Defrosting control method and control device of refrigerator, refrigerator and storage medium
By dividing the frosting cycle of the cold refrigerator into multiple heating stages, and in the refrigeration mode in the heating gap, it solves the problem of rising room temperature to increase the temperature of the frosting time, and achieves the effect of lowering temperature fluctuations.
Patent Information
- Application Number
- CN202411232717.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-01-24
AI Technical Summary
During the defrosting process of air-cooled refrigerator, the defrosting heater is heated for a long time, causing the room temperature to rise, affecting the storage of items.
The defrost cycle is divided into multiple heating stages, each heating stage has a different preset temperature. When the temperature of the defrost sensor reaches or exceeds the preset temperature, heating stops and the system is in cooling mode during the heating gap.
Reduce the temperature fluctuations in the chamber during the defrost cycle through multiple short-term heating, reducing the adverse impact on item storage.
Smart Images
Figure CN119353858A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of refrigerators, and in particular to a defrosting control method, a control device, a refrigerator, and a storage medium for a refrigerator. Background Art
[0002] During the operation of an air-cooled refrigerator, frost will form on the surface of the evaporator. If the frost is not cleaned in time, it will affect the air circulation in the refrigerator, resulting in poor refrigeration effect. Therefore, it is necessary to defrost the air-cooled refrigerator.
[0003] In the air-cooled refrigerators of the related art, the defrosting heater is heated to the required temperature at one time by a preset defrosting cycle to complete the defrosting. In these schemes, the heater heating time is relatively long, and during the continuous heating process, the temperature inside the refrigerator is affected by the defrosting heater, causing the temperature to rise, which will have an adverse effect on the storage of items in the room. Summary of the invention
[0004] The embodiments of the present application provide a defrost control method, a control device, a refrigerator, and a storage medium for a refrigerator, which can reduce temperature fluctuations in a compartment.
[0005] In a first aspect, an embodiment of the present application provides a defrost control method for a refrigerator, characterized in that the defrost cycle of the refrigerator includes multiple heating stages, and the method includes: obtaining a defrost sensor temperature; and when the defrost sensor temperature is greater than or equal to a preset temperature corresponding to a current heating stage, controlling the defrost heater of the refrigerator to stop heating, wherein the multiple preset temperatures corresponding to the multiple heating stages increase sequentially.
[0006] In some implementations, a preset temperature corresponding to a first heating stage among the multiple heating stages is lower than a compartment setting temperature of the refrigerator; and a preset temperature corresponding to a last heating stage among the multiple heating stages is higher than the compartment setting temperature of the refrigerator.
[0007] In some implementations, the multiple heating stages include a first heating stage, a second heating stage, and a third heating stage, wherein the preset temperature corresponding to the first heating stage is lower than the compartment setting temperature of the refrigerator, the preset temperature corresponding to the second heating stage is higher than the compartment setting temperature of the refrigerator, and the preset temperature corresponding to the third heating stage is higher than the compartment setting temperature of the refrigerator.
[0008] In some implementations, it is characterized in that, during the heating gap between adjacent heating stages, the refrigerator is in a cooling mode.
[0009] In some implementations, in the refrigeration mode, the compressor and the fan of the refrigerator are in operation, and the damper of the refrigerator is in an open state.
[0010] In some implementations, when the duration of the heating gap reaches a preset duration, it is determined that the refrigerator exits the refrigeration mode.
[0011] In some implementations, the method further includes: when the compartment temperature satisfies a temperature condition, determining that the refrigerator enters the defrost cycle.
[0012] In some implementations, when the compartment temperature satisfies the temperature condition, determining that the refrigerator enters the defrost cycle includes: when the refrigeration compartment temperature is less than or equal to the refrigeration compartment set temperature, determining that the damper of the refrigerator is closed, or when the freezer compartment temperature is less than or equal to the freezer compartment set temperature, determining that the fan and compressor of the refrigerator are turned off; and controlling the defrost heater to heat.
[0013] In a second aspect, an embodiment of the present application provides a control device, which is applied to a refrigerator, characterized in that the defrosting cycle of the refrigerator includes multiple heating stages, and the device includes:
[0014] An acquisition module, used to acquire the defrost sensor temperature; and
[0015] A control module is used to control the defrost heater of the refrigerator to stop heating when the temperature of the defrost sensor is greater than or equal to the preset temperature corresponding to the current heating stage, wherein:
[0016] The multiple preset temperatures corresponding to the multiple heating stages are increased in sequence.
[0017] In a third aspect, an embodiment of the present application provides a refrigerator, characterized in that it includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, it implements the operations in the method described in the first aspect.
[0018] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the operations in the method described in the first aspect are implemented.
[0019] In summary, the defrost control method provided in the embodiment of the present application includes: obtaining the defrost sensor temperature; and when the defrost sensor temperature is greater than or equal to the preset temperature corresponding to the current heating stage, controlling the defrost heater of the refrigerator to stop heating, wherein the multiple preset temperatures corresponding to the multiple heating stages are increased in sequence. The defrost control method provided in the embodiment of the present application divides the entire defrost cycle into multiple heating stages, and compared with the defrost operation in a single heating stage, each heating stage has less impact on the refrigerator compartment. Therefore, the present application can reduce the temperature fluctuation of the compartment during the defrost cycle. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of this specification, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0021] Figure 1 A schematic diagram showing a flow chart of a refrigerator defrosting control method provided by some embodiments of the present application;
[0022] Figure 2 A schematic diagram of a process of entering a defrost cycle provided by some embodiments of the present application is shown;
[0023] Figure 3 An example diagram showing a defrost control method provided by some embodiments of the present application;
[0024] Figure 4 A schematic diagram showing the structure of a control device provided in some embodiments of the present application; and
[0025] Figure 5 A schematic structural diagram of a refrigerator provided in some embodiments of the present application is shown. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in this application to clearly and completely describe the technical solutions in this application. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.
[0027] In an air-cooled refrigerator, a defrost heater can be arranged at the bottom of the evaporator. During the defrost cycle, the refrigerator controls the defrost heater to heat up to generate heat to melt the frost layer on the surface of the evaporator. Since the defrost heater is far away from the upper part of the evaporator, it is difficult for the heat to radiate to the upper part of the evaporator. If the frost on the evaporator is to be cleared in one heating, a longer heating time is required. Long-term heating of the defrost heater will cause the temperature of the compartment to rise, which is not conducive to the preservation of items in the box. Therefore, an embodiment of the present application provides a defrost control method for a refrigerator, which reduces the temperature fluctuation of the compartment during the defrost cycle by multiple short-term heating.
[0028] Figure 1 The flowchart of the defrost control method of the refrigerator provided by some embodiments of the present application is shown. Although the logical order is shown in the flowchart, in some cases, the operations shown or described may be performed in an order different from that shown in the drawings. The specific process of the defrost control method may be as follows:
[0029] S101, obtaining the defrost sensor temperature.
[0030] The defrost sensor temperature may be a temperature collected by the defrost sensor. The defrost sensor may collect temperature data at preset time intervals.
[0031] The defrost sensor can be arranged on or near a device in the refrigerator that is prone to frost. For example, the defrost sensor can be arranged to collect the temperature of the evaporator pipeline. The defrost sensor can be arranged on the surface of the evaporator pipeline to collect the evaporator surface temperature. For example, the defrost sensor can be arranged at the evaporator inlet. For example, the defrost sensor can be arranged at the evaporator outlet. For another example, the defrost sensor can be arranged at the middle section of the evaporator pipeline.
[0032] It should be understood that in other embodiments, the defrost sensor may also be configured on other devices in the refrigerator according to different structures of the refrigerator. In addition, the defrost sensor may be a temperature sensor dedicated to the defrost function or a temperature sensor shared by multiple functions, which is not limited in this application.
[0033] S103: When the defrost sensor temperature is greater than or equal to a preset temperature corresponding to the current heating stage, control the defrost heater of the refrigerator to stop heating.
[0034] The defrost cycle of the refrigerator may include multiple heating stages. During the heating stage, the defrost heater is in a heating state. When the heating stage ends, the defrost heater stops heating. When the defrost sensor temperature meets the end condition of the current heating stage, the defrost heater stops heating. The end condition corresponding to the heating stage may be a preset temperature corresponding to the heating stage. When the defrost sensor temperature is greater than or equal to the preset temperature corresponding to the current heating stage, the defrost sensor is controlled to stop heating to avoid excessive changes in the compartment temperature due to the defrost heater heating time being too long.
[0035] Among them, the multiple preset temperatures corresponding to the multiple heating stages are increased in sequence. In some embodiments, the defrost heater can be arranged below the evaporator. In the initial stage of the defrost cycle, the heating of the defrost heater can remove at least part of the frost layer in the middle and lower part of the evaporator. Since the frost layer in the middle and lower part of the evaporator is thicker, it is easy to cause frost blockage and affect the air circulation. Defrosting the middle and lower part of the evaporator can give priority to the air circulation to a certain extent and prevent the refrigeration effect from deteriorating. Since the defrost heater is located below the evaporator, when defrosting the parts that are closer, the defrost heater heats for a shorter time or heats the evaporator pipeline to a lower preset temperature with a lower power to meet the defrosting requirements. In the later stage of the defrost cycle, the frost layer in the middle and lower part of the evaporator has been removed in the previous heating stage, and the frost layer in the middle and upper part needs to be removed at this time. Since the middle and upper part of the evaporator is far away from the defrost heater, the evaporator pipeline needs to be heated to a higher preset temperature at this time to transfer the heat of the defrost heater to the upper part.
[0036] The defrost control method for a refrigerator provided in some embodiments of the present application can obtain the defrost sensor temperature, and when the frost sensor temperature is greater than or equal to the preset temperature corresponding to the current heating stage, control the defrost heater to stop heating. Among them, the multiple preset temperatures corresponding to the multiple heating stages increase in sequence. The defrost control method provided in the embodiment of the present application divides the entire defrost cycle into multiple heating stages. Compared with the defrost operation in a single heating stage, each heating stage has less impact on the refrigerator compartment. Therefore, the present application can reduce the temperature fluctuation of the compartment during the defrost cycle.
[0037] In some embodiments, the preset temperature corresponding to the first heating stage among the multiple heating stages is lower than the compartment setting temperature of the refrigerator; and the preset temperature corresponding to the last heating stage among the multiple heating stages is higher than the compartment setting temperature of the refrigerator.
[0038] Among them, for a refrigerator including only one compartment, the compartment setting temperature is the setting temperature of the compartment. For a refrigerator including a refrigerating compartment and a freezing compartment, the compartment setting temperature may be the setting temperature of the freezing compartment or the refrigerating compartment. The compartment setting temperature may be used to indicate the target temperature that the compartment is expected to reach. The compartment setting temperature may be a temperature set by the user or a default temperature set by the refrigerator control system.
[0039] When the refrigerator is running stably, the temperature of the evaporator is usually lower than the set temperature of the compartment. In the first heating stage, since the lower preset temperature can meet the defrosting requirements, the evaporator temperature can be increased by a small amount, and the increased temperature is still lower than the set temperature of the compartment. That is, the preset temperature corresponding to the first heating stage can be lower than the set temperature of the refrigerator compartment. In the last heating stage, the preset temperature needs to be appropriately increased to radiate the heat of the defrost heater to the upper part faster. Therefore, the evaporator temperature can be increased to be higher than the set temperature of the compartment to quickly melt the frost layer in the upper part of the evaporator.
[0040] In some embodiments, the plurality of heating stages include a first heating stage, a second heating stage, and a third heating stage. Among them, the preset temperature corresponding to the first heating stage is lower than the compartment setting temperature of the refrigerator, the preset temperature corresponding to the second heating stage is higher than the compartment setting temperature of the refrigerator, and the preset temperature corresponding to the third heating stage is higher than the compartment setting temperature of the refrigerator. For example, the preset temperature corresponding to the first heating stage may be 1°C to 3°C lower than the compartment setting temperature. For example, the preset temperature corresponding to the second heating stage may be 4°C to 6°C higher than the compartment setting temperature. For example, the preset temperature corresponding to the third heating stage may be 8°C to 12°C higher than the compartment setting temperature. It is understandable that different preset temperatures may be set for refrigerators of different models.
[0041] The defrost control method provided in some embodiments of the present application sets multiple heating stages and presets the temperature conditions for ending heating in the heating stages, thereby reasonably controlling the heating time of each stage to prevent excessive temperature rise in the compartment due to excessive heating time.
[0042] In order to ensure the refrigeration effect of the refrigerator, in some embodiments, the refrigerator can be in refrigeration mode during the heating interval between adjacent heating stages. That is, in the defrosting cycle, during the heating stage, the refrigerator suspends refrigeration and the defrost heater performs heating and defrosting; during the heating interval, the defrost heater stops heating and the refrigerator starts refrigeration. Refrigeration during the heating interval can reduce the heat brought by the heating stage as quickly as possible to ensure the stability of the compartment temperature.
[0043] In some embodiments, in the cooling mode, the compressor and the fan of the refrigerator may be in operation, and the damper of the refrigerator may be in an open state. In the cooling mode, the compressor works to promote the circulation of the refrigerant, and the fan and the damper are opened, so that the air in the box circulates to complete the heat exchange with the evaporator and reduce the temperature in the box.
[0044] In some embodiments, a preset duration can be set for the cooling mode of the heating gap. When the duration of the heating gap reaches the preset duration, it can be determined that the refrigerator exits the cooling mode. After a period of cooling, the temperature rise effect caused by the heating of the defrost heater gradually disappears, and some water vapor may frost on the surface of the evaporator during the cooling period. Therefore, after a period of cooling, the refrigerator can exit the cooling mode and enter the next heating stage.
[0045] Some embodiments of the present application achieve defrosting by multiple short-term heating. Each heating process is short, and after each short-term heating, the refrigeration is started, so that the temperature inside the box can be kept stable as soon as possible. Therefore, this solution can reduce the adverse effects of heating and temperature rise on the physical storage inside the compartment.
[0046] Next, we will introduce how to determine whether the refrigerator has entered the defrost cycle.
[0047] In some embodiments, when the compartment temperature meets the temperature condition, it can be determined that the refrigerator enters the defrost cycle. After the previous defrost cycle ends, that is, after the last heating stage of the previous defrost cycle ends, the refrigerator can enter the refrigeration cycle. During the refrigeration cycle, a new frost layer will form on the evaporator. Therefore, after the refrigeration temperature condition is preferentially met, it is necessary to enter the defrost cycle again for defrosting.
[0048] Figure 2 The flowchart of entering the defrost cycle provided by some embodiments of the present application is shown. Although the logical order is shown in the flowchart, in some cases, the operations shown or described may be performed in an order different from that shown in the drawings. The specific process of entering the defrost cycle may be as follows:
[0049] S201: When the temperature of the refrigerating compartment is less than or equal to the set temperature of the refrigerating compartment, it can be determined that the damper of the refrigerator is closed.
[0050] When the temperature of the cold storage room is less than or equal to the set temperature of the cold storage room, it indicates that the temperature of the cold storage room has met the temperature requirement. At this time, the damper can be closed to prevent cold air from continuing to flow into the cold storage room and avoid excessive temperature drop in the cold storage room.
[0051] S203: When the temperature of the freezing compartment is less than or equal to the set temperature of the freezing compartment, it can be determined that the fan and the compressor of the refrigerator are turned off.
[0052] When the freezer compartment temperature is less than or equal to the freezer compartment set temperature, it indicates that the freezer compartment temperature has met the temperature requirement. At this time, the compressor is no longer needed to continue working to provide more cooling capacity, and the compressor and fan can be turned off.
[0053] S205, controlling the heating of the defrost heater.
[0054] When the compartment temperature meets the temperature conditions, the refrigerator can enter the defrost cycle and control the defrost heater to heat.
[0055] Of course, in other embodiments, the refrigerator can be arranged in a manner different from that of Figure 2 The process shown enters the defrost cycle. For example, for a refrigerator with only one compartment, when the temperature of the compartment is less than or equal to the preset temperature, the damper, the fan and the compressor can be closed. After that, the defrost cycle is entered and the defrost heater is controlled to heat.
[0056] Figure 3 An example diagram of a defrost control method provided by some embodiments of the present application is shown. Figure 3 The process of the defrost control method shown can be as follows:
[0057] It is determined whether the temperature of the refrigerator compartment is less than or equal to the set temperature of the refrigerator compartment. If the determination result is yes, the refrigerator door is closed.
[0058] It is determined whether the temperature of the freezer compartment is less than or equal to the set temperature of the freezer compartment. If the determination result is yes, the refrigerator fan and compressor are turned off.
[0059] When the above two conditions are met, the defrost cycle begins.
[0060] Enter the first heating stage. Control the defrost heater to heat. Determine whether the defrost sensor temperature is greater than or equal to the preset temperature T1 corresponding to this stage. If the judgment result is yes, the defrost heater stops heating and exits the first heating stage. If the judgment result is no, the defrost heater continues to heat until the defrost sensor temperature meets the conditions for exiting the first heating stage.
[0061] Exit the first heating stage. The compressor is turned on, the damper is opened, and the fan is turned on, and it runs in cooling mode for T hours. After the running time is met, the compressor is turned off, the damper is closed, and the fan is turned off.
[0062] Enter the second heating stage. Control the defrost heater to heat. Determine whether the defrost sensor temperature is greater than or equal to the preset temperature T2 corresponding to this stage. If the judgment result is yes, the defrost heater stops heating and exits the second heating stage. If the judgment result is no, the defrost heater continues to heat until the defrost sensor temperature meets the conditions for exiting the second heating stage.
[0063] Exit the second heating stage. The compressor is turned on, the damper is opened, and the fan is turned on, and it runs in cooling mode for T hours. After the running time is met, the compressor is turned off, the damper is closed, and the fan is turned off.
[0064] Enter the third heating stage. Control the defrost heater to heat. Determine whether the defrost sensor temperature is greater than or equal to the preset temperature T3 corresponding to this stage. If the judgment result is yes, the defrost heater stops heating and exits the defrost cycle. If the judgment result is no, the defrost heater continues to heat until the defrost sensor temperature meets the conditions for exiting the defrost cycle.
[0065] Exit the defrost cycle and enter the refrigeration cycle. The compressor, damper and fan are turned on until the refrigeration compartment and freezer compartment meet the temperature conditions, and then enter the defrost cycle again.
[0066] In the three heating stages of the defrost cycle, T1 <T2<T3。
[0067] Figure 4 The schematic diagram of the structure of the control device provided by some embodiments of the present application is shown. Among them, the control device 400 is applied to a refrigerator, and the defrosting cycle of the refrigerator includes multiple heating stages. The control device 400 may specifically include:
[0068] The acquisition module 401 may be used to acquire the defrost sensor temperature.
[0069] The control module 403 can be used to control the defrost heater of the refrigerator to stop heating when the defrost sensor temperature is greater than or equal to the preset temperature corresponding to the current heating stage. The preset temperatures corresponding to the multiple heating stages are increased in sequence.
[0070] The control device 400 provided in some embodiments of the present application can obtain the defrost sensor temperature by the acquisition module 401. Next, the control module 403 controls the defrost heater of the refrigerator to stop heating when the defrost sensor temperature is greater than or equal to the preset temperature corresponding to the current heating stage. Among them, the multiple preset temperatures corresponding to the multiple heating stages are increased in sequence. The control device 400 provided in some embodiments of the present application can reduce the temperature fluctuation of the compartment during the defrost cycle.
[0071] In some embodiments, the control device 400 further includes a determination module. The determination module can be used to determine that the refrigerator enters a defrosting cycle when the compartment temperature meets the temperature condition.
[0072] In some embodiments, the determination module may include a first determination unit, a second determination unit, and a first control unit. The first determination unit may be used to determine that the damper of the refrigerator is closed when the temperature of the refrigerating compartment is less than or equal to the set temperature of the refrigerating compartment. The second determination unit may be used to determine that the fan and compressor of the refrigerator are closed when the temperature of the freezing compartment is less than or equal to the set temperature of the freezing compartment. The first control unit may be used to control the heating of the defrosting heater.
[0073] In addition, the present application also provides a refrigerator, Figure 5 The schematic diagram of the structure of the refrigerator provided by some embodiments of the present application is shown, specifically:
[0074] The refrigerator 500 may include one or more processors 501 of processing cores, one or more computer-readable storage media memories 502 and other components. Those skilled in the art will appreciate that Figure 5 The structure of the refrigerator 500 shown in the figure does not constitute a limitation on the refrigerator 500, and the refrigerator 500 may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.
[0075] The processor 501 is the control center of the refrigerator 500. It uses various interfaces and lines to connect various parts of the entire refrigerator 500. By running or executing software programs and / or modules stored in the memory 502 and calling data stored in the memory 502, it performs various functions of the refrigerator 500 and processes data, thereby monitoring the refrigerator 500 as a whole. Optionally, the processor 501 may include one or more processing cores; preferably, the processor 501 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 501.
[0076] The memory 502 can be used to store software programs and modules. The processor 501 executes various functional applications and data processing by running the software programs and modules stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function, etc.; the data storage area may store data created according to the use of the refrigerator 500, etc. In addition, the memory 502 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 502 may also include a memory controller to provide the processor 501 with access to the memory 502.
[0077] Specifically in this embodiment, the processor 501 in the refrigerator 500 will load the executable files corresponding to the processes of one or more applications into the memory 502 according to the following instructions, and the processor 501 will run the applications stored in the memory 502, thereby implementing the operations in any defrost control method provided in the embodiments of the present application.
[0078] The specific process of the refrigerator 500 executing the defrosting control method can be referred to Figure 1 , Figure 2 The description in , this application will not be repeated here.
[0079] Those skilled in the art will appreciate that all or part of the operations in the various methods of the above embodiments may be accomplished through instructions, or through instruction-controlled related hardware. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.
[0080] To this end, the present application provides a computer-readable storage medium, on which a computer program is stored. The computer program can be loaded by a processor to execute the operations in any one of the defrost control methods provided in the present application.
[0081] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.
[0082] The computer-readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.
[0083] Since the instructions stored in the computer-readable storage medium can execute the operations in any one of the defrost control methods provided in the present application, the beneficial effects that can be achieved by any one of the defrost control methods provided in the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.
[0084] The above is a detailed introduction to the defrost control method, control device, refrigerator and storage medium of a refrigerator provided in the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for technical personnel in this field, according to the idea of the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.
Claims
1. A defrosting control method for a refrigerator, characterized in that: The defrosting cycle of the refrigerator includes multiple heating stages, and the method includes: Get the defrost sensor temperature; and When the temperature of the defrost sensor is greater than or equal to the preset temperature corresponding to the current heating stage, the defrost heater of the refrigerator is controlled to stop heating, wherein: The multiple preset temperatures corresponding to the multiple heating stages are increased in sequence.
2. The method according to claim 1, characterized in that The preset temperature corresponding to the first heating stage among the multiple heating stages is lower than the compartment setting temperature of the refrigerator; and the preset temperature corresponding to the last heating stage among the multiple heating stages is higher than the compartment setting temperature of the refrigerator.
3. The method according to claim 2, characterized in that The multiple heating stages include a first heating stage, a second heating stage and a third heating stage, wherein the preset temperature corresponding to the first heating stage is lower than the compartment setting temperature of the refrigerator, the preset temperature corresponding to the second heating stage is higher than the compartment setting temperature of the refrigerator, and the preset temperature corresponding to the third heating stage is higher than the compartment setting temperature of the refrigerator.
4. The method according to claim 1, characterized in that During a heating interval between adjacent heating stages, the refrigerator is in a cooling mode.
5. The method according to claim 4, characterized in that In the cooling mode, the compressor and the fan of the refrigerator are in operation, and the damper of the refrigerator is in an open state.
6. The method according to claim 4, characterized in that When the duration of the heating gap reaches a preset duration, it is determined that the refrigerator exits the cooling mode.
7. The method according to claim 1, characterized in that The method further comprises: When the compartment temperature meets the temperature condition, it is determined that the refrigerator enters the defrost cycle.
8. The method according to claim 7, characterized in that When the temperature of the compartment meets the temperature condition, determining that the refrigerator enters the defrosting cycle includes: When the temperature of the refrigerating compartment is less than or equal to the set temperature of the refrigerating compartment, it is determined that the air door of the refrigerator is closed, or When the temperature of the freezing compartment is less than or equal to the set temperature of the freezing compartment, determining that the fan and the compressor of the refrigerator are turned off; and Controlling the defrost heater to heat.
9. A control device, applied to a refrigerator, characterized in that: The defrosting cycle of the refrigerator includes multiple heating stages, and the device includes: An acquisition module, used to acquire the defrost sensor temperature; and A control module is used to control the defrost heater of the refrigerator to stop heating when the temperature of the defrost sensor is greater than or equal to the preset temperature corresponding to the current heating stage, wherein: The multiple preset temperatures corresponding to the multiple heating stages are increased in sequence.
10. A refrigerator, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the operations in the method according to any one of claims 1 to 8 when executing the computer program.
11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the operations in the method according to any one of claims 1 to 8 are implemented.