Vehicle air conditioning system and automobile thereof

Abstract

The vehicle air conditioning system comprises an air conditioning device, a sensor set and an upper computer, and the air conditioning device comprises a plurality of refrigerating systems arranged in parallel; the sensor group comprises a plurality of sensors, one part of the sensors are arranged in the heat preservation cabin and used for collecting temperature data and humidity data of the heat preservation cabin, and the other part of the sensors are connected with the air conditioning device and used for collecting temperature data, humidity data, current data and voltage data in the air conditioning device; the upper computer is connected with the sensor group, controls start and stop and temperature adjustment of the air conditioning device through temperature data and humidity data of the heat preservation cabin, judges the health condition of the air conditioning system through temperature data, humidity data, current data and voltage data in the air conditioning device, and feeds back health management information. According to the feedback of the temperature data, the humidity data, the current data and the voltage data in the air conditioning device, automatic adjustment control is carried out, and the working state of the air conditioning device is judged to facilitate health management.

Description

Technical Field

[0001] The present application relates to the field of vehicle air conditioning, and in particular to a vehicle air conditioning system and a vehicle thereof. Background Art

[0002] With the development of informatization and intelligence, the requirements for air conditioning in various independent cabins such as insulation cabins and equipment cabins equipped on special vehicles are increasing. Since the special equipment in the cabin has high requirements for the ambient temperature of the use environment, and the use environment of special vehicles is harsh (generally required to be -40℃~55℃), in order to ensure the reliable operation of special equipment, special vehicles must be equipped with air conditioning systems to ensure the reliable operation of special equipment in low temperature, high temperature or high humidity environments. The current air conditioning system cannot provide feedback on various information in a timely manner in order to manage the health of the air conditioning operation status. Summary of the invention

[0003] The present application provides a vehicle air-conditioning system and a vehicle thereof, which can solve the problem in the related art that the current air-conditioning system cannot timely feedback various information so as to perform health management on the air-conditioning operation status.

[0004] In a first aspect, an embodiment of the present application provides a vehicle air-conditioning system, comprising: an air-conditioning device, a sensor group and a host computer, wherein the air-conditioning device comprises a plurality of refrigeration systems arranged in parallel; the sensor group comprises a plurality of sensors, a part of the sensors are arranged in a thermal insulation cabin and are used to collect temperature data and humidity data of the thermal insulation cabin, and another part of the sensors are connected to the air-conditioning device and are used to collect temperature data, humidity data, current data and voltage data inside the air-conditioning device; the host computer is connected to the sensor group, and the host computer controls the start and stop and temperature adjustment of the air-conditioning device through the temperature data and humidity data of the thermal insulation cabin, and the host computer judges the health status of the air-conditioning system through the temperature data, humidity data, current data and voltage data inside the air-conditioning device, and feeds back health management information.

[0005] In combination with the first aspect, in one implementation, the refrigeration system integrates a compressor, a condenser, a condensing fan, an evaporator, an evaporating fan, an expansion valve and a PTC heater.

[0006] In combination with the first aspect, in one implementation, the sensor group is further used to collect compressor speed data, wind speed data, and refrigeration system internal pressure data;

[0007] The internal temperature data of the air conditioner includes condenser inlet temperature data, compressor exhaust temperature data, air conditioner outlet temperature data, and air conditioner return temperature data;

[0008] The internal humidity data of the air conditioner includes air outlet humidity data of the air conditioner and air return humidity data of the air conditioner;

[0009] The internal current data of the air conditioner includes the total working current data of the air conditioner, the compressor current data, and the working current data of the PTC heater;

[0010] The air conditioner internal voltage data includes air conditioner input voltage data.

[0011] In combination with the first aspect, in one implementation, the host computer determines the health of the compressor in the air-conditioning system according to the compressor speed data, the compressor current data, and the compressor exhaust temperature data. When the compressor speed data is lower than the speed setting value and the compressor current data is greater than the current setting value, the host computer determines that the compressor is abnormal. When the compressor exhaust temperature data is greater than the temperature setting value, the host computer determines that the compressor is overheated.

[0012] The host computer determines the health status of the fan according to the total working current data of the air conditioner and the working current data of the PTC heater;

[0013] The host computer determines the health status of the condenser based on the condenser inlet air temperature data;

[0014] The host computer determines the health status of the air conditioning system input according to the air conditioning device input voltage data and the air conditioning device total working current data;

[0015] The host computer determines the health of the cooling capacity or heating capacity of the air conditioner according to the air outlet humidity data of the air conditioner, the air return humidity data of the air conditioner, the air outlet temperature data of the air conditioner, and the air return temperature data of the air conditioner;

[0016] The host computer determines the health of the refrigeration system based on the internal pressure data of the refrigeration system, the condenser inlet air temperature data, the air conditioning device outlet air humidity data, the air conditioning device return air humidity data, the air conditioning device outlet air temperature data, and the air conditioning device return air temperature data;

[0017] The host computer determines the service life of the air conditioning system according to the accumulated working time of the air conditioning device;

[0018] The host computer determines the health status of the PTC heater according to the PTC heater startup status and the PTC heater working current data.

[0019] In combination with the first aspect, in one implementation, a fuse is connected in series to the PTC heater.

[0020] In combination with the first aspect, in one embodiment, an air duct is provided at the air outlet of the air conditioning device, and the air duct is used to communicate with the interior of the thermal insulation cabin.

[0021] In combination with the first aspect, in one embodiment, the air duct includes an air outlet duct and a return air duct, the air outlet duct is arranged at the air outlet of the air conditioning device, and the return air duct is arranged at the return air outlet of the air conditioning device.

[0022] In combination with the first aspect, in one implementation, an air duct fan is provided in the air outlet duct.

[0023] In combination with the first aspect, in one embodiment, the air outlet duct includes an air supply hose and an air supply rigid pipe, one end of the air supply hose is connected to the air conditioning device, and the other end is connected to the air supply rigid pipe, the duct fan is arranged inside the air supply rigid pipe, and one end of the air supply rigid pipe is used to connect to the insulation cabin.

[0024] In a second aspect, an embodiment of the present application provides a car, comprising: the vehicle air-conditioning system as described above.

[0025] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0026] An embodiment of the present application provides a vehicle air-conditioning system and a vehicle thereof. By arranging a sensor group on the air-conditioning device, it is possible to comprehensively detect the temperature data, humidity data, current data and voltage data inside the air-conditioning device, and perform automatic adjustment and control based on the feedback of the temperature data, humidity data, current data and voltage data inside the air-conditioning device; at the same time, it is possible to judge its own working status based on its own status information to facilitate health management. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the air conditioning system structure provided in an embodiment of the present application;

[0029] Figure 2 A schematic diagram of an air conditioning device provided in an embodiment of the present application.

[0030] In the figure: 1. Host computer; 2. Air conditioning device; 3. Air outlet duct; 30. Air supply hose; 31. Air supply hard pipe; 4. Return air duct; 5. Insulation cabin; 6. Temperature and humidity sensor. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] The embodiment of the present application provides a vehicle air-conditioning system and a vehicle thereof, which can solve the problem in the related art that the current air-conditioning system cannot timely feedback various information so as to perform health management of the air-conditioning operating status.

[0033] See also Figure 1 to Figure 2 The embodiment of the present application provides a vehicle air-conditioning system, which includes: an air-conditioning device 2, a sensor group and a host computer 1, wherein the air-conditioning device 2 includes multiple refrigeration systems arranged in parallel; the sensor group includes multiple sensors, a part of the sensors are arranged in the insulation cabin 5, and are used to collect temperature data and humidity data of the insulation cabin 5, and another part of the sensors are connected to the air-conditioning device 2, and are used to collect temperature data, humidity data, current data and voltage data inside the air-conditioning device 2; the host computer 1 is connected to the sensor group, and the host computer 1 controls the start and stop and temperature adjustment of the air-conditioning device 2 through the temperature data and humidity data of the insulation cabin 5, and the host computer 1 judges the health of the air-conditioning system through the temperature data, humidity data, current data and voltage data inside the air-conditioning device 2, and feeds back health management information.

[0034] In the present application, by setting a sensor group on the air-conditioning device 2, the internal temperature data, humidity data, current data and voltage data of the air-conditioning device 2 can be comprehensively detected, and automatic adjustment and control can be performed based on the feedback of the internal temperature data, humidity data, current data and voltage data of the air-conditioning device 2; at the same time, its own working status is judged based on its own status information to facilitate health management.

[0035] Among them, in this application, multiple refrigeration systems are set up to run in parallel, and each refrigeration system integrates a compressor, a condenser, a condensing fan, an evaporator, an evaporating fan, an expansion valve, a PTC heater and other electrical components. The purpose of setting up multiple refrigeration systems to run in parallel is: when any one of the refrigeration systems or any component in any one of the refrigeration systems fails and cannot operate, the other refrigeration systems can operate normally; it should be noted that a refrigeration system is provided with multiple PTC heaters, and the multiple PTC heaters run in parallel, and the failure of any PTC heater will not affect the normal operation of other PTC heaters.

[0036] Furthermore, a fuse is connected in series to the PTC heater, and when one or more of the PTC heaters fails due to short circuit, overheating or breakdown, the faulty circuit can be automatically cut off to ensure the normal operation of other PTC heaters without fault.

[0037] On the basis of the above-mentioned embodiment, in this embodiment, an air duct is provided at the air outlet of the air conditioning device 2 , and the air duct is used to communicate with the interior of the thermal insulation cabin 5 .

[0038] The air duct includes an air outlet duct 3 and a return air duct 4, wherein the air outlet duct 3 is arranged at the air outlet of the air conditioning device 2, and the return air duct 4 is arranged at the return air outlet of the air conditioning device 2. A duct fan is arranged in the air outlet duct 3, and when the air outlet duct 3 is too long and the air pressure of the air conditioner is too large, the air duct fan can reduce the air pressure in the air outlet duct 3 and increase the air volume.

[0039] Furthermore, the air outlet duct 3 includes an air supply hose and an air supply rigid pipe, one end of the air supply hose is connected to the air conditioning device 2, and the other end is connected to the air supply rigid pipe, the duct fan is arranged inside the air supply rigid pipe, and one end of the air supply rigid pipe is used to connect to the insulation cabin 5.

[0040] Therefore, in this embodiment, see Figure 2 As shown, the air conditioning device 2 is of an integral type and is connected to the thermal insulation cabin 5 through an air duct and a connecting flange. The air conditioning device 2 is installed in the equipment cabin of a special vehicle. The external circulation takes in air through the grille on the inner side wall of the cabin, passes through the condenser, takes out the heat of the condenser, and then discharges it outward through the grille on the cabin door; the internal circulation is connected to the tail of the launch tube barrel section through the return air duct 4, and the air in the cabin is sucked into the evaporator or PTC heater in the air conditioning device 2 for cooling or heating, and then sent to the thermal insulation cabin 5 through the outlet duct 3 to form a circulation.

[0041] The longer air outlet duct 3 adopts a hard air duct to reduce wind resistance. The air outlet of the air conditioning device 2 is connected to the air inlet of the insulation cabin 5 along the equipment compartment toward the front of the vehicle. A duct fan is arranged in the air supply rigid pipe to provide power for the air outlet of the air conditioning device 2. Since the return air duct 4 is short, a flexible air duct is adopted to facilitate installation and connection. The installation arrangement of the return air duct 4 is as follows: from the return air outlet of the air conditioning device 2 along the equipment compartment to the return air outlet in the cabin. Furthermore, an insulation layer is designed on the air outlet duct 3 and the return air duct 4 to prevent the loss of cooling capacity or heating capacity. The insulation layer can be made of materials such as polyurethane, rock wool, and glass fiber.

[0042] On the basis of the above embodiments, in this embodiment, the sensor arranged in the insulation cabin 5 is a temperature and humidity sensor 6, and multiple temperature and humidity sensors 6 are arranged at various positions in the insulation cabin 5. The weighted average of the multiple temperature and humidity sensors 6 is used as the control quantity as the basis for temperature and humidity control and start and stop of the air-conditioning device 2. The weighted value of each sensor can be set according to the importance of temperature and humidity regulation at each position.

[0043] The air conditioning system realizes the temperature control function in the insulation cabin 5 and the launch tube by controlling the refrigeration and heating equipment in the air conditioning device 2. It collects and processes the information of each temperature and humidity sensor 6 in real time to determine whether to start or stop the corresponding refrigeration or heating equipment, so as to control the temperature in the insulation cabin 5 and the launch tube within the specified range. The air duct fan of the air conditioning system is installed at the interface between the air outlet 3 and the insulation cabin 5 to provide air outlet power for the air conditioning unit. The air conditioning system is operated by combining local control and remote control, and communicates with the host computer 1 through the CAN bus. The local control operation is integrated on the air conditioning unit, and the remote operation is realized through the host computer 1.

[0044] Furthermore, the sensor group is also used to collect compressor speed data, wind speed data, and internal pressure data of the refrigeration system. When the air-conditioning device 2 is running, it collects target space environment information and its own state information. According to its own state and ambient temperature and humidity feedback, it automatically adapts to the required cooling capacity and heating capacity by adjusting the compressor speed, wind speed, and the number of PTC openings. In addition, the host computer 1 is also used to collect the current working time of the air-conditioning system, the cumulative working time of the air-conditioning system, and the opening status of each PTC heater. So that the air-conditioning system can perform air-conditioning system health management and troubleshooting according to the self-state information, and at the same time, the air-conditioning device 2 can communicate with the host computer 1 through CAN, and upload the air-conditioning system information, health management information, and fault information to the host computer 1, so as to facilitate the unified management of various systems by the whole vehicle.

[0045] Among them, the internal temperature data of the air-conditioning device 2 includes the condenser inlet temperature data, the compressor exhaust temperature data, the air-conditioning device 2 outlet temperature data, and the air-conditioning device 2 return air temperature data; the internal humidity data of the air-conditioning device 2 includes the air-conditioning device 2 outlet humidity data and the air-conditioning device 2 return air humidity data; the internal current data of the air-conditioning device 2 includes the total working current data of the air-conditioning device 2, the compressor current data, and the PTC heater working current data; the internal voltage data of the air-conditioning device 2 includes the input voltage data of the air-conditioning device 2.

[0046] Therefore, the host computer 1 determines the health of the compressor in the air-conditioning system based on the compressor speed data, the compressor current data, and the compressor exhaust temperature data. When the compressor speed data is lower than the speed setting value and the compressor current data is greater than the current setting value, the host computer 1 determines that the compressor is abnormal. When the compressor exhaust temperature data is greater than the temperature setting value, the host computer 1 determines that the compressor is overheated and the compressor needs to be stopped and restarted after the temperature recovers. At this time, multiple refrigeration systems in the air-conditioning system operate alternately to prevent them from being unable to start for a long time after being shut down due to overheating protection.

[0047] The host computer 1 determines the health of the fan according to the total working current data of the air conditioner 2 and the working current data of the PTC heater: the fan current can be obtained by subtracting the working current data of the PTC heater from the total working current data of the air conditioner 2, and then the wind speed information can be used to determine whether the fan is working normally. The fan here is an evaporating fan or a condensing fan.

[0048] The host computer 1 determines the health of the condenser based on the condenser inlet air temperature data: if the condenser inlet air temperature is significantly higher than the external ambient temperature, it is possible that the hot air from the vehicle generator is sucked into the condenser. At this time, measures such as adding partitions or air guides are required to isolate the external hot air. This can also be used as a factor in determining whether the air conditioning system pressure is too high.

[0049] The host computer 1 determines the health status of the air conditioning system input based on the input voltage data of the air conditioning device 2 and the total working current data of the air conditioning device 2: The host computer 1 can determine whether the air conditioning system input is normal or whether it is operating over power consumption based on the input voltage data of the air conditioning device 2 and the total working current data of the air conditioning device 2.

[0050] The host computer 1 judges the health condition of the cooling capacity or heating capacity of the air-conditioning device 2 according to the air outlet humidity data of the air-conditioning device 2, the return air humidity data of the air-conditioning device 2, the air outlet temperature data of the air-conditioning device 2, and the return air temperature data of the air-conditioning device 2: according to the air outlet humidity data of the air-conditioning device 2, the return air humidity data of the air-conditioning device 2, the air outlet temperature data of the air-conditioning device 2, and the return air temperature data of the air-conditioning device 2, it can be judged whether the cooling capacity or heating capacity of the air-conditioning system meets the requirements.

[0051] The host computer 1 judges the health of the refrigeration system according to the internal pressure data of the refrigeration system, the condenser inlet temperature data, the air outlet humidity data of the air conditioner 2, the return air humidity data of the air conditioner 2, the air outlet temperature data of the air conditioner 2, and the return air temperature data of the air conditioner 2: judges whether the refrigerant is too much or too little according to the internal pressure data of the refrigeration system, the condenser inlet temperature data, the air outlet humidity data of the air conditioner 2, the return air humidity data of the air conditioner 2, the air outlet temperature data of the air conditioner 2, and the return air temperature data of the air conditioner 2; if the system pressure is too high and the condenser inlet temperature is the same as the external ambient temperature, it is preliminarily judged that the refrigerant is too much, and a part of the refrigerant needs to be released at this time; if the air conditioning system pressure is too low and the difference between the air outlet and return air temperature and humidity is small, it is preliminarily judged that the refrigerant is missing, and the refrigerant needs to be supplemented at this time.

[0052] The host computer 1 determines the service life of the air-conditioning system according to the accumulated working time of the air-conditioning device 2, thereby providing a basis for the maintenance of the air-conditioning system.

[0053] The host computer 1 determines the health status of the PTC heater according to the PTC heater startup status and the PTC heater working current data: whether each PTC heater is normal can be determined according to the PTC heater startup status and the PTC heater working current data.

[0054] Therefore, various information of the air-conditioning system during operation is collected by sensors such as temperature, humidity, and pressure arranged at various locations of the air-conditioning system, and then a comprehensive judgment is made on the collected information to determine whether the various components of the air-conditioning system are faulty or abnormal, and then the abnormal data is displayed on the controller screen and uploaded to the host computer 1. The technicians can directly check the air-conditioning information through the prompted information to quickly solve the problem. At the same time, the technicians can also update and improve the health management and troubleshooting of the air-conditioning system based on previous troubleshooting experience, and make the health management and troubleshooting of the air-conditioning system more abundant and intelligent through continuous updates and iterations.

[0055] In a second aspect, an embodiment of the present application provides a car, which includes the vehicle air-conditioning system provided by any of the above embodiments of the present application.

[0056] In the present application, by setting a sensor group on the air-conditioning device 2, the internal temperature data, humidity data, current data and voltage data of the air-conditioning device 2 can be comprehensively detected, and automatic adjustment and control can be performed based on the feedback of the internal temperature data, humidity data, current data and voltage data of the air-conditioning device 2; at the same time, its own working status is judged based on its own status information to facilitate health management.

[0057] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0058] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0059] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A vehicle air conditioning system, characterized in that: It includes: An air conditioning device (2), the air conditioning device (2) comprising a plurality of refrigeration systems arranged in parallel; A sensor group, the sensor group comprising a plurality of sensors, a portion of the sensors being arranged in the heat preservation chamber (5) and used to collect temperature data and humidity data of the heat preservation chamber (5), and another portion of the sensors being connected to the air conditioning device (2) and used to collect temperature data, humidity data, current data and voltage data inside the air conditioning device (2); A host computer (1), the host computer (1) is connected to the sensor group, the host computer (1) controls the start and stop and temperature adjustment of the air conditioning device (2) through the temperature data and humidity data of the heat preservation chamber (5), the host computer (1) determines the health status of the air conditioning system through the internal temperature data, humidity data, current data and voltage data of the air conditioning device (2), and feeds back health management information.

2. The vehicle air conditioning system according to claim 1, characterized in that: The refrigeration system integrates a compressor, a condenser, a condensing fan, an evaporator, an evaporating fan, an expansion valve and a PTC heater.

3. The vehicle air conditioning system according to claim 2, characterized in that: The sensor group is also used to collect compressor speed data, wind speed data, and refrigeration system internal pressure data; The internal temperature data of the air conditioner (2) includes condenser inlet temperature data, compressor exhaust temperature data, air outlet temperature data of the air conditioner (2), and return air temperature data of the air conditioner (2); The internal humidity data of the air conditioner (2) includes air outlet humidity data of the air conditioner (2) and air return humidity data of the air conditioner (2); The internal current data of the air conditioner (2) includes total operating current data of the air conditioner (2), compressor current data, and PTC heater operating current data; The internal voltage data of the air conditioner (2) includes input voltage data of the air conditioner (2).

4. The vehicle air conditioning system according to claim 3, characterized in that: The host computer (1) determines the health status of the compressor in the air conditioning system based on the compressor speed data, the compressor current data, and the compressor exhaust temperature data. When the compressor speed data is lower than the speed setting value and the compressor current data is greater than the current setting value, the host computer (1) determines that the compressor is abnormal. When the compressor exhaust temperature data is greater than the temperature setting value, the host computer (1) determines that the compressor is overheated. The host computer (1) determines the health status of the fan according to the total working current data of the air conditioner (2) and the working current data of the PTC heater; The host computer (1) determines the health status of the condenser according to the condenser inlet air temperature data; The host computer (1) determines the health status of the air conditioning system input according to the input voltage data of the air conditioning device (2) and the total working current data of the air conditioning device (2); The host computer (1) determines the health status of the cooling capacity or heating capacity of the air conditioner (2) based on the air outlet humidity data of the air conditioner (2), the air return humidity data of the air conditioner (2), the air outlet temperature data of the air conditioner (2), and the air return temperature data of the air conditioner (2); The host computer (1) determines the health status of the refrigeration system based on the internal pressure data of the refrigeration system, the condenser inlet air temperature data, the air outlet humidity data of the air conditioner (2), the air return humidity data of the air conditioner (2), the air outlet temperature data of the air conditioner (2), and the air return temperature data of the air conditioner (2); The host computer (1) determines the service life of the air conditioning system according to the accumulated working time of the air conditioning device (2); The host computer (1) determines the health status of the PTC heater according to the start-up status of the PTC heater and the operating current data of the PTC heater.

5. The vehicle air conditioning system according to claim 2, characterized in that: The PTC heater is connected in series with a fuse.

6. The vehicle air conditioning system according to claim 1, characterized in that: An air duct is provided at the air outlet of the air conditioning device (2), and the air duct is used to communicate with the interior of the thermal insulation cabin (5).

7. The vehicle air conditioning system according to claim 6, characterized in that: The air duct comprises an air outlet duct (3) and an air return duct (4); the air outlet duct (3) is arranged at the air outlet of the air conditioning device (2); and the return air duct (4) is arranged at the air return outlet of the air conditioning device (2).

8. The vehicle air conditioning system according to claim 7, characterized in that: An air duct fan is arranged in the air outlet duct (3).

9. The vehicle air conditioning system according to claim 8, characterized in that: The air outlet duct (3) comprises an air supply hose (30) and an air supply rigid pipe (31); one end of the air supply hose (30) is connected to the air conditioning device (2), and the other end is connected to the air supply rigid pipe (31); the air duct fan is arranged inside the air supply rigid pipe (31); one end of the air supply rigid pipe (31) is used to be connected to the heat preservation cabin (5).

10. An automobile, characterized in that: It includes: A vehicle air conditioning system as claimed in any one of claims 1 to 9.

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