An air conditioning system for a refrigerated vehicle and a method of refrigeration

Abstract

This invention provides an air conditioning system for a refrigerated truck, the refrigerated truck including a driver's cab and a refrigerated compartment. The system includes: a driver's cab air conditioner and a refrigerated compartment air conditioner; an engine for driving an air conditioning compressor; control valves, including a driver's cab valve and a refrigerated compartment valve, the driver's cab valve controlling the refrigerant supplied to the driver's cab air conditioner, and the refrigerated compartment valve controlling the refrigerant supplied to the refrigerated compartment air conditioner; an air conditioning compressor connected to the driver's cab valve and the refrigerated compartment valve, supplying refrigerant to the driver's cab air conditioner and the refrigerated compartment air conditioner respectively through the driver's cab valve and the refrigerated compartment valve; and a radiator for receiving refrigerant returned from the driver's cab air conditioner and the refrigerated compartment air conditioner, condensing the received refrigerant, and supplying the condensed refrigerant to the air conditioning compressor. This invention solves the problems of complex structure, numerous parts, and multiple failure points that are difficult to repair in the prior art due to the need for two sets of air conditioning transmission devices.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology, and in particular to an air conditioning system and refrigeration method for refrigerated trucks. Background Technology

[0002] Refrigerated trucks are enclosed vans used to maintain the temperature of frozen or fresh goods. They are commonly used to transport items requiring low-temperature preservation, such as dairy products, fruits and vegetables, vaccines, and pharmaceuticals. Refrigerated trucks are equipped with a refrigeration system that cools both the cab and the refrigerated compartment.

[0003] like Figure 1a As shown in the figure, a refrigeration system in the related technology is illustrated. This refrigeration system contains two compressors corresponding to the cold storage compartment and the cockpit, respectively, and two radiators corresponding to the cold storage compartment and the cockpit, respectively. It employs numerous components, resulting in a complex structure, high cost, and many potential points of failure, making it difficult to repair. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide an air conditioning system and refrigeration method for refrigerated trucks, which can specifically solve the existing problems.

[0005] Based on the above objectives, in a first aspect, the present invention provides an air conditioning system for a refrigerated truck, the refrigerated truck including a driver's cab and a refrigerated compartment, the system including: a driver's cab air conditioner and a refrigerated compartment air conditioner; an engine for driving an air conditioning compressor; control valves including a driver's cab valve and a refrigerated compartment valve, the driver's cab valve for controlling the refrigerant supplied to the driver's cab air conditioner, and the refrigerated compartment valve for controlling the refrigerant supplied to the refrigerated compartment air conditioner; an air conditioning compressor for connecting to the control valves, and supplying refrigerant to the driver's cab air conditioner and the refrigerated compartment air conditioner through the control valves; and a radiator for receiving refrigerant returned from the driver's cab air conditioner and the refrigerated compartment air conditioner respectively, condensing the received refrigerant, and supplying the condensed refrigerant to the air conditioning compressor.

[0006] Secondly, a refrigeration method using the air conditioning system of the first aspect is also provided, the method comprising: determining whether the temperature of the cold compartment exceeds a preset cold compartment temperature; if the temperature of the cold compartment does not exceed the preset cold compartment temperature, determining the opening degree of the cockpit valve based on the cockpit temperature.

[0007] Thirdly, an electronic device is also provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that the processor executes the computer program to implement the method described in the first aspect.

[0008] Fourthly, a computer-readable storage medium is also provided, on which a computer program is stored, the program being executed by a processor to implement the method described in any one of the first aspects.

[0009] In summary, the present invention has at least the following beneficial effects: by reducing the number of compressors and radiators and utilizing control valves, it solves the problems of complex structure, numerous parts, high cost, and numerous failure points that are difficult to repair in the prior art due to the need for two sets of air conditioning drive devices, namely two compressors and two radiators. Attached Figure Description

[0010] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in the invention and should not be construed as limiting the scope of the invention.

[0011] Figure 1a A schematic diagram of an air conditioning system for refrigerated trucks in the prior art is shown;

[0012] Figure 1b A schematic diagram of the air conditioning system of the present invention for refrigerated trucks is shown;

[0013] Figure 2 A flowchart illustrating a refrigeration method using an air conditioning system according to an embodiment of the present invention is shown;

[0014] Figure 3 Another flowchart of a refrigeration method using an air conditioning system according to an embodiment of the present invention is shown;

[0015] Figure 4 A schematic diagram of a refrigeration device employing an air conditioning system according to an embodiment of the present invention is shown;

[0016] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present invention is shown;

[0017] Figure 6 A schematic diagram of a storage medium provided in an embodiment of the present invention is shown. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Figure 1b This invention illustrates an air conditioning system for a refrigerated truck. In an embodiment of the invention, the refrigerated truck includes a driver's cab and a refrigerated compartment. The system includes: a driver's cab air conditioner and a refrigerated compartment air conditioner; an engine for driving an air conditioning compressor; control valves, including a driver's cab valve and a refrigerated compartment valve, wherein the driver's cab valve controls the refrigerant supplied to the driver's cab air conditioner, and the refrigerated compartment valve controls the refrigerant supplied to the refrigerated compartment air conditioner; an air conditioning compressor connected to the driver's cab valve and the refrigerated compartment valve, supplying refrigerant to the driver's cab air conditioner and the refrigerated compartment air conditioner respectively through the driver's cab valve and the refrigerated compartment valve; and a radiator for receiving refrigerant returned from the driver's cab air conditioner and the refrigerated compartment air conditioner, condensing the received refrigerant, and supplying the condensed refrigerant to the air conditioning compressor.

[0021] In this embodiment, the air conditioning system uses only one air conditioning compressor and one radiator. Typically, an air conditioning system also has only one engine and one control valve. Specifically, the refrigerant is the refrigerant medium. The control valve can be any valve that can control different passages separately, such as a ball valve.

[0022] Figure 1b The arrows in the diagram indicate the direction of refrigerant flow. Air conditioner 1 and air conditioner 2 are used for the cockpit and refrigerated compartment respectively. The valves in the diagram refer to control valves; 'a' is one of the cockpit valve and the refrigerated compartment valve, and 'b' is the other.

[0023] This embodiment solves the problems of complex structure, numerous parts, high cost, and numerous failure points that arise from the need for two sets of air conditioning drive devices (i.e., two compressors and two radiators) in the prior art by reducing the number of compressors and radiators and utilizing control valves.

[0024] In some optional implementations of any embodiment of this application, if the air conditioning system has been started, the opening degree of the cold compartment valve is the maximum opening degree, and the opening degree of the cockpit valve is the opening degree between the minimum opening degree and the maximum opening degree.

[0025] In these implementations, if the air conditioning is already on, to ensure the temperature in the cold compartment reaches the ideal level, the opening of the cold compartment valve, which supplies refrigerant to the cold compartment, is controlled to its maximum. That is, the refrigerant supply channel to the cold compartment remains open throughout the operation of the air conditioning system. In contrast, the opening of the cockpit valve is adjustable. Specifically, the cockpit valve opening is generally less than its maximum opening.

[0026] This embodiment prioritizes ensuring the refrigeration effect of the cold storage and avoids damage to the goods inside.

[0027] In some optional implementations of any embodiment of this application, the pulley used by the air conditioning compressor is a clutch-type electromagnetic pulley or a silicone oil pulley.

[0028] Among these optional implementations, the separation, speed regulation, and coupling of the air conditioning compressor pulley can be achieved.

[0029] Figure 2 The present invention illustrates a refrigeration method using an air conditioning system according to any of the above embodiments, the method comprising: S201, acquiring the temperature of the cold compartment and the temperature of the cockpit; S202, determining whether the temperature of the cold compartment exceeds a preset cold compartment temperature; S203, if the temperature of the cold compartment does not exceed the preset cold compartment temperature, determining the opening degree of the cockpit valve based on the cockpit temperature.

[0030] In this embodiment, a controller that controls the air conditioning system is used as the execution subject of the method. This controller can be located within the air conditioning system or outside of it. The execution subject can determine the opening degree of the cockpit valve based on the cockpit temperature in various ways. For example, the execution subject can input the cockpit temperature into an opening degree determination model (such as a pre-trained deep neural network) and obtain the cockpit valve opening degree output from the model.

[0031] These implementation methods can prioritize the temperature of the cold storage compartment, and then adjust the temperature of the cockpit only after ensuring that the temperature of the cold storage compartment is within acceptable limits.

[0032] In some optional implementations of this embodiment, the temperature range of the cockpit temperature includes at least two temperature intervals, each temperature interval corresponding to at least two preset opening degrees, and the cockpit has at least two selectable cooling levels; determining the opening degree of the cockpit valve based on the cockpit temperature includes: if the cockpit temperature is in the first temperature interval of the at least two temperature intervals, then the opening degree of the cockpit valve is determined to be the first opening degree; if the cockpit temperature is in the second temperature interval of the at least two temperature intervals, then the opening degree of the cockpit valve is determined to be the second opening degree, wherein the lower limit of the second temperature interval is greater than or equal to the upper limit of the first temperature interval, and if the cooling levels are the same, then the second opening degree is greater than or equal to the first opening degree.

[0033] In these optional implementations, the opening degree here refers to the opening degree of the cockpit valve. The cooling level of the cockpit air conditioning is selected by the personnel in the cockpit. For example, the cooling level can be selected via a knob or a speed button. When the cooling level is the same, the higher the temperature range, the greater the opening degree indicated by that cooling level.

[0034] If any value in the second temperature range is greater than any value in the first temperature range, then, assuming the selected cooling level is the same, the second opening degree is greater than or equal to the first opening degree.

[0035] For each of at least two temperature ranges, there exists another temperature range that has the same boundary indication value as the temperature range, the boundary indication value being only within the range of one of the temperature ranges.

[0036] As shown in the table below, the opening degree corresponding to different cooling levels in the cockpit is as follows:

[0037] T＜20℃ cockpit valve opening 10％ 30％ 50％ 100％ 20℃≤T＜26℃ cockpit valve opening 30％ 50％ 80％ 100％ 26℃≤T＜33℃ cockpit valve opening 50％ 80％ 100％ 100％ T≥33℃ cockpit valve opening 100％ 100％ 100％ 100％

[0038] These implementations allow for a larger opening of the cabin valve corresponding to the cooling setting when the cabin temperature is high, thereby ensuring that enough refrigerant flows into the cabin air conditioning system and helps to quickly reduce the cabin temperature.

[0039] In some optional implementations of this embodiment, the method further includes: if the temperature of the cold compartment exceeds the preset cold compartment temperature when the air conditioning system has been started and the cold compartment valve is at its maximum opening, performing at least one of the following operations: increasing the pulley engagement speed ratio of the air conditioning compressor and increasing the fan speed of the radiator.

[0040] In these implementations, the opening degree of the cold compartment valve can be maintained at its maximum throughout the operation of the air conditioning system. If the temperature in the cold compartment is high, the engagement speed ratio of the air conditioning compressor pulley can be increased, thereby increasing the fan speed of the radiator and improving the overall cooling effect of the air conditioning system. Alternatively, the aforementioned actuator can also reduce the opening degree of the cabin valve, allowing more refrigerant to flow into the cold compartment air conditioning system.

[0041] In some optional implementations of this embodiment, the method further includes: determining the relationship between the cockpit temperature and the preset cockpit temperature; if the cockpit temperature is greater than the preset cockpit temperature, then performing at least one of the following: increasing the pulley engagement speed ratio of the air conditioning compressor, increasing the fan speed of the radiator, and increasing the opening degree of the cockpit valve; if the cockpit temperature is less than the preset cockpit temperature, then performing at least one of the following: decreasing the pulley engagement speed ratio of the air conditioning compressor, decreasing the fan speed of the radiator, and decreasing the opening degree of the cockpit valve.

[0042] In these implementation methods, the aforementioned executing entity can refrain from operation if the cockpit temperature matches the preset cockpit temperature. The preset cockpit temperature can be a comfortable temperature for the human body, such as 18℃-20℃.

[0043]

[0044] As shown in the table above, the table illustrates the specific operating procedures when the relationship between the cockpit temperature and the preset cockpit temperature differs.

[0045] In some optional implementations of this embodiment, determining whether the temperature of the cold storage exceeds the preset cold storage temperature includes: collecting the refrigeration switch status of the cold storage and the refrigeration level selected by the cockpit; if the refrigeration switch status is on and the refrigeration level is not zero, determining whether the temperature of the cold storage exceeds the preset cold storage temperature.

[0046] like Figure 3 As shown, the present invention also provides a specific embodiment of a refrigeration method using the above-described air conditioning system. The preset parameters refer to the pulley engagement speed ratio of the air conditioning compressor, the fan speed of the radiator, and the opening degree of the cockpit valve.

[0047] like Figure 4 As shown, this application embodiment provides a refrigeration device using the above-described air conditioning system. The device includes: an acquisition unit 401 for acquiring the temperature of the cold storage compartment and the temperature of the cockpit; a judgment unit 402 configured to judge whether the temperature of the cold storage compartment exceeds a preset cold storage compartment temperature; and a determination unit 403 configured to determine the opening degree of the cockpit valve based on the cockpit temperature if the temperature of the cold storage compartment does not exceed the preset cold storage compartment temperature.

[0048] Optionally, the cockpit temperature has at least two temperature ranges, each temperature range corresponds to at least two preset opening degrees, and the cockpit has at least two selectable cooling levels. If the cockpit temperature is within a target temperature range, then each cooling level corresponds to a preset opening degree, and the preset opening degree is located within the target temperature range. The step of determining the opening degree of the cockpit valve based on the cockpit temperature is further configured as follows: if the cockpit temperature is in the first temperature range of the at least two temperature ranges, then the opening degree of the cockpit valve is determined to be a first opening degree; if the cockpit temperature is in the second temperature range of the at least two temperature ranges, then the opening degree of the cockpit valve is determined to be a second opening degree, wherein any value in the second temperature range is greater than any value in the first temperature range, and if the cooling levels are the same, the second opening degree is greater than or equal to the first opening degree.

[0049] Optionally, if the air conditioning system has been started, the opening degree of the cold compartment valve is the maximum opening degree; the device is further configured to: if the temperature of the cold compartment exceeds the preset cold compartment temperature, perform at least one of the following operations: increase the pull-in speed ratio of the pulley of the air conditioning compressor, and increase the fan speed of the radiator.

[0050] Optionally, the device is further configured to: determine the relationship between the cockpit temperature and the preset cockpit temperature; if the cockpit temperature is greater than the preset cockpit temperature, then perform at least one of the following: increase the pulley engagement speed ratio of the air conditioning compressor, increase the fan speed of the radiator, and increase the opening degree of the cockpit valve; if the cockpit temperature is less than the preset cockpit temperature, then perform at least one of the following: decrease the pulley engagement speed ratio of the air conditioning compressor, decrease the fan speed of the radiator, and decrease the opening degree of the cockpit valve.

[0051] The refrigeration system using the air conditioning system provided in the above embodiments of the present invention and the refrigeration method using the air conditioning system provided in the embodiments of the present invention are based on the same inventive concept and have the same beneficial effects as the methods used, run or implemented by the application programs stored therein.

[0052] This invention also provides an electronic device corresponding to the refrigeration method using the air conditioning system described in the foregoing embodiments, for executing the refrigeration method using the air conditioning system described above. This invention is not limited in its embodiments.

[0053] Please refer to Figure 5 This illustrates a schematic diagram of an electronic device provided by some embodiments of the present invention. For example... Figure 5 As shown, the electronic device 50 includes: a processor 500, a memory 501, a bus 502, and a communication interface 503. The processor 500, the communication interface 503, and the memory 501 are connected via the bus 502. The memory 501 stores a computer program that can run on the processor 500. When the processor 500 runs the computer program, it executes the method provided by any of the foregoing embodiments of the present invention.

[0054] The memory 501 may include high-speed random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 503 (which can be wired or wireless), such as the Internet, wide area network, local area network, or metropolitan area network.

[0055] Bus 502 can be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. The memory 501 is used to store programs. After receiving an execution instruction, the processor 500 executes the program. The refrigeration method using the above-described air conditioning system disclosed in any of the foregoing embodiments of the present invention can be applied to the processor 500, or implemented by the processor 500.

[0056] The processor 500 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of the processor 500 or by instructions in software form. The processor 500 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this invention can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 501. The processor 500 reads the information in memory 501 and, in conjunction with its hardware, completes the steps of the above method.

[0057] The electronic device provided in this embodiment of the invention and the refrigeration method using the above-described air conditioning system provided in this embodiment of the invention are based on the same inventive concept and have the same beneficial effects as the methods used, operated or implemented.

[0058] This invention also provides a computer-readable storage medium corresponding to the refrigeration method using the air conditioning system described in the foregoing embodiments. Please refer to [link / reference]. Figure 6 The computer-readable storage medium shown is an optical disc 60, on which a computer program (i.e., a program product) is stored. When the computer program is run by a processor, it executes the refrigeration method using the air conditioning system described above, as provided in any of the foregoing embodiments.

[0059] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical and magnetic storage media, which will not be elaborated here.

[0060] The computer-readable storage medium provided in the above embodiments of the present invention and the refrigeration method using the above-described air conditioning system provided in the embodiments of the present invention are based on the same inventive concept and have the same beneficial effects as the methods used, run or implemented by the application programs stored therein.

[0061] It should be noted that:

[0062] In the foregoing text, the terms "comprising," "including," or any other variations thereof are intended to cover a 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 limitation, 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 the present invention 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.

[0063] 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 the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a 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, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0064] The embodiments of the present invention have been described above with reference to the accompanying drawings. These are merely specific implementations of the present invention, but the present invention is not limited to the specific implementations described above. The specific implementations described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. An air conditioning system for a refrigerated vehicle, the refrigerated vehicle comprising a cab and a cold store, characterised in that, The system includes: Cockpit air conditioning and refrigerated compartment air conditioning; The engine is used to drive the air conditioning compressor; The control valves include a cockpit valve and a cold compartment valve, wherein the cockpit valve is used to control the refrigerant supplied to the cockpit air conditioner, and the cold compartment valve is used to control the refrigerant supplied to the cold compartment air conditioner. An air conditioning compressor is used to connect to the cockpit valve and the refrigeration compartment valve, and to deliver refrigerant to the cockpit air conditioner and the refrigeration compartment air conditioner respectively through the cockpit valve and the refrigeration compartment valve; A radiator is used to receive refrigerant returned from the cockpit air conditioner and the cold compartment air conditioner respectively, condense the received refrigerant, and deliver the condensed refrigerant to the air conditioning compressor; The cooling method using the air conditioning system includes: acquiring the temperature of the cold storage compartment and the temperature of the cockpit; determining whether the temperature of the cold storage compartment exceeds a preset cold storage temperature; if the temperature of the cold storage compartment does not exceed the preset cold storage temperature, determining the opening degree of the cockpit valve based on the cockpit temperature; The method further includes: If the air conditioning system is started and the cold compartment valve is at its maximum opening, and the temperature of the cold compartment exceeds the preset cold compartment temperature, perform at least one of the following operations: increase the pulley engagement speed ratio of the air conditioning compressor pulley, or increase the fan speed of the radiator. The method further includes: Determine the relationship between the cockpit temperature and the preset cockpit temperature; If the cockpit temperature is greater than the cockpit preset temperature, then at least one of the following shall be performed: increase the pull-in speed ratio of the air conditioning compressor pulley, increase the fan speed of the radiator, and / or increase the opening degree of the cockpit valve; If the cockpit temperature is lower than the cockpit preset temperature, then at least one of the following shall be performed: reduce the pull-in speed ratio of the air conditioning compressor pulley, reduce the fan speed of the radiator, or reduce the opening degree of the cockpit valve; The temperature range of the cockpit temperature includes at least two temperature intervals, each temperature interval corresponds to at least two preset openings, and the cockpit has at least two cooling levels. Determining the opening degree of the cockpit valve based on the cockpit temperature includes: If the cockpit temperature is in the first temperature range of the at least two temperature ranges, then the opening degree of the cockpit valve is determined to be the first opening degree. If the cockpit temperature is in the second temperature range of the at least two temperature ranges, then the opening degree of the cockpit valve is determined to be the second opening degree, wherein the lower limit of the second temperature range is greater than or equal to the upper limit of the first temperature range, and if the cooling levels are the same, then the second opening degree is greater than or equal to the first opening degree. The determination of whether the temperature of the cold compartment exceeds the preset cold compartment temperature includes: collecting the refrigeration switch status of the cold compartment and the refrigeration level selected by the cockpit; if the refrigeration switch status is on and the refrigeration level is not zero, determining whether the temperature of the cold compartment exceeds the preset cold compartment temperature. If the air conditioning system is started, the opening degree of the cold compartment valve is the maximum opening degree, and the opening degree of the cockpit valve is the opening degree between the minimum and maximum opening degree. The channel for supplying refrigerant to the cold compartment is always in a closed state during the operation of the air conditioning system. The opening degree of the cockpit valve is adjustable. The method for determining the opening degree of the cockpit valve includes inputting the cockpit temperature into the opening degree determination model and obtaining the opening degree of the cockpit valve output from the model.

2. The air conditioning system of claim 1, wherein, The air conditioner compressor uses a clutch-type electromagnetic pulley or a silicone oil pulley.

3. A refrigeration method using the air conditioning system according to any one of claims 1 to 2, characterized by, The method includes: Obtain the temperature of the cold storage and the cockpit; Determine if the temperature of the cold storage exceeds the preset cold storage temperature; If the temperature of the cold storage compartment does not exceed the preset cold storage compartment temperature, the opening degree of the cockpit valve is determined according to the cockpit temperature. The temperature range of the cockpit temperature includes at least two temperature intervals, each temperature interval corresponds to at least two preset openings, and the cockpit has at least two cooling levels. Determining the opening degree of the cockpit valve based on the cockpit temperature includes: If the cockpit temperature is in the first temperature range of the at least two temperature ranges, then the opening degree of the cockpit valve is determined to be the first opening degree. If the cockpit temperature is in the second temperature range of the at least two temperature ranges, then the opening degree of the cockpit valve is determined to be the second opening degree, wherein the lower limit of the second temperature range is greater than or equal to the upper limit of the first temperature range, and if the cooling levels are the same, then the second opening degree is greater than or equal to the first opening degree. The determination of whether the temperature of the cold compartment exceeds the preset cold compartment temperature includes: collecting the refrigeration switch status of the cold compartment and the refrigeration level selected by the cockpit; if the refrigeration switch status is on and the refrigeration level is not zero, determining whether the temperature of the cold compartment exceeds the preset cold compartment temperature.

4. A refrigeration apparatus employing the air conditioning system according to any one of claims 1 to 2, characterized by The device includes: The acquisition unit acquires the temperature of the cold storage and the cockpit temperature. The judgment unit is configured to determine whether the temperature of the cold storage exceeds the preset cold storage temperature. The determining unit is configured to determine the opening degree of the cockpit valve based on the cockpit temperature if the temperature of the cold compartment does not exceed the preset cold compartment temperature. The temperature range of the cockpit temperature includes at least two temperature intervals, each temperature interval corresponds to at least two preset openings, and the cockpit has at least two cooling levels. The determining unit is further configured to perform the determination of the cockpit valve opening based on the cockpit temperature in the following manner: If the cockpit temperature is in the first temperature range of the at least two temperature ranges, then the opening degree of the cockpit valve is determined to be the first opening degree. If the cockpit temperature is in the second temperature range of the at least two temperature ranges, then the opening degree of the cockpit valve is determined to be the second opening degree, wherein the lower limit of the second temperature range is greater than or equal to the upper limit of the first temperature range, and if the cooling levels are the same, then the second opening degree is greater than or equal to the first opening degree. The judgment unit is further configured to perform the judgment on whether the temperature of the cold compartment exceeds the preset cold compartment temperature in the following manner: collecting the refrigeration switch status of the cold compartment and the refrigeration level selected by the cockpit; if the refrigeration switch status is on and the refrigeration level is not zero, judging whether the temperature of the cold compartment exceeds the preset cold compartment temperature.

5. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, The processor runs the computer program to implement the method as described in claim 3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the method as described in claim 3.

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