CN112127743A - Door body driving device and refrigerator - Google Patents

Abstract

The present invention provides a door driving device and a refrigerator. The door driving device is used for driving a door of a device. The door driving device includes a driving mechanism for driving the door to move, and the driving mechanism includes a driving mechanism for driving the door. source, a first transmission member driven by the driving source, and a second transmission member that drives the first transmission member and drives the door body to move, the driving source includes a motor, a push rod, and a transmission connection The transmission body of the motor and the push rod. The driving source of the door body driving device is a push rod device, which can be reasonably used to reduce the development cost.

Description

Door drive device and refrigerator

technical field

The invention relates to a door body driving device for driving a door body to open and close. The invention also relates to a refrigerator, which belongs to the technical field of household equipment and refrigeration.

Background technique

At present, the volume of medium and high-end refrigerators on the market is relatively large, and the weight of the door body and drawer load and the suction force of the door body and door seal are relatively large. More and more users report that the refrigerator door body is not easy to open, especially the refrigerator drawer door body. In response to this problem, an automatic door opening device has appeared, which can automatically open the door body.

The structure of the existing automatic door opening device needs to be further optimized, and the development cost is high.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a door drive device with lower development cost

In order to achieve the above object of the invention, the present invention provides a door body driving device for driving a door body of an equipment, the door body driving device comprises a driving mechanism for driving the movement of the door body, and the driving mechanism comprises a driving source, a A first transmission member driven by the driving source, and a second transmission member that drives the first transmission member and drives the door body to move, the driving source includes a motor, a push rod, and a transmission connection between the motor and the door. The transmission body of the push rod.

As a further improvement of an embodiment of the present invention, the door driving device further includes a sliding rail driven by the driving mechanism, the door is connected to the sliding rail, and the driving mechanism drives the sliding rail to drive the sliding rail. The door body, the second transmission member is fixed relative to the sliding rail.

As a further improvement of an embodiment of the present invention, the first transmission member is a gear, the second transmission member is a rack, and a conversion mechanism is provided between the push rod and the gear, and the conversion mechanism converts all the The translation of the push rod is converted into the rotation of the gear.

As a further improvement of an embodiment of the present invention, the conversion mechanism includes a support portion connected with the push rod, a rotating shaft rotatably coupled with the support portion, and the gear is fixed relative to the rotating shaft.

As a further improvement of an embodiment of the present invention, the first transmission member is a slider, the second transmission member is a claw that can engage with the slider, and the push rod pushes the slider to move linearly.

As a further improvement of an embodiment of the present invention, the drive source is provided with a micro switch linked with the push rod, and when the push rod reaches a specified position, the micro switch controls the motor to stop working.

As a further improvement of an embodiment of the present invention, the trigger point of the micro switch is set at the critical position of on and off.

As a further improvement of an embodiment of the present invention, the drive source is provided with an elastic member connected to the push rod, the push rod pushes the door body to open the door body, and the elastic member resets and closes the door body.

As a further improvement of an embodiment of the present invention, the transmission body is provided with a two-way clutch gear set, and when the device is powered off or the door body is stressed, the two-way clutch gear set is in a slipping state.

Compared with the prior art, the beneficial effect of the present invention is that: the driving source of the door body driving device of the present invention is a push rod device, which can be rationally used and the development cost can be reduced.

Another object of the present invention is to provide a refrigerator, which is provided with any one of the above-mentioned door drive devices.

Compared with the prior art, the beneficial effect of the present invention is that since the door drive device of the present invention can reduce the development cost, the refrigerator of the present invention can also reduce the development cost.

Description of drawings

1 is a partial perspective view of the device provided by the first embodiment of the present invention;

Fig. 2 is the perspective view of the first drive mechanism in the apparatus shown in Fig. 1;

3 is a perspective view of a slide rail and a second driving perspective in the device shown in FIG. 1;

FIG. 4 is another perspective view of the slide rail and the second driving perspective in the device shown in FIG. 1 , wherein the signal detection device is hidden;

Fig. 5 is the perspective view of the signal detection device and part of the second drive mechanism in the equipment shown in Fig. 1;

Fig. 6 is a perspective view of one side slide rail of the device shown in Fig. 1, at this time, the slide rail is in a retracted state;

Figures 7 and 1 are perspective views of one side slide rail of the device shown in Figure 1, where the slide rail is in an unfolded state;

8 is a partial perspective view of the device provided by the second embodiment of the present invention;

FIG. 9 is a perspective view of the slide rail and the drive mechanism of the device shown in FIG. 8 , at this time, the slide rail is in a retracted state;

Fig. 10 is a front view of the slide rail and the drive mechanism of the device shown in Fig. 9, wherein the housing of the drive source is hidden;

Fig. 11 is a front view of the slide rail and the drive mechanism of the device shown in Fig. 8, wherein the housing of the drive source is hidden, at this time, the slide rail is partially unfolded, and the first transmission member and the second transmission member are in engagement and critical state of disengagement;

Fig. 12 is a front view of the slide rail and the drive mechanism of the device shown in Fig. 8, wherein the housing of the drive source is hidden, at this time, the slide rail is fully unfolded, and the first transmission member and the second transmission member are located in the disengaged state;

13 is a partial perspective view of the device provided by the third embodiment of the present invention;

Figure 14 is a front view of the slide rail and the drive mechanism of the equipment shown in Figure 13, at this time, the slide rail is in a retracted state, and the cylindrical body on the slider is matched with the first extension of the guide groove;

Fig. 15 is similar to Fig. 14, the difference is that, in Fig. 15, part of the housing of the guide member and the driving source is hidden;

Figure 16 is a front view of the slide rail and the drive mechanism of the device shown in Figure 13, at this time, the slide rail is partially unfolded; the cylindrical body on the slider is matched with the second extension of the guide groove, and the claws are engaged with the slider. critical state of disengagement;

Fig. 17 is similar to Fig. 16, the difference is that, in Fig. 17, part of the housing of the guide member and the driving source is hidden;

Figure 18 is a front view of the slide rail and the drive mechanism of the device shown in Figure 13, at this time, the slide rail is fully expanded; the slider and the jaw are in a disengaged state;

Fig. 19 is similar to Fig. 16, the difference is that, in Fig. 19, part of the housing of the guide member and the driving source is hidden;

20 is a partial front view of the drive mechanism and the slide rail provided by the fourth embodiment of the present invention;

FIG. 21 is similar to FIG. 20 , the difference is that, in FIG. 21 , part of the casing of the driving source is hidden.

100-equipment; 102-main body; 104-accommodating space; 108-drive mechanism; 110-first drive mechanism; 112-push rod; 114-motor; 116-first two-way clutch gear set; 120-second drive Mechanism; 121-first transmission member; 122-second transmission member; 123-drive source; 124-motor; 125-first gear; 126-rack; 127-second two-way clutch gear set; 130-slide rail; 131-fixed rail; 132-middle rail; 133-upper rail; 134-connecting rod; 142-second gear; 144-encoder; 146-PCB board; 148-signal line.

200-equipment; 208-drive mechanism; 212-push rod; 214-motor; 221-first transmission part; 222-second transmission part; 223-drive source; 225-first gear; 226-rack; 228- 229-second rack; 230 slide rail; 231-fixed rail; 233-upper rail; 280-support part; 281-rotating shaft; 290-micro switch; 291-PCB board.

300-equipment; 308-drive mechanism; 312-push rod; 314-motor; 321-first transmission part; 322-second transmission part; 323-drive source; 330-slide rail; 331-fixed rail; 333-upper 360-guide groove; 361-first extension; 362-second extension; 363-guide; 370-elastic; 371-slider; 372-slide; 373-click; 374-card Slot; 375-cylindrical body; 376-claw; 390-micro switch; 391-PCB board.

412-Push rod; 460-Guide groove; 461-First extension; 462-Second extension; 471-Slider; 473-Clamping piece; 475-Cylinder body; 476-Claw; 490-Micro switch .

Hereinafter, some specific embodiments of the present invention will be described in detail by way of example and not limitation with reference to the accompanying drawings. The same or similar parts or parts are designated by the same reference numerals in the figures. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. For example, some dimensions of structures or parts may be appropriately exaggerated relative to other structures or parts for the convenience of illustration. Therefore, the accompanying drawings are only used to illustrate the present invention. The basic structure of the subject of the application.

Detailed ways

The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present invention.

It should be understood that, in the description of the present invention, the terms "first", "second", etc. are only used for the purpose of description, and should not be construed as indicating or implying relative importance or implying the indicated the number of technical characteristics. Thus, a feature defined as "first", "second" may expressly or implicitly include one or more of that feature.

In the present invention, unless otherwise expressly specified and limited, terms such as "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integration; The connection can also be indirectly connected through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them.

FIG. 1 to FIG. 7 show the device 100 provided by the first embodiment of the present invention, and the door body driving device for driving the door body of the device 100 to move.

Referring to FIG. 1, this embodiment provides a device 100, the device 100 includes a main body 102 and a door (not shown), an open receiving space 104 is formed on the main body 102, and the door can close the receiving space 104 and constitute the device 100 part of the outer surface.

In this embodiment, the device 100 is a refrigerator. Those skilled in the art can imagine that, in addition to refrigerators, other devices 100 with the above features, such as medicine cabinets and wine cabinets, can also use the technical solutions of this embodiment. The same or similar solutions are all covered within the protection scope of the present invention.

In this embodiment, the door body may be a simple door body that closes the accommodation space 104 . It can also be a drawer door body. Or a combination of the two, that is, the door body can close the receiving space 104 and constitute part of the outer surface of the device 100 , and meanwhile, a drawer that moves with the door body is provided in the door body, and the drawer can be separated from the door body. Any solution that is the same as or similar to this embodiment is covered within the protection scope of the present invention.

The device 100 further includes a door driving device, and the door driving device includes a driving mechanism 108 for driving the door to move, so as to drive the door to move, so as to open or close the door, so as to facilitate the user to store things in the accommodating space 104 or from the door. Items are taken out from the storage space 104 .

Taking the refrigerator 100 as an example, the volume of medium and high-end refrigerators currently on the market is relatively large, the door sealing suction of the door body is large, and the load weight of the drawer is also large. More and more users report that the refrigerator door body is not easy to open. Especially the drawer door of the refrigerator.

To effectively open the door, the drive mechanism must provide a large opening force for the door, and the large opening force will cause the elderly and children to be easily knocked down during the door opening process, causing injury.

Preferably in this embodiment, the driving mechanism 108 drives the door to open through the first stroke and the second stroke successively, and the opening force applied by the driving mechanism 108 to the door during the first stroke is greater than that applied by the driving mechanism to the door during the second stroke. door opening force.

The drive mechanism 108 includes a first drive mechanism 110 and a second drive mechanism 120 . The first driving mechanism 110 and the second driving mechanism 120 are arranged at intervals. The first driving mechanism 110 drives the door to open along the first stroke, and the second driving mechanism 120 drives the door to open along the second stroke.

That is to say, during the door opening process, the first driving mechanism 110 acts on the door body before the second driving mechanism 120, that is, the first driving mechanism 110 realizes the first stage driving, and the second driving mechanism 120 realizes the second stage driving. Moreover, in this embodiment, the driving stroke of the first driving mechanism 110 is smaller than the driving stroke of the second driving mechanism 120 . That is to say, the first driving mechanism 110 firstly opens the door by one slit, and the second driving mechanism 120 continues to open the door to a greater extent.

Preferably, in this embodiment, the door opening force applied by the first driving mechanism 110 to the door body is greater than the door opening force applied by the second driving mechanism 120 to the door body.

Therefore, the first driving mechanism 110 can provide a large opening force at the initial stage of the door body opening, so as to overcome the suction force of the door seal and the drawer load to effectively open the door body, and provide a small opening force in the later stage of the door body opening to avoid A user of the device 100, such as an elderly person or a child, may be knocked down during the door opening process.

The magnitude of the door opening force provided by the first driving mechanism 110 and the second driving mechanism 120 can be achieved through power selection, structural design, and the like.

Please refer to FIG. 1 and FIG. 2 , in this embodiment, the first driving mechanism 110 includes a push rod 112 , and the push rod 112 directly pushes the door body.

The push rod 112 directly pushes the door body, so that the force of the first driving mechanism 110 can directly act on the door body most effectively, thereby providing a larger opening force at the initial stage of opening of the door body, thereby effectively opening the door body.

In this embodiment, the push rod 112 of the first driving mechanism 110 pushes the lower middle of the door body to prevent the first driving mechanism 110 from occupying the accommodation space 104. Those skilled in the art can imagine that the position of the first driving mechanism 110 can be determined according to It needs to be set, and any solution that is the same as or similar to this embodiment is covered within the protection scope of the present invention.

The first driving mechanism 110 includes a motor 114 and a transmission body that drives and connects the motor 114 and the push rod 112 .

In this embodiment, the specific structure of the first driving mechanism 110 is the same as the structure of the automatic door opening device disclosed in WO2018121570A1 previously applied by the applicant, and will not be repeated here. The entire contents disclosed in WO2018121570A1 are incorporated by reference into the description of the present application.

The transmission body of the first driving mechanism 110 includes a first two-way clutch gear set 116, and when the device 100 is powered off or the door body is stressed, the first two-way clutch gear set 116 is in a slipping state.

When the refrigerator is suddenly powered off or when the user manually pulls the door, the first two-way clutch gear set 116 is always in a slipping state and the motor does not work. The impact force will damage the motor.

Please refer to Fig. 1, Fig. 3 and Fig. 4. Preferably, in this embodiment, the door drive device includes a slide rail 130, the door body is connected with the slide rail 130, and the second drive mechanism 120 drives the slide rail 130 to drive the door body.

In this embodiment, the door body and the slide rail 130 are connected to one end extending out of the receiving space 104 , so that when the second driving mechanism 120 drives the slide rail 130 to move, the door body opens or closes with the movement of the slide rail 130 .

In this embodiment, the number of the sliding rails 130 is two, and a connecting rod 134 is arranged between the two sliding rails 130, which can make the synchronous movement between the two sliding rails 130 more precise, thereby making the movement of the door body more stable and smooth.

Those skilled in the art can think that, since the door body itself is connected with the two sliding rails 130, the door body itself can also play the role of connecting the two sliding rails 130 and making the two sliding rails 130 move synchronously. Therefore, the connecting rod 134 may not be disposed between the two slide rails 130 , and any solution that is the same as or similar to this embodiment is covered by the protection scope of the present invention.

In this embodiment, the slide rail 130 is a metal slide rail 130, and the connecting rod 134 is a steel shaft, which has higher bearing capacity and longer product life.

In this embodiment, the slide rail 130 is a three-section synchronous slide rail.

The three-section synchronous slide rail 130 includes a fixed rail 131 fixed relative to the device 100 , a middle rail 132 slidably matched with the fixed rail 131 , and an upper rail 133 slidably matched with the middle rail 132 . The door body is connected to one end of the upper rail 133 which can extend out of the receiving space 104 . For the specific structure of the three-section synchronous slide rail, reference may be made to the prior art, which will not be repeated here.

Please refer to FIG. 5 , FIG. 6 and FIG. 7 . Preferably, in this embodiment, the second driving mechanism 120 includes a driving source 123 , a first transmission member 121 driven by the driving source 123 , and a second transmission member 121 in driving cooperation with the first transmission member 121 . The transmission member 122 and the second transmission member 122 are fixed relative to the slide rail 130 .

Therefore, the driving source 123 drives the second transmission member 122 to move through the first transmission member 121, and the movement of the second transmission member 122 drives the relatively fixed slide rail 130 to move, and finally drives the door body to move.

In this embodiment, the second transmission member 122 is fixed relative to the middle rail 132 , the second driving mechanism 120 drives the middle rail 132 to move, the middle rail 132 drives the upper rail 133 to move accordingly, and finally drives the door body to move.

Specifically, the driving source 123 is a motor 124 , the first transmission member 121 is a first gear 125 , the second transmission member 122 is a rack 126 , and the rack 126 is fixed on the middle rail 132 . Thus, the motor 124 drives the first gear 125 to rotate, the first gear 125 rotates to drive the rack 126 to move linearly, the linear motion of the rack 126 drives the middle rail 132 to move linearly, and finally drives the door body to open or close.

In this embodiment, a transmission member such as a worm gear and worm is also provided between the motor 124 and the first transmission member 121. Therefore, the so-called “first transmission member 121” in this embodiment refers to the direct connection with the “second transmission member 122”. engaging parts. Those skilled in the art can think that other transmission parts between the motor 124 and the first transmission part 121 are not limited to worm gears and worms, but can be set as required, and any solution that is the same or similar to this embodiment is covered by the present invention. within the scope of protection.

In this embodiment, the rack 126 is fixed to the back of the slide rail 130 . Therefore, the second driving mechanism 120 does not occupy the space between the two sliding rails 130, which is convenient for storage, and it is also convenient for the drawer to be placed on the two sliding rails 130. The so-called "back side of the slide rail 130" refers to the side surfaces of the two slide rails 130 away from each other.

Preferably, in this embodiment, the second driving mechanism 120 is provided with a second two-way clutch gear set 127. When the device 100 is powered off or the door body is stressed, the second two-way clutch gear set 127 is in a slipping state.

When the device 100 is suddenly powered off or when the user manually pulls the door, the second two-way clutch gear set 127 is in a slipping state, the motor 124 does not work, the user can manually close the door with a small thrust, and the external application is effectively avoided. The impact force will damage the motor 124 .

There are many specific structures of the two-way clutch gear set in the prior art, which can be set by those skilled in the art as required, and will not be repeated here.

As mentioned above, in this embodiment, the number of the slide rails 130 is two. The number of the second drive mechanisms 120 can be set as required, for example, only one second drive mechanism 120 is provided, and the second drive mechanism 120 is driven and matched with the middle rail 132 of the slide rail 130 on either side, which can save costs. Two second driving mechanisms 120 can also be provided, and the two second driving mechanisms 120 are respectively in driving cooperation with the middle rails 132 of the two sliding rails 130, which can make the movement of the drawer more stable. When the second drive mechanism 120 is only provided at one side of the slide rails 130, it is better to set the connecting rod 134 between the two slide rails 130, so that the movement synchronization of the two side slide rails 130 is higher, so that the movement of the drawer is more stable. Smooth and smooth.

In this embodiment, the first driving mechanism 110 realizes the opening of the first stroke of the door body, and the second driving mechanism 120 realizes the opening of the second stroke of the door body. Therefore, in the closed state shown in FIG. 6 , the first gear 125 and the The rack 126 is not engaged. After the first drive mechanism 110 drives the door body to open for a certain distance, the door body and the sliding rail 130 are pulled out for a certain distance, and the first gear 125 and the rack 126 will be engaged and continue to be driven by the driving source 123. Open the door.

Those skilled in the art can imagine that the door driving device only includes the second driving mechanism 120, and it is only necessary to increase the length of the rack 126 on the basis of the second driving mechanism 120 in this embodiment, so that the rack 126 is always in the same position as the second driving mechanism 120. The first gear 125 only needs to be in a meshed state, and any solution that is the same as or similar to this embodiment is covered within the protection scope of the present invention.

In this embodiment, the device 100 or the door body driving device is provided with a control device, and the control device controls the operation of the driving mechanism 108 to control the movement of the door body.

Preferably, in this embodiment, the control device detects whether the door body is subjected to force during the movement process, and if so, the control device controls the drive mechanism 108 to stop working.

During the door opening or closing process, the control device detects that the door body is under force, which may be the movement of the door body is blocked, and the control device controls the drive mechanism 108 to stop working, which can avoid knocking down the elderly and children during the door opening process, or when the door is opened. Avoid pinching the user during the door closing process, thereby avoiding injury.

Preferably, in this embodiment, the door driving device further includes a signal detection device. After the driving mechanism 108 stops working due to the force, the signal detection device sends a force direction signal of the door to the control device, and the control device controls the driving mechanism 108 to move in the reverse direction. , that is, the control device controls the drive mechanism 108 to drive the door body to move in the opposite direction of the force.

The control device controls the driving mechanism 108 to drive the door body to move in the opposite direction of the force to avoid injury, for example, to avoid hitting the elderly and children during the door opening process, and to avoid trapping the user during the door closing process.

In this embodiment, due to the small stroke of the first driving mechanism 110, it mainly drives the door to open in a small range (eg, opening a slit); the second driving mechanism 120 has a large stroke to drive the door to open in a wide range. Therefore, after the operation of the first driving mechanism 110 is completed, the control device detects whether the door body is under force; and when the control device detects that the door body is under force, it mainly controls the second driving mechanism 120 to stop working. Of course, if the stroke of the first driving mechanism 110 is larger, the first driving mechanism 110 can also be controlled by the force of the door body to stop working.

Moreover, since the motor 124 of the second driving mechanism 120 can also be reversed to close the door, the control device controls the second driving mechanism 120 to drive in the opposite direction of the force after receiving the force direction signal of the door. Door movement.

In this embodiment, the signal detection device is connected to the drive mechanism. The signal detection device includes a second gear 142 meshed with the first gear 125 , and an encoder 144 connected with the second gear 142 . The signal is the angle change signal of the angle encoder 144 .

The signal detection device in this embodiment is simple in structure and reasonable in design.

In this embodiment, the angle encoder 144 is a circular grating angle encoder 144 with a simple structure and mature technology. Those skilled in the art can imagine that other encoders can also be used to detect the force direction of the door body and send the door body force direction signal to the control device. Any solution that is the same or similar to this embodiment is covered by the protection scope of the present invention. Inside.

The signal detection device further includes a PCB board 146 connected with the angle encoder 144 and a signal line 148 connected with the PCB board 146 . The signal of the angle encoder 144 is transmitted to the control device through the PCB board 146 and the signal line 148 .

The function of the signal detection device is as follows: when the door body is stressed, the door body is pulled out or retreated a short distance, correspondingly, the rack 126 on the slide rail 130 moves forward or backward for a short distance, and the rack 126 moves to drive the The first gear 125 and the second gear 142 rotate forward or reversely, the angle encoder 144 detects the angle change signal of the second gear 142, and the signal is the force direction signal of the door body, or the signal can be converted into the door body The force direction signal; then, the angle encoder 144 transmits the door force direction signal to the control device through the PCB board 146 and the signal line 148; finally, the control board outputs the control signal, and the control drive source 123 outputs the opposite to the previous motion. The movement is sufficient. For example, before the motor 124 is rotated forward to open the door, at this time, the motor 124 is reversed to close the door. to avoid injury.

It should be noted that, in this embodiment, the motor 124 drives the drive mechanism 108 to open the door body in a forward direction, and the motor 124 drives the drive mechanism 108 to close the door body in a reverse direction. Those skilled in the art can think that, by rationally designing the transmission element, the motor 124 can rotate in reverse to open the door, and the motor 124 can rotate in the forward direction to close the door. Any solution that is the same as or similar to this embodiment is covered within the protection scope of the present invention.

In another variant of this embodiment, the signal detection device sends a force direction signal of the door body to the control device, and the control device controls the driving mechanism 108 to move in the same direction, that is, the control device controls the driving mechanism 108 to move in the same direction as the force direction Drive the door movement.

Its specific structure is the same as the above description, and will not be repeated here, only the control logic of the control device needs to be modified. It should be noted that, since the control device controls the driving mechanism 108 to move in the same direction, the driving mechanism 108 may or may not stop before the control device controls the driving mechanism 108 to drive the door to move in the same direction as the force is applied. Work.

The application scenario of this variant embodiment is that, taking the door opening process as an example, the motor 124 rotates forward to drive the door body to open. During the door opening process, an outward pulling force is applied. The control device determines that the door body is pulled outwards, and the control device continues to drive the motor 124 to rotate forward, thereby continuing to drive the door body to open, so that the door body moves in the same direction as the user expects, which greatly improves the user's high-end experience.

Of course, the principle of the door closing process is the same, except that the rotation direction of the motor 124 is opposite, which is not repeated here.

Preferably, in this embodiment, the control device also detects the time when the door is opened. If the detected time for the door to open exceeds a preset value, the control device sends an automatic door closing signal to the driving mechanism 108, and the driving mechanism 108 drives the door to close.

Therefore, when a misoperation occurs or the user forgets to close the door, the driving mechanism 108 drives the door body to close, which can prevent the cooling effect inside the refrigerator from failing, thereby avoiding waste of electric energy and even corruption of precious ingredients stored by the user.

In this embodiment, since the final output end of the first driving mechanism 110 is the push rod 112 , it can only push the door, but cannot close the door. Therefore, when the detection device detects that the time when the door is opened exceeds the preset value, the control device sends an automatic door closing signal to the second driving mechanism 120, and the second driving mechanism 120 drives the door to close.

Specifically, after the second drive mechanism 120 receives the automatic door closing signal, the motor 124 rotates in reverse, and drives the middle rail 132 of the slide rail 130 to recover automatically through the transmission of the first gear 125 and the rack 126 to automatically close the door.

It should be noted that since the slide rail 130 is provided with a self-locking device, when the slide rail 130 is retracted and the self-locking device is triggered, the first gear 125 and the rack 126 are converted from the meshing state to the disengaging state. The closing stroke is accomplished by the self-locking elastic member of the slide rail 130 .

In this embodiment, the self-locking elastic member of the slide rail 130 is reasonably utilized to shorten the length of the rack 126, and the structural design is ingenious and reasonable.

As mentioned above, the door driving device is provided with a signal detection device including the second gear 142 and the angle encoder 144 . Preferably, in this embodiment, the control device detects that the signal of the signal detection device does not change for a period of time, and the drive mechanism 108 drives the door body to close.

That is to say, during the process of opening or closing the door, if the control device detects that the door body is stressed, after the driving mechanism 108 stops working, if the signal of the signal detection device remains unchanged for a period of time, it means that the door body has not been stressed for a long time, and The door is in a half-open state. At this time, the driving mechanism 108 drives the door to close, which can prevent the cooling effect inside the refrigerator from failing, thereby avoiding waste of electric energy and even corruption of precious ingredients stored by the user.

The door opening process of the door drive device of this embodiment will be described below.

When the door opening button is triggered, the control device sends an instruction to the first drive mechanism 110, and the push rod 112 pushes the door body a certain distance; after the push rod 112 pushes out a certain distance, the first gear 125 and the rack 126 enter the meshing state from the disengaged state.

Then the control device sends an instruction to the second driving mechanism 120, and the second driving mechanism 120 drives the door body to fully open.

After the operation of the first driving mechanism 110 ends, the control device may detect whether the door body is subjected to external force at intervals, and if so, the control device controls the second driving mechanism 120 to stop working.

After the second driving mechanism 120 stops working due to the blocking of the external force, the control device judges the force direction of the door body by receiving the force direction signal of the door body from the signal detection device, and controls the second driving mechanism 120 along the direction opposite to the force direction or Drive the door in the same direction (according to the program preset by the control device).

The control device also detects the opening time of the door and the signal duration of the signal detection device at certain intervals. If the door opening time exceeds a predetermined value or the signal of the signal detection device remains unchanged for a certain period of time, the control device controls the second driving mechanism 120 to close. door body.

Next, the door closing process of the door body driving device of this embodiment will be described again.

When the door closing button is triggered, the control device sends an instruction to the second driving mechanism 120 to perform the door closing action; when the second driving mechanism 120 drives the door body to close to a certain extent, the first gear 125 and the rack 126 are disengaged, and at this time, the slide rail 130 itself When the self-locking device is activated, the door can be closed in the last stroke by the resilience of the elastic member provided on the slide rail 130 , and this stroke is the same as the opening stroke of the first drive mechanism 110 .

The door closing process is the same as the door opening process, and the control device can also detect whether the external force is received and the direction of the external force, and control the second driving mechanism 120 according to a predetermined program. The control device can also detect the door opening time and the signal duration of the signal detection device, and control the second driving mechanism 120 according to a predetermined program. No longer.

Fig. 8 to Fig. 12 show the device 200 provided by the second embodiment of the present invention, and the door body driving device for driving the door body of the device 200 to move.

8 and 9, the device 200, the door body, the slide rail 230, and the connecting rod connecting the slide rail 230 in this embodiment are the same as those in the first embodiment, and will not be repeated.

One of the differences between this embodiment and the first embodiment is that in the first embodiment, the driving mechanism 108 includes a first driving mechanism 110 and a second driving mechanism 120 , the first driving mechanism 110 directly drives the door body, and the second driving mechanism The mechanism 120 is provided on the slide rail 130 side, and drives the slide rail 130 to drive the door body; in this embodiment, the drive mechanism 208 is only provided on the slide rail 230 side, and the door body is driven by driving the slide rail 230 . Of course, whether the driving mechanism 208 is provided only on one side of the slide rail 230 or on both sides of the slide rail 230 is the same as that in the first embodiment, and will not be repeated here.

Referring to FIGS. 10 , 11 and 12 , in this embodiment, the driving mechanism 208 includes a driving source 223 , a first transmission member 221 driven by the driving source 223 , a transmission fit with the first transmission member 221 and fixed on the slide rail 230 on the second transmission member 222.

Preferably, in this embodiment, the driving source 223 includes a motor 214 , a push rod 212 , and a transmission body that drives and connects the motor 214 and the push rod 212 .

In this embodiment, the driving source 223 is similar in structure to the first driving mechanism 110 in the first embodiment, which can save development costs.

Specifically, on the basis of the structure of the first driving mechanism 110 in the first embodiment, the driving source 223 adds a micro switch 290 linked with the connecting rod and a PCB board 291 connected with the micro switch 290 .

The control device collects the switching value of the micro switch 290 through the PCB board 291, and outputs a control signal to control the action of the motor in the driving source 223, and finally realize the automatic opening and closing of the door. Specifically, when the push rod 212 is pushed to the maximum position and returned to the initial position, the switching value of the micro switch 290 will change. The control device detects this change and outputs a control signal to stop the motor.

The first transmission member 221 is a first gear 225 . A conversion mechanism is provided between the push rod 212 and the first gear 225 , and the conversion mechanism converts the translation of the push rod 212 into the rotation of the first gear 225 .

In this embodiment, the conversion mechanism includes a support portion 280 connected with the push rod 212 , and a rotating shaft 281 rotatably coupled with the support portion 280 , and the first gear 225 is fixed on the rotating shaft 281 . Therefore, the support portion 280 drives the rotating shaft 281 and the first gear 225 to rotate along with the linear movement of the push rod 212. The conversion mechanism is simple in structure and low in cost. Those skilled in the art can imagine that other conversion mechanisms can be used to convert the translational motion of the push rod 212 into the rotation of the first gear 225. Any solutions that are the same or similar to this embodiment are covered by the protection of the present invention. within the range.

The second transmission member 222 is a rack, and the rack includes a first rack 228 and a second rack 229 arranged opposite to each other, and the lengths of the first rack 228 and the second rack 229 are equal. The first rack 228 is fixed on the upper rail 233, and the second rack 229 is fixed on the fixed rail 231. As shown in FIG. 10, the first gear 225 is in the closed state simultaneously with the first rack 228 and the second rack 229. mesh.

Therefore, the first gear 225 rotates and drives the first rack 228 and the second rack 229 to translate simultaneously, and the movement stroke of the slide rail 230 driven by the rack is twice the length of the rack. The shorter first rack 228 and the second rack 229 can be set to achieve a longer movement stroke of the slide rail 230, and the structure design is reasonable.

In this embodiment, the lengths of the first rack 228 and the second rack 229 are designed so that the driving stroke of the driving mechanism 208 is smaller than the movement stroke of the slide rail 230.

That is to say, in this embodiment, when the door is opened, the drive mechanism 208 drives the slide rail 230 to move a certain distance, the door is automatically opened for a certain distance, and the subsequent opening of the door is realized by manual pulling by the user.

Therefore, the driving mechanism 208 can provide a large opening force at the initial stage of opening of the door body, thereby overcoming the suction force of the door seal and the load of the drawer to effectively open the door body automatically and solve the problem that the door body is not easy to open. After the door body is opened, the force required for the operation of the rear door is small, and the user can manually operate it. Can save the cost of refrigerator.

Preferably, in this embodiment, the second transmission member 222 and the first transmission member 221 have two matching states. In the first state, the second transmission member 222 engages with the first transmission member 221 and drives the door body to move, and in the second state , the second transmission member 222 is disengaged from the first transmission member 221 .

That is to say, as shown in FIGS. 10 to 11 , in the first state, the driving source 223 drives the sliding rail 230 and the door body to move through the first gear 225 , the first rack 228 and the second rack 229 . Automatically open the door at the initial stage of opening. As shown in FIG. 11 to FIG. 12 , in the second state, the first gear 225 is disengaged from the first rack 228 and the second rack 229 , the driving source 223 can no longer drive the sliding rail 230 and the door to move, and the user can open it manually door body.

In this embodiment, since the driving stroke of the driving mechanism 208 is greater than the driving stroke of the first driving mechanism 110 in the first embodiment, in this embodiment, the first gear 225 , the first rack 228 and the second rack During the engagement process of 229, the control device can also detect whether the door body is subjected to force during the movement process, as in the first embodiment, and if so, the control device controls the drive mechanism 208 to stop the movement. Same as the first embodiment, the door body driving device is provided with a signal detection device 240, the signal detection device 240 sends the door body force direction signal to the control device, and the control device controls the drive mechanism 208 to drive in the opposite or opposite direction of the force force direction. Door movement. No longer. The signal detection apparatus 240 of the second embodiment has the same structure as that of the first embodiment, and will not be described again.

During the meshing process between the first gear 225 and the first rack 228 and the second rack 229 , the control device detects that the time of opening the door exceeds the preset value, and the control device sends the drive mechanism 208 to automatically close the door. signal, the drive mechanism 208 drives the door body to close. The door body driving device is provided with a signal detection device 240, the control device detects that the signal of the signal detection device 240 does not change within a period of time, and the driving mechanism 208 drives the door body to close. No longer.

Similar to the first embodiment, the driving mechanism 208 may be provided with a two-way clutch gear set, and when the device 200 is powered off or the door body is stressed, the two-way clutch gear set is in a slipping state. No longer.

The door opening process of the door body driving device of the present embodiment will be described below.

After the door opening signal is triggered, the motor of the driving mechanism 208 receives the control signal output by the control device, and the motor rotates forward to drive the push rod 212 to push out. The first rack 228 and the second rack 229 move in translation, the slide rail 230 moves in translation, and the door body opens a certain distance.

When the push rod 212 is pushed to the maximum position, the control device detects that the switching value of the microswitch 290 in the drive mechanism 208 changes, and the control device controls the motor to stop working. At this time, the first gear 225 moves to a critical state of disengagement from the first rack 228 .

Then, the user manually pulls the door, and the first gear 225 is disengaged from the first rack 228 until the door is fully opened.

During the meshing process between the first gear 225 and the first rack 228 and the second rack 229, the control device can detect whether the door is under force, the direction of the force, the opening time of the door, etc. at a certain time interval, and perform corresponding operations. Repeat.

The door closing process of the door body driving device of the present embodiment will be described below.

The user manually closes the door. When the door body is closed to a certain extent, the first rack 228 and the first gear 225 are engaged. After the user perceives this state, the user can no longer operate. At the same time, the control device detects the change of the switching value of the micro switch 290, and controls the motor to reverse the direction to close the door. The first gear 225 drives the first rack 228 and the second rack 229 to move until the push rod 212 returns to At the initial position, at this instant, the control device again detects that the switching value of the micro switch 290 has changed, and outputs a control signal to stop the motor and complete the automatic door closing.

During the meshing process between the first gear 225 and the first rack 228 and the second rack 229, the control device can detect whether the door is under force, the direction of the force, the opening time of the door, etc. at a certain time interval, and perform corresponding operations. Repeat.

Variations of the second embodiment will be described below, and hereinafter referred to as the second variation.

The difference between the second modified embodiment and the second embodiment is that: in the second embodiment, the driving stroke of the driving mechanism 208 is smaller than the motion stroke of the slide rail 230; in the second modified embodiment, the driving stroke of the driving mechanism 208 is equal to the sliding rail 230 sport travel.

Specifically, the structural difference between the second modified embodiment and the second embodiment lies in the length of the rack. In the second embodiment, the lengths of the first rack 228 and the second rack 229 are relatively short, and the first rack 228 and the second rack 229 will not be engaged with the first gear 225 during the driving process of the slide rail 230 . transition to a disengaged state. In the second modified embodiment, the lengths of the first rack 228 and the second rack 229 are longer, and the first rack 228 and the second rack 229 are always connected with the first gear during the entire movement stroke of the slide rail 230 . 225 engagement.

Therefore, the driving mechanism 208 can automatically drive the door body to open completely without manual operation by the operator, which is more labor-saving and smarter.

Similar to the first embodiment, in the second variant embodiment, the control device detects whether the door body is under force during the movement process, and if so, the control device controls the driving mechanism 208 to stop working.

The difference between the second variant embodiment and the first embodiment is: in the first embodiment, the control device detects whether the door body is subjected to force during the movement of the door after the operation of the first driving mechanism 110 is completed; in the second variant embodiment, The control device can detect whether the door body is under force during the movement process immediately or at intervals as required. If the force is applied, the control device controls the drive mechanism 208 to stop working.

Similar to the first embodiment, the door body driving device is provided with a signal detection device 240, and the signal detection device 240 sends the door body force direction signal to the control device, and the control device controls the drive mechanism 208 to drive in the opposite or opposite direction of the force force direction. Door movement. No longer.

The structure of the signal detection device 240 of the second modified embodiment is the same as that of the first embodiment, and will not be repeated here.

Similar to the first embodiment, the control device detects that the time that the door is open exceeds a preset value, and the control device sends an automatic door closing signal to the driving mechanism 208, and the driving mechanism 208 drives the door to close. Similarly, the control device detects that the signal of the signal detection device 240 remains unchanged for a period of time, and the drive mechanism 208 drives the door body to close. No longer.

Similar to the first embodiment, the driving mechanism 208 may be provided with a two-way clutch gear set, and when the device 200 is powered off or the door body is stressed, the two-way clutch gear set is in a slipping state. No longer.

The door opening and closing process of the second modified embodiment is simpler than that of the second embodiment, and does not require manual operation by the user, and the whole process is completed by the control device controlling the driving mechanism 208, which will not be repeated.

Figures 13 to 19 show a device 300 provided by a third embodiment of the present invention, and a door drive device for driving the door of the device 300 to move.

The main differences between this embodiment and the door drive device of the second embodiment include:

The first point is that the drive mechanism for closing the door is different. In the second embodiment, the driving mechanism includes a door opening driving mechanism and a door closing driving mechanism. The opening driving mechanism and the door closing driving mechanism have the same structure. The motor rotates forward to open the door, and the motor rotates reversely to close the door. In this embodiment, the driving mechanism includes a door opening driving mechanism and a door closing driving mechanism, and the structure of the door opening driving mechanism and the door closing driving mechanism are different. The door-opening driving mechanism includes a motor, and the door-closing driving mechanism includes an elastic member 370 . Specifically, the rear end of the push rod 312 is connected with an elastic member 370, and the motor rotates forward to realize the door opening. During the door opening process, the push rod 312 drives the elastic member 370 to move, and the elastic member 370 is elongated; during the door closing process, the elastic member 370 restores deformation Pull the push rod to reset to close the door.

Second, the specific structure of the drive mechanism is different. In the driving mechanism of the second embodiment, the first transmission member is a gear, and the second transmission member is a first rack and a second rack that are oppositely arranged; in this embodiment, the first transmission member 321 is a slider 371, and the second transmission member is a The transmission member 322 is a clamping claw 376 .

The drive mechanism 308 of the present embodiment will be specifically described below.

The driving mechanism 308 includes a door opening driving mechanism and a door closing driving mechanism.

The door opening driving mechanism includes a driving source 323, a first transmission member 321 driven by the driving source 323, and a second transmission member 322 which is drivingly matched with the first transmission member 321 and is fixed relative to the door body.

Like the second embodiment, the driving source 323 includes a motor 314, a push rod 312, a transmission body that drives the motor 314 and the push rod 312, a micro switch 390 linked with the link in the transmission body, and a micro switch 390 is connected to the PCB board 391. No longer.

Different from the second embodiment, in this embodiment, the first transmission member 321 is a slider 371 , and the second transmission member 322 is a claw 376 .

The slider 371 is connected with the push rod 312 and is driven by the push rod 312 to translate. The sliding block 371 includes a sliding member 372 and a clamping member 373 which are connected to each other. The sliding member 372 is fixedly connected with the push rod 312, and moves in translation with the push rod 312. The clamping member 373 is pivotally connected with the sliding member 372 , and a clamping slot 374 is formed on the clamping member 373 . The clamping claw 376 is fixed on the upper rail 333 , and the clamping claw 376 can be clamped in the clamping groove 374 or detached from the clamping groove 374 .

That is to say, the second transmission member 322 and the first transmission member 321 have two matching states. In the first state, the second transmission member 322 engages with the first transmission member 321 and drives the door body to move. The second transmission member 322 is disengaged from the first transmission member 321 .

Specifically, in the first state, the claws 376 are inserted into the slots 374 of the slider 371, and the push rod 312 drives the slider 371 and the claws 376 to move accordingly, so that the upper rail 333 moves accordingly, and finally the door body follows sports.

In the second state, the engaging member 373 pivots relative to the sliding member 372 , the claw 376 is disengaged from the slot 374 , the push rod 312 no longer drives the claw 376 , and the user opens and closes the door manually.

The movement stroke of the slider 371 is smaller than the movement stroke of the slide rail 330 . That is, within the movement stroke of the slider 371, the door is automatically opened or closed, and outside the movement range of the slider 371, the door is manually opened or closed by the user.

In order to guide the movement of the sliding block 371, in this embodiment, the door driving device further includes a guide groove 360 that is slidably matched with the sliding block 371. The guide groove 360 includes a first extending section 361 and The second extension 362 . The extension direction of the first extension section 361 is parallel to the extension direction of the slide rail 330 . A cylindrical body 375 , which can slide in the guide groove 360 , is provided on the engaging member 373 of the slider 371 .

In this embodiment, the guide groove 360 is fixed relative to the fixed rail 331 of the slide rail 330 . Specifically, the guide groove 360 is provided on the guide member 363, and the guide member 363 is fixed on the end of the fixed rail 331 away from the door body.

Thus, when the cylindrical body 375 moves in the first extension section 361, the claws 376 engage with the engaging pieces 373 of the slider 371, and the claws 376 move and finally drive the door body to move to realize automatic door opening and closing. When the cylindrical body 375 slides from the first extension section 361 into the second extension section 362 , the engaging member 373 pivots relative to the sliding member 372 , the claw 376 is disengaged from the engaging member 373 , and the push rod 312 no longer drives the claw 376 movement, so that the door movement is no longer driven. The user manually opens and closes the door.

The door closing drive mechanism includes an elastic member 370 .

In this embodiment, the elastic member 370 is connected to one end of the push rod 312 of the door opening driving mechanism away from the sliding block 371 .

The door opening process of the door body driving device of the present embodiment will be described below.

After the door opening signal is triggered, the motor of the driving mechanism 308 receives the control signal output by the control device, and the motor rotates forward to drive the push rod 312 to push out, and the push rod 312 pushes the slider 371, the clamping claw 376, and the upper rail 333 to move. The rod 312 pulls the elastic member 370, and the elastic member 370 is stretched.

When the push rod 312 is pushed to the maximum position, the door is automatically opened for a certain distance. When the control device detects that the switch value of the micro switch 390 changes, the control device controls the motor to stop the action. At this time, the clip 373 of the slider 371 pivots relative to the slider 372 , and the cylindrical body 375 slides in from the first extension section 361 . In the second extension 362, the push rod 312 stays at the maximum position, and the elastic member 370 is also fixed at this deformation position.

Subsequently, the user manually continues to open the door to the desired position.

The door closing process of the door body driving device of the present embodiment will be described below.

The user manually closes the door. When the door is closed to a certain extent, the claw 376 engages with the engaging member 373 of the slider 371 to drive the cylindrical body 375 to slide from the second extension section 362 into the first extension section 361. The elastic member 370 The deformation is recovered and the push rod 312 is pulled to reset, so that the door is automatically closed.

In this embodiment, if the refrigerator door is automatically opened by malfunction or the user does not close the door tightly, the control device detects that the door body is still not closed after the set time is exceeded. Then the control device will send an automatic door closing signal to the driving mechanism 308 , and then the motor will reverse for 1-2 seconds and then stop, and the cylindrical body 375 on the clip 373 of the slider 371 slides from the second extension section 362 into the first extension section 361 , the deformation of the elastic member 370 is restored, and the push rod 312 is pulled to reset, so that the door body is automatically closed.

Therefore, the claws 376 are re-engaged with the engaging members 373 of the slider 371. It may be that when the user closes the door, the door body drives the upper rail 333 to withdraw, thereby driving the claws 376 to engage with the engaging members 373 of the slider 371 again. It is also possible that the control device detects that the time that the door is opened exceeds the preset value, the control device sends an automatic door closing signal to the driving mechanism 308, and then the control device controls the motor to reverse for a period of time (for example, 1 to 2 seconds) and then stop, driving the motor. The claws 376 are re-engaged with the engaging members 373 of the slider 371 .

20 and 21 show a fourth embodiment of the present invention to provide a door body driving device for driving the door body movement of the device.

The main differences between this embodiment and the door drive device of the third embodiment include:

The first point is that the drive mechanism for closing the door is different. In the third embodiment, the driving mechanism includes a door-opening driving mechanism and a door-closing driving mechanism, and the structures of the door-opening driving mechanism and the door-closing driving mechanism are different. The door-opening driving mechanism includes a motor, and the door-closing driving mechanism includes an elastic member. Specifically, the motor rotates forward to realize the door opening. During the door opening process, the push rod drives the elastic member to move, and the elastic member is elongated. During the door closing process, the elastic member restores the deformation and pulls the push rod to reset to realize the door closing. In this embodiment, the driving mechanism includes a door opening driving mechanism and a door closing driving mechanism. The opening driving mechanism and the door closing driving mechanism have the same structure. The motor rotates forward to open the door, and the motor rotates reversely to close the door.

The second point, the role of the micro switch is different.

The functions of the microswitch in the third embodiment and the second embodiment are the same, and the microswitch determines whether the movement of the push rod is in place. In the process of opening the door, when the push rod is pushed in place, the switching value of the micro switch changes, and the control device receives the switching signal of the micro switch, judges that the push rod has been pushed in place, and the control device controls the motor to stop working. During the door closing process, when the push rod returns to the initial position, the switch value of the micro switch changes, and the control device receives the switch signal of the micro switch to determine that the push rod has returned to the initial position, and the control device controls the motor to stop working. .

In this embodiment, the micro switch 490 has two functions: the first function is the same as that of the micro switch in the third embodiment, and is used to determine whether the push rod 412 is in place; the second function: the same as that in the first embodiment The second gear is the same as the angle encoder, and the micro switch 490 is used as a signal detection device for judging the operation trend of the user.

In this embodiment, the trigger point of the micro switch 490 is set at the critical position of on and off. When the user manually opens or closes the door, the micro switch 490 will move from the critical position to the closed or open position. The control device detects this change and determines whether the user's movement trend is to open or close the door.

Specifically, after the user triggers the automatic door opening signal, the motor of the door drive device receives the control signal output by the control device, and the motor rotates forward to drive the push rod 412 to push out. When the push rod 412 is pushed to the specified maximum distance, the control device detects that the micro switch 490 reaches the trigger point of the critical position of on and off, and the control device controls the motor to stop working.

If the user continues to manually pull out the drawer, the sliding block 471 connected to the end of the push rod 412 continues to move forward for a small distance, and the cylindrical body 475 of the sliding block 471 slides into the first extending section 461 of the guide groove 460. inside the second extension section 462 . In the process of the push rod 412 moving forward, it will drive the meshing transmission gear to rotate at a small angle, drive the connecting rod to move, and finally make the switch value of the micro switch 490 change, that is, move from the trigger point to the off position, when When the control device detects that the switching value of the micro switch 490 changes, it will determine that the drawer has been pulled out artificially.

After the user finishes taking the object, the door is manually closed. When the door is closed to a certain extent, the claws 476 are engaged with the clips 473 of the slider 471. The rod 412 is pushed back manually; when the push rod 412 continues to retreat, it drives the cylindrical body 475 to slide from the second extension section 462 into the first extension section 461, and the control device detects once again that the switching value of the micro switch 490 has changed, and judges that When the door needs to be closed, the control device outputs a drive signal, and the motor rotates in reverse to drive the push rod 412 back to the initial position to automatically close the drawer door. When the push rod 412 returns to the initial position, the control device detects that the switching value of the micro switch 490 changes, and outputs a control signal to stop the motor.

It should be understood that although this specification is described in terms of embodiments, not every embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole, and each The technical solutions in the embodiments can also be appropriately combined. For example, in the first embodiment and the second embodiment, the driving source and the transmission mechanism of the driving slide rail can be replaced with each other, and these combinations can be understood by those skilled in the art. other implementations.

The series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Changes should all be included within the protection scope of the present invention.

Claims (10)

1. A door body drive device for driving a door body of a device, the door body drive device comprising a drive mechanism for driving the movement of the door body, characterized in that: the drive mechanism comprises a drive source, which is driven by the drive mechanism. A first transmission member driven by the source, and a second transmission member which is drivingly matched with the first transmission member and drives the movement of the door body, and the driving source includes a motor, a push rod, and a drive connecting the motor and the push rod. transmission body. 2 . The door driving device according to claim 1 , wherein the door driving device further comprises a sliding rail driven by the driving mechanism, the door body is connected with the sliding rail, and the driving mechanism drives the sliding rail. 3 . The sliding rail drives the door body, and the second transmission member is fixed relative to the sliding rail. 3 . The door drive device according to claim 1 , wherein the first transmission member is a gear, the second transmission member is a rack, and a switch is provided between the push rod and the gear. 4 . The conversion mechanism converts the translation of the push rod into the rotation of the gear. 4 . The door drive device according to claim 3 , wherein the conversion mechanism comprises a support portion connected with the push rod, a rotating shaft rotatably connected with the support portion, and the gear is opposite to the support portion. 5 . The shaft is fixed. 5 . The door drive device according to claim 1 , wherein the first transmission member is a slider, the second transmission member is a claw that can be engaged with the slider, and the push rod Push the slider in a linear motion. 6 . The door drive device according to claim 1 , wherein the drive source is provided with a micro switch that is linked with the push rod, and when the push rod reaches a specified position, the micro switch The switch controls the motor to stop working. 7 . The door drive device according to claim 6 , wherein the trigger point of the micro switch is set at the critical position of opening and closing. 8 . 8 . The door drive device according to claim 1 , wherein an elastic member connected to the push rod is provided in the drive source, and the push rod pushes the door body to open the door body, so the The elastic member resets and closes the door body. 9 . The door drive device according to claim 1 , wherein the transmission body is provided with a two-way clutch gear set, and when the device is powered off or the door body is stressed, the two-way clutch gear set in a slippery state. 10. A refrigerator, comprising a door, wherein the refrigerator is provided with the door driving device according to any one of claims 1 to 9.

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