Refrigerator and defrosting control method and device thereof

Abstract

The present invention provides a refrigerator and a defrost control method and device thereof. In the method provided by the present invention, food information of a compartment of the refrigerator is obtained in real time, and after judging that no food is put into the compartment according to the food information, the refrigerator is controlled to enter a defrosting refrigeration mode, and when it is detected that the temperature of an evaporator corresponding to the compartment is higher than a first set temperature, the compressor and the fan corresponding to the compartment are controlled to be turned on, that is, when there is no frost on a back plate, the compressor is controlled to be turned on, thereby preventing a frost layer from existing on the back plate for a long time and affecting the freshness-keeping effect of the refrigerator.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration household appliances, and in particular to a refrigerator and a defrosting control method and device thereof. Background Art

[0002] In traditional direct cooling refrigerators, the compressor is turned on and off according to the temperature of the compartment. The back panel of the compartment defrosts during the compressor shutdown process. The longer the compressor runs continuously, the thicker the frost layer on the back panel of the compartment will be. If the refrigerator door is opened and closed repeatedly, or high-temperature food is placed in the refrigerator, or the compressor opening temperature is set improperly, the back panel may be frosted for a long time, affecting the refrigerator's preservation effect. Summary of the invention

[0003] An object of the present invention is to provide a defrosting control method for a refrigerator, so as to prevent a frost layer from being present on the back plate of the refrigerator for a long time and affecting the fresh-keeping effect of the refrigerator.

[0004] A further object of the present invention is to cool down the food in the refrigerator compartment as quickly as possible to ensure the fresh-keeping effect.

[0005] Another object of the present invention is to provide a defrost control device.

[0006] In particular, the present invention provides a defrosting control method for a refrigerator, comprising:

[0007] Acquire food information of the compartment of the refrigerator in real time, and determine whether food is put into the compartment according to the food information;

[0008] If not, the refrigerator is controlled to enter a defrosting refrigeration mode, and the compressor and the fan corresponding to the compartment are controlled to start when it is detected that the temperature of the evaporator corresponding to the compartment is higher than the first set temperature.

[0009] Optionally, after the step of determining whether food is placed in the compartment according to the food information, the method further includes: if food is placed in the compartment, controlling the refrigerator to enter an enhanced cooling mode, and controlling the compressor to turn on when it is detected that the temperature of the compartment is higher than a second set temperature.

[0010] Optionally, after the step of controlling the compressor to start when it is detected that the temperature of the compartment is higher than the second set temperature, the method further includes:

[0011] Determining whether the temperature of the compartment is lower than a third set temperature;

[0012] If the temperature of the compartment is lower than the third set temperature, the compressor is controlled to be turned off and the fan is controlled to be turned on; if the temperature of the evaporator exceeds the first set temperature, a target temperature corresponding to the temperature of the evaporator is determined, and whether the temperature of the compartment exceeds the target temperature is detected and determined;

[0013] If the temperature of the compartment is less than or equal to the target temperature, the refrigerator is controlled to enter a defrosting refrigeration mode.

[0014] Optionally, after the step of detecting and determining whether the temperature of the compartment exceeds the target temperature, the step further includes: if the temperature of the compartment exceeds the target temperature, controlling the refrigerator to continue to perform an enhanced refrigeration mode until the temperature of the evaporator exceeds the first set temperature and the temperature of the compartment is less than or equal to the target temperature corresponding to the temperature of the evaporator.

[0015] Optionally, after the step of controlling the compressor and the fan corresponding to the compartment to turn on when it is detected that the temperature of the evaporator corresponding to the compartment is higher than the first set temperature, the method further includes:

[0016] Determining whether the temperature of the compartment is lower than a third set temperature;

[0017] If the temperature of the compartment is lower than the third set temperature, the compressor and the fan are controlled to be turned off.

[0018] Optionally, the temperature of the evaporator is detected by a first temperature detection device arranged on the evaporator.

[0019] Optionally, the temperature of the compartment is detected by a second temperature detection device arranged in the compartment, and the second temperature detection device is arranged on a side wall of the compartment.

[0020] Optionally, the step of acquiring the food information of the compartment of the refrigerator in real time includes: acquiring the food weight information of the compartment in real time through a weight detection device arranged on a shelf in the compartment.

[0021] According to another aspect of the present invention, a defrost control device is provided, which includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, it is used to implement the defrost control method for a refrigerator according to any one of the above items.

[0022] According to yet another aspect of the present invention, a refrigerator is provided, comprising the above-mentioned defrost control device.

[0023] The present invention provides a refrigerator and a defrost control method and device thereof. In the method provided by the present invention, food information of a compartment of the refrigerator is obtained in real time, and after judging that no food is put into the compartment according to the food information, the refrigerator is controlled to enter a defrosting refrigeration mode, and when it is detected that the temperature of an evaporator corresponding to the compartment is higher than a first set temperature, the compressor and the fan corresponding to the compartment are controlled to be turned on, that is, when there is no frost on a back plate, the compressor is controlled to be turned on, thereby preventing a frost layer from existing on the back plate for a long time and affecting the freshness-keeping effect of the refrigerator.

[0024] Furthermore, if food is placed in the refrigerator compartment, the refrigerator is controlled to enter enhanced refrigeration mode, and the compressor is controlled to start when it is detected that the temperature of the compartment is higher than the second set temperature, so that the food temperature can be lowered as quickly as possible to ensure the refrigerator's freshness preservation effect.

[0025] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below.

[0026] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0028] Figure 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

[0029] Figure 2 is a structural block diagram of a defrost control device according to an embodiment of the present invention;

[0030] Figure 3 is a schematic flow chart of a defrost control method for a refrigerator according to an embodiment of the present invention;

[0031] Figure 4 The figure is a complete flow chart of a defrost control method for a refrigerator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] It should be noted that the technical features in the embodiment and optional embodiments of the present invention can be combined with each other under the premise of no conflict.

[0034] Figure 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention; Figure 2 is a structural block diagram of a defrost control device according to an embodiment of the present invention. Figure 1 , 2 As shown, the refrigerator 100 may be a direct cooling refrigerator. A direct cooling refrigerator generally provides cooling for the compartment through an evaporator attached to the back plate of the compartment. The refrigerator 100 may at least include a compressor 140, an evaporator 170 provided at the rear of the back plate of the compartment to provide cooling for the compartment, a fan 150 for promoting air circulation in the compartment, a first temperature detection device 120 provided on the evaporator 170 for detecting the temperature of the evaporator 170, a second temperature detection device 130 provided on the side wall of the compartment for detecting the temperature of the compartment, a weight detection device 110 provided on the shelf of the compartment for detecting the weight information of food in the compartment, and a defrosting control device 160. Among them, the temperature detection device may be a temperature sensor, an infrared thermometer or the like; the weight detection device 110 may be a weight sensor. The defrosting control device 160 may include a memory 162 and a processor 161. The memory 162 stores a computer program 1621. When the computer program 1621 is executed by the processor 161, it is used to implement the defrosting control method of the refrigerator in any of the following embodiments.

[0035] In some embodiments of the present invention, the defrost control device 160 can be connected to the refrigerator 100 by data, and can be arranged at a network-side device such as a server or a cloud; the defrost control device 160 can also be a centralized control device, arranged in the environment or surrounding environment where the refrigerator 100 is located. The data connection method between the defrost control device 160 and the refrigerator 100 includes but is not limited to wireless transmission, infrared transmission, ultrasonic transmission, etc.; in addition, the defrost control device 160 can also be a part of the refrigerator 100 and be arranged inside the refrigerator 100.

[0036] Figure 3 FIG. 1 is a schematic flow chart of a refrigerator defrosting control method according to an embodiment of the present invention. Figure 3As shown, the defrost control method of a refrigerator executed by the defrost control device 160 of any of the above embodiments of the present invention may at least include the following steps S302 and S304.

[0037] Step S302: Acquire food information of the compartment of the refrigerator 100 in real time, and determine whether there is food in the compartment according to the food information;

[0038] Step S304: If not, control the refrigerator 100 to enter the defrosting mode, and control the compressor 140 and the fan 150 corresponding to the compartment to start when it is detected that the temperature of the evaporator 170 corresponding to the compartment is higher than the first set temperature.

[0039] In some embodiments of the present invention, the real-time acquisition of food information of the compartment of the refrigerator 100 mentioned in step S302 above may include: obtaining the food weight information of the compartment of the refrigerator 100 in real time through a weight detection device 110 arranged on a shelf in the compartment. The weight detection device 110 may be a weight sensor. After obtaining the food weight information. Next, judging whether food is put into the compartment according to the food information, specifically, when the food weight increase is detected, it is determined that food is put into the compartment; and if the food weight increase is not detected, it is determined that no food is put into the compartment.

[0040] In addition, in some other embodiments of the present invention, for the above step S302, an image acquisition device arranged in the compartment may be used to obtain an image of the interior of the compartment in real time, and then the image may be recognized to obtain the quantity and type of food in the compartment. If the quantity or type of food is newly added according to the quantity and type of food information, it may be determined that food has been put in. Among them, image recognition is a relatively mature technology in the field and is not the focus of the present invention, and is not described in detail herein.

[0041] In addition, for the above step S304 , the temperature of the evaporator 170 may be detected by the first temperature detection device 120 disposed on the evaporator 170 .

[0042] In this embodiment, food information of the compartment of the refrigerator 100 is obtained in real time. When it is determined based on the food information that no food is placed in the compartment, the refrigerator 100 is controlled to enter the defrosting refrigeration mode. When it is detected that the temperature of the evaporator 170 corresponding to the compartment is higher than the first set temperature, the compressor 140 and the fan 150 corresponding to the compartment are controlled to be turned on, that is, when there is no frost on the back plate, the compressor 140 is controlled to be turned on, thereby avoiding the presence of frost on the back plate for a long time and affecting the freshness preservation effect of the refrigerator 100.

[0043] In one embodiment of the present invention, after the above step S302, the following may further be included: if food is placed in the compartment, the refrigerator 100 is controlled to enter the enhanced refrigeration mode, and the compressor 140 is controlled to start when the temperature of the compartment is detected to be higher than the second set temperature. The temperature of the compartment may be detected by the second temperature detection device 130 arranged on the side wall of the compartment. The second set temperature may be the temperature of the compartment detected when the temperature of the evaporator 170 reaches the first set temperature when food is not placed in the refrigerator 100 without detection.

[0044] In this embodiment, when food is placed in the compartment, the refrigerator 100 is controlled to enter the enhanced refrigeration mode. When it is detected that the temperature of the compartment is higher than the second set temperature, the compressor 140 is controlled to start, so that the temperature of the food can be lowered as quickly as possible to ensure the freshness preservation effect of the refrigerator 100.

[0045] In one embodiment of the present invention, after the step of controlling the compressor 140 to turn on when it is detected that the temperature of the compartment is higher than the second set temperature, the defrost control method may further include: determining whether the temperature of the compartment is lower than a third set temperature; if the temperature of the compartment is lower than the third set temperature, controlling the compressor 140 to turn off and the fan 150 to turn on, and when the temperature of the evaporator 170 exceeds the first set temperature, determining the target temperature corresponding to the temperature of the evaporator 170, detecting and determining whether the temperature of the compartment exceeds the target temperature; if the temperature of the compartment is less than or equal to the target temperature, controlling the refrigerator 100 to enter the defrosting refrigeration mode.

[0046] Among them, after the temperature of the compartment is lower than the second set temperature, the fan 150 is controlled to be turned on so that the temperature of the compartment can be raised as soon as possible, so that if the temperature of the food core has not completely dropped, it can be refrigerated as soon as possible. The target temperature can be the temperature of the compartment corresponding to the temperature of the evaporator 170 measured when no food is placed in the compartment. If the temperature of the evaporator 170 exceeds the first set temperature and the temperature of the compartment does not exceed the corresponding target temperature, it can be determined that the temperature of the food has completely dropped, and the refrigerator 100 can be controlled to enter the defrosting and refrigeration mode.

[0047] In one embodiment of the present invention, after the above-mentioned step of detecting and determining whether the temperature of the compartment exceeds the target temperature, the defrost control method may further include: if the temperature of the compartment exceeds the target temperature, controlling the refrigerator 100 to continue the enhanced refrigeration mode until the temperature of the evaporator 170 exceeds the first set temperature, and the temperature of the compartment is less than or equal to the target temperature corresponding to the temperature of the evaporator 170.

[0048] Among them, if the temperature of the evaporator 170 exceeds the first set temperature and the temperature of the compartment exceeds the target temperature, it means that the temperature of the food core has not been completely lowered, resulting in the high temperature of the compartment. Next, the refrigerator 100 is controlled to continue to operate in the enhanced refrigeration mode until the temperature of the evaporator 170 exceeds the first set temperature, and the temperature of the compartment is less than or equal to the target compartment temperature corresponding to the temperature of the evaporator 170, so as to completely lower the temperature of the food.

[0049] Figure 4 1 is a complete flow chart of a defrosting control method for a refrigerator according to an embodiment of the present invention. Figure 4 The defrosting control method of the refrigerator proposed by the present invention is described in a more complete and comprehensive manner. Figure 4 As shown, the method may include the following steps S402-S416.

[0050] Step S402: Determine whether there is food in the compartment of the refrigerator 100? If yes, execute step S410; if no, execute step S404;

[0051] In this step, the weight information of the food in the compartment can be obtained in real time through the weight detection device 110 arranged on the shelf in the compartment. If the food weight is detected to increase, it is determined that food is placed in the compartment; if the food weight is not detected to increase, it is determined that no food is placed in the compartment.

[0052] Step S404: Control the refrigerator 100 to enter the defrosting and refrigeration mode, and then proceed to step S406;

[0053] Step S406: Determine whether the temperature of the evaporator 170 exceeds the first set temperature. If yes, execute step S408; if no, return to step S402;

[0054] In this step, the temperature of the evaporator 170 may be detected by the first temperature detection device 120 disposed on the evaporator 170 to determine whether the temperature of the evaporator 170 exceeds the first set temperature.

[0055] Step S408: Control the compressor 140 and the fan 150 corresponding to the compartment to start until the temperature of the compartment is lower than the third set temperature;

[0056] This step controls the compressor 140 to start when there is no frost on the back plate, thereby ensuring the freshness preservation effect of the refrigerator 100.

[0057] Step S410: Control the refrigerator 100 to enter the enhanced cooling mode, and then proceed to step S412;

[0058] Step S412: Determine whether the temperature of the compartment exceeds the second set temperature. If yes, execute step S414; if no, execute step S404;

[0059] Step S414: Control the compressor 140 to turn on until the temperature of the compartment is lower than the third set temperature, then control the fan 150 to turn on and the compressor 140 to turn off, determine that the temperature of the evaporator 170 exceeds the first set temperature, determine the target temperature corresponding to the temperature of the evaporator 170, and continue to execute step S416;

[0060] In this step, if food is placed in the compartment of the refrigerator 100, the refrigerator 100 is controlled to enter the enhanced refrigeration mode. When it is detected that the temperature of the compartment is higher than the second set temperature, the compressor 140 is controlled to start, so as to reduce the food temperature as quickly as possible and ensure the freshness preservation effect of the refrigerator 100.

[0061] Step S416: Determine whether the temperature of the compartment exceeds the target temperature. If yes, return to step S410; if no, execute step S404.

[0062] In this step, if the temperature of the evaporator 170 exceeds the first set temperature and the temperature of the compartment exceeds the target temperature, it means that the temperature of the food core has not been completely lowered, resulting in a high temperature in the compartment. Next, the refrigerator 100 is controlled to continue to operate in the enhanced refrigeration mode until the temperature of the evaporator 170 exceeds the first set temperature, and the temperature of the compartment is less than or equal to the target compartment temperature corresponding to the temperature of the evaporator 170, so as to completely lower the temperature of the food.

[0063] In the solution provided by the present invention, food information of the compartment of the refrigerator 100 is obtained in real time. When it is determined based on the food information that no food is placed in the compartment, the refrigerator 100 is controlled to enter the defrosting refrigeration mode. When it is detected that the temperature of the evaporator 170 corresponding to the compartment is higher than the first set temperature, the compressor 140 and the fan 150 corresponding to the compartment are controlled to be turned on, that is, when there is no frost on the back plate, the compressor 140 is controlled to be turned on, thereby avoiding the presence of a frost layer on the back plate for a long time and affecting the freshness preservation effect of the refrigerator 100.

[0064] Furthermore, if food is placed in the compartment of the refrigerator 100, the refrigerator 100 is controlled to enter the enhanced refrigeration mode. When it is detected that the temperature of the compartment is higher than the second set temperature, the compressor 140 is controlled to start, so as to reduce the temperature of the food as quickly as possible and ensure the freshness preservation effect of the refrigerator 100.

[0065] In addition, the functional units in various embodiments of the present invention may be physically independent of each other, or two or more functional units may be integrated together, or all functional units may be integrated into one processing unit. The above integrated functional units may be implemented in the form of hardware, or in the form of software or firmware.

[0066] Those skilled in the art can understand that if the integrated functional unit is implemented in the form of software and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can essentially or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, which includes a number of instructions to enable a computing device (such as a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention when running the instructions. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes.

[0067] Alternatively, all or part of the steps of implementing the aforementioned method embodiments may be accomplished by hardware associated with program instructions (such as a computing device such as a personal computer, a server, or a network device), and the program instructions may be stored in a computer-readable storage medium. When the program instructions are executed by a processor of a computing device, the computing device executes all or part of the steps of the methods described in the embodiments of the present invention.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that within the spirit and principles of the present invention, the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate from the protection scope of the present invention.

Claims

1. A defrosting control method for a refrigerator, comprising: Acquire food information of the compartment of the refrigerator in real time, and determine whether food is put into the compartment according to the food information; If not, control the refrigerator to enter the defrosting refrigeration mode, and control the compressor and the fan corresponding to the compartment to start when it is detected that the temperature of the evaporator corresponding to the compartment is higher than the first set temperature; Wherein, after the step of judging whether food is put into the compartment according to the food information, the method further comprises: If food is put into the compartment, the refrigerator is controlled to enter an enhanced refrigeration mode, and the compressor is controlled to start when it is detected that the temperature of the compartment is higher than a second set temperature; Determining whether the temperature of the compartment is lower than a third set temperature; If the temperature of the compartment is lower than the third set temperature, the compressor is controlled to be turned off and the fan is controlled to be turned on; if the temperature of the evaporator exceeds the first set temperature, a target temperature corresponding to the temperature of the evaporator is determined, and whether the temperature of the compartment exceeds the target temperature is detected and determined; If the temperature of the compartment exceeds the target temperature, the refrigerator is controlled to continue the enhanced refrigeration mode until the temperature of the evaporator exceeds the first set temperature. When the temperature of the compartment is less than or equal to the target temperature corresponding to the temperature of the evaporator, the refrigerator is controlled to execute the defrosting refrigeration mode.

2. The defrost control method according to claim 1, characterized in that: After the step of detecting and determining whether the temperature of the compartment exceeds the target temperature, the method further comprises: If the temperature of the compartment is less than or equal to the target temperature, the refrigerator is controlled to enter a defrosting refrigeration mode.

3. The defrost control method according to claim 1, characterized in that: After the step of controlling the compressor and the fan corresponding to the compartment to start when it is detected that the temperature of the evaporator corresponding to the compartment is higher than the first set temperature, the method further includes: Determining whether the temperature of the compartment is lower than a third set temperature; If the temperature of the compartment is lower than the third set temperature, the compressor and the fan are controlled to be turned off.

4. The defrost control method according to claim 1, characterized in that: The temperature of the evaporator is detected by a first temperature detection device arranged on the evaporator.

5. The defrost control method according to claim 1, characterized in that: detecting the temperature of the compartment by a second temperature detection device arranged in the compartment, and The second temperature detection device is arranged on the side wall of the compartment.

6. The defrost control method according to claim 1, characterized in that: The step of obtaining food information of the compartments of the refrigerator in real time comprises: The weight information of the food in the compartment is obtained in real time through a weight detection device arranged on the shelf in the compartment.

7. A defrost control device, characterized in that: The invention comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, it is used to implement the defrost control method for the refrigerator according to any one of claims 1 to 6.

8. A refrigerator, characterized in that: Comprising the defrost control device as claimed in claim 7.

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