Vehicle thermal management system and vehicle

Abstract

The utility model relates to a vehicle heat management system and a vehicle, the vehicle heat management system comprises a compressor and a plurality of vehicle-mounted refrigerators, each vehicle-mounted refrigerator comprises a refrigerator heat exchanger used for exchanging heat with an article containing space of the vehicle-mounted refrigerator, and the plurality of refrigerator heat exchangers are connected in parallel; an outlet of the compressor is connected with inlets of the refrigerator heat exchangers, and outlets of the refrigerator heat exchangers are connected with an inlet of the compressor. The multiple vehicle-mounted refrigerators are each provided with an independent refrigerator heat exchanger and an independent article containing space, and the storage space in the vehicle can be increased. Inlets of the multiple refrigerator heat exchangers are connected with an outlet of the same compressor, outlets of the multiple refrigerator heat exchangers are connected with an inlet of the same compressor, and on the premise that the vehicle cost is not increased too much and the vehicle size is not occupied too much as much as possible, the heat exchange efficiency is improved. The effects of increasing the storage space of the vehicle and meeting the requirements of users for different storage temperatures of different foods are achieved.

Description

[0001] Cross-references

[0002] This application is based on the Chinese patent application with application number 202421506937.1 and application date June 27, 2024, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application. Technical Field

[0003] The present disclosure relates to the technical field of vehicle thermal management, and in particular, to a vehicle thermal management system and a vehicle. Background Art

[0004] To enhance the user experience, more and more car models are equipped with onboard refrigerators to preserve or refrigerate food, drinks, medicine, etc. However, the onboard refrigerators in related art vehicles have a single storage temperature and cannot meet the different storage temperature requirements of different foods. Utility Model Content

[0005] The purpose of the present disclosure is to provide a vehicle thermal management system and a vehicle to solve the above technical problems.

[0006] To achieve the above objectives, as a first aspect of the present disclosure, the present disclosure provides a vehicle thermal management system, comprising a compressor and a plurality of vehicle refrigerators, each of the vehicle refrigerators comprising a refrigerator heat exchanger for exchanging heat with an article storage space of the vehicle refrigerator, wherein the plurality of refrigerator heat exchangers are connected in parallel.

[0007] The outlet of the compressor is connected to the inlets of the plurality of refrigerator heat exchangers, and the outlets of the plurality of refrigerator heat exchangers are connected to the inlet of the compressor.

[0008] Optionally, the vehicle thermal management system further includes a first heat exchanger and a plurality of refrigerator expansion valves, wherein the plurality of refrigerator expansion valves correspond one-to-one to the plurality of refrigerator heat exchangers;

[0009] The outlet of the compressor is connected to the inlet of the first heat exchanger, the outlet of the first heat exchanger is connected to the inlets of multiple refrigerator expansion valves, and the outlet of each refrigerator expansion valve is connected to the inlet of the corresponding refrigerator heat exchanger.

[0010] Optionally, the vehicle refrigerator further comprises a heating element, and the heating element is used to heat the air in the item storage space; or,

[0011] The vehicle-mounted refrigerator further includes a cooling element, which is used to cool the air in the article receiving space.

[0012] Optionally, the refrigerator heat exchanger comprises a heat exchange pipe and a heat exchange shell, an inner surface of the heat exchange shell defining the article containing space, an outlet of the compressor being connected with an inlet of the heat exchange pipe, an outlet of the heat exchange pipe being connected with an inlet of the compressor.

[0013] The heat exchange pipe is in heat conduction contact with an outer surface of the heat exchange shell, so that the refrigerant in the heat exchange pipe can exchange heat with the air in the article containing space through the heat exchange shell.

[0014] Optionally, a thermal conductivity coefficient of the heat exchange shell is 201 W / mk-237 W / mk.

[0015] Optionally, the vehicle-mounted refrigerator further comprises a fan, the fan being used for accelerating airflow flow of the article containing space.

[0016] Optionally, an air inlet is formed on the heat exchange shell, and the fan is arranged at the air inlet.

[0017] Optionally, the vehicle-mounted refrigerator further comprises a heating member, the heating member comprising a heating film, the heating film being covered on an outer surface of the heat exchange shell and / or a side of the heat exchange pipe away from the heat exchange shell; or,

[0018] The vehicle-mounted refrigerator further comprises a cooling member, the cooling member comprising a semiconductor refrigeration sheet, the semiconductor refrigeration sheet being covered on an outer surface of the heat exchange shell and / or a side of the heat exchange pipe away from the heat exchange shell.

[0019] Optionally, the vehicle thermal management system further comprises a first heat exchanger and a plurality of refrigerator expansion valves, the plurality of refrigerator expansion valves corresponding to the plurality of refrigerator heat exchangers one by one; an outlet of the compressor is connected with inlets of the plurality of refrigerator heat exchangers, an outlet of each refrigerator heat exchanger is connected with an inlet of the corresponding refrigerator expansion valve, outlets of the plurality of refrigerator expansion valves are connected with an inlet of the first heat exchanger, and an outlet of the first heat exchanger is connected with an inlet of the compressor.

[0020] Optionally, the vehicle thermal management system further comprises an air conditioning system, the air conditioning system comprising the compressor.

[0021] Optionally, the air conditioning system further comprises a second heat exchanger and an air conditioning expansion valve, the second heat exchanger being connected with the plurality of refrigerator heat exchangers in parallel with each other, an outlet of the compressor being further connected with an inlet of the second heat exchanger via the air conditioning expansion valve, and an outlet of the second heat exchanger being connected with an inlet of the compressor.

[0022] Optionally, the vehicle thermal management system further comprises a pressure regulating structure, wherein the inlet of the pressure regulating structure is connected to the outlet of the second heat exchanger, and the outlet of the pressure regulating structure is connected to the inlet of the compressor;

[0023] The pressure regulating structure has a first conduction state. In the first conduction state, the refrigerant pressure on the inlet side of the pressure regulating structure is different from the refrigerant pressure on the outlet side of the pressure regulating structure, so that the refrigerant pressure in the second heat exchanger can be different from the refrigerant pressure in the refrigerator heat exchanger.

[0024] Optionally, in the first conduction state, the refrigerant pressure on the inlet side of the pressure regulating structure is greater than the refrigerant pressure on the outlet side of the pressure regulating structure, so that the refrigerant pressure in the second heat exchanger is greater than the refrigerant pressure in the refrigerator heat exchanger.

[0025] Optionally, the pressure regulating structure further has a second conduction state, in which the refrigerant pressure at the inlet side of the pressure regulating structure is substantially the same as the refrigerant pressure at the outlet side of the pressure regulating structure.

[0026] Optionally, the pressure regulating structure is a throttle valve.

[0027] Optionally, in the first conducting state, an absolute value of a difference between a refrigerant pressure at an inlet side of the pressure regulating structure and a refrigerant pressure at an outlet side of the pressure regulating structure is 150 kPa-200 kPa.

[0028] Optionally, the air conditioning system further comprises a first temperature and pressure sensor, wherein the first temperature and pressure sensor is located downstream of the second heat exchanger and upstream of the pressure regulating structure;

[0029] The vehicle thermal management system further includes a second temperature and pressure sensor, and each refrigerator heat exchanger is provided with the second temperature and pressure sensor downstream;

[0030] The vehicle thermal management system further includes a controller, and the first temperature and pressure sensor, the second temperature and pressure sensor, and the pressure regulating structure are all electrically connected to the controller.

[0031] As a second aspect of the present disclosure, the present disclosure also provides a vehicle, comprising the above-mentioned vehicle thermal management system.

[0032] By the technical solution, the multiple vehicle refrigerators each have an independent article storage space, which can increase the storage space in the vehicle and store more articles with temperature requirements. In addition, the multiple vehicle refrigerators can be installed at different positions in the passenger compartment of the vehicle, so as to facilitate users at different positions in the passenger compartment to take articles in the vehicle refrigerators. Since each article storage space is provided with a refrigerator heat exchanger, each article storage space can have different storage temperatures to meet the needs of users for different storage temperatures of different foods.

[0033] In addition, the inlets of the multiple refrigerator heat exchangers are connected to the outlet of the same compressor, and the outlets of the multiple refrigerator heat exchangers are connected to the inlet of the same compressor, which can increase the storage space of the vehicle and meet the needs of users for different storage temperatures of different foods as much as possible without increasing the cost and volume of the vehicle.

[0034] It should be noted that the refrigerator heat exchanger can be used as an evaporator to cool the air in the article storage space to meet the needs of refrigerating or freezing the articles in the article storage space. The refrigerator heat exchanger can also be used as a condenser to heat the air in the article storage space to heat and keep warm the articles in the article storage space. The present disclosure does not limit whether the refrigerator heat exchanger is used as an evaporator or a condenser, or whether the refrigerator heat exchanger can be used as an evaporator when cooling is required and as a condenser when heating is required.

[0035] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following specific embodiments to explain the present disclosure, but do not constitute a limitation of the present disclosure. In the drawings:

[0037] Figure 1 is a flow path diagram of a vehicle thermal management system provided by an embodiment of the present disclosure;

[0038] Figure 2 is a partial cross-sectional view of a refrigerator heat exchanger of a vehicle refrigerator provided by an embodiment of the present disclosure.

[0039] LIST OF ELEMENTS

[0040] 100 - vehicle thermal management system; 1 - air conditioning system; 12 - second heat exchanger; 13 - first temperature pressure sensor; 14 - compressor; 15 - first heat exchanger; 16 - air conditioning expansion valve; 17 - gas-liquid separator; 22 - vehicle refrigerator; 221 - heat exchange pipe; 222 - heat exchange shell; 223 - refrigerator heat exchanger; 224 - fan; 225 - heating element; 25 - second temperature pressure sensor; 26 - refrigerator expansion valve; 3 - pressure regulating structure. DETAILED DESCRIPTION

[0041] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0042] In the present disclosure, unless otherwise stated, the orientation words such as "upstream, downstream" are generally defined based on the direction of refrigerant flow, and "inner, outer" refer to the inner and outer of the profile of the corresponding components. In addition, the terms "first", "second" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present disclosure, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected", "mounted" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0044] As a first aspect of the present disclosure, as shown in Figures 1 to 2 The present disclosure provides a vehicle thermal management system 100, comprising a compressor 14 and a plurality of vehicle refrigerators 22, each vehicle refrigerator 22 comprising a refrigerator heat exchanger 223 for heat exchange with an article containing space of the vehicle refrigerator 22, and the plurality of refrigerator heat exchangers 223 are connected in parallel with each other. The outlet of the compressor 14 is connected with the inlet of the plurality of refrigerator heat exchangers 223, and the outlet of the plurality of refrigerator heat exchangers 223 is connected with the inlet of the compressor 14.

[0045] Through the above technical solution, the plurality of vehicle refrigerators 22 each have an independent article containing space, which can increase the storage space in the vehicle and store more articles with requirements for storage temperature. In addition, the plurality of vehicle refrigerators 22 can be installed at different positions in the passenger compartment of the vehicle, so as to facilitate users located at different positions in the passenger compartment to take the articles in the vehicle refrigerators 22. Since each article containing space is provided with a refrigerator heat exchanger 223, each article containing space can have different storage temperatures to meet the needs of users for different storage temperatures of different foods.

[0046] In addition, the inlets of the plurality of refrigerator heat exchangers 223 are connected to the outlet of the same compressor 14, and the outlets of the plurality of refrigerator heat exchangers 223 are connected to the inlet of the same compressor 14, so that the vehicle storage space can be increased and the user's demand for different storage temperatures for different foods can be met without increasing the cost and volume of the vehicle too much.

[0047] It should be noted that the refrigerator heat exchanger 223 can be used as an evaporator to cool the air in the article storage space to meet the demand for refrigerating or freezing the articles in the article storage space. The refrigerator heat exchanger 223 can also be used as a condenser to heat the air in the article storage space to heat and keep warm the articles in the article storage space. The present disclosure does not limit the use of the refrigerator heat exchanger 223 as an evaporator or a condenser, or as an evaporator when cooling is needed and as a condenser when heating is needed.

[0048] In an exemplary embodiment provided by the present disclosure, as shown in Figure 1 The vehicle thermal management system 100 further includes a first heat exchanger 15 and a plurality of refrigerator expansion valves 26, which correspond to the plurality of refrigerator heat exchangers 223. When the refrigerator heat exchanger 223 is used for refrigeration, the outlet of the compressor 14 is connected to the inlet of the first heat exchanger 15, the outlet of the first heat exchanger 15 is connected to the inlet of the plurality of refrigerator expansion valves 26, and the outlet of each refrigerator expansion valve 26 is connected to the inlet of the corresponding refrigerator heat exchanger 223. The compressor 14, the first heat exchanger 15, the refrigerator expansion valve 26, and the refrigerator heat exchanger 223 can be connected in series to form a refrigerant circuit. The high-temperature and high-pressure gaseous refrigerant discharged from the compressor 14 flows into the first heat exchanger 15 and releases heat to the atmosphere in the first heat exchanger 15. The refrigerant after heat release is throttled and depressurized by the refrigerator expansion valve 26 to become low-temperature and low-pressure liquid refrigerant, which enters the refrigerator heat exchanger 223 to absorb the temperature of the air in the article storage space, thereby achieving the refrigeration or freezing function of the vehicle refrigerator 22.

[0049] The refrigerator expansion valve 26 can control the on-off of the refrigerant flow path of the refrigerator heat exchanger 223, i.e., control whether the refrigerant flowing out of the outlet of the first heat exchanger 15 can enter the refrigerator heat exchanger 223 or not, so that the plurality of refrigerator heat exchangers 223 can operate simultaneously or only partially. In addition, the refrigerator expansion valve 26 can also adjust the evaporation pressure and temperature of the refrigerant entering the corresponding refrigerator heat exchanger 223, so that the article storage spaces of the plurality of vehicle refrigerators 22 can have different preservation temperatures.

[0050] In an exemplary embodiment provided in the present disclosure, when the refrigerator heat exchanger 223 is used for heating, the outlet of the compressor 14 is connected with the inlets of the plurality of refrigerator heat exchangers 223, the outlet of each refrigerator heat exchanger 223 is connected with the inlet of the corresponding refrigerator expansion valve 26, the outlet of the plurality of refrigerator expansion valves 26 is connected with the inlet of the first heat exchanger 15, and the outlet of the first heat exchanger 15 is connected with the inlet of the compressor 14. Thus, the refrigerant in the refrigerator heat exchanger 223 can be used to heat the article storage space of the vehicle-mounted refrigerator 22, so as to realize the heating function of the vehicle-mounted refrigerator 22.

[0051] In order to enrich the functions of the vehicle-mounted refrigerator 22, as an embodiment, as shown in Figure 2 The vehicle-mounted refrigerator 22 can further include a heating device 225 for heating the air in the article storage space. When the refrigerator heat exchanger 223 is used as an evaporator for cooling the article storage space, if the user wants to heat the articles stored in the article storage space, the compressor 14 and the refrigerator heat exchanger 223 can not be started, but the air in the article storage space is heated by the heating device 225, so that the air in the article storage space can be kept at a certain temperature to heat or keep warm the articles.

[0052] In addition, when the user has a refrigeration demand for one of the plurality of vehicle-mounted refrigerators 22 and a heating demand for another vehicle-mounted refrigerator 22, the corresponding refrigerator heat exchanger 223 of the one vehicle-mounted refrigerator 22 can be operated to refrigerate the article storage space in the one vehicle-mounted refrigerator 22, and the corresponding refrigerator heat exchanger 223 of the other vehicle-mounted refrigerator 22 is closed, and the corresponding heating device 225 of the other vehicle-mounted refrigerator 22 is opened, so as to realize the effect that one vehicle-mounted refrigerator 22 is refrigerated and the other vehicle-mounted refrigerator 22 is heated.

[0053] In addition, when the refrigerator heat exchanger 223 is used as a condenser for heating the article storage space, if the user wants to quickly increase the temperature of the article storage space, the refrigerator heat exchanger 223 and the heating device 225 can also be started at the same time to increase the temperature increasing speed in the article storage space.

[0054] As another embodiment, the vehicle-mounted refrigerator 22 can further include a cooling device for cooling the air in the article storage space. When the refrigerator heat exchanger 223 is used as a condenser for heating the article storage space, if the user wants to cool the articles stored in the article storage space, the compressor 14 and the refrigerator heat exchanger 223 can not be started, but the air in the article storage space is cooled by the cooling device, so as to cool or freeze the articles.

[0055] In addition, when a user has a refrigeration demand for one of the plurality of vehicle refrigerators 22 and a heating demand for another vehicle refrigerator 22, the refrigerator heat exchanger 223 corresponding to the one vehicle refrigerator 22 can be operated to heat the article storage space in the one vehicle refrigerator 22, the refrigerator heat exchanger 223 corresponding to the other vehicle refrigerator 22 can be closed, and the cooling member corresponding to the other vehicle refrigerator 22 can be turned on, so that the one vehicle refrigerator 22 is heated and the other vehicle refrigerator 22 is cooled.

[0056] In addition, when the refrigerator heat exchanger 223 is used as an evaporator to cool the article storage space, if the user wants to quickly reduce the temperature of the article storage space, the refrigerator heat exchanger 223 and the cooling member can be turned on at the same time to improve the cooling speed in the article storage space.

[0057] To improve the heat exchange effect of the refrigerator heat exchanger 223 and the air in the article storage space, the refrigerator heat exchanger 223 can optionally include a heat exchange pipe 221 and a heat exchange shell 222, as shown in FIG. 2. Figure 2 The inner surface of the heat exchange shell 222 defines the article storage space, the outlet of the compressor 14 is connected to the inlet of the heat exchange pipe 221, the outlet of the heat exchange pipe 221 is connected to the inlet of the compressor 14, and the heat exchange pipe 221 is in thermal contact with the outer surface of the heat exchange shell 222, so that the refrigerant in the heat exchange pipe 221 can directly exchange heat with the air in the article storage space through the heat exchange shell 222.

[0058] The inlet and outlet of the compressor 14 are connected to the outlet and inlet of the heat exchange pipe 221, which can provide refrigerant for heat exchange of the heat exchange pipe 221. The heat exchange pipe 221 is in thermal contact with the outer surface of the heat exchange shell 222, and the inner surface of the heat exchange shell 222 defines the article storage space, so that the heat exchange shell 222 can directly contact the air in the article storage space, and the cold or heat of the refrigerant in the heat exchange pipe 221 can be directly conducted to the heat exchange shell 222 through the heat exchange pipe 221, directly exchange heat with the air in the article storage space through the heat exchange shell 222, reduce the loss of cold or heat in the conduction process, and improve the refrigeration or heating efficiency of the vehicle refrigerator 22.

[0059] Optionally, the thermal conductivity of the heat exchange shell 222 can be 201 W / mk-237 W / mk. The material with this coefficient has good thermal conductivity and can meet the heat exchange requirement of the heat exchange pipe 221 exchanging heat with the air in the article storage space through the heat exchange shell 222.

[0060] The specific material of the heat exchange shell 222 is not limited in the present disclosure, for example, the material of the heat exchange shell 222 can be aluminum or copper.

[0061] As mentioned above, the vehicle refrigerator 22 can include a heating member 225, as shown in FIG. 2.Figure 2 As shown, in an embodiment provided by the present disclosure, the heating member 225 can include a heating film, which is covered on the outer surface of the heat exchange housing 222 and / or the side of the heat exchange pipe 221 away from the heat exchange housing 222.

[0062] For the above-mentioned embodiment in which the vehicle-mounted refrigerator 22 includes a cooling member, the cooling member can include a semiconductor refrigeration sheet, which is covered on the outer surface of the heat exchange housing 222 and / or the side of the heat exchange pipe 221 away from the heat exchange housing 222.

[0063] The heating film or semiconductor refrigeration sheet covered on the outer surface of the heat exchange housing 222 can directly exchange heat with the heat exchange housing 222 and reduce heat loss in the heating or refrigeration process by exchanging heat with the air in the article storage space through the heat exchange housing 222.

[0064] The heating film or semiconductor refrigeration sheet covered on the side of the heat exchange pipe 221 away from the heat exchange housing 222 can not only exchange heat with the air in the article storage space through the heat exchange pipe 221 and the heat exchange housing 222, but also press the heat exchange pipe 221 against the heat exchange housing 222 to ensure the heat-conducting contact between the heat exchange pipe 221 and the heat exchange housing 222.

[0065] To further improve the heat exchange efficiency, optionally, as shown, Figure 1 The vehicle-mounted refrigerator 22 further includes a fan 224, which is used to accelerate the airflow in the article storage space, for example, the fan 224 is used to generate airflow that can exchange heat with the refrigerant in the heat exchange pipe 221 and enter the article storage space. The fan 224 can accelerate the flow between the air near the heat exchange pipe 221 and the air in the article storage space, thereby improving the heat exchange efficiency between the heat exchange pipe 221 and the air in the article storage space and improving the heating or refrigeration speed of the vehicle-mounted refrigerator 22. It can be understood that when heated by the heating member 225 or cooled by the cooling member, the fan 224 can accelerate the flow between the air near the heating member 225 or the cooling member and the air in the article storage space, thereby improving the heat exchange efficiency between the heating member 225 or the cooling member and the air in the article storage space and improving the heating or refrigeration speed of the vehicle-mounted refrigerator 22.

[0066] Optionally, an air inlet is formed on the heat exchange housing 222, and the fan 224 is arranged at the air inlet. The air inlet is arranged on the heat exchange housing 222 to accommodate the fan 224, so that the fan 224 does not occupy the volume of the article storage space. At the same time, the air inlet also enables the fan 224 to directly drive the air on both sides of the air inlet to flow relative to each other, forming a convection, thereby improving the heat exchange efficiency of the heat exchange pipe 221.

[0067] As shown, Figure 1As shown, the vehicle thermal management system 100 can further comprise an air conditioning system 1, which comprises the compressor 14 mentioned above. In other words, the compressor 14 connected to the refrigerator heat exchangers 223 of the plurality of vehicle refrigerators 22 is the compressor 14 of the air conditioning system 1, that is, the compressor 14 not only plays a role of compressing and driving refrigerant for the refrigerant flow path where the devices (such as air conditioning evaporator, air conditioning condenser, etc.) of the air conditioning system 1 are located, but also plays a role of compressing and driving refrigerant for the refrigerant flow path where the plurality of refrigerator heat exchangers 223 of the plurality of vehicle refrigerators 22 are located, so as to achieve the effect of using the same compressor 14 to provide refrigerant for different thermal management devices.

[0068] By using the compressor 14 in the air conditioning system 1 to provide flowing refrigerant for the refrigerator heat exchangers 223 of the plurality of vehicle refrigerators 22, the utilization rate of the compressor 14 can be improved, the integration of the vehicle thermal management system 100 can be improved, the number of devices required by the plurality of vehicle refrigerators 22 can be reduced, and the cost significantly increased due to the setting of the plurality of vehicle refrigerators 22 can be avoided.

[0069] Optionally, the air conditioning system 1 can further comprise the first heat exchanger 15 mentioned above, that is, the first heat exchanger 15 connected to the refrigerator heat exchangers 223 of the plurality of vehicle refrigerators 22 is the first heat exchanger 15 of the air conditioning system 1.

[0070] Optionally, as shown in the first embodiment of the vehicle thermal management system 100, Figure 1 As shown, the air conditioning system 1 further comprises a second heat exchanger 12 and an air conditioning expansion valve 16, the second heat exchanger 12 is connected in parallel with the plurality of refrigerator heat exchangers 223, the outlet of the compressor 14 is further connected to the inlet of the second heat exchanger 12 through the air conditioning expansion valve 16, and the outlet of the second heat exchanger 12 is connected to the inlet of the compressor 14.

[0071] The compressor 14, the first heat exchanger 15, the air conditioning expansion valve 16, and the second heat exchanger 12 can be connected in series to form a refrigeration circuit, so that the second heat exchanger 12 can absorb heat from the passenger compartment as an evaporator to realize the refrigeration function of the air conditioning system 1. Moreover, the second heat exchanger 12 is connected in parallel with the plurality of refrigerator heat exchangers 223, so that the vehicle refrigerator 22 and the air conditioning system 1 can operate simultaneously to meet the needs of users for simultaneous refrigeration of the passenger compartment and the vehicle refrigerator 22.

[0072] Optionally, as shown in the first embodiment of the vehicle thermal management system 100, Figure 1 As shown, the air conditioning system 1 further comprises a gas-liquid separator 17, the inlet of the gas-liquid separator 17 is connected to the outlets of the plurality of refrigerator heat exchangers 223 and the second heat exchanger 12, and the outlet of the gas-liquid separator 17 is connected to the inlet of the compressor 14. The refrigerant flowing out of the outlets of the refrigerator heat exchangers 223 and the second heat exchanger 12 passes through the gas-liquid separator 17 before returning to the front of the compressor 14, so that the liquid and gas in the refrigerant can be separated, and the gas refrigerant returns to the compressor 14 to prevent the compressor 14 from being damaged.

[0073] To further improve the refrigeration effect of the vehicle refrigerator 22, optionally, as shown in Figure 1 The vehicle thermal management system 100 further comprises a pressure regulating structure 3, an inlet of the pressure regulating structure 3 is connected with the outlet of the second heat exchanger 12, and an outlet of the pressure regulating structure 3 is connected with the inlet of the compressor 14. The pressure regulating structure 3 has a first conduction state, in which the refrigerant pressure at the inlet side of the pressure regulating structure 3 is different from the refrigerant pressure at the outlet side of the pressure regulating structure 3, so that the refrigerant pressure in the second heat exchanger 12 can be different from the refrigerant pressure in the refrigerator heat exchanger 223.

[0074] Since the inlet of the pressure regulating structure 3 is connected with the outlet of the second heat exchanger 12, the refrigerant pressure at the inlet of the pressure regulating structure 3 is equal to or substantially equal to the refrigerant pressure in the second heat exchanger 12, and since the second heat exchanger 12 is connected in parallel with the refrigerator heat exchanger 223, the outlet of the pressure regulating structure 3 is in communication with the outlet of the refrigerator heat exchanger 223, and the refrigerant pressure at the outlet of the pressure regulating structure 3 is equal to or substantially equal to the refrigerant pressure at the outlet of the refrigerator heat exchanger 223.

[0075] The refrigerant pressure in the heat exchanger (i.e. the evaporation pressure of the refrigerant) is positively correlated with the evaporation temperature of the refrigerant, that is, the smaller the refrigerant pressure, the lower the evaporation temperature of the refrigerant. By adjusting the refrigerant pressures at the inlet side and the outlet side of the pressure regulating structure 3, the refrigerant pressures in the second heat exchanger 12 and the refrigerator heat exchanger 223 can be adjusted, so that the refrigerant pressures in the second heat exchanger 12 and the refrigerator heat exchanger 223 are different, thereby making the evaporation temperatures of the refrigerants in the second heat exchanger 12 and the refrigerator heat exchanger 223 different, so that the second heat exchanger 12 and the refrigerator heat exchanger 223 can have different cooling speeds to meet the different temperature requirements of the user for the temperature in the passenger compartment and the temperature in the vehicle refrigerator 22 when the vehicle refrigerator 22 and the air conditioning system 1 are used at the same time.

[0076] Optionally, as shown in Figure 1As shown, in the first conduction state, the refrigerant pressure at the inlet side of the pressure regulating structure 3 is greater than the refrigerant pressure at the outlet side of the pressure regulating structure 3, so that the refrigerant pressure in the second heat exchanger 12 is greater than the refrigerant pressure in the refrigerator heat exchanger 223. Since in the first conduction state, the refrigerant pressure in the second heat exchanger 12 is greater than the refrigerant pressure in the refrigerator heat exchanger 223, the evaporation temperature of the refrigerant in the second heat exchanger 12 is greater than the evaporation temperature of the refrigerant in the refrigerator heat exchanger 223, i.e., in the case of normal operation of the air conditioning system 1, the refrigeration temperature of the vehicle-mounted refrigerator 22 is lower than the refrigeration temperature of the air conditioning system 1, thereby meeting the demand for lower refrigeration temperature of the vehicle-mounted refrigerator 22 in the case of the second heat exchanger 12 and the refrigerator heat exchanger 223 sharing the compressor 14 and the second heat exchanger 12 and the refrigerator heat exchanger 223 refrigerating at the same time, improving the refrigeration capacity and refrigeration speed of the vehicle-mounted refrigerator 22.

[0077] Optionally, the pressure regulating structure 3 also has a second conduction state, in which the refrigerant pressure at the inlet side of the pressure regulating structure 3 is the same as the refrigerant pressure at the outlet side of the pressure regulating structure 3. In the second conduction state, the refrigerant pressures at the inlet and outlet of the pressure regulating structure 3 are the same, and the pressure regulating structure 3 can be regarded as a flow-through pipeline, at which time the refrigerant pressures in the parallel-connected second heat exchanger 12 and the refrigerator heat exchanger 223 are the same, and the evaporation temperatures of the refrigerants are also the same.

[0078] When the vehicle-mounted refrigerator 22 has high demand and the air conditioner has low demand, the pressure regulating structure 3 can be in the first conduction state to preferentially meet the refrigeration demand of the vehicle-mounted refrigerator 22; when the vehicle-mounted refrigerator 22 has low demand and the air conditioner has high demand, the pressure regulating structure 3 can be in the second conduction state to preferentially meet the refrigeration demand of the air conditioning system 1.

[0079] The present disclosure does not limit the specific structure of the pressure regulating structure 3, and in an embodiment provided by the present disclosure, the pressure regulating structure 3 can be a throttle valve. The throttle valve can adjust the amount of refrigerant passing through the throttle valve by adjusting the opening degree thereof, so that the refrigerant pressures at the inlet side and the outlet side of the throttle valve are different. In other embodiments, the pressure regulating structure 3 can also be a pressure regulating valve, a flow regulating valve, etc.

[0080] Optionally, in the first conduction state, the absolute value of the difference between the refrigerant pressure at the inlet side of the pressure regulating structure 3 and the refrigerant pressure at the outlet side of the pressure regulating structure 3 is 150 kPa-200 kPa. When the difference in refrigerant pressure is within this range, the refrigeration temperature of the vehicle-mounted refrigerator 22 can be lowered as much as possible while ensuring normal operation of the air conditioning system 1, thereby meeting the refrigeration needs of the vehicle-mounted refrigerator 22.

[0081] To improve the intelligent degree of the vehicle thermal management system 100, the air conditioning system 1 optionally further comprises a first temperature pressure sensor 13, which is located downstream of the second heat exchanger 12 and upstream of the pressure regulating structure 3. The vehicle thermal management system 100 further comprises a second temperature pressure sensor 25, and each refrigerator heat exchanger 223 is provided with a second temperature pressure sensor 25 downstream thereof. The vehicle thermal management system 100 further comprises a controller, and the first temperature pressure sensor 13, the second temperature pressure sensor 25 and the pressure regulating structure 3 are electrically connected to the controller.

[0082] The first temperature pressure sensor 13 can detect the refrigerant pressure and the temperature of the refrigerant in the second heat exchanger 12, and the second temperature pressure sensor 25 can detect the refrigerant pressure and the temperature of the refrigerant in the refrigerator heat exchanger 223, and transmit the detected pressure and temperature information to the controller. The controller can adjust the difference between the refrigerant pressure at the inlet side of the pressure regulating structure 3 and the refrigerant pressure at the outlet side of the pressure regulating structure 3 according to the obtained pressure and temperature data, so that the air conditioning system 1 and the plurality of vehicle-mounted refrigerators 22 can operate at the required refrigeration temperature of the user.

[0083] As a second aspect of the present disclosure, the present disclosure provides a vehicle comprising the above-mentioned vehicle thermal management system 100.

[0084] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept range of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection range of the present disclosure.

[0085] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0086] In addition, various different embodiments of the present disclosure can also be combined in any appropriate manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.

Claims

1. A vehicle thermal management system, characterized in that: The vehicle refrigerator comprises a compressor and a plurality of vehicle refrigerators, each of the vehicle refrigerators comprises a refrigerator heat exchanger for exchanging heat with an article storage space of the vehicle refrigerator, and the plurality of refrigerator heat exchangers are connected in parallel; The outlet of the compressor is connected to the inlets of the plurality of refrigerator heat exchangers, and the outlets of the plurality of refrigerator heat exchangers are connected to the inlet of the compressor.

2. The vehicle thermal management system according to claim 1, characterized in that: The vehicle thermal management system further includes a first heat exchanger and a plurality of refrigerator expansion valves, wherein the plurality of refrigerator expansion valves correspond one to one with the plurality of refrigerator heat exchangers; The outlet of the compressor is connected to the inlet of the first heat exchanger, the outlet of the first heat exchanger is connected to the inlets of multiple refrigerator expansion valves, and the outlet of each refrigerator expansion valve is connected to the inlet of the corresponding refrigerator heat exchanger.

3. The vehicle thermal management system according to claim 1, characterized in that: The vehicle refrigerator further includes a heating element, and the heating element is used to heat the air in the article storage space; or The vehicle-mounted refrigerator further includes a cooling element, which is used to cool the air in the article receiving space.

4. The vehicle thermal management system according to claim 1, characterized in that: The refrigerator heat exchanger includes a heat exchange tube and a heat exchange shell, the inner surface of the heat exchange shell defines the article storage space, the outlet of the compressor is connected to the inlet of the heat exchange tube, and the outlet of the heat exchange tube is connected to the inlet of the compressor; The heat exchange tube is in thermal contact with the outer surface of the heat exchange shell, so that the refrigerant in the heat exchange tube can exchange heat with the air in the article storage space through the heat exchange shell.

5. The vehicle thermal management system according to claim 4, characterized in that: The thermal conductivity of the heat exchange shell is 201W / mk-237W / mk.

6. The vehicle thermal management system according to claim 4, characterized in that: The vehicle-mounted refrigerator further includes a fan, which is used to accelerate the airflow in the article storage space.

7. The vehicle thermal management system according to claim 6, characterized in that: An air outlet is formed on the heat exchange shell, and the fan is arranged at the air outlet.

8. The vehicle thermal management system according to claim 4, characterized in that: The vehicle refrigerator further includes a heating element, wherein the heating element includes a heating film, and the heating film covers the outer surface of the heat exchange shell and / or the side of the heat exchange tube facing away from the heat exchange shell; or The vehicle refrigerator further includes a cooling element, which includes a semiconductor refrigeration fin. The semiconductor refrigeration fin covers the outer surface of the heat exchange shell and / or the side of the heat exchange tube facing away from the heat exchange shell.

9. The vehicle thermal management system according to claim 1, characterized in that: The vehicle thermal management system further includes a first heat exchanger and a plurality of refrigerator expansion valves, wherein the plurality of refrigerator expansion valves correspond one to one with the plurality of refrigerator heat exchangers; The outlet of the compressor is connected to the inlet of multiple refrigerator heat exchangers, the outlet of each refrigerator heat exchanger is connected to the inlet of the corresponding refrigerator expansion valve, the outlets of multiple refrigerator expansion valves are connected to the inlet of the first heat exchanger, and the outlet of the first heat exchanger is connected to the inlet of the compressor.

10. The vehicle thermal management system according to any one of claims 1 to 8, characterized in that: The vehicle thermal management system further includes an air conditioning system including the compressor.

11. The vehicle thermal management system according to claim 10, characterized in that: The air-conditioning system also includes a second heat exchanger and an air-conditioning expansion valve. The second heat exchanger is connected in parallel with multiple refrigerator heat exchangers. The outlet of the compressor is also connected to the inlet of the second heat exchanger via the air-conditioning expansion valve, and the outlet of the second heat exchanger is connected to the inlet of the compressor.

12. The vehicle thermal management system according to claim 11, characterized in that: The vehicle thermal management system further includes a pressure regulating structure, wherein the inlet of the pressure regulating structure is connected to the outlet of the second heat exchanger, and the outlet of the pressure regulating structure is connected to the inlet of the compressor; The pressure regulating structure has a first conduction state. In the first conduction state, the refrigerant pressure on the inlet side of the pressure regulating structure is different from the refrigerant pressure on the outlet side of the pressure regulating structure, so that the refrigerant pressure in the second heat exchanger can be different from the refrigerant pressure in the refrigerator heat exchanger.

13. The vehicle thermal management system according to claim 12, characterized in that: In the first conduction state, the refrigerant pressure at the inlet side of the pressure regulating structure is greater than the refrigerant pressure at the outlet side of the pressure regulating structure, so that the refrigerant pressure in the second heat exchanger is greater than the refrigerant pressure in the refrigerator heat exchanger.

14. The vehicle thermal management system according to claim 12, wherein: The pressure regulating structure further has a second conducting state, in which the refrigerant pressure at the inlet side of the pressure regulating structure is substantially the same as the refrigerant pressure at the outlet side of the pressure regulating structure.

15. The vehicle thermal management system according to claim 12, characterized in that: The pressure regulating structure is a throttle valve.

16. The vehicle thermal management system according to claim 12, wherein: In the first conducting state, an absolute value of a difference between a refrigerant pressure at an inlet side of the pressure regulating structure and a refrigerant pressure at an outlet side of the pressure regulating structure is 150 kPa-200 kPa.

17. The vehicle thermal management system according to claim 12, wherein: The air conditioning system further includes a first temperature and pressure sensor, the first temperature and pressure sensor being located downstream of the second heat exchanger and upstream of the pressure regulating structure; The vehicle thermal management system further includes a second temperature and pressure sensor, and each refrigerator heat exchanger is provided with the second temperature and pressure sensor downstream; The vehicle thermal management system further includes a controller, and the first temperature and pressure sensor, the second temperature and pressure sensor, and the pressure regulating structure are all electrically connected to the controller.

18. A vehicle, characterized in that: A vehicle thermal management system comprising the vehicle thermal management system according to any one of claims 1-17.

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