Vehicle-mounted thermal management system and vehicle

Abstract

The embodiment of the utility model provides a vehicle-mounted thermal management system and a vehicle, and relates to the technical field of vehicle-mounted thermal management. The vehicle comprises the vehicle-mounted heat management system, and the vehicle-mounted heat management system comprises a battery heat exchange system, an air conditioner heat exchange system and a second heat exchange system. The battery heat exchange system comprises a battery heat exchange loop and a battery heat exchange device which are connected with each other, the battery heat exchange loop passes through the power battery and is used for exchanging heat with the power battery, the air conditioner heat exchange system comprises an air conditioner heat exchange loop, a heat exchange branch and an air conditioner heat exchange device which are connected with each other, and the two ends of the heat exchange branch are both communicated with the air conditioner heat exchange loop; and the heat exchange loop is used for heat exchange connection with the battery heat exchange loop and / or heat exchange of a passenger compartment. And the second heat exchange system comprises a water-cooling heat exchange system, and the water-cooling heat exchange system is used for being in heat exchange connection with a battery heat exchange loop. Due to the arrangement of the water-cooling heat exchange system, cooling of the power battery can be guaranteed in extremely cold weather, and the cooling effect of the battery and the passenger compartment can be guaranteed in ultra-high temperature weather.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted thermal management, and in particular to a vehicle-mounted thermal management system and a vehicle. Background Art

[0002] The Vehicle Thermal Management System (VTMS) is a crucial component of modern vehicles, particularly electric and hybrid vehicles. It manages the temperatures of key components to ensure they operate within their optimal operating range. Designed to improve vehicle efficiency, safety, and comfort, the VTMS primarily cools the power battery or passenger compartment through a compressor, evaporator, condenser, and expansion valve.

[0003] In extremely cold weather, the compressors in some existing vehicle thermal management systems are prone to failure to start, and the power battery cannot be cooled when it needs to be cooled. In extremely high temperature weather, when both the battery and the passenger compartment need to be cooled at the same time, the cooling demand is very large, and the cooling effect of structures such as compressors alone is insufficient. Utility Model Content

[0004] The purpose of the present invention is to provide a vehicle-mounted thermal management system that can ensure cooling of the power battery in extremely cold weather and can ensure cooling effect on the battery and passenger compartment in extremely high temperature weather.

[0005] The embodiment of the present utility model can be implemented as follows:

[0006] In a first aspect, the present invention provides a vehicle thermal management system, comprising:

[0007] A battery heat exchange system, comprising a battery heat exchange circuit and a battery heat exchange device connected to each other, wherein the battery heat exchange circuit passes through the power battery for heat exchange with the power battery;

[0008] An air conditioning heat exchange system, comprising a connected air conditioning heat exchange circuit, a heat exchange branch, and an air conditioning heat exchange device. Both ends of the heat exchange branch are connected to the air conditioning heat exchange circuit. The heat exchange branch is provided with a valve. The heat exchange branch is used to exchange heat with the passenger compartment. The air conditioning heat exchange circuit is used to exchange heat with the battery heat exchange circuit and / or exchange heat with the passenger compartment.

[0009] The water-cooled heat exchange system is used to connect to the battery heat exchange circuit for heat exchange.

[0010] In an optional embodiment, the air conditioning heat exchange device includes a compressor, a condenser, a first expansion valve and a first heat exchanger which are sequentially arranged on the air conditioning heat exchange circuit, and the air conditioning heat exchange circuit is connected to the battery heat exchange circuit through the first heat exchanger.

[0011] In an optional embodiment, the air conditioning heat exchange device also includes a second expansion valve and an evaporator arranged on the heat exchange branch, the outlet of the evaporator is close to the compressor relative to the second expansion valve, the inlet of the second expansion valve is close to the condenser relative to the evaporator, the end of the heat exchange branch close to the second expansion valve is located between the condenser and the first expansion valve, and the end of the heat exchange branch close to the evaporator is located between the first heat exchanger and the compressor.

[0012] In an optional embodiment, the first expansion valve is an electronic expansion valve, and / or the second expansion valve is an electromagnetic expansion valve.

[0013] In an optional embodiment, the water-cooled heat exchange system includes a water-cooled heat exchange circuit and a first circulating water pump, a first heat exchanger and a second heat exchanger installed in sequence on the water-cooled heat exchange circuit. The first heat exchanger is used to heat or cool the liquid in the water-cooled heat exchange circuit, and the water-cooled heat exchange circuit is connected to the battery heat exchange circuit through the second heat exchanger.

[0014] In an optional embodiment, the first heat exchanger is a radiator, and the heat exchanger is used to cool the liquid in the water-cooled heat exchange circuit.

[0015] In an optional embodiment, a first temperature sensor and a first regulating valve are provided on the water-cooled heat exchange circuit, and the first temperature sensor and the first regulating valve are both located between the inlets of the first heat exchanger and the second heat exchanger.

[0016] In an optional embodiment, the battery heat exchange device includes a second circulating water pump and a second heat exchanger sequentially arranged in the battery heat exchange loop, and the second heat exchanger is used to heat and / or cool the liquid in the battery heat exchange loop.

[0017] In an optional embodiment, the second heat exchanger is a heating device, which is used to heat the liquid in the battery heat exchange circuit;

[0018] And / or a second temperature sensor and a second regulating valve are provided on the battery heat exchange circuit, and the second temperature sensor and the second regulating valve are both located between the second heat exchanger and the inlet of the second circulating water pump.

[0019] In a second aspect, the present invention further provides a vehicle comprising the above-mentioned vehicle-mounted thermal management system.

[0020] An embodiment of the present invention provides an on-vehicle thermal management system comprising a battery heat exchange system, an air conditioning heat exchange system, and a second heat exchange system. The battery heat exchange system comprises a connected battery heat exchange circuit and a battery heat exchange device, wherein the battery heat exchange circuit passes through the power battery for heat exchange with the power battery. The air conditioning heat exchange system comprises a connected air conditioning heat exchange circuit, a heat exchange branch, and an air conditioning heat exchange device, wherein both ends of the heat exchange branch are connected to the air conditioning heat exchange circuit, and the heat exchange branch is provided with a valve. The heat exchange branch is used for heat exchange with the passenger compartment, and the heat exchange circuit is used for heat exchange connection with the battery heat exchange circuit and / or heat exchange with the passenger compartment. The second heat exchange system comprises a water-cooled heat exchange system, which is used for heat exchange connection with the battery heat exchange circuit. Due to the setting of the water-cooling heat exchange system, it can ensure that the power battery can be cooled even in extremely cold conditions. Similarly, in ultra-high temperature conditions and when the power battery and the passenger compartment need to be cooled at the same time, the water-cooling heat exchange system also exchanges heat and cools the battery heat exchange system. Therefore, the air-conditioning heat exchange system can provide more cold capacity to the passenger compartment, thereby ensuring the cooling effect of the passenger compartment and the power battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the vehicle thermal management system provided in this embodiment.

[0023] Icons: 1- On-board thermal management system; 100- Battery heat exchange system; 110- Battery heat exchange circuit; 120- Heating device; 130- Second circulating water pump; 200- Air conditioning heat exchange system; 210- Air conditioning heat exchange circuit; 220- Heat exchange branch; 230- Compressor; 240- Condenser; 250- Evaporator; 260- First heat exchanger; 270- First expansion valve; 280- Second expansion valve; 300- Water cooling heat exchange system; 310- Water cooling heat exchange circuit; 320- First circulating water pump; 330- Radiator; 340- Second heat exchanger; 2- Power battery. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0029] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0030] The specific structure of a vehicle thermal management system provided by an embodiment of the utility model and the corresponding technical effects brought about by it are described in detail below with reference to the patent drawings.

[0031] Please refer to Figure 1 An embodiment of the present invention provides a vehicle thermal management system 1 including a battery heat exchange system 100 , an air conditioning heat exchange system 200 and a water cooling heat exchange system 300 .

[0032] The battery heat exchange system 100 includes a connected battery heat exchange circuit 110 and a battery heat exchange device. The battery heat exchange circuit 110 passes through the power battery 2 for heat exchange with the power battery 2. The air conditioning heat exchange system 200 includes a connected air conditioning heat exchange circuit 210, a heat exchange branch 220, and an air conditioning heat exchange device. Both ends of the heat exchange branch 220 are connected to the air conditioning heat exchange circuit 210. The heat exchange branch 220 is equipped with a valve. The heat exchange branch 220 is used to exchange heat with the passenger compartment. The air conditioning heat exchange circuit 210 is used for heat exchange connection with the battery heat exchange circuit 110 and / or for heat exchange with the passenger compartment. The water cooling heat exchange system 300 is used for heat exchange connection with the battery heat exchange circuit 110.

[0033] It is understandable that some existing vehicle management systems only include the air conditioning and heat exchange system 200, which includes a compressor 230, a condenser 240, an evaporator 250, and an expansion valve. It is understandable that some existing vehicle management systems primarily use the cooling energy generated by the compressor 230, condenser 240, evaporator 250, and expansion valve to cool the power battery 2 passing through the battery heat exchange circuit 110 or to cool the passenger compartment. In extremely cold conditions (ambient temperature equal to or below 10°C), the compressor 230 is prone to starting failures. If the compressor 230 fails to start successfully in extremely cold conditions and the power battery 2 needs to be cooled, cooling of the power battery 2 cannot be completed. In extremely high temperatures (ambient temperature greater than or equal to 45°C), when both the power battery 2 and the passenger compartment need to be cooled, the cooling energy generated by the compressor 230, condenser 240, evaporator 250, and expansion valve is insufficient, resulting in poor cooling of the passenger compartment and the power battery 2.

[0034] In this embodiment, since a second heat exchange system is provided, the second heat exchange system includes a water-cooled heat exchange system 300, which is used to be connected to the battery heat exchange circuit 110 for heat exchange. It should be noted that heat exchange can be understood as including cooling heat exchange and heating heat exchange. The water-cooled heat exchange system 300 can be a water-cooled heat exchange system 300 in the vehicle, that is, the water-cooled heat exchange system 300 in the vehicle can be incorporated into the vehicle-mounted thermal management system 1, or the water-cooled heat exchange system 300 can also be a separately provided water-cooled heat exchange system 300. Through the provision of the water-cooled heat exchange system 300, even under extremely cold conditions, when the compressor 230 cannot work normally, the water-cooled heat exchange system 300 can be used. 0 exchanges heat with the power battery 2 passing through the battery heat exchange loop 110 to cool down the power battery 2, so as to ensure that the power battery 2 can be cooled down even in extremely cold conditions. Similarly, under ultra-high temperature conditions and when the power battery 2 and the passenger compartment need to be cooled down at the same time, the water-cooling heat exchange system can be started to exchange heat with the battery heat exchange loop 110 passing through the power battery 2, and the air-conditioning heat exchange loop 210 of the air-conditioning heat exchange system 200 can also exchange heat with the passenger compartment and the battery heat exchange loop 110 at the same time. Since the water-cooling heat exchange system 300 also exchanges heat with the battery heat exchange system 100 to cool down the battery heat exchange system 100, the air-conditioning heat exchange system 200 can provide more cold capacity to the passenger compartment, thereby ensuring the cooling effect of the passenger compartment and the power battery 2.

[0035] In detail, in this embodiment, the air conditioning heat exchange device includes a compressor 230, a condenser 240, a first expansion valve 270 and a first heat exchanger 260, which are sequentially arranged on the air conditioning heat exchange circuit 210. The air conditioning heat exchange circuit 210 is connected to the battery heat exchange circuit 110 for heat exchange through the first heat exchanger 260.

[0036] The air conditioning heat exchange device also includes a second expansion valve 280 and an evaporator 250 arranged on the heat exchange branch 220. The outlet of the evaporator 250 is close to the compressor 230 relative to the second expansion valve 280, and the inlet of the second expansion valve 280 is close to the condenser 240 relative to the evaporator 250. The end of the heat exchange branch 220 close to the second expansion valve 280 is located between the condenser 240 and the first expansion valve 270, and the end of the heat exchange branch 220 close to the evaporator 250 is located between the first heat exchanger 260 and the compressor 230.

[0037] It should be noted that the valve on the heat exchange branch 220 refers to the second expansion valve 280 mentioned above.

[0038] In this embodiment, the first expansion valve 270 is an electronic expansion valve, and the second expansion valve 280 is an electromagnetic expansion valve. Of course, in other embodiments, the first expansion valve 270 can also be other types of expansion valves, and the second expansion valve 280 can also be other types of expansion valves.

[0039] In this embodiment, the water-cooling heat exchange system 300 includes a water-cooling heat exchange circuit 310 and a first circulating water pump 320, a first heat exchanger and a second heat exchanger 340 installed in sequence on the water-cooling heat exchange circuit 310. The first heat exchanger is connected to the battery heat exchange circuit 110 for heat exchange through the second heat exchanger 340.

[0040] The first heat exchanger is a radiator 330, which is used to cool the liquid in the water-cooled heat exchange loop 310. It should be noted that the liquid in the water-cooled heat exchange loop 310 is cooling water, while the liquid in the air conditioning heat exchange loop 210 is refrigerant. The battery heat exchange loop 110 also contains cooling water.

[0041] The first circulating water pump 320 can drive the cooling water in the water-cooling heat exchange loop 310 to circulate.

[0042] In some optional embodiments, in order to ensure the heat exchange effect between the water-cooled heat exchange circuit 310 and the battery heat exchange circuit 110, the water-cooled heat exchange circuit 310 can also be connected to other heat exchange devices and other cooling devices to improve the cooling efficiency of the cooling water in the water-cooled heat exchange circuit 310.

[0043] Optionally, in some embodiments, the water-cooled heat exchange circuit 310 is provided with a first temperature sensor and a first regulating valve, both of which are located between the inlet of the first heat exchanger and the inlet of the second heat exchanger 340. The provision of the first temperature sensor can effectively detect the temperature of the cooling water at the outlet of the first heat exchanger, and by adjusting the opening of the first regulating valve, the water output is regulated, thereby regulating the heat exchange between the water-cooled heat exchange circuit 310 and the battery heat exchange circuit 110.

[0044] The battery heat exchange device includes a second circulating water pump 130 and a second heat exchanger which are sequentially arranged in the battery heat exchange loop 110 . The second heat exchanger is used to heat and / or cool the liquid in the battery heat exchange loop 110 .

[0045] In detail, in this embodiment, the second heat exchanger is a heating device 120 , which is used to heat the liquid in the battery heat exchange loop 110 . The heating device 120 may be a PTC heater or other types of heaters.

[0046] In some optional embodiments, a second temperature sensor and a second regulating valve are provided on the battery heat exchange circuit 110 , and the second temperature sensor and the second regulating valve are both located between the second heat exchanger and the inlet of the second circulating water pump 130 .

[0047] Similarly, the second temperature sensor can timely obtain the temperature of the cooling water between the second heat exchanger and the second circulating water pump 130, and the second regulating valve can adjust the heat exchange effect of the battery heat exchange circuit 110 on the power battery 2.

[0048] Workflow:

[0049] 1. When the vehicle equipped with the vehicle thermal management system 1 is at normal temperature, and the passenger compartment and the power battery 2 in the vehicle need to be cooled at the same time.

[0050] At this point, compressor 230 starts, the electromagnetic expansion valve and the electronic expansion valve open simultaneously, and the second circulating water pump 130 in the battery heat exchange system 100 starts. At this point, the first circulating water pump 320 is shut down, and the water-cooled heat exchange system 300 is not operating. In other words, the refrigerant in the air conditioning heat exchange system 200 passes through compressor 230 and then condenser 240. A portion of it then passes through the electronic expansion valve and first heat exchanger 260 before returning to compressor 230. The battery heat exchange circuit 110 exchanges heat with the air conditioning heat exchange system 200 through the first heat exchanger 260, and the cooling water in the battery heat exchange circuit 110 cools the power battery 2.

[0051] Another part of the refrigerant in the air conditioning heat exchange circuit 210 that passes through the condenser 240 will flow into the heat exchange branch 220, and return to the compressor 230 after passing through the electromagnetic expansion valve and the evaporator 250 in sequence. The evaporator 250 is used to cool the passenger compartment.

[0052] 2. When the vehicle equipped with the vehicle thermal management system 1 is at normal temperature, the passenger compartment in the vehicle needs to be cooled, and the power battery 2 does not need to be cooled.

[0053] At this point, compressor 230 starts, the electromagnetic expansion valve opens, the electronic expansion valve closes, and the second circulating water pump 130 in battery heat exchange system 100 starts. Both first and second circulating water pumps 320 and 130 are shut down, and both water-cooled heat exchange system 300 and battery heat exchange system 100 are inoperative. In other words, the refrigerant in air conditioning heat exchange system 200 passes through compressor 230 and then condenser 240, flowing entirely into heat exchange branch 220. It then passes through the electromagnetic expansion valve and evaporator 250, returning to compressor 230. Evaporator 250 is used to cool the passenger compartment.

[0054] 3. When the vehicle equipped with the vehicle thermal management system 1 is at normal temperature, the power battery 2 in the vehicle needs to be cooled, and the passenger compartment does not need to be cooled.

[0055] At this time, the compressor 230 starts, the electromagnetic expansion valve closes, the electronic expansion valve opens, and the second circulating water pump 130 in the battery heat exchange system 100 starts. At this time, the first circulating water pump 320 is shut down, the second circulating water pump 130 is turned on, the water-cooled heat exchange system 300 is shut down, and the battery heat exchange system 100 is turned on. In other words, at this time, the refrigerant in the air conditioning heat exchange system 200 passes through the compressor 230 and then the condenser 240. The refrigerant does not flow into the heat exchange branch 220, and passes through the electronic expansion valve and the first heat exchanger 260 in sequence before returning to the compressor 230. The battery heat exchange circuit 110 passes through the first heat exchanger 260 and, in turn, the cooling water in the battery heat exchange circuit 110 flows and cools the power battery 2.

[0056] 4. When the vehicle equipped with the vehicle thermal management system 1 is at normal temperature and the power battery 2 in the vehicle needs to be heated.

[0057] In this embodiment, the compressor 230 is turned off, the heating device 120 within the battery heat exchange system 100 is activated, the second circulating water pump 130 is turned on, and both the first circulating water pump 320 and the radiator 330 are turned off. At this point, the heating device 120 is used to heat the cooling water within the battery heat exchange circuit 110, while the second circulating water pump 130 drives the heated water to circulate within the electromagnetic heat exchange circuit, thereby heating the power battery 2.

[0058] 5. When the vehicle equipped with the vehicle thermal management system 1 is in an extremely cold condition, the compressor 230 cannot be started and the power battery 2 needs to be cooled.

[0059] At this time, both the first circulating water pump 320 and the second circulating water pump 130 are started, and the radiator 330 is also started. At this time, the battery circulation loop exchanges heat with the water cooling heat exchange system 300 through the second heat exchanger 340, and then the cooling water in the battery heat exchange loop 110 flows and cools the power battery 2.

[0060] 6. When the vehicle equipped with the vehicle thermal management system 1 is in an extremely high temperature condition and the battery and the passenger compartment need to be cooled at the same time.

[0061] The compressor 230 , the battery expansion valve, the electronic expansion valve, the first circulating water pump 320 , the second circulating water pump 130 and the radiator 330 are turned on simultaneously.

[0062] That is to say, at this time, the refrigerant in the air-conditioning heat exchange system 200 passes through the compressor 230 and then the condenser 240, and then a part of it passes through the electronic expansion valve and the first heat exchanger 260 and then returns to the compressor 230. The battery heat exchange circuit 110 exchanges heat with the air-conditioning heat exchange system 200 through the first heat exchanger 260, and then the cooling water in the battery heat exchange circuit 110 cools the power battery 2.

[0063] At this time, the battery heat exchange circuit 110 can also exchange heat with the water cooling heat exchange system 300 through the second heat exchanger 340. Therefore, the water cooling heat exchange system 300 cools the cooling water in the battery heat exchange circuit 110 and indirectly cools the power battery 2.

[0064] The remaining refrigerant in air conditioning heat exchange circuit 210, which passes through condenser 240, flows into heat exchange branch 220, passes through the electromagnetic expansion valve and evaporator 250, and then returns to compressor 230. Evaporator 250 is used to cool the passenger compartment. At this time, the water-cooled heat exchange system 300 and air conditioning heat exchange system 200 are activated simultaneously, increasing the cooling capacity of the entire thermal management system, improving the cooling effect on the battery and passenger compartment, and preventing compressor 230 from shutting down due to excessive refrigerant pressure in air conditioning heat exchange system 200.

[0065] In summary, the embodiment of the present invention provides an on-vehicle thermal management system 1 including a battery heat exchange system 100, an air conditioning heat exchange system 200, and a second heat exchange system. The battery heat exchange system 100 includes a connected battery heat exchange circuit 110 and a battery heat exchange device. The battery heat exchange circuit 110 passes through the power battery 2 for heat exchange with the power battery 2. The air conditioning heat exchange system 200 includes a connected air conditioning heat exchange circuit 210, a heat exchange branch 220, and an air conditioning heat exchange device. Both ends of the heat exchange branch 220 are connected to the air conditioning heat exchange circuit 210. The heat exchange branch 220 is provided with a valve. The heat exchange branch 220 is used to exchange heat with the passenger compartment. The heat exchange circuit is used to heat exchange with the battery heat exchange circuit 110 and / or heat exchange with the passenger compartment. The second heat exchange system includes a water-cooled heat exchange system 300, which is used to heat exchange with the battery heat exchange circuit 110. Due to the setting of the water-cooling heat exchange system 300, it can ensure that the power battery 2 can be cooled even under extremely cold conditions. Similarly, under ultra-high temperature conditions and when the power battery 2 and the passenger compartment need to be cooled at the same time, since the water-cooling heat exchange system 300 also exchanges heat and cools the battery heat exchange system 100, the air-conditioning heat exchange system 200 can provide more cold capacity to the passenger compartment, thereby ensuring the cooling effect of the passenger compartment and the power battery 2.

[0066] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle thermal management system, characterized in that: include: A battery heat exchange system, the battery heat exchange system comprising a battery heat exchange circuit and a battery heat exchange device connected to each other, the battery heat exchange circuit passing through the power battery for exchanging heat with the power battery; an air conditioning heat exchange system, the air conditioning heat exchange system comprising a connected air conditioning heat exchange circuit, a heat exchange branch, and an air conditioning heat exchange device, wherein both ends of the heat exchange branch are in communication with the air conditioning heat exchange circuit, the heat exchange branch is provided with a valve, the heat exchange branch is used to exchange heat with the passenger compartment, and the air conditioning heat exchange circuit is used to exchange heat with the battery heat exchange circuit and / or with the passenger compartment; A water-cooled heat exchange system is used for heat exchange connection with the battery heat exchange circuit.

2. The vehicle thermal management system according to claim 1, characterized in that: The air conditioning heat exchange device includes a compressor, a condenser, a first expansion valve and a first heat exchanger which are sequentially arranged on the air conditioning heat exchange circuit. The air conditioning heat exchange circuit is connected to the battery heat exchange circuit through the first heat exchanger.

3. The vehicle thermal management system according to claim 2, characterized in that: The air-conditioning heat exchange device also includes a second expansion valve and an evaporator arranged on a heat exchange branch, the outlet of the evaporator is close to the compressor relative to the second expansion valve, and the inlet of the second expansion valve is close to the condenser relative to the evaporator. The end of the heat exchange branch close to the second expansion valve is located between the condenser and the first expansion valve, and the end of the heat exchange branch close to the evaporator is located between the first heat exchanger and the compressor.

4. The vehicle thermal management system according to claim 3, characterized in that: The first expansion valve is an electronic expansion valve, and / or the second expansion valve is an electromagnetic expansion valve.

5. The vehicle thermal management system according to claim 1, characterized in that: The water-cooling heat exchange system includes a water-cooling heat exchange circuit and a first circulating water pump, a first heat exchanger and a second heat exchanger installed in sequence on the water-cooling heat exchange circuit. The first heat exchanger is used to heat or cool the liquid in the water-cooling heat exchange circuit. The water-cooling heat exchange circuit is connected to the battery heat exchange circuit for heat exchange through the second heat exchanger.

6. The vehicle thermal management system according to claim 5, characterized in that: The first heat exchanger is a radiator, and the heat exchanger is used to cool the liquid in the water-cooled heat exchange circuit.

7. The vehicle thermal management system according to claim 5, characterized in that: The water-cooled heat exchange circuit is provided with a first temperature sensor and a first regulating valve, and the first temperature sensor and the first regulating valve are both located between the inlets of the first heat exchanger and the second heat exchanger.

8. The vehicle thermal management system according to claim 1, characterized in that : The battery heat exchange device includes a second circulating water pump and a second heat exchanger which are sequentially arranged in the battery heat exchange loop. The second heat exchanger is used to heat and / or cool the liquid in the battery heat exchange loop.

9. The vehicle thermal management system according to claim 8, characterized in that : The second heat exchanger is a heating device, which is used to heat the liquid in the battery heat exchange circuit; And / or a second temperature sensor and a second regulating valve are provided on the battery heat exchange circuit, and the second temperature sensor and the second regulating valve are both located between the second heat exchanger and the inlet of the second circulating water pump.

10. A vehicle, characterized in that: The vehicle thermal management system includes any one of claims 1 to 9.

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