Control method and control device of a refrigeration appliance and refrigeration appliance

Abstract

This application discloses a control method, control device, and refrigeration equipment, belonging to the technical field of refrigeration equipment. The refrigeration equipment includes an evaporator, which forms a capacitor structure with a first electrode plate. The capacitor structure is periodically charged and discharged between a first voltage and a second voltage. The method includes: acquiring a first duration for the capacitor structure to charge from the first voltage to the second voltage; controlling the refrigeration equipment to perform a defrosting action when the first duration is greater than or equal to a preset duration threshold; controlling the refrigeration equipment to stop the defrosting action when the defrosting action reaches a first target duration, and acquiring a second duration for the capacitor structure to charge from the first voltage to the second voltage; updating the preset duration threshold when the second duration is greater than the factory-set charging time of the capacitor structure. This can improve the accuracy of defrosting detection and ensure that the refrigeration equipment defrosts at the appropriate time.

Description

Technical Field

[0001] This application belongs to the field of refrigeration equipment technology, and particularly relates to a control method, control device, and refrigeration equipment for refrigeration equipment. Background Technology

[0002] When refrigeration equipment is running, the temperature of the evaporator surface drops below freezing point, causing water vapor in the air to condense and freeze into frost. This frozen frost layer hinders heat exchange, reduces refrigeration efficiency, increases energy consumption, and may affect the normal operation and lifespan of the equipment. Therefore, defrosting is necessary. Currently, defrosting is detected by installing a capacitor at the evaporator and monitoring changes in its capacitance.

[0003] However, the parameters of the capacitor may change during the use of the refrigeration equipment. A fixed defrost detection method will reduce the accuracy of defrost detection, resulting in inappropriate defrost timing for the refrigeration equipment. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a control method, control device, and refrigeration equipment for refrigeration equipment, which can improve the accuracy of defrosting detection and ensure that the refrigeration equipment defrosts at the appropriate time.

[0005] In a first aspect, this application provides a control method for a refrigeration device, the refrigeration device including an evaporator, the evaporator forming a capacitor structure with a first electrode plate, the capacitor structure being periodically charged and discharged between a first voltage and a second voltage, the method comprising:

[0006] The first duration for the capacitor structure to charge from the first voltage to the second voltage is obtained;

[0007] If the first duration is greater than or equal to a preset duration threshold, the refrigeration device is controlled to perform a defrosting action;

[0008] When the refrigeration equipment performs the defrosting action for a first target duration, the refrigeration equipment is controlled to stop the defrosting action, and a second duration is obtained for the capacitor structure to charge from the first voltage to the second voltage.

[0009] If the second duration is greater than the factory charging duration of the capacitor structure, the preset duration threshold is updated.

[0010] According to the control method of the refrigeration equipment of this application, when the first time of the capacitor structure charging from the first voltage to the second voltage is greater than or equal to a preset time threshold, it is determined that there is a lot of frost in the refrigeration equipment, and the refrigeration equipment is controlled to perform a defrosting action. After the refrigeration equipment stops defrosting, when the refrigeration equipment has almost no frost, the second time of the capacitor structure charging from the first voltage to the second voltage is obtained. If the second time is greater than the factory charging time of the capacitor structure, it is determined that there is debris between the plates of the capacitor structure, and the preset time threshold is increased. After updating the preset time threshold, the first time is compared with the new preset time threshold. When the first time is greater than the new preset time threshold, the refrigeration equipment is controlled to perform a defrosting action. This can improve the accuracy of defrosting detection and ensure that the refrigeration equipment defrosts at the appropriate time.

[0011] According to one embodiment of this application, updating the preset duration threshold includes:

[0012] Based on the second duration, a new preset duration threshold is determined.

[0013] According to one embodiment of this application, after obtaining the second duration for which the capacitor structure is charged from the first voltage to the second voltage, the method further includes:

[0014] If the second duration is less than the factory charging duration, the refrigeration equipment is controlled to perform the defrosting action according to a preset time interval.

[0015] According to one embodiment of this application, after controlling the refrigeration equipment to stop the defrosting operation, the method further includes:

[0016] If the number of times the refrigeration equipment performs the defrosting action within the target time period is greater than the target number of defrosting actions, the refrigeration equipment is controlled to perform the defrosting action for a second target duration, which is greater than the first target duration.

[0017] According to one embodiment of this application, after controlling the refrigeration equipment to stop the defrosting operation, the method further includes:

[0018] If the number of times the refrigeration equipment performs the defrosting action within the target time period is less than the target number of defrosting operations, the corresponding environmental humidity information within the target time period is obtained.

[0019] Based on the ambient humidity information, the refrigeration equipment is controlled to perform the defrosting action.

[0020] According to one embodiment of this application, controlling the refrigeration equipment to perform the defrosting action based on the ambient humidity information includes:

[0021] When the ambient humidity information is greater than or equal to the preset ambient humidity, the refrigeration equipment is controlled to perform the defrosting action at preset time intervals.

[0022] According to one embodiment of this application, the initial preset duration threshold is determined based on the factory charging duration.

[0023] Secondly, this application provides a refrigeration device, which includes:

[0024] An evaporator, wherein the evaporator and a first electrode plate form a capacitor structure, and the capacitor structure is periodically charged and discharged between a first voltage and a second voltage;

[0025] Control device, the control device being connected to the capacitor structure;

[0026] The control device includes:

[0027] The acquisition module is used to acquire the first duration for the capacitor structure to charge from the first voltage to the second voltage;

[0028] The first processing module is used to control the refrigeration equipment to perform a defrosting action when the first duration is greater than or equal to a preset duration threshold.

[0029] The second processing module is used to control the refrigeration equipment to stop the defrosting action when the defrosting action of the refrigeration equipment reaches the first target duration, and to obtain the second duration of the capacitor structure charging from the first voltage to the second voltage;

[0030] The third processing module is used to update the preset duration threshold when the second duration is greater than or equal to the factory charging duration of the capacitor structure.

[0031] According to the refrigeration equipment of this application, when the first time for the capacitor structure to charge from the first voltage to the second voltage is greater than or equal to a preset time threshold, it is determined that the refrigeration equipment has a lot of frost, and the refrigeration equipment is controlled to perform a defrosting action. After the refrigeration equipment stops defrosting, when the refrigeration equipment has almost no frost, the second time for the capacitor structure to charge from the first voltage to the second voltage is obtained. If the second time is greater than the factory charging time of the capacitor structure, it is determined that there are impurities between the plates of the capacitor structure, and the preset time threshold is increased. After updating the preset time threshold, the first time is compared with the new preset time threshold. When the first time is greater than the new preset time threshold, the refrigeration equipment is controlled to perform a defrosting action, which can improve the accuracy of defrosting detection and ensure that the refrigeration equipment defrosts at the appropriate time.

[0032] Thirdly, this application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the control method of the cooling device as described in the first aspect above.

[0033] Fourthly, this application provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method for the refrigeration device as described in the first aspect above.

[0034] Fifthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the control method for the refrigeration equipment as described in the first aspect above.

[0035] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0036] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0037] Figure 1 This is one of the flowcharts illustrating the control method for a refrigeration device provided in the embodiments of this application;

[0038] Figure 2 This is a schematic diagram of the structure of the refrigeration equipment provided in the embodiments of this application;

[0039] Figure 3 This is a schematic diagram of air circulation in the refrigeration equipment provided in the embodiments of this application;

[0040] Figure 4 This is a schematic diagram of the capacitor structure provided in the embodiments of this application;

[0041] Figure 5 This is a second schematic flowchart of the control method for the refrigeration equipment provided in the embodiments of this application;

[0042] Figure 6 This is the third flowchart illustrating the control method for the refrigeration equipment provided in the embodiments of this application;

[0043] Figure 7 This is a schematic diagram of the structure of the control device for the refrigeration equipment provided in the embodiments of this application;

[0044] Figure 8 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application.

[0045] Figure label:

[0046] Refrigeration equipment 200, storage room 210, evaporator 220, fan 230, heating element 240.

[0047] The capacitor structure is 410, the first plate is 411, and the power supply is 420. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0049] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0050] It should be noted that the refrigeration equipment 200 in this embodiment can be understood as a refrigeration storage device in a broad sense, including but not limited to refrigerators, freezers, display cases, beverage cabinets, wine cabinets, refrigerated display cases, and refrigerated vending machines. The refrigeration equipment 200 has various structural forms and a wide range of applications.

[0051] In this embodiment, the refrigeration device 200 can be a vending machine. The temperature of the storage compartment 210 of the vending machine can be below 0 degrees Celsius. In some embodiments, the temperature of the storage compartment 210 of the vending machine can be from -5°C to -30°C, such as -25°C. The vending machine is used to sell frozen goods, such as ice cream and ice cubes.

[0052] The control method, control device, refrigeration equipment 200, electronic equipment, and readable storage medium of the refrigeration equipment 200 provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0053] The control method of the refrigeration equipment 200 can be applied to the terminal, and can be executed by the hardware or software in the terminal.

[0054] The terminal includes, but is not limited to, portable communication devices such as mobile phones or tablets with touch-sensitive surfaces (e.g., touchscreen displays and / or touchpads). It should also be understood that, in some embodiments, the terminal may not be a portable communication device, but rather a desktop computer with touch-sensitive surfaces (e.g., touchscreen displays and / or touchpads).

[0055] The following embodiments describe a terminal including a display and a touch-sensitive surface. However, it should be understood that the terminal may include one or more other physical user interface devices such as a physical keyboard, mouse, and joystick.

[0056] The control method for the refrigeration device 200 provided in this application embodiment can be executed by an electronic device or a functional module or functional entity in an electronic device that can implement the control method for the refrigeration device 200. The electronic devices mentioned in this application embodiment include, but are not limited to, mobile phones, tablet computers, computers, etc. The control method for the refrigeration device 200 provided in this application embodiment is described below using an electronic device as the execution subject.

[0057] like Figure 2 As shown, the refrigeration device 200 of this application embodiment includes a compressor (not shown in the figure), an evaporator 220, etc., wherein the compressor drives the refrigeration cycle by compressing the refrigerant, and the evaporator 220 achieves refrigeration by absorbing heat through the evaporation of the refrigerant.

[0058] The refrigeration device 200 of this application embodiment has a storage compartment 210, which is a space for storing food and other items that can be refrigerated or frozen.

[0059] The storage room 210 may have an opening for users to access items stored in the storage room 210. The opening of the storage room 210 may be equipped with a door for opening or closing the opening of the storage room 210.

[0060] Understandably, when the door is closed, the storage room 210 is a sealed space that can isolate the refrigeration equipment 200 from the external environment.

[0061] like Figure 3 As shown, the cold air generated by the evaporator 220 is driven by the fan 230 to flow to the storage compartment 210, providing cooling capacity to the storage compartment 210. After passing through the storage compartment 210, the cold air blows towards the evaporator 220, forming an air circulation. When the humid air comes into contact with the cool surface of the evaporator 220, the water vapor in the air may condense into water droplets or even freeze to form frost.

[0062] The control method of the refrigeration equipment 200 in this application embodiment is used to determine whether the equipment such as the evaporator 220 in the refrigeration equipment 200 is to defrost, and to perform the defrosting action when it is determined to defrost.

[0063] like Figure 4 As shown, the evaporator 220 and the first electrode plate 411 form a capacitor structure 410, which is periodically charged and discharged between a first voltage and a second voltage.

[0064] The first electrode plate 411 is a flat plate made of a material with good conductivity, such as metal or graphene. The capacitor structure 410 is an electrical component that can store and release charge.

[0065] In this embodiment, a periodic square wave signal can be sent to the capacitor structure 410 by the power supply 420 inside the cooling device 200 or by the external power supply 420. Within one square wave signal cycle, the capacitor structure 410 starts charging when the square wave signal is at a high level and starts discharging when the square wave signal is at a low level. The capacitor structure 410 is periodically charged and discharged between the first voltage and the second voltage.

[0066] The first voltage can be the voltage when the capacitor structure 410 is fully discharged, i.e., the first voltage can be 0. The second voltage is the stable voltage of the capacitor structure 410 after it is fully charged.

[0067] The control method of the refrigeration equipment 200 in this application embodiment can perform defrosting detection by charging the capacitor structure 410 from a first voltage to a second voltage for a first period of time.

[0068] like Figure 1 As shown, the control method of the refrigeration equipment 200 includes steps 110-140.

[0069] Step 110: Obtain the first duration for the capacitor structure 410 to charge from the first voltage to the second voltage.

[0070] In this step, the capacitor structure 410 can be connected to a timer, which is used to record the first duration of each charge from the first voltage to the second voltage during the periodic charging and discharging process of the capacitor structure 410.

[0071] Step 120: If the first duration is greater than or equal to the preset duration threshold, control the refrigeration equipment 200 to perform the defrosting action.

[0072] Among them, the preset duration threshold is a preset value. When the refrigeration equipment 200 leaves the factory, an initial preset duration threshold can be set. The initial preset duration threshold can be set according to the design parameters of the refrigeration equipment 200 and the operating environment that the refrigeration equipment 200 is adapted to.

[0073] In this embodiment, the larger the capacitance value of the capacitor structure 410, the longer it takes for the capacitor structure 410 to charge an equal amount of power. The capacitance value of the capacitor structure 410 can be determined based on the time it takes for the capacitor structure 410 to charge or discharge the corresponding amount of power.

[0074] According to the formula for calculating the capacitance of a parallel plate When air is used as the dielectric, the formula for calculating capacitance is as follows: When ice is used as the dielectric, the formula for calculating capacitance is as follows: When ice forms between the plates of capacitor structure 410, the capacitance value will increase significantly, resulting in a longer first duration corresponding to capacitor structure 410.

[0075] In this step, when the first duration is greater than or equal to the preset duration threshold, it indicates that there is a lot of frost on the evaporator 220, and the refrigeration equipment 200 is controlled to perform a defrosting action to defrost the evaporator 220.

[0076] In this embodiment, the evaporator 220 of the refrigeration equipment 200 can be equipped with heating devices 240 such as heating tubes, and the heating tubes can be controlled to heat the evaporator 220 to achieve defrosting. The heating tubes can be defrosting heating steel tubes or defrosting heating aluminum tubes.

[0077] Alternatively, an electric valve can be installed at the discharge end of the compressor. When the refrigeration equipment 200 performs the defrosting action, the electric valve is controlled to open, and the hot gas discharged from the compressor passes through the evaporator 220 to defrost the evaporator 220.

[0078] Step 130: When the refrigeration equipment 200 performs the defrosting action for the first target duration, control the refrigeration equipment 200 to stop the defrosting action and obtain the second duration for the capacitor structure 410 to charge from the first voltage to the second voltage.

[0079] The first target duration can be a preset value, which can be determined based on the design of the refrigeration system, the defrosting method of the refrigeration equipment 200, and the cumulative running time of the refrigeration equipment 200.

[0080] In this embodiment, after the refrigeration device 200 performs the defrosting action and the defrosting action has continued for a preset period of time, namely the first target duration, the heating device such as the heating tube is turned off, so that the refrigeration device 200 stops the defrosting action.

[0081] In this embodiment, when the refrigeration device 200 performs the defrosting operation, the power supply 420 that charges the capacitor structure 410 can be turned off. After the refrigeration device 200 stops the defrosting operation, the power supply 420 is turned on to charge the capacitor structure 410, so that the capacitor structure 410 is charged from the first voltage to the second voltage, and obtains the second duration.

[0082] It should be noted that the first duration refers to the duration of each charge of capacitor structure 410 from the first voltage to the second voltage, and the second duration refers to the duration of the first charge of capacitor structure 410 from the first voltage to the second voltage after the refrigeration device 200 stops defrosting.

[0083] Step 140: If the second duration is greater than the factory charging duration of the capacitor structure 410, update the preset duration threshold.

[0084] The factory charging time can be the time it takes for the capacitor structure 410 of the refrigeration equipment 200 to charge from the first voltage to the second voltage when it leaves the factory.

[0085] In this embodiment, during the use of the refrigeration device 200, if dust or other foreign objects appear between the evaporator 220 and the first electrode plate 411, the longer it takes for the capacitor structure 410 to charge to the same amount of power, the longer the first time will be compared with the initial preset time threshold. This may result in the refrigeration device 200 being controlled to perform a defrosting action when the amount of frost on the evaporator 220 is small.

[0086] When the second duration is obtained, the refrigeration equipment 200 has performed the defrosting action on the evaporator 220, and the evaporator 220 has little or no frost. When dust or other foreign objects appear between the evaporator 220 and the first electrode plate 411, the second duration can be approximately equal to the factory charging duration. When the second duration is longer than the factory charging duration, it can be considered that dust or other foreign objects appear between the evaporator 220 and the first electrode plate 411, and the preset duration threshold is updated, which can be to increase the preset duration threshold.

[0087] After updating the preset duration threshold, the first duration is compared with the new preset duration threshold. When the first duration is longer than the new preset duration threshold, the refrigeration equipment 200 is controlled to perform a defrosting action.

[0088] According to the control method of the refrigeration device 200 provided in the embodiments of this application, when the first time of the capacitor structure 410 charging from the first voltage to the second voltage is greater than or equal to a preset time threshold, it is determined that the refrigeration device 200 has a lot of frost, and the refrigeration device 200 is controlled to perform a defrosting action. After the refrigeration device 200 stops the defrosting action, when the refrigeration device 200 has almost no frost, the second time of the capacitor structure 410 charging from the first voltage to the second voltage is obtained. If the second time is greater than the factory charging time of the capacitor structure 410, it is determined that there are impurities between the plates of the capacitor structure 410, and the preset time threshold is increased. After updating the preset time threshold, the first time is compared with the new preset time threshold. When the first time is greater than the new preset time threshold, the refrigeration device 200 is controlled to perform a defrosting action. This can improve the accuracy of defrosting detection and ensure that the refrigeration device 200 defrosts at the appropriate time.

[0089] In some embodiments, such as Figure 5 As shown, update the preset duration threshold, including:

[0090] Step 141: If the second duration is greater than the factory charging duration of the capacitor structure 410, a new preset duration threshold is determined based on the second duration.

[0091] In this embodiment, a new preset duration threshold can be obtained based on the second duration and the first preset duration, wherein the first preset duration is a pre-set duration that can be determined based on the amount of frost on the evaporator 220.

[0092] In practice, the second duration can be added to the first preset duration to obtain a new preset duration threshold.

[0093] In some embodiments, after obtaining a second duration for which the capacitor structure 410 charges from a first voltage to a second voltage, the method further includes:

[0094] If the second duration is less than the factory charging duration, the refrigeration equipment 200 is controlled to perform defrosting action according to the preset time interval.

[0095] In this embodiment, during the actual operation of the refrigeration equipment 200, dust continuously accumulates between the plates of the capacitor structure 410, and the time required for the capacitor structure 410 to charge an equal amount of electricity becomes longer. The second time is generally greater than or equal to the factory charging time. When the second time is less than the factory charging time, it indicates that the capacitor structure 410 or other components are abnormal. The control of the refrigeration equipment 200 to perform defrosting action based on the comparison between the first time and the preset time threshold is stopped, and the control of the refrigeration equipment 200 to perform defrosting action according to the preset time interval is switched.

[0096] The preset time interval is a pre-defined time interval that can be set based on the humidity, temperature, and other environmental factors of the environment in which the refrigeration equipment 200 is located.

[0097] In some embodiments, after controlling the refrigeration equipment 200 to stop the defrosting operation, the method further includes:

[0098] If the number of times the refrigeration equipment 200 performs defrosting action within the target time period is greater than the target number of defrosting actions, the refrigeration equipment 200 is controlled to perform the next defrosting action to reach the second target duration, which is greater than the first target duration.

[0099] The target time period can be the time period ending when the refrigeration equipment 200 stops defrosting. The duration of the target time period can be preset and can be 12 hours or 24 hours.

[0100] It is understandable that each time the refrigeration equipment stops defrosting, there is a corresponding target time period.

[0101] The target number of defrost cycles can be a preset value. The target number of defrost cycles and the duration of the target time period can be set according to the humidity of the environment where the refrigeration equipment 200 is located.

[0102] For example, if the average humidity of the environment during the target period is 60%-80% and the target period lasts for 12 hours, the target number of defrost cycles is 2. If the ambient humidity is less than 20%, the environment is considered to be relatively dry, the target period lasts for 24 hours, and the target number of defrost cycles is 1.

[0103] In this embodiment, under normal circumstances, the number of times the refrigeration device 200 performs defrosting action within the target time period is equal to the target number of defrosting actions. When the number of times the refrigeration device 200 performs defrosting action within the target time period is greater than the target number of defrosting actions, it indicates that the refrigeration device 200 is not performing defrosting action sufficiently. The defrosting time is increased when the refrigeration device 200 performs defrosting action next time, that is, the refrigeration device 200 is controlled to reach the second target time when it performs defrosting action next time. The second target time can be the first target time multiplied by 1.5.

[0104] In some embodiments, after controlling the refrigeration equipment 200 to stop the defrosting operation, the method further includes:

[0105] If the number of defrosting actions performed by the refrigeration equipment 200 during the target time period is less than the target number of defrosting actions, the corresponding environmental humidity information during the target time period is obtained.

[0106] Based on the ambient humidity information, the refrigeration equipment 200 is controlled to perform a defrosting action.

[0107] Among them, the ambient humidity information is the humidity information of the environment in which the refrigeration equipment 200 is located during the target time period. It can be the average ambient humidity during the target time period. The preset ambient humidity is a preset value. Different target time periods and defrosting times can correspond to different preset ambient humidity.

[0108] In this embodiment, under normal circumstances, the number of times the refrigeration device 200 performs defrosting action within the target time period is equal to the target number of defrosting actions. When the number of times the refrigeration device 200 performs defrosting action within the target time period is less than the target number of defrosting actions, the system determines whether the defrosting process of the refrigeration device 200 is abnormal based on the environmental humidity information and by comparing the first duration with the preset duration threshold.

[0109] In some embodiments, based on ambient humidity information, controlling the refrigeration equipment 200 to perform a defrosting action includes:

[0110] When the ambient humidity information is greater than or equal to the preset ambient humidity, the refrigeration equipment 200 is controlled to perform defrosting action at preset time intervals.

[0111] In this embodiment, when the ambient humidity information is greater than or equal to the preset ambient humidity, it indicates that the number of times the refrigeration device 200 performs the defrosting action within the target time period is insufficient. The process of controlling the refrigeration device 200 to perform the defrosting action by comparing the first duration with the preset duration threshold is stopped. Instead, the process of controlling the refrigeration device 200 to perform the defrosting action according to the preset time interval is switched to controlling the refrigeration device 200 to perform the defrosting action according to the preset time interval.

[0112] In some embodiments, the initial preset duration threshold is determined based on the factory charging duration.

[0113] In this embodiment, the initial preset duration threshold is the preset duration threshold when the refrigeration device 200 leaves the factory, that is, the preset duration threshold that has not been updated.

[0114] In this embodiment, an initial preset duration threshold can be obtained based on the factory charging time and a first preset duration, wherein the first preset duration is a pre-set duration that can be determined based on the amount of frost on the evaporator 220.

[0115] In practice, the initial preset duration threshold can be obtained by adding the factory charging time to the first preset duration.

[0116] The following is a specific embodiment of a control method for a refrigeration device 200.

[0117] like Figure 6 As shown, in step one, the cooling device 200 is detected to be powered on, and the positive power supply 420 voltage Vcc begins to send a set square wave signal to the capacitor structure 410. At the same time, the analog-to-digital converter A / D port of the control chip begins to detect the voltage of the capacitor structure 410.

[0118] Step 2: Record the first time t of the capacitor structure 410 rising from the first voltage 0 to the second voltage Vc.

[0119] Step 3: Determine whether t is greater than or equal to the preset time threshold T, where T = T1 + T2, T1 is the factory charging time of capacitor structure 410, and T2 is the first preset time. The first preset time represents the charging time that increases when the refrigeration equipment 200 frosts to a certain extent.

[0120] The factory charging time can be the time it takes for the capacitor structure 410 of the refrigeration equipment 200 to charge from the first voltage to the second voltage when it leaves the factory.

[0121] Step 4: When t is greater than or equal to T, turn off Vcc, turn on the defrosting heating wire, and control the refrigeration equipment 200 to perform the defrosting action according to the first target duration, where the first target duration is a preset duration.

[0122] Step 5: After defrosting is complete, continue to turn on Vcc to detect the amount of frost, and at the same time record the number of defrost cycles within the target time period plus 1.

[0123] Step 6: Determine whether the number of defrosting actions performed within the target time period is greater than the target number of defrosting actions, i.e. whether it is greater than the first boundary value, within the preset number of defrosting actions.

[0124] Step 7: Check if the number of defrosting actions performed within the target time period is greater than the target number of defrosting actions. If it is within the preset number of defrosting actions, the next time the defrosting action is performed, the duration will be increased by 50% based on the first target duration.

[0125] Step 8: Immediately detect the second time T0 of the capacitor structure 410 charging from the first voltage to the second voltage, and determine whether T0 is greater than or equal to T1.

[0126] Step 9: If T0 is greater than or equal to T1, replace T1 with T0 and update T.

[0127] Step 10: When T0 is less than T1, control the refrigeration equipment 200 to perform defrosting action according to the preset time interval.

[0128] Step 11: If the number of defrosting actions performed within the target time period is less than the target number of defrosting actions, i.e. less than the first boundary value, obtain the ambient humidity information within the target time period and determine whether the ambient humidity information is less than the preset ambient humidity.

[0129] Step 12: When the ambient humidity information is greater than or equal to the preset ambient humidity, control the refrigeration equipment 200 to perform defrosting action according to the preset time interval.

[0130] Step 13: When the ambient humidity information is less than the preset ambient humidity, control the refrigeration equipment 200 to perform defrosting judgment based on the first time duration of charging from the first voltage to the second voltage using the capacitor structure 410.

[0131] The control method for the refrigeration equipment 200 provided in this application embodiment can be executed by the control device of the refrigeration equipment 200. This application embodiment uses the control device of the refrigeration equipment 200 executing the control method as an example to illustrate the control device of the refrigeration equipment 200 provided in this application embodiment.

[0132] This application also provides a refrigeration device 200.

[0133] The refrigeration device 200 includes an evaporator 220, which forms a capacitor structure 410 with a first electrode plate 411. The capacitor structure 410 is periodically charged and discharged between a first voltage and a second voltage.

[0134] The refrigeration equipment 200 also includes a control device, which is connected to the capacitor structure 410.

[0135] like Figure 7 As shown, the control device of the refrigeration equipment 200 includes:

[0136] The acquisition module 710 is used to acquire the first duration of the capacitor structure 410 charging from the first voltage to the second voltage;

[0137] The first processing module 720 is used to control the refrigeration equipment 200 to perform a defrosting action when the first duration is greater than or equal to a preset duration threshold.

[0138] The second processing module 730 is used to control the refrigeration equipment 200 to stop the defrosting action when the defrosting action of the refrigeration equipment 200 reaches the first target duration, and to obtain the second duration of the capacitor structure 410 charging from the first voltage to the second voltage.

[0139] The third processing module 740 is used to update the preset duration threshold when the second duration is greater than or equal to the factory charging duration of the capacitor structure 410.

[0140] According to the refrigeration device 200 provided in the embodiments of this application, when the first time of charging the capacitor structure 410 from the first voltage to the second voltage is greater than or equal to a preset time threshold, it is determined that the refrigeration device 200 has a lot of frost, and the refrigeration device 200 is controlled to perform a defrosting action. After the refrigeration device 200 stops the defrosting action, when the refrigeration device 200 has almost no frost, the second time of charging the capacitor structure 410 from the first voltage to the second voltage is obtained. If the second time is greater than the factory charging time of the capacitor structure 410, it is determined that there are impurities between the plates of the capacitor structure 410, and the preset time threshold is increased. After updating the preset time threshold, the first time is compared with the new preset time threshold. When the first time is greater than the new preset time threshold, the refrigeration device 200 is controlled to perform a defrosting action, which can improve the accuracy of defrosting detection and ensure that the refrigeration device 200 defrosts at the appropriate time.

[0141] In some embodiments, the third processing module 740 is configured to determine a new preset duration threshold based on the second duration.

[0142] In some embodiments, the third processing module 740 is configured to control the refrigeration device 200 to perform a defrosting action at a preset time interval when the second duration is less than the factory charging duration.

[0143] In some embodiments, the second processing module 730 is configured to control the refrigeration device 200 to perform a second target duration for the next defrosting action when the number of defrosting actions performed by the refrigeration device 200 within a target time period is greater than the target number of defrosting actions. The second target duration is greater than the first target duration.

[0144] In some embodiments, the second processing module 730 is used to obtain the corresponding environmental humidity information during the target time period when the number of defrosting actions performed by the refrigeration device 200 during the target time period is less than the target number of defrosting actions.

[0145] Based on the ambient humidity information, the refrigeration equipment 200 is controlled to perform a defrosting action.

[0146] In some embodiments, the second processing module 730 is used to control the refrigeration device 200 to perform a defrosting action at a preset time interval when the ambient humidity information is greater than or equal to the preset ambient humidity.

[0147] In some embodiments, the initial preset duration threshold is determined based on the factory charging duration.

[0148] The control device for the cooling device 200 in this embodiment can be an electronic device or a component within an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the electronic device can be an ultra-mobile personal computer (UMPC), or a server, personal computer (PC), etc., and this embodiment does not impose specific limitations.

[0149] The control device for the refrigeration equipment 200 in this embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this embodiment does not specifically limit the specific operating system used.

[0150] The control device for the refrigeration equipment 200 provided in this application embodiment can realize Figure 1 , Figure 5 and Figure 6 The various processes implemented in the method implementation examples will not be described again here to avoid repetition.

[0151] In some embodiments, such as Figure 8As shown, this application embodiment also provides an electronic device 800, including a processor 801, a memory 802, and a computer program stored in the memory 802 and executable on the processor 801. When the program is executed by the processor 801, it implements the various processes of the control method embodiment of the cooling device 200 described above and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0152] This application also provides a non-transitory computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the control method embodiment of the refrigeration device 200 described above and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0153] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0154] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the control method of the refrigeration device 200 described above.

[0155] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0156] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the control method embodiment of the above-described refrigeration device 200, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0157] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0158] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0159] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0160] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

[0161] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0162] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A control method for a refrigeration device, characterized in that, The refrigeration device includes an evaporator, which forms a capacitor structure with a first electrode plate. The capacitor structure is periodically charged and discharged between a first voltage and a second voltage. The method includes: The first duration for the capacitor structure to charge from the first voltage to the second voltage is obtained; If the first duration is greater than or equal to a preset duration threshold, the refrigeration device is controlled to perform a defrosting action; When the refrigeration equipment performs the defrosting action for a first target duration, the refrigeration equipment is controlled to stop the defrosting action, and a second duration is obtained for the capacitor structure to charge from the first voltage to the second voltage. If the second duration is greater than the factory charging duration of the capacitor structure, the preset duration threshold is updated.

2. The control method for the refrigeration equipment according to claim 1, characterized in that, Updating the preset duration threshold includes: Based on the second duration, a new preset duration threshold is determined.

3. The control method for the refrigeration equipment according to claim 1, characterized in that, After obtaining the second duration for which the capacitor structure charges from the first voltage to the second voltage, the method further includes: If the second duration is less than the factory charging duration, the refrigeration equipment is controlled to perform the defrosting action according to a preset time interval.

4. The control method for the refrigeration equipment according to any one of claims 1-3, characterized in that, After the refrigeration equipment is stopped from defrosting, the method further includes: If the number of times the refrigeration equipment performs the defrosting action within the target time period is greater than the target number of defrosting actions, the refrigeration equipment is controlled to perform the defrosting action for a second target duration, which is greater than the first target duration.

5. The control method for the refrigeration equipment according to any one of claims 1-3, characterized in that, After the refrigeration equipment is stopped from defrosting, the method further includes: If the number of times the refrigeration equipment performs the defrosting action within the target time period is less than the target number of defrosting operations, the corresponding environmental humidity information within the target time period is obtained. Based on the ambient humidity information, the refrigeration equipment is controlled to perform the defrosting action.

6. The control method for the refrigeration equipment according to claim 5, characterized in that, The step of controlling the refrigeration equipment to perform the defrosting action based on the ambient humidity information includes: When the ambient humidity information is greater than or equal to the preset ambient humidity, the refrigeration equipment is controlled to perform the defrosting action at preset time intervals.

7. The control method for the refrigeration equipment according to any one of claims 1-3, characterized in that, The initial preset duration threshold is determined based on the factory charging duration.

8. A refrigeration device, characterized in that, include: An evaporator, wherein the evaporator and a first electrode plate form a capacitor structure, and the capacitor structure is periodically charged and discharged between a first voltage and a second voltage; Control device, the control device being connected to the capacitor structure; The control device includes: The acquisition module is used to acquire the first duration for the capacitor structure to charge from the first voltage to the second voltage; The first processing module is used to control the refrigeration equipment to perform a defrosting action when the first duration is greater than or equal to a preset duration threshold. The second processing module is used to control the refrigeration equipment to stop the defrosting action when the defrosting action of the refrigeration equipment reaches the first target duration, and to obtain the second duration of the capacitor structure charging from the first voltage to the second voltage; The third processing module is used to update the preset duration threshold when the second duration is greater than or equal to the factory charging duration of the capacitor structure.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the control method for the refrigeration equipment as described in any one of claims 1-7.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the control method for the refrigeration equipment as described in any one of claims 1-7.

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