KR20110098091A - How to control refrigerators and freezers - Google Patents

Abstract

The present invention relates to a refrigerator and a method of controlling the refrigerator.
Refrigerator according to an embodiment of the present invention for achieving the above object, the storage compartment is formed; A door for opening and closing the storage compartment; An ice making chamber provided in said storage compartment or door; An ice tray rotatably provided in the ice making chamber and allowing ice to be produced; A driving unit controlling the rotation of the ice tray; An ice storage unit provided below the ice tray and storing ice separated from the ice tray; And a sensor unit for detecting whether ice stored in the ice storage unit has reached a height corresponding to full ice, and when the full ice is detected by the sensor unit, the ice tray rotates forward and additionally ices the ice tray. Rotating the ice tray is characterized in that it is maintained at a predetermined angle.
According to the refrigerator according to the present embodiment, the ice tray remains inverted after ice and can be restored to the initial position after the ice storage is released from ice, so if the ice maker breaks down, the failure position is water supply system or ice The advantage is that you can easily check whether it is a sensor.

Description

{A refrigerator and a control method the same}

An embodiment of the present invention relates to a refrigerator and a method of controlling the refrigerator.

In general, a refrigerator is a device that can keep food fresh for a certain period of time by cooling a storage compartment, that is, a freezer compartment or a refrigerating compartment while repeating a freezing cycle. The refrigeration cycle includes a compressor, a condenser, expansion means and an evaporator.

The refrigerator includes a main body that forms a storage space and a door that selectively shields the main body. A storage is stored in the storage space, and a user may open the door to take out the storage.

In addition, the refrigerator is provided with an ice making device for producing ice and a dispenser device for discharging the ice produced by the ice making device to the outside. Here, the ice maker may be disposed in the refrigerator door.

The ice making apparatus includes an ice tray in which ice is generated from water supplied from a water supply unit, and an ice storage unit in which ice generated in the ice tray is stored. The ice making apparatus may further include an ice sensor that detects that ice is stored in the ice storage unit for a predetermined amount or more.

According to the conventional refrigerator, there is a problem that the ice stored in the ice storage unit interferes with the ice tray in the process of returning to the original position after the ice tray rotatably provided ice. In this case, there has been a problem that the ice comes up on the ice tray.

In addition, if water is not stored in the ice storage unit or if the ice tray is not watered, iced, or iced in a non-frozen state, the problem of the ice maker is in the water supply system. Or it was difficult to determine if there was an ice sensor.

Therefore, when the ice maker breaks down, it is troublesome to disassemble the inside of the ice maker and check whether there is an abnormality of the water supply unit or the ice sensor.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a refrigerator which can easily check the location of the ice making device and its location.

In addition, an object of the present invention is to provide a refrigerator that allows the amount of ice storage stored in the ice storage unit to be increased.

Refrigerator according to an embodiment of the present invention for achieving the above object, the storage compartment is formed; A door for opening and closing the storage compartment; An ice making chamber provided in said storage compartment or door; An ice tray rotatably provided in the ice making chamber and allowing ice to be produced; A driving unit controlling the rotation of the ice tray; An ice storage unit provided below the ice tray and storing ice separated from the ice tray; And a sensor unit for detecting whether ice stored in the ice storage unit has reached a height corresponding to full ice, and when the full ice is detected by the sensor unit, the ice tray rotates forward and additionally ices the ice tray. Rotating the ice tray is characterized in that it is maintained at a predetermined angle.

In another embodiment, a control method of a refrigerator includes: an ice tray disposed at a proper position and supplying water; Generating ice in the ice tray; Detecting whether the ice reservoir is full; If the ice reservoir is full, rotating the ice tray forward so that ice is iced into the ice reservoir; And rotating the ice tray in reverse to maintain the lower end of the ice tray above a predetermined height.

According to another aspect, a control method of a refrigerator includes: an ice tray disposed at an initial position; Detecting whether the ice reservoir is full; If the ice reservoir is full, rotating the ice tray by a predetermined angle; Detecting whether the ice storage of the ice storage is released; Supplying water to the ice tray when the ice storage of the ice storage unit is released; Generating ice in the ice tray; And iced the ice of the ice tray to the ice storage unit.

According to the refrigerator according to the embodiment of the present invention, the ice tray remains in an inverted state after the ice, and can be restored to the initial position after the ice storage of the ice storage is released. Or it is easy to check whether it is an ice sensor.

In addition, the repair can be confirmed by checking the location of the failure as described above has the effect that the reliability of the product can be improved.

In addition, even if it is detected that the ice storage unit is the first full ice, there is an effect that the amount of storage in the ice storage unit can be increased because the additional ice is possible.

In addition, since the cover is configured to shield the lower end of the ice tray, the inspection sensor is not exposed to the outside, thereby preventing the damage of the inspection sensor.

1 is a perspective view of a refrigerator according to a first embodiment of the present invention.
2 is a perspective view illustrating a refrigerator in an open state in a refrigerating compartment door according to a first embodiment of the present invention.
3 is a perspective view of a refrigerating compartment door according to the first embodiment of the present invention.
4 is a perspective view of a refrigerator compartment door from which an ice making assembly according to a first embodiment of the present invention is removed.
5 is an exploded perspective view of the ice making assembly according to the first embodiment of the present invention.
6 is a side view of an ice making assembly according to a first embodiment of the present invention.
7 is a view showing the configuration of an ice tray and an ice bank according to the first embodiment of the present invention.
8 is a view showing a state in a first position for ice tray garbing according to a first embodiment of the present invention.
9 is a view showing an ice tray according to a first embodiment of the present invention in a second position;
10 is a flowchart illustrating a control method of a refrigerator according to a first embodiment of the present invention.
11 is a flowchart illustrating a control method of a refrigerator according to a second embodiment of the present invention.
12 is a flowchart illustrating a control method of a refrigerator according to a third embodiment of the present invention.
13 is a flowchart illustrating a control method of a refrigerator according to a fourth embodiment of the present invention.
14 is a side view of an ice making assembly according to a fifth embodiment of the present invention.

Hereinafter, with reference to the drawings will be described a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.

FIG. 1 is a perspective view of a refrigerator according to a first embodiment of the present invention, and FIG. 2 is a perspective view showing a refrigerator in an open state of a refrigerator compartment door according to a first embodiment of the present invention.

1 and 2, the refrigerator 1 according to the first embodiment of the present invention includes a cabinet 10 forming an external shape and a refrigerator door 11 and 15 movably connected to the cabinet 10. ) Is included.

The cabinet 10 is formed with a storage compartment for storing food. The storage compartment includes a refrigerating compartment 102 and a freezing compartment 104 positioned below the refrigerating compartment 102. The refrigerator compartment 102 and the freezer compartment 104 may be partitioned by the partition 103.

That is, in the present embodiment, as an example, a bottom freeze type refrigerator in which a refrigerating compartment is disposed above the freezing compartment will be described. However, the idea of the present invention is not only the structure of the refrigerator 1, but also a top mount type in which a freezing compartment is formed at an upper side and a refrigerating compartment is formed at a lower side, or a side by side in which a freezing compartment and a refrigerating compartment are provided at left and right sides. by side) is also applicable.

The refrigerator doors 11 and 15 include a refrigerating compartment door 11 for opening and closing the refrigerating compartment 102 and a freezing compartment door 15 for opening and closing the freezing compartment 104.

The refrigerating compartment door 11 includes a plurality of doors arranged from side to side. The plurality of doors may be rotatably coupled to the left and right sides of the cabinet 10.

The freezer compartment door 15 includes a plurality of doors arranged up and down. The plurality of doors may be provided to be pulled out toward the front of the cabinet 10.

The refrigerating compartment door 11 is provided with a dispenser device 20 through which water or ice is taken out. The dispenser device 20 includes a pusher 22 operable by a user to take out water or ice.

3 is a perspective view of the refrigerating compartment door according to the first embodiment of the present invention, and FIG. 4 is a perspective view of the refrigerating compartment door from which the ice making assembly according to the first embodiment of the present invention is removed.

3 and 4, the refrigerating compartment door 11 includes an outer case 111 forming a front appearance and a door liner 112 coupled to the outer case 111. The door liner 112 forms the rear surface of the refrigerating compartment door 11.

The door liner 112 forms an ice compartment 120. An ice making assembly 200 for generating and storing ice is disposed in the ice making chamber 120. The ice making chamber 120 is opened and closed by an ice making door 130. The ice making room door 130 is rotatably connected to the door liner 112 by a hinge 139.

The ice making room door 130 is provided with a handle 140 to be coupled to the door liner 112 while the ice making door 130 is closed with the ice making room 120.

The door liner 112 has a handle engaging portion 128 to which a portion of the handle 140 is coupled. The handle coupling portion 128 receives a portion of the handle 140.

The cabinet 10 includes a main body supply duct 106 for supplying cold air to the ice making chamber 120 and a main body recovery duct 108 for recovering cold air from the ice making chamber 120. The body supply duct 106 and the body recovery duct 108 may be in communication with a space in which an evaporator (not shown) is located.

The refrigerating chamber door 11 has a door supply duct 122 for supplying the cool air of the main body supply duct 106 to the ice making chamber, and the cold air of the ice making chamber 120 to the main body recovery duct 108. A door return duct 124 is included.

The door supply duct 122 and the door recovery duct 124 extend from the outer wall 113 of the door liner 110 to the inner wall 114 forming the ice making chamber 120.

The door supply duct 122 and the door recovery duct 124 are disposed in the vertical direction, and the door supply duct 122 is disposed above the door recovery duct 124. However, in the present embodiment, the position of the door supply duct 122 and the door return duct 124 is not limited.

With the refrigerating compartment door 11 shielding the refrigerating compartment 102, the door supply duct 122 communicates with the body supply duct 106, and the door recovery duct 124 is the body recovery duct ( 108).

The ice making chamber 200 includes a cold air duct 290 for guiding the cold air flowing through the door supply duct 122 to the ice making assembly 200. The cold air duct 290 is formed with a flow path through which cold air flows, and the cold air flowing through the cold air duct 290 is supplied to the ice making assembly 200.

Cold air may be concentrated toward the ice making assembly 200 by the cold air duct 290, thereby enabling rapid generation of ice.

The refrigerating compartment door 11 is provided with a connector 125 for supplying power to the ice making assembly 200. The connector 125 is exposed to the ice making chamber 120. In addition, the refrigerating compartment door 11 is provided with a water supply pipe 126 for supplying water to the ice making assembly 200, particularly the ice tray 210 (see FIG. 5).

The water supply pipe 126 is disposed between the outer case 111 and the door liner 112, and one end thereof passes through the door liner 112 and is positioned above the ice making chamber 120.

An opening 127 through which ice is discharged is formed below the inner wall 114. An ice duct 150 communicating with the opening 127 is disposed below the ice making chamber 120.

Meanwhile, in the present embodiment, the ice making chamber 120 and the ice making assembly 200 are described as being provided in the refrigerating chamber door 11, but the same configuration may be provided inside the refrigerating chamber 102.

5 is an exploded perspective view of the ice making assembly according to the first embodiment of the present invention.

Referring to FIG. 5, the ice making assembly 200 according to the first embodiment of the present invention includes an ice tray 210 defining a space where ice is generated and supporting the generated ice, and the ice tray 210. In order to separate the ice in the drive source 220 for providing power for automatically rotating the ice tray 210 and the gearbox 224 for transmitting the power of the drive source 220 to the ice tray 210 is Included.

The ice tray 210 is provided with a rotation shaft 212 that provides a rotation center of the ice tray 210. The rotating shaft 212 may be coupled to the gear box 224 through the ice tray 210.

When the driving source 220 is operated, the rotational force is transmitted to the rotation shaft 212 through the gear box 224. When the rotating shaft 212 is rotated, the ice tray 210 is rotated in a predetermined direction.

In addition, when water is supplied to the ice tray 210, the ice making assembly 200 is supplied from the cover 230 and the water supply pipe 126 to cover the ice tray 210 to prevent water overflow. Water guide portion 240 for guiding the water to the ice tray 210 is included.

In addition, the ice making assembly 200 includes a support mechanism 250 including a seating portion 215 on which the ice tray 210 is seated, and ice storage for storing the ice separated from the ice tray 210. Ice bank 300 as a "", a ice sensor 300 for sensing the ice of the ice bank 300, and a drive motor 280 selectively connected to the ice bank 300.

In detail, the support mechanism 250 includes a first support part 252 and a second support part 260 coupled to the first support part 252.

The first support part 252 is seated in the ice making chamber 120. The drive motor 280 is mounted on the first support part 252. In addition, an ice opening 253 through which ice discharged from the ice bank 300 passes is formed at a bottom surface of the first support part 252. The ice bank 300 is seated on the first support 252.

On one side of the drive motor 280, a bank coupling portion 285 rotated by the driving force of the drive motor 280 is provided. The bank combiner 285 is coupled to the ice bank 300 and is configured to rotate a crushing member (not shown) provided in the ice bank 300.

When the ice bank 300 is seated on the first support part 252, the driving motor 280 is connected to the ice bank 300. In the present embodiment, the state in which the ice bank 300 is seated on the first support part 252 means a state in which the ice bank 300 is accommodated in the ice making chamber 120.

The ice sensor 270 is installed on the second support part 260 at a position spaced apart from the ice tray 210. In addition, the ice sensor 270 is located below the ice tray 210.

The ice sensor 270 includes a transmitter 271 for transmitting a signal and a receiver 272 spaced apart from the transmitter 271 and receiving a signal from the transmitter 271.

The transmitter 271 and the receiver 272 are positioned in the inner space of the ice bank 300 with the ice bank 300 seated on the first support 252.

In addition, the ice making assembly 200 is provided with an ice making room temperature sensor 245 (see FIG. 6) to sense an internal temperature of the ice making room 120.

6 is a side view of an ice making assembly according to a first embodiment of the present invention, FIG. 7 is a view showing the configuration of an ice tray and an ice bank according to the first embodiment of the present invention, and FIG. 8 is a first view of the present invention. FIG. 9 is a view illustrating a state where the ice tray is in a first position for icing, and FIG. 9 is a view illustrating an ice tray according to the first embodiment of the present invention, in a second position.

6 to 9, in the ice making assembly 200 according to the first embodiment of the present invention, an ice tray 210 and ice tray 210 for generating ice from water supplied from the water supply pipe 126. Rotation axis 212 is provided that provides a center of rotation. The rotating shaft 212 may extend in the longitudinal direction of the ice tray 210.

The rotation shaft 212 includes a first end 212a coupled to the gear box 224 and a second end 212b forming an opposite end of the first end 212a.

The ice tray 210 forms a rotating track 211 in a process of rotating in a predetermined direction. The lower end of the rotary track 211 is formed to be spaced apart by a predetermined distance (g1) from the height corresponding to the full ice of the ice bank 300.

As the predetermined distance g1 is formed, the ice 350 stored in the ice bank 300 is lifted up by the ice tray 210 in the process of restoring the ice tray 210 to its original position after the ice tray 210 is iced. Losing can be prevented.

When the driving force of the drive source 220 is transmitted to the gear box 224, the rotating shaft 212 and the ice tray 210 may be rotated in the counterclockwise direction, as shown in FIG. Here, the counterclockwise direction is referred to as "forward rotation direction".

At this time, the first end 212a is rotated by a first angle corresponding to the driving force of the driving source 220. Thus, a predetermined portion of the ice tray 210 adjacent to the first end 212a may be rotated by the first angle.

However, a predetermined portion of the ice tray 210 adjacent to the second end 212a is rotated at an angle smaller than the first angle (second angle) while interfering with the stopper 218.

Due to the difference in size between the first and second angles, the ice tray 210 is twisted. In this process, the ice generated in the ice tray 210 is dropped and stored in the ice bank 300.

The ice tray 210 may be moved in a state in which the inside of the ice bank 300 is full. This is called an "additional ebbing" operation.

As described above, since a spaced distance g1 is formed between the rotational track 211 and the ice level, interference may not occur between the ice and the ice tray 210 even if ice is additionally iced. By such a control, there is an effect that the amount of ice storage can be increased.

After the ice tray 210 is finished, the ice tray 210 is rotated in a direction opposite to the forward rotation direction (clockwise, reverse rotation), thereby releasing the torsion phenomenon. That is, a predetermined portion of the ice tray 210 that has been interfered with the stopper 218 is spaced apart from the stopper 218 so that the torsional load in the ice tray 210 is released (no load).

In addition, in the state in which the ice tray 210 is reversely rotated by a predetermined angle, driving of the driving source 220 is stopped, whereby the position of the ice tray 210 may be maintained. That is, the ice tray 210 may be waited at a predetermined position.

At this time, the angle formed by the horizontal line L1 and the line L2 extending along the upper surface of the ice tray 210 in the state in which the ice tray 210 is reversely rotated is α as shown in FIG. 9. Form.

When the α is 180 °, the ice tray 210 is completely inverted. When the α is 0 °, the ice tray 210 is in its original position as shown in FIG. Corresponds to

Here, α may be maintained at a value of 90 ° or more. If the α maintains an angle of less than 90 ° while the inside of the ice bank 300 is full, the ice 350 stored in the ice bank 300 is moved by the ice tray 210. Problems with spreading may occur.

Here, the upper limit of α will be formed at an angle at which the torsion of the ice tray 210 does not occur. That is, the α may be formed in a range where no torsional load occurs in the ice tray 210.

In this case, the ice tray 210 may be at a position higher than the lowermost end of the rotational track 211 of the ice tray 210. As a result, when the ice tray 210 is reversely rotated, the lower end of the ice tray 210 is maintained above the lowermost end of the rotation track 211.

On the other hand, in the state where the ice tray 210 is reversely rotated and waited, when the ice bank 300 is completely freed, the ice tray 210 is restored to an initial position, and processes of water supply, ice making, and ice breaking are performed. Could be.

If the ice tray 210 is in a reverse rotation state and is in a standby state and a failure occurs in the ice making assembly 200 and no ice is stored in the ice bank 300, the ice tray 210 may be broken. It may be judged.

Another embodiment is proposed.

In the present embodiment, the ice tray 210 has been described by the action of twisting, but the present invention is not necessarily limited thereto, and an ice heater is provided inside the ice tray 210. It may be configured such that the ice is made by the heating of the ice heater.

10 is a flowchart illustrating a control method of a refrigerator according to a first embodiment of the present invention.

Referring to FIG. 10, when the refrigerator is turned on and the refrigeration cycle is driven, the ice making system of the ice making assembly 200 is initialized (S11 and S12).

As the ice making system is initialized, the ice tray 210 is supplied with water from the water supply pipe 126, and is supplied with cold air to make ice (S13, S14).

When ice is formed in the ice tray 210, the ice bank 300, that is, the “ice storage unit” is primarily sensed whether the ice tray 210 is filled with ice. If the ice bank 300 is full, as shown in Figure 8, the ice tray 210 is rotated forward and the ice (additional ice) is made.

As described above, since a predetermined distance g1 is formed between the lower end of the ice tray 210 and the ice level of the ice bank 300, the ice tray 210 even when the ice bank 300 is full. May further be obtained. By this operation, the amount of storage in the ice bank 300 can be increased.

After the further ice of the ice tray 210 is made, as shown in FIG. 9, the ice tray 210 is maintained (standby) at a predetermined position while rotating in reverse. On the other hand, if the ice bank 300 is not full, the process returns to step S13 (S17, S18).

If a problem occurs in the ice making system in this state and the ice tray 210 is still waiting for the reverse rotation even though the ice is not iced in the ice bank 300, this may indicate an abnormality in the ice sensor 270. It can be judged that there is.

In the state where the ice tray 210 is waiting for the reverse rotation, it is secondarily detected whether the ice bank 300 is full (S19). If the ice bank 300 is full, the process returns to step S19 and waits until the ice bank 300 is completely frozen.

On the other hand, when the full ice of the ice bank 300 is released, for example, when the user pulls out ice and the full ice is released, the ice tray 210 returns to the initial position as shown in FIG. 7. do.

Then, water supply and ice making are performed on the ice tray 210, and the process of icing on the ice bank 300 may be repeated (S20, S21, and S22).

If the ice tray 210 is in the initial position, a problem occurs in the ice making system and even though the ice is not filled in the ice bank 300, the water supply and ice making of the ice tray 210 is not performed. If not, it may be determined that there is an abnormality in the water supply system including the water supply pipe 216.

11 is a flowchart illustrating a control method of a refrigerator according to a second embodiment of the present invention.

Referring to FIG. 11, when the refrigerator is turned on and the refrigeration cycle is driven, the ice making system of the ice making assembly 200 is initialized (S31 and S32).

As the ice making system is initialized, the ice tray 210 is supplied with water from the water supply pipe 126, and is supplied with cold air to make ice (S33, S34).

When ice is formed in the ice tray 210, the ice bank 300, that is, the “ice storage unit” is primarily sensed whether the ice tray 210 is filled with ice. When the ice bank 300 is full, the ice tray 210 is rotated in one direction and waited at a predetermined position (one-way rotation and standby).

Here, the state in which the ice tray 210 is rotated in one direction may correspond to a state in which a torsion load is rotated by a predetermined position (reverse rotation state) as shown in FIG. 9.

That is, in the state where ice is iced on the ice tray 210, the point in which the ice tray 210 is waited to rotate in one direction is different from that of the first embodiment (S35, S36, S37).

On the other hand, if the ice bank 300 is not full or if the ice is not full, the ice tray 210 is returned to the initial position as shown in FIG. 7 (S38).

Then, after the ice in the ice tray 210 is iced, water supply and ice-making are performed again (S39 and S40).

If a problem occurs in the ice making system and the ice tray 210 continues to rotate and wait in one direction even though the ice bank 300 is not iced, this indicates that the ice sensor 270 is abnormal. Can be judged.

On the other hand, if a problem occurs in the ice making system and the ice tray 210 is still in the initial position even though the ice is not iced in the ice bank 300, it may be determined that there is an abnormality in the water supply system. .

12 is a flowchart illustrating a control method of a refrigerator according to a third embodiment of the present invention.

Referring to FIG. 12, it is detected whether or not the ice bank 300 is initially iced while the refrigerator is turned on and the refrigeration cycle is driven (initial ice is detected). For example, when the refrigerator is turned off after being turned off due to a power failure lamp, it is determined whether the ice bank 300 is full before the refrigerator is turned off.

In this case, an EEPROM memory may be mounted in the controller (not shown) that controls the operation of the refrigerator. The EEPROM memory may store certain information before being turned off even if the refrigerator is turned on again after being turned off.

In other words, in the present embodiment, the detection of whether the initial full ice may be determined by the information stored in the EEPROM (S51, 52).

If the ice bank 300 is not full, after watering and deicing the ice tray 210, the ice sensor 300 primarily detects whether the ice bank 300 is full (S54, S55, S56).

When the ice bank 300 is full, the ice tray 210 is rotated forward to further ice the ice (S59). On the other hand, when the ice bank 300 is not full, the ice tray 210 is moved to the initial position after the ice tray 210 is iced (S57, S58).

On the other hand, in step S53, if the ice is made inside the ice bank 300, the ice tray 210 is rotated forward and after the ice operation, and then again rotates to stand at a predetermined position.

However, if ice is iced on the ice tray 210, additional ice will be made of ice, and if ice is not iced, ice will not be further iced (S59, S60).

After performing the forward rotation and reverse rotation standby operation of the ice tray 210, it is secondarily detects whether or not the ice bank 300 is full of ice (S61).

If the ice bank 300 is in the full ice state, the process returns to step S61 and waits for the ice bank 300 to be unfrozen. However, if the ice of the ice bank 300 is released, the ice tray 210 is restored to the initial position and the water supply and ice making operations are performed (S62, S63, S64).

As described in the first and second embodiments, in the present embodiment, when a problem occurs in the ice making system, the position where the abnormality occurs depending on whether the position of the ice tray 210 is in the reverse rotation standby state or the initial position state. It will be easy to figure out.

13 is a flowchart illustrating a control method of a refrigerator according to a fourth embodiment of the present invention.

When the refrigerator is turned on and the refrigeration cycle is driven, the ice making system of the ice making assembly 200 is initialized (S71 and S72).

When the ice making system is initialized, it is detected whether the external ice making of the ice making assembly 200 is performed (S73). Here, the term “outer ice” may be defined as an open state of the ice making room door 130.

When the ice compartment door 130 is opened, the detection result of the ice sensor 270 may be misjudged by natural light outside the refrigerator.

If the ice making assembly 200 is externally iced, the process returns to step S73 and waits until the external ice is released (S74).

On the other hand, if the ice making assembly 200 is not externally iced, whether or not the ice bank 300 is internally full is detected. Here, the term "internal ice" is a term referring to general ice, which is different from the external ice, described in the first to third embodiments, and may be defined as ice that is detected by the ice sensor 270 (S75). .

When the ice bank 300 has been fully frozen inside, the ice tray 210 is rotated and waited in one direction. This corresponds to the operation described in step S37 of the second embodiment. On the other hand, if the ice bank 300 has not been internally iced, the process moves to step S81 and water supply and ice making operations of the ice tray 210 are performed (S76 and S77).

In the state in which the ice tray 210 is rotated and waited in one direction, whether the external ice or the internal ice of the ice bank 300 is detected again (S78).

If the ice bank 300 is externally or internally immersed, the ice tray 210 remains in a one-way rotation and in a standby state. However, if the ice bank 300 is released from full ice, the ice tray 210 is returned to the initial position (S79, S80).

After the ice tray 210 is returned to the initial position, the ice tray 210 is subjected to a water supply and an ice making operation, and an ice is performed (S81 and S82).

Meanwhile, in the ice making system, whether the ice bank 300 is "released internally" is detected using the ice sensor 270 at intervals of about 2 minutes (preset time period). When the ice tray 210 is iced, whether or not the ice bank 300 is iced by using the ice sensor 270 is once again checked.

At this time, an error may occur when a time point for checking whether or not the internal freezing is performed after the ice and the detection time of the 2-minute period does not coincide. Therefore, after the ice is performed in step S82, the ice making system may be initialized, that is, the preset time period may be initialized (S83).

Of course, after the ice making system is initialized, the ice making and ice-making operations of the ice tray 210 may be repeatedly performed.

14 is a side view of an ice making assembly according to a fifth embodiment of the present invention.

The ice making assembly 200 according to the fifth embodiment of the present invention includes a cover 230 that covers the ice tray 210 to prevent water overflow when water is supplied to the ice tray 210. .

The ice tray 210 includes an ice generator 210a in which water is supplied to generate ice. The ice generator 210a may be defined as a recessed space downward so that the ice can be stably supported.

The ice generator 210a is provided with an ice sensor 219 for checking whether the material stored in the ice tray 210 is water or ice. If the ice sensor 219 detects that ice is stored in the ice tray 210, ice may be obtained.

The cover 230 extends to the lower side of the lower end of the ice generator 210a in order to prevent the detection sensor 219 from being exposed to the outside. That is, the cover 230 may extend downward to completely cover the ice generator 210a and the ice sensor 219.

As such, since the cover 230 completely shields the detection sensor 219, the detection sensor 219 may be prevented from being damaged by a user's operation or an external environment.

Another embodiment is proposed.

In the present exemplary embodiment, the cover 230 extends downward to shield the sensing sensor 219. Alternatively, an upper end of the ice bank 300 is further extended upward to detect the sensing sensor 219. It may be configured to shield the.

11: refrigerator door 120: ice-making room
130: ice making room door 200: ice making assembly
210: ice tray 300: ice bank

Claims (13)

A storage room in which a storage space is formed;
A door for opening and closing the storage compartment;
An ice making chamber provided in said storage compartment or door;
An ice tray rotatably provided in the ice making chamber and allowing ice to be produced;
A driving unit controlling the rotation of the ice tray;
An ice storage unit provided below the ice tray and storing ice separated from the ice tray; And
It includes a sensor unit for detecting whether the ice stored in the ice storage unit has reached a height corresponding to the full ice,
The driving unit,
When the ice is detected by the sensor unit, the ice tray is rotated forward and further iced, and then the ice tray is rotated in reverse to maintain the ice tray at a predetermined angle. The method of claim 1,
When it is detected that the ice storage of the ice storage is released,
The drive unit is characterized in that the refrigerator to rotate the ice tray to the initial position. The method of claim 1,
An ice sensor to detect whether water stored in the ice tray is in an ice state; And
The refrigerator further comprises a cover for preventing water overflow of the ice tray and shielding the ice sensor. The method of claim 1,
The preset angle is,
And the ice tray is set at a position higher than a lowermost end of the rotational track of the ice tray. The method of claim 1,
Refrigeration in the ice tray, characterized in that performed by the torsion action or the heating of the ice heater. An ice tray is disposed at a proper position and water supply is made;
Generating ice in the ice tray;
Detecting whether the ice reservoir is full;
If the ice reservoir is full, rotating the ice tray forward so that ice is iced into the ice reservoir; And
And rotating the ice tray in a reverse direction so that a lower end of the ice tray is maintained above a predetermined height. The method according to claim 6,
In the state where the lower end of the ice tray is maintained above a predetermined height,
And detecting whether the ice storage of the ice storage is released. The method of claim 7, wherein
And when the ice storage of the ice storage unit is released, the ice tray further includes a step of restoring the ice tray to an initial position where water can be supplied. Placing the ice tray in an initial position;
Detecting whether the ice reservoir is full;
If the ice reservoir is full, rotating the ice tray by a predetermined angle;
Detecting whether the ice storage of the ice storage is released;
Supplying water to the ice tray when the ice storage of the ice storage unit is released;
Generating ice in the ice tray; And
And freezing ice of the ice tray to the ice storage unit. The method of claim 9,
The preset angle is,
The control method of the refrigerator, characterized in that the ice tray is set to a position higher than the lowest end of the rotational trajectory of the ice tray. The method of claim 9,
An ice making room door for shielding one side of the ice storage unit is further included.
In determining whether the ice storage unit is full of ice,
Determination of whether or not the external ice sheet according to the opening of the ice-making chamber door; And
The control method of the refrigerator including the determination of whether the inside of the ice storage unit ice is kept above a predetermined height. The method of claim 11,
Determination of whether or not to freeze the ice storage unit,
And a control method of the refrigerator to determine whether the outer ice and the inner ice are released. The method of claim 11,
The release of the internal ice is determined at a predetermined time period,
And after the ice of the ice tray is iced, the time period is initialized.

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