Vehicle-mounted thermal management system and vehicle

Abstract

The invention provides a vehicle-mounted thermal management system and a vehicle, and belongs to the technical field of vehicle thermal management. The vehicle-mounted heat management system comprises a compressor, a refrigerant integration module, a heating ventilation air conditioner assembly, a liquid storage device, a cooling liquid integration module, a battery cooling module, a low-temperature cooling module and a cooling module. The compressor, the refrigerant integration module and the heating ventilation air conditioner assembly are sequentially and circularly connected, and the refrigerant integration module is connected with the cooling module. The liquid storage device is connected with the cooling liquid integration module, the battery cooling module, the low-temperature cooling module and the cooling module are respectively connected with the cooling liquid integration module, and the cooling liquid integration module is connected with the refrigerant integration module. The vehicle-mounted thermal management system has the advantages of being high in integration level, small in number of parts, low in cost, light in weight, capable of being flexibly arranged and capable of being applied and popularized to various different vehicle types.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle thermal management, and particularly relates to an in-vehicle thermal management system and a vehicle. Background Art

[0002] At present, most new energy vehicles adopt an indirect heat pump system to assist a high-pressure water heater to meet the heating function requirements of the whole vehicle. This results in a relatively complex system with many components. Moreover, there is a secondary heat exchange phenomenon in the indirect heat pump, which has problems of heat exchange loss and slow heating rate. Summary of the Invention

[0003] The present application provides an in-vehicle thermal management system and a vehicle, which can solve the problems of complex structure, heat exchange loss and slow heating rate existing in the related art.

[0004] The technical solutions are as follows:

[0005] On the one hand, an in-vehicle thermal management system is provided. The in-vehicle thermal management system includes: a compressor, a refrigerant integration module, a heating, ventilation, and air conditioning (HVAC) assembly, a liquid storage device, a coolant integration module, a battery cooling module, a low-temperature cooling module, and an external cooling module;

[0006] The compressor, the refrigerant integration module, and the HVAC assembly are connected in sequence in a cycle, and the refrigerant integration module is connected to the external cooling module;

[0007] The liquid storage device is connected to the coolant integration module, the battery cooling module, the low-temperature cooling module, and the external cooling module are respectively connected to the coolant integration module, and the coolant integration module is connected to the refrigerant integration module;

[0008] Wherein, the refrigerant integration module is used to adjust the flow direction of the refrigerant, the HVAC assembly is used to realize the refrigeration and heating functions of the passenger compartment, the battery cooling module is used to adjust the temperature of the in-vehicle battery pack, the low-temperature cooling module is used to adjust the temperature of electrical components, and the external cooling module is used for heat exchange between the refrigerant and the coolant and the outside air.

[0009] In some embodiments, the refrigerant integration module includes a refrigerant valve group, a gas-liquid separation tank, a first expansion valve, a second expansion valve, a third expansion valve, and a battery cooler;

[0010] The refrigerant valve group includes a first port, a second port, a third port, a fourth port, and a fifth port, and any two of the first port, the second port, the third port, the fourth port, and the fifth port can be mutually communicated;

[0011] The first port is connected to the high-pressure input port of the gas-liquid separator. The high-pressure output port of the gas-liquid separator is respectively connected to the first expansion valve, the second expansion valve, and the third expansion valve. The second expansion valve is connected to the refrigerant inlet of the battery cooler. The refrigerant outlet of the battery cooler is connected to the third port. The third port is connected to the low-pressure input port of the gas-liquid separator. The low-pressure output port of the gas-liquid separator is connected to the compressor inlet. The third expansion valve is connected to the fourth port;

[0012] The HVAC assembly includes a first condenser, a first evaporator, and a movable air damper. The movable air damper includes a first state and a second state. In the first state, the passenger compartment, the first evaporator, and the first condenser are connected in a cycle. In the second state, the passenger compartment and the first condenser are connected. The inlet of the first condenser is connected to the outlet of the compressor. The outlet of the first condenser is connected to the fifth port. The inlet of the first evaporator is connected to the first expansion valve. The outlet of the first evaporator is connected to the third port;

[0013] The cooling module includes a second condenser and a low-temperature heat exchanger. The inlet of the second condenser is connected to the second port. The outlet of the second condenser is connected to the fourth port;

[0014] The coolant integration module includes a coolant valve group, a first water pump, and a second water pump;

[0015] The coolant valve group includes a V1 port, a V2 port, a V3 port, a V4 port, a V5 port, a V6 port, and a V7 port. The V1 port is connected to the coolant inlet of the battery cooler. The V2 port is connected to one end of the battery cooling module. The V3 port is connected to the coolant outlet of the battery cooler. The V4 port is connected to the inlet of the second water pump. The outlet of the second water pump is connected to the other end of the battery cooling module. The V5 port is connected to one end of the low-temperature heat exchanger. The V7 port is connected to the other end of the low-temperature heat exchanger and the outlet of the first water pump. The V6 port is connected to one end of the low-temperature cooling module. The inlet of the first water pump is connected to the other end of the low-temperature cooling module;

[0016] The liquid storage device is respectively connected to the inlet of the first water pump and the inlet of the second water pump.

[0017] In some embodiments, the vehicle thermal management system includes an air-conditioning refrigeration mode, an air-conditioning refrigeration + battery forced cooling mode, and a battery forced cooling mode;

[0018] In the air-conditioning refrigeration mode, the compressor starts, the first expansion valve opens, the second expansion valve and the third expansion valve close, the first port and the fourth port are conducted, the second port and the fifth port are conducted, and the first water pump and the second water pump close;

[0019] In the air-conditioning refrigeration + battery forced cooling mode, the compressor starts, the first expansion valve and the second expansion valve open, the third expansion valve closes, the first port and the fourth port are conducted, the second port and the fifth port are conducted, the first water pump closes, the second water pump opens, the V1 port and the V2 port are conducted, and the V3 port and the V4 port are conducted;

[0020] In the battery forced cooling mode, the compressor starts, the second expansion valve opens, the first expansion valve and the third expansion valve close, the first port and the fourth port are conducted, the second port and the fifth port are conducted, the first water pump closes, the second water pump opens, the V1 port and the V2 port are conducted, and the V3 port and the V4 port are conducted.

[0021] In some embodiments, the vehicle-mounted thermal management system includes an air-conditioning refrigeration and dehumidification mode and an air-conditioning heat pump dehumidification mode;

[0022] In the air-conditioning refrigeration and dehumidification mode, the compressor starts, the first expansion valve opens, the second expansion valve and the third expansion valve close, the first port and the fourth port are conducted, the second port and the fifth port are conducted, the first water pump and the second water pump close, and the movable air door is in the first state;

[0023] In the air-conditioning heat pump dehumidification mode, the compressor starts, the first expansion valve opens, the second expansion valve and the third expansion valve close, the first port and the fifth port are conducted, the second port and the third port are conducted, the first water pump and the second water pump close, and the movable air door is in the first state.

[0024] In some embodiments, the vehicle-mounted thermal management system includes an air-conditioning heat pump heating mode, an air-conditioning heat pump heating + battery forced cooling mode, an air-conditioning triangular cycle heating mode, and an air-conditioning heat pump heating + hot gas bypass mode;

[0025] In the air-conditioning heat pump heating mode, the compressor starts, the third expansion valve opens, the first expansion valve and the second expansion valve close, the first port and the fifth port are conducted, the second port and the third port are conducted, the first water pump and the second water pump close, and the movable air door is in the second state;

[0026] In the air-conditioning heat pump heating + battery forced cooling mode, the compressor starts, the third expansion valve and the second expansion valve open, the first expansion valve closes, the first port and the fifth port are conducted, the second port and the third port are conducted, the first water pump and the second water pump close, and the movable air door is in the second state;

[0027] In the air-conditioning triangular cycle heating mode, the compressor starts, the second expansion valve opens, the first expansion valve and the third expansion valve close, the first port and the fifth port are conducted, the first water pump and the second water pump close, and the movable air door is in the second state.

[0028] In some embodiments, a fourth expansion valve is provided between the compressor exhaust port and the third port;

[0029] The vehicle-mounted thermal management system further includes an air-conditioning heat pump heating + hot gas bypass mode;

[0030] In the air-conditioning heat pump heating + hot gas bypass mode, the compressor starts, the third expansion valve and the fourth expansion valve open, the first expansion valve and the second expansion valve close, the first port and the fifth port are conducted, the second port and the third port are conducted, the first water pump and the second water pump close, and the movable air door is in the second state.

[0031] In some embodiments, the vehicle-mounted thermal management system includes an air-conditioning defrosting mode;

[0032] In the air-conditioning defrosting mode, the compressor starts, the second expansion valve opens, the first expansion valve and the third expansion valve close, the first port and the fourth port are conducted, the second port and the fifth port are conducted, the first water pump opens, the second water pump closes, the V1 port and the V7 port are conducted, and the V3 port and the V6 port are conducted.

[0033] In some embodiments, the vehicle-mounted thermal management system further includes a motor cooling mode, a battery temperature equalization mode, a battery heating mode, and a battery natural cooling mode;

[0034] In the motor cooling mode, the compressor closes, the first water pump opens, the second water pump closes, and the V5 port and the V6 port are conducted;

[0035] In the battery temperature equalization mode, the compressor closes, the second water pump opens, the first water pump closes, and the V2 port and the V4 port are conducted;

[0036] In the battery heating mode, the compressor is turned off, the first water pump and the second water pump are turned on, the V2 port and the V6 port are conducted, and the V4 port and the V7 port are conducted;

[0037] In the battery natural cooling mode, the compressor is turned off, the first water pump and the second water pump are turned on, the V2 port and the V6 port are conducted, and the V4 port and the V5 port are conducted.

[0038] In some embodiments, the vehicle thermal management system includes a motor waste heat recovery mode and a battery-motor waste heat recovery mode;

[0039] In the motor waste heat recovery mode, the first water pump is turned on, the second water pump is turned off, the V1 port and the V7 port are conducted, and the V3 port and the V6 port are conducted;

[0040] In the battery-motor waste heat recovery mode, the first water pump and the second water pump are turned on, the V1 port and the V2 port are conducted, the V3 port and the V6 port are conducted, and the V4 port and the V7 port are conducted.

[0041] On the other hand, a vehicle is provided, and the vehicle includes the vehicle thermal management system described in this application.

[0042] The beneficial effects brought by the technical solution provided in this application at least include:

[0043] The vehicle thermal management system of this application uses a compressor as the main cold source, and internally integrates a refrigerant integration module for circulating refrigerant and a coolant integration module for circulating coolant, meeting the different usage requirements for refrigerant and coolant during the vehicle's use process. It uses the refrigerant integration module to adjust the refrigerant flow direction to achieve cooling or heating of the HVAC assembly, uses the refrigerant integration module in cooperation with the coolant integration module to achieve cooling or heating of the battery cooling module, and thus realizes the temperature adjustment of the in-vehicle battery pack. It uses the refrigerant integration module in cooperation with the coolant integration module to achieve cooling or heating of the low-temperature cooling module, and thus realizes the temperature adjustment of in-vehicle electrical components. In addition, it can also use an external cooling module to air-cool the refrigerant and coolant in the system, which can meet the heating or cooling of the vehicle under various working conditions and different heat demand scenarios, has a high integration degree, few component parts, low cost, light weight, can achieve flexible layout, and can be popularized and applied to a variety of different vehicle models. Description of the Drawings

[0044] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0045] Figure 1 It is a schematic structural diagram of a vehicle-mounted thermal pipeline system provided by an embodiment of the present application;

[0046] Figure 2 It is a schematic structural diagram of a vehicle-mounted thermal pipeline system provided by another embodiment of the present application;

[0047] Figure 3 It is a schematic working diagram of the vehicle-mounted thermal pipeline system provided by an embodiment of the present application in the air-conditioning refrigeration mode;

[0048] Figure 4 It is a schematic working diagram of the vehicle-mounted thermal pipeline system provided by an embodiment of the present application in the air-conditioning refrigeration + battery forced cooling mode;

[0049] Figure 5 It is a schematic working diagram of the vehicle-mounted thermal pipeline system provided by an embodiment of the present application in the battery forced cooling mode;

[0050] Figure 6 It is a schematic working diagram of the vehicle-mounted thermal pipeline system provided by an embodiment of the present application in the air-conditioning refrigeration and dehumidification mode;

[0051] Figure 7 It is a schematic working diagram of the vehicle-mounted thermal pipeline system provided by an embodiment of the present application in the air-conditioning heat pump dehumidification mode;

[0052] Figure 8 It is a schematic working diagram of the vehicle-mounted thermal pipeline system provided by an embodiment of the present application in the air-conditioning heat pump heating mode;

[0053] Figure 9 It is a schematic working diagram of the vehicle-mounted thermal pipeline system provided by an embodiment of the present application in the air-conditioning heat pump heating + battery forced cooling mode;

[0054] Figure 10 It is a schematic working diagram of the vehicle-mounted thermal pipeline system provided by an embodiment of the present application in the air-conditioning triangular cycle heating mode;

[0055] Figure 11 It is a schematic structural diagram of a vehicle-mounted thermal pipeline system provided by another embodiment of the present application;

[0056] Figure 12 It is a schematic working diagram of the vehicle-mounted thermal pipeline system provided by an embodiment of the present application in the air-conditioning heat pump heating + hot gas bypass mode;

[0057] Figure 13 It is a schematic diagram of the operation of the vehicle-mounted heat pipeline system provided by the embodiment of the present application in the air-conditioning de-icing mode;

[0058] Figure 14 It is a schematic diagram of the operation of the vehicle-mounted heat pipeline system provided by the embodiment of the present application in the motor cooling mode;

[0059] Figure 15 It is a schematic diagram of the operation of the vehicle-mounted heat pipeline system provided by the embodiment of the present application in the battery temperature equalization mode;

[0060] Figure 16 It is a schematic diagram of the operation of the vehicle-mounted heat pipeline system provided by the embodiment of the present application in the battery heating mode;

[0061] Figure 17 It is a schematic diagram of the operation of the vehicle-mounted heat pipeline system provided by the embodiment of the present application in the battery natural cooling mode;

[0062] Figure 18 It is a schematic diagram of the operation of the vehicle-mounted heat pipeline system provided by the embodiment of the present application in the motor waste heat recovery mode;

[0063] Figure 19 It is a schematic diagram of the operation of the vehicle-mounted heat pipeline system provided by the embodiment of the present application in the battery and motor waste heat recovery mode.

[0064] The reference numerals in the figure are respectively represented as:

[0065] 1. Compressor;

[0066] 2. Refrigerant integration module;

[0067] 21. Refrigerant valve group; 211. First port; 212. Second port; 213. Third port; 214. Fourth port; 215. Fifth port; 22. Gas-liquid separation tank; 23. First expansion valve; 24. Second expansion valve; 25. Third expansion valve; 26. Battery cooler; 27. Fourth expansion valve;

[0068] 3. Heating, ventilation and air conditioning assembly;

[0069] 31. First condenser; 32. First evaporator;

[0070] 4. Liquid storage device;

[0071] 5. Coolant integration module;

[0072] 51. Coolant valve group; 52. First water pump; 53. Second water pump;

[0073] 6. Battery cooling module;

[0074] 7. Low-temperature cooling module;

[0075] 8. External cooling module;

[0076] 81. Second condenser; 82. Low-temperature heat exchanger. Detailed implementation mode

[0077] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation modes described in the following exemplary embodiments do not represent all implementation modes consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0078] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the Figure 1 orientation or positional relationship shown, 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 should not be construed as a limitation of the present application.

[0079] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meaning as commonly understood by those of ordinary skill in the art.

[0080] To make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0081] On the one hand, as shown in Figure 1 this embodiment provides a vehicle thermal management system, which includes: a compressor 1, a refrigerant integration module 2, a heating, ventilation and air conditioning assembly 3, a liquid storage device 4, a coolant integration module 5, a battery cooling module 6, a low-temperature cooling module 7, and an external cooling module 8.

[0082] The compressor 1, the refrigerant integration module 2, and the heating, ventilation and air conditioning assembly 3 are sequentially connected in a cycle, and the refrigerant integration module 2 is connected to the cooling module.

[0083] The liquid storage device 4 is connected to the coolant integration module 5, the battery cooling module 6, the low-temperature cooling module 7, and the external cooling module 8 are respectively connected to the coolant integration module 5, and the coolant integration module 5 is connected to the refrigerant integration module 2.

[0084] Among them, the refrigerant integration module 2 is used to regulate the flow direction of the refrigerant, the heating, ventilation, and air conditioning (HVAC) assembly 3 is used to realize the refrigeration and heating functions of the passenger compartment, the battery cooling module 6 is used to regulate the temperature of the vehicle-mounted battery pack, the low-temperature cooling module 7 is used to regulate the temperature of electrical components, and the external cooling module 8 is used for heat exchange between the refrigerant and the coolant and the outside air.

[0085] For the vehicle thermal management system of this embodiment, the compressor 1 is used as the main cold source, and the refrigerant integration module 2 for circulating the refrigerant and the coolant integration module 5 for circulating the coolant are integrated internally to meet the different usage requirements of the refrigerant and the coolant during vehicle use. The refrigerant integration module 2 is used to regulate the flow direction of the refrigerant to realize cooling or heating of the HVAC assembly 3. The refrigerant integration module 2 cooperates with the coolant integration module 5 to realize cooling or heating of the battery cooling module 6, and further realizes the temperature regulation of the vehicle-mounted battery pack. The refrigerant integration module 2 cooperates with the coolant integration module 5 to realize cooling or heating of the low-temperature cooling module 7, and further realizes the temperature regulation of vehicle-mounted electrical components. In addition, the external cooling module 8 can be used to air-cool the refrigerant and the coolant in the system, which can meet the heating or cooling requirements of the vehicle under various working conditions and different heat demand scenarios, has a high degree of integration, fewer components, low cost, light weight, can be flexibly arranged, and can be popularized and applied to a variety of different vehicle models.

[0086] Combined Figure 2 As shown, in some embodiments, the refrigerant integration module 2 includes a refrigerant valve group 21, a gas-liquid separation tank 22, a first expansion valve 23, a second expansion valve 24, a third expansion valve 25, and a battery cooler 26.

[0087] The refrigerant valve group 21 includes a first port 211, a second port 212, a third port 213, a fourth port 214, and a fifth port 215, and any two of the first port 211, the second port 212, the third port 213, the fourth port 214, and the fifth port 215 can be communicated with each other.

[0088] The first port 211 is connected to the high-pressure input port of the gas-liquid separation tank 22. The high-pressure output port of the gas-liquid separation tank 22 is respectively connected to the first expansion valve 23, the second expansion valve 24, and the third expansion valve 25. The second expansion valve 24 is connected to the refrigerant inlet of the battery cooler 26. The refrigerant outlet of the battery cooler 26 is connected to the third port 213. The third port 213 is connected to the low-pressure input port of the gas-liquid separation tank 22. The low-pressure output port of the gas-liquid separation tank 22 is connected to the inlet of the compressor 1. The third expansion valve 25 is connected to the fourth port 214.

[0089] The HVAC assembly 3 includes a first condenser 31, a first evaporator 32, and a movable air damper. The movable air damper has a first state and a second state. In the first state, the passenger compartment, the first evaporator 32, and the first condenser 31 are in a circulating connection. In the second state, the passenger compartment is connected to the first condenser 31. The inlet of the first condenser 31 is connected to the outlet of the compressor 1, the outlet of the first condenser 31 is connected to the fifth port 215, the inlet of the first evaporator 32 is connected to the first expansion valve 23, and the outlet of the first evaporator 32 is connected to the third port 213.

[0090] The cooling module includes a second condenser 81 and a low-temperature heat exchanger 82. The inlet of the second condenser 81 is connected to the second port 212, and the outlet of the second condenser 81 is connected to the fourth port 214.

[0091] The coolant integration module 5 includes a coolant valve group 51, a first water pump 52, and a second water pump 53.

[0092] The coolant valve group 51 includes a V1 port, a V2 port, a V3 port, a V4 port, a V5 port, a V6 port, and a V7 port. The V1 port is connected to the coolant inlet of the battery cooler 26, the V2 port is connected to one end of the battery cooling module 6, the V3 port is connected to the coolant outlet of the battery cooler 26, the V4 port is connected to the inlet of the second water pump 53, the outlet of the second water pump 53 is connected to the other end of the battery cooling module 6, the V5 port is connected to one end of the low-temperature heat exchanger 82, the V7 port is connected to the other end of the low-temperature heat exchanger 82 and the outlet of the first water pump 52, the V6 port is connected to one end of the low-temperature cooling module, and the inlet of the first water pump 52 is connected to the other end of the low-temperature cooling module.

[0093] The liquid storage device 4 is respectively connected to the inlet of the first water pump 52 and the inlet of the second water pump 53.

[0094] Through the above arrangement, the vehicle thermal management system can meet the different usage requirements of the refrigerant and coolant during vehicle use. The refrigerant integration module 2 is used to adjust the refrigerant flow direction to achieve cooling or heating of the HVAC assembly 3. The refrigerant integration module 2 cooperates with the coolant integration module 5 to achieve cooling or heating of the battery cooling module 6, and further achieve temperature regulation of the vehicle battery pack. The refrigerant integration module 2 cooperates with the coolant integration module 5 to achieve cooling or heating of the low-temperature cooling module 7, and further achieve temperature regulation of the vehicle electrical components. In addition, the external cooling module 8 can be used to air-cool the refrigerant and coolant in the system.

[0095] In some embodiments, the vehicle thermal management system includes an air-conditioning refrigeration mode, an air-conditioning refrigeration + battery forced cooling mode, and a battery forced cooling mode.

[0096] In the air-conditioning refrigeration mode, refer to Figure 3As shown, the compressor 1 is started, the first expansion valve 23 is opened, the second expansion valve 24 and the third expansion valve 25 are closed, the first port 211 and the fourth port 214 are connected, the second port 212 and the fifth port 215 are connected, and the first water pump 52 and the second water pump 53 are closed.

[0097] The controller sends a command to start the compressor 1. The high-temperature and high-pressure refrigerant gas flows from the exhaust port of the compressor 1 through the first condenser 31, enters from the fifth port 215 and exits from the second port 212 through the regulation of the refrigerant valve group 21, and is cooled by the outside air in the second condenser 81 to become a medium-temperature and high-pressure refrigerant liquid. Then it enters from the fourth port 214 of the refrigerant valve group 21 and exits from the first port 211, flows through the high-pressure input port of the gas-liquid separation tank 22 to reach the first expansion valve 23, and after throttling and reducing the pressure of the first expansion valve 23, enters the first evaporator 32. The refrigerant liquid vaporizes in large quantities under low pressure, and absorbs the heat of the air inside the passenger compartment through the first evaporator 32, achieving the effect of cooling and cooling the vehicle environment. The evaporated refrigerant gas then flows through the low-pressure input port and low-pressure output port of the gas-liquid separation tank 22, returns to the air inlet of the compressor 1, and repeats the refrigeration cycle.

[0098] In air conditioning cooling + battery forced cooling mode, refer to Figure 4 As shown, the compressor 1 is started, the first expansion valve 23 and the second expansion valve 24 are opened, the third expansion valve 25 is closed, the first port 211 and the fourth port 214 are connected, the second port 212 and the fifth port 215 are connected, the first water pump 52 is turned off, the second water pump 53 is turned on, the V1 port and the V2 port are connected, and the V3 port and the V4 port are connected.

[0099] On the basis of the air conditioning cooling mode, the second expansion valve 24 is opened, and the diverted refrigerant is throttled and depressurized, and then flows into the battery cooler 26 to evaporate and absorb heat, thereby reducing the temperature of the coolant flowing into the battery cooler 26, and then returns to the air inlet of the compressor 1. The second water pump 53 is turned on, driving the coolant in the battery water circuit to enter from the V2 port of the coolant valve group 51 and exit from the V1 port, flow through the battery cooler 26, and flow out after being cooled by the refrigerant, and enter from the V3 port of the coolant valve group 51 and exit from the V4 port, completing the cooling cycle of the coolant for the battery cooling module.

[0100] In the battery forced cooling mode, see Figure 5 As shown, the compressor 1 is started, the second expansion valve 24 is opened, the first expansion valve 23 and the third expansion valve 25 are closed, the first port 211 and the fourth port 214 are connected, the second port 212 and the fifth port 215 are connected, the first water pump 52 is turned off, the second water pump 53 is turned on, the V1 port and the V2 port are connected, and the V3 port and the V4 port are connected.

[0101] On the basis of the air conditioning cooling mode, the second expansion valve 24 is opened and the first expansion valve 23 is closed. After all the refrigerant passes through the second expansion valve 24 for throttling and pressure reduction, it flows into the battery cooler 26 to evaporate and absorb heat, lower the coolant temperature, and then returns to the air inlet of the compressor 1. The second water pump 53 is turned on, driving the coolant in the battery water circuit to enter from the V2 port of the coolant valve group 51 and exit from the V1 port, flow through the battery cooler 26, and flow out after being cooled by the refrigerant, and enter from the V3 port of the coolant valve group 51 and exit from the V4 port, completing the cooling cycle of the coolant on the battery cooling module.

[0102] In some embodiments, the vehicle thermal management system includes an air conditioning cooling and dehumidification mode and an air conditioning heat pump dehumidification mode.

[0103] In the air conditioning cooling and dehumidification mode, refer to Figure 6 As shown, the compressor 1 is started, the first expansion valve 23 is opened, the second expansion valve 24 and the third expansion valve 25 are closed, the first port 211 and the fourth port 214 are connected, the second port 212 and the fifth port 215 are connected, the first water pump 52 and the second water pump 53 are closed, and the active damper is in the first state.

[0104] The controller issues a command to adjust the movable damper based on the air conditioning cooling mode, so that the air cooled and dehumidified by the first evaporator 32 is heated by the first condenser 31 to dry the air before being blown into the vehicle to achieve the dehumidification effect.

[0105] In the air conditioning heat pump dehumidification mode, refer to Figure 7 As shown, the compressor 1 is started, the first expansion valve 23 and the third expansion valve 25 are opened, the second expansion valve 24 is closed, the first port 211 and the fifth port 215 are connected, the second port 212 and the third port 213 are connected, the first water pump 52 and the second water pump 53 are closed, and the active damper is in the first state.

[0106] The controller issues a command to start the compressor 1, and the high-temperature and high-pressure refrigerant gas flows from the exhaust port of the compressor 1 through the first condenser 31, where it is cooled by the air inside the passenger compartment to become a medium-temperature and high-pressure refrigerant liquid. Then, it enters from the fifth port 215 and exits from the first port 211 through the regulation of the refrigerant valve group 21, flows through the high-pressure input port of the gas-liquid separation tank 22, and is divided into the first expansion valve 23 and the third expansion valve 25. After throttling and reducing the pressure of the first expansion valve 23 and the third expansion valve 25, it evaporates and absorbs heat in the first evaporator 32 and the second condenser 81. The refrigerant gas in the evaporative condenser enters from the second port 212 of the refrigerant valve group 21 and exits from the third port 213. After merging with the refrigerant gas from the first evaporator 32 of the HVAC assembly 3, it flows through the low-pressure input port and the low-pressure output port of the gas-liquid separation tank 22, and returns to the air inlet of the compressor 1, repeating the heat pump cycle.

[0107] In some embodiments, the vehicle thermal management system includes an air-conditioning heat pump heating mode, an air-conditioning heat pump heating + battery forced cooling mode, an air-conditioning triangular circulation heating mode, and an air-conditioning heat pump heating + hot gas bypass mode.

[0108] In the air-conditioning heat pump heating mode, refer to Figure 8 As shown, the compressor 1 is started, the third expansion valve 25 is opened, the first expansion valve 23 and the second expansion valve 24 are closed, the first port 211 and the fifth port 215 are conducted, the second port 212 and the third port 213 are conducted, the first water pump 52 and the second water pump 53 are closed, and the movable air damper is in the second state.

[0109] The controller issues an instruction to start the compressor 1. The high-temperature and high-pressure refrigerant gas flows out from the exhaust port of the compressor 1, passes through the first condenser 31, and is cooled by the internal air of the passenger compartment into a medium-temperature and high-pressure refrigerant liquid. Then, through the regulation of the refrigerant valve group 21, it enters from the fifth port 215 and exits from the first port 211. After flowing through the high-pressure input port of the gas-liquid separation tank 22, it flows to the third expansion valve 25. After throttling and pressure reduction by the third expansion valve 25, it evaporates and absorbs heat in the second condenser 81. The evaporated refrigerant gas enters from the second port 212 of the refrigerant valve group 21 and exits from the third port 213, flows through the low-pressure input port and the low-pressure output port of the gas-liquid separation tank 22, and returns to the intake port of the compressor 1 to repeat the heat pump cycle.

[0110] In the air-conditioning heat pump heating + battery forced cooling mode, refer to Figure 9 As shown, the compressor 1 is started, the third expansion valve 25 and the second expansion valve 24 are opened, the first expansion valve 23 is closed, the first port 211 and the fifth port 215 are conducted, the second port 212 and the third port 213 are conducted, the first water pump 52 and the second water pump 53 are closed, and the movable air damper is in the second state.

[0111] On the basis of the heat pump mode operation, the second expansion valve 24 is opened, and the refrigerant liquid flowing out from the high-pressure end of the gas-liquid separation tank 22 is shunted through the third expansion valve 25 and the second expansion valve 24 into the second condenser 81 and the battery cooler 26, and after throttling and pressure reduction, the refrigerant evaporates and absorbs heat in these two heat exchangers. The evaporated refrigerant gas flows through the low-pressure input port and the low-pressure output port of the gas-liquid separation tank 22 and returns to the intake port of the compressor 1 to repeat the heat pump cycle.

[0112] At this time, the second water pump 53 is turned on. The coolant enters from the V2 port of the coolant valve group 51, exits from the V1 port, flows through the battery cooler 26, and is cooled by the refrigerant and then flows out. Then it enters from the V3 port of the coolant valve group 51 and exits from the V4 port to complete the cooling cycle of the coolant for the battery pack.

[0113] In the air-conditioning triangular circulation heating mode, refer to Figure 10As shown, the compressor 1 starts, the second expansion valve 24 opens, the first expansion valve 23 and the third expansion valve 25 close, the first port 211 and the fifth port 215 are conducted, the first water pump 52 and the second water pump 53 close, and the movable air damper is in the second state.

[0114] The controller issues an instruction to start the compressor 1. The high-temperature and high-pressure refrigerant gas exits from the exhaust port of the compressor 1, flows through the first condenser 31, and is cooled by the internal air of the passenger compartment to become a medium-temperature and high-pressure refrigerant gas. Then, through the regulation of the refrigerant valve group 21, it enters from the fifth port 215 and exits from the first port 211. After flowing through the high-pressure input port of the gas-liquid separation tank 22, it flows to the second expansion valve 24. After throttling and pressure reduction by the second expansion valve 24 (at this time, the battery water circuit does not work and the battery cooler 26 does not exchange heat), it becomes a medium-temperature and low-pressure refrigerant gas, flows through the low-pressure input port and the low-pressure output port of the gas-liquid separation tank 22, and returns to the intake port of the compressor 1 to repeat the triangular cycle.

[0115] Combined Figure 11 As shown, in some embodiments, a fourth expansion valve 27 is provided between the exhaust port of the compressor 1 and the third port 213; the vehicle-mounted thermal management system further includes an air-conditioning heat pump heating + hot gas bypass mode.

[0116] In the air-conditioning heat pump heating + hot gas bypass mode, refer to Figure 12 As shown, the compressor 1 starts, the third expansion valve 25 and the fourth expansion valve 27 open, the first expansion valve 23 and the second expansion valve 24 close, the first port 211 and the fifth port 215 are conducted, the second port 212 and the third port 213 are conducted, the first water pump 52 and the second water pump 53 close, and the movable air damper is in the second state.

[0117] On the basis of the heat pump mode operation, the fourth expansion valve 27 is opened. The high-temperature and high-pressure refrigerant gas output by the compressor 1 is throttled and pressure-reduced, and a part of the high-temperature refrigerant gas is directly mixed with the low-temperature and low-pressure refrigerant gas coming out of the second condenser 81 and then enters the low-pressure inlet of the gas-liquid separation tank 22 and returns to the intake port of the compressor 1 to repeat the heat pump cycle. This embodiment can increase the low-pressure of the system and the suction superheat of the compressor 1, and improve the efficiency of the system's heat pump operation.

[0118] In some embodiments, the vehicle-mounted thermal management system includes an air-conditioning defrosting mode.

[0119] In the air-conditioning defrosting mode, refer to Figure 13 As shown, the compressor 1 starts, the second expansion valve 24 opens, the first expansion valve 23 and the third expansion valve 25 close, the first port 211 and the fourth port 214 are conducted, the second port 212 and the fifth port 215 are conducted, the first water pump 52 opens, the second water pump 53 closes, the V1 port and the V7 port are conducted, and the V3 port and the V6 port are conducted.

[0120] The controller issues an instruction to start the compressor 1. The high-temperature and high-pressure refrigerant gas flows out from the exhaust port of the compressor 1, passes through the first condenser 31, and then, through the regulation of the refrigerant valve group 21, enters from the fifth port 215, exits from the second port 212, flows into the second condenser 81, and melts and evaporates the frost condensed on the evaporation condenser by heating therein. The cooled refrigerant liquid enters from the fourth port 214 of the refrigerant valve group 21 and exits from the first port 211, flows through the high-pressure input port of the gas-liquid separation tank 22, and then flows to the second expansion valve 24. After throttling and pressure reduction by the second expansion valve 24 (at this time, the motor water circuit is working), it evaporates and absorbs heat therein, turns into refrigerant gas, flows through the low-pressure input port and the low-pressure output port of the gas-liquid separation tank 22, and returns to the intake port of the compressor 1 to repeat the cycle.

[0121] At this time, the first water pump 52 of the motor cooling water circuit is turned on, driving the coolant of the motor water circuit to enter from the V7 port of the coolant valve group 51 and exit from the V1 port, flow through the battery cooler 26, and after being cooled by absorbing heat from the refrigerant therein, it flows out, enters from the V3 port of the coolant valve group 51 and exits from the V6 port, completing the water circuit cycle of motor waste heat recovery.

[0122] In some embodiments, the vehicle thermal management system further includes a motor cooling mode, a battery temperature equalization mode, a battery heating mode, and a battery natural cooling mode.

[0123] In the motor cooling mode, refer to Figure 14 As shown, the compressor 1 is turned off, the first water pump 52 is turned on, the second water pump 53 is turned off, and the V5 port and the V6 port are conducted.

[0124] The controller issues an instruction to turn on the first water pump 52 of the motor cooling water circuit, driving the coolant of the motor water circuit to flow into the low-temperature heat exchanger 82, and being cooled by the outside air therein, and then enters from the V5 port of the coolant valve group 51 and exits from the V6 port, returning to the motor cooling water circuit to complete the water circuit cycle of the motor cooling mode.

[0125] In the battery temperature equalization mode, refer to Figure 15 As shown, the compressor 1 is turned off, the second water pump 53 is turned on, the first water pump 52 is turned off, and the V2 port and the V4 port are conducted.

[0126] The controller issues an instruction to turn on the second water pump 53 of the battery thermal management water circuit, driving the coolant of the battery water circuit to enter from the V2 port of the coolant valve group 51 and exit from the V4 port, completing the self-circulation of the battery water circuit to achieve the purpose of equalizing the battery temperature.

[0127] In the battery heating mode, refer to Figure 16 As shown, the compressor 1 is turned off, the first water pump 52 and the second water pump 53 are turned on, the V2 port and the V6 port are conducted, and the V4 port and the V7 port are conducted.

[0128] The controller sends a command, and the first water pump 52 of the motor cooling water circuit and the second water pump 53 of the battery thermal management water circuit are turned on. At this time, the motor uses the stall function to generate heat, and after the coolant in the motor water circuit is heated, it enters through the V7 port and exits through the V4 port of the coolant valve group 51, enters the battery thermal management water circuit, and the coolant after heating the battery enters through the V2 port and exits through the V6 port of the coolant valve group 51, returns to the motor water circuit, and completes the water circuit circulation of the battery heating mode.

[0129] In the battery natural cooling mode, refer to Figure 17 As shown, the compressor 1 is turned off, the first water pump 52 and the second water pump 53 are turned on, the V2 port and the V6 port are connected, and the V4 port and the V5 port are connected.

[0130] The controller issues a command, the first water pump 52 of the motor cooling water circuit and the second water pump 53 of the battery thermal management water circuit are turned on, and the coolant of the battery thermal management water circuit enters through the V2 port of the coolant valve group 51 and exits through the V6 port, flows into the motor water circuit, and then flows into the low-temperature heat exchanger 82, where it is cooled by the outside air, and then enters through the V5 port of the coolant valve group 51 and exits through the V4 port, returns to the battery thermal management water circuit, and completes the water circuit cycle of the battery natural cooling mode.

[0131] In some embodiments, the vehicle thermal management system includes a motor waste heat recovery mode and a battery motor waste heat recovery mode.

[0132] In motor waste heat recovery mode, refer to Figure 18 As shown, the first water pump 52 is turned on, the second water pump 53 is turned off, the V1 port and the V7 port are connected, and the V3 port and the V6 port are connected.

[0133] The controller sends a command, and the first water pump 52 of the motor cooling water circuit is turned on. The coolant in the motor water circuit enters through the V7 port of the coolant valve group 51 and exits through the V1 port, flows into the battery cooler 26, transfers heat to the refrigerant, and then enters through the V3 port of the coolant valve group 51 and exits through the V6 port to return to the motor cooling water circuit, completing the water circuit circulation in the motor waste heat recovery mode.

[0134] In battery motor waste heat recovery mode, refer to Figure 19 As shown, the first water pump 52 and the second water pump 53 are turned on, the V1 port and the V2 port are connected, the V3 port and the V6 port are connected, and the V4 port and the V7 port are connected.

[0135] The controller issues an instruction to turn on the first water pump 52 of the motor cooling water circuit and the second water pump 53 of the battery thermal management water circuit. The coolant in the motor water circuit enters through the V7 port of the coolant valve group 51 and exits through the V4 port, flowing into the battery thermal management water circuit. Then, it enters through the V2 port of the coolant valve group 51 and exits through the V1 port, flowing into the battery cooler 26, where heat is transferred to the refrigerant. Then, it enters through the V3 port of the coolant valve group 51 and exits through the V6 port, returning to the motor cooling water circuit, completing the water circuit cycle of the motor-battery waste heat recovery mode.

[0136] On the other hand, this embodiment provides a vehicle, and the vehicle includes the vehicle thermal management system described in this application. The vehicle of this embodiment adopts the vehicle thermal management system of this application and has all the beneficial technical effects of all embodiments herein.

[0137] It should be noted that, as mentioned in this article, "several" and "at least one" refer to one or more, and "multiple" and "at least two" refer to two or more. "And / or" describes the association relationship of associated objects and indicates that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0138] In the description of this application, it should be noted that 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; it can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0139] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0140] In the description of this specification, the description with reference to terms such as "certain embodiments", "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of this application.

[0141] The above are only embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the principles of the present application shall be included within the protection scope of the present application.

Claims

1. A vehicle thermal management system, characterized in that: The vehicle thermal management system comprises: a compressor (1), a refrigerant integrated module (2), a HVAC assembly (3), a liquid storage device (4), a coolant integrated module (5), a battery cooling module (6), a low-temperature cooling module (7) and an external cooling module (8); The compressor (1), the refrigerant integrated module (2) and the HVAC assembly (3) are connected in a loop in sequence, and the refrigerant integrated module (2) is connected to the external cooling module (8); The liquid storage device (4) is connected to the coolant integrated module (5), the battery cooling module (6), the low-temperature cooling module (7) and the external cooling module (8) are respectively connected to the coolant integrated module (5), and the coolant integrated module (5) is connected to the refrigerant integrated module (2); The refrigerant integration module (2) is used to adjust the flow direction of the refrigerant, the HVAC assembly (3) is used to realize the cooling and heating functions of the passenger compartment, the battery cooling module (6) is used to adjust the temperature of the vehicle battery pack, the low-temperature cooling module (7) is used to adjust the temperature of the electrical components, and the external cooling module (8) is used to exchange heat between the refrigerant and the coolant and the outside air.

2. The vehicle thermal management system according to claim 1, characterized in that: The refrigerant integrated module (2) comprises a refrigerant valve group (21), a gas-liquid separation tank (22), a first expansion valve (23), a second expansion valve (24), a third expansion valve (25) and a battery cooler (26); The refrigerant valve group (21) comprises a first port (211), a second port (212), a third port (213), a fourth port (214) and a fifth port (215), and any two of the first port (211), the second port (212), the third port (213), the fourth port (214) and the fifth port (215) can be connected to each other; The first port (211) is connected to the high-pressure input port of the gas-liquid separation tank (22); the high-pressure output port of the gas-liquid separation tank (22) is respectively connected to the first expansion valve (23), the second expansion valve (24) and the third expansion valve (25); the second expansion valve (24) is connected to the refrigerant inlet of the battery cooler (26); the refrigerant outlet of the battery cooler (26) is connected to the third port (213); the third port (213) is connected to the low-pressure input port of the gas-liquid separation tank (22); the low-pressure output port of the gas-liquid separation tank (22) is connected to the inlet of the compressor (1); and the third expansion valve (25) is connected to the fourth port (214); The HVAC assembly (3) comprises a first condenser (31), a first evaporator (32) and an active damper, wherein the active damper comprises a first state and a second state, wherein in the first state, the passenger compartment, the first evaporator (32) and the first condenser (31) are cyclically connected, and in the second state, the passenger compartment and the first condenser (31) are connected, an inlet of the first condenser (31) is connected to an outlet of the compressor (1), an outlet of the first condenser (31) is connected to the fifth port (215), an inlet of the first evaporator (32) is connected to the first expansion valve (23), and an outlet of the first evaporator (32) is connected to the third port (213); The external cooling module comprises a second condenser (81) and a low-temperature heat exchanger (82), the inlet of the second condenser (81) is connected to the second port (212), and the outlet of the second condenser (81) is connected to the fourth port (214); The coolant integrated module (5) comprises a coolant valve group (51), a first water pump (52) and a second water pump (53); The coolant valve group (51) comprises a V1 port, a V2 port, a V3 port, a V4 port, a V5 port, a V6 port and a V7 port, wherein the V1 port is connected to the coolant inlet of the battery cooler (26), the V2 port is connected to one end of the battery cooling module (6), the V3 port is connected to the coolant outlet of the battery cooler (26), the V4 port is connected to the inlet of the second water pump (53), the outlet of the second water pump (53) is connected to the other end of the battery cooling module (6), the V5 port is connected to one end of the low-temperature heat exchanger (82), the V7 port is connected to the other end of the low-temperature heat exchanger (82) and the outlet of the first water pump (52), the V6 port is connected to one end of the low-temperature cooling module, and the inlet of the first water pump (52) is connected to the other end of the low-temperature cooling module; The liquid storage device (4) is respectively connected to the inlet of the first water pump (52) and the inlet of the second water pump (53).

3. The vehicle thermal management system according to claim 2, characterized in that: The vehicle thermal management system includes an air conditioning cooling mode, an air conditioning cooling + battery forced cooling mode, and a battery forced cooling mode; In the air conditioning cooling mode, the compressor (1) is started, the first expansion valve (23) is opened, the second expansion valve (24) and the third expansion valve (25) are closed, the first port (211) and the fourth port (214) are connected, the second port (212) and the fifth port (215) are connected, and the first water pump (52) and the second water pump (53) are closed; In the air conditioning refrigeration + battery forced cooling mode, the compressor (1) is started, the first expansion valve (23) and the second expansion valve (24) are opened, the third expansion valve (25) is closed, the first port (211) and the fourth port (214) are connected, the second port (212) and the fifth port (215) are connected, the first water pump (52) is turned off, the second water pump (53) is turned on, the V1 port and the V2 port are connected, and the V3 port and the V4 port are connected; In the battery forced cooling mode, the compressor (1) is started, the second expansion valve (24) is opened, the first expansion valve (23) and the third expansion valve (25) are closed, the first port (211) and the fourth port (214) are connected, the second port (212) and the fifth port (215) are connected, the first water pump (52) is closed, the second water pump (53) is turned on, the V1 port and the V2 port are connected, and the V3 port and the V4 port are connected.

4. The vehicle thermal management system according to claim 2, characterized in that: The vehicle thermal management system includes an air conditioning refrigeration and dehumidification mode and an air conditioning heat pump dehumidification mode; In the air conditioning refrigeration and dehumidification mode, the compressor (1) is started, the first expansion valve (23) is opened, the second expansion valve (24) and the third expansion valve (25) are closed, the first port (211) and the fourth port (214) are connected, the second port (212) and the fifth port (215) are connected, the first water pump (52) and the second water pump (53) are closed, and the movable damper is in the first state; In the air conditioning heat pump dehumidification mode, the compressor (1) is started, the first expansion valve (23) and the third expansion valve (25) are opened, the second expansion valve (24) is closed, the first port (211) and the fifth port (215) are connected, the second port (212) and the third port (213) are connected, the first water pump (52) and the second water pump (53) are closed, and the movable damper is in the first state.

5. The vehicle thermal management system according to claim 2, characterized in that: The vehicle thermal management system includes an air conditioning heat pump heating mode, an air conditioning heat pump heating + battery forced cooling mode, an air conditioning triangle cycle heating mode and an air conditioning heat pump heating + hot air bypass mode; In the air conditioning heat pump heating mode, the compressor (1) is started, the third expansion valve (25) is opened, the first expansion valve (23) and the second expansion valve (24) are closed, the first port (211) and the fifth port (215) are connected, the second port (212) and the third port (213) are connected, the first water pump (52) and the second water pump (53) are closed, and the movable damper is in the second state; In the air conditioning heat pump heating + battery forced cooling mode, the compressor (1) is started, the third expansion valve (25) and the second expansion valve (24) are opened, the first expansion valve (23) is closed, the first port (211) and the fifth port (215) are connected, the second port (212) and the third port (213) are connected, the first water pump (52) and the second water pump (53) are closed, and the movable damper is in the second state; In the air-conditioning triangular cycle heating mode, the compressor (1) is started, the second expansion valve (24) is opened, the first expansion valve (23) and the third expansion valve (25) are closed, the first port (211) and the fifth port (215) are connected, the first water pump (52) and the second water pump (53) are closed, and the movable damper is in the second state.

6. The vehicle thermal management system according to claim 5, characterized in that: A fourth expansion valve (27) is provided between the compressor (1) outlet and the third port (213); The vehicle thermal management system also includes an air conditioning heat pump heating + hot air bypass mode; In the air conditioning heat pump heating + hot air bypass mode, the compressor (1) is started, the third expansion valve (25) and the fourth expansion valve (27) are opened, the first expansion valve (23) and the second expansion valve (24) are closed, the first port (211) and the fifth port (215) are connected, the second port (212) and the third port (213) are connected, the first water pump (52) and the second water pump (53) are closed, and the movable damper is in the second state.

7. The vehicle thermal management system according to claim 2, characterized in that: The vehicle thermal management system includes an air conditioning de-icing mode; In the air conditioner ice-out mode, the compressor (1) is started, the second expansion valve (24) is opened, the first expansion valve (23) and the third expansion valve (25) are closed, the first port (211) and the fourth port (214) are connected, the second port (212) and the fifth port (215) are connected, the first water pump (52) is turned on, the second water pump (53) is turned off, the V1 port and the V7 port are connected, and the V3 port and the V6 port are connected.

8. The vehicle thermal management system according to any one of claims 2 to 7, characterized in that: The vehicle thermal management system also includes a motor cooling mode, a battery temperature equalization mode, a battery heating mode, and a battery natural cooling mode; In the motor cooling mode, the compressor (1) is turned off, the first water pump (52) is turned on, the second water pump (53) is turned off, and the V5 port and the V6 port are connected; In the battery temperature equalization mode, the compressor (1) is turned off, the second water pump (53) is turned on, the first water pump (52) is turned off, and the V2 port and the V4 port are connected; In the battery heating mode, the compressor (1) is turned off, the first water pump (52) and the second water pump (53) are turned on, the V2 port and the V6 port are connected, and the V4 port and the V7 port are connected; In the battery natural cooling mode, the compressor (1) is turned off, the first water pump (52) and the second water pump (53) are turned on, the V2 port and the V6 port are connected, and the V4 port and the V5 port are connected.

9. The vehicle thermal management system according to any one of claims 2 to 8, characterized in that: The vehicle thermal management system includes a motor waste heat recovery mode and a battery motor waste heat recovery mode; In the motor waste heat recovery mode, the first water pump (52) is turned on, the second water pump (53) is turned off, the V1 port and the V7 port are connected, and the V3 port and the V6 port are connected; In the battery motor waste heat recovery mode, the first water pump (52) and the second water pump (53) are turned on, the V1 port and the V2 port are connected, the V3 port and the V6 port are connected, and the V4 port and the V7 port are connected.

10. A vehicle, characterized in that: The vehicle comprises the on-vehicle thermal management system according to any one of claims 1 to 9.

Images