A refrigerator and an ice-making method thereof

Abstract

The present invention discloses a refrigerator, comprising: a box body, a refrigeration system, an ice maker and a controller. The ice maker includes a position switch, an ice removal motor, an ice storage box and a plurality of ice making grids. The controller is configured to: in response to an ice making operation of the refrigerator, control the ice removal motor to rotate according to a preset first rotation strategy based on the detected level signal of the position switch; wherein, the first rotation strategy includes a forward rotation operation and a reverse rotation operation of the ice removal motor; after the ice maker finishes making ice, control the ice removal motor to rotate according to a preset second rotation strategy based on the detected level signal of the position switch; wherein, the second rotation strategy includes a forward rotation operation and a reverse rotation operation of the ice removal motor. The present invention also discloses a method for making ice in a refrigerator. By adopting the embodiment of the present invention, detecting whether the ice grid is kept horizontal and whether the ice storage box is full can be realized by setting a position switch, thereby reducing the manufacturing cost of the ice maker.

Description

Technical Field

[0001] The present invention relates to the field of ice makers, and particularly to a refrigerator and an ice making method thereof. Background Art

[0002] With the improvement of living standards, the demand of users for refrigerators is gradually increasing, and there are more and more refrigerators integrated with ice makers. Since the ice maker itself has to take into account various functions such as drinking water and ice crushing, its cost is getting higher and higher. The commonly used ice maker at present is provided with two position switches, one for detecting whether the ice making grid is horizontal and the other for detecting whether the ice storage box is full of ice. When starting to make ice, the main control board judges whether the ice making grid is horizontal through the first position switch. After determining that it is horizontal, the main control board will send a signal to open the water valve to start making ice. When the ice cubes are made, the made ice cubes are put into the ice storage box for storage. After the ice storage box is full of ice cubes, it will touch another position switch to remind the main control board that the ice cubes have been made. On the premise that the manufacturing cost of the ice maker is relatively high, setting two position switches on the ice maker will undoubtedly increase the manufacturing cost of the ice maker. Summary of the Invention

[0003] An object of an embodiment of the present invention is to provide a refrigerator and an ice making method thereof, which can realize detecting whether the ice grid remains horizontal and whether the ice storage box is full of storage by setting one position switch, and reduce the manufacturing cost of the ice maker.

[0004] To achieve the above object, an embodiment of the present invention provides a refrigerator, including:

[0005] A box body, which serves as a support structure of the refrigerator and is internally provided with a plurality of storage compartments;

[0006] A refrigeration system, which provides a refrigeration function for the refrigerator;

[0007] An ice maker, including a position switch, an ice discharging motor, an ice storage box and a plurality of ice making grids; wherein, the ice discharging motor is connected to the ice making grid, and the ice discharging motor rotates according to the level signal of the position switch to drive the ice making grid to rotate. The level signal includes a high level signal and a low level signal. The ice making grid is used for making ice cubes, and the ice storage box is used for storing ice cubes;

[0008] The controller is configured to:

[0009] In response to an ice making operation of the refrigerator, control the ice discharging motor to rotate according to a preset first rotation strategy according to the detected level signal of the position switch; wherein, the first rotation strategy includes a forward rotation operation and a reverse rotation operation of the ice discharging motor;

[0010] After the ice maker finishes making ice, control the ice discharging motor to rotate according to a preset second rotation strategy based on the detected level signal of the position switch; wherein, the second rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice discharging motor.

[0011] As an improvement of the above solution, the controlling the ice discharging motor to rotate according to a preset first rotation strategy based on the detected level signal of the position switch includes:

[0012] Control the ice discharging motor to perform a reverse rotation operation according to a preset first operation cycle until the detected level signal of the position switch is a high level signal;

[0013] When the detected level signal of the position switch is a high level signal, control the ice discharging motor to stop and then perform a forward rotation operation within a preset first stop operation cycle;

[0014] Judge whether the level signal of the position switch is a low level signal;

[0015] If so, control the ice discharging motor to stop and then perform a reverse rotation operation within a preset second stop operation cycle until the level signal of the position switch is a high level signal; if not, continue to perform the forward rotation operation until the level signal of the position switch is a low level signal.

[0016] As an improvement of the above solution, the controlling the ice discharging motor to rotate according to a preset second rotation strategy based on the detected level signal of the position switch includes:

[0017] Judge whether the level signal of the position switch is a low level signal;

[0018] If so, control the ice discharging motor to perform a reverse rotation operation until the level signal of the position switch is a high level signal, and then perform a forward rotation operation until the level signal of the position switch is a low level signal; if not, control the ice discharging motor to perform a forward rotation operation until the level signal of the position switch is a low level signal;

[0019] After a preset time, when the level signal of the position switch is a high level signal, determine that the ice storage box is full of ice, and control the ice discharging motor to perform a reverse rotation operation to the initial position.

[0020] As an improvement of the above solution, after controlling the ice discharging motor to perform a reverse rotation operation according to a preset first operation cycle, the controller is further configured to:

[0021] When the level signal of the position switch is a low level signal after exceeding a preset first operation time threshold, determine that the ice maker has a fault.

[0022] To achieve the above object, an embodiment of the present invention further provides a refrigerator ice-making method, which is applicable to an ice maker in a refrigerator. The ice maker includes a position switch, an ice-discharging motor, an ice storage box, and a plurality of ice-making grids. Among them, the ice-discharging motor is connected to the ice-making grids, and the ice-discharging motor rotates according to the level signal of the position switch to drive the ice-making grids to rotate. The level signal includes a high-level signal and a low-level signal. The ice-making grids are used to make ice cubes, and the ice storage box is used to store ice cubes. Then, the refrigerator ice-making method includes:

[0023] In response to the ice-making operation of the refrigerator, control the ice-discharging motor to rotate according to a preset first rotation strategy according to the detected level signal of the position switch. Among them, the first rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice-discharging motor;

[0024] After the ice maker finishes making ice, control the ice-discharging motor to rotate according to a preset second rotation strategy according to the detected level signal of the position switch. Among them, the second rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice-discharging motor.

[0025] As an improvement of the above solution, the controlling the ice-discharging motor to rotate according to a preset first rotation strategy according to the detected level signal of the position switch includes:

[0026] Control the ice-discharging motor to perform a reverse rotation operation according to a preset first operation cycle until the detected level signal of the position switch is a high-level signal;

[0027] When the detected level signal of the position switch is a high-level signal, control the ice-discharging motor to stop after a preset first stop operation cycle and then perform a forward rotation operation;

[0028] Judge whether the level signal of the position switch is a low-level signal;

[0029] If so, control the ice-discharging motor to stop after a preset second stop operation cycle and then perform a reverse rotation operation until the level signal of the position switch is a high-level signal; if not, continue to perform a forward rotation operation until the level signal of the position switch is a low-level signal.

[0030] As an improvement of the above solution, the controlling the ice-discharging motor to rotate according to a preset second rotation strategy according to the detected level signal of the position switch includes:

[0031] Judge whether the level signal of the position switch is a low-level signal;

[0032] If so, control the ice removal motor to perform a reverse operation until the level signal of the position switch is a high-level signal, and then perform a forward operation until the level signal of the position switch is a low-level signal; if not, control the ice removal motor to perform a forward operation until the level signal of the position switch is a low-level signal;

[0033] After a preset time is satisfied, when the level signal of the position switch is a high-level signal, it is determined that the ice storage box is full of ice, and the ice removal motor is controlled to perform a reverse operation to the initial position.

[0034] As an improvement to the above solution, after controlling the ice removal motor to perform a reverse operation according to a preset first operation cycle, the method further includes:

[0035] When the level signal of the position switch is a low-level signal after exceeding a preset first operation time threshold, it is determined that the ice maker has a fault.

[0036] Compared with the prior art, the refrigerator and its ice-making method disclosed in the embodiments of the present invention integrate two position switches in the existing refrigerator into one position switch, saving the manufacturing cost of the ice maker. In addition, the controller controls the ice removal motor to rotate according to a preset first rotation strategy based on the detected level signal of the position switch. During the rotation of the ice removal motor, the controller will continuously receive the level signal sent by the position switch. When the controller receives the high-level signal of the position switch multiple times, it can be determined that the received high-level signal at this time represents the signal that the ice-making grid is horizontal. Similarly, after ice making is completed, the controller controls the ice removal motor to rotate according to a preset second rotation strategy based on the detected level signal of the position switch. During the rotation of the ice removal motor, the controller will continuously receive the level signal sent by the position switch. When the controller receives the high-level signal of the position switch after a preset time is satisfied, it can be determined that the received high-level signal at this time represents the signal that the ice storage box is full of ice. In addition, by repeatedly detecting the high and low levels of the switch and the operation time of the ice removal motor, the confusion between the horizontal detection signal of the ice-making grid and the ice-full signal will not occur. Description of the Drawings

[0037] Figure 1 is a schematic structural diagram of a refrigerator in an embodiment of the present invention;

[0038] Figure 2 is a working flowchart of the refrigerator controller provided in an embodiment of the present invention;

[0039] Figure 3 is another working flowchart of the refrigerator controller provided in an embodiment of the present invention;

[0040] Figure 4 is a flowchart of the refrigerator ice-making method provided in an embodiment of the present invention. Detailed implementation mode

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0042] See Figure 1 , Figure 1 which is a schematic structural diagram of a refrigerator in an embodiment of the present invention. The refrigerator includes:

[0043] A box body 10, which serves as a supporting structure of the refrigerator and is internally provided with a plurality of storage compartments;

[0044] A refrigeration system 20, which provides a refrigeration function for the refrigerator;

[0045] An ice maker 30, including a position switch, an ice discharging motor, an ice storage box and a plurality of ice making grids; wherein, the ice discharging motor is connected to the ice making grids, and the ice discharging motor rotates according to the level signal of the position switch to drive the ice making grids to rotate. The level signal includes a high level signal and a low level signal. The ice making grids are used to make ice cubes, and the ice storage box is used to store ice cubes;

[0046] The controller 40 is configured to:

[0047] In response to the ice making operation of the refrigerator, control the ice discharging motor to rotate according to a preset first rotation strategy according to the detected level signal of the position switch; wherein, the first rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice discharging motor;

[0048] After the ice maker finishes making ice, control the ice discharging motor to rotate according to a preset second rotation strategy according to the detected level signal of the position switch; wherein, the second rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice discharging motor.

[0049] It should be noted that the ice maker further includes a temperature sensor and an ice probe. The user directly connects an external water source, such as tap water, to the reserved water pipe joint outside the refrigerator, and then the water pipe passes through a water valve, which is controlled by a controller 40. When starting to make ice, the position switch 30 is used to determine whether the ice making grid is horizontal. If it is determined to be horizontal, then the controller 40 will send a signal to open the water valve, and then the water directly flows into the ice making grid. After a period of time, according to the temperature value returned by the temperature sensor, it can be judged whether the ice is made. If the ice is made, the controller 30 controls the ice discharging motor to rotate, driving the ice making grid to twist, so that the made ice cubes can be turned into the ice storage box below the refrigerator. When the ice storage box is full of ice, the ice probe will be lifted, and the rotation of the ice probe will trigger the position switch, and the controller 40 will then determine whether the ice is full according to the return signal of this position switch.

[0050] Specifically, in response to the ice making operation of the refrigerator, controlling the ice discharging motor to rotate according to a preset first rotation strategy based on the detected level signal of the position switch includes:

[0051] Controlling the ice discharging motor to perform a reverse rotation operation according to a preset first operation cycle until the detected level signal of the position switch is a high level signal;

[0052] When the detected level signal of the position switch is a high level signal, controlling the ice discharging motor to stop within a preset first stop operation cycle and then perform a forward rotation operation;

[0053] Judging whether the level signal of the position switch is a low level signal;

[0054] If so, controlling the ice discharging motor to stop within a preset second stop operation cycle and then perform a reverse rotation operation until the level signal of the position switch is a high level signal; if not, continuing to perform a forward rotation operation until the level signal of the position switch is a low level signal.

[0055] Further, after controlling the ice discharging motor to perform a reverse rotation operation according to a preset first operation cycle, the controller 40 is further configured to:

[0056] When the level signal of the position switch is a low level signal exceeding a preset first operation time threshold, it is determined that the ice maker 30 has a fault.

[0057] Exemplarily, referring to Figure 2 , when the refrigerator is powered on and preparing to start the ice making mode, the ice maker 30 must be initialized and leveled to ensure that the ice making grid is horizontal. Only by ensuring that the ice making grid is horizontal with the ground can it be ensured that the same amount of water flows into each ice making grid, and finally the ice cubes are of the same size.

[0058] During the initialization leveling process of the ice maker 30, the level signal of the position switch is in a low level signal in the initial state. The ice discharging motor performs a reverse operation according to the first operation cycle T1. The controller determines whether the position switch is at a high level at this time. If it is at a high level, it controls the ice discharging motor to stop within the first stop operation cycle t1 and then perform a forward operation. If it is still in a low level signal, it is necessary to determine whether the ice discharging motor has a fault. At this time, it controls the ice discharging motor to continue to perform a reverse operation. If it does not become a high level signal after exceeding the first operation time threshold D1, it is determined that the ice discharging motor has a fault. During the forward operation of the ice discharging motor, it is determined whether the position switch is at a low level signal. If it is at a low level, it controls the ice discharging motor to stop within the second stop operation cycle t2 and then perform a reverse operation until a high level signal is obtained. If it is still in a high level signal, it is necessary to determine whether the ice discharging motor has a fault. At this time, it controls the ice discharging motor to continue to perform a reverse operation. If it does not become a high level signal after exceeding the second operation time threshold D2, it is determined that the ice discharging motor has a fault. By repeatedly controlling the rotation direction of the ice discharging motor according to the detected level signal of the position switch, it can be determined that the high level signal received at this time indicates that the ice making grid is in a horizontal state.

[0059] Specifically, after the ice maker 30 finishes making ice, controlling the ice discharging motor to rotate according to a preset second rotation strategy according to the detected level signal of the position switch includes:

[0060] Determining whether the level signal of the position switch is a low level signal;

[0061] If so, controlling the ice discharging motor to perform a reverse operation until the level signal of the position switch is a high level signal, and then performing a forward operation until the level signal of the position switch is a low level signal; if not, controlling the ice discharging motor to perform a forward operation until the level signal of the position switch is a low level signal;

[0062] After a preset time, when the level signal of the position switch is a high level signal, it is determined that the ice storage box is full of ice, and the ice discharging motor is controlled to perform a reverse operation to the initial position.

[0063] Exemplarily, see Figure 3, after the ice-making is completed, the ice-turning program needs to be started. The ice-turning program means that after the ice is made, the ice-removing motor drives the ice-making grid to twist, and turns the ice cubes into the lower ice storage box. During this process, first determine whether the position switch is a low-level signal. If it is a low-level signal, control the ice-removing motor to perform a reverse operation until the position switch is a high-level signal, and then perform a forward operation until the position switch is a low-level signal; if it is a high-level signal, control the ice-removing motor to perform a forward operation until the position switch is a low-level signal. Start timing until the preset time is met. This preset time is the ice-making time, and then determine the level signal of the position switch again; when the level signal is high, it is determined that the ice storage box is full of ice cubes, and at this time, it is necessary to control the ice-removing motor to perform a reverse operation to the initial position; when the level signal is a low-level signal, control the ice-removing motor to continue to perform a forward operation until the position switch is high, stop for a period of time and then the ice-removing motor performs a reverse operation, the ice-removing motor continues to perform a reverse operation until the position switch is low, and then continues to turn to high level, start timing for a period of time, and this process is repeated once. When the controller receives the high-level signal of the position switch after meeting the preset time, it can be determined that the received high-level signal at this time represents the signal that the ice-making box is full of ice cubes.

[0064] Further, during the ice-turning process, if the total time of the above two ice-turning operations does not exceed the preset ice-turning threshold time, it is determined that the ice-turning is normal. If it exceeds the preset ice-turning threshold time, it is considered that there is an ice-turning failure, set the failure flag, do not inject water, check for faults, and after troubleshooting, start a new ice-making cycle.

[0065] Compared with the prior art, the refrigerator disclosed in the embodiment of the present invention integrates two position switches in the prior art refrigerator into one position switch, saving the manufacturing cost of the ice maker. In addition, the controller controls the ice-removing motor to rotate according to the preset first rotation strategy based on the detected level signal of the position switch. During the rotation of the ice-removing motor, the controller will continuously receive the level signal sent by the position switch. When the controller receives the high-level signal of the position switch multiple times, it can be determined that the received high-level signal at this time represents the signal that the ice-making grid is kept horizontal. Similarly, after the ice-making is completed, the controller controls the ice-removing motor to rotate according to the preset second rotation strategy based on the detected level signal of the position switch. During the rotation of the ice-removing motor, the controller will continuously receive the level signal sent by the position switch. When the controller receives the high-level signal of the position switch after meeting the preset time, it can be determined that the received high-level signal at this time represents the signal that the ice storage box is full of ice cubes. In addition, by repeatedly detecting the high and low levels of the switch and the running time of the ice-removing motor, the confusion between the ice-making grid horizontal detection signal and the ice-full signal will not be caused.

[0066] See Figure 4 , Figure 4It is a flowchart of the ice-making method provided by an embodiment of the present invention. The ice-making method of the refrigerator is applicable to an ice maker in the refrigerator. The ice maker includes a position switch, an ice-removing motor, an ice storage box, and a plurality of ice-making grids. Among them, the ice-removing motor is connected to the ice-making grids, and the ice-removing motor rotates according to the level signal of the position switch to drive the ice-making grids to rotate. The level signal includes a high-level signal and a low-level signal. The ice-making grids are used to make ice cubes, and the ice storage box is used to store ice cubes. Then, the ice-making method of the refrigerator includes:

[0067] S1. In response to the ice-making operation of the refrigerator, control the ice-removing motor to rotate according to a preset first rotation strategy according to the detected level signal of the position switch. Among them, the first rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice-removing motor;

[0068] S2. After the ice maker finishes making ice, control the ice-removing motor to rotate according to a preset second rotation strategy according to the detected level signal of the position switch. Among them, the second rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice-removing motor.

[0069] Optionally, the controlling the ice-removing motor to rotate according to a preset first rotation strategy according to the detected level signal of the position switch includes:

[0070] Control the ice-removing motor to perform a reverse rotation operation according to a preset first operation cycle until the detected level signal of the position switch is a high-level signal;

[0071] When the detected level signal of the position switch is a high-level signal, control the ice-removing motor to stop for a preset first stop operation cycle and then perform a forward rotation operation;

[0072] Judge whether the level signal of the position switch is a low-level signal;

[0073] If so, control the ice-removing motor to stop for a preset second stop operation cycle and then perform a reverse rotation operation until the level signal of the position switch is a high-level signal; if not, continue to perform a forward rotation operation until the level signal of the position switch is a low-level signal.

[0074] Optionally, the controlling the ice-removing motor to rotate according to a preset second rotation strategy according to the detected level signal of the position switch includes:

[0075] Judge whether the level signal of the position switch is a low-level signal;

[0076] If so, control the ice removal motor to perform a reverse operation until the level signal of the position switch is a high level signal, and then perform a forward operation until the level signal of the position switch is a low level signal; if not, control the ice removal motor to perform a forward operation until the level signal of the position switch is a low level signal;

[0077] After a preset time is satisfied, when the level signal of the position switch is a high level signal, it is determined that the ice storage box is full of ice, and the ice removal motor is controlled to perform a reverse operation to the initial position.

[0078] Optionally, after controlling the ice removal motor to perform a reverse operation according to a preset first operation cycle, the method further includes:

[0079] When the level signal of the position switch is a low level signal exceeding a preset first operation time threshold, it is determined that the ice maker has a fault.

[0080] It should be noted that the ice making method of the refrigerator described in the embodiments of the present invention is implemented by a controller in the refrigerator. Specifically, the working process of the ice making method of the refrigerator can refer to the working process of the controller in the refrigerator described in the above embodiments, which will not be elaborated here.

[0081] Compared with the prior art, in the ice making method of the refrigerator disclosed in the embodiments of the present invention, by integrating two position switches of the existing refrigerator into one position switch, the manufacturing cost of the ice maker is saved. In addition, the controller controls the ice removal motor to rotate according to a preset first rotation strategy based on the detected level signal of the position switch. During the rotation of the ice removal motor, the controller will continuously receive the level signal sent by the position switch. When the controller receives the high level signal of the position switch multiple times, it can be determined that the high level signal received at this time represents the signal that the ice making grid is kept horizontal. Similarly, after ice making is completed, the controller controls the ice removal motor to rotate according to a preset second rotation strategy based on the detected level signal of the position switch. During the rotation of the ice removal motor, the controller will continuously receive the level signal sent by the position switch. When the controller receives the high level signal of the position switch after a preset time is satisfied, it can be determined that the high level signal received at this time represents the signal that the ice storage box is full of ice. In addition, by repeatedly detecting the high and low levels of the switch and the operation time of the ice removal motor, the confusion between the ice making grid horizontal detection signal and the ice full signal will not be caused.

[0082] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A refrigerator, characterized in that, Comprising: A cabinet, which serves as the support structure of the refrigerator and is internally provided with a plurality of storage compartments; A refrigeration system that provides refrigeration function for the refrigerator; An ice maker, including a position switch, an ice ejection motor, an ice storage box and a plurality of ice making grids; wherein, the ice ejection motor is connected to the ice making grids, and the ice ejection motor rotates according to the level signal of the position switch to drive the ice making grids to rotate. The level signal includes a high level signal and a low level signal. The ice making grids are used to make ice cubes, and the ice storage box is used to store ice cubes; The controller is configured to: In response to the ice making operation of the refrigerator, control the ice ejection motor to rotate according to a preset first rotation strategy based on the detected level signal of the position switch; wherein, the first rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice ejection motor; After the ice maker finishes making ice, control the ice ejection motor to rotate according to a preset second rotation strategy based on the detected level signal of the position switch; wherein, the second rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice ejection motor.

2. The refrigerator according to claim 1, characterized in that The controlling the ice ejection motor to rotate according to a preset first rotation strategy based on the detected level signal of the position switch includes: Controlling the ice ejection motor to perform a reverse rotation operation according to a preset first operation cycle until the detected level signal of the position switch is a high level signal; When the detected level signal of the position switch is a high level signal, control the ice ejection motor to stop running within a preset first stop operation cycle and then perform a forward rotation operation; Judging whether the level signal of the position switch is a low level signal; If so, control the ice ejection motor to stop running within a preset second stop operation cycle and then perform a reverse rotation operation until the level signal of the position switch is a high level signal; if not, continue to perform a forward rotation operation until the level signal of the position switch is a low level signal.

3. The refrigerator according to claim 1, wherein, The controlling the ice ejection motor to rotate according to a preset second rotation strategy based on the detected level signal of the position switch includes: Judging whether the level signal of the position switch is a low level signal; If so, control the ice ejection motor to perform a reverse rotation operation until the level signal of the position switch is a high level signal, and then perform a forward rotation operation until the level signal of the position switch is a low level signal; if not, control the ice ejection motor to perform a forward rotation operation until the level signal of the position switch is a low level signal; After a preset time is satisfied, when the level signal of the position switch is a high level signal, it is determined that the ice storage box is full of stored ice cubes, and control the ice ejection motor to perform a reverse rotation operation to the initial position.

4. The refrigerator according to claim 2, wherein, After controlling the ice ejection motor to perform a reverse rotation operation according to a preset first operation cycle, the controller is further configured to: When the level signal of the position switch is a low level signal after exceeding a preset first operation time threshold, it is determined that the ice maker has a fault.

5. A method for making ice in a refrigerator, characterized in that, Applicable to an ice maker in a refrigerator, the ice maker includes a position switch, an ice discharging motor, an ice storage box, and a plurality of ice making grids; wherein, the ice discharging motor is connected to the ice making grids, and the ice discharging motor rotates according to the level signal of the position switch to drive the ice making grids to rotate. The level signal includes a high level signal and a low level signal. The ice making grids are used to make ice cubes, and the ice storage box is used to store ice cubes; then, the ice making method of the refrigerator includes: In response to the ice making operation of the refrigerator, control the ice discharging motor to rotate according to a preset first rotation strategy based on the detected level signal of the position switch; wherein, the first rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice discharging motor; After the ice maker finishes making ice, control the ice discharging motor to rotate according to a preset second rotation strategy based on the detected level signal of the position switch; wherein, the second rotation strategy includes the forward rotation operation and the reverse rotation operation of the ice discharging motor.

6. The ice-making method of a refrigerator according to claim 5, wherein, The controlling the ice discharging motor to rotate according to a preset first rotation strategy based on the detected level signal of the position switch includes: Control the ice discharging motor to perform a reverse rotation operation according to a preset first operation cycle until the detected level signal of the position switch is a high level signal; When the detected level signal of the position switch is a high level signal, control the ice discharging motor to stop running within a preset first stop running cycle and then perform a forward rotation operation; Judge whether the level signal of the position switch is a low level signal; If so, control the ice discharging motor to stop running within a preset second stop running cycle and then perform a reverse rotation operation until the level signal of the position switch is a high level signal; if not, continue to perform a forward rotation operation until the level signal of the position switch is a low level signal.

7. The ice-making method of a refrigerator according to claim 5, characterized in that, The controlling the ice discharging motor to rotate according to a preset second rotation strategy based on the detected level signal of the position switch includes: Judge whether the level signal of the position switch is a low level signal; If so, control the ice discharging motor to perform a reverse rotation operation until the level signal of the position switch is a high level signal, and then perform a forward rotation operation until the level signal of the position switch is a low level signal; if not, control the ice discharging motor to perform a forward rotation operation until the level signal of the position switch is a low level signal; After a preset time is satisfied, when the level signal of the position switch is a high level signal, determine that the ice storage box is full of stored ice cubes, and control the ice discharging motor to perform a reverse rotation operation to the initial position.

8. The ice-making method of a refrigerator according to claim 6, characterized in that, After controlling the ice discharging motor to perform a reverse rotation operation according to a preset first operation cycle, the method further includes: When the level signal of the position switch is a low level signal after exceeding a preset first operation time threshold, determine that the ice maker has a fault.

Images