Control method and device for defrosting of refrigeration equipment, refrigeration equipment and computer readable storage medium

Abstract

The invention relates to the technical field of refrigeration, and discloses a control method for defrosting of refrigeration equipment, and the refrigeration equipment comprises an evaporator and an electric heating device; the evaporator and the electric heating device are separated into a plurality of parts by partition pieces, each part of the evaporator corresponds to a refrigerating chamber or a freezing chamber, and each part of the evaporator is provided with a fan; the method comprises the steps that under the condition that a compressor of the refrigeration equipment is in a standby state, frost layer information of an evaporator and the temperature of a refrigeration chamber are obtained; and according to the frost layer information and the temperature of the refrigeration chamber, the state of each fan is controlled so as to defrost the evaporator. The method utilizes relatively high temperatures in the refrigeration compartment to melt frost on the evaporator. Therefore, the defrosting time of the whole machine is shortened while the frosting period is prolonged, and the energy consumption can be further reduced. The invention further discloses a control device for defrosting of the refrigeration equipment, the refrigeration equipment and a computer readable storage medium.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, for example, to a control method and device for defrosting refrigeration equipment, refrigeration equipment, and a computer-readable storage medium. Background Art

[0002] At present, refrigeration products include single system, dual system or triple system. Single system refrigeration products are controlled by single evaporator and single fan, and their energy consumption is relatively high. Dual system or triple system has a separate evaporator for each compartment, and multiple evaporators are connected and controlled by solenoid valves, which has the problem of high component cost.

[0003] The relevant patent discloses an integrated dual-mode evaporation system, including: an evaporator core and several evaporation fans; the interior of the evaporator core is separated by an isolation sheet along its own length direction to form several evaporation areas in series, and an evaporation fan is correspondingly arranged on the top of each evaporation area to discharge the generated cold air.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] Although the related technologies reduce energy consumption and take into account the cost issue, they do not involve how to ensure the defrosting effect of cold products while reducing costs and improving energy efficiency.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a control method and device for defrosting a refrigeration device, a refrigeration device, and a computer-readable storage medium, so as to ensure the defrosting effect of the refrigeration device while ensuring the cost and energy efficiency of the refrigeration device.

[0009] In some embodiments, the refrigeration device includes an evaporator and an electric heating device; the evaporator and the electric heating device are separated into multiple parts by a partition, each part of the evaporator is respectively for a refrigerated compartment or a frozen compartment, and each part of the evaporator is equipped with a fan; the method includes:

[0010] When the compressor of the refrigeration equipment is in a standby state, the frost layer information of the evaporator and the temperature of the refrigerated compartment are obtained; according to the frost layer information and the temperature of the refrigerated compartment, the state of each fan is controlled to defrost the evaporator.

[0011] In some embodiments, the device includes: a processor and a memory storing program instructions, and the processor is configured to execute the aforementioned control method for defrosting refrigeration equipment when running the program instructions.

[0012] In some embodiments, the refrigeration equipment includes: a refrigeration equipment body; and a control device for defrosting the refrigeration equipment as described above, which is installed on the refrigeration equipment body.

[0013] In some embodiments, the computer-readable storage medium stores program instructions, and when the program instructions are executed, the computer executes the control method for defrosting refrigeration equipment as described above.

[0014] The control method and device for defrosting refrigeration equipment, refrigeration equipment, and computer-readable storage medium provided in the embodiments of the present disclosure can achieve the following technical effects:

[0015] In the disclosed embodiment, the evaporator and the electric heating device are isolated into multiple parts, each of which corresponds to a compartment and is equipped with a corresponding fan. When the refrigeration compressor of the refrigeration equipment is on standby, it can be determined whether defrosting is required based on the frost layer information of the evaporator. If defrosting is required, the state of each fan can be controlled based on the temperature of the refrigerated compartment. The relatively high temperature in the refrigerated compartment can be used to melt the frost on the refrigerated side of the evaporator and part of the frost on the frozen side. In this way, the frosting cycle is extended and the defrosting time of the entire machine is shortened, which helps to further reduce energy consumption.

[0016] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0018] Figure 1 is a schematic structural diagram of a heat exchanger for a refrigeration device provided in an embodiment of the present disclosure;

[0019] Figure 2 is a schematic diagram of the assembly structure of a heat exchanger for a refrigeration device provided in an embodiment of the present disclosure;

[0020] Figure 3is a schematic diagram of a control method for defrosting refrigeration equipment provided by an embodiment of the present disclosure;

[0021] Figure 4 is a schematic diagram of another control method for defrosting refrigeration equipment provided by an embodiment of the present disclosure;

[0022] Figure 5 is a schematic diagram of another control method for defrosting refrigeration equipment provided by an embodiment of the present disclosure;

[0023] Figure 6 is a schematic diagram of another control method for defrosting refrigeration equipment provided by an embodiment of the present disclosure;

[0024] Figure 7 It is a schematic diagram of a control device for defrosting refrigeration equipment provided by an embodiment of the present disclosure. Description of the drawings:

[0026] 10: evaporator; 20: electric heating device; 30: partition; 40: fan; 50; partition; 60: fan partition; 12: heat exchange tube; 11: heat exchange fin; 10a: first heat exchange part; 10b: second heat exchange part; 31: partition; 41: first fan; 42: second fan; 100: control method and device for defrosting of refrigeration equipment; 101: processor; 103: communication interface; 102: memory; 104: bus. DETAILED DESCRIPTION

[0027] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0028] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0029] Unless otherwise stated, the term "plurality" means two or more.

[0030] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0031] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0032] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0033] Combination Figure 1 The refrigeration device includes an evaporator 10 and an electric heating device 20. The evaporator and the electric heating device are separated into multiple heat exchange parts by a partition 30. Each evaporator corresponds to a refrigeration compartment or a freezing compartment, and each evaporator is equipped with a fan 40, which is used to drive the air flow to flow through the corresponding evaporator and then flow into the connected compartments.

[0034] Here, the evaporator 10 includes a heat exchange tube 12 and a heat exchange fin 11, and a plurality of heat exchange fins 11 are arranged side by side, and the heat exchange tube 12 runs through the plurality of heat exchange fins 11. The partition 30 is located between two adjacent heat exchange fins 11, and is used to separate the evaporator 20 into a plurality of heat exchange parts and the refrigerant flows between the plurality of heat exchange parts. The partition 30 is located between adjacent heat exchange fins 11, so that the partition 30 can utilize the gap between the heat exchange fins 11 to install the partition 30, which can improve the separation effect of the partition 30. The evaporator 10 of the embodiment of the present disclosure can separate one evaporator 10 into a plurality of heat exchange parts through the partition 30, so that the plurality of heat exchange parts can correspond to different compartments, which can avoid the odor of different compartments, and there is no need to set up a plurality of evaporators 10, which reduces the complexity of the structure, reduces the cost, and improves the convenience of production and installation.

[0035] The electric heating device 20 is located on one side of the evaporator 10 and is used to defrost the evaporator 10. The partition 50, corresponding to the partition 30, is used to divide the electric heating device 20 into a plurality of heating parts, the number of which is the same as the number of heat exchange parts and corresponds one to one. In order to prevent the cold or odor of the plurality of heat exchange parts from spreading through the position of the electric heating device 20. The partition 31 is provided on the electric heating device 20, so that the cold or odor of the plurality of heat exchange parts is prevented from spreading from the electric heating device 20, thereby improving the separation effect between the plurality of heat exchange parts.

[0036] Optionally, the ratio of the area of ​​any one heat exchange portion to the area of ​​the heat exchanger is greater than or equal to 1 / 6 and less than 1.

[0037] If the ratio of the area of ​​the heat exchange part to the area of ​​the entire heat exchanger is less than 1 / 6, the heat exchanger cavity where the heat exchange part is located is small, the airflow resistance is large, and it is not convenient to match and install the fan, which affects the air outlet and return of the heat exchanger cavity. Therefore, the minimum area of ​​the heat exchange part should be greater than or equal to 1 / 6 of the heat exchanger area. In this way, the heat exchange part can retain the minimum size to facilitate the installation of the fan and the smooth flow of the airflow in the heat exchanger cavity.

[0038] For example, the ratio of the area of ​​one heat exchange portion to the area of ​​the heat exchanger may be 1 / 6, 1 / 5, 2 / 5, 1 / 4, 1 / 3, 1 / 2 or 2 / 3, etc. In practical applications, the number of heat exchange portions and the area of ​​each heat exchange portion may be set according to the number and size of the compartments.

[0039] Combination Figure 2 Optionally, the fan 40 is located in the heat exchanger cavity. When the heat exchanger includes the first heat exchange part 10a and the second heat exchange part 10b, the fan 40 includes a first fan 41 and a second fan 42. A fan partition 60 is provided between the two fans. The fan partition 60 abuts against the partition member 30 and is used to cooperate with the partition member to partition the space where the two adjacent heat exchange parts are located.

[0040] Here, the fan partition 60, the partition 30 and the partition 50 divide the heat exchanger cavity into a first chamber and a second chamber, the first fan 41 and the first heat exchange part 10a are located in the first chamber, the second fan 42 and the second heat exchange part 10b are located in the second chamber, and the first chamber and the second chamber are completely isolated by the fan partition 60, the partition and the partition, so that the first fan 41 and the first heat exchange part 10a are used to cool the corresponding chambers, and the second fan 42 and the second heat exchange part 10b are used to cool the corresponding chambers, so that the cooling of the two chambers is completely independently controlled.

[0041] As an example, the refrigeration device includes a refrigerating compartment and a freezing compartment, the first fan 41 and the first heat exchange part 10a are used to cool the refrigerating compartment; the second fan 42 and the second heat exchange part 10b are used to cool the freezing compartment.

[0042] Combination Figure 3 As shown, the embodiment of the present disclosure provides a control method for defrosting a refrigeration device, comprising:

[0043] S101, when the compressor of the refrigeration equipment is in a standby state, the processor obtains frost layer information of the evaporator and the temperature of the refrigerated compartment.

[0044] S102, the processor controls the status of each fan according to the frost layer information and the temperature of the refrigerated compartment to defrost the evaporator.

[0045] Here, the compressor of the refrigeration equipment is in standby state, indicating that the temperature of each compartment meets the set conditions. At this time, the compressor suspends refrigeration, and each compartment is in a heat preservation state. It can be understood that during the refrigeration period of the compressor, the temperature of each heat exchange part of the evaporator is basically the same, and the demand for cold capacity in the refrigerated compartment is less than that in the frozen compartment. Therefore, during the refrigeration stage, the fan of the refrigerated compartment stops running first, but because the humidity in the refrigerated compartment is greater than that in the frozen compartment, the evaporator part corresponding to the refrigerated compartment (i.e., the refrigerated heat exchange part) is prone to frost first and the frost layer will be relatively thick. Therefore, the frost layer in the refrigerated compartment affects the frosting cycle and defrosting time of the entire machine.

[0046] In the embodiment of the present disclosure, when the compressor is in the standby state, it is determined whether the evaporator needs to be defrosted. Specifically, the frost layer information of the evaporator and the temperature of the cold storage compartment are obtained. The frost layer information of the evaporator can be obtained by detecting the temperature sensor. The thicker the frost layer, the lower the temperature detected by the temperature sensor. Alternatively, the frost layer information can be obtained by image acquisition and processing. If the frost layer information indicates that the frost layer thickness reaches a preset thickness, or the evaporator temperature is lower than a preset temperature, defrosting can be started. Because the temperature of the cold storage compartment is relatively high, the high temperature of the cold storage compartment is used to melt the frost layer on the cold storage heat exchange part corresponding to the cold storage compartment. That is, the fan of the cold storage compartment is controlled to start to defrost. And when the temperature of the cold storage compartment is used for defrosting, the temperature of the freezing compartment is less affected. Among them, although the evaporator is isolated into multiple heat exchange parts, the frost layer on the part of the evaporator (i.e., the freezing heat exchange part) corresponding to the freezing compartment will also be partially or completely melted under the action of heat conduction.

[0047] After the refrigeration fan starts to defrost, in order to avoid large temperature fluctuations in the various compartments of the refrigeration equipment, especially the temperature fluctuations in the refrigeration compartment, it is necessary to control the state of the fan corresponding to the refrigeration compartment based on the temperature of the refrigeration compartment. For example, when the temperature increase of the refrigeration compartment is greater than the preset range, the fan corresponding to the refrigeration compartment is controlled to be turned off. In addition, it should be noted that when the fan corresponding to the refrigeration compartment starts to defrost, the fan corresponding to the freezer compartment is in the off state. This prevents the low temperature of the freezer compartment from affecting the defrosting of the evaporator.

[0048] By using the control method for defrosting refrigeration equipment provided by the embodiment of the present disclosure, the evaporator and the electric heating device are isolated into multiple parts, each of which corresponds to a compartment and is equipped with a corresponding fan. When the refrigeration compressor of the refrigeration equipment is on standby, it can be determined whether defrosting is required based on the frost layer information of the evaporator. If defrosting is required, the status of each fan can be controlled based on the temperature of the refrigerated compartment. The relatively high temperature in the refrigerated compartment can be used to melt the frost on the refrigerated side of the evaporator and part of the frost on the frozen side. In this way, the frosting cycle is extended and the defrosting time of the entire machine is shortened, which helps to further reduce energy consumption.

[0049] Optionally, in step S102, the processor controls the state of each fan according to the frost layer information and the temperature of the refrigerated compartment to defrost the evaporator, including:

[0050] S121, when the frost layer information meets the defrosting conditions, the processor controls the fan corresponding to the refrigerated compartment to start.

[0051] S122, the processor determines the time to turn off the fan corresponding to the refrigerating compartment according to the temperature of the refrigerating compartment, and executes it.

[0052] Here, when the frost layer information of the evaporator meets the defrosting condition, the fan corresponding to the refrigerated compartment is controlled to start so as to utilize the relatively high temperature of the refrigerated compartment to melt the corresponding frost layer. During the defrosting process, although the compressor is in a standby state, the evaporator temperature is relatively low (on the one hand, the existence of the frost layer makes the evaporator temperature relatively low, and on the other hand, the evaporator provides coldness for the freezing compartment, making the evaporator temperature relatively low), so the refrigerated compartment fluctuates less in the early and middle stages of defrosting. In order to avoid the defrosting process causing large fluctuations in the temperature of the refrigerated compartment, the shutdown timing of the fan corresponding to the refrigerated compartment is determined based on the temperature of the refrigerated compartment, and the fan corresponding to the refrigerated compartment is controlled to be shut down when the shutdown timing arrives. In this way, the high temperature of the refrigerated compartment can be utilized for defrosting, and the temperature of the refrigerated compartment can be prevented from fluctuating greatly due to the long defrosting time. Among them, the defrosting conditions include the thickness of the frost layer reaching a preset thickness, or the evaporator temperature being lower than a preset temperature.

[0053] Optionally, in step S122, the processor determines the timing of shutting down the fan corresponding to the refrigerating compartment according to the temperature of the refrigerating compartment, including:

[0054] When the fan corresponding to the refrigerating compartment runs for a first time period and the temperature change of the refrigerating compartment is greater than a first temperature, the processor determines that the fan corresponding to the refrigerating compartment is turned off.

[0055] When the temperature change of the refrigerating compartment is greater than the second temperature, the processor determines that the fan corresponding to the refrigerating compartment is turned off.

[0056] Here, there are two situations when the fan corresponding to the cold storage room (hereinafter referred to as the cold storage fan) is turned off. In the first situation, the cold storage fan is turned on for defrosting, but the frost layer cannot be effectively melted, such as when the frost is severe. In the second situation, the cold storage fan is running and can effectively melt the frost layer; but the temperature of the cold storage room gradually rises due to the gradual increase in the temperature of the compressor standby evaporator. In both of the above situations, the fan corresponding to the cold storage room needs to be controlled to be turned off.

[0057] Specifically, when the refrigeration fan operation time is greater than the first time period, and the temperature change of the refrigeration compartment is greater than the first temperature, it indicates that the temperature of the refrigeration compartment has not dropped after the refrigeration fan is turned on at the beginning of operation. This reflects that the refrigeration heat exchange part corresponding to the refrigeration compartment is severely frosted, and the refrigeration fan cannot effectively defrost by using the relatively high temperature of the refrigeration compartment when it is started. At this time, the refrigeration fan is controlled to be turned off. Among them, the first time period can be 10 minutes to 15 minutes, and the temperature change of the refrigeration compartment = the temperature at the current moment - the temperature when the fan is started. The first temperature can be -1°C, that is, at the beginning of the refrigeration fan startup, the temperature change of the refrigeration compartment should be a negative value, so the first temperature is a negative value.

[0058] After the refrigeration fan starts to defrost, as the refrigeration fan continues to run, the temperature of the refrigeration heat exchange part of the corresponding refrigerated room gradually increases (on the one hand, the residual cold of the compressor standby evaporator gradually dissipates, and on the other hand, the high temperature of the refrigerated room and the heat exchange also increase the evaporator temperature). This causes the temperature of the refrigerated room to begin to rise. When the temperature change of the refrigerated room is greater than or equal to the second temperature, it indicates that the temperature of the refrigerated room has risen significantly. In order to avoid large temperature fluctuations in the refrigerated room, the refrigeration fan is controlled to be turned off at this time to end the defrosting of this stage. Among them, the value range of the second temperature is 2°C to 3°C, such as 2°C. The temperature change of the refrigerated room is as mentioned above.

[0059] In this way, after the refrigeration fan starts to defrost, the state of the refrigeration fan can be controlled based on the temperature change of the refrigeration compartment to effectively defrost and ensure the temperature range of the refrigeration compartment. This defrosting method has low energy consumption and can extend the frosting cycle.

[0060] Combination Figure 4 As shown, the embodiment of the present disclosure provides another control method for defrosting refrigeration equipment, including:

[0061] S101, when the compressor of the refrigeration equipment is in a standby state, the processor obtains frost layer information of the evaporator and the temperature of the refrigerated compartment.

[0062] S102, the processor controls the status of each fan according to the frost layer information and the temperature of the refrigerated compartment to defrost the evaporator.

[0063] S203, the processor controls the state of the electric heating device according to the temperature of the evaporator.

[0064] Here, the high temperature of the refrigeration compartment is used to defrost only the refrigeration heat exchange part of the evaporator. Although the refrigeration heat exchange part corresponding to the freezing compartment can be partially defrosted through heat conduction, the amount of defrosting is small. If the frost layer corresponding to the freezing compartment still meets the defrosting conditions, the electric heating device is controlled to start and defrost it. If the defrosting conditions are not met, the electric heating device is kept in the off state. In this way, it helps to reduce the overall defrosting time of the evaporator, that is, the use time of the electric heating device is shorter.

[0065] In addition, when the electric heating device is turned on, in order to avoid large fluctuations in the temperature of each compartment, each fan is controlled to remain in a closed state, thereby preventing the high temperature of the chamber where the evaporator is located from flowing into each compartment.

[0066] Optionally, in step S203, the processor controls the state of the electric heating device according to the temperature of the evaporator, including:

[0067] When the evaporator temperature is lower than the third temperature, the processor controls the electric heating device to turn on; and controls each fan to be in an off state.

[0068] Here, after the refrigeration heat exchange part corresponding to the refrigeration compartment is defrosted, if the evaporator temperature is still low, that is, the evaporator temperature is less than the third temperature, it indicates that the refrigeration heat exchange part corresponding to the freezing compartment still needs to be defrosted. At this time, the electric heating device is controlled to be turned on. Although the electric heating device is isolated into multiple parts, the electric heating devices of each part generate heat when turned on. If the fan is turned on at this time, the heat generated by the electric heating device will be blown into each compartment, causing the compartment temperature to fluctuate greatly. Therefore, when the electric heating device is turned on, each fan is in a closed state. In this way, the defrosting effect of the entire evaporator is guaranteed.

[0069] In addition, the electric heating device is controlled to be turned off after defrosting is completed. The end of defrosting can still be determined by the temperature of the evaporator. If the evaporator temperature reaches a specified temperature, the specified temperature can be 5°C to 7°C.

[0070] Combination Figure 5 As shown, the embodiment of the present disclosure provides another control method for defrosting refrigeration equipment, including:

[0071] S101, when the compressor of the refrigeration equipment is in a standby state, the processor obtains frost layer information of the evaporator and the temperature of the refrigerated compartment.

[0072] S121, when the frost layer information meets the defrosting conditions, the processor controls the fan corresponding to the refrigerated compartment to start.

[0073] S122, the processor determines the time to turn off the fan corresponding to the refrigerating compartment according to the temperature of the refrigerating compartment, and executes it.

[0074] S123, when the frost layer information does not meet the defrosting condition, the processor controls the state of the fan corresponding to the refrigerating compartment according to the real-time temperature of the refrigerating compartment and the target refrigerating temperature.

[0075] Here, when the compressor is in standby mode, if the frost layer of the evaporator does not meet the defrosting condition, there is no need to defrost the evaporator. At this time, the residual cooling of the evaporator can be supplied to the refrigerated compartment. Specifically, the state of the fan corresponding to the refrigerated compartment can be controlled based on the real-time temperature of the refrigerated compartment and the target refrigerated temperature. Therefore, when the compressor is in standby mode, the cooling capacity of the refrigerated compartment is met without the need for the operation of the compressor, which helps to reduce the energy consumption of the whole machine.

[0076] Optionally, in step S123, the processor controls the state of the fan corresponding to the refrigerating compartment according to the real-time temperature of the refrigerating compartment and the target refrigerating temperature, including:

[0077] When the difference between the real-time temperature and the target refrigeration temperature is greater than the second temperature, the processor controls the fan corresponding to the refrigeration compartment to turn on.

[0078] When the difference between the real-time temperature and the target refrigeration temperature is less than the fourth temperature, the processor controls the fan corresponding to the refrigeration compartment to be turned off.

[0079] Here, the value range of the second temperature is 2°C to 3°C, such as 2°C. The value range of the fourth temperature is -3°C to -2°C, such as -2°C. If the real-time temperature is greater than the target refrigeration temperature, and the difference between the two is greater than the second temperature, it is necessary to provide cold air to the refrigerated compartment. At this time, the fan corresponding to the refrigerated compartment is controlled to turn on. If the real-time temperature is lower than the target refrigeration temperature, and the difference between the two is lower than the fourth temperature, the temperature of the refrigerated compartment meets the requirements. At this time, the fan corresponding to the refrigerated compartment is controlled to stop and turn off. In this way, when the compressor is on standby, the cold air of the evaporator is used to cool the refrigerated compartment, which helps save energy.

[0080] Combination Figure 6 As shown, the embodiment of the present disclosure provides another control method for defrosting refrigeration equipment, including:

[0081] S303: When the temperature of the refrigerating compartment meets the first condition, the processor controls the fan corresponding to the refrigerating compartment to turn off.

[0082] S304: When the temperature of the freezing compartment meets the second condition, the processor controls the fan corresponding to the freezing compartment to turn off.

[0083] S101, when the compressor of the refrigeration equipment is in a standby state, the processor obtains frost layer information of the evaporator and the temperature of the refrigerated compartment.

[0084] S102, the processor controls the status of each fan according to the frost layer information and the temperature of the refrigerated compartment to defrost the evaporator.

[0085] Here, when the compressor is working, the fans of the refrigerated compartment and the freezer compartment are both started, respectively refrigerating the refrigerated compartment and the freezer compartment. Since the refrigerated compartment has a low demand for cooling, the temperature of the refrigerated compartment first meets the first condition. At this time, the fan corresponding to the refrigerated compartment is controlled to be turned off. The fan corresponding to the freezer compartment continues to run until the temperature of the freezer compartment meets the second condition, and then the corresponding fan is controlled to be turned off. Then, the compressor enters the standby state. Among them, when the compressor is working, the relative humidity of the refrigerated compartment is relatively high, so the corresponding refrigerated heat exchange part is easy to frost, and the frost layer is thicker than that of the freezer compartment. After the fan corresponding to the refrigerated compartment is turned off, the frost layer no longer continues to increase. However, the compressor continues to run to cool the freezer compartment, so that the evaporator temperature is less than or equal to the temperature of the freezer compartment. Therefore, after the compressor is on standby, the evaporator can use the residual cold to cool the refrigerated compartment. In this way, after the evaporator is divided, each part independently supplies cold to each compartment through the fan, avoiding the smell of each compartment when there is a single evaporator. And each compartment is independently controlled, so that the energy consumption of the whole machine is low.

[0086] The first condition is that the temperature of the refrigerating compartment is lower than the target refrigerating temperature, and the difference between the two is lower than the fourth temperature. The second condition is that the temperature of the freezing compartment is lower than the target freezing temperature, and the difference between the two is lower than the fourth temperature.

[0087] Combination Figure 7 As shown, an embodiment of the present disclosure provides a control device 100 for defrosting refrigeration equipment, including a processor 101 and a memory 102. Optionally, the device may also include a communication interface 103 and a bus 104. The processor 101, the communication interface 103, and the memory 102 can communicate with each other through the bus 104. The communication interface 103 can be used for information transmission. The processor 101 can call the logic instructions in the memory 102 to execute the control method for defrosting refrigeration equipment of the above embodiment.

[0088] In addition, the logic instructions in the memory 102 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0089] The memory 102 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 101 executes functional applications and data processing by running the program instructions / modules stored in the memory 102, that is, the control method for defrosting refrigeration equipment in the above embodiment is implemented.

[0090] The memory 102 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 102 may include a high-speed random access memory and may also include a non-volatile memory.

[0091] The embodiments of the present disclosure provide a refrigeration device, including: a refrigeration device body, and the above-mentioned control device 100 for defrosting the refrigeration device. The control device 100 for defrosting the refrigeration device is installed on the refrigeration device body. The installation relationship described here is not limited to placement inside the product body, but also includes installation connections with other components of the refrigeration device, including but not limited to physical connections, electrical connections or signal transmission connections. It can be understood by those skilled in the art that the control device 100 for defrosting the refrigeration device can be adapted to a feasible product body, thereby realizing other feasible embodiments.

[0092] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned control method for defrosting a refrigeration device.

[0093] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes.

[0094] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0095] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0096] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0097] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for defrosting refrigeration equipment, characterized in that: The refrigeration equipment includes an evaporator and an electric heating device; the evaporator and the electric heating device are separated into multiple parts by a partition, each part of the evaporator corresponds to a refrigeration compartment or a freezing compartment, and each part of the evaporator is equipped with a fan; the method includes: When the compressor of the refrigeration equipment is in standby mode, obtain the frost layer information of the evaporator and the temperature of the refrigerated compartment; According to the frost layer information and the temperature of the refrigerated compartment, the status of each fan is controlled to defrost the evaporator.

2. The method according to claim 1, characterized in that According to the frost layer information and the temperature of the refrigerated compartment, the status of each fan is controlled, including: When the frost layer information meets the defrosting conditions, the fan corresponding to the refrigerated compartment is controlled to start; According to the temperature of the cold storage room, determine the time to shut down the fan corresponding to the cold storage room and execute it.

3. The method according to claim 2, characterized in that According to the temperature of the cold storage room, determine the time to shut down the fan corresponding to the cold storage room, including: When the fan corresponding to the refrigerating compartment runs for a first time period and the temperature change of the refrigerating compartment is greater than a first temperature, determining that the fan corresponding to the refrigerating compartment is turned off; or, When the temperature change of the refrigerating compartment is greater than or equal to the second temperature, it is determined that the fan corresponding to the refrigerating compartment is turned off.

4. The method according to claim 1, characterized in that: After controlling the states of the fans to defrost the evaporator, the method further includes: According to the temperature of the evaporator, the state of the electric heating device is controlled.

5. The method according to claim 4, characterized in that According to the temperature of the evaporator, the state of the electric heating device is controlled, including: When the evaporator temperature is lower than the third temperature, the electric heating device is controlled to be turned on; and, Control each fan to be in the off state.

6. The method according to claim 1, characterized in that According to the frost information and the temperature of the refrigerated compartment, the status of each fan is controlled, including: When the frost layer information does not meet the defrosting conditions, the state of the fan corresponding to the refrigerated compartment is controlled according to the real-time temperature of the refrigerated compartment and the target refrigerated temperature.

7. The method according to any one of claims 1 to 6, characterized in that: Before the compressor of the refrigeration equipment is in a standby state, the method further comprises: When the temperature of the refrigerated compartment meets the first condition, the fan corresponding to the refrigerated compartment is controlled to be turned off; and, When the temperature of the freezing compartment meets the second condition, the fan corresponding to the freezing compartment is controlled to be turned off.

8. A control device for defrosting refrigeration equipment, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for defrosting refrigeration equipment according to any one of claims 1 to 7 when running the program instructions.

9. A refrigeration device, characterized in that: include: Refrigeration equipment body; The control device for defrosting a refrigeration device as claimed in claim 8 is installed on the refrigeration device body.

10. A computer-readable storage medium storing program instructions, characterized in that: When the program instructions are executed, the computer is used to execute the control method for defrosting refrigeration equipment according to any one of claims 1 to 7.

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