoiling the aesthetics.

Meanwhile, a technology has been developed in which the water tank entrance is placed behind the controller. The US patent US20100206414A1 (prior art 2) and the European patent EP03080517A1 (prior art 3) disclose a technology in which a control panel (controller) is placed in front of a water tank. Prior Art 2 and Prior Art 3 have a structure in which the control panel covers the water tank, and the control panel moves only when the water tank is taken out or installed to open the entrance to the water tank.

In prior art 2 and prior art 3, the control panel moves upward to open the entrance to the water tank. When the control panel moves upward and the entrance to the water tank is opened, the user can take out or reinstall the water tank. Then, when the user moves the control panel downward again, the control panel moves to its original position and covers the entrance to the water tank.

When the control panel is moved to the top of the cooking appliance like this, the overall height of the cooking appliance increases, so there is a problem that the installation height of the cooking appliance must also be increased. In particular, if the cooking appliance is installed in a built-in manner, the control panel may interfere with the kitchen furniture on which the cooking appliance is installed as it moves upward.

In addition, as in prior art 2 and prior art 3, the weight of the control panel must be overcome in order to move the control panel upward, so a large external force is required, which reduces convenience of use.

Even if the control panel is automatically opened using a separate driving source such as a motor, the motor for automatic opening of the control panel must also generate a large force, which increases manufacturing costs and makes the structure of the opening device complicated to generate a large force. there is a problem.

In particular, in order for the control panel to automatically open to the final position, a driving source such as a motor must continue to provide power while the control panel is opening, and an appropriate amount of power must be provided depending on the movement state of the control panel, so the opening device The structure is bound to become more complex.

In addition, the control panel of prior art 2 and prior art 3 must be maintained in a vertical position when moving to open the entrance to the water tank. This is because when the control panel is moved while lying down in the horizontal direction, a large moment is generated and excessive load is applied to the connection part of the switchgear. However, in order to move the control panel while maintaining it in an erect state, the structure of the opening device becomes more complicated and the number of parts increases.

In addition, prior art 3 includes a motor drive unit for opening the control panel at both hinge parts of the control panel. This motor drive part is connected to a mechanism for moving the control panel upward, making the structure of the opening device more complicated and reducing the durability of the hinge part.

European published patent EP 3551942 A1 (prior art 1) US published patent US20100206414A1 (prior art 2) European published patent EP03080517A1 (prior art 3)

The present invention is intended to solve the problems of the prior art as described above. The purpose of the present invention is to place a water tank for steam generation at the rear of the controller, so that the controller rotates downward to open the entrance to the water tank. It is done.

Another object of the present invention is to allow the controller to automatically open an initial certain section by an opening device and open the remaining sections by gravity.

Another object of the present invention is to optimize the installation height and shape of the opening device.

Another purpose of the present invention is to optimize the protrusion distance of the cam provided in the opening device and the rotation distance of the controller.

Another purpose of the present invention is to allow the controller to rotate and open in a horizontal direction to open the entrance and exit of the water tank.

Another object of the present invention is to construct the opening device of the controller separately from the hinge module of the controller and place it at the rear center of the controller.

According to the characteristics of the present invention for achieving the above-mentioned object, the present invention may include a case having a cavity and a tank chamber formed therein, and a door for opening and closing the cavity. Additionally, the water tank may be discharged to the front of the case through the entrance and exit of the tank chamber. A controller may be placed in the front of the case at a different height from the door. At this time, the controller may be moved from a first position that covers the entrance to the tank chamber to a second position that opens the entrance to the tank chamber. An opening device may be disposed between a pair of hinge modules that move the controller. When the controller is in the first position, the cam portion of the opening device may be disposed above the rotation center of the controller.

And, the relative ratio (H2/H1) of the height (H2) from the bottom of the controller to the installation position of the cam portion to the overall height (H1) of the controller may be 0.4 to 0.7.

In addition, the ratio (Z1/L1) between the rotational distance (Z1) of the top of the controller and the maximum protruding distance (L1) of the cam portion of the opening device may be 0.9 to 1.2.

Additionally, the controller may be moved from the first position to the second position while rotating so that the upper end of the controller moves downward.

Additionally, the opening device may be placed at the center between both left and right ends of the controller.

Additionally, the cam portion may be eccentrically connected to the rotation axis of the opening device.

Additionally, a portion of the cam portion may protrude toward the controller during rotation.

Additionally, the opening device may include an opening housing disposed inside the case and an opening motor disposed in the opening housing. At this time, a cam portion may be disposed in the open housing. The cam portion may be rotated by the opening motor, and a portion may protrude out of the case during the rotation process.

Additionally, the cam portion may be disposed to face the rear of the controller when the controller is in the first position.

And, in a state where the cam part is completely stored in the open housing, the distance from the rotation axis of the opening motor to the rear end of the cam part is 6 to 10 times the distance from the rotation axis of the opening motor to the front end of the cam part. It could be longer.

In addition, the controller moves a first open section starting from the first position by the opening device, and the controller moves the second open section from the end of the first open section to the second location by gravity or the user. It can be moved by external force.

Additionally, the rotation angle of the controller in the second open section may be greater than the rotation angle of the controller in the first open section.

Additionally, in the process of moving the controller from the first position to the second position, the controller may be rotated around a connection portion connected to the case, and at the same time, the connection portion may be moved downward of the case.

And, in the process of moving the controller from the first position to the second position, the controller may be rotated around the connection portion connected to the case, and at the same time, the connection portion may be moved forward and downward of the case. there is.

Additionally, the connection part may include a plurality of connection shafts, and the plurality of connection shafts may be connected to the controller at different heights at the first position.

Additionally, the opening device, the pair of hinge modules, and the water tank may be arranged to be spaced apart from each other within the cavity formed in the upper part of the case.

Additionally, in the second position, the upper surface of the controller may be lower than or have the same height as the lower end of the entrance to the tank chamber.

Also, in the first position, the bottom of the controller may be placed higher than the top of the door, and in the second position, the bottom of the controller may be placed lower than the top of the door.

The cooking appliance according to the present invention as seen above has the following effects.

In the present invention, the water tank for steam generation is disposed behind the controller, so that the entrance to the water tank can be normally hidden by the controller. And when the controller rotates downward, the entrance to the water tank opens and the user can take out or reinstall the water tank. As such, in the present invention, the controller rotates downward to open the entrance to the water tank, so there is no change in the overall height of the cooking appliance even when the controller rotates. Therefore, there is an effect of lowering the installation height of the cooking appliance.

Additionally, since the controller rotates downward to open the entrance to the water tank, the cooking appliance may not interfere with the kitchen furniture even if it is installed in a built-in manner. Therefore, there is an effect of increasing the freedom of installation of cooking appliances.

In particular, in the present invention, the cam portion of the opening device can be set to an optimal height. When the cam is set to the optimal height, the opening device can stably rotate the controller with relatively little force. Accordingly, the structure of the opening device can be simplified and the manufacturing cost of the opening device can be reduced.

And, according to the present invention, the ratio between the distance that the cam unit protrudes from the opening device and the rotation distance of the controller can be optimally set. In this way, the opening device can accurately rotate the controller within a set range while having a relatively small and sufficiently large opening force. Therefore, the operational reliability of the cooking appliance can be increased.

In addition, if the controller rotates downward and exposes the entrance of the water tank above it, the controller may not block the user's view toward the entrance of the water tank. Therefore, not only can the user more intuitively check the location of the water tank, but the user's accessibility to the water tank can also be improved.

In particular, when the controller rotates and opens, the upper surface of the controller extends toward the entrance of the water tank, allowing the user to more intuitively know the direction of the water tank.

Also, in the present invention, the controller rotates downward in the direction of gravity, so the controller can be opened with a small force. Therefore, the convenience of operating the cooking appliance is improved.

At this time, even if an automatic opening device is applied to automatically open the controller, the manufacturing cost of the automatic opening device can be reduced because the driving source of the automatic opening device does not require a large amount of force.

Additionally, in the present invention, after only the initial section is opened among all open sections, the controller can automatically open the remaining section while rotating by gravity. Therefore, the entire operation section of the automatic opening device for opening the controller can be shortened, and the structure of the automatic opening device can be simplified.

Additionally, the controller of the present invention can be opened while rotating from a vertically standing state to a horizontally lying state. Since this movement is achieved by rotating the controller downward, there is no need to overcome gravity, thereby preventing a large moment from occurring at the connection part of the controller during the opening process. As a result, the structure of the controller opening device including the hinge module can be simplified and durability can be increased.

Additionally, in the present invention, the hinge module that guides the movement of the controller and the opening device that opens the controller in the initial section can be configured independently of each other. Therefore, compared to configuring the hinge module and the opening device as one piece, their structure can be simplified, and the opening device can provide greater opening force (torque) by being placed relatively far from the rotation axis of the controller.

And, in the present invention, when the controller is rotated and opened, the controller is laid down in front of the entrance and exit of the water tank. The open controller can be a kind of stand, and the user can take the water tank out of the cooking appliance and put it back into the cooking appliance while placing the bottom of the water tank on the top of the controller. Therefore, the desorption workability of the water tank can be improved.

Additionally, in the present invention, the controller can rotate and simultaneously move forward and downward in the direction of gravity. If the controller rotates and moves forward and downward at the same time, the total moving distance of the controller may increase. As the moving distance of the controller increases, the entrance to the water tank can be exposed more widely toward the user, and the water tank can be drawn in and out more easily.

Figure 1 is a perspective view showing an example of a cooking appliance according to the present invention installed in a built-in manner.
Figure 2 is a perspective view showing the structure of an example of a cooking appliance according to the present invention.
Figure 3 is a perspective view showing the structure of an example of a cooking appliance according to the present invention from a different angle than that of Figure 2.
Figure 4 is a perspective view showing the controller constituting an example of the cooking appliance according to the present invention in an open state.
Figure 5 is a perspective view showing the water tank constituting an example of the cooking appliance according to the present invention taken out of the cooking appliance.
Figure 6 is a cross-sectional view taken along line VI-VI' in Figure 1.
Figure 7 is a cross-sectional view taken along line VII-VII' in Figure 1.
Figure 8 is an exploded perspective view of the parts constituting an example of the cooking appliance according to the present invention.
Figure 9 is an enlarged cross-sectional view of portion A of Figure 7.
Figure 10 is a front view showing the lower part of Figure 1.
Figure 11 is a cross-sectional view taken along line XI-XI' of Figure 2
Figure 12 is a cross-sectional view taken along line XII-XII' in Figure 2
Figure 13 is a perspective view showing the structure of an upper cover constituting an example of the cooking appliance according to the present invention.
Figure 14 is a perspective view showing the structure of another embodiment of the upper cover constituting the cooking appliance according to the present invention.
Figure 15 is a plan view showing the structure of the electrical equipment room constituting an example of the cooking appliance according to the present invention.
Figure 16 is a plan view showing the water tank and tank housing installed inside the electrical equipment room in Figure 15.
Figure 17 is an exploded perspective view of the parts constituting the front of the case in one embodiment of the present invention.
Figure 18 is a perspective view showing the inside of the battlefield room with the upper cover constituting one embodiment of the present invention removed.
Figure 19 is a perspective view showing the controller open in the state of Figure 18.
Figure 20 is a cross-sectional view taken along line XX-XX' in Figure 5.
Figure 21 is a perspective view showing the structure of a door frame constituting an embodiment of the present invention.
Figure 22 is a perspective view showing the upper case, front panel, and tank housing constituting one embodiment of the present invention combined with each other.
Figure 23 is a side view showing the upper case, front panel, and tank housing constituting one embodiment of the present invention combined with each other.
Figure 24 is an enlarged cross-sectional view of the joint portion between the front panel and the tank housing constituting one embodiment of the present invention.
Figure 25 is a perspective view showing the front panel and tank housing constituting one embodiment of the present invention in a separated state.
Figure 26 is a front view showing the structure of a front panel constituting an embodiment of the present invention.
Figure 27 is a perspective view showing the structure of a front panel constituting an embodiment of the present invention.
Figure 28 is a perspective view showing the structure of a tank housing constituting an embodiment of the present invention.
Figure 29 is a perspective view showing the structure of a tank housing constituting an embodiment of the present invention from an angle different from that of Figure 28.
Figure 30 is a front view showing a water tank constituting an embodiment of the present invention mounted on the front panel.
FIG. 31 is a cross-sectional view taken along line XXXI-XXXI' of FIG. 30.
Figure 32 is a perspective view showing the structure of an opening device constituting an embodiment of the present invention.
Figure 33 is an operating state diagram sequentially showing the process of operating the opening device constituting an embodiment of the present invention.
Figure 34 is a perspective view showing the structure of a controller constituting an embodiment of the present invention.
Figure 35 is a perspective view showing the structure of a controller constituting an embodiment of the present invention from a different angle than that of Figure 34.
Figure 36 is an exploded perspective view of the parts of the controller constituting one embodiment of the present invention.
Figure 37 is a perspective view showing the parts of the controller constituting one embodiment of the present invention disassembled and viewed from a different angle than Figure 36.
Figure 38 is a cross-sectional view taken along line XXXVIII-XXXVIII' in Figure 34.
Figure 39 is a rear view showing the structure of a controller constituting an embodiment of the present invention.
Figure 40 is a rear view showing the cover frame removed from the controller constituting one embodiment of the present invention.
Figure 41 is a plan view showing the structure of another embodiment of a controller constituting a cooking appliance according to the present invention.
Figure 42 is a rear view showing the structure of another embodiment of a controller constituting a cooking appliance according to the present invention.
Figure 43 is a perspective view showing another embodiment of the controller shown in Figure 42 with the cover frame removed.
Figure 44 is a rear view showing another embodiment of the controller shown in Figure 42 with the cover frame removed.
Figure 45 is a plan view showing another embodiment of the controller shown in Figure 42 with the cover frame removed.
Figure 46 is a side view showing another embodiment of the controller shown in Figure 42 with the cover frame removed.
Figure 47 is an operational state diagram showing the controller constituting an embodiment of the present invention in a continuous open state.
Figure 48 is an operation state diagram sequentially showing the state in which the hinge module constituting an embodiment of the present invention is operated as the controller is opened.
Figure 49 is a perspective view showing a state in which a controller and a hinge module constituting an embodiment of the present invention are combined.
Figure 50 is a perspective view showing a state in which a controller and a hinge module constituting an embodiment of the present invention are combined from an angle different from that of Figure 49.
Figure 51 is a cross-sectional view taken along line LI-LI' in Figure 2.
Figures 52(a) and 52(b) are a cross-sectional view taken along line LII-LII' of Figure 49 and a block diagram showing the structure of the hinge module, respectively.
Figure 53 is a perspective view showing the structure of the hinge coupling portion with the cover frame removed from the controller constituting one embodiment of the present invention.
Figure 54 is a perspective view showing a state in which the connection block of the hinge module is coupled to the hinge coupling portion of the controller constituting one embodiment of the present invention.
Figure 55 is a cross-sectional view showing the connection block of the hinge module coupled to the hinge coupling portion of the controller constituting one embodiment of the present invention.
Figure 56 is a cross-sectional view showing the structure of the hinge coupling part of the controller constituting one embodiment of the present invention.
Figure 57 is a perspective view showing a portion where a controller and a hinge module constituting an embodiment of the present invention are coupled to each other.
Figure 58 is a perspective view showing the cover frame of the controller in Figure 57 removed.
Figure 59 is a perspective view showing a state in which the fastener in Figure 58 has been removed.
Figure 60 is a perspective view showing a state in which a controller and a hinge module constituting an embodiment of the present invention are coupled to each other.
Figure 61 is a side view showing a state in which a controller and a hinge module constituting an embodiment of the present invention are coupled to each other.
Figure 62 is a perspective view showing the structure of the hinge module and wire cover constituting one embodiment of the present invention.
Figure 63 is a front view showing the hinge module and wire cover constituting an embodiment of the present invention mounted on the front frame and front panel.
Figure 64 is a perspective view showing the structure of the hinge module and wire cover constituting one embodiment of the present invention.
Figure 65 is an enlarged perspective view of the combined portion of the hinge module and wire cover constituting an embodiment of the present invention.
Figure 66 is a front view showing the position of a door lock device constituting an embodiment of the present invention.
Figure 67 is a perspective view showing the door locking device constituting one embodiment of the present invention installed in the electrical equipment compartment of the case.
Figure 68 is a perspective view showing the door constituting one embodiment of the present invention spaced apart from the front of the case.
Figure 69 is a perspective view showing the door constituting one embodiment of the present invention in close contact with the front of the case.
Figure 70 is an operation state diagram showing the before and after operation of the door lock device constituting an embodiment of the present invention.
Figure 71 is a perspective view showing the structure of a door lock device constituting an embodiment of the present invention.
Figure 72 is an exploded perspective view of parts of a door lock device constituting an embodiment of the present invention.
Figure 73 is a perspective view showing the door locking device constituting one embodiment of the present invention in an unlocked state.
Figure 74 is a plan view showing the door locking device constituting one embodiment of the present invention in an unlocked state.
Figure 75 is a perspective view showing the door locking device constituting one embodiment of the present invention in a locked state.
Figure 76 is a plan view showing the door locking device constituting one embodiment of the present invention in a locked state.
Figure 77 is a cross-sectional view taken along line LXXVII-LXXVII' in Figure 75;
Figure 78 is a perspective view showing the lock head of the door lock device constituting an embodiment of the present invention in a separated state.
Figure 79 is a perspective view showing a state in which the lock head of a door lock device constituting an embodiment of the present invention is separated and emergency released.
Figure 80 is a plan view showing the lighting module constituting one embodiment of the present invention arranged in the battlefield.
Figure 81 is a plan view showing the structure of a lighting guide constituting an embodiment of the present invention.
Figure 82 is a side view showing the structure of a lighting guide constituting an embodiment of the present invention.
Figure 83 is a perspective view showing the structure of a lighting device constituting an embodiment of the present invention.
Figure 84 is an exploded perspective view of parts of a lighting device constituting an embodiment of the present invention.
Figure 85 is a perspective view showing the parts constituting another embodiment of the lighting device constituting the cooking appliance according to the present invention disassembled and viewed from an angle different from that of Figure 85.
Figure 86 is a cross-sectional view taken along the line LXXXVI-LXXXVI' in Figure 83.
Figure 87 is a cross-sectional view taken along the line LXXXVII-LXXXVII' in Figure 83;
Figure 88 is a graph expressing the relationship between the flow rate and the first opening section departure rate according to the height of the cam provided in the opening device of the present invention.
Figure 89 is a graph expressing the relationship between the opening force of the opening device and the rotation angle of the controller according to the ratio of the protrusion distance of the cam provided in the opening device of the present invention and the rotation distance of the controller.

Hereinafter, some embodiments of the present invention will be described in detail through illustrative drawings. When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing embodiments of the present invention, if detailed descriptions of related known configurations or functions are judged to impede understanding of the embodiments of the present invention, the detailed descriptions will be omitted.

The cooking appliance of the present invention is for cooking food (hereinafter referred to as 'cooking food') using one or a plurality of heat sources. The cooking appliance of the present invention may include a first heat source module (150, see FIG. 7), a second heat source module (160, see FIG. 7), and a third heat source module (170, see FIG. 7). The first heat source module 150, the second heat source module 160, and the third heat source module 170 may each be disposed in the cooking appliance of the present invention and may be composed of different types of heat sources. As another example, some of the first heat source module 150, the second heat source module 160, or the third heat source module 170 may be omitted.

The cooking appliance of the present invention includes a steam device. The steam device may supply steam to the cavity S1, which is a cooking chamber provided inside the cooking appliance. To this end, the steam device may include a heater (not shown) for heating water and a water tank 450 for supplying water to the heater.

Additionally, the cooking appliance of the present invention may include a controller 500. The controller 500 may include at least one of an input means for inputting a signal to operate the cooking appliance and an output means for displaying a cooking state of the cooking appliance.

In the cooking appliance of the present invention, the controller 500 and the water tank 450 may be disposed in the front of the cooking appliance. The controller 500 may cover or open the entrance 424 of the water tank 450 while moving. Hereinafter, the description will focus on the structure for the movement operation of the controller 500.

Figure 1 shows an example of a cooking appliance according to the present invention installed in a built-in manner. As can be seen, the cooking appliance of this embodiment may be installed on kitchen furniture 1, etc., so that only the front of the cooking appliance is exposed to the front. At this time, the front of the cooking appliance may include a door 300 and a controller 500, which will be described below. The water tank 450 of this embodiment may also be exposed to the front of the cooking appliance, but is obscured by the controller 500 in FIG. 1 . Reference numeral 501 denotes a display unit exposed on the front of the controller 500.

For reference, arrow At this time, the forward and backward directions can be viewed as the depth direction of the cooking appliance, the left and right directions can be viewed as the width direction of the cooking appliance, and the up and down directions can be viewed as the height direction of the cooking appliance. Hereinafter, these terms will be used when indicating direction.

To briefly explain the structure of the kitchen furniture 1, the kitchen furniture 1 may surround the bottom, back, top, and sides of the cooking appliance, excluding the front of the cooking appliance. The kitchen furniture 1 may include a lower surface portion (2, see FIG. 6), a rear portion (3), an upper surface portion (4), and a side portion (5). The lower surface 2, rear surface 3, upper surface 4, and side surfaces 5 respectively surround the lower, back, upper, and side surfaces of the cooking appliance, and only the front of the cooking appliance can be exposed to the outside. As another example, some of the lower surface portion 2, rear portion 3, upper surface portion 4, and side portion 5 may be omitted.

At this time, a gap may exist between the kitchen furniture 1 and the cooking appliance. External air may flow into the gap (lower intake port (G1)) between the kitchen furniture (1) and the cooking appliance. Looking at Figure 1, air may flow in between the kitchen furniture 1 and the lower part of the cooking appliance (direction of arrow ①). And the air that cools the cooking appliance while passing through the inside of the cooking appliance can be discharged forward again. More precisely, air can be discharged through the gap formed between the door 300 of the cooking appliance and the controller 500 (direction of arrow ②). This air circulation process will be explained again below.

2, an example of a cooking appliance according to the present invention is shown. As can be seen, the cooking appliance may have a roughly hexahedral shape. The front-to-back, left-right, and top-bottom heights of the cooking appliances may be formed to be approximately similar in size. Alternatively, the front-to-back, left-right, and top-bottom heights of the cooking appliances may be different.

A cavity (S1, see FIG. 6) is provided inside the cooking appliance. The cavity S1 may be formed inside the cases 100 and 200 that form the skeleton of the cooking appliance. The cavity S1 is an empty space where food is cooked and may be viewed as a cooking room. The cavity S1 may be separated from the electrical equipment room S2 (see FIGS. 6 and 7), which will be described below.

The cases 100 and 200 may include an inner case 100 and an outer case 200. The outer case 200 may be coupled to the inner case 100 in a form that surrounds the inner case 100. An insulating material (not shown) may be filled between the inner case 100 and the outer case 200, and the insulating material may function to block heat from the heat source module being transmitted to the outside.

2 and 3, a controller 500, which will be described below, may be placed above the door 300. The controller 500 may include at least one of an input means for inputting a signal to operate the cooking appliance and an output means for displaying a cooking state of the cooking appliance. At this time, the input means and output means of the controller 500 may be configured as one display. The specific structure of the controller 500 will be described again below.

Referring to Figure 4, the controller 500 is shown open. In this embodiment, the controller 500 may be rotated so that the upper end of the controller 500 moves downward. That is, the controller 500 may be operated in a kind of pull-down method in which the upper part rotates up and down around the lower part.

Next, looking at FIG. 5, the water tank 450 is shown being pulled out while the controller 500 is open. In this embodiment, the water tank 450 for the steam function may be placed behind the controller 500 and obscured by the controller 500 when the cooking appliance is in operation. When withdrawing or re-introducing the water tank 450, the controller 500 must be opened to open the entrance to the tank chamber. Here, the operating state means a state in which the cooking appliance is operating, that is, a state in which food is being cooked.

As such, in this embodiment, the controller 500 can always be placed in front of the water tank 450 except during the withdrawal and retraction process of the water tank 450. The controller 500 disposed in front of the water tank 450 can cover the entrance 424 of the water tank 450, more precisely, the entrance 424 of the tank chamber, which will be described below. Accordingly, the water tank 450 and the entrance may not be exposed to the outside, and the aesthetics of the cooking appliance may be improved.

For reference, opening the controller 500 means that the upper part of the controller 500 is rotated to move downward, as shown in FIG. 4 . Conversely, when the controller 500 is closed, it means that the upper part of the controller 500 is rotated to move upward, as shown in FIG. 2, and the controller 500 is placed parallel to the door 300.

Looking at Figure 6, you can see that the cooking appliance is stored inside the kitchen furniture (1). A cavity S1 may be provided inside the inner case 100. The empty space of the cavity (S1) can be considered to be defined by the inner case (100). The inner case 100 may have a substantially hexahedral shape and may be open forward.

An opening 120 may be formed at the rear of the inner case 100. The opening 120 is for transferring heat generated by the second heat source module 160 to the inside of the cavity (S1). The opening 120 may be formed by penetrating a portion of the rear surface of the inner case 100. In this embodiment, the opening 120 is formed in a substantially circular shape.

At this time, steam may also flow into the cavity (S1) through the opening 120. The steam is generated by the steam device. Referring to FIG. 7, the steam may be introduced into the cavity (S1) by the convection fan provided in the second heat source module 160.

6 and 7, a lower frame 130 may be provided at the lower part of the inner case 100. The lower frame 130 may have a structure that protrudes further downward from the bottom surface of the inner case 100. The first heat source module 150 may be disposed inside the lower frame 130. The lower frame 130 may be placed on the upper part of the bottom case 210, which will be described below. A first insulation space (IS1) is formed between the lower frame 130 and the bottom case 210, and the first insulation space (IS1) is filled with an insulation material (not shown), and the first heat source module ( 150) can prevent heat from being discharged to the outside.

A plurality of heat sources may be included in this embodiment. The heat sources may include a first heat source module 150, a second heat source module 160, and a third heat source module 170. The first heat source module 150 is disposed on the lower surface of the cavity (S1), the second heat source module 160 is disposed on the rear side of the cavity (S1), and the third heat source module 170 is disposed on the lower surface of the cavity (S1). It may be placed on the upper surface of the cavity (S1). In this way, by arranging a plurality of heat sources at different positions, the surface of the food can be heated more evenly and the cooking time can be shortened. Additionally, by using multiple heat sources, cooking methods that require higher temperatures can be implemented.

Referring to FIGS. 6 and 7 , the first heat source module 150 may be placed on the lower frame 130 of the inner case 100. The first heat source module 150 may generate radiant heat inside the cavity (S1). For this purpose, the first heat source module 150 may be provided with a heater unit. The heater unit may generate radiant heat upward, that is, toward the cavity S1, and heat the lower portion of the food. The heater unit may be a graphite heater. This heater unit can function as a kind of broil heater, and the heater unit can be used for grill purposes using direct heat or radiant heat.

As another example, the first heat source module 150 may heat food using an induction heating method using a magnetic field generated from a working coil.

The second heat source module 160 may be a type of convection heater. The second heat source module 160, together with the convection fan, can generate convection heat inside the cavity (S1) to increase cooking uniformity. In contrast, the second heat source module 160 omits the convection fan, and, like the first heat source module 150, radiant heat can be provided to the food using a heating wire.

A convection heater 165 may be disposed in the second heat source module 160. The convection heater may be formed as a bar type with a predetermined length and diameter. For example, the convection heater may be a sheath heater in which the protection tube of the heating wire is made of metal. Alternatively, the convection heater may be a carbon heater, ceramic heater, or halogen heater in which a filament is encapsulated inside a tube made of transparent or translucent material.

The third heat source module 170 may be disposed on the upper surface of the cavity (S1) facing the first heat source module 150. Like the first heat source module 150, the third heat source module 170 can generate radiant heat inside the cavity S1 using a heater unit. The heater unit may generate radiant heat downward, that is, toward the cavity S1, and heat the upper portion of the food. In FIG. 7, reference numeral 175 denotes a temperature probe for measuring the temperature inside the cavity S1.

Although not shown, a fourth heat source module may be added to the cases 100 and 200. The fourth heat source module may include a magnetron for oscillating microwaves, and a wave guide for guiding the microwaves oscillated from the magnetron to the cavity (S1).

An outer case 200 may be placed outside the inner case 100. As shown in Figures 2 and 3, the exterior of the cooking appliance may be composed of an outer case 200. The outer case 200 may include a bottom case 210 forming the bottom of the cooking appliance, a rear case 220 forming the back, and an upper case 240 forming the upper surface. Additionally, a door 300, which will be described later, may be placed in front of the cooking appliance to form the front of the cooking appliance.

The bottom case 210 may be provided to be spaced apart from the lower frame 130 of the inner case 100. The bottom case 210 may be substantially plate-shaped. The bottom case 210 may be seated on the lower surface 2 of the kitchen furniture 1. The first insulation space IS1 between the bottom case 210 and the lower frame 130 may be filled with an insulation material (not shown).

6 and 7, a bottom spacer 215 may protrude from the bottom case 210. The bottom spacer 215 may be formed to protrude downward from the bottom case 210. The bottom spacer 215 may support the cooking appliance by contacting the lower surface 2 of the kitchen furniture 1. In this embodiment, the bottom case 210 is provided with a plurality of bottom spacers 215.

The bottom spacer 215 can be used to space the bottom case 210 from the lower surface 2 of the kitchen furniture 1. And the spaced lower gap (G1) becomes a lower intake port, and the first air flow path (AC1) can be connected to this lower intake port (G1). Air introduced from the outside may move along the first air flow path (AC1). Arrow ① in FIG. 7 shows the direction in which external air flows into the first air passage (AC1), and arrow ② represents the direction in which air moves toward the rear of the cooking appliance along the first air passage (AC1). . The first air flow path (AC1) will be examined again below.

The bottom spacer 215 can be seen to form a lower intake port G1 through which external air can flow by separating the bottom case 210 from the lower surface 2 of the kitchen furniture 1. . Referring to FIG. 1, external air may flow into the lower lower intake port G1 formed by the bottom spacer 215 in the direction of arrow ①. The air introduced in this way can move along the outer case 200 of the cooking appliance and lower the surface temperature of the cooking appliance and the temperature inside the electrical compartment (S2).

Figure 9 shows an enlarged view of part A of Figure 7. As can be seen, the upper surface 2a of the lower surface 2 of the kitchen furniture 1 can be spaced apart from the bottom case 210 by the bottom spacer 215. External air may flow into the spaced lower lower intake port G1. At this time, the upper surface 2a of the lower surface 2 of the kitchen furniture 1 may be viewed as a seating surface on which the cooking appliance is mounted.

The bottom seating portion 285 of the front frame 280, which will be described below, may be seated on the bottom case 210. Some of the plurality of bottom spacers 215 may be formed at positions where the front frame 280 and the bottom case 210 overlap each other to reinforce the strength of the bottom case 210.

Looking at FIG. 10 when the bottom case 210 is viewed from the front, it can be seen that a plurality of bottom spacers 215 are arranged below the bottom case 210 at intervals from each other. A lower intake port G1 may be formed between the upper surface 2a of the lower surface 2 of the kitchen furniture 1 and the bottom case 210 by the bottom spacer 215. Additionally, a side gap G2 may be formed between the side portion 5 and the cooking appliance. The side gap G2 will be described again below.

11 and 12 show the structure of the bottom case 210. For reference, Figure 11 shows the front structure of the bottom case 210, and Figure 12 shows the rear structure of the bottom case 210. As can be seen, in this embodiment, the bottom case 210 may have a double configuration. The bottom case 210 is composed of an upper plate 213 and a lower plate 212, and a predetermined space is formed between the upper plate 213 and the lower plate 212.

This space may form part of the first air passage AC1. In this way, the first air passage AC1 separated from other spaces can be created between the lower plate 212 and the upper plate 213 of the bottom case 210. The first air flow path AC1 may be disposed below the first heat source module 150. Accordingly, the air flowing backward along the first air passage AC1 can cool the first heat source module 150.

Since the first air passage AC1 is formed inside the bottom case 210, it may not be affected by structures surrounding the cooking device. In other words, regardless of the shape, size, or material of the kitchen furniture on which the cooking appliance is installed, external air can stably flow along the first air passage AC1, which has a constant size and shape. In addition, the first air passage AC1 is connected to the second air passage AC2, which will be described again below, thereby providing a continuous air passage inside the cooking appliance.

The lower seating portion 285 of the front frame 280 may be seated on the front portion of the bottom case 210 facing the door 300. The lower seating portion 285 of the front frame 280 may be viewed as being supported by the front portion of the bottom case 210. More precisely, the lower seating portion 285 of the front frame 280 may overlap the upper part of the lower plate 212 constituting the bottom case 210.

A blocking portion 214 may be provided at one end of the upper plate 213. The blocking portion 214 may block heat from the first heat source module 150 from being transferred to the door hinge (H, see FIG. 8) disposed in front of the upper plate 213. To this end, the blocking portion 214 may be bent at one end of the upper plate 213. The blocking portion 214 may be provided on a front portion of the upper plate 213, that is, a portion facing the door 300. The blocking portion 214 may be bent in a direction in which the height of the upper plate 213 increases. Unlike shown in FIG. 11, the blocking portion 214 may be formed higher to match the height of the door hinge (H).

The upper plate 213 and the lower plate 212 may be spaced apart from each other. At this time, the upper plate 213 and the lower plate 212 may be in close contact with each other at some points. Referring to FIG. 11, the upper plate 213 and the lower plate 212 are shown protruding toward each other to form a close contact portion 218. The close contact portion 218 brings the upper plate 213 and the lower plate 212 into close contact, allowing them to withstand the weight of components placed on the upper part of the bottom case 210. A plurality of the close contact portions 218 may be arranged along the width direction of the bottom case 210.

An inlet 216 may be formed in the lower plate 212. The inlet 216 may be formed by penetrating a portion of the lower plate 212 in the vertical direction. The inlet 216 may be connected to the lower intake port G1. External air flowing into the lower intake port G1 may be sucked into the first air passage AC1 through the inlet 216. Since the suction power of the cooling fan module 410, which will be described below, extends to the first air passage AC1, the air in the first air passage AC1 may flow rearward.

Therefore, the external air flowing into the lower intake port (G1) formed by the bottom spacer 215 is introduced into the upper plate 213 and the lower plate 212 through the inlet 216 formed in the lower plate 212. It can flow in between. In addition, the introduced air can move rearward along the first air passage (AC1), and flows into the second air passage (AC2) formed between the rear case 220 and the rear cover 230, which will be described below. It can be.

At this time, the inlet 216 may be formed in the front part of the lower plate 212 close to the door 300. That is, the inlet 216 is not formed at various locations of the lower plate 212, but is concentrated at the front part close to the door 300. In this case, the suction force of the cooling fan module 410 is not dispersed and can be concentrated on the inlet 216 and the lower intake port G1. Of course, a plurality of inlets 216 may be disposed in the front part of the lower plate 212.

For reference, arrow ① in FIG. 11 shows the path through which outside air flows into the lower intake port (G1), and arrow ② indicates the path through which the inflow air flows into the first air passage (AC1) through the inlet 216. It shows the path, and arrow ③ shows the path where the air moves backward along the first air flow path (AC1).

Meanwhile, air moving backward along the first air passage AC1 between the lower plate 212 and the upper plate 213 may be transferred to the second air passage AC2. This appearance is shown in Figure 12. As can be seen, the air moving rearward (in the direction of arrow ①) along the first air passage (AC1) flows toward the second air passage (AC2) between the rear case 220 and the rear cover 230. (Arrow ② direction) can be done. Also, the air flowing into the second air passage AC2 may move upward (in the direction of arrow ③) along the second air passage AC2.

To this end, a connection passage 229 may be formed in the rear case 220 to connect the first air passage AC1 and the second air passage AC2. The connection passage 229 may be formed to penetrate the rear case 220 in the front-to-rear direction. The connection passage 229 may be formed in the lower part of the rear case 220. More precisely, the connection passage 229 may be formed at the lower end of the rear case 220 close to the bottom case 210.

In this way, the air moving upward (in the direction of arrow ③) along the second air flow path AC2 passes behind the second heat source module 160. Accordingly, the air passing through the second air passage AC2 can cool the rear of the second heat source module 160.

And, as will be explained again below, the air moving upward along the second air passage AC2 may be delivered to the electrical equipment compartment S2. The air in the electrical equipment room (S2) may be sucked into the cooling fan module 410 and then discharged to the outside through the third air passage (AC3). The air delivered to the electrical equipment room (S2) can cool the interior of the electrical equipment room (S2). In addition, since the third air passage (AC3) is disposed at the upper part of the third heat source module (170), the air passing through the third air passage (AC3) cools the upper part of the third heat source module (170). It may be possible.

This appearance is shown in Figure 7. As can be seen, the external air (direction of arrow ①) introduced through the lower intake port (G1) can be sucked into the inside of the first air passage (AC1) (direction of arrow ②) through the previously described inlet 216. there is. And the air can move rearward along the first air flow path (AC1).

Air moving rearward can pass through the second air passage (AC2) (direction of arrow ③). Since the second air passage AC2 is formed along the direction of gravity, the suction power of the cooling fan module 410 may be required for air to flow along the second air passage AC2.

Additionally, air may flow into the electrical compartment S2 through the connection hole 242 of the upper case 240, which will be explained below (direction of arrow ④). The air flowing into the battlefield room (S2) is sucked into the interior of the cooling fan module 410 (in the direction of arrow ⑤) and then moves forward (in the direction of arrow ⑥) along the third air passage AC3. Ultimately, the air may be discharged to the outside through the exhaust port 282.

In summary, it can be said that external air flows in from the front lower part of the cooking appliance, circulates inside the cooking appliance, and then is discharged from the front upper part. In this process, the outside air can cool the surroundings of the first heat source module (AC1), the second heat source module (AC2), and the third heat source module (AC3).

Meanwhile, arrow ④' in FIG. 7 indicates the inflow direction of air flowing in through the air inlet/outlet portion 265 of the upper cover 260, which will be explained below. Outside air does not necessarily flow in through the front lower part of the cooking appliance, but may also flow in through the free space formed in the upper and rear part of the cooking appliance. Of course, if there is no air inlet/outlet portion 265 in the upper cover 260, there may be no inflow of air through arrow ④'. If the upper cover 260 does not have an air inlet/outlet 265, the air inflow path is reduced, but the suction power of the cooling fan module 410 can be concentrated at the front lower part of the cooking appliance.

Looking again at FIG. 8, the outer case 200 surrounding the inner case 100 is shown. A second insulation space IS2 may be formed between the rear case 220 constituting the outer case 200 and the inner case 100. The second insulation space IS2 may be filled with an insulation material (not shown) to prevent heat from the cavity S1 from being discharged to the outside.

A rear cover 230 may be disposed at the rear of the rear case 220 constituting the outer case 200. Additionally, a predetermined empty space may be formed between the rear case 220 and the rear cover 230. The empty space between the rear case 220 and the rear cover 230 may serve as a second air passage AC2. And as shown in FIG. 7, a convection motor 163 for rotating the convection fan constituting the second heat source module 160 may be disposed in the second air passage AC2. For reference, reference numeral 165 indicates the heater structure of the second heat source module 160.

And an upper cover 260 may be placed above the upper case 240. The upper cover 260 may cover the upper part of the electrical equipment room (S2) and shield the electrical equipment room (S2). An electrical compartment S2 may be formed between the upper case 240 and the upper cover 260. A cooling fan module 410 may be placed in the electrical equipment room (S2). The cooling fan module 410 can suck in external air, pass through the inside of the cooking appliance, and discharge the air whose temperature has risen back to the outside. The electrical equipment room (S2) may be viewed as an upper space that is distinct from the cavity (S1). As another example, the electrical equipment room (S2) may be disposed below the cavity (S1) and become a lower space distinct from the cavity (S1). The cooling fan module 410 will be described again below.

Meanwhile, the air moving along the second air passage AC2 may move forward along the third air passage AC3 (see FIG. 7) formed inside the cooling fan module 410. The air that moves forward can ultimately be discharged to the outside. An outlet through which air is discharged to the outside may be formed between the door 300 and the controller 500 (see arrow ② in FIG. 1). More precisely, air can be discharged through the exhaust port 282 formed in the front frame 280, which will be described below, and the air is discharged from the door 300 and the controller 500 disposed in front of the exhaust port 282. It can ultimately be discharged to the outside through the gap between them.

Referring to Figures 3 and 8, the rear cover 230 may be formed in a substantially square plate shape. A penetrating portion 232 may be formed in the rear cover 230. A shielding cover 232a may be coupled to the penetration portion 232. The shielding cover 232a can cover the penetrating part 232, and when removed, the penetrating part 232 can be opened. The worker can open the shielding cover 232a and access the second air passage AC2. That is, the shielding cover 232a can be removed when accessing the rear interior of the cooking appliance for maintenance of the cooking appliance.

A rear through hole 235 may be formed in the rear cover 230. The rear through hole 235 can be viewed as an air passage connected to the outside. The rear through hole 235 may be formed in the center of the rear cover 230. As another example, the rear through hole 235 may be omitted from the rear cover 230.

A rear fastening portion 233 may be provided at the edge of the rear cover 230. The rear fastening portion 233 may have a shape in which an edge portion of the rear cover 230 is bent. The rear fastening portion 233 may be used for coupling between the rear cover 230 and the side cover 270. The rear fastening portion 233 and the side ends of the side cover 270 may be assembled with fasteners such as screws. Additionally, the rear cover 230 may be assembled to the rear case 220 at the same time.

Next, looking at the structure of the upper case 240, the upper case 240 may be placed on the upper surface of the inner case 100. The upper case 240 can be viewed as forming the bottom surface of the electrical equipment compartment (S2). Various components, including a cooling fan module 410, may be placed in the upper case 240.

Referring to FIG. 8, a connection hole 242 may be open at the rear of the upper case 240. The connection hole 242 may be formed to penetrate the rear of the upper case 240 in the vertical direction. The connection hole 242 may connect the second air flow path (AC2) and the electrical equipment room (S2). The connection holes 242 may be formed in plural numbers along the rear edge of the upper case 240.

In this way, the connection hole 242 is open in the vertical direction, but the connection hole 242 may be shielded by the upper cover 260. Referring to Figure 8, the blocking plate 266 of the upper cover 260 is disposed on the upper part of the connection hole 242. The blocking plate 266 may cover the connection hole 242 while being spaced a predetermined distance above the connection hole 242 . In this case, the connection hole 242 cannot be directly connected to the outside of the outer case 200, and the connection hole 242 can only connect the second air passage (AC2) and the electrical equipment compartment (S2) to each other. there is.

For convenience of explanation, the upper cover 260 will be described first. As shown in FIG. 13, the upper cover 260 may have a substantially square plate shape. The upper cover 260 may be combined with the upper case 240 to form an electric vehicle compartment (S2) between the upper case 240 and the upper case 240. More precisely, the electric vehicle compartment (S2) can be provided in a space surrounded by the upper case 240, the upper cover 260, the side cover 270, and the front panel 420 to be described below. there is.

Looking at the structure of the upper cover 260, a cover end 262 may be provided at the front of the plate-shaped body of the upper cover 260. The cover end 262 may be formed in a direction to increase the height of the upper cover 260. The cover end 262 may be made in a stepped shape and placed on the upper surface of the front panel 420.

Fastening ends 263 may be provided on both sides of the upper cover 260. The fastening ends 263 may be bent downward at both ends of the upper cover 260. The fastening end 263 may overlap the upper end of the side cover 270. The upper cover 260 may be coupled to the upper end of the side cover 270 by the fastening end 263.

A connection bent portion 264 may be provided at the rear portion of the body of the upper cover 260. The connection bent portion 264 may be bent downward from the rear portion of the body of the upper cover 260. The upper end of the connection bent portion 264 is connected to the rear part of the body of the upper cover 260, and the lower end is connected to the blocking plate 266.

An air inlet/outlet portion 265 may be formed in the connection bent portion 264. The air inlet/outlet portion 265 may be formed by penetrating a portion of the connection bent portion 264. The air inlet/outlet portion 265 may connect the electrical equipment room (S2) to the outside. External air may be introduced into the interior of the electrical equipment room (S2) through the air inlet/outlet unit 265, or the air of the electrical equipment room (S2) may be discharged to the outside through the air inlet/outlet unit 265.

Referring to FIG. 7, the flow path of air flowing into the electrical equipment room (S2) is (i) a path (direction of arrow ④) through the second air flow path (AC2), and (ii) the air inlet/outlet portion 265. It can include a path (arrow ④'direction) through . In addition, (iii) external air may be introduced into the electrical equipment compartment (S2) through the side penetration hole (272, see FIG. 8) of the side cover (270), which will be explained below.

A blocking plate 266 may be connected to the connection bent portion 264. The blocking plate 266 may cover a portion of the rear of the upper case 240. More precisely, the blocking plate 266 may be disposed above the connection hole 242 of the upper case 240. The blocking plate 266 may cover the upper portion of the connection hole 242 while being spaced apart from the connection hole 242 by a predetermined distance. Since the blocking plate 266 is located below the body of the upper cover 260, the distance between the blocking plate 266 and the connection hole 242 can be reduced. As the distance between the blocking plate 266 and the connecting hole 242 becomes closer, the air passing through the connecting hole 242 flows smoothly into the electrical equipment compartment S2 along the bottom of the blocking plate 266. can be guided.

As shown in FIG. 14 , which shows another embodiment of the upper cover 260, the air inlet/outlet portion 265 may be omitted. In this case, external air cannot flow into the electrical equipment compartment (S2) through the upper cover 260. External air flows only through the lower intake port (G1), which is a gap at the bottom of the bottom case 210, and flows along the first air passage (AC1), second air passage (AC2), and third air passage (AC3) of the cooking appliance. can do. At this time, external air may flow in through the side hole 272 formed in the side cover 270, but most air may flow in through the gap below the bottom case 210.

The upper case 240 will be described with reference to FIGS. 15 and 16. The upper case 240 may be fixed to the upper surface of the inner case 100. The upper case 240 may be disposed between the upper surface of the inner case 100 and the upper cover 260. The upper surface of the upper case 240 may be the floor of the electrical equipment room (S2).

The connection hole 242 described above may pass through the rear of the upper case 240. There may be one or more connection holes 242. Additionally, some of the connection holes 242 may be opened backward to form a guide opening 242a. A wire harness (not shown) connected to the outside may be inserted through the guide opening 242a, and the wire harness may be placed inside the connection hole 242.

The upper surface of the upper case 240 can be viewed as a mounting surface. Various components, including a cooling fan module 410 and a lighting module 900, may be placed on the mounting surface. The mounting surface is basically a flat structure, but some parts may be made in the form of bent ribs to serve as a strength reinforcement function.

A tank mounting portion 243 may be formed on one side of the upper case 240. The tank mounting portion 243 can be viewed as a place where the water tank 450, which will be described below, and the tank housing 460 on which the water tank 450 is mounted are placed. The tank mounting portion 243 may be formed at a position biased toward the front (lower side with respect to FIG. 15 ) among the mounting surfaces of the upper case 240 . That is, the tank mounting portion 243 is formed to be biased toward the front of the cooking appliance.

Additionally, the tank mounting portion 243 may be formed to be biased to one side from the center based on the left and right width directions of the upper case 240. In this embodiment, the tank mounting portion 243 is disposed on the right side of the upper case 240. A door lock device 800, which will be described below, may be placed on the left side of the upper case 240, which is opposite to the tank mounting portion 243.

The tank mounting portion 243 may include a portion of the mounting surface and the upper surface of the guide duct 250, which will be described below. The tank housing 460 may be arranged to cover not only part of the mounting surface but also part of the guide duct 250. Looking at FIG. 16, it can be seen that the tank housing 460 is arranged to overlap the guide duct 250.

A guide duct 250 may be provided on the mounting surface. The guide duct 250 may have a structure that covers a portion of the mounting surface. The guide duct 250 may form a guide passage between the mounting surface and the mounting surface. The guide passage may be viewed as a third air passage (AC3) connected to the second air passage (AC2). The air discharged by the cooling fan module 410 may be discharged to the outside through the guide passage. Therefore, the guide duct 250 may be viewed as a part of the cooling fan module 410.

15, the guide duct 250 is shown. The guide duct 250 may include a body portion 250a and a guide portion 250b connected to the body portion 250a. A cooling fan module 410 may be installed in the body portion 250a. The guide portion 250b may form a third air passage AC3 that allows air discharged from the cooling fan module 410 to be discharged toward the front of the cooking appliance. Accordingly, the third air passage (AC3) may be viewed as an air discharge passage.

The body portion 250a may be disposed at the center based on the left and right width direction (left and right direction with respect to FIG. 15) of the guide duct 250. In this way, the guide duct 250 can ensure that the air flowing along the second air passage (AC2) of the cooking appliance is sucked in evenly without being directed to one side.

In addition, the body portion 250a may be disposed at a position biased rearward from the center based on the front-to-back depth direction (up and down direction with respect to FIG. 15). Expressed differently, the body portion 250a can be viewed as being disposed closer to the connection hole 242 than the exhaust port 282 of the cooking appliance. When the body portion 250a is disposed close to the connection hole 242, the air in the second air passage AC2 can be sucked in more strongly. Additionally, if the body portion 250a is disposed at the rear close to the connection hole 242, the guide portion 250b connected to the body portion 250a can be made sufficiently wide.

The guide portion 250b may be formed to gradually increase in width toward the front of the cooking appliance (downward with respect to FIG. 15). The guide part 250b may include a first side part 250b1 and a second side part 250b2. The first side portion 250b1 and the second side portion 250b2 extend in an inclined direction to increase the width of the guide portion 250b.

The first side portion 250b1 may form one side of the guide portion 250b. The first side portion 250b1 may extend in a direction away from the outlet 256a of the discharge space 256 formed in the body portion 250a. Expressed differently, based on FIG. 15, the first side portion 250b1 can be viewed as extending downward and to the left.

And the second side portion 250b2 may constitute the other side of the guide portion 250b. The width between the second side portion 250b2 and the first side portion 250b1 may be extended in a direction where the width gradually becomes wider.

At this time, the angle between the virtual extension line passing through the center of the cooling fan module 410 and the extension line extending along the first side portion 250b1 is K1, and the virtual extension line passing through the center of the cooling fan module 410 is K1. If the angle between the extension line and the extension line extending along the second side portion 250b2 is K2, then K1>K2. Since the cooling fan of the cooling fan module 410 discharges air while rotating clockwise, the discharged air tends to flow biased toward the first side portion 250b1. Reflecting this trend, the first side portion 250b1 may have a third air passage AC3 with a relatively gentler inclination angle than the second side portion 250b2.

A depression 253 may be formed between the body portion 250a and the second side portion 250b2. The recessed portion 253 narrows the width of the connection portion between the body portion 250a and the second side portion 250b2. The depression 253 can create a kind of inclined structure, and this inclined structure can guide the air discharged from the cooling fan module 410 toward the first side part 250b1.

A fan fastening portion 254 may be formed in the body portion 250a. The fan fastening portion 254 is a kind of empty space, in which the cooling fan module 410 can be placed. The fan body 412 of the cooling fan module 410, which will be described below, can be fixed to the fan fastening portion 254. The air flowing into the electrical equipment room (S2) through the connection hole 242 can be sucked into the cooling fan module 410 through the hole of the fan body 412 disposed in the fan fastening part 254. there is.

In this embodiment, the fan fastening portion 254 may be formed at a position spaced apart from the center of the body portion 250a. The fan fastening portion 254 may be provided eccentrically to one side from the center of the body portion 250a. More precisely, based on FIG. 15, the fan fastening portion 254 may be disposed biased to the left and lower from the center of the body portion 250a. This is based on FIG. 15. Expressed differently, the fan fastening portion 254 can be viewed as being disposed biased from the center of the body portion 250a to the left and forward toward the door. If the rotation direction of the fan blade 417 of the cooling fan module 410 is counterclockwise, the fan fastening portion 254 may be disposed on the right side rather than the left side from the center of the body portion 250a.

When the fan fastening part 254 is spaced apart from the center of the body 250a, a predetermined discharge space 256 is formed between the right side of the cooling fan module 410 and the inner wall of the body 250a. It can be. 15, it can be seen that a predetermined discharge space 256 is formed on the right side of the fan fastening part 254. This space can create a free space where the air discharged from the cooling fan module 410 can flow to some extent without directly hitting the inner wall of the body portion 250a.

The discharge space 256 may gradually widen toward the outlet 256a of the discharge space 256. As shown in FIG. 15, since the fan fastening portion 254 is spaced apart from the center of the body portion 250a, the width of the discharge space 256 gradually widens toward the outlet. In this case, the air sucked into the cooling fan module 410 is compressed at the narrow entrance of the discharge space 256, and gradually spreads along the inner wall of the body portion 250a to the exit of the discharge space 256. It can be discharged as (256a). Additionally, the discharge direction of the air discharged from the outlet 256a of the discharge space 256 may be parallel to the direction in which the fan fastening portion 254 is inclined.

Meanwhile, a lighting fastening portion 255 may be formed in the upper case 240. The lighting module 900 may be placed in the lighting fastening unit 255. The lighting fastening portion 255 may penetrate the upper case 240 and open toward the cavity S1. In this embodiment, the lighting fastening portion 255 may extend to the guide duct 250. That is, the lighting fastening portion 255 can be made by continuously penetrating the guide duct 250 and the upper case 240.

The lighting fastening part 255 may be placed in the guide part 250b of the guide duct 250. More precisely, the lighting fastening portion 255 may be disposed on a virtual extension line passing through the center of the cooling fan module 410. That is, both the cooling fan module 410 and the lighting module 900 can be viewed as being disposed at the center of the upper case 240 in the left and right width directions, which in turn can be said to be disposed at the center of the left and right width directions of the cooking appliance.

At this time, the lighting fastener 255 may be arranged obliquely to form a predetermined angle with a virtual extension line passing through the center of the cooling fan module 410, as shown in FIG. 16. The angle formed between the virtual extension line passing through the center of the cooling fan module 410 and the virtual extension line extending along the longitudinal direction of the lighting fastening part 255 can be said to be K3. If the lighting fastening part 255 is disposed at an angle in this way, the resistance generated when the air discharged along the guide duct 250 passes through the left and right sides of the lighting module 900 can be reduced.

More precisely, the lighting guide 910 disposed on the lighting fastening portion 255 is configured to follow the rotational direction of the fan blade 417 (see Figure 16) based on the center line of the cooling fan module 410 extending in the front and rear direction. It can be arranged obliquely along a clockwise direction. This structure will be explained again below.

Referring to FIG. 8, the outer case 200 may include a side cover 270. The side cover 270 may be composed of a pair. The pair of side covers 270 may cover the left and right sides of the inner case 100. The side cover 270 may have a substantially plate-shaped structure.

A side through hole 272 may be formed in the side cover 270. The side through hole 272 may be formed by penetrating the side cover 270. External air may flow into the cooking appliance through the side through hole 272.

The side through hole 272 may be formed at the top of the side cover 270. The side through hole 272 is formed on the upper part of the side cover 270 constituting the electrical equipment compartment (S2). Accordingly, the side through hole 272 can allow external air to be supplied to the electrical equipment room (S2).

The side through hole 272 may be formed at a position near the front of the upper part of the side cover 270. That is, the side through hole 272 may be formed close to the exhaust port 282 of the front frame 280. If the side through hole 272 is formed close to the front of the side cover 270, the cooling fan module 410 may be located far from the path through which air is sucked from the second air passage AC2. If the side through hole 272 is formed close to the rear of the side cover 270, air flowing in through the side through hole 272 can also be sucked in by the cooling fan module 410. Accordingly, the suction power of the cooling fan module 410 to suck air from the second air passage AC2 may decrease.

In this embodiment, the side through hole 272 is open toward the tank mounting portion 243 of the upper case 240. In this case, the external air flowing in through the side penetration hole 272 can cool the water tank 450 and, as a result, lower the temperature of the water stored in the water tank 450.

Additionally, the side through hole 272 formed in one of the two side covers 270 may be opened toward the main control unit 700. The side through hole 272 may be formed in whole or in part to face the main control unit 700. The main control unit 700 can generate a lot of heat due to the mounted elements, and external air flowing in through the side through hole 272 can effectively cool the main control unit 700.

A side coupling portion 273 may be provided at the edge of the side cover 270. The side coupling portion 273 may couple the side cover 270 to a counterpart component such as the bottom case 210, the upper case 240, or the front frame 280. The side coupling portion 273 may be coupled to the counterpart component by a fastener such as a screw, or may be coupled to the counterpart component by welding. In this embodiment, the side coupling part 273 disposed at the lower part of the plurality of side coupling parts 273 may be fixed to the door hinge (H) with a fastener.

A side spacer 275 may be formed on the side cover 270. The side spacer 275 may protrude outward from the side cover 270. The side spacer 275 can separate the side cover 270 from the side portion 5 of the kitchen furniture 1. Therefore, external air can flow into the side gap (G2, see Figures 6 and 10) caused by the side spacer 275, and can be supplied to the electrical equipment compartment (S2) through the side through hole 272. there is. Accordingly, the side gap G2 may also be referred to as a side intake port G2. The side intake port (G2), together with the lower intake port (G1), may be an intake port of the cooking appliance.

Next, looking at the front frame 280, as shown in FIG. 8, the front frame 280 may have a substantially rectangular frame shape. The front frame 280 may be placed in front of the inner case 100. The center of the front frame 280 is open so as not to obscure the cavity S1. The front frame 280 may be viewed as a type of front case.

The front frame 280 may protrude further upward than the inner case 100. This upwardly protruding portion may form a part of the electrical compartment S2. The upper part of the front frame 280 may form the electric vehicle compartment (S2) together with the rear cover 230, upper case 240, upper cover 260, and side cover 270.

In this embodiment, both ends of the front frame 280 protrude upward, but the portion between them may be formed to have a relatively low height. In other words, the upper center of the front frame 280 may be viewed as having a cutout portion 280a (see FIGS. 8 and 17) formed in a structure in which part of the upper center is omitted. The cutout portion 280a, which is recessed at the top of the front frame 280, can be covered by the front panel 420, which will be described below. In Figure 18, the front panel 420 is disposed in front of the front frame 280, and the cutout portion 280a of the front frame 280 is covered.

A pair of coupling posts 280b protruding relatively upward may be provided at both ends of the cutout portion 280a. Both ends of the front panel 420 may be coupled to the coupling post 280b, respectively. More precisely, a pair of panel fixing parts 421 at both ends of the front panel 420 may be coupled to the pair of coupling posts 280b, respectively.

The front frame 280 may be made of metal material. And the front frame 280 may be coated with glassy ceramics. That is, the surface of the front frame 280 can be manufactured using a vitreous enamel method. For reference, reference numeral 180 in FIG. 8 indicates a case holder, and the case holder 180 can be used to secure the inner case 100 and the front frame 280 to an enamel device when producing enamel. Additionally, the case holder 180 may be used as a connector when assembling the inner case 100 and the rear case 220.

However, when the surface of the front frame 280 is manufactured with enamel, the front frame 280 may be distorted due to the high temperature manufacturing method. If the front frame 280 is distorted, assembly errors may occur in parts where it is connected to other parts. In particular, in this embodiment, the hinge module 600 and the opening device 480, which are operating parts, are disposed on the upper part of the front frame 280, so it is necessary to suppress deformation of the front frame 280 as much as possible. To prevent this, in this embodiment, a cutout portion 280a is formed at the upper center of the front frame 280. The cutout portion 280a omitted in this way can be free from deformation of the front frame 280.

As described above, the coupling posts 280b are relatively protruding on both sides of the cutout portion 280a of the front frame 280. The coupling post 280b may be coupled to the hinge module 600. The hinge module 600 is connected to the controller 500 and receives the load generated when the controller 500 rotates. Since the front frame 280 is made of metal, even if a large load is applied to the hinge module 600, the hinge module 600 receives the load generated when the controller 500 rotates. The hinge module 600 can be firmly supported.

As another example, the front panel 420 may not be a separate piece, but may be made integrally with the front frame 280. Alternatively, there may be no cutout portion 280a with a portion omitted in the upper center of the front frame 280, and the entire top of the front frame 280 may have the same height. The structure of the front panel 420 will be described again below.

Referring to FIG. 17, the front frame 280 and parts directly or indirectly connected to the front frame 280 are shown in an exploded state. Here, the fact that the part is indirectly connected means that the part is not directly fixed to the front frame 280, but a part of it passes through the front frame 280.

The skeleton of the front frame 280 may be comprised of a frame body 281 that has a substantially rectangular frame shape. The edge portion of the frame body 281 may be directly fixed to the inner case 100. And the lower part of the front frame 280 can be fixed to the bottom case 210 described above. Additionally, both ends of the frame body 281 may be combined with the side cover 270. In this way, a plurality of parts can be connected to each other through the frame body 281.

A frame penetrating portion 281a may be formed at the center of the frame body 281. The frame penetration portion 281a may be a portion exposing the cavity S1. The size and shape of the frame penetration portion 281a can be variously modified to fit the cavity S1.

An exhaust port 282 may be formed in the front frame 280. The exhaust port 282 may be formed to penetrate the upper part of the front frame 280 in the front-to-back direction. The exhaust port 282 may serve as an outlet through which air discharged through the guide duct 250 is discharged to the outside of the cooking appliance. The exhaust port 282 may extend long along the left and right directions from the upper part of the front frame 280. The exhaust port 282 may be composed of one or multiple exhaust ports.

The exhaust port 282 may be open between the door 300 and the controller 500. Accordingly, the air discharged through the exhaust port 282 may be discharged forward through the space between the door 300 and the controller 500. Since the exhaust port 282 is usually covered by the controller 500, the exhaust port 282 does not spoil the aesthetics of the cooking appliance. In particular, the controller 500 is equipped with an air guide 590, which will be described later, to make the exhaust port 282 more invisible from the user's field of view. This structure will be explained again below.

For reference, in FIG. 20, the direction in which air is discharged forward along the third air passage AC3 formed inside the guide duct 250 is indicated by arrow ①. The air may move forward and be discharged through the exhaust port 282. At this time, the top of the door 300 may be placed below the exhaust opening 282, and the water tank 450 may be placed above the exhaust opening 282.

Referring to FIG. 17, the front frame 280 and parts directly or indirectly connected to the front frame 280 are shown in an exploded state. An upper hinge hole 283 may be formed at the top of the front frame 280. The upper hinge hole 283 is a portion penetrated by the coupling post 280b of the front frame 280, and the driving arm 820, which is part of the hinge module 600, moves forward through the upper hinge hole 283. may protrude. In this embodiment, the upper hinge hole 283 is formed on each pair of coupling posts 280b. More precisely, the upper hinge hole 283 can be viewed as being formed at a higher position than the exhaust port 282.

A lower hinge hole 284 may be formed in the lower part of the front frame 280. The lower hinge hole 284 is a portion that penetrates a portion of the front frame 280, and a portion of the door hinge H may protrude forward through the lower hinge hole 284. In this embodiment, the lower hinge holes 284 are formed on both sides of the lower end of the front frame 280. The door hinge (H) connected to the bottom of the door 300 through the lower hinge hole 284 is a pull-down type in which the top of the door 300 rotates up and down around the bottom. Allows you to meet.

A lower seating portion 285 may be provided at the lower portion of the front frame 280. The lower seating portion 285 may be bent forward from the lower portion of the front frame 280. Referring to FIG. 9 , the lower seat portion 285 may be seated on the upper part of the bottom case 210 .

Looking again at FIG. 17, a frame fastening hole 286 and a frame hanging hole 287 may be formed in the coupling post 280b on which the front frame 280 is provided. The frame fastening hole 286 can be viewed as a through hole so that the front panel 420 can be fixed by a fastener (not shown) when coupled to the front frame 280. The fastener can pass through the panel fixing hole 421a of the front panel 420 and the frame fastening hole 286, respectively, and be assembled between them.

The frame hanging hole 287 may be a hole for temporarily fixing the front panel 420 before the fastener is fastened to the frame fastening hole 286. A hanging hook (421b, see FIG. 22) of the front panel 420 is inserted into the frame hanging hole 287, so that the front panel 420 can be temporarily fixed to the front frame 280. In this embodiment, a pair of frame hanging holes 287 are arranged in pairs on both sides of the fastening hole 286.

A first hinge assembly hole 288 may be formed in the front frame 280. The first hinge assembly hole 288 is for fixing the hinge module 600 to the front frame 280. The first hinge assembly hole 288 may be formed around the upper hinge hole 283. In this embodiment, the first hinge assembly hole 288 is disposed above and below the upper hinge hole 283, but differently, the first hinge assembly hole 288 may be composed of one.

In front of the first hinge assembly hole 288, a second hinge assembly hole 427 (see FIG. 25) of the front panel 420, which will be described later, may be continuously formed. Accordingly, the hinge fastener (B3, see FIG. 51) inserted into the second hinge assembly hole 427 passes through the second hinge assembly hole 427 and the first hinge assembly hole 288, respectively. It can be fastened to the housing assembly hole 613 of the hinge module 600 disposed at the rear of the front frame 280.

Therefore, the front panel 420, the front frame 280, and the hinge module 600 can be assembled with one fastener. Figure 51 shows the hinge fastener B3 passing through the front panel 420 and the front frame 280, respectively, assembled to the hinge module 600.

A door 300 may be provided in front of the front frame 280. The door 300 serves to open and close the cavity (S1). The door 300 can be rotated by having the door hinge (H) connected to the bottom. In this embodiment, the door hinges (H) are composed of a pair, and each can be connected to both lower sides of the door 300. The door 300 can open and close the cavity S1 using a pull-down method in which the upper end rotates up and down around the lower end.

The door 300 may be formed in an overall hexahedral shape with a predetermined thickness. Additionally, a see-through window may be applied to at least a portion of the door 300 to see through the cavity S1. The viewing window needs to be formed to withstand high temperature and pressure, and the viewing window may also need functions such as waterproofing and heat dissipation.

Reference numeral 310 indicates a handle. The handle 310 is used to open and close the door 300. The handle 310 may be placed on the upper front of the door 300.

In this embodiment, the door 300 may include a plurality of plates 320. Here, the plate 320 may be made of transparent or translucent glass or plastic material. A plurality of these plates 320 may be stacked at a predetermined distance from each other to form one door 300. For example, the door 300 may include a front plate disposed at the front, a rear plate disposed at the rear, and one or more inner plates disposed between them.

Looking at the cross-sectional view of FIG. 20, a plurality of plates 320 constituting the door 300 are shown. These plates 320 may be stacked on top of each other front and rear. Among these, the front plate 320, which is disposed at the front and forms the front of the door 300, may be coated or have a film attached thereto and may have a different color from the other plates 320. Reference numeral 325 denotes a door gasket attached to the rear of the door 300. The door gasket 325 may serve to seal between the door 300 and the front frame 280.

At this time, the front plate 320 may have a larger area than the other plates 320 disposed behind it. Therefore, the user in front can only observe the front plate 320 of the door 300. And the remaining plates 320 and the door frame 370 disposed behind the front plate 320 are hidden from the user's view. In this way, the aesthetics of the door 300 can be improved.

On the other hand, if the front plate 320 has a relatively large area, a step may be formed between the front plate and the remaining plates 320. A door frame 370 may be coupled to the step. In other words, the door frame 370 fills the step portion.

The skeleton of the door 300 may be formed by the door frame 370. The door frame 370 may form the top, bottom, and side exterior of the door 300. This door frame 370 may be formed in a hexahedral shape with open front and rear sides. That is, the door frame 370 may have a type of square frame. The door hinge (H) may be connected to the door frame (370).

As shown in FIG. 20, the spacer 375 provided on the door frame 370 can be inserted between the plurality of plates 320. The spacer 375 may maintain the gap between the plurality of plates 320.

Looking at the door frame 370 in detail with reference to FIG. 21, the door frame 370 forming the upper surface of the door 300 is shown. The door frame 370 may be in the shape of a bar extending long in one direction. These door frames 370 are composed of a plurality of doors and can be assembled together. For example, the door frame 370 forming the side of the door 300 may be coupled to both ends of the door frame 370 forming the upper surface of the door 300 shown in FIG. 21, where the door 300 ) can be combined with the door frame 370 that forms the bottom of the door.

At both ends of the door frame 370, frame coupling portions 371 may be provided for coupling with other door frames 370 constituting the door frame 370. The frame coupling portion 371 may have a substantially plate-shaped structure. And a coupling hook portion 372 may be provided at the bottom of the frame coupling portion 371. The coupling hook portion 372 may be elastically fastened to another door frame 370. An elastic slit 373 is open inside the coupling hook portion 372 to provide a space in which the coupling hook portion 372 can be elastically deformed.

The door frame 370 may be provided with a plurality of spacers 375. As described above, the plurality of spacers 375 may be inserted between the plurality of plates 320 to maintain the gap between the plates 320. Additionally, the spacers 375 may assist in stable coupling between the door 300 and the door frame 370.

The plurality of spacers 375 may include a first spacer 375a disposed at the front and a second spacer 375b disposed at the rear. Among the plurality of plates 320, the first spacer 375a may be inserted between the front plate and the inner plates disposed behind the front plate, and the second spacer 375b may be inserted between the rear plate and the inner plate disposed behind the rear plate. It can be sandwiched between inner plates placed in.

The distal end of the first spacer 375a and the distal end of the second spacer 375b may each have different protruding lengths to form a step. This step may serve to fill the height difference formed as the plurality of plates 320 are formed in different areas. This appearance is shown in Figure 20.

Referring to FIGS. 18 and 21, the door frame 370 may be provided with a door exhaust port 377. The door exhaust port 377 may form a passage at the top of the door 300 that opens the inside of the door 300 to the outside of the door 300. This door exhaust port 377 may be formed to penetrate the top of the door frame 370 in the vertical direction. The air flowing upward inside the door 300 while cooling the door 300 may be discharged upward through the door exhaust port 377 and then discharged forward again. For reference, the air that cools the door 300 may flow between the plurality of plates 320 that make up the door 300.

Looking again at FIG. 21, a locking body 378 may be formed on the door frame 370. The locking body 378 may operate the door locking device 800 to maintain the closed state of the door 300. The locking body 378 may protrude rearward of the door frame 370. The locking body 378 may have a substantially hexahedral shape. The locking body 378 may be disposed to be biased toward one of both ends of the door frame 370. In this embodiment, the locking body 378 is formed on the door frame 370, but in another example, the locking body 378 may be provided directly on the door 300 rather than on the door frame 370. there is.

The locking body 378 may be placed on an inclined surface 374 formed at the top of the door frame 370. The upper part of the door frame 370 is formed to be inclined downward toward the cases 100 and 200, and this inclined portion may form an inclined surface 374. And, the locking body 378 is disposed on the inclined surface 374. Additionally, the upper outlet of the door exhaust port 377 may also be opened on the inclined surface 374.

The inclined surface 374 may form a kind of recessed space between the door 300 and the front frame 280. The locking body 378 may protrude upward from this depressed space and fill a portion of the depressed space. And, when a kind of recessed space is created between the door 300 and the front frame 280, a space for the latch 850 to rotate is secured, and accordingly, when the latch 850 rotates, the door There may be no interference with the rear of 300.

A locking hole 379 with an open top may be formed in the locking body 378. The latch 850 of the door lock device 800, which will be described below, can be inserted into the lock hole 379. When the latch 850 is inserted into the lock hole 379, the latch 850 can lock the door 300 to prevent the door 300 from opening arbitrarily.

The entrance of the locking hole 379 may be located above the top of the pressing surface 378a. Accordingly, the rotation angle for the latch 850 to be caught in the lock hole 379 may be reduced. In addition, the latch 850 can be stably maintained at the entrance of the relatively protruding locking hole 379.

Looking at the enlarged view of FIG. 21, the locking hole 379 may extend long to the left and right. The left-right length of the lock hole 379 may be larger than the left-right width of the latch 850. Accordingly, the lock head 855 coupled to the end of the latch 850 can be moved in the left and right directions along the lock hole 379 after being separated from the latch 850. In other words, the locking hole 379 is a part where the latch 850 is held, and may also serve as a path along which the lock head 855 moves after being separated. In Figure 79, the lock head 855 is shown moving to the left along the lock hole 379 after being separated from the latch 850.

Referring to FIG. 68, the locking hole 379 may be opened upward at the center of the locking body 378, and a planar press is located on the left or right side of the locking hole 379 in the locking body 378. A face 378a may be formed. The pressing surface 378a interferes with the closing button 870 and becomes a pressing surface of the closing button 870. At this time, the entrance of the locking hole 379 can be raised to the same level as the upper surface of the door frame 370. Through this, the door 300 can provide a unified aesthetic to the user.

In this embodiment, the pressing surface 378a is formed symmetrically on both sides about the locking hole 379. Based on Figure 68, it is the left pressing surface (378a) that actually presses the closing button (870). However, if the pressing surface (378a) has a symmetrical structure, the aesthetics can be improved, and the locking hole (379) is provided. This can prevent the strength of the locking body 378 from weakening.

And, when the door 300 is closed, the pressing surface 378a may form a plane parallel to the front of the cases 100 and 200, more precisely, the front of the front frame 280. In this way, the front of the front frame 280 and the pressing surface 378a are brought into close contact, thereby providing a unified aesthetic.

Next, looking at the cooling fan module 410, the cooling fan module 410 sucks air from the second air passage (AC2) and flows it into the third air passage (AC3) formed inside the guide duct 250. It can be discharged. In addition, the cooling fan module 410 sucks air introduced through the air inlet/outlet portion 265 of the upper cover 260 and discharges it into the third air passage AC3 formed inside the guide duct 250. You may. That is, the cooling fan module 410 can suck in external air through a plurality of paths and then discharge it forward along the guide duct 250.

The cooling fan module 410 may be placed in the guide duct 250. More precisely, as shown in FIG. 15, the fan body 412 of the cooling fan module 410 may be fixed to the fan fastening portion 254 of the guide duct 250. The fan body 412 may have a substantially circular frame shape. A plurality of holes are formed in the fan body 412 so that air flowing into the electrical system S2 from the second air passage AC2 can be sucked in.

The cooling fan module 410 may be equipped with a fan motor 415. The fan motor 415 can generate rotational force by receiving power from the main control unit 700. A fan blade 417 may be connected to the fan motor 415. The fan blade 417 can intake and discharge air through rotation. The fan blade 417 may be in the form of a centrifugal fan, such as a blower fan or a sirocco fan, which is a multiblade fan. This is just one example, and the fan blade 417 may have various types of fan structures that can intake and exhaust air.

Next, the front panel 420 disposed in front of the front frame 280 will be described. The front panel 420 may be disposed at the upper front of the front frame 280. Additionally, the front panel 420 may be positioned between the back of the controller 500 and the front frame 280 when the controller 500 is closed. The front panel 420 can enhance aesthetics by covering the upper part of the front frame 280, and has a cam protrusion 422, which is an entrance through which the cam portion 485 of the opening device 480, which will be described below, protrudes, and Entrances 424 of the tank chambers through which the water tank 450 enters and exits may be formed.

The front panel 420 may be made of synthetic resin material. The front panel 420 can easily implement a more complex shape compared to one made of metal. Such a complex shape can be implemented on the front panel 420, and the front panel 420 can be assembled to the front frame 280 to form the front of the cooking appliance. Unlike this embodiment, the front panel 420 may be made integrally with the upper part of the front frame 280.

Referring to FIG. 17, the front panel 420 may have a thin plate-shaped structure. The front panel 420 may be disposed at the upper front of the front frame 280. More precisely, the front panel 420 may cover the cutout portion 280a of the front frame 280. Looking at FIG. 18, you can see that the upper part of the front frame 280 is covered by the front panel 420.

Let's look at the structure of the front panel 420 in detail with reference to FIGS. 22 to 27. Panel fixing parts 421 may be provided at both ends of the front panel 420. The panel fixing portion 421 forms part of both ends of the front panel 420 and may be coupled to both upper ends of the front frame 280, respectively.

At this time, the panel fixing part 421 may protrude forward compared to the center of the front panel 420. The panel fixing part 421 has a stepped structure at both ends of the front panel 420 and can protrude forward. The space between the pair of protruding panel fixing parts 421 may be relatively depressed backwards.

When the controller 500 is in the first position, the main housing 510 of the controller 500 may be placed in a relatively recessed portion between the pair of panel fixing parts 421. Additionally, both ends of the control panel 530 constituting the front of the controller 500 may be disposed in front of the pair of panel fixing parts 421. In this case, as shown in FIG. 2, when the controller 500 is closed, only the control panel 530 of the controller 500 can be exposed on the upper front of the cooking appliance. At the same time, the main housing 510 of the controller 500 may not be exposed because it is hidden between the pair of panel fixing parts 421 and the upper surface 4 of the kitchen furniture from the rear. This close contact structure between the controller 500 and the front panel 420 can provide a unified aesthetic to the cooking appliance.

To this end, a panel fixing hole 421a may be formed in the panel fixing part 421 to fix the panel fixing part 421 to the front frame 280. The panel fixing hole 421a may correspond to the fastening hole 286 of the front frame 280. When the fastener sequentially passes through the panel fixing hole 421a and the fastening hole 286 of the front frame 280 and is tightened, the panel fixing part 421 can be fixed to the front frame 280.

Referring to FIG. 22, a hanging hook 421b may be provided on the panel fixing part 421 adjacent to the panel fixing hole 421a. The hanging hook 421b may protrude from the rear of the panel fixing part 421. The hanging hook 421b can be hung on the frame hanging hole 287 of the front frame 280. When the hanging hook 421b is caught in the frame hanging hole 287, the front panel 420 can remain provisionally assembled to the front frame 280 even before fastening the fasteners. In this state, when the fastener is fastened to the panel fixing hole 421a and the fastening hole 286, the front panel 420 can be completely assembled to the front frame 280. In this embodiment, the hanging hook (421b) is provided above and below the panel fixing hole (421a). Alternatively, only one hanging hook (421b) may be provided or may be omitted.

A cam protrusion 422 may penetrate the front panel 420. The cam protrusion 422 may be formed in a shape in which a portion of the center of the front panel 420 penetrates in the forward and backward directions. The cam portion 485 of the opening device 480 can protrude forward or be inserted backward through the cam protrusion 422. The cam protrusion 422 may be formed to have long left and right widths corresponding to the shape of the cam portion 485.

Since the entrance 424 of the water tank 450 is formed in the front panel 420, the cam protrusion 422 is disposed deviated from the center to one side so as not to interfere with the entrance 424 of the water tank 450. It can be. In this embodiment, the cam protrusion 422 is formed at a position tilted to the left from the center of the front panel 420.

A hinge through hole 423 may be formed in the front panel 420. The hinge hole 423 may be disposed closer to the center of the front panel 420 than the panel fixing portion 421 of the front panel 420. The hinge hole 423 may be connected to the upper hinge hole 283 of the front frame 280 to form a continuous passage. A portion of the hinge module 600, more precisely, the driving arm 620 of the hinge module 600 may protrude forward through the hinge hole 423. The driving arm 620 may sequentially pass through the upper hinge hole 283 of the front frame 280 and the hinge through hole 423 and protrude forward, and the protruding driving arm 620 may be connected to the controller. It can be connected to (500).

An entrance 424 of the water tank 450 may be formed in the front panel 420. Here, the entrance 424 of the water tank 450 refers to an entrance through which the water tank 450 is brought out to the outside of the cooking appliance or retracted into the inside of the cooking appliance. The entrance 424 of the water tank 450 may also be referred to as the entrance of the tank chamber, which will be explained below. Hereinafter, the entrance 424 of the water tank 450 will be referred to as the tank entrance 424.

The tank entrance 424 may extend longer in the left and right directions than in the up and down directions. The tank entrance 424 may be formed to fit the shape of the water tank 450. Accordingly, the tank inlet 424 does not necessarily need to be limited as shown.

Referring to FIGS. 24 and 25, the tank entrance 424 may be provided with entrance guides 424a, 424b, and 424c. The entry and exit guides 424a, 424b, and 424c may guide the entry and exit directions of the water tank 450. Additionally, the entry and exit guides 424a, 424b, and 424c can prevent the water tank 450 from sagging to one side during the entry and exit process.

These entry and exit guides 424a, 424b, and 424c may include an upper guide 424a, a lower guide 424b, and a side guide 424c. At this time, the upper guide 424a and the lower guide 424b may extend in directions parallel to each other.

More precisely, the upper guide 424a and the lower guide 424b may extend in a direction parallel to the withdrawal and retraction directions of the water tank 450. For reference, in Figure 20, the upper guide (424a) and the lower guide (424b) can be seen extending parallel to the upper and lower surfaces of the water tank 450, respectively. Therefore, the water tank 450 can be pulled out toward the front (direction of arrow ②) without being twisted in either direction.

Referring to FIG. 20, the upper guide 424a and the lower guide 424b may be arranged around the edge of the tank entrance 424. Accordingly, the upper guide 424a and the lower guide 424b may be viewed as part of the tank entrance 424. The upper guide 424a may extend along the upper edge of the tank entrance 424, and the lower guide 424b may extend along the lower edge of the tank entrance 424.

The upper guide 424a and the lower guide 424b may extend parallel to each other. The upper guide 424a supports the upper surface of the water tank 450, and the lower guide 424b supports the lower surface of the water tank 450. At this time, the upper guide 424a and the lower guide 424b may each come into surface contact with the surface of the water tank 450. Accordingly, the water tank 450 can accurately move forward or backward without being tilted to either side.

The upper guide 424a may have a thin plate-shaped structure. And the upper guide 424a may extend along the top of the tank entrance 424. The upper guide 424a may extend rearward from the top of the tank entrance 424.

Referring to FIG. 24, the end of the upper guide 424a may be spaced apart from the front 462 of the tank housing 460, which will be described below. When the end of the upper guide 424a is separated from the front 462 of the tank housing 460, the space provided compensates to some extent even if the tank housing 460 or the front panel 420 is deformed. It becomes a space where you can do something.

The lower guide 424b is provided to face the upper guide 424a and may extend parallel to the upper guide 424a. The lower guide 424b may be in the shape of a thin plate extending along the bottom of the tank inlet 424. In this embodiment, the lower guide 424b, like the upper guide 424a, may extend rearward from the bottom of the tank entrance 424.

At this time, the lower guide 424b may protrude further toward the front 462 of the tank housing 460 than the upper guide 424a. Referring to FIG. 24, one end of the lower guide (424b) is in contact with the front 462 of the tank housing 460, and one end of the upper guide (424a) is forward from the front 462 of the tank housing 460. You can see that they are spaced apart. Since the bottom portion of the water tank 450 is mainly supported by the front panel 420 due to its weight, more stable entry and exit can be achieved by increasing the length of the lower guide 424b.

Additionally, a side guide 424c may be provided between the upper guide 424a and the lower guide 424b. The side guide 424c may be a thin plate-shaped structure that protrudes toward the rear of the front panel 420. The side guide 424c may form the side wall of the tank entrance 424.

Looking at FIG. 24, one end of the side guide 424c can be seen in contact with the front 462 of the tank housing 460. That is, like the lower guide 424b, one end of the side guide 424c may extend to the front 462 of the tank housing 460.

In this embodiment, the lower guide 424b and the side guide 424c may protrude toward the front 462 of the tank housing 460 by the same length. Accordingly, the lower guide 424b and the side guide 424c can each come into surface contact with the front 462 of the tank housing 460. Therefore, the lower part and the side parts that mainly receive load during the entry and exit process of the water tank 450 can be supported by the lower guide 424b and the side guide 424c. In addition, when the tank entrance 424 is exposed to the outside, the lower part and sides of the entrance, which are mainly observed with the naked eye, come into surface contact with the front 462 of the tank housing 460, and the aesthetics at the connection portion of the parts may not be impaired. .

As shown in FIG. 31, the end of the lower guide 424b may be in close contact with the stepped rib 466 of the tank housing 460. More precisely, the bottom surface of the end of the lower guide 424b may be stacked with the upper surface of the stepped rib 466. Accordingly, a surface contact section can be formed between the lower guide 424b and the stepped rib 466.

This surface contact section can prevent water leakage from occurring through the joint area between the front panel 420 and the tank housing 460. For example, if a water leak occurs in the water tank 450, it may accumulate on the bottom of the tank housing 460. Water accumulated in the tank housing 460 may move to the joint area between the front panel 420 and the tank housing 460, but the stepped ribs 466 of the lower guide 424b and the tank housing 460 ) Water leakage can be prevented by the surface contact section.

A first pocket portion 425 may be formed in the tank inlet 424. The first pocket portion 425 may be formed in a direction to widen the width of the tank inlet 424. The first pocket portion 425 allows the user to more easily hold the water tank 450 when holding the water tank 450 through the tank inlet 424.

The first pocket portion 425 may be made to be inclined downward toward the front of the front panel 420. In this embodiment, the first pocket portion 425 is formed in a direction that increases the vertical height of the tank entrance 424 as it moves forward. Referring to FIG. 31 , which is a cross-sectional view, the first pocket portion 425 may have an inclined or curved surface whose height decreases toward the front (to the left in the drawing). Therefore, the user can more easily access the water tank 450 through the widened entrance. Additionally, the first pocket portion 425 allows the user to more intuitively know the holding position of the water tank 450.

In this embodiment, a second pocket portion 455 is formed in the water tank 450 at the same location as the first pocket portion 425 of the front panel 420. Accordingly, the first pocket portion 425 and the second pocket portion 455 may form one pocket P connected to each other. 30 and 31, the first pocket portion 425 and the second pocket portion 455 may be made to be recessed at corresponding positions. The user's finger may be inserted into the pocket (P). The shape of the second pocket portion 455 will be described again below.

Referring to FIG. 25, a second hinge assembly hole 427 may penetrate the front panel 420. The second hinge assembly hole 427 may be formed adjacent to the hinge through hole 423. The hinge fastener (B3) inserted into the second hinge assembly hole 427 passes through the first hinge assembly hole 288 of the front frame 280 located behind the second hinge assembly hole 427. After doing so, it can be tightened into the housing assembly hole 613 of the hinge module 600 disposed at the rear of the front frame 280. Therefore, the front panel 420, the front frame 280, and the hinge module 600 can be assembled with one fastener. Figure 51 shows the hinge fastener B3 passing through the front panel 420 and the front frame 280, respectively, assembled to the hinge module 600.

The front panel 420 may be provided with a fastening boss 428a. The fastening boss 428a may protrude from the rear of the front panel 420 toward the tank housing 460. The fastening boss 428a may be engaged with the guide mounting piece 468a of the tank housing 460 and fastened to each other by the fastener B1. Figure 24 shows the fastening boss (428a) and the guide mounting piece (468a) fastened with a fastener (B1).

As shown in FIG. 25, the fastening boss 428a may be placed adjacent to the tank entrance 424. In this embodiment, the fastening bosses 428a are disposed on both sides of the upper part of the tank entrance 424. As another example, the fastening boss 428a may be placed at the bottom of the tank entrance 424, or may be placed at both the top and bottom.

A housing fastening groove 428b may be formed in the front panel 420. The housing fastening groove 428b may be recessed in the rear of the front panel 420 or may be formed by penetrating the front panel 420. The fastening protrusion 468b of the tank housing 460, which will be described below, can be inserted into the housing fastening groove 428b. The housing fastening groove 428b and the fastening protrusion 468b, together with the fastening boss 428a and the guide mounting piece 468a, allow the front panel 420 and the tank housing 460 to be coupled together.

The housing fastening groove 428b may be disposed adjacent to the tank entrance 424. In this embodiment, the housing fastening grooves 428b are disposed on both sides of the lower part of the tank entrance 424. More precisely, a pair of fastening bosses 428a are disposed at the top of the tank entrance 424, and a pair of housing fastening grooves 428b are disposed at the bottom. As another example, the housing fastening groove 428b may be disposed at the top of the tank entrance 424, or may be disposed at both the top and bottom. Additionally, the housing fastening groove 428b may be provided on the tank housing 460, and the fastening protrusion 468b may be provided on the front panel 420.

Referring to FIG. 27, the front panel 420 may be provided with a panel rib 429. The panel rib 429 may be disposed at the rear edge of the front panel 420. The panel rib 429 may protrude rearward from the back of the front panel 420. The panel rib 429 may cover the rear of the front panel 420 and reinforce the strength of the front panel 420.

In this embodiment, the panel rib 429 may extend in the left and right directions from the upper rear surface of the front panel 420. The panel rib 429 may be disposed at a higher position than the tank entrance 424 at the rear of the front panel 420.

An avoidance portion (OM) may be formed in the lower part of the front panel 420. The avoidance portion OM may have a form in which a portion of the lower part of the front panel 420 is omitted. The avoidance portion (OM) is formed so that the lower part of the front panel 420 does not impede the discharge of air. The avoidance portion OM may be recessed upward from the bottom of the front panel 420. More precisely, the avoidance portion OM can be viewed as being formed between the lower fastening bodies 426 that protrude from below both left and right ends of the front panel 420, respectively.

Next, the water tank 450 that constitutes the steam device will be described. Referring to FIGS. 17 to 19, the water tank 450 may be stored in the electrical equipment room (S2). The water tank 450 can supply water for a steam function to the heater while stored in the electrical equipment room (S2). And when the water tank 450 is withdrawn from the electrical equipment room (S2), the user can fill or empty the water tank 450 with water. Here, the steam function is not necessarily limited to cooking food. For example, the steam device may be used to clean the inside of the galley.

In this embodiment, the water tank 450 is disposed behind the controller 500. Accordingly, when the controller 500 is closed, the water tank 450 is not exposed to the outside. As shown in FIG. 19, the water tank 450 can be exposed to the outside only when the controller 500 is opened.

Looking at the structure of the water tank 450, the water tank 450 may have an approximately hexahedral structure. The water tank 450 has a water storage space 451 (see FIG. 31) inside which can store water. The water stored in the water tank 450 may be heated by the heater of the steam device and sprayed into the cavity S1 in the form of steam. Additionally, when a cleaning function is performed to remove foreign substances such as limestone present inside the piping of the cooking appliance, water that has completed the cleaning function may flow into the water tank 450.

A tank cover 452 may be provided on the top of the water tank 450. The tank cover 452 may cover the upper part of the water storage space 451. In this embodiment, the tank cover 452 is configured separately from the water tank 450. Additionally, the tank cover 452 may be provided with a separate tank lid 452'. By removing the tank lid 452', the user can fill the water storage space 451 with water or empty the water in the water storage space 451. As another example, the tank cover 452 may be omitted or may be formed integrally with the water tank 450.

The water tank 450 may be provided with a tank connection pipe 453. The tank connector 453 may function as a connector for moving water into and out of the storage space 451. The tank connection pipe 453 may protrude outward from the water tank 450. This protruding portion may engage with the housing connector 463 of the tank housing 460, which will be described below. On the contrary, the housing connector 463 of the tank housing 460 protrudes in the direction of the water tank 450, and the tank connection is recessed so that the housing connector 463 is inserted into the water tank 450. A pipe 453 may be provided.

In this embodiment, the tank connector 453 consists of a pair. One of the pair of tank connection pipes 453 can supply water to the outside, and the other can allow external water to flow in. If the cooking appliance does not have a cleaning function, the tank connector 453 may be configured as one.

Referring to FIG. 31, the tank cover 452 may be provided with a cover sealing portion 452a. The cover sealing portion 452a can prevent water leakage between the main body of the water tank 450 and the joint portion of the tank cover 452. The cover sealing portion 452a may be continuously disposed around the edge of the tank cover 452. Reference numeral 452b denotes a sealing guide for fixing the cover sealing portion 452a.

At this time, the front surface of the front panel 420 and the front surface of the water tank 450 may form a continuous plane. That is, the front surface of the front panel 420 and the front surface of the water tank 450 may form the same plane. In this way, the cooking appliance can provide the user with a unified aesthetic.

A second pocket portion 455 may be formed in the water tank 450. The second pocket portion 455 may be formed at a portion where the front of the front panel 420 and the front of the water tank 450 are connected to each other. The second pocket portion 455 may be recessed in the front of the water tank 450. The second pocket portion 455 may provide a space for the user to hold the water tank 450 when taking it out or putting it back in.

The second pocket portion 455 may be formed at the front lower portion of the water tank 450. Additionally, the second pocket portion 455 may be formed to gradually increase in height toward the center of the water tank 450. That is, the second pocket portion 455 may be formed to gradually widen in vertical width from the front of the water tank 450 toward the rear. As shown in FIG. 31, the second pocket portion 455 is formed in an inclined direction toward the center of the water tank 450, thereby enlarging the internal space of the second pocket portion 455. Accordingly, the user can more easily hold the water tank 450 by inserting his or her finger into the second pocket portion 455.

A slip prevention rib 455a' may be provided on the surface 455a of the second pocket portion 455. The slip prevention rib 455a' may protrude from the surface 455a of the second pocket portion 455. The slip prevention ribs 455a' may serve to increase friction between the user's fingers and the surface 455a of the second pocket portion 455. A plurality of the slip prevention ribs 455a' may be arranged at regular intervals along the front to the back of the second pocket portion 455.

Meanwhile, the second pocket portion 455 may be formed at the same location as the first pocket portion 425 of the front panel 420. Accordingly, the first pocket portion 425 and the second pocket portion 455 may form one pocket P connected to each other. 30 and 31, the first pocket portion 425 and the second pocket portion 455 may be made to be recessed at corresponding positions. The user can more easily insert his/her finger into the pocket (P) through the entrance of the pocket (P) formed by the first pocket portion (425) and the second pocket portion (455).

In particular, as shown in FIG. 31, the first pocket portion 425 may extend slanted upward toward the rear, and the second pocket portion 455 may also extend slanted upward toward the rear. Accordingly, the user's fingers can be naturally guided upward, and at the same time, the user can grasp the innermost part of the pocket (P).

Additionally, the pocket P may be disposed at the top of the exhaust port 282. Referring to FIG. 31, the exhaust port 282 may gradually become narrower in width toward the front. Accordingly, when the pocket (P) is disposed at the upper part of the exhaust port 282, the vertical height of the entrance portion of the pocket (P) can be secured to be large.

Next, the tank housing 460 in which the water tank 450 is stored will be described. Referring to FIGS. 28 and 29, the tank housing 460 may have a substantially hexahedral housing body 461 forming the skeleton. The housing body 461 may provide a tank chamber in which the water tank 450 is stored inside the cooking appliance. To this end, the housing body 461 is opened forward, and a tank chamber matching the shape of the water tank 450 can be formed inside.

The tank chamber may have an approximately hexahedral shape. The tank chamber may be opened forward and upward, respectively. In other words, the tank housing 460 may have a structure that omits the front and top surfaces, respectively, and is open forward and upward. The open front of the tank chamber becomes an opening through which the water tank 450 can be entered and exited.

A downwardly depressed bottom may be formed on the bottom of the tank chamber. The recessed bottom may be formed at the center of the bottom of the tank chamber. The recessed bottom can reduce the contact area between the tank housing 460 and the water tank 450, thereby reducing friction. Additionally, even if water leakage occurs in the water tank 450 and the tank housing 460, the recessed bottom portion can store a predetermined amount of water. The water stored in the bottom of the depression may naturally evaporate due to the heat inside the battlefield.

In this embodiment, the opening formed in the front of the tank chamber may form a continuous path with the tank entrance 424. Accordingly, the water tank 450 can enter and exit the tank chamber through a continuous path formed by the opening of the tank chamber and the tank entrance 424 of the front panel 420.

Meanwhile, the upper surface of the tank housing 460 is omitted, but since the upper cover 260 shields the upper part of the tank housing 460, it may be omitted. In particular, if the upper surface of the tank housing 460 is omitted, the contact area between the surface of the water tank 450 and the tank housing 460 may be reduced during the entry and exit process of the water tank 450, thereby reducing friction. there is.

As another example, the top of the tank housing 460 may be provided, and only the front of the tank housing 460 may be open. In another example, the tank housing 460 may be omitted, and the water tank 450 may be directly stored in the tank chamber provided in the electrical equipment room S2.

The front 462 of the tank housing 460 may be disposed toward the rear of the front panel 420. The front 462 of the tank housing 460 may face both left and right ends of the tank entrance 424 formed on the front panel 420. Referring to FIG. 24, the front 462 of the tank housing 460 may be in close contact with the side guide 424c of the front panel 420.

A housing connector 463 may be provided on the rear of the tank housing 460. The housing connector 463 may be engaged with the tank connector 453 of the water tank 450 to form a continuous internal flow path. The housing connector 463 can supply water in the water storage space 451 of the water tank 450 toward the heater. Additionally, the housing connection pipe 463 may perform a cleaning function and discharge water remaining in the internal pipe of the cooking appliance into the water storage space 451. For example, the housing connector 463 is a first housing connector 463a for supplying water into the cooking appliance, and discharges water remaining in the internal pipe of the cooking appliance into the water storage space 451. It may include a second housing connector (463b) for this purpose.

In this embodiment, the housing connector 463 may protrude rearward. The protruding housing connector 463 may be connected to the pump 470 (see FIG. 18). The pump 470 can supply water from the storage space 451 toward the heater through the housing connection pipe 463 and the tank connection pipe 453. The pump 470 is composed of two, one supplies water from the water storage space 451 to the heater, and the other pumps water remaining in the internal piping of the cooking appliance into the water storage space 451. It may be possible.

At this time, the tank housing 460 may be spaced apart from the floor of the electrical equipment room (S2). More precisely, the bottom of the housing body 461 of the tank housing 460 may be spaced apart from the bottom of the electrical equipment compartment (S2). Since the floor of the electrical equipment room (S2) is in contact with the ceiling of the cavity (S1), the temperature inside the cavity (S1) can be directly transmitted to the floor of the electrical equipment room (S2). In this embodiment, the tank housing 460 is spaced upward from the bottom of the electrical compartment (S2), so the temperature inside the cavity (S1) is directly transmitted to the tank housing 460 and the water tank 450. You can prevent it from happening.

Additionally, the height of the tank chamber may be smaller than the gap between the upper surface of the guide duct 250 and the ceiling of the electrical equipment room S2. Accordingly, the lower part of the tank chamber may be spaced upward from the floor of the electrical equipment room (S2), and the upper part of the tank chamber may be spaced apart from the ceiling of the electrical equipment room (S2). As another example, the ceiling surface of the battlefield room S2, that is, the bottom surface of the upper cover 260, may constitute the upper part of the tank chamber.

In addition, referring to FIG. 22, the tank housing 460 may be placed on an air passage for cooling. More precisely, the tank housing 460 can be arranged to overlap in the vertical direction with the guide duct 250 that guides the discharge of air. In this embodiment, a portion of the tank housing 460 is disposed on the upper part of the guide duct 250. In this case, the tank housing 460 and the water tank 450 stored in the tank housing 460 can be cooled by the air passing through the guide duct 250, and the temperature of the water in the water storage space 451 can also be adjusted. It can be lowered.

As a result, the tank housing 460 is spaced apart from the floor of the electrical equipment compartment (S2), thereby preventing heat from the floor of the electrical equipment compartment (S2) from being directly transmitted to the tank housing 460, and the tank A portion of the housing 460 is disposed on the guide duct 250 so that it can be cooled by air passing through the guide duct 250. Accordingly, the tank housing 460 and the water tank 450 stored therein can be prevented from being deformed by high heat.

In this embodiment, the tank chamber of the tank housing 460 may be spaced apart from the floor surface of the battlefield room S2 and the ceiling surface of the battlefield room S2, that is, the bottom surface of the upper cover 260. . As another example, the tank chamber of the tank housing 460 is spaced apart from the floor of the battlefield room (S2), but the ceiling surface of the battlefield room (S2) may constitute the upper surface of the tank chamber.

Referring to FIG. 24, the tank housing 460 may be provided with stepped ribs 466. The stepped rib 466 may protrude forward from the lower part of the front 462 of the tank housing 460. The stepped ribs 466 may be provided in the left and right directions at the lower part of the front 462 of the tank housing 460.

The stepped rib 466 may be stacked with the lower guide 424b of the front panel 420. More precisely, the lower guide 424b may be disposed on the upper part of the stepped rib 466. In this case, the step rib 466 and the lower guide 424b overlap each other, thereby preventing water from leaking between the front panel 420 and the tank housing 460. If water leaks between the front panel 420 and the tank housing 460, the water may penetrate into the inside of the cooking appliance, causing malfunction of the cooking appliance and contaminating the cooking appliance. This must be prevented. There is a need.

The stepped rib 466 may have a stepped structure at the lower part of the tank housing 460. Accordingly, the upper surface of the lower guide 424b and the bottom surface of the inlet of the tank chamber may form a continuous plane. As shown in FIG. 24, the upper surface of the housing body 461 and the upper surface of the lower guide 424b have the same height to form a continuous surface. In this way, a unified aesthetic can be created around the entrance of the water tank 450 exposed to the outside.

At this time, the end of the lower guide 424b may be in close contact with the stepped rib 466 of the tank housing 460. More precisely, the bottom surface of the end of the lower guide 424b may be stacked with the upper surface of the stepped rib 466. Accordingly, a surface contact section can be formed between the lower guide 424b and the stepped rib 466.

In this embodiment, the lower guide 424b and the step rib 466 may be in surface contact on two different surfaces. As shown in FIG. 24, the end of the lower guide (424b) is in surface contact with the front of the tank housing 460, and at the same time, the bottom of the lower guide (424b) is in surface contact with the upper surface of the step rib 466. comes into contact In this way, when the lower guide 424b and the step rib 466 are in surface contact on two different surfaces, the contact area between them increases, thereby preventing water leakage more effectively.

As another example, the lower guide 424b and the stepped rib 466 may contact each other on only one side or on three sides. When the lower guide 424b is made into a pocket shape and the step rib 466 is inserted into the pocket, the lower guide 424b and the step rib 466 can be in surface contact with each other on three sides.

Meanwhile, the mounting brackets 467a and 467b of the tank housing 460 can space the tank housing 460 from the floor of the electrical equipment compartment (S2). The mounting brackets 467a and 467b are for fixing the tank housing 460 inside the electrical equipment compartment (S2). The mounting brackets 467a and 467b may protrude from the surface of the tank housing 460. Although not shown, the mounting brackets 467a and 467b may be fixed to the floor of the electrical equipment compartment S2 using fasteners such as screws.

At this time, the upper surface of the guide duct 250 is placed higher than the upper surface of the upper case 240. Therefore, the tank housing 460 needs to be fixed to the upper surface of the guide duct 250 and the upper surface of the upper case 240, respectively. To this end, in this embodiment, the tank housing 460 may be provided with a plurality of mounting brackets 467a and 467b. Some of the plurality of mounting brackets 467a and 467b may be supported on the upper surface of the guide duct 250, and others may be supported on the upper surface of the upper case 240.

More specifically, as shown in FIG. 22, the mounting brackets 467a and 467b may include a first bracket 467a and a second bracket 467b. The first bracket 467a and the second bracket 467b may have different heights. The first bracket 467a may be fixed to the guide duct 250, and the second bracket 467b may be fixed to the upper surface of the upper case 240.

The second bracket 467b may protrude further downward than the first bracket 467a. The length of the second bracket 467b protruding downward from the first bracket 467a may be equal to the height of the guide duct 250. The second bracket 467b may extend downward from the rear end of the tank housing 460. As another example, the second bracket 467b may be provided at the side end of the tank housing 460 rather than the rear end.

Meanwhile, referring to FIG. 18, the side of the tank housing 460 may be arranged to face the side through hole 272 of the side cover 270. External air flowing in through the side through hole 272 can lower the temperature of the tank housing 460 and the water tank 450. As a result, the tank housing 460 and the water tank 450 can be cooled by air moving through the guide duct 250 and air flowing in through the side through hole 272. Of course, the water stored in the water tank 450 can also be cooled by air moving through the guide duct 250 and air flowing in through the side penetration hole 272.

A guide mounting piece 468a may be provided on the front 462 of the tank housing 460. The guide mounting piece 468a may be in contact with the fastening boss 428a of the front panel 420. The guide mounting piece 468a may be engaged with the fastening boss 428a of the front panel 420 and fastened to each other using a fastener B1. The guide mounting piece 468a may protrude upward from the front 462 of the tank housing 460. The guide mounting pieces 468a may be provided on both sides of the tank inlet 424.

Additionally, a fastening protrusion 468b may be provided on the front 462 of the tank housing 460. The fastening protrusion 468b may be inserted into the housing fastening groove 428b of the front panel 420. The housing fastening groove 428b and the fastening protrusion 468b, together with the fastening boss 428a and the guide mounting piece 468a, allow the front panel 420 and the tank housing 460 to be coupled together.

In this embodiment, the fastening protrusion 468b is provided at a lower position than the guide mounting piece 468a. In this way, the fastener B1 can be fastened to the guide mounting piece 468a at a relatively high position, so assembly workability can be improved. As another example, the fastening protrusion 468b may be placed higher than the guide mounting piece 468a, the fastening protrusion 468b may be omitted, and only the guide mounting piece 468a may be provided in the tank housing 460. It may be possible.

At this time, when the fastening protrusion 468b is inserted into the housing fastening groove 428b of the front panel 420, the front panel 420 and the tank housing 460 can be maintained in a pre-assembled state. . Additionally, the fastening protrusion 468b and the housing fastening groove 428b may also serve to guide the assembly position between the tank housing 460 and the front panel 420.

In this way, the structure of the guide mounting piece 468a and the fastening protrusion 468b can bring the tank housing 460 into close contact with the front panel 420. More precisely, the front 462 of the tank housing 460 may be in close contact with the rear of the front panel 420. Accordingly, the opening in the front of the tank chamber can be connected to the tank inlet 424. When the tank housing 460 is in close contact with the front panel 420, the gap between the two can be closed to improve aesthetics, and foreign substances or moisture can be prevented from passing through the gap between the two.

Meanwhile, the front panel 420 is connected to the tank housing 460 through the combination of the housing fastening groove 428b and the fastening protrusion 468b, and the combination of the fastening boss 428a and the guide mounting piece 468a. ) can be combined with. The assembly of the front panel 420 and the tank housing 460 combined in this way can be mounted together on the front frame 280. That is, after the front panel 420 and the tank housing 460 are first assembled, the assembly of the front panel 420 and the tank housing 460 can be mounted together on the front frame 280.

Through the assembly of the fastening protrusion 468b and the housing fastening groove 428b described above, the front panel 420 and the tank housing 460 can be maintained in a pre-assembled state. Therefore, the two parts may be temporarily assembled by first inserting the fastening protrusion 468b into the housing fastening groove 428b, and then mounted on the front frame 280. More precisely, after mounting the front panel (420)/tank housing (460) assembly pre-assembled with each other on the front frame (280), the fastener (B1) is attached to the fastening boss (428a) and the guide mounting piece (468a). It is also possible to conclude a contract.

Meanwhile, the upper part of the front frame 280 may be disposed between the front panel 420 and the tank housing 460. The front panel 420 may be disposed in front of the cutout portion 280a of the front frame 280, and the tank housing 460 may be disposed behind the cutout portion 280a.

Referring to FIG. 20, the lower guide 424b of the front panel 280 and the step rib 466 of the tank housing 460 may be disposed on the upper part of the front frame 280. Additionally, one end of the stepped rib 466 may be stacked on top of the front frame 280. As a result, one end of the stepped rib 466 may be disposed between the upper part of the front frame 280 and the lower part of the lower guide 424b. In this case, as the contact area between the front panel 420, the tank housing 460, and the front frame 280 is expanded, water leakage and the inflow of foreign substances can be prevented more effectively.

Referring to FIG. 28, the tank housing 460 may be provided with a tank sensor 469. The tank sensor 469 may serve to detect whether the water tank 450 is stored in the tank housing 460. When the water tank 450 is introduced into the tank chamber, the side of the water tank 450 presses the tank sensor 469 to sense that it has been received.

The tank sensor 469 may be disposed closer to the rear of the tank housing 460 than the tank inlet 424 based on the center of the tank housing 460. Accordingly, the tank sensor 469 can detect whether the water tank 450 is completely inserted into the tank chamber. Reference numeral 469a denotes a sensor mounting portion for exposing the tank sensor 469 toward the tank chamber.

As another example, the tank housing 460 may be omitted or may be made integral with the cases 100 and 200. If the tank housing 460 is omitted, the tank chamber can be provided inside the electrical equipment compartment S2 by the cases 100 and 200. For example, the tank chamber may be provided in the upper part of the upper case 240 or in the lower part of the upper cover 260. In this case as well, it is preferable that the tank chamber is formed to be spaced apart from the bottom surface of the upper case 240. At this time, the side of the water tank 450 may be moved along a rail-shaped guide structure.

Next, the opening device 480 for opening the controller 500 will be described with reference to FIGS. 32 and 33. The opening device 480 can open the controller 500 forward. More precisely, the opening device 480 automatically moves in the initial movement section of the entire movement section in which the controller 500 is opened.

The controller 500 can move the first opening section starting from the first position by the opening device 480. Additionally, the controller 500 may be moved in the second open section extending from the end of the first open section to the second location by gravity or an external force exerted by the user. The opening operation of the controller 500 will be described in detail again below.

The opening device 480 may be placed in the battlefield room (S2). The opening device 480 may be disposed on the surface of the upper case 240 constituting the electrical equipment compartment S2 or the surface of the guide duct 250 coupled to the upper case 240. In this embodiment, the opening device 480 is fixed to the upper surface of the guide duct 250.

The opening device 480 may be disposed between a pair of hinge modules 600, which will be described below. A pair of hinge modules 600 may serve to guide the movement path of the controller 500, and the opening device 480 may automatically open the controller 500 in the first opening section of the movement path. It can be opened with .

If the opening device 480 is independently disposed between the pair of hinge modules 600, their structure can be simplified compared to the case where the hinge module 600 and the opening device 480 are formed as one piece. Additionally, the opening device 480 may provide a greater opening force (torque) to the controller 500 by being placed relatively far from the hinge module 600, which constitutes the rotation axis of the controller 500.

The opening device 480 may be disposed closer to one of the pair of hinge modules 600. As shown in Figure 33, in this embodiment, the opening device 480 is disposed closer to the hinge module 600 provided on the left side. This may be to avoid the water tank 450 placed on the right side. As another example, the opening device 480 may form part of the hinge module 600. That is, the opening device 480 may be integrated with the hinge module 600.

Also, in this embodiment, the opening device 480 is comprised of one unit, but may be comprised of multiple units. As another example, the opening device 480 may not be placed in the electrical equipment room S2, but may be placed on the side of the controller 500.

The opening device 480 can open the controller 500 using rotational force. The structure of the opening device 480 for generating this rotational force is shown in FIG. 32. The opening device 480 is composed of a single assembled module, and can be placed in the electrical equipment room S2 in an assembled state.

The skeleton of the opening device 480 may be formed by the opening housing 481. An operating space 483 may be formed inside the open housing 481. The cam unit 485 can be entered and exited through the opening of the operating space 483. The cam portion 485 may protrude toward the front of the front panel 420 through the opening of the operating space 483 and the cam protrusion 422 of the front panel 420 connected to the opening. Reference numeral 482 denotes a housing fixing end for fixing the open housing 481 to the guide duct 250.

The open housing 481 may include an opening motor 484. The opening motor 484 can generate rotational force through power delivered from the main control unit 700. The rotational force of the opening motor 484 is transmitted to the cam unit 485 connected to the opening motor 484, so that the cam unit 485 can rotate.

For example, looking at Figure 32, when the opening motor 484 rotates in one direction (direction of arrow ①), the cam unit 485 connected to the opening motor 484 rotates together and the cam unit 485 moves forward ( It can protrude in the direction of arrow ②.

The open motor 484 may be a free motor configured to reverse rotation when a load is applied. For example, if the controller 500 is maintained in a closed state due to an external force when the opening motor 484 is operated and the cam portion 485 is rotated, an overload may be applied to the opening motor 484. At this time, the opening motor 484 can be rotated in the reverse direction to reduce the load.

The cam unit 485 rotates by the opening motor 484 and presses the rear 551 of the controller 500 to open the controller 500 by a predetermined angle. The cam portion 485 may have an eccentric structure in which the portion connected to the opening motor 484 is deviated from the center to one side. In this embodiment, the cam portion 485 may have an overall oval shape. Alternatively, the cam portion 485 may have a polygonal shape extending long in one direction.

Accordingly, in the process of one rotation of the cam portion 485, a portion of the cam portion 485 is connected to the front panel ( It may protrude to the front of 420 and then be inserted back into the operating space 483.

More precisely, the cam portion 485 has a fully stored position where it does not protrude from the open housing 481 during one rotation (see FIG. 33(c)) and a maximum protruding position where it protrudes from the open housing 481 as much as possible. (see Figure 33(b)), it can be returned to the fully stored position (see Figure 33(c)).

Referring to FIG. 38, when the cam portion 485 is completely housed in the open housing 481, the distance H1 from the rotation axis of the opening motor 484 to the rear end of the cam portion 485 is It may be formed to be longer than the distance H2 from the rotation axis of the opening motor 484 to the front end of the cam portion 485. Preferably, the distance (H1) from the rotation axis of the opening motor 484 to the rear end of the cam portion 485 is the distance (H2) from the rotation axis of the opening motor 484 to the front end of the cam portion 485. ) is 6 to 10 times longer than In this case, the protrusion distance of the cam portion 485 can be sufficiently secured by the eccentric structure of the cam portion 485.

At this time, as shown in FIG. 38, when the controller 500 is in the first position, the cam portion 485 may be disposed above the rotation center of the controller 500. 38, since the rotation center of the controller 500 is located at the bottom, the cam portion 485 can be viewed as being located above the rotation center of the controller 500. In other words, it may be said that when the controller 500 is in the first position, the cam portion 485 is disposed between the bottom of the controller 500 and the top of the controller 500.

The cam portion 485 needs to have an appropriate height at the rear of the controller 500. This is because the height of the cam portion 485 is related to the flow rate of air flowing through the guide duct 250 and the rotation range of the controller 500. More precisely, depending on the height of the cam portion 485, the flow rate of air flowing through the guide duct 250 may be excessively reduced, and the controller 500 may deviate from the first open section.

In Figure 88, (i) the flow rate reduction of air flowing through the guide duct 250 and (ii) the probability that the controller 500 deviates from the first open section are expressed in a graph according to the height of the cam portion 485. . At this time, the horizontal axis is the height from the bottom of the controller 500 to the installation position of the cam portion 485 (H2, see Figure 38) with respect to the overall height of the controller 500 in the first position (H1, see Figure 38). Refer to) relative ratio (H2/H1). And the vertical axis represents the decrease in the flow rate (unit: CMM, Cubic Meter per Minute) of air flowing through the guide duct 250, and when the controller 500 is rotated by the cam unit 485, in the first open section. It represents the probability of leaving the first open section by rotating further without stopping.

As shown in the graph of FIG. 88, it can be seen that as the height relative ratio (H2/H1) increases, that is, as the height of the cam portion 485 increases, the amount of decrease in the flow rate of air flowing through the guide duct 250 decreases. . The lower the opening device 450, including the cam portion 485, is disposed, the greater the amount of interference with the guide duct 250, or the entire guide duct 250 is adjusted to prevent interference with the opening device 450. As the height decreases, the flow rate is bound to decrease. However, it can be seen that as the height relative ratio (H2/H1) increases, the amount of flow rate reduction decreases.

Conversely, it can be seen that as the height relative ratio (H2/H1) increases, that is, as the height of the cam portion 485 increases, the probability that the controller 500 deviates from the first open section increases. As the cam portion 485 is disposed upward, the cam portion 485 moves further away from the rotation center of the controller 500, and accordingly, the torque caused by the cam portion 485 increases. Therefore, when the controller 500 rotates by the cam unit 485, it does not stop in the first open section but rotates further, increasing the probability of leaving the first open section.

Considering both the flow rate reduction and the first open section departure rate, the height relative ratio (H2/H1) is preferably 40% to 70%. In this section, the flow rate reduction by the opening device 480 is reduced, and the departure rate of the first opening section of the controller 500 can also be maintained low.

Meanwhile, the relative ratio between the protruding distance of the cam portion 485 and the rotation distance of the controller 500 also needs to be appropriately adjusted. The relative ratio between the distance at which the cam portion 485 protrudes and the rotation distance of the controller 500 may be related to the opening force required to open the controller 500 and the rotation angle of the controller 500.

Here, the distance at which the cam portion 485 protrudes represents the distance at which the cam portion 485 protrudes from the open housing 481. Referring to FIG. 38, the distance L1 from the rotation axis of the cam portion 485 to one end of the cam portion 485 can be viewed as the protruding distance.

And, the rotation distance of the controller 500 represents the rotation distance of the top of the controller 500 when the top of the controller 500 rotates in an arc shape. Referring to FIG. 47, when the controller 500 rotates by angle A1, the rotation distance (Z1) of the top of the controller 500 can be calculated as follows.

Z1=2π*H1*A1

At this time, H1 represents the overall height of the controller 500 (see Figure 38), and A1 represents the rotation angle of the controller 500.

Referring to Figure 89, according to the relative ratio (Z1/L1) between the rotation distance (Z1) of the top of the controller 500 and the maximum protruding distance (L1) of the cam portion 485 of the opening device 480, the opening device 480 Changes in the opening force of 480 and the rotation angle of the controller 500 are expressed in a graph.

As can be seen, as the relative ratio (Z1/L1) increases, the opening force by which the opening device 480 pushes and rotates the controller 500 gradually decreases. This is because when the maximum protruding distance L1 of the cam portion 485 decreases, the torque generated by the cam portion 485 relatively decreases and the rotational force that rotates the controller 500 decreases.

Conversely, as the relative ratio (Z1/L1) increases, the rotation angle of the controller 500 increases. This may mean that in order for the rotation distance (Z1) of the top of the controller 500 to increase and the maximum protrusion distance (L1) of the cam portion 485 to decrease, the cam portion 485 must be placed relatively low. In this case, the angle at which the cam portion 485 rotates the controller 500 can become larger.

The opening force to rotate the controller 500 must be greater than a certain value, and the rotation angle of the controller 500 must be less than a certain angle. This is because if the opening force is too small, the controller 500 does not rotate, and if the rotation angle is too large, the controller 500 exceeds the first opening section.

Looking at Figure 89, it can be seen that the ratio (Z1/L1) between the rotational distance (Z1) of the top of the controller and the maximum protruding distance (L1) of the cam portion of the opening device is preferably 0.9 to 1.2. Most preferably, the relative ratio (Z1/L1) may be 1.0.

Meanwhile, as another example, the opening device 480 may move linearly rather than rotationally. A part of the opening device 480 can open the controller 500 while making a linear reciprocating motion. As another example, the opening device 480 may be composed of an electromagnet that generates a repulsive force to push the controller 500.

The opening device 480 may be equipped with an opening sensor 490. The open sensor 490 can detect the rotational state of the cam portion 485. That is, the opening sensor 490 can detect that the cam portion 485 has rotated one rotation and returned to its original position. When the opening sensor 490 detects that the cam unit 485 has made one complete rotation, the main control unit 700 can stop the operation of the opening motor 484. The open sensor 490 is disposed on one side of the open housing 481 and can be pressed by the cam portion 485.

Figure 33 shows the controller 500 being opened by the opening device 480. Looking at Figure 33(a), the cam portion 485 rotates counterclockwise and protrudes forward. Accordingly, the cam portion 485 can press the rear 551 of the controller 500 to open the controller 500 by a predetermined angle.

If the cam portion 485 rotates further in this state, the cam portion 485 may protrude to the maximum as shown in FIG. 33(b). Figure 33(b) can be seen in a state in which the controller 500 has moved through the first open section starting from the first fully closed position.

Additionally, the controller 500 may be moved in the second open section extending from the end of the first open section to the second location by gravity or an external force exerted by the user. Referring to FIG. 33(c), the controller 500 is completely opened by gravity or an external force exerted by the user, and the cam portion 485 is inserted into the open housing 481 after completing one rotation.

In this way, when the cam unit 485 returns to the fully stored position stored inside the open housing 481, the open sensor 490 can detect a return signal by pressing the cam unit 485. And the main control unit 700 can stop the operation of the opening motor 484 so that the cam unit 485 remains in the fully stored position.

This series of opening operations of the controller 500 will be described again below.

The controller 500 will be described with reference to FIGS. 34 to 40. The controller 500 may form part of the front exterior of the cooking appliance. The controller 500 may be provided with a display unit 501 (see FIG. 1). The display unit 501 may include an input means for controlling the operation of the cooking appliance and an output means for displaying the operating status of the cooking appliance. For example, the controller 500 may include both an input means and an output means, or the display unit 501 may be configured as a touch panel that receives a user's touch input, so that the input means may also be integrated into the display unit 501. It may be possible. For reference, the display unit 501 may be part of the first manipulation unit M1, which will be described below.

At this time, when the display unit 501 and the touch sensor that detects the touch operation form a layered structure to form a touch screen, the display unit 501 can be used as an input device in addition to an output device. The touch sensor may take the form of, for example, a touch film, a touch sheet, or a touch pad.

The display unit 501 may display a lighting button 535 (see FIG. 1) for setting a function to manually turn on/off the lighting module 900, which will be described below. Additionally, when the cooking appliance is an oven, the display unit 501 may display a self-cleaning button (not shown) for setting the self-cleaning function of the cavity S1.

The controller 500 may be placed in front of the front panel 420. And when the controller 500 moves, the controller 500 may be placed below the front panel 420. For reference, Figure 2 shows the controller 500 covering the front panel 420 in front of the front panel 420, and Figure 4 shows the front panel 420 moving so that the front panel ( 420) and the tank inlet 424 are shown in an open state.

That is, Figure 2 shows the controller 500 in a closed state, and Figure 4 shows the controller 500 in an open state. And when the controller 500 is opened, the water tank 450 can be withdrawn or re-introduced. Referring to Figure 5, the water tank 450 is shown taken out.

When the controller 500 is opened, it can serve as a kind of support when the water tank 450 is withdrawn or retracted. When the controller 500 is opened, the water tank 450 can be moved along the upper surface of the controller 500. Here, the top surface of the controller 500 is based on the open state of the controller 500.

If the fully closed state of the controller 500 is referred to as the first position, the fully open state may be referred to as the second position. The controller 500 may move from the first position to the second position, or conversely, may move from the second position to the first position.

And the section in which the controller 500 moves from the first position to the second position can be further divided into a first open section and a second open section. Here, the first open section refers to the section in which the controller 500 moves by the opening device 480, and the second open section refers to the section extending from that point to the second position.

As described above, the controller 500 can move the first opening section starting from the first position by the opening device 480 (see 500B in Figure 47). And, the controller 500 In the second open section extending from the end of the first open section to the second location, it can be moved by gravity or an external force exerted by the user (see 500D in FIG. 47).

More specifically, when the controller 500 moves through the first open section, the controller 500 becomes open by a predetermined angle. Accordingly, torque due to gravity is generated in the controller 500 centered on the hinge module 600. Torque due to gravity can cause the controller 500 to automatically rotate the second open section.

As another example, if the tension or friction caused by the hinge module 600 is greater than the torque due to gravity, the controller 500 may stop at the end of the first open section. In this state, if the user further rotates the controller 500 downward, the controller 500 can move to the second position.

Referring to FIG. 34, the controller 500 may have a substantially hexahedral shape extending long in the left and right directions. The controller 500 may have a predetermined thickness, and a space may be formed inside the controller 500 in which various components, which will be described below, are mounted.

When the controller 500 is in the first position, the front of the controller 500 may be exposed toward the user, that is, toward the front. And the rear 551 of the controller 500 may face the control panel 530.

Figure 35 shows the rear 551 of the controller 500. A pair of hinge modules 600 may be connected to both ends of the controller 500, respectively. Reference numeral 555 denotes a hinge assembly into which the hinge module 600 is inserted, and the coupling structure with the hinge module 600 will be described again below.

36 and 37, the controller 500 may be composed of a plurality of components. Centering on the main housing 510, which constitutes the center of the controller 500, a control panel 530 may be placed in the front, and a cover frame 550 may be placed in the rear. In this embodiment, the control panel 530 extends longer left and right than the cover frame 550.

The control panel 530 covers the front of the main housing 510 and exposes at least a portion of the first manipulation part (M1), the second manipulation part (M2), or the third manipulation part (M3) to the front, which will be described below. You can. Additionally, an empty space in which components are mounted may be formed between the main housing 510 and the cover frame 550.

First, looking at the main housing 510, the main housing 510 may have an approximately square plate shape. The main housing 510 may be disposed between the control panel 530 and the cover frame 550. When viewed from the front, most of the surface of the main housing 510 may be covered by the control panel 530.

Components including the first to third manipulation units (M1-M3) may be placed in the main housing 510. Additionally, the main housing 510 may be provided with a hinge coupling portion 520 to which the hinge module 600 is coupled. The structure of the hinge coupling portion 520 will be described in detail below.

Referring to Figure 37, a housing fence 511 may be provided at the edge of the main housing 510. The housing fence 511 may be arranged around the center of the main housing 510. The housing fence 511 may protrude toward the rear. In this embodiment, the housing fence 511 is disposed at the upper and lower parts of the main housing 510, respectively.

At this time, the housing fence 511 provided at the bottom of the main housing 510 is closer to the main housing 510 and the cover frame 550 than the housing fence 511 provided at the top of the main housing 510. ) can be formed longer along the bonding direction.

The housing fence 511 may be provided with a first fastening jaw 511a. The first fastening jaw 511a may protrude from the housing fence 511 toward the center of the main housing 510. The second fastening jaw 552a of the cover frame 550, which will be described below, may be caught on the first fastening jaw 511a.

The housing fence 511 may be provided with a sealing member 511b. The sealing member 511b may be disposed at the top of the housing fence 511. The sealing member 511b can prevent water from penetrating into the interior of the controller 500. The sealing member 511b is disposed along the top of the housing fence 511 to seal between the main housing 510 and the cover frame 550. The waterproof function of the sealing member 511b will be described again below.

A component mounting portion 512 may be provided on the rear of the main housing 510. The component mounting portion 512 may be formed at the rear center of the main housing 510 surrounded by the housing fence 511 and a pair of hinge coupling portions 520 to be described later. The first to third manipulation units (M1-M3), a communication module (M4), etc. may be placed in the component mounting unit 512.

At this time, the component mounting portion 512 connects a pair of housing fences 511 disposed at the top and bottom of the controller 500, respectively, and moves them in the left and right directions. It may be viewed as defined by a pair of spaced apart ceiling fences 518. In other words, the component mounting portion 512 can be viewed as a space surrounded by the pair of housing fences 511 and the pair of sealing fences 518.

The component mounting portion 512 may be provided with a cover assembly portion 513. The cover assembly part 513 may be placed near the edge of the component mounting part 512. The cover assembly part 513 is for assembly between the main housing 510 and the cover frame 550. The cover assembly portion 513 may have a hook structure that protrudes in the direction of the cover frame 550. A relative assembly portion (not shown) of the cover frame 550 may be caught on the cover assembly portion 513.

A first manipulation unit (M1) may be placed in the main housing 510. The first manipulation unit (M1) can function to receive user input and simultaneously output information to the user. To this end, the first manipulation unit M1 may include a circuit board and a touch screen connected to the circuit board.

At this time, the circuit board of the first manipulation unit (M1) may be arranged to face the cover frame 550. And the touch screen may be arranged toward the control panel 530. The touch screen may be configured as a capacitive touch screen. In this case, the user can touch the control panel 530 to input a signal to the touch screen in a capacitive manner. The touch screen can also be viewed as the display unit 501 described above.

The component mounting portion 512 of the main housing 510 may be provided with a first mounting guide 514 for fixing the first manipulation portion M1. The first mounting guide 514 may have a substantially square frame structure surrounding the first manipulation unit (M1). The first mounting guide 514 may be integrally formed with the component mounting portion 512, or may be separate from the component mounting portion 512. That is, after the first manipulation unit (M1) is first fixed to the first mounting guide 514, the first mounting guide 514 may be mounted on the component mounting portion 512. Reference numeral 514a denotes a first fixing hook for fixing the first mounting guide 514 to the component mounting portion 512.

A second manipulation unit (M2) may be disposed in the main housing 510. Like the first manipulation unit (M1), the second manipulation unit (M2) can function to receive input from the user and output information to the user. Alternatively, the second manipulation unit (M2) may only perform the function of inputting a feature function. For example, the user can activate functions such as steam cooking or steam cleaning through the second control unit (M2).

The component mounting portion 512 of the main housing 510 may be provided with a second mounting guide 515 for fixing the second manipulation portion M2. The second mounting guide 515 may have a substantially square frame structure surrounding the second manipulation unit (M2). The second mounting guide 515 may be integrally formed with the component mounting portion 512, or may be separate from the component mounting portion 512. That is, after the second manipulation unit (M2) is first fixed to the second mounting guide 515, the second mounting guide 515 may be mounted on the component mounting portion 512. Reference numeral 515a denotes a second fixing hook for fixing the second mounting guide 515 to the component mounting portion 512.

A third manipulation unit (M3) may be placed in the main housing 510. Like the first manipulation unit (M1) and the second manipulation unit (M2), the third manipulation unit (M3) can function to receive input from the user and output information to the user. Alternatively, the third manipulation unit (M3) may perform a function of receiving only feature input signals. For example, the user can turn the power of the cooking appliance on or off through the third control unit (M3).

The component mounting portion 512 of the main housing 510 may be provided with a third mounting guide 516 for fixing the third manipulation portion M3. The third mounting guide 516 may have a substantially rectangular frame structure surrounding the third manipulation unit M3. The third mounting guide 516 may be integrally formed with the component mounting portion 512, or may be separate from the component mounting portion 512. That is, after the third manipulation unit (M3) is first fixed to the third mounting guide 516, the third mounting guide 516 may be mounted on the component mounting portion 512. Reference numeral 516a denotes a third fixing hook for fixing the third mounting guide 516 to the component mounting portion 512.

As another example, the first manipulation unit (M1), the second manipulation unit (M2), and the third manipulation unit (M3) may be integrated into one control unit. For example, the functions of the second manipulation unit (M2) and the third manipulation unit (M3) may all be included in the first manipulation unit (M1).

A communication module (M4) may be placed in the component mounting portion 512 of the main housing 510. The communication module (M4) can wirelessly connect the cooking appliance to the outside. For example, the communication module (M4) can implement various communication technologies for IoT such as WLAN, WiFi, Bluetooth, ZigBee, Zwave, and 5G. Through the communication module (M4), the user can control the cooking appliance from outside. Additionally, through the communication module (M4), the cooking appliance can receive external information to update the cooking function or communicate problems with the cooking appliance to the outside.

The component mounting portion 512 of the main housing 510 may be provided with a fourth mounting guide 517 for fixing the communication module (M4). The fourth mounting guide 517 may have a substantially square frame structure surrounding the communication module (M4). The fourth mounting guide 517 may be formed integrally with the component mounting portion 512, or may be separate from the component mounting portion 512. That is, after the communication module (M4) is first fixed to the fourth mounting guide 517, the fourth mounting guide 517 may be mounted on the component mounting portion 512. Reference numeral 517a denotes a fourth fixing hook for fixing the fourth mounting guide 517 to the component mounting portion 512.

The first to third manipulation units (M1-M3) and the communication module (M4) may be connected to the main control unit 700 through a wire harness (W). The wire harness (W) may be connected to the inside of the electrical equipment room (S2) along the hinge module 600, which will be described below. More precisely, the wire harness (W) may extend along one of the pair of hinge modules (600) and be connected to the main control unit (700) disposed in the electrical equipment room (S2). At this time, the wire harness (W) may be covered by the wire cover 670, and the structure of the wire cover 670 will be described again below.

The main housing 510 may be provided with a hinge coupling portion 520. The hinge coupling portion 520 is for coupling between the controller 500 and the hinge module 600. The hinge coupling portion 520 may be provided on both left and right sides of the component mounting portion 512, respectively. The hinge coupling portion 520 may be integrally provided with the main housing 510. The structure of the hinge coupling portion 520 will be described together with the hinge module 600 below.

A control panel 530 may be coupled to the main housing 510. The control panel 530 may be coupled to the main housing 510 to form the front of the controller 500. At this time, the front of the controller 500 is based on when the controller 500 is in the first position. When the controller 500 is in the second position, the control panel 530 may face downward and form the lower surface of the controller 500.

The control panel 530 may be a part that the user touches when the user inputs a signal through the first to third manipulation units (M1-M3). Additionally, the control panel 530 may function to project the output information forward when the first to third manipulation units (M1-M3) output information about the cooking appliance.

To this end, the control panel 530 may be made of tempered glass for a touch screen or polymethylethacrylate (PMMA) material. As another example, the control panel 530 may be integrated with the main housing 510, may be a thin film, or may be omitted.

A cover frame 550 may be provided at the rear of the main housing 510, which is opposite to the control panel 530. The cover frame 550 may be assembled to the main housing 510 to form the rear 551 of the controller 500. The cover frame 550 can be assembled to the main housing 510 to shield the component mounting portion 512.

The cover frame 550 may be shorter in left and right length than the main housing 510 and the control panel 530. In this way, the cover frame 550 disposed at the rear of the control panel 530 exposed toward the user can be relatively less exposed, and the aesthetics of the controller 500 can be improved.

A cover fence 552 may be provided at the edge of the cover frame 550. The cover fence 552 may protrude from the front edge of the cover frame 550 toward the front, that is, toward the control panel 530. The cover fence 552 overlaps the housing fence 511 of the main housing 510 to prevent external dust or moisture from entering the controller 500.

The cover fence 552 may be provided along the top and bottom of the cover frame 550. More precisely, the cover fence 552 may extend in the left and right directions from the top and bottom of the cover frame 550.

At this time, the cover fence 552 provided at the bottom of the cover frame 550 is closer to the main housing 510 and the cover frame 550 than the cover fence 552 provided at the top of the cover frame 550. ) can be formed longer along the bonding direction.

Accordingly, the area where the housing fence 511 and the cover fence 552 overlap each other at the bottom of the controller 500 is the area between the housing fence 511 and the cover fence 552 at the top of the controller 500. ) can be formed wider than the overlapping area. In this way, when the controller 500 is in the second position, the sealed area of the controller 500 can be increased at the rear (based on FIG. 5) of the controller 500, which has more contact with the water tank 450. You can.

When the cover fence 552 overlaps the housing fence 511 of the main housing 510, the cover fence 552 and the housing fence 511 may be in surface contact with each other. Looking at FIG. 38, it can be seen that the cover fence 552 is laminated with the housing fence 511 in an up-and-down direction and is in surface contact.

At this time, the housing fence 511 and the cover fence 552 may be arranged to face each other along two sides. Figure 38 shows one end of the housing fence 511 facing the stopper rib 552' provided on the cover fence 552. In FIG. 38, one end of the housing fence 511 is expressed as spaced apart from the stopper rib 552' provided on the cover fence 552, but one end of the housing fence 511 has a stopper rib 552'. It may be in close contact with . In addition, although not shown in FIG. 38, a sealing member 511b is disposed between one end of the housing fence 511 and the stopper rib 552', and one end of the housing fence 511 and the stopper rib (552'). 552') can also be compressed.

The cover fence 552 may be provided continuously surrounding the edge of the cover frame 550, or may be provided intermittently. The cover fence 552 may be thin and have a plate-shaped structure that is long in one direction. Referring to FIG. 36, the cover fence 552 may be provided parallel to the top and bottom of the cover frame 550. Reference numeral 552a denotes a second fastening jaw 552a that is fixed to the first fastening jaw 511a of the main housing 510.

Referring to FIG. 38, the cover fence 552 may be stacked with the housing fence 511 of the main housing 510. At this time, the housing fence 511 may be placed relatively further outward. In addition, the housing fence 511 and the cover fence 552 have a section in surface contact with each other, thereby effectively preventing the inflow of external foreign substances or moisture.

The cover fence 552 may be provided with a stopper rib 552'. The stopper rib 552' may limit the assembly depth when the cover frame 550 and the main housing 510 are assembled. To this end, the stopper rib 552' may protrude further outward from the surface of the cover fence 552. Additionally, the stopper rib 552' may serve to cover the assembly portion between the main housing 510 and the cover frame 550.

At this time, the height at which the stopper rib 552' protrudes from the surface of the cover fence 552 may be equal to or smaller than the thickness of the housing fence 511. In this case, the stopper rib 552' may not protrude further outward than the surface of the housing fence 511.

Referring to FIG. 37, the cover frame 550 may be provided with a cover hinge hole 553. The cover hinge hole 553 may be formed to penetrate the cover frame 550 in the front and rear directions. The cover hinge hole 553 may be connected to the hinge fastening hole 523a (see FIG. 53) of the main housing 510. At this time, as the block fastener B4 is tightened, it can sequentially pass through the cover hinge hole 553, the connecting block 625 constituting the hinge module 600, and the hinge fastening hole 523a. More precisely, the block fastener (B4) connects the cover hinge hole 553, the block assembly hole 625a' of the connecting block 625 (see Figure 54), and the hinge fastening hole 523a. By passing through it, the hinge module 600 and the controller 500 can be assembled. In this embodiment, two cover hinge holes 553 may be arranged at different heights in the cover frame 550.

The hinge assembly 555 may be opened at a position adjacent to the cover hinge hole 553. When the hinge module 600 is assembled to the controller 500, the driving arm 620 of the hinge module 600 can be inserted into the hinge assembly 555. The hinge assembly 555 may be provided on both sides of the cover frame 550, respectively. And the hinge assembly 555 may be formed to extend to the bottom of the cover frame 550.

The cover frame 550 may be provided with a cover fastening hole 556. The cover fastening hole 556 is for assembling the cover frame 550 to the main housing 510 with a cover fastening tool (B2, see FIG. 35). The cover fastening hole 556 may be disposed adjacent to the hinge assembly 555. In another example, the cover fastening hole 556 is omitted, and the main housing 510 and the cover frame 550 are connected to each other only by structures such as the first fastening jaw 511a and the second fastening jaw 552a. It can also be assembled.

At this time, the rear of the cover frame 550 may be the rear 551 of the controller 500. More precisely, when the controller 500 is in the first position, the rear of the cover frame 550 faces the front frame 280 and the front panel 420. Accordingly, when the opening device 480 is operated, the cam portion 485 of the opening device 480 presses the rear surface of the cover frame 550.

Referring to FIG. 38, a cover inclined portion 559 may be formed on the cover frame 550. Based on when the controller 500 is in the first position, the cover inclined portion 559 may be formed to be inclined toward the cover fence 552 provided at the top of the cover frame 550. . The cover slope portion 559 can guide water to flow downward when it pours onto the rear 551 of the cover frame 550 when the controller 500 is in the second position.

In addition, the cover inclined portion 559 can create a gap between the rear 551 of the cover frame 550 and the front of the front panel 420 when the controller 500 is in the first position. there is. The user can insert his/her hand into the gap between the cover slope 559 and the front panel 420. Additionally, the user can hold the upper part of the controller 500 and move the controller 500 from the first position to the second position or vice versa.

Of course, the controller 500 can be moved by the opening device 480, but when the user manually moves the controller 500, the controller 500 can be held more easily through the cover inclined portion 559. there is. In particular, the cover inclined portion 559 can make the upper part of the controller 500 thin so that the user can easily hold it.

39 and 40, an air guide 590 may be provided at the lower part of the controller 500. The air guide 590 may protrude further downward from the bottom of the controller 500. The air guide 590 may be connected to the bottom of the main housing 510. As another example, the air guide 590 may be connected to the bottom of the cover frame 550.

The air guide 590 is disposed below the controller 500 and can cover the exhaust port 282. The air guide 590 is disposed in front of the exhaust port 282 to obscure the exhaust port 282 from the user's line of sight.

In addition, the air discharged through the exhaust port 282 and the air discharged through the door exhaust port 377 of the door frame 370 can be guided to be smoothly discharged forward without generating vortices. Since the air guide 590 is exposed to high-temperature discharge air, it is preferably made of a highly durable metal material.

The air guide 590 may be connected to the connection leg 519 disposed below the controller 500. The connection leg 519 may extend further downward from the bottom of the main housing 510. The connection leg 519 may be integrally formed with the main housing 510, or may be formed as a separate piece.

The air guide 590 may be coupled to each of the plurality of connection legs 519. The air guide 590 may have a flat structure. In this embodiment, the air guide 590 can be assembled to the connection leg 519 through a fastener. As another example, the air guide 590 may be assembled to the connecting leg 519 with adhesive or may be coupled to the connecting leg 519 through a press-fit structure.

Referring to FIG. 38, the air guide 590 may have a length in the front-back direction that is longer than the height in the vertical direction. Accordingly, the air guide 590 can guide the discharge direction of air discharged forward.

Meanwhile, Figures 41 to 46 show another example of the controller 500 constituting the present invention. For reference, description of the structure of the controller 500, which is the same as the previous embodiment, will be omitted.

A pocket guide 551a may be provided on the rear 551 of the controller 500. The pocket guide 551a may have a structure recessed in the rear 551 of the controller 500. The pocket guide (551a) may be placed in front of the pocket (P). Accordingly, the pocket guide 551a can allow the user to more easily recognize the location of the pocket P.

The pocket guide 551a may be provided on the cover frame 550 of the controller 500. The pocket guide 551a may extend from the middle point of the back of the cover frame 550 to the distal end. Also, the depth of the pocket guide 551a may gradually increase up to the distal end of the cover frame 550. When the user holds the water tank 450 through the pocket (P), the user may first move his hand in the direction of the pocket (P) along the pocket guide (551a).

To aid understanding, FIG. 19 shows a controller 500 equipped with the pocket guide 551a. Since the pocket guide (551a) is disposed in front of the pocket (P), the user can intuitively push his hand into the pocket (P) along the pocket guide (551a). Additionally, when withdrawing the water tank 450, friction between the bottom of the water tank 450 and the surface of the controller 500 may be reduced due to the pocket guide 551a.

Meanwhile, Figures 43 and 44 show a state in which the cover frame 550 has been removed from the controller 500. The component mounting portion 512 may be provided with a sealing fence 518. The sealing fence 518 can be erected on the component mounting portion 512. The sealing fence 518 may be disposed outside the first to third manipulation units (M1-M3) and the communication module (M4) disposed on the component mounting unit 512. The sealing fence 518 can prevent moisture or foreign substances from entering the center of the component mounting portion 512.

The sealing fence 518 may be provided on both sides of the component mounting portion 512, respectively. The pair of sealing fences 518 can prevent moisture or foreign substances from flowing from the outside of the component mounting portion 512 toward the center of the component mounting portion 512.

The sealing fence 518 may be disposed between the component mounting portion 512 and the hinge coupling portion 520. Accordingly, even if moisture or foreign matter flows in through the hinge coupling portion 520, the sealing fence 518 can prevent moisture or foreign matter from flowing into the component mounting portion 512.

In particular, the ceiling fence 518 may be arranged to be spaced apart from the hinge coupling portion 520. Accordingly, a predetermined empty space may be formed between the ceiling fence 518 and the hinge coupling portion 520. These empty spaces can trap incoming moisture or foreign substances.

At this time, the housing fence 511 provided at the bottom of the main housing 510 among the housing fences 511 and the hinge coupling portion 520 may be spaced apart from each other. A drain hole (DH) may be formed in the spaced apart portion like this. Additionally, the sealing fence 518 may be arranged to be spaced apart from one end of the housing fence 511 provided at the bottom of the main housing in the direction of the component mounting portion 512. Accordingly, moisture or foreign matter remaining in the empty space between the sealing fence 518 and the hinge coupling portion 520 can be discharged downward through the drain hole DH.

More precisely, the drain hole DH may be formed between the housing fence 511 provided at the bottom of the main housing 510 and the hinge coupling portion 520. Additionally, the drain hole DH may be opened downward with respect to the controller 500 at the first position. Therefore, moisture and foreign matter can move downward by gravity and be discharged through the drain hole (DH).

At this time, the housing fence 511 provided at the top of the main housing 510 may be connected to the hinge coupling portion 520. Accordingly, the drain hole DH can be formed only at the lower part of the controller 500.

Both ends of the ceiling fence 518 may be connected to the upper housing fence 511 and the lower housing fence 511, respectively. Accordingly, the pair of ceiling fences 518 and the pair of housing fences 511 can form a substantially square frame structure. In addition, the first to third manipulation units (M1-M3) and the communication module (M4) can all be disposed inside the square frame structure formed by the pair of sealing fences 518 and the housing fence 511.

As another example, the ceiling fence 518 may be provided on the cover frame 550 rather than on the main housing 510. The sealing fence 518 may protrude from the cover frame 550 toward the component mounting portion 512 of the main housing 510.

The ceiling fence 518 may be formed to have a lower protruding height than the housing fence 511. If the ceiling fence 518 is lower than the housing fence 511, there may be space between the ceiling fence 518 and the surface of the cover frame 550. Air can flow through these spaced parts. When air flows above the sealing fence 518, the circuit components placed on the component mounting portion 512 can be cooled.

Meanwhile, the hinge coupling portion 520 may protrude higher than the ceiling fence 518. The hinge coupling portion 520 formed so high can itself function as a barrier that primarily prevents moisture and foreign substances from entering. In addition, the ceiling fence 518 itself may function as a type of rib for reinforcing strength.

The ceiling fence 518 may be provided with a wire gate 518a. The wire gate 518a may have a structure in which a portion of the ceiling fence 518 is open. The wire harness (W) may extend outward from the controller 500 through the wire gate 518a. A pair of guide walls extending a predetermined distance toward the outside of the main housing 510 are erected on both sides of the wire gate 518a, and a wire harness (W) can pass between them. The wire gate 518a may be provided on only one of the pair of sealing fences 518.

The wire gate 518a may be arranged to be spaced apart from the top and bottom of the main housing 510, respectively. In this way, moisture and foreign matter moving along the top or bottom of the main housing 510 can be prevented from flowing into the component mounting portion 512 through the wire gate 518a.

45 and 46, a sealing member 511b may be provided at the top of the housing fence 511. The sealing member 511b may be fixed to the top of the housing fence 511. The sealing member 511b can prevent moisture and foreign substances from penetrating into the interior of the controller 500. The sealing member 511b is disposed along the top of the housing fence 511 to seal between the main housing 510 and the cover frame 550. To this end, the sealing member 511b may protrude in the assembly direction (left direction with respect to FIG. 46) of the housing fence 511 and the cover frame 550.

The sealing member 511b may be compressed between the main housing 510 and the cover frame 550 when the main housing 510 and the cover frame 550 are coupled. The housing fence 511 of the main housing 510 faces the stopper rib 552' provided on the cover fence 552 of the cover frame 550 (see FIG. 38), and the housing fence 511 The sealing member 511b disposed between and the stopper rib 552' has a width larger than the gap between the housing fence 511 and the stopper rib 552' and can be compressed by them.

Additionally, the sealing member can reduce the gap between the main housing 510 and the cover frame 550. More precisely, the sealing member is compressed between the housing fence 511 and the stopper rib 552', thereby reducing the gap between the main housing 510 and the cover frame 550. Accordingly, noise caused by clearance between the main housing 510 and the cover frame 550 can be reduced. Additionally, the sealing member can maintain a more firmly fixed state between the main housing 510 and the cover frame 550.

Although not shown, the sealing member 511b may also be provided on the top of the sealing fence 518. Accordingly, all edges of the component mounting portion 512 defined by the sealing fence 518 and the housing fence 511 can be sealed by the sealing member 511b. As another example, the sealing member 511b is provided only at the top of the housing fence 511 and may be omitted from the housing fence 511.

As another example, the sealing member 511b may be disposed on the cover frame 550 rather than on the main housing 510. More precisely, the sealing member 511b may be provided on the cover fence 552 of the cover frame 550.

A hinge module 600 may be connected to the controller 500. The hinge module 600 connects the controller 500 and the cases 100 and 200 to each other, allowing the controller 500 to move between the first and second positions.

Referring to FIG. 47, the controller 500 can move between a first position in a closed state and a second position in an open state. Reference numeral 500A indicates the controller 500 in the first position, and 500D indicates the controller 500 in the second position. And, 500B and 500C represent the controller 500 moving between the first and second positions, respectively.

At this time, the first open section (500A-500B) extends from the first position (500A) to a position moved a predetermined distance, and the second open section (500A-500B) extends from the end (500B) of the first open section to the second location (500D). 500B-500D). The previously described opening device 480 can move the controller 500 by the first opening section. Additionally, the controller 500 may be moved in the second open section extending from the end of the first open section to the second location by gravity or an external force exerted by the user.

In this embodiment, the controller 500 does not rotate around a fixed rotation axis, but can move forward and downward simultaneously with rotation. Based on Figure 47, the controller 500 rotates counterclockwise (arrow ① direction), and at the same time, the controller 500 moves forward (arrow ② direction) and downward, which is the direction of gravity (arrow ③ direction). ) can be moved to .

As another example, the controller 500 may rotate counterclockwise (direction of arrow ①) and simultaneously move downward (direction of arrow ③), which is the direction of gravity. As another example, the controller 500 may only rotate counterclockwise (direction of arrow ①) and may not move forward or downward.

If the controller 500 rotates and moves forward and downward in this way, the total moving distance of the controller 500 may increase. As the moving distance of the controller 500 increases, the tank entrance 424 may be exposed more widely to the user.

More specifically, when the controller 500 moves forward, the upper surface (rear 551 of the cover frame 550) of the controller 500 in the second position moves the water tank 450 out or in. The forward and backward distance that can be guided increases.

And, when the controller 500 moves downward, the height of the upper surface (rear 551 of the cover frame 550) of the controller 500 in the second position is lower than the bottom of the tank inlet 424. Or at least it can be the same height. The controller 500 whose height is lowered may not interfere with the water tank 450 when the water tank 450 is withdrawn or retracted.

In the first position 500A, the lower end of the controller 500 may be placed higher than the upper end of the door 300. At this time, the bottom of the controller 500 may mean the bottom of the main housing 510 or the cover frame 550. In the second position 500D, the lower end of the controller 500 may be placed lower than the upper end of the door 300. At this time, the bottom of the controller 500 may mean the bottom of the control panel 530.

Additionally, in the second position 500D, the controller 500 may be placed further forward from the cases 100 and 200 than the front of the door 300. As shown in FIG. 47, the entire controller 500 may be placed in front of the door 300 (on the left side in the drawing). Accordingly, the distance at which the controller 500 can guide the in/out of the water tank 450 can be made longer.

Meanwhile, the rotation angle of the controller 500 in the second open section may be larger than the rotation angle of the controller 500 in the first open section. For example, the rotation angle of the controller 500 in the first open section may be 20° to 40°, and the rotation angle of the controller 500 in the second open section may be 50° to 70°. It can be formed as °. When the controller 500 rotates as much as the first opening section, a large torque due to gravity may act around the hinge module 600. Therefore, even if the opening device 480 rotates the controller 500 by a relatively small angle in the first opening section, the controller 500 can be automatically opened by gravity in the remaining second opening section.

And, the total rotation angle at which the controller 500 is rotated from the first position to the second position may be 80° to 100°. When the rotation angle of the controller 500 is set to this angle range, the controller 500 can act as a kind of pedestal when the water tank 450 is withdrawn or retracted.

If the total rotation angle at which the controller 500 is rotated to the second position is 90°, the upper surface of the controller 500 is parallel to the depth direction of the tank chamber in which the water tank 450 is accommodated. Accordingly, the water tank 450 can be introduced into the tank chamber or taken out from the tank chamber using the upper surface of the controller 500 as a support.

When the rotation angle of the controller 500 is 80° to 89°, the controller 500 is lifted upward by a predetermined angle, and the upper surface of the controller 500 (cover based on 500D in Figure 47) The rear 551 of the frame 550 is inclined downward in the direction of the cases 100 and 200 (to the right in the drawing). Therefore, when the water tank 450 is introduced into the tank chamber, the upper surface of the controller 500 can serve as a guide so that the water tank 450 can be more easily introduced.

In addition, when the rotation angle of the controller 500 is 91° to 100°, the controller 500 is sagged downward by a predetermined angle, and the upper surface of the controller 500 (based on 500D in FIG. 47) As a result, the rear 551 of the cover frame 550 is inclined downward toward the outside (left side in the drawing) of the cases 100 and 200. Therefore, when the water tank 450 is pulled out of the tank chamber, the upper surface of the controller 500 can serve as a guide so that the water tank 450 can be pulled out while sliding more easily.

In Figure 48, the hinge module 600 is sequentially shown in operation. For reference, in Figure 48, the controller 500 is omitted and only the hinge module 600 is shown. The driving arm 620 and the connection block 625 may protrude from the hinge housing 610 of the hinge module 600. The connection block 625 is coupled to the controller 500 and can control the movement of the controller 500.

FIG. 48(a) shows the hinge module 600 when the controller 500 is located at the end 500B of the first open section in FIG. 47. And, Figure 48(b) shows the hinge module 600 in a state in which the controller 500 is moving from the end 500B of the first open section to the second position (500C), and Figure 48(c) shows the hinge module 600 when the controller 500 is in the second position 500D.

Looking at FIG. 48, it can be seen that the connection block 625 rotates counterclockwise and moves forward and downward at the same time. This operation of the connection block 625 can be implemented through a connection structure between a plurality of links included in the hinge module 600 and the driving arm 620. The connection structure will be described again below.

49 and 50 show the hinge module 600 and the controller 500 assembled together. A pair of hinge modules 600 may be connected to both sides of the controller 500, respectively. A pair of the hinge modules 600 may have the same operating mechanism. The pair of hinge modules 600 may have the same structure or may have a symmetrical structure.

The hinge module 600 can be inserted into the controller 500 through the hinge assembly 555 formed in the cover frame 550 of the controller 500. The hinge housing 610 of the hinge module 600 is maintained in a fixed state in the electrical equipment compartment S2, and only the driving arm 620 protrudes forward and can be connected to the controller 500. Although omitted in FIGS. 49 and 50, the front frame 280 and the front panel 420 may be disposed between the hinge module 600 and the controller 500.

Figure 51 shows the controller 500 in the first position as a cross-sectional view. As can be seen, the driving arm 620 of the hinge module 600 may protrude in front of the front frame 280 and the front panel 420. The connection block 625, which is rotatably connected to the driving arm 620, stands vertically together with the controller 500.

At this time, the hinge module 600 can be assembled to the front panel 420 and the front frame 280 using a hinge fastener (B3). The hinge fastener (B3) passes through the second hinge assembly hole 427 of the front panel 420 and the first hinge assembly hole 288 of the front frame 280, respectively, and then passes through the front frame 280. ) can be tightened to the hinge module 600 located at the rear of the. Accordingly, the hinge module 600 can be firmly fixed to the front frame 280, and in this process, the front panel 420 can also be fixed to the front frame 280. For reference, the hinge fastener (B3) can be fastened to the second hinge assembly hole 427 and the first hinge assembly hole 288 when the controller 500 is in an open state, that is, in the second position. there is.

And, as shown in Figure 52, the connection block 625 of the hinge module 600 can be coupled to the controller 500 using a block fastener (B4). The block fastener (B4) can pass through the connection block 625 and be assembled to the hinge coupling portion 520 provided in the main housing 510. In this embodiment, a total of two block fasteners (B4) can be fastened to each other at different positions. At this time, the connection block 625 is connected to the controller 500 not only by the block fastener B4 but also by a hinge hanging structure (block locking portion 528 and locking piece 628 structure, see FIG. 55) to be described below. ) can also be fixed.

Figures 53 to 56 show the structure of the hinge coupling portion 520 for fixing the hinge module 600 to the controller 500. The hinge coupling portion 520 may be provided in the main housing 510 of the controller 500. The hinge coupling portion 520 may be disposed on both sides of the main housing 510. Since the hinge coupling portion 520 is covered by the cover frame 550, most of the hinge coupling portion 520 may not be exposed to the outside after the controller 500 is assembled.

Referring to Figure 53, the main housing 510 may be provided with a hinge coupling portion 520. The hinge coupling portion 520 may be disposed close to the edge of the main housing 510. The hinge coupling portion 520 may be provided on the rear of the main housing 510 along the vertical direction, that is, the height direction, when the controller 500 is in the first position.

Looking at the structure of the hinge coupling portion 520, the hinge coupling portion 520 may include a first hinge coupling portion 521 and a second hinge coupling portion 525. Both the first hinge coupling portion 521 and the second hinge coupling portion 525 may serve as coupling portions where the hinge module 600 and the controller 500 are coupled. When the controller 500 is in an open state, i.e., in the second position, the first hinge coupling portion 521 is located farther from the hinge housing 610 than the second hinge coupling portion 525. can be placed in

In other words, the first hinge coupling portion 521 and the second hinge coupling portion 525 may be arranged to be spaced apart from each other in a direction perpendicular to the rotation axis of the controller 500. Here, the rotation axis of the controller 500 extends in the left and right directions of the cooking appliance. In this embodiment, the rotation axis is not fixed at a specific position, but moves forward and downward during the movement of the controller 500.

Looking at the first hinge coupling portion 521, the first hinge coupling portion 521 may have a structure that protrudes rearward from the main housing 510. And the first hinge coupling portion 521 may surround the seating boss 523. The connection block 625 of the hinge module 600 may be fixed to the seating boss 523 with a block fastener (B4).

The seating boss 523 may protrude from the inside of the first fastening space 522 formed inside the first hinge coupling portion 521. A hinge fastening hole 523a may be formed in the seating boss 523, and the block fastening tool B4 may be fastened to the hinge fastening hole 523a. The block fastener (B4) is composed of a screw, and a portion of its end can be fastened to the hinge fastening hole (523a). For reference, Figure 54 shows a state in which one block fastener (B4) is assembled with the connection block 625 seated on the first hinge coupling portion 521.

The seating boss 523 and the hinge fastening hole 523a may be composed of a plurality of pieces. In this embodiment, the seating boss 523 and the hinge fastening hole 523a, like the hinge coupling portion 520, may be arranged to be spaced apart from each other in a direction perpendicular to the rotation axis of the controller 500. Accordingly, the connection block 625 of the hinge module 600 can be fixed to at least two parts inside the first hinge coupling portion 521.

The second hinge coupling portion 525 may be provided at the rear of the main housing 510. The second hinge coupling portion 525 may be disposed continuously with the first hinge coupling portion 521. The connection block 625 of the driving arm 620 may be coupled to the first hinge coupling portion 521 and the second hinge coupling portion 525, respectively.

A portion of the connection block 625 may be fixed to the second hinge coupling portion 525. Unlike the first hinge coupling part 521, the second hinge coupling part 525 may have a fixed structure without a separate fastener. Therefore, before the block fastener (B4) is assembled to the first hinge coupler 521, the second hinge coupler 525 is temporarily fixed to the connection block 625 by the hinge coupler 520. It can be done as much as possible.

For reference, in this embodiment, after the main housing 510, control panel 530, and cover frame 550, which constitute the controller 500, are assembled together, the hinge module 600 is installed in the controller 500. ) is assembled. Even if the cover frame 550 covers the rear of the main housing 510, the connection block 625 of the hinge module 600 is connected through the hinge assembly 555 formed on the cover frame 550. It can be inserted into the interior of the controller 500.

Looking at the structure of the second hinge coupling portion 525, a second fastening space 526 may be formed in the second hinge coupling portion 525. The lower end of the second fastening space 526 may be open. The connection block 625 can be inserted upward from the bottom of the open second fastening space 526. The upper end of the second fastening space 526 may be connected to the first fastening space 522.

Assembly guides 527 may be provided on both sides of the second fastening space 526. The assembly guide 527 can be viewed as a type of wall structure built on both sides of the second fastening space 526. The connection block 625 can be inserted between the assembly guides 527. The lower end of the assembly guide 527 may extend to the lower end of the main housing 510, and the upper end of the assembly guide 527 may be connected to a block locking portion 528, which will be described below.

The assembly guide 527 may be formed to be taller at the bottom of the second fastening space 526 than at the top. The connection block 625 is inserted from below the assembly guide 527, and the high lower end of the assembly guide 527 may form an entrance into which the connection block 625 is inserted. At the same time, the assembly guide 527 may gradually become wider toward the lower entrance where the connection block 625 is inserted.

In addition, the connection block 625 has a portion for connection with the connection link 624, which will be described below, disposed at the bottom, so that the height of the bottom of the connection block 625 is high. Here, the height may mean the left and right width of the connection block 625 based on Figure 55. Therefore, it is preferable that the assembly guide 527 is formed to be taller at the bottom.

A block locking portion 528 may be provided on the second hinge coupling portion 525. The block locking part 528 is a part where the connecting block 625 is fixed. The block locking portion 528 may be spaced apart from the bottom surface of the second fastening space 526 and may have a structure that covers the upper part of the second fastening space 526. Accordingly, the block locking portion 528 may form a locking pocket 528a between the block locking portion 528 and the bottom surface of the second fastening space 526.

As shown in FIG. 55, the locking piece 628 of the connecting block 625 can be fixed to the block locking portion 528. When the locking piece 628 is inserted into the locking pocket 528a of the block locking portion 528, the controller 500 can be maintained in a state hooked on the connection block 625. For example, based on FIG. 55 , the controller 500 may not be shaken clockwise or counterclockwise and may be maintained in a state hanging on the connection block 625.

Referring to Figure 53, a slit portion 528b may be formed in the block locking portion 528 in the vertical direction. The slit portion 528b is formed along the center of the block locking portion 528 and may have a structure that opens a portion of the locking pocket 528a. The slit portion 528b is intended to prevent interference with a portion of the locking piece 628 provided on the connection block 625. The locking piece 628 may have an approximately T-shaped cross-section, and the slit portion 528b may be formed to match this cross-sectional shape. Referring to Figure 64, it can be seen that the locking piece 628 is connected to the main body of the connecting block 625 by a connecting bridge 628'. The connecting bridge 628' and the locking piece 628 may form an approximately T-shape.

Figure 56 shows the structure of the hinge coupling portion 520 in a cross-sectional view with the connection block 625 removed. As can be seen, the seating boss 523 and the hinge fastening hole 523a are formed on the upper part of the hinge coupling portion 520, so that the block fastener B4 can be assembled. In addition, the block locking portion 528 and the locking pocket 528a may be provided at the lower part of the hinge coupling portion 520. In this way, the plurality of assembly structures arranged to be spaced apart from each other along the assembly direction of the connection block 625 can firmly assemble the connection block 625 and the hinge coupling portion 520 with each other.

Figure 57 shows a state in which the controller 500 and the hinge module 600 are coupled to each other. As can be seen, after the parts constituting the controller 500 are first assembled, the driving arm 620 of the hinge module 600 may be assembled to the controller 500. The connection block 625 provided on the driving arm 620 can be inserted into the hinge coupling portion 520 of the controller 500 through the hinge assembly 555 opened in the cover frame 550. . Afterwards, the connection block 625 can be fixed to the controller 500 with a block fastener (B4). Figure 57 shows the block fastener (B4) being tightened.

Referring to FIG. 58, the cover frame 550 of the controller 500 in FIG. 57 is shown in a removed state. As can be seen, a pair of block fasteners (B4) can pass through the connection block 625 and be assembled to the first hinge coupling portion 521. And, the lower part of the connection block 625 can be caught by the second hinge coupling portion 525.

The hinge coupling portion 520 includes the first hinge coupling portion 521 and the second hinge coupling portion 525, and the first hinge coupling portion 521 and the second hinge coupling portion 525 May extend from the top to the bottom of the main housing 510 along the height direction of the controller 500. Therefore, the controller 500 and the hinge module 600 can be firmly fixed to each other.

In particular, the first hinge coupling portion 521 and the second hinge coupling portion 525 are arranged along the vertical direction orthogonal to the left and right direction (Y-axis direction in FIG. 1), which is the direction of the rotation axis of the controller 500. You can. Therefore, during the movement of the controller 500, the load applied to the connection portion with the hinge module 600 can be distributed over a wide range of the controller 500, and the controller 500 and the hinge module 600 durability can be increased. Here, the up and down direction is based on when the controller 500 is in the first position, and is the Z-axis direction in FIG. 1. If the controller 500 is in the second position, the vertical direction is the X-axis direction in FIG. 1.

Figure 59 shows a state in which the block fastener (B4) in Figure 58 has been removed. Even if the block fastener B4 is removed in this way, the controller 500 can remain coupled to the hinge module 600. This is because the locking piece 628 of the connection block 625 is caught by the block locking portion 528 of the second hinge coupling portion 525 described above. Therefore, the operator can first fasten the block fastener (B4) while hanging the controller 500 on the locking piece 628.

Next, describing the hinge module 600, the hinge module 600 can guide the movement of the controller 500. The controller 500 may be connected to the cases 100 and 200 through the hinge module 600. That is, the hinge module 600 connects the controller 500 and the cases 100 and 200, and allows the controller 500 to move relative to the cases 100 and 200.

The hinge module 600 may be connected to both sides of the controller 500, respectively. Two hinge modules 600 are symmetrically arranged on both sides of the controller 500 to guide the movement of the controller 500. As another example, the hinge module 600 may be connected to only one of both ends of the controller 500.

Referring to FIG. 48, the skeleton of the hinge module 600 may be formed by a hinge housing 610. The hinge housing 610 may have a substantially hexahedral structure. The hinge housing 610 may be placed in the electrical equipment room (S2). In this embodiment, the hinge housing 610 may be disposed inside the side cover 270 in the electrical equipment room S2.

The hinge housing 610 can remain fixed in the electrical equipment compartment (S2). To this end, the hinge housing 610 may be fixed to the cases 100 and 200. More precisely, the hinge housing 610 may be fixed to at least one of the side cover 270 or the front frame 280 that constitutes the cases 100 and 200. In this embodiment, the hinge housing 610 is simultaneously fixed to the front frame 280 and the front panel 420 disposed at the front.

Referring to Figure 62, a housing assembly hole 613 may be formed in the hinge housing 610. The housing assembly hole 613 may be formed on the front of the hinge housing 610. The housing assembly hole 613 is for fixing the hinge housing 610 to the cases 100 and 200. The hinge fastener (B3) passes through the second hinge assembly hole 427 of the front panel 420 and the first hinge assembly hole 288 of the front frame 280, respectively, and then passes through the housing assembly hole 613. ) can be concluded. In this way, the hinge module 600 can be simultaneously fixed to the front frame 280 and the front panel 420. The housing assembly hole 613 may be formed at the top and bottom of the hinge housing 610, respectively.

Looking again at FIG. 48, the hinge housing 610 may be provided with a driving arm 620. A portion of the driving arm 620 may be moved into and out of the hinge housing 610 . One end of the driving arm 620 may be connected to the inside of the hinge housing 610, and the other end of the driving arm 620 may be connected to the connection block 625. The connection block 625 may be coupled to the controller 500, but in another example, the connection block 625 may be omitted and the driving arm 620 may be directly coupled to the controller 500.

The driving arm 620 may be moved to the front of the hinge housing 610. Additionally, the driving arm 620 may be moved downward of the hinge housing 610. 48(b) and 48(c), the driving arm 620 gradually moves forward (to the left in the drawing) and downward (to the left in the drawing) of the hinge housing 610. You can see it moving. When the driving arm 620 is moved forward and downward in this way, the total moving distance of the controller 500 may increase. As the moving distance of the controller 500 increases, the tank entrance 424 may be exposed more widely to the user.

The driving arm 620 may include a first driving arm 621 and a second driving arm 623. The first driving arm 621 and the second driving arm 623 may be arranged side by side. The first driving arm 621 and the second driving arm 623 may each be rotatably connected to the connection block 625. At this time, the first driving arm 621 and the second driving arm 623 may be rotatably connected to different positions of the connection block 625. Reference numeral 626 indicates the first axis 626 through which the connection block 625 is connected to the first driving arm 621, and reference numeral 627 indicates that the connection block 625 is connected to the second driving arm 623. ) shows the second axis 627 connected to. The first axis 626 and the second axis 627 can be said to be connecting axes that connect the controller 500 and the hinge module 600 to enable relative rotation.

The first driving arm 621 and the second driving arm 623 may be arranged to overlap each other. The first driving arm 621 is wider than the second driving arm 623, so the second driving arm 623 may be surrounded by the first driving arm 621. In this way, when the first driving arm 621 and the second driving arm 623 are arranged to overlap each other, even if the first driving arm 621 and the second driving arm 623 operate independently of each other, they interfere with each other. It may not work. This appearance is shown in Figure 65.

The first driving arm 621 and the second driving arm 623 may be connected to each other by a connecting link 624. One end of the connecting link 624 may be rotatably connected to the hinge housing 610 and simultaneously rotatably connected to the first driving arm 621 and the second driving arm 623. The connection link 624 can guide the movement of the first driving arm 621 and the second driving arm 623.

In Figure 52(b), the structure of the hinge module 600 is shown as a block diagram. As can be seen, a linear moving part 614 may be provided inside the hinge housing 610. The linear moving part 614 may guide the movement of the driving arm 620 while moving linearly inside the hinge housing 610.

For this purpose, the linear moving part 614 may be connected to the driving link 624'. One end of the drive link 624' may be rotatably connected to the linear moving part 614, and the other end may be rotatably connected to the second drive arm 623. At this time, the second driving arm 623 is connected to the connecting link 624, and the connecting link 624 is connected to the first driving arm 621. As a result, the driving link 624' is It can be seen that it is indirectly connected to the second driving arm 623.

A tension adjusting unit 616 may be connected to the linear moving unit 614. The tension adjusting unit 616 can adjust the tension applied by the hinge module 600 when the controller 500 moves. The tension adjusting unit 616 can prevent the controller 500 from opening suddenly. Additionally, the tension adjusting unit 616 may allow the controller 500 to stop at a specific angle.

The tension adjusting unit 616 may include an elastic member 616a and a damper 616b. The elastic member 616a may be configured as a spring whose one end is fixed to the hinge housing 610 and the other end is connected to the linear moving part 614. Accordingly, the spring can provide a certain amount of elastic force to the linear moving part 614. Since the linear moving part 614 must move while overcoming the elastic force of the spring, the controller 500 indirectly connected to the linear moving part 614 also receives the elastic force of the spring.

The damper 616b may be operated according to the movement of the linear moving part 614. The damper 616b can control the moving speed of the linear moving part 614 by applying a load of a predetermined size to the linear moving part 614 during the movement of the linear moving part 614. The damper 616b may be composed of a hydraulic damper 616b that converts the kinetic energy of the linear moving part 614 into thermal energy. When the controller 500 is initially rotated by a certain angle by the opening device 480 and then automatically rotated by gravity applied to the controller 500, the damper 616b can perform a buffering function. there is. That is, the damper 616b can allow the controller 500 to move at a relatively slow speed in the second open section extending from the end of the first open section to the second position.

As another example, either the spring or the damper 616b of the tension adjusting unit 616 may be omitted. For example, when the damper 616b is omitted, the spring can compensate for the gravity applied to the controller 500 by providing a certain elastic force to the linear moving part 614. As another example, both the spring and the damper 616b may be omitted.

At this time, the tension adjustment unit 616 may not be directly connected to the linear moving unit 614, but may be connected through an adjustment link 615. The adjustment link 615 may be disposed inside the hinge housing 610. One end of the adjustment link 615 may be rotatably fixed to the hinge housing 610, and the other end of the adjustment link 615 may be rotatably connected to the linear moving part 614. And, the tension adjustment unit 616 may be connected to the adjustment link 615. In this case, the load applied by the tension adjusting unit 616 can be transmitted to the linear moving unit 614 through the adjusting link 615. As another example, the tension adjusting unit 616 may be directly connected to the linear moving unit 614.

A connection block 625 may be connected to the driving arm 620. The connection block 625 can connect the driving arm 620 and the controller 500. The connection block 625 may include a first axis 626 connected to the first driving arm 621 and a second axis 627 connected to the second driving arm 623. The first axis 626 and the second axis 627 are arranged at different positions, thereby limiting the rotation angle of the connection block 625.

In this way, since the connection block 625 connects the hinge module 600 and the controller 500, the connection block 625 can also be said to be a connection between the hinge module 600 and the controller 500. . The rotation center of the controller 500 may also be provided in the connection block 625.

The connection block 625 may be provided with a connection end 625a. The connection end 625a may be made to have a substantially plate-shaped structure extending from the connection block 625. The connection end 625a may be seated on the first hinge coupling portion 521. Looking at Figure 54, it can be seen that the connecting end portion 625a is disposed on the first hinge coupling portion 521.

The connection end 625a may be seated on the seating boss 523 of the first hinge coupling portion 521. Additionally, the block assembly hole 625a' formed at the connection end 625a may be connected to the hinge fastening hole 523a of the seating boss 523. These can be fastened by a block fastener (B4), and when the block fastener (B4) is tightened, the cover hinge hole 553, the block assembly hole 625a' and the block assembly hole 625a' constituting the hinge module 600. It can pass through the hinge fastening holes (523a) in order. More precisely, the fastener passes through the cover hinge hole 553, the block assembly hole 625a', and the hinge fastening hole 523a, which are connected to each other, and connects the cover frame 550 and the connection block 625. ) and the main housing 510. Like the hinge fastening hole 523a and the cover hinge hole 553, two block assembly holes 625a' spaced apart from each other may be formed at the connecting end 625a.

The connection block 625 may be provided with a locking piece 628. The locking piece 628 can be inserted into and caught in the locking pocket 528a of the second hinge coupling portion 525. Referring to Figure 64, the locking piece 628 may be connected to the main body of the connecting block 625 through a connecting bridge 628'. The connecting bridge 628' and the locking piece 628 may form an approximately T-shape. The connection bridge 628' can increase the durability of the connection block 625 by widening the connection area between the locking piece 628 and the main body of the connection block 625. In order to prevent interference with the connecting bridge 628', a slit portion 528b may be formed in the upper and lower direction in the block locking portion 528 of the second hinge coupling portion 525.

Referring to Figure 55, the connection end 625a of the connection block 625 and the locking piece 628 may be provided at different positions in the front and rear directions. Here, the front-back direction refers to the thickness direction of the connection block 625, and represents the left-right direction based on the drawing. If the connection end 625a and the locking piece 628 are provided at different heights, the heights of the two parts where the connection block 625 is fixed to the main housing 510 may also be formed at different heights.

More precisely, the connecting end 625a is fixed to the first hinge coupling part 521 and the locking piece 628 is fixed to the second hinge coupling part 525, where the first hinge coupling part ( The part fixed to 521) and the part fixed to the second hinge coupling part 525 are positioned differently in the front and rear directions. Reference numeral L1 indicates the distance between the part fixed to the first hinge coupling part 521 and the part fixed to the second hinge coupling part 525.

At the same time, the connecting end 625a and the locking piece 628 can be positioned differently in the vertical direction. The connection end 625a may be disposed higher than the locking piece 628 of the connection block 625. Accordingly, the connecting end 625a and the locking piece 628 can be coupled to the main housing 510 at positions spaced apart from each other in the vertical direction.

In this way, the connection block 625 can be fixed to the main housing 510 at different positions in the front-back and up-down directions. Accordingly, the hinge module 600 and the controller 500 can be coupled to each other at positions spaced apart in various directions, and the external force applied to the coupling portion of the hinge module 600 and the controller 500 can be spread more widely. It can be dispersed.

The hinge module 600 may be provided with a hinge sensor 640. The hinge sensor 640 can detect whether the hinge module 600 is operating. At least a portion of the hinge sensor 640 may be disposed inside the hinge housing 610. The hinge sensor 640 disposed inside the hinge housing 610 can detect the operation of one of the plurality of parts constituting the hinge module 600. For example, the hinge sensor 640 can detect the movement of the linear moving part 614. When the linear moving part 614 presses the hinge sensor 640, the hinge sensor 640 can detect that the linear moving part 614 is in its initial position. The main control unit 700 connected to the hinge sensor 640 can know that the controller 500 is in the first position through a signal transmitted from the hinge sensor 640.

Figure 60 shows a portion of the wire harness (W) connected to the controller 500 and a wire cover 670 that secures the wire harness (W). The wire cover 670 covers the wire harness (W) and prevents the wire harness (W) from being exposed to the outside, thereby improving the aesthetics of the cooking appliance. Additionally, the wire cover 670 restricts the wire harness W from extending along the hinge module 600 without moving freely, thereby preventing the wire harness W from interfering with surrounding parts.

The wire cover 670 may be assembled to the driving arm 620 of the hinge module 600. In this embodiment, the wire harness (W) extends only toward one hinge module (600) of a pair of hinge modules (600), so the wire cover (670) can also be assembled to only one hinge module (600). there is.

In this embodiment, the wire cover 670 may move along the hinge module 600 in a state parallel to at least a portion of the surface of the hinge module 600. Accordingly, the wire cover 670 can be maintained in close contact with the hinge module 600 while moving. When the wire cover 670 is moved in close contact with the hinge module 600, the surface area of the parts exposed between the controller 300 and the cases 100 and 200 can be reduced. Additionally, since the wire cover 670 appears to be a part of the hinge module 600, it can provide a high sense of unity.

The wire cover 670 may have an approximately hexahedral shape. The wire cover 670 may have a vertical height higher than that of the driving arm 620. It is preferable that the vertical height of the wire cover 670 is formed to be larger than the diameter of the wire harness (W).

Additionally, the front-to-back length of the wire cover 670 may be shorter than the front-to-back length of the hinge housing 610. When the driving arm 620 is fully protruded, that is, when the controller 500 is in the second position, the end of the wire cover 670 is not exposed to the outside, and the hinge hole of the front panel 420 ( 423) and can have a length that allows it to be located inside. In this case, when the controller 500 is in the second position, the wire harness (W) can also be completely covered by the wire cover 670. Referring to FIG. 18, the side of the driving arm 620 exposed in front of the front panel 420 is shown covered with the wire cover 670.

The wire cover 670 may be coupled to the driving arm 620. When the wire cover 670 is coupled to the driving arm 620, the wire cover 670 can move together with the driving arm 620. The wire cover 670 can move along a certain movement path of the driving arm 620 while continuing to cover the wire harness (W).

The wire cover 670 can pass through the upper hinge hole 283 opened in the front frame 280 together with the second driving arm 621. At this time, when the controller 300 is in the fully open second position, the other end of the wire cover 670 does not protrude out of the upper hinge hole 283, but is still inside the upper space S2. can be located Accordingly, the wire cover 670 can cover and protect the entire exposed portion of the wire harness (W).

The skeleton of the wire cover 670 may be formed by the cover body 671. The cover body 671 may have an approximately hollow tube structure. A guide channel 672 (see FIG. 65) through which the wire harness (W) passes may be formed inside the cover body 671. The guide channel 672 may have a structure in which both ends are open. In this embodiment, the cover body 671 has a roughly rectangular cross-section. Alternatively, the cover body 671 may have a cylindrical shape or other polygonal shape.

The cover body 671 may be formed to be inclined downward toward the coupling head 673, which is one end connected to the first driving arm 621 of the hinge module 600, or may be formed along a curved path. In this way, the cover body 671 can have a shape according to the movement path of the first driving arm 621, and friction with the wire harness (W) can be reduced during the movement process.

If the cover body 671 has an arc shape, the cover body 671 may extend along a certain radius of curvature. At this time, it is preferable that the radius of curvature of the cover body 671 is greater than or equal to the rotation radius of the first driving arm 621. That is, the cover body 671 may have a curved path that is equal to or more gentle than the rotation radius of the first driving arm 621. In this way, the cover body 671 can be extended along the extension direction of the wire harness (W), and friction with the wire harness (W) during the movement process can be minimized.

In addition, the wire cover 670 can be formed to be short because it moves and surrounds the wire harness (W). Specifically, the front-to-back length of the cover body 671 may be shorter than the front-to-back length of the hinge housing 610.

One side of the guide channel 672 may be open. The wire harness (W) can be easily inserted into the guide channel 672 through one open side of the guide channel 672. At this time, one open side of the guide channel 672 may be covered by the hinge housing 610 or the first driving arm 621.

Referring to Figure 64, before the first driving arm 621 protrudes forward, the side of the hinge housing 610 may cover one open side of the guide channel 672. And, when the first driving arm 621 protrudes forward, the wire cover 670 also moves forward, and at this time, at least part or all of one open side of the guide channel 672 is exposed to the first drive arm 621. It may be obscured by the side of the driving arm 621.

Also, the wire cover 670 can move within the height range of the hinge housing 610. That is, the top and bottom of the cover body 671 can always stay in the section between the top and bottom of the hinge housing 610. Accordingly, the side of the hinge housing 610 can completely cover one open side of the guide channel 672.

The wire cover 670 may be coupled to the first driving arm 621 of the driving arms 620. 62, the coupling head 673 of the wire cover 670 is shown coupled to the first driving arm 621. The coupling head 673 may be provided at one end of the wire cover 670.

The coupling head 673 may have a structure that surrounds the surface of the first driving arm 621, and may have a type of clamp structure, for example. Additionally, the remaining portion of the wire cover 670 extending from the coupling head 673 may be disposed along the surface of the hinge housing 610.

At this time, the vertical height of the wire cover 670 including the coupling head 673 may be formed to be higher than the vertical height of the first driving arm 621. In this way, the wire cover 670 can surround the first driving arm 621 more stably.

Meanwhile, when the controller 300 is in the first position, one surface of the coupling head 673 may face the front of the hinge housing 610 constituting the hinge module 600. In this case, the coupling head 673 can be caught on the front of the hinge housing 610, and the wire cover 670 can be naturally prevented from moving further back than its original position.

Looking at the structure of the coupling head 673 with reference to FIGS. 63 to 65, the coupling head 673 may include a coupling finger 674 (see FIG. 64). The coupling finger 674 may surround the surface of the first driving arm 621. The coupling finger 674 has a cantilever structure capable of elastic deformation, and can be elastically deformed to some extent and then restored when assembled to the first driving arm 621. The coupling finger 674 may protrude from the cover body 671 in a direction perpendicular to the moving direction of the first driving arm 621.

The coupling fingers 674 may include a first coupling finger 674a and a second coupling finger 674b. The first coupling finger 674a and the second coupling finger 674b extend from the upper and lower parts of the cover body 671, respectively, to form the coupling head 673. The first coupling finger 674a and the second coupling finger 674b may surround the first driving arm 621.

The first coupling finger 674a protrudes from the cover body 671 and may surround a plurality of surfaces of the first driving arm 621. Referring to FIG. 65, the first coupling finger 674a may surround the top, side, and bottom surfaces of the first driving arm 621, respectively. The first coupling finger 674a may be coupled to the first driving arm 621 while rotating. In this process, the first coupling finger 674a is elastically deformed to some extent and then restored, and can be coupled to the first driving arm 621 while covering a plurality of surfaces of the first driving arm 621. .

A first coupling end 674a' may be provided at the end of the first coupling finger 674a. The first coupling end 674a' may further extend in another direction from the end of the first coupling finger 674a. In this embodiment, the first coupling end 674a' may protrude toward the inside of the guide channel 672. The first coupling end 674a' may surround the bottom of the first driving arm 621. As another example, the first coupling end 674a' may protrude upward and surround the side of the first driving arm 621 rather than the bottom.

The second coupling finger 674b protrudes from the cover body 671 and may surround the surface of the first driving arm 621. The second coupling finger 674b may be coupled to the first driving arm 621 like the first coupling finger 674a. The second coupling finger 674b, together with the first coupling finger 674a, can ensure that the wire cover 670 is more stably fixed to the first driving arm 621.

The second coupling finger 674b may be provided at a different height from the first coupling finger 674a. Here, height refers to the vertical direction based on Figure 65. Since the second coupling finger 674b and the first coupling finger 674a have different heights, the coupling head 673 may be roughly in the shape of a pincer when viewed from the front.

Additionally, the second coupling finger 674b may surround the first driving arm 621 at a position different from the first coupling finger 674a in the front-to-back direction. In other words, the second coupling finger 674b may be coupled to the first driving arm 621 at a position relatively farther from the connection block 625 than the first coupling finger 674a. In this way, when the second coupling finger 674b is coupled to the first driving arm 621 at a different position from the first coupling finger 674a, the wire cover 670 and the first driving arm 621 The bonding points between them increase and the bonding area expands, thereby increasing the bonding strength between them.

Although not shown, the second coupling finger 674b may be inserted into a defective groove recessed in the bottom of the first driving arm 621. When the second coupling finger (674b) is inserted into the coupling groove, the second coupling finger (674b) does not move relative to the first driving arm 621 in the forward and backward directions, but remains fixed at a certain position. It can be maintained.

The second coupling finger 674b may be provided with a second coupling end 674b'. The second coupling end 674b' may further extend from the end of the second coupling finger 674b in a direction different from the direction in which the second coupling finger 674b extends from the cover body 671. In this embodiment, the second coupling end 674b' may protrude upward. The second coupling end 674b' may surround the inner side of the first driving arm 621.

As a result, the first coupling finger 674a surrounds the top, inner, and bottom surfaces of the first driving arm 621, and the second coupling finger 674b surrounds the bottom surface and the bottom of the first driving arm 621. It wraps around the inner side. And since they have different up-down positions and front-to-back positions, they can be coupled to the first driving arm 621 at various locations, thereby increasing assembly stability.

Meanwhile, as shown in Figure 64, the cover body 671 may be provided with a wire clip 677. The wire clip 677 may protrude from the edge of the guide channel 672 in a direction that covers one open side of the guide channel 672. The wire clip 677 can prevent the wire harness (W) inserted into the guide channel 672 from being separated to the outside of the guide channel 672.

At this time, a plurality of wire clips 677 may be arranged along the cover body 671. More precisely, the plurality of wire clips 677 may be arranged along the direction in which the wire harness (W) extends. The plurality of wire clips 677 may each be provided at an edge of one open side of the guide channel 672.

Next, with reference to FIGS. 66 to 79, we will look at the door lock device 800. The door lock device 800 may be placed in the cases 100 and 200. The door lock device 800 can maintain the locked state of the door 300 so that the door 300 cannot be opened arbitrarily. As another example, the door lock 800 may be disposed on the door 300 rather than on the cases 100 and 200.

Figure 66 shows the location where the door lock device 800 is placed. As can be seen, a part of the door lock device 800 may be disposed between the bottom of the controller 500 and the top of the door 300. More precisely, the lock head 855 of the latch 850 constituting the door lock device 800 may have a height between the bottom of the controller 500 and the top of the door 300.

In this way, when a part of the door lock device 800 is placed between the bottom of the controller 500 and the top of the door 300, the operator can move the door between the bottom of the controller 500 and the top of the door 300. The door lock 800 can be operated. For example, when it is necessary to urgently open the door 300 while the door 300 is locked, the worker disassembles the head fastener 857 assembled to the latch 850 of the door lock 800. Then, the door can be unlocked by sliding the lock head 855 in one direction (arrow direction in FIG. 66). This process will be explained below.

At this time, the door lock 800 may be exposed only through the gap between the bottom of the controller 500 and the top of the door 300. Therefore, the head fastener 857, etc. is exposed only when the user looks directly at the gap between the bottom of the controller 500 and the top of the door 300, so the door lock 800 provides an aesthetic effect to the cooking appliance. It may not harm you.

Additionally, as will be explained below, when removing the head fastener 857, the user can insert a tool such as a screwdriver into the gap between the bottom of the controller 500 and the top of the door 300. there is. At this time, the gap between the bottom of the controller 500 and the top of the door 300 may form a guide path for inserting a kind of tool. Accordingly, the user can more easily approach the tool toward the head fastener 857.

Referring to Figure 67, the upper cover 260 is removed and the electrical equipment compartment S2 is exposed. The door lock device 800 may be fixed to the upper surface of the upper case 240. The door lock device 800 may be placed in the front of the upper case 240. Additionally, the door lock device 800 may be disposed to be biased on either side of the upper case 240 based on the left and right directions. In this embodiment, the door lock device 800 is disposed close to the left end of the upper case 240. Therefore, the door lock device 800 may be adjacent to the hinge module 600. As another example, the door lock device 800 may be placed at the right end of the upper case 240, or may be placed at the center.

A part of the door lock device 800, more precisely, the lock head 855 of the latch 850 may pass through the latch hole E1 formed in the front frame 280 and protrude forward. The protruding lock head 855 can be caught in the locking hole 379 formed in the door frame 370. Since one end of the lock head 855 protrudes downward, it can be inserted into the lock hole 379. For reference, Figure 67 shows a state in which the latch 850 is not rotated downward and the lock head 855 is not caught in the lock hole 379.

Since the lock head 855 of the door lock device 800 is caught on the door frame 370, the door 300 can be locked only when the door 300 is closed. 68, the state before the door 300 is completely closed is shown. Since the lock hole 379 of the door frame 370 is spaced apart from the lock head 855, the lock head 855 is It is in a state where it cannot be caught in the lock hole (379).

In this state, when the door 300 is closed in the direction of the arrow in FIG. 68, the door 300 is in a closed state as shown in FIG. 69. When the door 300 is closed in this way, the lock hole 379 may be located on the rotation path of the lock head 855. When the lock head 855 is rotated in the direction of the arrow in FIG. 69, the lock head 855 can be inserted into the lock hole 379 to lock the door 300.

The door lock device 800 may be automatically operated through a power source such as a motor. The door lock device 800 operates automatically and can be in a locked or unlocked state. The door lock device 800 is connected to the main control unit 700 and its operation can be controlled by the main control unit 700.

Referring to FIGS. 70 and 71, the lock housing 810 may form the skeleton of the door lock device 800. The lock housing 810 may be placed in the upper case 240. The lock housing 810 includes a lock motor 820, lock gears 831 and 835, a drive slider 840, a latch 850, a close button 870, a button spring 879, and a lock sensor 860, which will be described below. ), parts such as the closing sensor 880 may be arranged.

At this time, when the close button 870 is pressed backwards (in the direction of arrow ①) by the door 300, the closing sensor 880 detects this, and the main control unit 700 operates the locking motor 820. You can. By operating the locking motor 820, the latch 850 can rotate downward (in the direction of arrow ②) to lock the door 300.

When components are installed in the lock housing 810, the latch 850 and the close button 870 may protrude forward. Additionally, the locking gears 831 and 835 and the driving slider 840 may be shielded by a locking cover 819. In this way, the door lock device 800 can be placed on the upper case 240 with the components assembled in the lock housing 810.

Referring to Figure 72, a recessed installation space 811 may be formed in the lock housing 810. A mounting protrusion 812 may be provided at the edge of the installation space 811. The cover hole 819' of the locking cover 819 and the bracket hole 824 of the locking motor 820 can be fitted into the mounting protrusion 812, respectively. The mounting protrusion 812 may protrude from the upper surface of the wall structure surrounding the installation space 811.

As another example, the lock housing 810 may be omitted, or the lock housing 810 may be provided integrally in the upper space (S2). That is, the lock housing 810 may be a part of the upper case 240 that constitutes the cases 100 and 200. In this case, the lock gears 831 and 835, the driving slider 840, and the latch 850 may be installed directly on the upper case 240.

In addition, the locking motor 820 may be placed on the upper part of the wall structure surrounding the installation space 811. Accordingly, the locking gears 831 and 835, the driving slider 840, and the latch 850 may be disposed below the locking motor 820.

A first operation path 813 and a second operation path 815 may be arranged in front of the installation space 811. The first operation path 813 and the second operation path 815 may be partitioned from each other. The latch 850 and the driving slider 840 may be disposed in the first operation path 813. The close button 870 may be placed on the second operation path 815.

The locking cover 819 may cover the installation space 811. The locking cover 819 may cover the upper part of the installation space 811 and partially cover the locking gears 831 and 835 and the driving slider 840. The lock cover 819 may be arranged in a different position from the lock motor 820 to avoid interference with the lock motor 820.

A locking motor 820 may be placed at the top of the installation space 811. The lock motor 820 may provide rotational force to operate the door lock device 800. The terminal 827 of the lock motor 820 is connected to the main control unit 700 and can receive power and operation signals from the main control unit 700. Reference numeral 824 denotes a bracket hole 824 fitted into the mounting protrusion 812.

A motor shaft 822 may protrude from the lower part of the locking motor 820. The motor shaft 822 may be rotated by the rotational force of the locking motor 820. The motor shaft 822 may engage the first lock gear 831 among the lock gears 831 and 835, which will be described below, and rotate the first lock gear 831.

Locking gears 831 and 835 may be placed in the installation space 811. The locking gears 831 and 835 may operate the driving slider 840 while rotating by the locking motor 820. The lock gears 831 and 835 may be composed of a plurality of gears. The lock gears 831 and 835 include a first lock gear 831 that engages with the motor shaft 822 and rotates, and a first lock gear 831 that engages with the first lock gear 831 and rotates in the opposite direction to the first lock gear 831. A second locking gear 835 may be included. The first lock gear 831 and the second lock gear 835 may be composed of spur gears arranged side by side.

At this time, the first lock gear 831 may be provided with a sensing protrusion 833. The sensing protrusion 833 may protrude from the surface of the first lock gear 831. The sensing protrusion 833 can operate the lock sensor 860. In the process of rotating the first lock gear 831, the sensing protrusion 833 presses the lock sensor 860 so that the lock sensor 860 detects the rotation state of the first lock gear 831. do. Reference numeral 862 denotes a button portion 877 of the lock sensor 860 that is pressed by the sensing protrusion 833.

The second lock gear 835 may be provided with a driving protrusion 837. The driving protrusion 837 may protrude from the surface of the second lock gear 835. The driving protrusion 837 is engaged with the driving slider 840, allowing the driving slider 840 to move in a straight line. That is, the rotational movement of the second lock gear 835 can be converted into the linear movement of the driving slider 840. More precisely, the driving protrusion 837 is connected to the link end 842 of the driving slider 840 to operate the driving slider 840.

As another example, the lock gears 831 and 835 may consist of only one gear. At this time, both the sensing protrusion 833 and the driving protrusion 837 may be included in one gear. As another example, the lock gears 831 and 835 may be composed of three or more gears. In this case, the plurality of gears may engage and rotate with each other to implement a deceleration function that reduces the rotational speed of the locking motor 820.

A driving slider 840 may be connected to the second lock gear 835. The driving slider 840 may be disposed on the first operation path 813. The driving slider 840 can move linearly in the forward and backward directions along the first operation path 813. One end of the driving slider 840 is connected to the second lock gear 835, and the other end can selectively interfere with the latch 850 to rotate the latch 850.

A link end 842 may be provided at one end of the driving slider 840. The link end 842 may be disposed on an upper portion of the second lock gear 835 and cover a portion of the second lock gear 835. Although not shown, a link slot into which the driving protrusion 837 of the second lock gear 835 is inserted may be formed on the bottom of the link end 842. The driving protrusion 837 can move the driving slider 840 in a straight line while moving along the arc-shaped link slot.

A driving head 845 may be provided at the other end of the driving slider 840. The driving head 845 may interfere with the latch 850 while the driving slider 840 moves in a straight line. More precisely, the driving head 845 can dig into the lower part of the interference end 851 of the latch 850 and lift one side of the latch 850. When one side of the latch 850 is lifted, the other side goes down, and the lock head 855 may be provided on the side that goes down like this.

To this end, the surface of the driving head 845 may be a curved or inclined surface. That is, the height of the driving head 845 may decrease toward the end. Accordingly, the driving head 845 can more easily dig into the lower part of the interference end 851 of the latch 850.

Referring to FIG. 72, the driving head 845 of the driving slider 840 and the link end 842 may have different heights. The driving head 845 may be provided relatively lower than the link end 842. Since the link end 842 is disposed above the second lock gear 835, it can be provided higher than the driving head 845.

A latch 850 may be disposed in front of the driving slider 840. A portion of the latch 850 may be rotatably provided inside the first operation path 813. When the latch 850 is rotated, the lock head 855 provided at the front of the latch 850 may face downward or the lock head 855 may be lifted upward.

The latch 850 may rotate in a first direction and be caught in the locking hole 379. Additionally, the latch 850 may rotate in a second direction opposite to the first direction to escape from the locking hole 379.

In this embodiment, the latch 850 is disposed above the lock button 870. The lock button 870 may be pressed against the pressing surface 378a of the lock body 378 provided on the door 300 at a lower position than the latch 850.

An interference end 851 may be provided at one end of the latch 850. The interference end 851 can be viewed as a part that interferes with the driving slider 840 and lifts the driving slider 840. The driving head 845 of the driving slider 840 can lift the lower part of the interference end 851.

A latch rotation shaft 853 may be connected to the rotation groove portion 852 of the latch 850. The latch rotation axis 853 may be inserted into the latch rotation hole 814 formed in the lock housing 810 and become the rotation center axis of the latch 850. In a state where the rotation groove portion 852 of the latch 850 is disposed inside the first operation path 813, the latch rotation axis 853 is located outside the first operation path 813 at the latch rotation hole 814. ) can be inserted through and fitted into the rotation groove 852.

The latch 850 may be provided with a return spring 854. The return spring 854 may be a torsion spring inserted into the latch rotation shaft 853. The return spring 854 may provide rotational force to the latch 850 so that the lock head 855 of the latch 850 can rotate upward, that is, in a lifting direction. Accordingly, when the driving slider 840 interferes with the latch 850 and does not lower the latch 850, the lock head 855 of the latch 850 is lifted and unlocked.

73 and 74 show the door lock device 800 when the lock head 855 is lifted, that is, in an unlocked state. As can be seen, when the driving slider 840 retreats rearward, the lock head 855, which is the front part of the latch 850, is lifted. Since the return spring 854 is connected to the latch 850, if the driving slider 840 does not lift the interference end 851 of the latch 850, the lock can be basically unlocked.

As shown in Figure 74, when in the unlocked state, the sensing protrusion 833 of the first lock gear 831 does not press the lock sensor 860. At the same time, the driving protrusion 837 (not shown in FIG. 74) of the second lock gear 835 moves rearward, and the link end 842 of the driving slider 840 also moves rearward. In addition, the driving head 845 of the driving slider 840 also retreats and is spaced apart from the interference end 851 of the latch 850.

Figures 75 and 76 show the door lock device 800 when the lock head 855 is lowered, that is, in a locked state. As can be seen, when the driving slider 840 moves forward, the lock head 855, which is the front part of the latch 850, goes down. When the driving slider 840 moves forward while overcoming the elastic force of the return spring 854, the driving slider 840 lifts the interference end 851 of the latch 850 and enters a locked state.

Referring to Figure 76, when the close button 870 is pressed against the door 300 and retracts (in the direction of arrow ①), the closing sensor 880 can detect this. The signal from the closing sensor 880 is transmitted to the main control unit 700, so that the main control unit 700 can operate the locking motor 820.

When the locking motor 820 is operated, the locking motor 820 can rotate the first locking gear 831 in one direction (arrow ② direction). And, the second lock gear 835 engaged with the first lock gear 831 can be rotated in the other direction (arrow ③ direction). When the second lock gear 835 rotates, the driving protrusion 837 (not shown in FIG. 76) of the second lock gear 835 moves forward and the link end 842 of the drive slider 840 also moves forward. It can be moved forward (in the direction of arrow ④).

At the same time, the driving head 845 of the driving slider 840 also advances and goes under the interference end 851 of the latch 850. Accordingly, the lock head 855 opposite the interference end 851 can rotate downward. And the lock head 855 is caught in the lock hole 379 (see Figure 70).

In this state, the sensing protrusion 833 of the first lock gear 831 can detect the locking state by pressing the lock sensor 860. In the process of rotating the first lock gear 831, the sensing protrusion 833 presses the lock sensor 860 so that the lock sensor 860 detects the rotation state of the first lock gear 831. It is done. The main control unit 700 can detect this locking state and stop the operation of the locking motor 820. In this embodiment, when the first lock gear 831 rotates once, the sensing protrusion 833 presses the lock sensor 860. That is, when the first lock gear 831 rotates once, the sensing protrusion 833 returns to its original position and operates the lock sensor 860.

Meanwhile, looking at FIGS. 77 and 78, the lock head 855 may be provided on the opposite side of the interference end 851 with the rotation groove 852 as the center. The lock head 855 may be rotated in the opposite direction to the interference end 851. That is, when the interference end 851 is lifted by the driving head 845, the lock head 855 moves downward, and conversely, the interference end 851 moves downward by the return spring 854. When lowered, the lock head 855 is lifted upward.

At this time, the lock head 855 may be separated from one end of the latch 850. The lock head 855 can be assembled to the latch 850 in a detachable state using a head fastener 857. Then, when the head fastener 857 is released from the latch 850, the lock head 855 can be separated from the latch 850.

Referring to Figure 78, a latch groove 854 may be formed in the front part of the latch 850. The head coupling portion 856 of the lock head 855 may be fitted into the latch groove 854. Both the latch groove 854 and the head coupling portion 856 may be formed in a direction parallel to the rotation axis of the latch 850, that is, in a direction parallel to the rotation groove portion 852.

When the head engaging portion 856 is inserted into the latch groove 854, a first release hole 854a formed on one end of the latch 850 and a second release hole formed on the lock head 855 ( 855a) may be consecutive to each other. The head fastener 857 can be fastened to the first release hole 854a and the second release hole 855a that are continuous in this way. When the head fastener 857 is a bolt, the head fastener 857 can be rotated and fastened to the first release hole 854a and the second release hole 855a.

Conversely, when the head fastener 857 is separated, the lock head 855 can be disassembled from the latch 850. When the head fastener 857 is separated and the lock head 855 moves in the direction in which the head coupling portion 856 is removed from the latch groove 854, the lock head 855 latches (850). is separated from

The lock head 855 can be separated from the door lock device 800 in an emergency situation. For example, if the cooking appliance operates abnormally or the door 300 cannot be opened due to power saving while the cooking appliance is in operation, the door 300 needs to be opened arbitrarily. In this case, the user can unlock the door 300 by loosening the head fastener 857 and separating the lock head 855.

Referring to Figure 79, when the head fastener 857 is separated forward (in the direction of arrow ①), the locking head 855 can be separated to the left (in the direction of arrow ②). At this time, when the lock head 855 is caught in the lock hole 379 of the door frame 370, the door 300 is locked. When the lock head 855 is separated from the door lock device 800, the door 300 is locked. It can be naturally unlocked.

The locking hole 379 of the door frame 370 is a part where the lock head 855 is caught, and may also serve as a path along which the lock head 855 moves after being separated. In Figure 79, the lock head 855 is shown moving to the left along the lock hole 379 after being separated from the latch 850. Accordingly, the user can easily separate the lock head 855 after loosening the head fastener 857, and the risk of losing the separated lock head 855 is reduced.

At this time, the head fastener 857 may be exposed forward. Referring to FIG. 71, the head fastener 857 may be exposed forward between the top of the door 300 and the bottom of the controller 500. Since the height between the top of the door 300 and the bottom of the controller 500 is the same as or slightly wider than the diameter of the head fastener 857, if the user does not look at it from the front, the head fastener 857 may not be visible. If the head fastener 857 is exposed when the user is looking at the door 300 from the front, the head fastener 857 can be loosened using a tool such as a screwdriver. Then, when the lock head 855 is moved to the left, the state in which the door lock device 800 has locked the door 300 is released, and the state is changed to the unlocked state.

Referring again to FIGS. 71 and 72, the door lock device 800 may be provided with a close button 870. The close button 870 is used to detect whether the door 300 is closed or open. The close button 870 is disposed on the second operating path 815 of the lock housing 810 and can move forward and backward.

A portion of the close button 870 may protrude forward. The front part of the close button 870 may protrude forward through the button hole (E2, see FIG. 67) of the front frame 280. The front part of the protruding close button 870 can be pressed against the rear of the door 300. When the front end of the close button 870 is pressed against the door 300 and retracted, the other end of the close button 870 can detect the closing of the door 300 by pressing the close sensor 880. For reference, Figure 68 shows the state before the pressing end 875, which is the front part of the closing button 870, is pressed against the pressing surface 378a of the locking body 378, and Figure 69 shows the closing button ( It is shown that the pressing end 875, which is the front part of 870, is pressed against the pressing surface 378a of the locking body 378 and retracted.

At this time, the close button 870 may be disposed outside the case 100 or 200 relative to the left and right width directions of the case 100 or 200, rather than the latch 850. In this embodiment, the close button 870 is placed to the left of the latch 850. Accordingly, the close button 870 can be placed relatively far from the user's line of sight.

The close button 870 may be shaped like a bar extending long in one direction. A pressing end 875 that is pressed by the door 300 may be provided at the front of the closing button 870. The pressing end 875 may have a wide front surface that is pressed by the door 300 . And a button portion 877 that presses the closing sensor 880 may be provided at the rear of the closing button 870.

Additionally, a button spring 879 may be inserted into the button portion 877. The button spring 879 may provide an elastic force to the close button 870 to move the close button 870 forward. One end of the button spring 879 may be fixed to the button portion 877, and the other end may be supported by the lock housing 810.

Reference numeral 882 denotes a closing detection button of the closing sensor 880 that is pressed by the button portion 877. The closing detection button 882 may be pressed by the distal end of the button portion 877 or by a step provided at the front end of the button portion 877. Referring to Figure 76, the direction in which the close button 870 is pushed and retreated by the door 300 is indicated by arrow ⓛ.

Next, the lighting module 900 will be described with reference to FIGS. 80 to 87. The lighting module 900 radiates light into the cavity (S1), allowing the user to observe the inside of the cavity (S1). The lighting module 900 may be placed in the cases 100 and 200. In this embodiment, the lighting module 900 may be placed in the electrical equipment room (S2).

The lighting module 900 may include a lighting guide 910 disposed in the lighting fastening portion 255 of the electrical equipment room (S2) and a lighting device 920 surrounded by the lighting guide 910. . The lighting guide 910 surrounds the lighting device 920 and can prevent external heat from directly affecting the lighting device 920.

The lighting guide 910 may form part of the lighting module 900. The lighting guide 910 may also be viewed as a case of the lighting module 900.

Referring to Figure 80, the lighting module 900 may be placed in the upper case 240. At this time, the lighting module 900 may be placed directly on the upper case 240 or may be placed on the guide duct 250 coupled to the upper case 240. In this embodiment, the lighting module 900 is disposed on the lighting fastening portion 255 that extends through the guide duct 250 to the upper case 240.

In this way, when the lighting module 900 is placed in the guide duct 250, the lighting module 900 is the air passing through the inside of the guide duct 250, that is, the third air passage (AC3, air discharge passage). It can be cooled by . Since the lighting module 900 is arranged to face the cavity S1, it may be affected by the high temperature inside the cavity S1, but can be continuously cooled through the air in the guide duct 250.

The lighting module 900 may be placed in the guide portion 250b of the guide duct 250. More precisely, the lighting module 900 may be placed on a virtual extension line passing through the center of the cooling fan module 410. In other words, both the cooling fan module 410 and the lighting module 900 can be considered to be disposed at the center of the upper case 240 in the left and right width directions, which in turn can be said to be disposed at the center of the left and right width directions of the cooking appliance.

In this way, when the lighting module 900 is placed at the center of the left and right width directions of the upper case 240, the lighting module 900 can irradiate light toward the center of the cavity (S1). When light is irradiated to the center of the cavity (S1), the light can be spread evenly without one side of the cavity (S1) being brighter or darker, and the user can observe the food inside the cavity (S1) more clearly. there is.

At this time, the lighting module 900 may be arranged obliquely to form a predetermined angle with a virtual extension line passing through the center of the cooling fan module 410. The angle formed between the virtual extension line passing through the center of the cooling fan module 410 and the virtual extension line extending along the longitudinal direction (inclined direction with respect to FIG. 80) of the lighting module 900 can be said to be K3. If the lighting module 900 is arranged at an angle in this way, the resistance that occurs when the air discharged along the guide duct 250 passes through the left and right sides of the lighting module 900 can be reduced.

Preferably, the lighting fastening portion 255 on which the lighting module 900 is mounted extends in an inclined direction between 20 and 40 degrees with respect to an imaginary extension line passing through the center of the cooling fan module 410. In this way, a decrease in the flow rate of air flowing through the guide duct 250 due to the presence of the lighting fastener 255 can be minimized. Additionally, if the lighting fastening portion 255 is disposed in this inclined direction, the deviation in the air discharge amount depending on the location of the exhaust port 282 can be reduced.

81 and 82 show the structure of the lighting guide 910 of the lighting module 900 fixed to the lighting fastening part 255. The skeleton of the lighting guide 910 may be formed by the guide body 911. The guide body 911 may have a three-dimensional structure with a predetermined height. The guide body 911 may be disposed inside the guide duct 250, that is, in the third air passage AC3.

More precisely, the lighting guide 910 may be placed at a position spaced forward from the cooling fan module 410 toward the door 300 . That is, the lighting guide 910 is disposed relatively closer to the front of the upper space S2 than the cooling fan module 410.

In addition, the cooling fan module 410 may be placed rearward based on the center of the upper space (S2), and the lighting guide 910 may be placed forward based on the center of the upper space (S2). You can.

The guide body 911 may extend longer in the vertical direction than the left and right widths. In addition, the guide body 911 may have a curved structure at its upper and lower ends, which are relatively short in length. Accordingly, the lighting guide 910 may have a substantially oval-shaped planar structure. This structure of the lighting guide 910 can induce the air flowing inside the third air passage AC3 to naturally flow to both sides of the lighting guide 910.

At this time, the lighting guide 910 is positioned in the rotational direction of the fan blade 417 (arrow in FIG. 80) based on the center line (up and down extension line in FIG. 80) of the cooling fan module 410 extending in the forward and backward directions. direction) and can be arranged inclinedly. In this way, the air flow resistance caused by the lighting guide 910 can be reduced. In other words, as the lighting guide 910 is arranged parallel to the air discharge direction, the air flow resistance is reduced.

In other words, the lighting guide 910 can be viewed as being arranged in a direction opposite to the discharge direction of the air discharged from the cooling fan module 410.

Preferably, the lighting guide 910 may be formed to be inclined by 20° to 40° along the rotation direction of the fan blade 417 with respect to the center line of the cooling fan module 410 extending in the front-back direction. . In this embodiment, the fan blade 417 rotates clockwise, so the lighting guide 910 can also be arranged in a clockwise rotation. If the fan blade 417 rotates counterclockwise, the lighting guide 910 may also be arranged in a counterclockwise rotation.

Table 1 below shows the flow rate (unit: CMM, Cubic Meter per Minute) and pressure standard deviation according to the inclination angle (unit: °) of the lighting guide 910. Here, the flow rate represents the flow rate of air discharged by the cooling fan module 410 and discharged through the exhaust port 282. And the pressure standard deviation represents the standard deviation of the pressure caused by the air discharged from the left, center, and right ends of the exhaust port 282, respectively.

inclination angle flux pressure standard deviation 5 1.55 3.14 10 1.49 2.99 15 1.68 1.54 20 2.21 1.15 25 2.29 1.18 30 2.24 1.14 35 2.25 1.21 40 2.22 1.25 45 1.71 2.02 50 1.54 2.89 55 1.34 3.55 60 1.31 3.78 65 1.19 3.91 70 1.23 4.22

As shown in Table 1 above, when the inclination angle of the lighting guide 910 is 5° to 15°, the flow rate is small and the pressure standard deviation is large. In addition, it can be seen that in the section where the inclination angle of the lighting guide 910 is 45° to 70°, the flow rate decreases again and the pressure standard deviation increases. When the lighting guide 910 is formed to be inclined by 20° to 40° along the rotational direction of the fan blade 417 with respect to the center line of the cooling fan module 410 extending in the front-back direction, the flow rate is relatively low. There are many, and the pressure standard deviation is small. Therefore, it can be considered desirable that the inclination angle of the lighting guide 910 is 20° to 40°.

In this way, if the inclination angle of the lighting guide 910 is 20° to 40°, the inclination angle of the lighting guide 910 may be the same as the discharge direction of the air discharged from the outlet 256a of the discharge space 256. As described above, the discharge space 256 may gradually widen toward the outlet 256a of the discharge space 256, and accordingly, the discharge space 256 flows along the inner wall of the body portion 250a. The discharge direction of the air discharged through the outlet 256a may be parallel to the direction in which the fan fastening portion 254 is inclined.

At this time, the extension line extending along the longitudinal direction of the lighting guide 910 may pass through the body portion 250a of the guide duct 250 where the cooling fan module 410 is disposed. At the same time, the extension line extending along the longitudinal direction of the lighting guide 910 may extend to a position beyond the fan blade 417. An extension line extending along the longitudinal direction of the lighting guide 910 may pass through the discharge space 256. In this case, the lighting guide 910 does not directly face the fan blade 417 and can face the air discharge direction.

The lighting guide 910 may be disposed closer to the front end of the upper space (S2) than the cooling fan module 410. In other words, the lighting guide 910 is disposed closer to the front frame 280 facing the door 300 than the cooling fan module 410. Accordingly, sufficient air flow space can be formed between the lighting guide 910 and the cooling fan module 410.

At this time, the lighting guide 910 and the cooling fan module 410 may be disposed on the center line of the electrical equipment room S2 extending in the front and rear directions, respectively. That is, both the lighting guide 910 and the cooling fan module 410 can be placed at the center of the left and right width directions of the electrical equipment compartment (S2). In this way, the air discharged by the cooling fan module 410 can flow evenly to the front of the cooking chamber (S2), and the light emitted by the lighting module 900 can be uniformly transmitted throughout the entire interior of the cavity (S1). there is.

A guide space 912 may be formed at the center of the lighting guide 910. The guide space 912 may be created by penetrating the lighting guide 910 in the vertical direction. The upper part of the guide space 912 may be open into the electrical equipment compartment (S2), and the lower part of the guide space 912 may be open in the direction of the cavity (S1). Components such as a lighting housing 921 and a lighting board 930, which will be described below, may be placed in the guide space 912.

The guide space 912 may have a long hole shape. Here, the long hole shape means that the front-to-back depth direction is longer than the left-right width direction. The left and right width direction indicates the left and right direction of the cooking appliance and means the Y direction in FIG. 1. And the front-to-back depth direction is based on the cooking appliance viewed from the front, and refers to the X direction in FIG. 1. The guide space 912 may surround the side of the lighting device 920 with a certain amount of free space.

The upper end of the lighting guide 910 may be seated on the upper surface of the guide duct 250. The lower end of the lighting guide 910 may be connected to the bottom of the air discharge passage, which is the third air passage AC3. In this case, the lighting guide 910 can be arranged throughout the height direction of the third air passage (AC3), and air cannot pass through the upper or lower part of the lighting guide 910, and air cannot pass through the lighting guide 910. It may pass through the side of the guide 910.

A guide fixing piece 913 may be provided at the top of the lighting guide 910. The guide fixing piece 913 is for fastening the lighting guide 910 to the guide duct 250. The guide fixing piece 913 is attached to the upper surface of the guide duct 250 using a separate fastener. can be assembled on

A guide step (not provided) may be provided at the entrance of the guide space 912. The guide step 914 may be gradually narrowed in width from the engaging rib 917 toward the inside of the guide space 912. The guide step 914 can serve as a guide when the lighting device 920 is inserted into the guide space 912 and can increase the surrounding strength of the engaging rib 917.

A flat portion 914 may be provided on the side of the guide body 911. The flat portion 914 may be provided on both sides of the guide body 911, respectively. When viewed from the top as shown in FIG. 81, the flat portion 914 can create a straight section on the side of the guide body 911. Due to the flat portion 914, the guide space 912 may have an overall long hole shape.

Among the surfaces of the lighting guide 910, part or all of the surface facing the cooling fan module 410 may be curved. In this embodiment, a curved portion 915 may be provided on the front of the guide body 911 above the guide duct 250, that is, toward the cooling fan module 410. More precisely, the curved portion 915 may face the outlet 256a of the discharge space 256 through which air is discharged by the cooling fan module 410. The curved portion 915 may connect a pair of the flat portions 914. The curved portion 915 can be viewed as the surface of the guide duct 250 disposed inside the guide duct 250 having a curved shape.

The curved portion 915 can make the surface of the guide duct 250 streamlined, thereby smoothing the flow of air passing through the third air passage S3. When viewed from a plane as shown in FIG. 81, the curved portion 915 may have an approximately semicircular structure. In this embodiment, the curved portion 915 is provided at the front and rear of the lighting guide 910, respectively. Alternatively, the curved portion 915 may be provided only in front of the lighting guide 910.

A locking rib 917 may be provided at the upper edge of the lighting guide 910. The engaging rib 917 may protrude in a direction to expand the width of the lighting guide 910. The engaging rib 917 ensures that the lighting guide 910 is caught and fixed to the lighting fastening portion 255. The locking rib 917 may be seated on the top of the lighting fastening portion 255.

When the lighting guide 910 is placed on the lighting fastening part 255, the engaging rib 917 is caught on the upper edge of the lighting fastening part 255, and the guide body 911 is attached to the upper case 240. It may protrude toward the upper surface of . That is, the guide body 911 can be disposed in the third air passage AC3 corresponding to the inside of the guide duct 250.

Figure 83 shows a lighting device 920. The lighting device 920 may be provided inside the guide space 912 of the lighting guide 910. The lighting device 920 is connected to the main control unit 700 and can irradiate light into the cavity (S1). The lighting device 920 may include a lighting board 930 electrically connected to the main control unit 700 and equipped with a light source 935, and the lighting board 930 is directed toward the electrical equipment room S2. may be exposed.

Specifically, the lighting housing 921 may form the skeleton of the lighting device 920. As shown in FIGS. 84 and 85, the lighting housing 921 may have an approximately hexahedral shape. The upper part of the lighting housing 921 is surrounded by the guide space 912 of the lighting guide 910, and a portion of the lower part may be fixed to the upper case 240.

The lighting housing 921 may include a part for fixing the lighting housing 921. In this embodiment, the lighting housing 921 may include a lighting fixing bracket 922 and an insertion body 923 to secure the lighting housing 921 to the lighting fastening portion 255. The lighting fixing bracket 922 and the insertion body 923 may protrude downward from the lighting housing 921. In addition, the lighting fixing bracket 922 and the insertion body 923 may be provided at both ends of the lighting housing 921 to be spaced apart from each other.

The lighting fixing bracket 922 is formed with a lighting fixing hole 922a into which a fastener is assembled, and can be fixed to the upper case 240 by a fastener such as a screw. The lighting fixing bracket 922 may extend from the lighting housing 921 in approximately an L shape.

The insertion body 923 may be inserted into the upper case 240. The insertion body 923 is fixed to the upper case 240 together with the lighting fixing bracket 922, thereby preventing the lighting housing 921 from rotating relative to the upper case 240. In addition, before the lighting fixing bracket 922 is fixed with a fastener, the insertion body 923 may temporarily fix the lighting housing 921 to the upper case 240. In this embodiment, the insertion body 923 protrudes further downward than the lighting fixing bracket 922.

Figure 85 shows an embodiment different from Figure 84. As can be seen, the insertion body 923 may be omitted in the lighting housing 921, and a pair of lighting fixing brackets 922 and 923' may be provided. The pair of lighting fixing brackets 922 and 923' each have lighting fixing holes 922a and 923a, and can be fixed to the upper case 240 using different fasteners.

A light source mounting portion 924 may be provided on the top of the lighting housing 921. The light source mounting portion 924 may be made recessed in the upper part of the lighting housing 921. A lighting board 930, which will be described below, may be placed in the lighting housing 921. In addition, the lighting housing 921 is provided with a first substrate fixing part 926 and a second substrate fixing part 927, so that the lighting substrate 930 can be fixed.

A lighting hole 925 may pass through the lighting housing 921. The lighting hole 925 may penetrate the lighting housing 921 in the vertical direction. The lighting hole 925 may be a path through which the light source 935 of the lighting board 930 passes. The lighting hole 925 may have a circular structure. As shown in Figure 84, one end of the lighting hole 925 may be open to the light source mounting portion 924.

Referring to Figure 85, a guide holder 925a may be provided at the edge of the lighting hole 925. The guide holder 925a may surround the lighting hole 925 and protrude downward, that is, toward the cavity S1. The guide holder 925a can hang and fix a part of the light guide 940 connected to the light source 935. For this purpose, a hook end 925a' may protrude from the end of the guide holder 925a.

The guide holder 925a may be composed of a plurality of guide holders 925a surrounding the lighting hole 925. The plurality of guide holders 925a are arranged to be spaced apart from each other and can each be elastically deformed. Since the guide holder 925a has a cantilever structure, it is naturally elastically deformed during the coupling process with the light guide 940 and can be restored after being coupled with the light guide 940.

More precisely, one end of the guide holder 925a may be connected to the lower part of the light source mounting portion 924, and the other end of the guide holder 925a may be a free end extending downward.

The guide holder 925a is composed of a plurality of guide holders 925a, and only some of the guide holders 925a may be provided with hook ends 925a'. Referring to Figure 85, among a total of four guide holders (925a), two guide holders (925a) have the hook end (925a'), but the hook end (925a') of the remaining two guide holders (925a) is omitted. It will happen. Referring to Figure 86, the hook end 925a' can be inserted into the catching groove 943 of the light guide 940. Meanwhile, looking at FIG. 87, the two guide holders 925a without the hook end portion 925a' can cover the catching groove 943.

The hook end 925a', which is the distal end of the guide holder 925a, may protrude toward the center of the lighting hole 925. This protruding hook end 925a' can be inserted into the catching groove 943 of the light guide 940, which will be described below. When the hook end 925a', which is the distal end of the guide holder 925a, is inserted into the locking groove 943, the light guide 940 can be fixed without being separated downward, that is, in the direction toward cavity S1.

The upper part of the lighting housing 921 may include a first substrate fixing part 926 and a second substrate fixing part 927. The first substrate fixing part 926 and the second substrate fixing part 927 can be fixed by hooking on the edge of the lighting board 930, respectively. The first substrate fixing part 926 and the second substrate fixing part 927 may be provided on both sides of the lighting hole 925 with the lighting hole 925 at the center.

The first substrate fixing portion 926 may protrude from the inner surface of the lighting housing 921 toward the center and cover a portion of the upper surface of the lighting substrate 930. In addition, the second substrate fixing part 927 has a cantilever structure and can be fixed to the upper surface of the lighting substrate 930. One side of the lighting board 930 may first be hung on the first substrate fixing part 926, and the other side may be caught on the second substrate fixing part 927.

84 and 87, the lighting hole 925 may be provided with an upper support portion 925b. The upper support portion 925b may protrude from the inner surface of the lighting hole 925 in a direction that narrows the diameter of the lighting hole 925. The upper support portion 925b may contact the upper surface of the light guide 940 and support the upper surface of the light guide 940. When the upper surface of the light guide 940 is supported by the upper support portion 925b, the light guide 940 is prevented from moving further upward, that is, toward the lighting board 930. In this way, the upper surface of the light guide 940 can be maintained at a constant distance from the light source 935 of the lighting board 930.

Referring to Figure 87, the upper support portion 925b supports the upper surface of the light guide 940. A plurality of the upper support portions 925b may be disposed in the lighting hole 925. A plurality of upper support parts 925b may be arranged around the inner peripheral surface of the lighting hole 925. The plurality of upper support portions 925b each support the upper surface of the light guide 940, thereby preventing the light guide 940 from being tilted in one direction.

More precisely, the upper support portion 925b may be provided at a higher position than the guide holder 925a. Additionally, the upper support portion 925b may be disposed to overlap the upper surface of the light guide 940. In this case, the upper support part 925b can be disposed between the lighting board 930 equipped with the light source 935 and the upper surface of the light guide 940.

As shown in Figure 85, a sealing space 928 may be formed outside the guide holder 925a. The sealing space 928 may be formed between the surface of the guide holder 925a and the inner wall of the lighting housing 921. The sealing space 928 may be open downward, that is, toward the cavity S1. A sealing block 950, which will be described below, can be inserted into the sealing space 928. The sealing block 950 can be inserted into the sealing space 928 to press the guide holder 925a toward the center of the lighting hole 925, that is, toward the light guide 940.

A lighting board 930 may be placed on the lighting housing 921. The lighting substrate 930 may include a light source 935 that irradiates light. The lighting board 930 is provided with the light source 935, so that light can be irradiated downward through the lighting hole 925, that is, toward the cavity S1. There may be a plurality of light sources 935. In this embodiment, the light source 935 is composed of an LED (Light Emitting Diode). As another example, the light source 935 may be composed of a halogen lamp.

The lighting board 930 may be provided with a light source component 931. The light source component 931 may be an electronic component such as a condenser. The light source component 931 may be disposed on the bottom of the lighting board 930. The light source component 931 may be one or plural. As another example, the light source component 931 may be a component for fixing the lighting board 930, regardless of the operation of the light source 935.

A substrate hole 932 may pass through the lighting substrate 930. The substrate hole 932 is used to fasten the lighting substrate 930 to the upper surface of the lighting housing 921 using a fastener. A separate fastener (not shown) may be assembled in the substrate hole 932. As another example, the substrate hole 932 may be omitted, and the lighting substrate 930 may be fixed only by the first substrate fixing part 926 and the second substrate fixing part 927.

A light guide 940 may be assembled at the lower part of the lighting housing 921. The light guide 940 may serve to evenly disperse the light from the light source 935. One end of the light guide 940 may be disposed to face the light guide 940, and the other end may face the inside of the cavity (S1).

The light guide 940 may have a substantially cylindrical shape. The light guide 940 may receive light from the light guide 940 and disperse the light into the interior of the cavity (S1). The light guide 940 may be made of a transparent or translucent material to transmit light. For example, the light guide 940 may be made of quartz.

At least a portion of the light guide 940 may be disposed inside the cavity S1. As another example, the light guide 940 may be in the shape of a polygonal column or may be a simple plate shape. Alternatively, the light guide 940 may be omitted, and the light from the light source 935 may be directly irradiated to the cavity (S1).

A locking groove 943 may be formed in the light guide 940. The locking groove 943 may be formed in a depressed shape surrounding the side of the light guide 940. The guide holder 925a can be fitted into the locking groove 943. More precisely, the hook end 925a' of the guide holder 925a is inserted into the catching groove 943, thereby preventing the light guide 940 from being separated downward.

The locking groove 943 may be formed close to the upper part 941 of the light guide 940 facing the light source 935. Additionally, the locking groove 943 may be formed to continuously surround the side of the light guide 940. As another example, the locking groove 943 may be formed intermittently at regular intervals on the side of the light guide 940.

A sealing block 950 may be inserted into the sealing space 928 of the lighting housing 921. The sealing block 950 can surround the light guide 940 and firmly fix the light guide 940. The sealing block 950 may serve as a type of insulating material that reduces the amount of high heat inside the cavity S1 transmitted to the lighting board 930 through the light guide 940. Additionally, the sealing block 950 can prevent moisture or foreign matter inside the cavity S1 from being transferred to the lighting board 930.

The sealing block 950 may be made of an elastic material. For example, the sealing block 950 may be made of silicone or rubber. The sealing block 950 may be made entirely of an elastic material, or only a portion may be made of an elastic material.

Looking at Figure 86, it can be seen that the sealing block 950 is inserted into the sealing space 928. The sealing block 950 inserted into the sealing space 928 can press the guide holder 925a toward the center of the lighting hole 925, that is, toward the surface of the light guide 940. At this time, since the guide holder 925a has a substantially cantilever structure, it can be deformed in the direction of the light guide 940 by the sealing block 950. Accordingly, the guide holder 925a can strongly press the surface of the light guide 940, and the hook end 925a' of the guide holder 925a is connected to the catching groove 943 of the light guide 940. ) can be stably maintained.

The thickness of the sealing block 950 may be greater than the width of the sealing space 928. In this case, in the process of inserting the sealing block 950 into the sealing space 928, the guide holder 925a will be pressed in the direction of the light guide 940 to the extent that it overlaps the width of the sealing space 928. You can. For this purpose, it is preferable that the sealing block 950 is assembled to the lighting housing 921 while the light guide 940 is first assembled to the lighting housing 921.

The sealing block 950 may have a substantially hexahedral shape. A guide through hole 954 through which the light guide 940 passes may be formed at the center of the sealing block 950. The upper part 941 of the light guide 940 can be placed inside the lighting hole 925 through the guide through-hole 954.

Referring to FIG. 85, a pressing protrusion 959 may protrude from the inner surface of the guide through hole 954 toward the center of the guide through hole 954. The pressing protrusion 959 may protrude in a direction to narrow the diameter of the guide through hole 954. The pressing protrusion 959 may pressurize the surface of the light guide 940 inserted into the guide through hole 954.

Referring to FIG. 84, an elastic deformation portion (not indicated) may be formed in the sealing block 950 to open the guide through hole 954 laterally. The elastic deformation portion may be viewed as a portion formed by omitting a portion of the side surface of the sealing block 950. The elastic deformation part may provide a free space in which the sealing block 950 can be elastically deformed when the sealing block 950 is pressed into the sealing space 928.

A block support 952 may be provided below the ceiling block 950. The block support 952 may protrude in a direction where its width increases compared to the upper part of the ceiling block 950. The block support 952 may be hung at the bottom of the lighting housing 921 to limit the assembly depth of the ceiling block 950. The block support 952 may be viewed as being supported around the entrance of the sealing space 928.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but rather to explain it, and the scope of the technical idea of the present invention is not limited by these examples. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

100: inner case 120: opening
130: Lower frame 150: First heat source module
160: second heat source module 170: third heat source module
200: Out case 210: Bottom case
215: bottom protrusion 220: rear case
230: Rear cover 240: Upper case
242: Connection hole 243: Tank mounting portion
250: Guide duct 250a: Body portion
250b: Guide part 254: Fan fastening part
255: Lighting fastening part 260: Upper cover
265: air inlet/outlet 266: blocking plate
270: Side cover 272: Side through hole
280: Front frame 280a: Cutout part
282: exhaust port 300: door
310: handle 370: door frame
378: locking body 379: locking hole
410: Cooling fan module 420: Front panel
421: Panel fixing part 422: Cam protrusion outlet
424: Entrance 424a: Upper guide
424b: Lower guide 424c: Side guide
425: first pocket part 450: water tank
455: Second pocket portion 460: Tank housing
467a, 467: Mounting bracket 469: Tank sensor
480: opening device 481: opening housing
484: Open motor 485: Cam part
490: Open sensor 500: Controller
510: main housing 511: housing fence
512: Part mounting portion 520: Hinge coupling portion
521: first hinge joint 525: second hinge joint
530: Control panel 550: Cover frame
552: Cover fence 555: Hinge assembly
590: Air guide 600: Hinge module
610: Hinge housing 620: Driving arm
621: 1st driving arm 623: 2nd driving arm
625: Connection block 640: Hinge sensor
670: Wire cover 700: Main control unit
800: Door lock 810: Lock housing
820: Locking motor 831,835: Locking gear
840: Drive slider 850: Latch
855: Lock head 857: Head fastener
870: Close button 880: Close sensor
900: Lighting module 910: Lighting guide
920: Lighting device 921: Lighting housing
930: lighting board 935: light source
950: Ceiling block

Claims (21)

A case with a cavity and a tank chamber formed inside;
a door disposed in front of the case to open and close the cavity;
a water tank discharged to the front of the case through an entrance of the tank chamber and having a water storage space therein;
a controller that moves from a first position that covers the entrance to the tank chamber to a second position that opens the entrance to the tank chamber;
A pair of hinge modules each connected to both lower parts of the controller and provided with a connecting shaft that becomes the center of rotation of the controller; and
An opening device disposed between the pair of hinge modules and provided with a cam unit for moving the controller along a first opening section starting from the first position,
A cooking appliance wherein when the controller is in the first position, the cam portion is disposed above the rotation center of the controller.
The cooking appliance according to claim 1, wherein the relative ratio (H2/H1) of the height (H2) from the bottom of the controller to the installation position of the cam portion to the overall height (H1) of the controller is 0.4 to 0.7.
The cooking appliance according to claim 1, wherein the ratio (Z1/L1) between the rotational distance (Z1) of the top of the controller and the maximum protruding distance (L1) of the cam portion of the opening device is 0.9 to 1.2.
The cooking appliance according to claim 1, wherein the controller is moved from the first position to the second position while rotating so that the upper end of the controller moves downward.
The cooking appliance according to claim 1, wherein the opening device is disposed at the center between both left and right ends of the controller.
The cooking appliance according to claim 1, wherein the cam portion is eccentrically connected to the rotation axis of the opening device.
The cooking appliance according to claim 1, wherein a portion of the cam portion protrudes toward the rear of the controller during rotation.
The cooking appliance according to claim 1, wherein a rotation angle at which the controller is rotated from the first position to the second position is 80° to 100°.
The method of claim 1, wherein the opening device
an open housing disposed inside the case;
an open motor disposed in the open housing;
A cooking appliance comprising: the cam portion disposed in the open housing, rotated by the opening motor, and a portion of the cam portion protrudes outward from the case during rotation.
The cooking appliance according to claim 1, wherein the cam portion is disposed to face the rear of the controller when the controller is in the first position.
The cooking appliance according to claim 1, wherein in the second position, the controller is disposed further forward from the case than the front of the door.
The method of claim 9, wherein in a state in which the cam portion is completely housed in the open housing, the distance from the rotation axis of the opening motor to the rear end of the cam portion is 6 to 6 times the distance from the rotation axis of the opening motor to the front end of the cam portion. Cooking appliances that are up to 10 times longer.
The method according to claim 1, wherein the controller moves a first open section starting from the first position by the opening device, and the controller moves in a second open section extending from an end of the first open section to the second position. A cooking appliance that is moved by gravity or external force exerted by the user.
The cooking appliance according to claim 13, wherein the rotation angle of the controller in the second open section is greater than the rotation angle of the controller in the first open section.
The cooking appliance according to claim 1, wherein in the process of moving the controller from the first position to the second position, the controller is rotated around a connection portion connected to the case, and at the same time, the connection portion is moved downward of the case. .
The method according to claim 1, wherein in the process of moving the controller from the first position to the second position, the controller is rotated around a connection portion connected to the case, and at the same time, the connection portion is moved forward and downward of the case. Cooking equipment.
The cooking appliance according to claim 15, wherein the connection part includes a plurality of connection shafts, and the plurality of connection shafts are connected to the controller at different heights at the first position.
The cooking appliance according to claim 1, wherein the opening device, the pair of hinge modules, and the water tank are arranged to be spaced apart from each other within a cavity formed in an upper portion of the case.
The cooking appliance according to claim 1, wherein in the second position, the upper surface of the controller has a height lower than or equal to the lower end of the entrance of the tank chamber.
The cooking appliance according to claim 1, wherein in the first position, the bottom of the controller is positioned higher than the top of the door, and in the second position, the bottom of the controller is positioned lower than the top of the door.
A case with a cavity and a tank chamber formed inside;
a door disposed in front of the case to open and close the cavity;
a water tank discharged to the front of the case through an entrance of the tank chamber and having a water storage space therein;
a controller that moves from a first position that covers the entrance to the tank chamber to a second position that opens the entrance to the tank chamber;
An opening device disposed behind the controller when the controller is in the first position and having a cam portion for moving the controller along a first opening section starting from the first position,
A cooking appliance wherein when the controller is in the first position, the cam portion is disposed between the bottom of the controller and the top of the controller.

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