Refrigerator, ice maker and ice making control method

Abstract

The present invention discloses a refrigerator, an ice maker, and an ice-making control method. The refrigerator is equipped with an ice maker and a temperature sensor. The ice maker includes several detachable ice boxes with different ice cube shapes. The temperature sensor is installed in different positions on different ice boxes. In response to a preset ice-making instruction, the temperature of the ice cube is obtained in real time; a preset water injection device is controlled to inject a preset amount of water into the current ice box; based on the change in the temperature of the ice cube before and after water injection, the installation position of the temperature sensor is determined, and then the target ice cube shape is determined; based on the correspondence between the preset ice cube shape and the ice-making operating parameters, the ice-making operating parameters corresponding to the target ice cube shape are determined, and the ice maker is controlled to operate according to the ice-making operating parameters. By adopting the present invention, ice cubes of different shapes can be effectively made according to the needs of the user, and the appropriate ice-making conditions can be intelligently matched according to the shape of the ice cube to meet the needs of the user.

Description

Technical Field

[0001] The present invention relates to the technical field of ice making control, and in particular to a refrigerator, an ice maker and an ice making control method. Background Art

[0002] A refrigerator is a household appliance that uses a refrigeration cycle to refrigerate and / or freeze food. With increasingly diverse user needs, quickly making ice has become a crucial function for refrigerators, in addition to preserving food. Consequently, refrigerators equipped with ice makers are in high demand in the high-end export market. An ice maker is a refrigeration machine that cools water through an evaporator in a refrigeration system to produce ice. Using water as the raw material, ice is produced when powered on.

[0003] The shape and size of ice cubes produced by an ice maker are determined by the ice tray. Different shapes and sizes of ice cubes require different ice-making control methods. Existing home ice makers typically have fixed ice shapes and corresponding control programs set by the manufacturer. This prevents users from freely selecting ice cube shapes and fails to meet their diverse preferences and needs. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a refrigerator, an ice maker, and an ice making control method, which can effectively make ice cubes of different shapes according to user needs, and can intelligently match appropriate ice making conditions according to the shape of the ice cubes to meet user needs.

[0005] To achieve the above object, an embodiment of the present invention provides a refrigerator, comprising:

[0006] An ice maker equipped with several detachable ice boxes with different ice tray shapes;

[0007] The temperature sensor is used to detect the temperature of the ice cube tray and is installed in different locations on different ice making boxes;

[0008] Controller for:

[0009] In response to a preset ice-making instruction, obtaining the temperature of the ice tray in real time;

[0010] Controlling a preset water injection device to inject a preset amount of water into the current ice making box;

[0011] determining an installation position of the temperature sensor according to a change in the temperature of the ice tray before and after water injection;

[0012] determining, according to the installation position, a shape of ice trays of the current ice making box as a target shape of ice trays;

[0013] According to the correspondence between the preset ice cube shape and the ice making operation parameter, the ice making operation parameter corresponding to the target ice cube shape is determined, and the ice making machine is controlled to operate according to the ice making operation parameter.

[0014] As a preferred embodiment, determining the installation position of the temperature sensor according to the change in the temperature of the ice cube tray before and after water injection specifically includes:

[0015] After controlling a preset water injection device to inject a preset amount of water into the current ice making box, calculating a temperature difference between the temperature of the ice cube tray before the water injection and the temperature of the ice cube tray after the water injection as a target temperature difference;

[0016] Determining the installation position corresponding to the target temperature difference according to a preset correspondence between the temperature difference and the installation position, and obtaining the installation position of the temperature sensor on the current ice making box;

[0017] Among them, when the temperature sensor is installed at different positions on the ice box, the sensing contact area with the water in the ice tray of the ice box is different, and in the corresponding relationship between the preset temperature difference and the installation position, the larger the sensing contact area corresponding to the installation position, the greater the temperature difference.

[0018] As a preferred embodiment, the ice making operation parameters include water injection amount and ice making time;

[0019] Then, determining the ice making operating parameters corresponding to the target ice cube shape according to the preset correspondence between the ice cube shape and the ice making operating parameters, and controlling the ice making machine to operate according to the ice making operating parameters, specifically includes:

[0020] According to a preset correspondence between the ice tray shape and the water injection amount, determining the water injection amount corresponding to the target ice tray shape as the target water injection amount;

[0021] According to the preset correspondence between the ice tray shape and the ice making time, determining the ice making time corresponding to the target ice tray shape as the target ice making time;

[0022] Controlling the water injection device to inject the target amount of water into the current ice making box;

[0023] After the target water injection amount is completed, controlling a preset refrigeration device to perform a refrigeration operation on the ice making box;

[0024] After the cooling operation is performed for the target ice-making time, the refrigeration device is controlled to stop performing the cooling operation.

[0025] As a preferred embodiment, the ice cube shapes of the different ice making boxes correspond to different ice cube volumes; then, in the correspondence between the preset ice cube shape and the water injection amount, the water injection amount is positively correlated with the ice cube volume corresponding to the target ice cube shape; and in the correspondence between the preset ice cube shape and the ice making time, the ice making time is positively correlated with the ice cube volume corresponding to the target ice cube shape.

[0026] As a preferred embodiment, the shapes of the ice trays include square and crescent shapes; wherein, for the ice making box with the square-shaped ice trays, the ice trays are arranged in two rows, and the temperature sensor is arranged in the gap between the bottoms of the two rows of ice trays; for the ice making box with the crescent-shaped ice trays, the ice trays are arranged in a single row, and the temperature sensor is arranged at the side of one end of the single row of ice trays.

[0027] An embodiment of the present invention further provides an ice making machine, comprising:

[0028] The ice maker body is equipped with several detachable ice boxes with different ice tray shapes;

[0029] The temperature sensor is used to detect the temperature of the ice cube tray and is installed in different locations on different ice making boxes;

[0030] Controller for:

[0031] In response to a preset ice-making instruction, obtaining the temperature of the ice tray in real time;

[0032] Controlling a preset water injection device to inject a preset amount of water into the current ice making box;

[0033] determining an installation position of the temperature sensor according to a change in the temperature of the ice tray before and after water injection;

[0034] determining, according to the installation position, a shape of ice trays of the current ice making box as a target shape of ice trays;

[0035] According to the correspondence between the preset ice cube shape and the ice making operation parameter, the ice making operation parameter corresponding to the target ice cube shape is determined, and the ice making machine is controlled to operate according to the ice making operation parameter.

[0036] As a preferred embodiment, determining the installation position of the temperature sensor according to the change in the temperature of the ice cube tray before and after water injection specifically includes:

[0037] After controlling a preset water injection device to inject a preset amount of water into the current ice making box, calculating a temperature difference between the temperature of the ice cube tray before the water injection and the temperature of the ice cube tray after the water injection as a target temperature difference;

[0038] Determining the installation position corresponding to the target temperature difference according to a preset correspondence between the temperature difference and the installation position, and obtaining the installation position of the temperature sensor on the current ice making box;

[0039] Among them, when the temperature sensor is installed at different positions on the ice box, the sensing contact area with the water in the ice tray of the ice box is different, and in the corresponding relationship between the preset temperature difference and the installation position, the larger the sensing contact area corresponding to the installation position, the greater the temperature difference.

[0040] As a preferred embodiment, the ice making operation parameters include water injection amount and ice making time; the ice cube shapes of different ice making boxes correspond to different ice cube volumes;

[0041] Then, determining the ice making operating parameters corresponding to the target ice cube shape according to the preset correspondence between the ice cube shape and the ice making operating parameters, so as to control the ice making machine to operate according to the ice making operating parameters, specifically includes:

[0042] According to a preset correspondence between the ice tray shape and the water injection amount, determining the water injection amount corresponding to the target ice tray shape as the target water injection amount;

[0043] According to the preset correspondence between the ice tray shape and the ice making time, determining the ice making time corresponding to the target ice tray shape as the target ice making time;

[0044] Controlling the water injection device to inject the target amount of water into the current ice making box;

[0045] After the target water injection amount is completed, controlling a preset refrigeration device to perform a refrigeration operation on the ice making box;

[0046] After the refrigeration operation reaches the target ice-making time, controlling the refrigeration device to stop performing the refrigeration operation;

[0047] Among them, in the correspondence between the preset ice tray shape and the water injection amount, the water injection amount is positively correlated with the ice tray volume corresponding to the target ice tray shape; and in the correspondence between the preset ice tray shape and the ice making time, the ice making time is positively correlated with the ice tray volume corresponding to the target ice tray shape.

[0048] As a preferred embodiment, the shapes of the ice trays include square and crescent shapes; wherein, for the ice making box with the square-shaped ice trays, the ice trays are arranged in two rows, and the temperature sensor is arranged in the gap between the bottoms of the two rows of ice trays; for the ice making box with the crescent-shaped ice trays, the ice trays are arranged in a single row, and the temperature sensor is arranged at the side of one end of the single row of ice trays.

[0049] An embodiment of the present invention further provides an ice making control method, which is applied to a refrigerator, the refrigerator comprising:

[0050] An ice maker equipped with several detachable ice boxes with different ice tray shapes;

[0051] The temperature sensor is used to detect the temperature of the ice cube tray and is installed in different locations on different ice making boxes;

[0052] The method comprises:

[0053] In response to a preset ice-making instruction, obtaining the temperature of the ice tray in real time;

[0054] Controlling a preset water injection device to inject a preset amount of water into the current ice making box;

[0055] determining an installation position of the temperature sensor according to a change in the temperature of the ice tray before and after water injection;

[0056] determining, according to the installation position, a shape of ice trays of the current ice making box as a target shape of ice trays;

[0057] According to the correspondence between the preset ice cube shape and the ice making operation parameter, the ice making operation parameter corresponding to the target ice cube shape is determined, and the ice making machine is controlled to operate according to the ice making operation parameter.

[0058] Compared to the prior art, the refrigerator, ice maker, and ice-making control method disclosed in the embodiments of the present invention include several detachable ice boxes with different ice cube shapes. A temperature sensor is installed in different locations on each ice box to detect the ice cube temperature. In response to a preset ice-making instruction, the ice cube temperature is acquired in real time; a preset water injection device is controlled to inject a preset amount of water into the current ice box; the installation location of the temperature sensor is determined based on the change in ice cube temperature before and after water injection; the ice cube shape of the current ice box is determined based on the installation location as a target ice cube shape; and ice-making operating parameters corresponding to the target ice cube shape are determined based on the correspondence between the preset ice cube shape and ice-making operating parameters, and the ice maker is controlled to operate according to the ice-making operating parameters. Using the technical means of the embodiments of the present invention, since the ice box of the ice maker is detachable, users can replace the ice box with one of different ice cube shapes according to their preferences and needs, thereby enabling the ice maker to produce ice cubes of different shapes according to user needs, effectively meeting user requirements. In addition, the embodiment of the present invention can automatically identify the shape of ice cubes assembled by the user, and intelligently match appropriate ice-making conditions according to the shape of the ice cubes, and control the ice machine to operate according to the ice-making operating parameters corresponding to the appropriate ice-making conditions. The user does not need to manually select and change the corresponding ice-making operating parameters, which saves complicated operating procedures, while ensuring ice-making efficiency and ice-making effects, and effectively improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 1 is a schematic structural diagram of a refrigerator provided by an embodiment of the present invention in a preferred embodiment;

[0060] Figure 2 1 is a flow chart of the work performed by the controller of the refrigerator in an embodiment of the present invention under a preferred implementation mode;

[0061] Figure 3 is a schematic diagram of a flow chart of determining an installation position in a preferred embodiment of the present invention;

[0062] Figure 4 is a schematic diagram of a flow chart of determining ice-making operation parameters in a preferred embodiment of the present invention;

[0063] Figure 5 1 is a schematic structural diagram of an ice making box with a square-shaped ice tray according to an embodiment of the present invention;

[0064] Figure 6 Schematic diagram of the installation structure of the temperature sensor on the ice making box of the square ice tray in the embodiment of the present invention;

[0065] Figure 7 1 is a schematic structural diagram of an ice making box with a crescent-shaped ice tray according to an embodiment of the present invention;

[0066] Figure 8 Schematic diagram of the installation structure of the temperature sensor on the ice making box of the crescent-shaped ice tray in an embodiment of the present invention;

[0067] Figure 9 1 is a structural diagram of an ice maker provided by an embodiment of the present invention under a preferred implementation manner;

[0068] Figure 10 1 is a flow chart of the work performed by the controller of the ice maker in an embodiment of the present invention under a preferred embodiment;

[0069] Figure 11 is a schematic diagram of a flow chart of determining an installation position in a preferred embodiment of the present invention;

[0070] Figure 12 is a schematic diagram of a flow chart of determining ice-making operation parameters in a preferred embodiment of the present invention;

[0071] Figure 13 1 is a schematic structural diagram of an ice making box with a square-shaped ice tray according to an embodiment of the present invention;

[0072] Figure 14 1 is a schematic structural diagram of an ice making box with a crescent-shaped ice tray according to an embodiment of the present invention;

[0073] Figure 15 1 is a flow chart of an ice making control method provided by an embodiment of the present invention under a preferred implementation manner. DETAILED DESCRIPTION

[0074] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0075] An embodiment of the present invention provides a refrigerator comprising at least one storage compartment, such as a refrigerator compartment and / or a freezer compartment, for storing items requiring freshness or freezing. The refrigerator further comprises a refrigeration system for performing a refrigeration operation of the refrigerator.

[0076] It should be noted that the refrigerator operates through the refrigeration system, providing cold energy to the storage compartment to maintain the compartment at a constant low temperature. Specifically, the refrigeration system of the refrigerator according to the embodiment of the present invention comprises a compressor, a condenser, a filter drier, a capillary tube, and an evaporator. The refrigeration system operates through compression, condensation, throttling, and evaporation.

[0077] The compression process is as follows: When the refrigerator is plugged in and the thermostat contacts are connected, the compressor begins operating. Low-temperature, low-pressure refrigerant is drawn into the compressor, compressed into high-temperature, high-pressure superheated gas within the compressor cylinder, and then discharged into the condenser. The condensation process involves the high-temperature, high-pressure refrigerant gas dissipating heat through the condenser, gradually cooling to a saturated vapor at room temperature and high pressure. It then cools further to a saturated liquid, where the temperature stops falling. This temperature is called the condensation temperature. The refrigerant's pressure remains virtually constant throughout the condensation process. The throttling process involves the condensed saturated refrigerant liquid passing through a filter drier to remove moisture and impurities before flowing into a capillary tube, where it undergoes throttling and pressure reduction, turning it into a wet vapor at room temperature and low pressure. The evaporation process involves the refrigerant absorbing heat and vaporizing within the evaporator, lowering the temperature of the evaporator and its surroundings while also converting the refrigerant into a low-temperature, low-pressure gas. The refrigerant exiting the evaporator returns to the compressor, repeating the process, transferring heat from the refrigerator to the air outside, achieving the cooling effect.

[0078] See also Figure 1 , is a schematic structural diagram of a refrigerator according to an embodiment of the present invention in a preferred embodiment. A refrigerator 10 according to an embodiment of the present invention further includes an ice maker 11 , a temperature sensor 12 , and a controller 13 .

[0079] The ice maker 11 is equipped with a plurality of detachable ice boxes 111. Each of the ice boxes 111 includes a plurality of ice trays for loading water and ultimately cooling water to form solid ice. Different ice boxes correspond to different shapes of ice trays 112.

[0080] The temperature sensor 12 is provided on the ice making box 111 and is used to detect the temperature of the ice cube tray 112 . The temperature sensor 12 is installed at different positions on different ice making boxes 111 .

[0081] The controller 13 is connected to the ice maker 11 and the temperature sensor 12. The controller 13 exchanges information with the ice maker 11 and the temperature sensor 12, obtains the ice cube temperature currently detected by the temperature sensor 12 in real time, and controls the ice making process of the ice maker according to the ice cube temperature.

[0082] Specifically, see Figure 2 , is a flow chart of the work performed by the controller of the refrigerator in an embodiment of the present invention under a preferred embodiment. The controller 13 is specifically configured to perform steps S11 to S15:

[0083] S11, in response to a preset ice-making instruction, obtaining the temperature of the ice tray in real time;

[0084] S12, controlling a preset water injection device to inject a preset amount of water into the current ice making box;

[0085] S13, determining the installation position of the temperature sensor according to the change in the temperature of the ice tray before and after water injection;

[0086] S14, determining the ice tray shape of the current ice making box according to the installation position as a target ice tray shape;

[0087] S15 , determining the ice-making operating parameters corresponding to the target ice-cube shape according to the preset correspondence between the ice-cube shape and the ice-making operating parameters, and controlling the ice-making machine to operate according to the ice-making operating parameters.

[0088] In this embodiment of the present invention, when a user needs to make ice, they can select an ice tray-shaped ice box according to their preferences and needs and install it on the ice maker. Furthermore, the temperature sensor 12 is installed in the corresponding installation position of the selected ice tray, and then the ice making function of the ice maker is activated. Upon receiving the ice making command input by the user, the controller 13 of the ice maker responds to the ice making command and begins to obtain and record the current ice tray temperature detected by the temperature sensor 12 in real time.

[0089] At the same time, in response to the ice-making command, the controller 13 controls the pre-installed water injection device in the ice maker to inject a preset amount of water, W0, into the ice tray 111 currently installed in the ice maker. The preset amount of water, W0, flows through the water inlet into the bottom of each ice cell in the current ice tray 111. Since the injected water is typically at room temperature, the temperature of the ice cells in the ice tray will be lower than the injected water. After water injection, the temperature at the bottom of the ice cells will warm up. Since the temperature sensor 12 is installed in different locations on ice trays of different shapes, it senses different ice cell temperatures after water injection. Based on the change in ice cell temperature before and after water injection, the installation location of the temperature sensor 12 on the current ice tray 111 can be determined. Based on this installation location, the ice cell shape of the current ice tray can be determined as the target ice cell shape.

[0090] Because ice cubes of different shapes and sizes are produced, the corresponding ice-making control strategies, such as water injection volume and ice-making duration, vary. Therefore, a correspondence between ice tray shapes and ice-making operating parameters is pre-established and stored within the internal storage space of the controller 13. Once the controller 13 determines the target ice tray shape, it determines the ice-making operating parameters corresponding to the target ice tray shape based on the pre-set correspondence between the ice tray shape and the ice-making operating parameters. These parameters are then used as the target ice-making operating parameters for the current ice tray, and the ice-making machine is controlled to operate according to the target ice-making operating parameters.

[0091] An embodiment of the present invention provides a refrigerator equipped with an ice maker and a temperature sensor. The ice maker includes several detachable ice boxes with different ice cube shapes. The temperature sensor is used to detect the ice cube temperature and is installed in different locations on different ice boxes. In response to a preset ice-making instruction, the ice cube temperature is obtained in real time. A preset water injection device is controlled to inject a preset amount of water into the current ice box. The installation location of the temperature sensor is determined based on the change in ice cube temperature before and after water injection. Based on the installation location, the ice cube shape of the current ice box is determined as a target ice cube shape. Based on the correspondence between the preset ice cube shape and ice-making operating parameters, the ice-making operating parameters corresponding to the target ice cube shape are determined, and the ice maker is controlled to operate according to the ice-making operating parameters. Using the technical means of the embodiments of the present invention, since the ice box of the ice maker is detachable, users can replace the ice box with one of different ice cube shapes according to their preferences and needs, thereby enabling the ice maker to produce ice cubes of different shapes according to the user's needs, effectively meeting the user's needs. In addition, the embodiment of the present invention can automatically identify the shape of ice cubes assembled by the user, and intelligently match appropriate ice-making conditions according to the shape of the ice cubes, and control the ice machine to operate according to the ice-making operating parameters corresponding to the appropriate ice-making conditions. The user does not need to manually select and change the corresponding ice-making operating parameters, which saves complicated operating procedures, while ensuring ice-making efficiency and ice-making effects, and effectively improving the user experience.

[0092] As a preferred embodiment, see Figure 3 , is a flow chart of determining the installation position in a preferred embodiment of the present invention. This embodiment of the present invention is further implemented on the basis of the above embodiment, wherein step S13, i.e., determining the installation position of the temperature sensor based on the change in the temperature of the ice cube tray before and after water filling, is specifically performed through steps S131 to S132:

[0093] S131, after controlling a preset water injection device to inject a preset amount of water into the current ice making box, calculating a temperature difference between the ice cube temperature before and after the water injection as a target temperature difference;

[0094] S132, determining the installation position corresponding to the target temperature difference according to a preset correspondence between the temperature difference and the installation position, and obtaining the installation position of the temperature sensor on the current ice making box;

[0095] Among them, when the temperature sensor is installed at different positions on the ice box, the sensing contact area with the water in the ice tray of the ice box is different, and in the corresponding relationship between the preset temperature difference and the installation position, the larger the sensing contact area corresponding to the installation position, the greater the temperature difference.

[0096] In an embodiment of the present invention, the installation positions of the temperature sensor 12 on different ice trays 111 are pre-designed. In a preferred embodiment, the installation position of the temperature sensor 12 is determined based on the size of the sensing contact area with the water in the ice tray after the preset amount of water is injected into the ice tray. For example, for an ice tray with an A-shaped ice tray, the temperature sensor is installed at the bottom of the ice tray, while for an ice tray with a B-shaped ice tray, the temperature sensor is installed at the side of the ice tray. When the ice tray is empty, the ice tray temperature detected by the temperature sensor 12 is always T0. After the preset amount of water W0 is injected, the sensing contact area between the temperature sensor installed at the bottom of the ice tray of the A-shaped ice tray and the water in the ice tray is S1. The temperature sensor 12 detects the current ice tray temperature as T1, and the temperature difference is calculated as ΔT1 = T1 - T0. A corresponding relationship is established between this temperature difference ΔT1 and the installation position at the bottom of the ice tray. For a temperature sensor installed on the side of an ice tray in an ice tray shaped like ice tray B, its sensing contact area with the water in the ice tray is S2 (S2 < S1). Temperature sensor 12 detects the current ice tray temperature as T2, calculates the temperature difference as ΔT2 = T2 - T0, ΔT2 < ΔT1, and establishes a correspondence between the temperature difference ΔT2 and the installation location, which is the side of the ice tray. Similarly, this correspondence between the preset temperature difference and the installation location is constructed and stored. In this correspondence between the preset temperature difference and the installation location, the larger the sensing contact area corresponding to the installation location, the greater the temperature difference.

[0097] It is understandable that the correspondence between the preset temperature difference and the installation position needs to be revised based on multiple tests, and the temperature difference may be within a certain temperature range.

[0098] In actual application, the controller 13 responds to an ice-making instruction. When the ice box is not filled with water, the temperature sensor 12 detects an ice cube temperature of T0. After a preset water volume W0 is filled, the temperature sensor 12 detects a current ice cube temperature of T1. The temperature difference is calculated as ΔT1, and the correspondence between the preset temperature difference and the installation position is queried. The result indicates that the installation position corresponding to the current temperature difference is the bottom of the ice cube. Furthermore, the corresponding ice box does not have the A ice cube shape.

[0099] In an optional embodiment, after the preset water volume W0 is injected, the water in the preset water volume W0 flows to the bottom of each ice tray. Generally, the smaller the vertical distance from the bottom of the ice tray, the larger the sensing contact area between the temperature sensor's sensing contact and the water in the ice tray. Therefore, the installation position of the temperature sensor 12 can be determined based on the distance from the bottom of the ice tray.

[0100] For example, for an ice tray with ice tray shape A, the temperature sensor is designed to be installed at the bottom of the ice tray. For an ice tray with ice tray shape B, the temperature sensor is designed to be installed 5 mm from the bottom of the ice tray. For an ice tray with ice tray shape C, the temperature sensor is designed to be installed 10 mm from the bottom of the ice tray. When the ice tray is empty, the ice tray temperature detected by temperature sensor 12 is T0. When the ice tray currently installed in the ice maker is shaped like ice tray A, after a preset amount of water W0 is added, the preset amount of water W0 flows to the bottom of each ice tray. Temperature sensor 12 detects the current ice tray temperature as T1, calculates the temperature difference as ΔT1 = T1 - T0, and establishes a correspondence between this temperature difference ΔT1 and the installation location at the bottom of the ice tray. When the ice tray currently installed on the ice maker is a B-shaped ice tray, after a preset water volume W0 is filled, the temperature sensor 12 detects the current ice tray temperature as T2, calculates the temperature difference as ΔT2 = T2 - T0, ΔT2 < ΔT1, and establishes a correspondence between the temperature difference ΔT2 and the installation position of 5 mm from the bottom of the ice tray. Similarly, a correspondence between the preset temperature difference and the installation position is established and stored. In the correspondence between the preset temperature difference and the installation position, the greater the distance from the bottom of the ice tray, the smaller the temperature difference.

[0101] By adopting the technical means of the embodiment of the present invention, by designing the installation position of the temperature sensor on different ice-making boxes, and then calculating the temperature change of the ice cube in the ice-making box before and after water injection after obtaining the ice-making instruction, the current installation position of the temperature sensor is judged, and the shape of the ice cube in the ice-making box is obtained accordingly. The judgment of the current ice cube shape is realized conveniently, effectively and accurately, which facilitates the subsequent acquisition and control of the refrigeration operation parameters of the ice maker.

[0102] As a preferred embodiment, see Figure 4 , is a flow chart of determining ice-making operating parameters in a preferred embodiment of the present invention. This embodiment of the present invention is further implemented on the basis of the above embodiment, wherein the ice-making operating parameters include water injection volume and ice-making time;

[0103] Then, step S15, i.e., determining the ice-making operating parameters corresponding to the target ice-cube shape according to the preset correspondence between the ice-cube shape and the ice-making operating parameters, and controlling the ice-making machine to operate according to the ice-making operating parameters, is specifically performed through steps S151 to S155:

[0104] S151, determining the water injection amount corresponding to the target ice tray shape according to a preset correspondence between the ice tray shape and the water injection amount, as the target water injection amount;

[0105] S152: Determine the ice-making time corresponding to the target ice-cube shape according to a preset correspondence between the ice-cube shape and the ice-making time, as the target ice-making time;

[0106] S153, controlling the water injection device to inject the target amount of water into the current ice making box;

[0107] S154, after the target water injection volume is completed, controlling a preset refrigeration device to perform a refrigeration operation on the ice making box;

[0108] S155 : After the refrigeration operation reaches the target ice-making time, controlling the refrigeration device to stop the refrigeration operation.

[0109] In an embodiment of the present invention, the ice maker is equipped with a water injection device for injecting water into the ice box and a refrigeration device for transferring cold energy to the ice box so that the water in the ice tray of the ice box freezes into solid ice. Different ice tray shapes correspond to different water injection amounts and ice-making times. Therefore, a correspondence between ice tray shape and ice-making operating parameters is pre-established, specifically including a correspondence between a preset ice tray shape and water injection amount and a preset correspondence between ice tray shape and ice-making time. Then, after the controller 13 determines the target ice tray shape, it queries the correspondence between the ice tray shape and water injection amount to obtain the target water injection amount for the current ice-making scenario. It also queries the correspondence between the ice tray shape and ice-making time to obtain the target ice-making time for the current ice-making scenario. The controller 13 then controls the ice maker to operate according to the target water injection amount and target ice-making time. Specifically, the water injection device is controlled to inject the target amount of water into the current ice making box; after the target amount of water is injected, the preset refrigeration device is controlled to perform a refrigeration operation on the ice making box. Finally, after the refrigeration operation reaches the target ice making time, the refrigeration device is controlled to stop performing the refrigeration operation, and ice making is completed.

[0110] As a preferred embodiment, the ice cube shapes of the different ice making boxes correspond to different ice cube volumes; then, in the correspondence between the preset ice cube shape and the water injection amount, the water injection amount is positively correlated with the ice cube volume corresponding to the target ice cube shape; and in the correspondence between the preset ice cube shape and the ice making time, the ice making time is positively correlated with the ice cube volume corresponding to the target ice cube shape.

[0111] Specifically, for the same ice maker, the size of the ice trays it can accommodate is the same, but the shapes of the ice cubes in different ice trays vary. Ice cubes of different shapes have corresponding designed sizes on the ice tray. Smaller ice trays have a relatively large number of ice trays, resulting in a relatively low success rate of demolding after ice making, and the required water injection volume needs to be designed more conservatively. Larger ice trays, on the other hand, have a relatively small number of ice trays, resulting in a relatively high success rate of demolding after ice making, and the required water injection volume can be designed to be relatively large. Therefore, in the predetermined correspondence between ice tray shape and water injection volume, the water injection volume is positively correlated with the ice tray volume corresponding to the target ice tray shape. Furthermore, smaller ice trays form solid ice more quickly, allowing for a shorter ice-making time. Larger ice trays form solid ice more slowly, allowing for a longer ice-making time. Therefore, in the correspondence between the preset ice tray shape and the ice making time, the ice making time and the volume of the ice tray corresponding to the target ice tray shape are positively correlated.

[0112] Preferably, after ice making is completed, the ice making box can be twisted by the ice twisting motor configured in the ice making machine itself to remove the ice cubes from the mold, making it easier for the user to take them out. The ice making machine is also provided with a display. When ice making is completed, the controller 13 sends a corresponding control instruction to the display, which controls the display to display a preset prompt message, reminding the user that ice making is currently completed and the ice cubes can be removed.

[0113] By adopting the technical means of the embodiment of the present invention, it is possible to determine and control the ice-making operating parameters of the ice maker, including the water injection volume and ice-making time, according to the shape of the ice tray and the corresponding volume size, effectively ensuring the ice-making efficiency and ice-making efficiency, and improving the user experience.

[0114] Preferably, the shapes of the ice tray include square and crescent shapes.

[0115] See also Figure 5 and Figure 6 , Figure 5 1 is a schematic structural diagram of an ice making box with a square-shaped ice tray according to an embodiment of the present invention; Figure 6This diagram illustrates the installation structure of a temperature sensor on a cube-shaped ice tray in an embodiment of the present invention. The cube-shaped ice tray is arranged in two rows with a gap between them. The temperature sensor is located in the gap between the bottoms of the two rows of ice trays. The temperature sensor can sense the temperature at the bottom of the ice trays.

[0116] See also Figure 7 and Figure 8 , Figure 7 1 is a schematic structural diagram of an ice making box with a crescent-shaped ice tray according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the temperature sensor installation structure on a crescent-shaped ice tray in an embodiment of the present invention. To facilitate demolding, the crescent-shaped ice trays are arranged in a single row. There is no space at the bottom of the ice trays to accommodate the temperature sensor. Therefore, the temperature sensor is installed at one side of the single row of ice trays, at the top of the ice tray.

[0117] The ice maker's temperature sensor is advantageously located at the bottom, effectively sensing the ice tray's temperature, even when the water level is low. However, a temperature sensor located at the top of the ice tray cannot sense changes in the ice tray's temperature when the water level is low. This requires a high level of water to ensure full contact between the temperature sensor and the ice tray. Therefore, based on this characteristic, a corresponding relationship between the temperature difference and the installation position is designed. The temperature difference detected by the temperature sensor determines the installation position of the temperature sensor, and thus determines whether the corresponding ice tray is a cube or crescent.

[0118] Furthermore, due to the different amounts of ice deformation when the ice-making motor is turned, the success rate of demolding square ice trays is lower than that of crescent-shaped ones. Therefore, when designing the water injection volume, the square ice trays should be relatively conservative, while crescent-shaped ice trays can be filled with more water. Therefore, based on this characteristic, a correspondence between ice tray shape and water injection volume is designed, and then the corresponding target water injection volume is determined based on the detected target ice tray shape.

[0119] Furthermore, in an ice maker, if a square ice tray with 10 or 12 grids is converted into a single row of crescent-shaped ice trays of the same length, the number of ice cubes decreases, and the amount of water in each ice cube increases. Furthermore, due to its thin ends and thick center, it takes longer for a crescent-shaped ice tray to freeze into solid ice than a square-shaped ice tray with the same amount of water. Therefore, based on this characteristic, a correspondence between ice tray shape and ice-making time is designed, and then the corresponding target ice-making time is determined based on the detected target ice tray shape.

[0120] In practice, when a refrigerator is first powered on and water is first refilled, the water filling mechanism is controlled to fill the square ice tray with a smaller preset water volume, W0. This volume of water fills the square ice tray, and because the temperature sensor is located at the bottom of the tray, it can clearly sense temperature changes. However, when this volume of water is added to the crescent-shaped ice tray, it barely covers the bottom of the crescent. The temperature sensor, located at the top of the tray, barely senses temperature changes. The distinct difference in the temperature rise during water filling can be used to determine whether the ice tray is square or crescent-shaped.

[0121] Preferably, in order to improve the accuracy of the judgment, the shape of the ice tray can be judged through one or two rounds of water injection.

[0122] Furthermore, after one or two rounds of water injection, the current shape of the ice tray is determined. If it is a square ice tray, the corresponding water injection amount is set to W1, and the ice-making completion time is T1; if it is a crescent ice tray, the corresponding water injection amount is set to W2, and the ice-making completion time is T2, where W2>W1, T2>T1.

[0123] Preferably, if it is set to a crescent ice tray, after setting W2 and T2, start a round of ice making and water injection. The water injection is carried out according to W2. After the water injection is completed, check the temperature recovery. If the temperature can recover normally, it means that it is confirmed to be a crescent-shaped ice tray. If it still cannot recover, there may be an abnormality, and the water injection amount is carried out according to the smaller W1.

[0124] It is understandable that the above scenario is only a preferred implementation method. In actual application, the corresponding ice tray shape, ice making operation parameters, etc. can be adjusted according to actual conditions, and no specific limitation is made here.

[0125] By adopting the technical means of the embodiment of the present invention, different temperature sensor installation positions are set according to different ice cube shapes. On the one hand, it provides users with the choice of different ice cube shapes. On the other hand, it can intelligently identify the ice cube shape selected by the user and intelligently control the ice making operating parameters of the ice maker, effectively improving the user experience.

[0126] See also Figure 9 , is a schematic diagram of the structure of an ice maker according to a preferred embodiment of the present invention. This embodiment of the present invention provides an ice maker 20, comprising an ice maker body 21 equipped with a plurality of detachable ice boxes 211, each with ice cubes 212 of varying shapes. The ice maker also includes a temperature sensor 22 and a controller 23. The temperature sensor 22 is used to detect the temperature of the ice cubes and is installed in different locations on different ice boxes.

[0127] See also Figure 10, is a flow chart of the operation performed by the controller of the ice maker in an embodiment of the present invention under a preferred embodiment. The controller 23 is used for ice making steps S21 to S25:

[0128] S21, in response to a preset ice-making instruction, obtaining the temperature of the ice cube tray in real time;

[0129] S22, controlling a preset water injection device to inject a preset amount of water into the current ice making box;

[0130] S23, determining the installation position of the temperature sensor according to the change in the temperature of the ice tray before and after water injection;

[0131] S24, determining the ice tray shape of the current ice making box according to the installation position as a target ice tray shape;

[0132] S25 , determining the ice-making operating parameters corresponding to the target ice-cube shape according to the preset correspondence between the ice-cube shape and the ice-making operating parameters, and controlling the ice-making machine to operate according to the ice-making operating parameters.

[0133] Using the technical means of the embodiments of the present invention, since the ice making box of the ice maker is detachable, users can replace the ice making box with one of different ice cube shapes according to their preferences and needs, thereby enabling the ice maker to produce ice cubes of different shapes according to the user's needs, effectively meeting the user's needs. Furthermore, the embodiments of the present invention can automatically identify the shape of the ice cubes assembled by the user and intelligently match the appropriate ice making conditions based on the ice cube shape. The ice maker is controlled to operate according to the ice making operating parameters corresponding to the appropriate ice making conditions, eliminating the need for the user to manually select and change the corresponding ice making operating parameters. This saves complex operating procedures while ensuring ice making efficiency and results, effectively improving the user experience.

[0134] As a preferred embodiment, see Figure 11 , is a flow chart of determining the installation position in a preferred embodiment of the present invention. Step S23, i.e., determining the installation position of the temperature sensor based on the change in the temperature of the ice cube tray before and after water injection, specifically includes steps S231 to S232:

[0135] S231, after controlling a preset water injection device to inject a preset amount of water into the current ice making box, calculating a temperature difference between the ice cube temperature before and after the water injection as a target temperature difference;

[0136] S232: Determine the installation position corresponding to the target temperature difference according to a preset correspondence between the temperature difference and the installation position, and obtain the installation position of the temperature sensor on the current ice making box;

[0137] Among them, when the temperature sensor is installed at different positions on the ice box, the sensing contact area with the water in the ice tray of the ice box is different, and in the corresponding relationship between the preset temperature difference and the installation position, the larger the sensing contact area corresponding to the installation position, the greater the temperature difference.

[0138] By adopting the technical means of the embodiment of the present invention, by designing the installation position of the temperature sensor on different ice-making boxes, and then calculating the temperature change of the ice cube in the ice-making box before and after water injection after obtaining the ice-making instruction, the current installation position of the temperature sensor is judged, and the shape of the ice cube in the ice-making box is obtained accordingly. The judgment of the current ice cube shape is realized conveniently, effectively and accurately, which facilitates the subsequent acquisition and control of the refrigeration operation parameters of the ice maker.

[0139] As a preferred embodiment, see Figure 12 , is a flow chart of determining ice-making operating parameters in a preferred embodiment of the present invention. The ice-making operating parameters include water injection volume and ice-making time; the ice cube shapes of different ice-making boxes correspond to different ice cube volumes;

[0140] Then, step S25, i.e., determining the ice-making operating parameters corresponding to the target ice-cube shape according to the preset correspondence between the ice-cube shape and the ice-making operating parameters, so as to control the ice-making machine to operate according to the ice-making operating parameters, specifically includes steps S251 to S255:

[0141] S251, determining the water injection amount corresponding to the target ice tray shape according to a preset correspondence between the ice tray shape and the water injection amount, as the target water injection amount;

[0142] S252: Determine the ice-making time corresponding to the target ice-cube shape according to a preset correspondence between the ice-cube shape and the ice-making time, as the target ice-making time;

[0143] S253, controlling the water injection device to inject the target amount of water into the current ice making box;

[0144] S254: After the target water injection volume is completed, controlling a preset refrigeration device to perform a refrigeration operation on the ice making box;

[0145] S255, after the refrigeration operation reaches the target ice-making time, controlling the refrigeration device to stop performing the refrigeration operation;

[0146] Among them, in the correspondence between the preset ice tray shape and the water injection amount, the water injection amount is positively correlated with the ice tray volume corresponding to the target ice tray shape; and in the correspondence between the preset ice tray shape and the ice making time, the ice making time is positively correlated with the ice tray volume corresponding to the target ice tray shape.

[0147] By adopting the technical means of the embodiment of the present invention, it is possible to determine and control the ice-making operating parameters of the ice maker, including the water injection volume and ice-making time, according to the shape of the ice tray and the corresponding volume size, effectively ensuring the ice-making efficiency and ice-making efficiency, and improving the user experience.

[0148] As a preferred embodiment, see Figure 13 and Figure 14 , Figure 13 1 is a schematic structural diagram of an ice making box with a square-shaped ice tray according to an embodiment of the present invention; Figure 14 This is a schematic diagram of the structure of a crescent-shaped ice tray in an embodiment of the present invention. The ice trays include square and crescent shapes. For the square-shaped ice tray, the ice trays are arranged in two rows, and the temperature sensor is located in the gap between the bottoms of the two rows of ice trays. For the crescent-shaped ice tray, the ice trays are arranged in a single row, and the temperature sensor is located on one side of the single row of ice trays.

[0149] By adopting the technical means of the embodiment of the present invention, different temperature sensor installation positions are set according to different ice cube shapes. On the one hand, it provides users with the choice of different ice cube shapes. On the other hand, it can intelligently identify the ice cube shape selected by the user and intelligently control the ice making operating parameters of the ice maker, effectively improving the user experience.

[0150] See also Figure 15 , is a flow chart of an ice making control method provided by an embodiment of the present invention under a preferred embodiment. The embodiment of the present invention provides an ice making control method applied to a refrigerator, the refrigerator comprising:

[0151] An ice maker equipped with several detachable ice boxes with different ice tray shapes;

[0152] The temperature sensor is used to detect the temperature of the ice cube tray and is installed in different locations on different ice making boxes;

[0153] The ice making control method includes steps S31 to S35:

[0154] S31, in response to a preset ice-making instruction, obtaining the temperature of the ice tray in real time;

[0155] S32, controlling a preset water injection device to inject a preset amount of water into the current ice making box;

[0156] S33, determining an installation position of the temperature sensor according to a change in the temperature of the ice tray before and after water injection;

[0157] S34, determining the ice tray shape of the current ice making box according to the installation position as a target ice tray shape;

[0158] S35 , determining the ice-making operating parameters corresponding to the target ice-cube shape according to the preset correspondence between the ice-cube shape and the ice-making operating parameters, and controlling the ice-making machine to operate according to the ice-making operating parameters.

[0159] Using the technical means of the embodiments of the present invention, since the ice making box of the ice maker is detachable, users can replace the ice making box with one of different ice cube shapes according to their preferences and needs, thereby enabling the ice maker to produce ice cubes of different shapes according to the user's needs, effectively meeting the user's needs. Furthermore, the embodiments of the present invention can automatically identify the shape of the ice cubes assembled by the user and intelligently match the appropriate ice making conditions based on the ice cube shape. The ice maker is controlled to operate according to the ice making operating parameters corresponding to the appropriate ice making conditions, eliminating the need for the user to manually select and change the corresponding ice making operating parameters. This saves complex operating procedures while ensuring ice making efficiency and results, effectively improving the user experience.

[0160] It should be noted that the ice-making control method provided in the embodiment of the present invention has the same process steps as those executed by the controller of a refrigerator or ice-making machine in the above embodiment, and the working principles and beneficial effects of the two correspond one to one, so they will not be repeated here.

[0161] Those skilled in the art will appreciate that all or part of the processes in the above-described method embodiments can be implemented by instructing related hardware through a computer program. The program can be stored in a computer-readable storage medium, and when executed, the program can include the processes in the above-described method embodiments. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

[0162] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that: include: An ice maker equipped with several detachable ice boxes with different ice tray shapes; The temperature sensor is used to detect the temperature of the ice cube tray and is installed in different locations on different ice making boxes; Controller for: In response to a preset ice-making instruction, obtaining the temperature of the ice tray in real time; Controlling a preset water injection device to inject a preset amount of water into the current ice making box; determining an installation position of the temperature sensor according to a change in the temperature of the ice tray before and after water injection; determining, according to the installation position, a shape of ice trays of the current ice making box as a target shape of ice trays; According to the correspondence between the preset ice cube shape and the ice making operation parameter, the ice making operation parameter corresponding to the target ice cube shape is determined, and the ice making machine is controlled to operate according to the ice making operation parameter.

2. The refrigerator according to claim 1, wherein The step of determining the installation position of the temperature sensor according to the change in the temperature of the ice cube tray before and after water injection specifically includes: After controlling a preset water injection device to inject a preset amount of water into the current ice making box, calculating a temperature difference between the temperature of the ice cube tray before the water injection and the temperature of the ice cube tray after the water injection as a target temperature difference; Determining the installation position corresponding to the target temperature difference according to a preset correspondence between the temperature difference and the installation position, and obtaining the installation position of the temperature sensor on the current ice making box; Among them, when the temperature sensor is installed at different positions on the ice box, the sensing contact area with the water in the ice tray of the ice box is different, and in the corresponding relationship between the preset temperature difference and the installation position, the larger the sensing contact area corresponding to the installation position, the greater the temperature difference.

3. The refrigerator according to claim 1, wherein The ice making operation parameters include water injection amount and ice making time; Then, determining the ice making operating parameters corresponding to the target ice cube shape according to the preset correspondence between the ice cube shape and the ice making operating parameters, and controlling the ice making machine to operate according to the ice making operating parameters, specifically includes: According to a preset correspondence between the ice tray shape and the water injection amount, determining the water injection amount corresponding to the target ice tray shape as the target water injection amount; According to the preset correspondence between the ice tray shape and the ice making time, determining the ice making time corresponding to the target ice tray shape as the target ice making time; Controlling the water injection device to inject the target amount of water into the current ice making box; After the target water injection amount is completed, controlling a preset refrigeration device to perform a refrigeration operation on the ice making box; After the cooling operation is performed for the target ice-making time, the refrigeration device is controlled to stop performing the cooling operation.

4. The refrigerator according to claim 3, wherein The ice cube shapes of the different ice making boxes correspond to different ice cube volumes; therefore, in the correspondence between the preset ice cube shape and the water injection amount, the water injection amount is positively correlated with the ice cube volume corresponding to the target ice cube shape; and in the correspondence between the preset ice cube shape and the ice making time, the ice making time is positively correlated with the ice cube volume corresponding to the target ice cube shape.

5. The refrigerator according to claim 1, wherein The shapes of the ice trays include square and crescent shapes; wherein, for the ice making box with the square-shaped ice trays, the ice trays are arranged in two rows, and the temperature sensor is arranged in the gap between the bottoms of the two rows of ice trays; for the ice making box with the crescent-shaped ice trays, the ice trays are arranged in a single row, and the temperature sensor is arranged at the side of one end of the single row of ice trays.

6. An ice making machine, characterized in that: include: The ice maker body is equipped with several detachable ice boxes with different ice tray shapes; The temperature sensor is used to detect the temperature of the ice cube tray and is installed in different locations on different ice making boxes; Controller for: In response to a preset ice-making instruction, obtaining the temperature of the ice tray in real time; Controlling a preset water injection device to inject a preset amount of water into the current ice making box; determining an installation position of the temperature sensor according to a change in the temperature of the ice tray before and after water injection; determining, according to the installation position, a shape of ice trays of the current ice making box as a target shape of ice trays; According to the correspondence between the preset ice cube shape and the ice making operation parameter, the ice making operation parameter corresponding to the target ice cube shape is determined, and the ice making machine is controlled to operate according to the ice making operation parameter.

7. The ice making machine according to claim 6, wherein: The step of determining the installation position of the temperature sensor according to the change in the temperature of the ice cube tray before and after water injection specifically includes: After controlling a preset water injection device to inject a preset amount of water into the current ice making box, calculating a temperature difference between the temperature of the ice cube tray before the water injection and the temperature of the ice cube tray after the water injection as a target temperature difference; Determining the installation position corresponding to the target temperature difference according to a preset correspondence between the temperature difference and the installation position, and obtaining the installation position of the temperature sensor on the current ice making box; Among them, when the temperature sensor is installed at different positions on the ice box, the sensing contact area with the water in the ice tray of the ice box is different, and in the corresponding relationship between the preset temperature difference and the installation position, the larger the sensing contact area corresponding to the installation position, the greater the temperature difference.

8. The ice making machine according to claim 6, wherein: The ice making operation parameters include water injection volume and ice making time; the ice cube shapes of different ice making boxes correspond to different ice cube volumes; Then, determining the ice making operating parameters corresponding to the target ice cube shape according to the preset correspondence between the ice cube shape and the ice making operating parameters, so as to control the ice making machine to operate according to the ice making operating parameters, specifically includes: According to a preset correspondence between the ice tray shape and the water injection amount, determining the water injection amount corresponding to the target ice tray shape as the target water injection amount; According to the preset correspondence between the ice tray shape and the ice making time, determining the ice making time corresponding to the target ice tray shape as the target ice making time; Controlling the water injection device to inject the target amount of water into the current ice making box; After the target water injection amount is completed, controlling a preset refrigeration device to perform a refrigeration operation on the ice making box; After the refrigeration operation reaches the target ice-making time, controlling the refrigeration device to stop performing the refrigeration operation; Among them, in the correspondence between the preset ice tray shape and the water injection amount, the water injection amount is positively correlated with the ice tray volume corresponding to the target ice tray shape; and in the correspondence between the preset ice tray shape and the ice making time, the ice making time is positively correlated with the ice tray volume corresponding to the target ice tray shape.

9. The ice making machine according to claim 6, wherein: The shapes of the ice trays include square and crescent shapes; wherein, for the ice making box with the square-shaped ice trays, the ice trays are arranged in two rows, and the temperature sensor is arranged in the gap between the bottoms of the two rows of ice trays; for the ice making box with the crescent-shaped ice trays, the ice trays are arranged in a single row, and the temperature sensor is arranged at the side of one end of the single row of ice trays.

10. An ice making control method, characterized in that: Applicable to a refrigerator, the refrigerator comprising: An ice maker equipped with several detachable ice boxes with different ice tray shapes; The temperature sensor is used to detect the temperature of the ice cube tray and is installed in different locations on different ice making boxes; The method comprises: In response to a preset ice-making instruction, obtaining the temperature of the ice tray in real time; Controlling a preset water injection device to inject a preset amount of water into the current ice making box; determining an installation position of the temperature sensor according to a change in the temperature of the ice tray before and after water injection; determining, according to the installation position, a shape of ice trays of the current ice making box as a target shape of ice trays; According to the correspondence between the preset ice cube shape and the ice making operation parameter, the ice making operation parameter corresponding to the target ice cube shape is determined, and the ice making machine is controlled to operate according to the ice making operation parameter.

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