Refrigerant adjustment method, apparatus, refrigerator, and computer readable storage medium

Abstract

This application discloses a refrigerant regulation method, apparatus, refrigerator, and computer-readable storage medium. The method includes: acquiring an ambient temperature and the number of refrigeration compartments; if the ambient temperature is lower than a preset ambient temperature and the number of refrigeration compartments is lower than a preset compartment number threshold, determining a first target refrigerant amount based on the ambient temperature and the number of refrigeration compartments; controlling the refrigerant storage device to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and controlling the refrigeration system to perform refrigeration based on the remaining refrigerant. By determining the current refrigerant amount required by the refrigerator based on the ambient temperature and the number of refrigeration compartments, and storing excess refrigerant in the refrigerant storage device, the amount of refrigerant in the refrigerator is prevented from being excessive when the compressor's cooling capacity decreases, thereby reducing the refrigerator's energy consumption.

Description

Technical Field

[0001] This application relates to the field of refrigerator control technology, specifically to a refrigerant regulation method, device, refrigerator, and computer-readable storage medium. Background Technology

[0002] Traditional household refrigerators require varying cooling capacities depending on the environment and operating conditions. However, thanks to the development of inverter technology, refrigerators using inverter compressors can adjust their speed under different ambient temperatures and operating conditions, thereby changing their cooling capacity.

[0003] When the compressor speed in a refrigerator decreases, the cooling capacity of the compressor decreases, and the required amount of refrigerant also decreases accordingly. However, if the amount of refrigerant remains constant, the amount of refrigerant in a refrigerator is already fixed. This would result in an excess of refrigerant, causing the evaporator temperature to rise, leading to poorer cooling efficiency and increased energy consumption. Therefore, how to reduce refrigerator energy consumption when the compressor's cooling capacity decreases is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a refrigerant regulation method, apparatus, refrigerator, and computer-readable storage medium that can reduce the refrigerator's energy consumption when the compressor's cooling capacity decreases.

[0005] In a first aspect, embodiments of this application provide a refrigerant regulation method, the method comprising:

[0006] Obtain the ambient temperature and the number of cooling rooms;

[0007] If the ambient temperature is lower than the preset ambient temperature and the number of refrigeration rooms is less than the preset number threshold, then the first target refrigerant quantity is determined based on the ambient temperature and the number of refrigeration rooms.

[0008] The refrigerant storage device is controlled to draw refrigerant corresponding to the first target amount of refrigerant from the capillary tube for storage, and the refrigeration system is controlled to perform refrigeration based on the remaining refrigerant.

[0009] Secondly, embodiments of this application provide a refrigerant regulating device.

[0010] The acquisition unit is used to acquire ambient temperature and the number of cooling rooms;

[0011] The determining unit is configured to determine a first target refrigerant quantity based on the ambient temperature and the number of cooling rooms if the ambient temperature is lower than a preset ambient temperature and the number of cooling rooms is lower than a preset number threshold.

[0012] The control unit is used to control the refrigerant storage device to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and to control the refrigeration system to perform refrigeration based on the remaining refrigerant.

[0013] Thirdly, embodiments of this application also provide a refrigerator, the refrigerator comprising: a refrigeration system and a refrigerant storage device connected in parallel with a capillary tube in the refrigeration system; the refrigerator further comprises a memory storing multiple instructions; a controller loads instructions from the memory to execute the steps of any of the refrigerant regulation methods provided in embodiments of this application.

[0014] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a plurality of instructions adapted for loading by a controller to execute the steps of any of the refrigerant regulation methods provided in embodiments of this application.

[0015] Fifthly, embodiments of this application also provide a computer program product, including a computer program or instructions, which, when executed by a controller, implement the steps in any of the refrigerant regulation methods provided in embodiments of this application.

[0016] The scheme adopted in the application embodiment obtains the ambient temperature and the number of cooling compartments. If the ambient temperature is lower than a preset ambient temperature and the number of cooling compartments is lower than a preset number threshold, a first target refrigerant amount is determined based on the ambient temperature and the number of cooling compartments. The refrigerant storage device is controlled to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and the refrigeration system is controlled to perform refrigeration based on the remaining refrigerant. By determining the amount of refrigerant currently needed by the refrigerator based on the ambient temperature and the number of cooling compartments, and storing the excess refrigerant in the refrigerant storage device, the amount of refrigerant in the refrigerator is prevented from being excessive when the compressor's cooling capacity decreases, thus reducing the refrigerator's energy consumption. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic flowchart of the first embodiment of the refrigerant regulation method provided in this application;

[0019] Figure 2 This is a schematic diagram of an example process for determining the first target refrigerant quantity provided in this application;

[0020] Figure 3This is a schematic flowchart of the second embodiment of the refrigerant regulation method provided in this application;

[0021] Figure 4 This is a schematic diagram of the refrigerant regulating device provided in the embodiments of this application;

[0022] Figure 5 This is a schematic diagram of the refrigerator provided in the embodiments of this application. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. At the same time, in the description of the embodiments of this application, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] This application provides a refrigerant regulation method, apparatus, refrigerator, and computer-readable storage medium.

[0025] Specifically, this embodiment will be described from the perspective of a refrigerant regulating device, which can be integrated into a refrigerator, that is, the refrigerant regulating method of this embodiment can be executed by the refrigerator.

[0026] The refrigerant regulation method provided in this application can be applied to devices such as refrigerators and food storage equipment.

[0027] The following detailed description is provided in conjunction with the accompanying drawings. In this embodiment, a refrigerator is used as an example of the executing entity. It should be noted that the order of description in the following embodiments is not intended to limit the preferred order of the embodiments. Although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than that shown in the accompanying drawings.

[0028] Please refer to Figure 1 The first embodiment of this application proposes a refrigerant regulation method, the specific process of which includes the following steps:

[0029] Step 101: Obtain the ambient temperature and the number of cooling rooms;

[0030] Step 102: If the ambient temperature is lower than the preset ambient temperature and the number of refrigeration rooms is less than the preset number threshold, then determine the first target refrigerant quantity based on the ambient temperature and the number of refrigeration rooms.

[0031] Step 103: Control the refrigerant storage device to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and control the refrigeration system to perform refrigeration based on the remaining refrigerant.

[0032] In this embodiment, the refrigerator includes a refrigeration system and a refrigerant storage device connected in parallel with the capillary tube in the refrigeration system. The refrigerator's compressor is an inverter compressor, which can adjust the compressor speed under different ambient temperatures and operating conditions. When the refrigerator's compressor speed changes, the refrigerator acquires the ambient temperature and the number of refrigeration compartments, compares the ambient temperature with a preset ambient temperature, and compares the number of refrigeration compartments with a preset compartment number threshold. If the ambient temperature is lower than the preset ambient temperature and the number of refrigeration compartments is lower than the preset compartment number threshold, then a first target refrigerant amount is determined based on the ambient temperature and the number of refrigeration compartments. The refrigerator controls the refrigerant storage device to extract and store the refrigerant corresponding to the first target refrigerant amount from the capillary tube in the refrigeration system, and controls the refrigeration system to perform refrigeration based on the remaining refrigerant.

[0033] It's important to note that a decrease in compressor speed leads to a decrease in compressor efficiency. Generally, the most efficient compressor speed is around 2000 RPM. When the compressor speed drops to around 1200 RPM, the COP (Coefficient of Performance) decreases by 20%, resulting in reduced operating efficiency of the refrigerator's refrigeration system. Simultaneously, a decrease in compressor speed leads to a decrease in the compressor's cooling capacity. However, with the refrigerant quantity remaining constant, more refrigerant will cause the evaporator temperature to rise, further reducing cooling efficiency and increasing the refrigerator's energy consumption. Therefore, adjusting the refrigerant quantity can reduce the refrigerator's energy consumption.

[0034] In this embodiment, the refrigerator acquires the ambient temperature and the number of cooling compartments. If the ambient temperature is lower than a preset ambient temperature and the number of cooling compartments is lower than a preset threshold, a first target refrigerant amount is determined based on the ambient temperature and the number of cooling compartments. The refrigerant storage device is controlled to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and the refrigeration system is controlled to perform refrigeration based on the remaining refrigerant. By determining the amount of refrigerant currently needed by the refrigerator based on the ambient temperature and the number of cooling compartments, and storing the excess refrigerant in the refrigerant storage device, the amount of refrigerant in the refrigerator is prevented from being excessive when the compressor's cooling capacity decreases, thus reducing the refrigerator's energy consumption.

[0035] Specifically, the following provides a detailed explanation of each step:

[0036] Step 101: Obtain the ambient temperature and the number of cooling rooms;

[0037] In this step, when the refrigerator detects a change in compressor speed, it acquires the ambient temperature and the number of cooling compartments. Specifically, the refrigerator includes an ambient temperature detection module and a refrigerator operation status detection module. The ambient temperature is detected by the ambient temperature detection module, and the number of cooling compartments currently in operation is acquired by the refrigerator operation status detection module.

[0038] Step 102: If the ambient temperature is lower than the preset ambient temperature and the number of refrigeration rooms is less than the preset number threshold, then determine the first target refrigerant quantity based on the ambient temperature and the number of refrigeration rooms.

[0039] In this step, after the refrigerator obtains the ambient temperature and the number of cooling compartments, it compares the ambient temperature with the preset ambient temperature and the number of cooling compartments with the preset number of compartments threshold. If the ambient temperature is lower than the preset ambient temperature and the number of cooling compartments is lower than the preset number of compartments threshold, then the first target refrigerant amount is determined based on the ambient temperature and the number of cooling compartments.

[0040] Specifically, refer to Figure 2 In one feasible embodiment, the refrigerator pre-sets a first target refrigerant amount corresponding to different ambient temperatures and different numbers of cooling compartments. When the refrigerator determines that the ambient temperature is lower than the preset ambient temperature and the number of cooling compartments is lower than a preset compartment number threshold, it further compares the ambient temperature with a preset ambient temperature sub-threshold and the number of cooling compartments with a preset compartment number sub-threshold. The preset ambient temperature sub-thresholds include A, B, and C, where A < B < C. The preset compartment number sub-thresholds include 1 and 2. When the ambient temperature is lower than A and the number of cooling compartments is 1, the first target refrigerant amount is determined to be Q1. When the ambient temperature is greater than or equal to A and less than B, and the number of cooling compartments is 1, the first target refrigerant amount is determined to be Q2. When the ambient temperature is greater than or equal to B, the first target refrigerant amount is determined to be Q2. When the ambient temperature is less than C and the number of refrigeration compartments is 1, the first target refrigerant quantity is determined to be Q3. When the ambient temperature is less than A and the number of refrigeration compartments is 2, the first target refrigerant quantity is determined to be Q4. When the ambient temperature is greater than or equal to A and less than B, and the number of refrigeration compartments is 2, the first target refrigerant quantity is determined to be Q5. When the ambient temperature is greater than or equal to B and less than C, and the number of refrigeration compartments is 2, the first target refrigerant quantity is determined to be Q6. It can be understood that the preset ambient temperature sub-thresholds A, B, and C, as well as the first target refrigerant quantities Q1, Q2, Q3, Q4, Q5, and Q6, are obtained from experimental tests and stored in the refrigerator in advance. The preset number of compartments sub-thresholds not only include 1 and 2, but can also be set to a larger number according to the actual situation, which is not limited here.

[0041] Specifically, in another feasible example, when the refrigerator determines that the ambient temperature is lower than a preset ambient temperature and the number of cooling compartments is less than a preset threshold, it acquires the refrigerator's operating information, the storage information of each cooling compartment, and the amount of refrigerant already stored in the refrigerant storage device. Based on the operating information, the storage information of each cooling compartment, the ambient temperature, the number of cooling compartments, and the amount of refrigerant already stored, a first target amount of refrigerant is calculated. Calculating the refrigerant amount using the operating information, the storage information of each cooling compartment, the ambient temperature, the number of cooling compartments, and the amount of refrigerant already stored improves the accuracy of determining the refrigerant amount, thereby helping to improve the accuracy of subsequent refrigerant storage and ultimately improving the precision of reducing the refrigerator's energy consumption.

[0042] Specifically, step 102 includes:

[0043] Step 1021: Obtain the refrigerator's operating information, the storage information of each refrigeration compartment, and the amount of refrigerant stored in the refrigerant storage device;

[0044] In this step, the refrigerator is equipped with a refrigerator operation status detection module, a camera module, and a measurement module. The refrigerator obtains the refrigerator's operation information through the refrigerator operation status detection module, obtains the storage information of each refrigeration compartment through the camera module, and measures the amount of refrigerant stored in the refrigerant storage device through the measurement module.

[0045] Step 1022: Determine the reference refrigerant quantity of the refrigerator based on the operating information, the storage information of each of the refrigeration compartments, the ambient temperature, and the number of refrigeration compartments;

[0046] In this step, the refrigerator determines the reference refrigerant amount based on the operating information, the storage information of each cooling compartment, the ambient temperature, and the number of cooling compartments. It should be noted that the operating information includes the refrigerator's internal temperature, evaporator temperature, and refrigerant circulation speed, while the storage information of each cooling compartment includes the mass and type of stored items.

[0047] Further, step 1022 includes:

[0048] Step 10221: For each of the refrigeration rooms, calculate the temperature difference between the ambient temperature and the internal temperature of the refrigeration room;

[0049] In this step, for each of the cooling compartments, the refrigerator obtains the internal temperature of the cooling compartment from the operating information, and then calculates the temperature difference between the ambient temperature and the internal temperature of the cooling compartment.

[0050] Step 10222: Determine the cooling capacity of each cooling room based on the temperature difference and the thermal conductivity, thermal resistance and surface area of ​​the cooling room.

[0051] In this step, the refrigerator obtains the preset thermal conductivity, thermal resistance, and surface area of ​​the cooling compartment. Based on the temperature difference and the thermal conductivity, thermal resistance, and surface area of ​​the cooling compartment, the cooling capacity corresponding to the cooling compartment is determined. Specifically, the formula for calculating the cooling capacity corresponding to the cooling compartment is as follows:

[0052] Q = k * A * ΔT / R

[0053] Where Q is the cooling capacity of the cooling room, k is the thermal conductivity coefficient of the cooling room, R is the thermal resistance of the cooling room, A is the surface area of ​​the cooling room, and ΔT is the temperature difference between the ambient temperature and the internal temperature of the cooling room.

[0054] Step 10223: Determine the refrigerant flow rate corresponding to the refrigeration room based on the ambient temperature, the storage information of the refrigeration room, and the evaporator temperature information in the operation information;

[0055] In this step, the refrigerator acquires evaporator temperature information from the operating information, including the evaporator inlet temperature and the evaporator outlet temperature. Based on a preset mapping relationship and the evaporator inlet temperature, the refrigerator determines the evaporator saturation temperature and calculates the subcooling by subtracting the evaporator saturation temperature from the evaporator outlet temperature. The refrigerator then determines the average heat capacity based on the stored item mass and type from the current storage information, determines the item load based on the item type, determines the item load based on the item mass and average heat capacity, determines the environmental load based on the ambient temperature and a preset standard temperature, and finally determines the cooling load of the cooling compartment based on the item load and the environmental load. The refrigerator acquires preset refrigerant information, determines the refrigerant specific enthalpy difference based on the refrigerant information, and then determines the refrigerant flow rate of the cooling compartment based on the subcooling, cooling load, and refrigerant specific enthalpy difference. The specific formula for calculating the item load is: Item Load = Stored Item Mass * Average Heat Capacity. The specific formula for calculating the refrigerant flow rate is: Refrigerant Flow Rate = Cooling Load / (Refrigerant Specific Enthalpy Difference * Subcooling).

[0056] It should be noted that subcooling refers to the difference between the evaporator outlet temperature and the evaporator saturation temperature, expressed in degrees Celsius. Refrigeration load is the amount of heat that needs to be cooled per unit time, expressed in watts. The specific enthalpy difference of the refrigerant refers to the change in specific enthalpy of the refrigerant between the evaporator and condenser during the refrigeration cycle. It can be obtained by consulting the refrigerant's property table or thermodynamic data handbook, expressed in joules per kilogram.

[0057] Step 10224: Determine the required amount of refrigerant for the refrigeration room based on the cooling capacity, the refrigerant flow rate, and the refrigerant circulation speed in the operation information;

[0058] Step 10225: Calculate the required refrigerant amount for each of the refrigeration compartments based on the number of refrigeration compartments, and determine the reference refrigerant amount for the refrigerator.

[0059] In steps 10224 and 10225, the refrigerator calculates the required refrigerant amount for each cooling compartment based on its cooling capacity and refrigerant flow rate, as well as the refrigerant circulation speed in the operating information. Then, based on the reference refrigerant amount for each cooling compartment and the number of cooling compartments, the refrigerator determines its reference refrigerant amount. The specific formula for calculating the required refrigerant amount for each cooling compartment is: Required refrigerant amount = Cooling capacity / (Refrigerant flow rate * Refrigerant circulation speed).

[0060] Step 1023: Determine the amount of refrigerant to be stored based on the preset total amount of refrigerant and the reference amount of refrigerant, and determine the first target amount of refrigerant based on the amount of refrigerant to be stored and the amount of refrigerant already stored.

[0061] In this step, the refrigerator calculates the difference between the preset total refrigerant amount and the reference refrigerant amount based on the obtained preset total refrigerant amount, determines the amount of refrigerant to be stored, and calculates the difference between the amount of refrigerant to be stored and the amount of refrigerant already stored to determine the first target refrigerant amount, wherein the first target refrigerant amount is the amount of refrigerant that needs to be stored.

[0062] Step 103: Control the refrigerant storage device to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and control the refrigeration system to perform refrigeration based on the remaining refrigerant.

[0063] In this step, the refrigerator is equipped with a controller, which is communicatively connected to the ambient temperature detection module and the refrigerator operation status detection module. The refrigerator calculates the first target refrigerant amount based on the data obtained from the ambient temperature detection module and the refrigerator operation status detection module, and then sends the first target refrigerant amount to the controller. The refrigerant storage device in the refrigerator is connected in parallel with the capillary tube in the refrigeration system. After determining the first target refrigerant amount, the refrigerator controls the refrigerant storage device to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage through the controller, and controls the refrigeration system to perform refrigeration based on the remaining refrigerant.

[0064] Specifically, step 103 includes:

[0065] Step 1031: Determine the target number of extractions based on the first target refrigerant quantity and the maximum single extraction quantity of refrigerant from the refrigerant storage device;

[0066] In this step, the refrigerant storage device in the refrigerator includes a valve, a counting nozzle, and a refrigerant receiver. The output end of the valve is connected to the input end of the counting nozzle, and the output end of the counting nozzle is connected to the input end of the refrigerant receiver. The refrigerator determines the maximum amount of refrigerant that can be drawn in a single operation based on the maximum opening parameter of the valve. Then, based on the first target refrigerant amount and the maximum amount of refrigerant that can be drawn in a single operation, the refrigerator determines the target number of operations. It can be understood that when the first target refrigerant amount and the maximum amount of refrigerant that can be drawn in a single operation are multiples of each other (e.g., the first target refrigerant amount is 100 grams, the maximum amount of refrigerant that can be drawn in a single operation is 10 grams), the corresponding target number of operations is 10. Furthermore, when the first target refrigerant amount and the maximum amount of refrigerant that can be drawn in a single operation are not multiples of each other (e.g., the first target refrigerant amount is 95 grams, the maximum amount of refrigerant that can be drawn in a single operation is 10 grams), the corresponding target number of operations is still 10, but only 5 grams of refrigerant are drawn in the last operation, thereby improving the accuracy of refrigerant storage.

[0067] Step 1032: Control the refrigerant storage device to extract the refrigerant corresponding to the first target refrigerant amount from the capillary tube at the maximum single extraction amount for storage, and accumulate the number of extractions.

[0068] In this step, the refrigerator controls the refrigerant storage device to extract refrigerant at the maximum single extraction amount each time, based on the maximum single extraction amount. Each time, the refrigerant corresponding to the maximum single extraction amount is extracted from the capillary tube for storage, and the number of extractions is accumulated through the counting nozzle in the refrigerant storage device. Understandably, when the target refrigerant quantity and the maximum single-draw refrigerant quantity are multiples of each other, the refrigerator controls the refrigerant storage device to draw refrigerant corresponding to the maximum single-draw refrigerant quantity each time, based on the maximum single-draw refrigerant quantity. When the target refrigerant quantity and the maximum single-draw refrigerant quantity are not multiples of each other, the first n draws are based on the maximum single-draw refrigerant quantity, drawing refrigerant corresponding to the maximum single-draw refrigerant quantity from the capillary tube for storage. In the last draw, based on the already drawn refrigerant quantity and the target refrigerant quantity, the remaining refrigerant quantity to be drawn is determined. Then, the valve opening parameter in the refrigerant storage device is adjusted according to the remaining refrigerant quantity, so that the valve only draws the refrigerant corresponding to the remaining refrigerant quantity for storage in the last draw, thereby improving the accuracy of refrigerant storage.

[0069] Step 1033: If the cumulative number of extractions reaches the target number of extractions, then stop extracting refrigerant.

[0070] In this step, after each refrigerant extraction by the refrigerant storage device, the refrigerator accumulates the number of extractions through the counting nozzle in the refrigerant storage device. The accumulated number is compared with the target extraction number. If the accumulated number has not reached the target extraction number, the refrigerator continues to extract refrigerant through the refrigerant storage device. If the accumulated number reaches the target extraction number, the extraction of refrigerant is stopped and the valve in the refrigerant storage device is closed.

[0071] Further, prior to step 103, the following steps are included:

[0072] Step a: Compare the first target refrigerant quantity with a preset threshold.

[0073] In this step, since the first target refrigerant amount is determined based on the stored refrigerant amount and the amount of refrigerant already stored in the refrigerant storage device, and the stored refrigerant amount is determined based on the preset total refrigerant amount in the refrigerator and the refrigerator's current corresponding reference refrigerant amount, there may be a situation where the stored refrigerant amount is less than the amount of refrigerant already stored in the refrigerant storage device. Therefore, before the refrigerator extracts refrigerant, it needs to compare the first target refrigerant amount with a preset threshold. Typically, the difference between the stored refrigerant amount and the amount of refrigerant already stored is the first target refrigerant amount; therefore, the preset threshold is set to 0.

[0074] Step b: If the first target refrigerant amount is less than the preset threshold, calculate the refrigerant amount difference between the first target refrigerant amount and the preset threshold, and control the refrigerant storage device to release the refrigerant corresponding to the refrigerant amount difference into the capillary tube.

[0075] Step c: If the first target refrigerant quantity is not less than the preset threshold, then the following steps are executed: control the refrigerant storage device to extract refrigerant corresponding to the first target refrigerant quantity from the capillary tube for storage, and control the refrigeration system to perform refrigeration based on the remaining refrigerant.

[0076] In steps b to c, after the refrigerator compares the first target refrigerant amount with the preset threshold, if it is determined that the first target refrigerant amount is less than the preset threshold, it means that the stored refrigerant amount is less than the amount of refrigerant already stored in the refrigerant storage device. At this time, it is necessary to calculate the refrigerant amount difference between the first target refrigerant amount and the preset threshold, and control the refrigerant storage device to release the refrigerant corresponding to the refrigerant amount difference into the capillary tube of the refrigeration system to facilitate the control of the refrigeration system to perform refrigeration. If it is determined that the first target refrigerant amount is not less than the preset threshold, it means that the stored refrigerant amount is not less than the amount of refrigerant already stored in the refrigerant storage device. At this time, the refrigerator controls the refrigerant storage device to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and controls the refrigeration system to perform refrigeration based on the remaining refrigerant.

[0077] In this embodiment, the refrigerator acquires the ambient temperature and the number of cooling compartments. If the ambient temperature is lower than a preset ambient temperature and the number of cooling compartments is lower than a preset threshold, a first target refrigerant amount is determined based on the ambient temperature and the number of cooling compartments. The refrigerant storage device is controlled to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and the refrigeration system is controlled to perform refrigeration based on the remaining refrigerant. By determining the amount of refrigerant currently needed by the refrigerator based on the ambient temperature and the number of cooling compartments, and storing the excess refrigerant in the refrigerant storage device, the amount of refrigerant in the refrigerator is prevented from being excessive when the compressor's cooling capacity decreases, thus reducing the refrigerator's energy consumption.

[0078] Further, refer to Figure 3 The second embodiment of this application is proposed. The difference between the second embodiment and the first embodiment is that, after obtaining the ambient temperature and the number of cooling rooms, it further includes:

[0079] Step d: If the ambient temperature is not less than the preset ambient temperature, or the number of refrigeration rooms is not less than the preset number of rooms threshold, then determine the second target refrigerant quantity based on the ambient temperature and the number of refrigeration rooms.

[0080] In this step, after the refrigerator obtains the ambient temperature and the number of cooling compartments, it determines whether to compare the ambient temperature with a preset ambient temperature and the number of cooling compartments with a preset number threshold. If the ambient temperature is not lower than the preset ambient temperature or the number of cooling compartments is not lower than the preset number threshold, then the second target refrigerant amount is determined based on the ambient temperature and the number of cooling compartments. It should be noted that if the ambient temperature is not lower than the preset ambient temperature or the number of cooling compartments is not lower than the preset number threshold, the amount of refrigerant required by the refrigerator will increase. In this case, the second target refrigerant amount is the amount of refrigerant that needs to be released from the refrigerant storage device into the refrigeration system.

[0081] In one feasible embodiment, the refrigerator pre-sets second target refrigerant amounts corresponding to different ambient temperatures and different numbers of cooling compartments. When the refrigerator determines that the ambient temperature is not less than a preset ambient temperature, or the number of cooling compartments is not less than a preset compartment number threshold, it further compares the ambient temperature with a preset ambient temperature sub-threshold and the number of cooling compartments with a preset compartment number sub-threshold. The preset ambient temperature sub-thresholds include D, E, and F, where D < E < F. The preset compartment number sub-thresholds include 3 and 4. When the ambient temperature is greater than F and the number of cooling compartments is 3, the second target refrigerant amount is determined to be W1. When the ambient temperature is less than or equal to F and greater than E, and the number of cooling compartments is 3, the second target refrigerant amount is determined to be W2. When the ambient temperature is greater than D and the number of refrigeration compartments is 3, the second target refrigerant quantity is determined to be W3. When the ambient temperature is greater than F and the number of refrigeration compartments is 4, the second target refrigerant quantity is determined to be W4. When the ambient temperature is less than or equal to F and greater than E, and the number of refrigeration compartments is 4, the second target refrigerant quantity is determined to be W5. When the ambient temperature is less than or equal to E and greater than D, and the number of refrigeration compartments is 4, the second target refrigerant quantity is determined to be W6. It can be understood that the preset ambient temperature sub-thresholds D, E, and F, as well as the second target refrigerant quantities W1, W2, W3, W4, W5, and W6, are obtained from experimental tests and stored in the refrigerator in advance. The preset number of compartments sub-thresholds not only include 3 and 4, but can also be set to a larger number according to the actual situation, which is not limited here.

[0082] Step e: Control the refrigerant storage device to release refrigerant corresponding to the second target refrigerant amount into the capillary tube so that the refrigeration system can perform refrigeration.

[0083] In this step, after determining the second target refrigerant amount, the refrigerator controls the refrigerant storage device to release the refrigerant corresponding to the second target refrigerant amount into the capillary tube of the refrigeration system via a controller, so that the refrigeration system can perform refrigeration. Specifically, the output end of the refrigerant receiver in the refrigerant storage device is connected to the capillary tube. The refrigerator controls the opening parameter of the output end of the refrigerant receiver according to the second target refrigerant amount, so that the output end of the refrigerant receiver releases the refrigerant corresponding to the second target refrigerant amount into the capillary tube.

[0084] When the refrigerator in this embodiment determines that refrigerant needs to be released, it controls the refrigerant storage device to release the refrigerant corresponding to the second target refrigerant amount into the capillary tube, so that the refrigeration system can perform refrigeration and avoid the problem of insufficient refrigeration capacity caused by insufficient refrigerant.

[0085] This embodiment also provides a refrigerant regulating device, which can be integrated into devices such as refrigerators and dryers. Figure 4 As shown, the refrigerant regulating device may include:

[0086] Acquisition unit 1001 is used to acquire ambient temperature and the number of cooling rooms;

[0087] The determining unit 1002 is used to determine a first target refrigerant quantity based on the ambient temperature and the number of cooling rooms if the ambient temperature is lower than a preset ambient temperature and the number of cooling rooms is lower than a preset number threshold.

[0088] The control unit 1003 is used to control the refrigerant storage device to draw refrigerant corresponding to the first target amount of refrigerant from the capillary tube for storage, and to control the refrigeration system to perform refrigeration based on the remaining refrigerant.

[0089] In an optional example, the determining unit is also used for:

[0090] Obtain the refrigerator's operating information, the storage information of each refrigeration compartment, and the amount of refrigerant stored in the refrigerant storage device;

[0091] The reference refrigerant quantity of the refrigerator is determined based on the operating information, the storage information of each of the refrigeration compartments, the ambient temperature, and the number of refrigeration compartments.

[0092] The amount of refrigerant to be stored is determined based on the preset total amount of refrigerant and the reference amount of refrigerant, and the first target amount of refrigerant is determined based on the amount of refrigerant to be stored and the amount of refrigerant already stored.

[0093] In an optional example, determining the cell is also used for:

[0094] For each of the refrigeration rooms, the temperature difference between the ambient temperature and the internal temperature of the refrigeration room is calculated;

[0095] The cooling capacity of the cooling room is determined based on the temperature difference and the thermal conductivity, thermal resistance, and surface area of ​​the cooling room.

[0096] Based on the ambient temperature, the storage information of the refrigeration chamber, and the evaporator temperature information in the operation information, the refrigerant flow rate corresponding to the refrigeration chamber is determined;

[0097] The required amount of refrigerant for the refrigeration room is determined based on the cooling capacity, the refrigerant flow rate, and the refrigerant circulation speed in the operating information.

[0098] Based on the number of refrigeration compartments, the required refrigerant amount for each refrigeration compartment is calculated, and the reference refrigerant amount for the refrigerator is determined.

[0099] In an optional example, the control unit is also used for:

[0100] The target number of extractions is determined based on the first target refrigerant quantity and the maximum single extraction quantity of refrigerant from the refrigerant storage device.

[0101] The refrigerant storage device is controlled to extract refrigerant corresponding to the first target refrigerant amount from the capillary tube at the maximum single extraction amount for storage, and the number of extractions is accumulated.

[0102] If the cumulative number of extractions reaches the target number, then the extraction of refrigerant will stop.

[0103] In an optional example, the control unit is also used for:

[0104] Compare the first target refrigerant amount with a preset threshold;

[0105] If the first target refrigerant amount is less than the preset threshold, then the refrigerant amount difference between the first target refrigerant amount and the preset threshold is calculated, and the refrigerant storage device is controlled to release the refrigerant corresponding to the refrigerant amount difference into the capillary tube.

[0106] If the first target refrigerant quantity is not less than the preset threshold, then the following steps are executed: control the refrigerant storage device to extract refrigerant corresponding to the first target refrigerant quantity from the capillary tube for storage, and control the refrigeration system to perform refrigeration based on the remaining refrigerant.

[0107] In an optional example, the control unit is also used for:

[0108] If the ambient temperature is not less than the preset ambient temperature, or the number of refrigeration rooms is not less than the preset number of rooms threshold, then the second target refrigerant quantity is determined based on the ambient temperature and the number of refrigeration rooms.

[0109] The refrigerant storage device is controlled to release refrigerant corresponding to the second target refrigerant amount into the capillary tube, so that the refrigeration system can perform refrigeration.

[0110] The solution in this embodiment obtains the ambient temperature and the number of cooling compartments. If the ambient temperature is lower than a preset ambient temperature and the number of cooling compartments is lower than a preset threshold, a first target refrigerant amount is determined based on the ambient temperature and the number of cooling compartments. The refrigerant storage device is controlled to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and the refrigeration system is controlled to perform refrigeration based on the remaining refrigerant. By determining the current refrigerant amount required by the refrigerator based on the ambient temperature and the number of cooling compartments, and storing the excess refrigerant in the refrigerant storage device, the amount of refrigerant in the refrigerator is prevented from being excessive when the compressor's cooling capacity decreases, thus reducing the refrigerator's energy consumption.

[0111] Accordingly, embodiments of this application also provide a refrigerator, such as Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application.

[0112] A refrigerator includes: a refrigeration system and a refrigerant storage device connected in parallel with the capillary tube in the refrigeration system;

[0113] The refrigerator also includes a controller and a memory, the memory storing multiple instructions; the controller loads instructions from the memory, following the steps of the refrigerant adjustment method described above.

[0114] Specifically, the refrigeration system includes: a compressor, a condenser, an anti-condensation pipe, a filter, a capillary tube, an evaporator, and a return pipe. The output end of the compressor is connected to the input end of the condenser, the output end of the condenser is connected to the input end of the anti-condensation pipe, the output end of the anti-condensation pipe is connected to the input end of the filter, the output end of the filter is connected to the first input end of the capillary tube, the first output end of the capillary tube is connected to the input end of the evaporator, the output end of the evaporator is connected to the input end of the return pipe, and the output end of the return pipe is connected to the input end of the compressor.

[0115] Specifically, the refrigerant storage device includes: a valve, a counting nozzle, and a refrigerant reservoir;

[0116] The valve's output end is connected to the input end of the counting nozzle, and the output end of the counting nozzle is connected to the input end of the refrigerant receiver; the second output end of the capillary tube is connected to the valve's input end, and the output end of the refrigerant receiver is connected to the second output end of the capillary tube, so that the refrigerant storage device is connected in parallel with the capillary tube in the refrigeration system.

[0117] Specifically, the refrigerator also includes: an ambient temperature detection module and a refrigerator operating status detection module; the controller is communicatively connected to the ambient temperature detection module, the refrigerator operating status detection module and the counting nozzle.

[0118] Those skilled in the art will understand that Figure 5 The refrigerator structure shown does not constitute a limitation on the refrigerator and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0119] although Figure 5 As not shown, the refrigerator includes a controller with one or more processing cores, a memory with one or more computer-readable storage media, and a computer program stored in the memory and executable on the controller. The controller is electrically connected to the memory.

[0120] The controller is the control center of the refrigerator. It connects various parts of the refrigerator through various interfaces and lines. By running or loading software programs and / or units stored in the memory, and by calling data stored in the memory, it executes various functions of the refrigerator and processes data, thereby monitoring the refrigerator as a whole. The controller can be a processor (CPU), graphics processing unit (GPU), network processor (NP), etc., and can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application.

[0121] In this embodiment of the application, the controller in the refrigerator loads the instructions corresponding to the processes of one or more applications into the memory, and the controller runs the applications stored in the memory to execute any of the refrigerant regulation methods provided in this embodiment of the application.

[0122] Optionally, the refrigerator also includes: a touch display screen, an radio frequency circuit, an audio circuit, an input unit, and a power supply. The controller is electrically connected to the touch display screen, the radio frequency circuit, the audio circuit, the input unit, and the power supply. The touch display screen can be used to display a graphical user interface (GUI) and receive user operation commands generated by the GUI. The touch display screen can include a display panel and a touch panel. The display panel can be used to display information input by the user or information provided to the user, as well as various GUIs of the refrigerator. These GUIs can be composed of graphics, text, icons, video, and any combination thereof. Optionally, the display panel can be configured using a liquid crystal display (LCD), an organic light-emitting diode (OLED), or other similar technology. The touch panel can be used to collect user touch operations on or near the panel (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near the touch panel), generate corresponding operation commands, and execute the corresponding program. Optionally, the touch panel can include two parts: a touch detection device and a touch controller. The touch detection device detects the user's touch location and the signal generated by the touch operation, transmitting the signal to the touch controller. The touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends it to the controller. It can also receive and execute commands from the controller. The touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it transmits the information to the controller to determine the type of touch event. Subsequently, the controller provides corresponding visual output on the display panel based on the type of touch event. In this embodiment, the touch panel and display panel can be integrated into a touch display screen to achieve input and output functions. However, in some embodiments, the touch panel and display panel can be implemented as two independent components to achieve input and output functions. That is, the touch display screen can also be used as part of an input unit to achieve input functions.

[0123] Radio frequency (RF) circuits can be used to transmit and receive RF signals to establish wireless communication with network devices or other refrigerators, and to transmit and receive signals with network devices or other refrigerators.

[0124] Audio circuitry can be used to provide an audio interface between the user and the refrigerator via speakers and microphones. The audio circuitry converts received audio data into electrical signals, which are then transmitted to the speakers, where they are converted into sound signals for output. Conversely, the microphone converts collected sound signals into electrical signals, which are received by the audio circuitry, converted back into audio data, and then processed by the controller before being transmitted via radio frequency circuitry to, for example, another refrigerator, or output to a memory for further processing.

[0125] The input unit can be used to receive input numbers, characters, or user characteristic information (such as fingerprints, iris, facial information, etc.), and to generate keyboard, mouse, joystick, optical, or trackball signal inputs related to user settings and function control.

[0126] The power supply is used to power the various components of the refrigerator. Optionally, the power supply can be logically connected to the controller through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply may also include one or more DC or AC power sources, a recharging system, a power fault detection circuit, a power converter or inverter, a power status indicator, and any other components.

[0127] The refrigerator may also include a camera, sensor, wireless fidelity module, Bluetooth module, etc., which will not be elaborated here.

[0128] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0129] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a controller.

[0130] Therefore, embodiments of this application provide a computer-readable storage medium storing a plurality of computer programs that can be loaded by a controller to execute any of the refrigerant regulation methods provided in embodiments of this application.

[0131] The computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0132] Since the computer program stored in the computer-readable storage medium can execute any of the refrigerant regulation methods provided in the embodiments of this application, the beneficial effects that any of the refrigerant regulation methods provided in the embodiments of this application can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0133] According to one aspect of this application, a computer program product or computer program is also provided, comprising computer instructions stored in a computer-readable storage medium. A refrigerator controller reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the refrigerator to perform the methods provided in the various optional implementations of the above embodiments.

[0134] In the above embodiments of the refrigerant regulating device, computer-readable storage medium, refrigerator, and computer program product, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes and beneficial effects of the refrigerant regulating device, computer-readable storage medium, computer program product, refrigerator, and their corresponding units described above can be referred to the description of the refrigerant regulating method in the above embodiments, and will not be repeated here.

[0135] The above provides a detailed description of a refrigerant regulation method, apparatus, refrigerator, computer-readable storage medium, and computer program product provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A refrigerant regulation method, characterized in that, The refrigerant regulation method is applied to a refrigerator, which includes: a refrigeration system and a refrigerant storage device connected in parallel with a capillary tube in the refrigeration system. Obtain the ambient temperature and the number of cooling rooms; If the ambient temperature is lower than the preset ambient temperature and the number of refrigeration rooms is less than the preset number threshold, then the first target refrigerant quantity is determined based on the ambient temperature and the number of refrigeration rooms. The refrigerant storage device is controlled to draw refrigerant corresponding to the first target amount of refrigerant from the capillary tube for storage, and the refrigeration system is controlled to perform refrigeration based on the remaining refrigerant. The step of determining the first target refrigerant quantity based on the ambient temperature and the number of refrigeration rooms includes: Obtain the refrigerator's operating information, the storage information of each refrigeration compartment, and the amount of refrigerant stored in the refrigerant storage device; The reference refrigerant quantity of the refrigerator is determined based on the operating information, the storage information of each of the refrigeration compartments, the ambient temperature, and the number of refrigeration compartments. The amount of refrigerant to be stored is determined based on the preset total amount of refrigerant and the reference amount of refrigerant, and the first target amount of refrigerant is determined based on the amount of refrigerant to be stored and the amount of refrigerant already stored. Determining the reference refrigerant quantity of the refrigerator based on the operating information, the storage information of each of the refrigeration compartments, the ambient temperature, and the number of refrigeration compartments includes: For each of the refrigeration rooms, the temperature difference between the ambient temperature and the internal temperature of the refrigeration room is calculated; The cooling capacity of the cooling room is determined based on the temperature difference and the thermal conductivity, thermal resistance, and surface area of ​​the cooling room. Based on the ambient temperature, the storage information of the refrigeration chamber, and the evaporator temperature information in the operation information, the refrigerant flow rate corresponding to the refrigeration chamber is determined; The required amount of refrigerant for the refrigeration room is determined based on the cooling capacity, the refrigerant flow rate, and the refrigerant circulation speed in the operating information. Based on the number of refrigeration compartments, the required refrigerant amount for each refrigeration compartment is calculated, and the reference refrigerant amount for the refrigerator is determined.

2. The refrigerant regulation method according to claim 1, characterized in that, The step of controlling the refrigerant storage device to draw refrigerant corresponding to the first target refrigerant quantity from the capillary tube for storage includes: The target number of extractions is determined based on the first target refrigerant quantity and the maximum single extraction quantity of refrigerant from the refrigerant storage device. The refrigerant storage device is controlled to extract refrigerant corresponding to the first target refrigerant amount from the capillary tube at the maximum single extraction amount for storage, and the number of extractions is accumulated. If the cumulative number of extractions reaches the target number, the extraction of refrigerant will stop.

3. The refrigerant adjustment method according to claim 1, characterized in that, Before controlling the refrigerant storage device to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and controlling the refrigeration system to perform refrigeration based on the remaining refrigerant, the procedure includes: Compare the first target refrigerant amount with a preset threshold; If the first target refrigerant amount is less than the preset threshold, the refrigerant amount difference between the first target refrigerant amount and the preset threshold is calculated, and the refrigerant storage device is controlled to release the refrigerant corresponding to the refrigerant amount difference into the capillary tube. If the first target refrigerant quantity is not less than the preset threshold, then the following steps are executed: control the refrigerant storage device to extract refrigerant corresponding to the first target refrigerant quantity from the capillary tube for storage, and control the refrigeration system to perform refrigeration based on the remaining refrigerant.

4. The refrigerant regulation method according to claim 1, characterized in that, After obtaining the ambient temperature and the number of cooling rooms, the process also includes: If the ambient temperature is not less than the preset ambient temperature, or the number of refrigeration rooms is not less than the preset number of rooms threshold, then the second target refrigerant quantity is determined based on the ambient temperature and the number of refrigeration rooms. The refrigerant storage device is controlled to release refrigerant corresponding to the second target refrigerant amount into the capillary tube, so that the refrigeration system can perform refrigeration.

5. A refrigerant regulating device, characterized in that, The refrigerant regulating device is applied to a refrigerator, which includes: a refrigeration system and a refrigerant storage device connected in parallel with a capillary tube in the refrigeration system; the device includes: The acquisition unit is used to acquire ambient temperature and the number of cooling rooms; A determining unit is configured to determine a first target refrigerant quantity based on the ambient temperature and the number of refrigeration compartments if the ambient temperature is lower than a preset ambient temperature and the number of refrigeration compartments is lower than a preset number of compartments. The determination of the first target refrigerant quantity based on the ambient temperature and the number of refrigeration compartments includes: acquiring the refrigerator's operating information, the storage information of each refrigeration compartment, and the amount of refrigerant already stored in the refrigerant storage device; determining a reference refrigerant quantity for the refrigerator based on the operating information, the storage information of each refrigeration compartment, the ambient temperature, and the number of refrigeration compartments; determining the stored refrigerant quantity based on a preset total refrigerant quantity and the reference refrigerant quantity, and determining the first target refrigerant quantity based on the stored refrigerant quantity and the amount of refrigerant already stored; the determination of the first target refrigerant quantity based on the operating information, the storage information of each refrigeration compartment, the ambient temperature, and the number of refrigeration compartments; and the determination of the first target refrigerant quantity based on the operating information, the storage information of each refrigeration compartment, and the amount of refrigerant already stored in the refrigerant storage device. The method for determining the reference refrigerant quantity for a refrigerator, based on the storage information of the refrigeration compartments, the ambient temperature, and the number of refrigeration compartments, includes: calculating the temperature difference between the ambient temperature and the internal temperature of each refrigeration compartment; determining the refrigeration capacity corresponding to each refrigeration compartment based on the temperature difference and the thermal conductivity, thermal resistance, and surface area of ​​the refrigeration compartment; determining the refrigerant flow rate corresponding to each refrigeration compartment based on the ambient temperature, the storage information of the refrigeration compartment, and the evaporator temperature information in the operating information; determining the required refrigerant quantity for each refrigeration compartment based on the refrigeration capacity, the refrigerant flow rate, and the refrigerant circulation speed in the operating information; and calculating the required refrigerant quantity for each refrigeration compartment based on the number of refrigeration compartments to determine the reference refrigerant quantity for the refrigerator. The control unit is used to control the refrigerant storage device to draw refrigerant corresponding to the first target refrigerant amount from the capillary tube for storage, and to control the refrigeration system to perform refrigeration based on the remaining refrigerant.

6. A refrigerator, characterized in that, The refrigerator includes: a refrigeration system and a refrigerant storage device connected in parallel with the capillary tube in the refrigeration system; The refrigerator further includes a controller and a memory, the memory storing multiple instructions; the controller loads instructions from the memory to perform the steps of the refrigerant adjustment method as described in any one of claims 1-4.

7. The refrigerator according to claim 6, characterized in that, The refrigeration system includes: a compressor, a condenser, an anti-condensation pipe, a filter, a capillary tube, an evaporator, and a return pipe, wherein: The output end of the compressor is connected to the input end of the condenser, the output end of the condenser is connected to the input end of the anti-condensation pipe, the output end of the anti-condensation pipe is connected to the input end of the filter, the output end of the filter is connected to the first input end of the capillary tube, the first output end of the capillary tube is connected to the input end of the evaporator, the output end of the evaporator is connected to the input end of the return gas pipe, and the output end of the return gas pipe is connected to the input end of the compressor. The refrigerant storage device includes: a valve, a counting nozzle, and a refrigerant reservoir; The output end of the valve is connected to the input end of the counting nozzle, and the output end of the counting nozzle is connected to the input end of the refrigerant receiver. The second output end of the capillary tube is connected to the input end of the valve, and the output end of the refrigerant receiver is connected to the second output end of the capillary tube, so that the refrigerant storage device is connected in parallel with the capillary tube in the refrigeration system.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a plurality of instructions adapted for loading by the controller to perform the steps of the refrigerant regulation method as described in any one of claims 1-4.

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