CN-122008783-A - Thermal management system of vehicle and vehicle

Abstract

The embodiment of the application provides a thermal management system of a vehicle and the vehicle, wherein the thermal management system of the vehicle comprises: a refrigerant circulation circuit and a cooling liquid circulation circuit. The refrigerant circulation loop comprises a compressor, a condensation flow path and an evaporation flow path which are sequentially connected in series, wherein the condensation flow path comprises the refrigerant sides of the air-cooled condenser and the liquid-cooled condenser, and the evaporation flow path comprises the refrigerant sides of the throttle valve, the air-cooled evaporator and the battery cooler. The cooling liquid circulation loop comprises a warm air flow path, a battery flow path and an electric drive flow path, wherein the battery flow path is connected in parallel with the warm air flow path and then is connected in series with the electric drive flow path, the cooling liquid side of the liquid cooling condenser is a first cooling liquid side, and the warm air flow path comprises a first cooling liquid side, an electric heater and a first warm air core body which are sequentially connected in series. According to the vehicle thermal management system of the present embodiment, the thermal management system occupies a small space inside the vehicle.

Inventors

• XIE GUANCHAO

Assignees

• 广州汽车集团股份有限公司

Dates

Publication Date

20260512

Application Date

20260127

Claims (14)

1. 1.A thermal management system for a vehicle, comprising a refrigerant circulation circuit and a coolant circulation circuit; The refrigerant circulation loop comprises a compressor, a condensation flow path and an evaporation flow path which are sequentially connected in series, the condensation flow path comprises an air-cooled condenser and a refrigerant side of the liquid-cooled condenser, the refrigerant side of the liquid-cooled condenser is a first refrigerant side, the first refrigerant side is arranged in parallel with the air-cooled condenser, the evaporation flow path comprises a throttle valve, an air-conditioner evaporator and a refrigerant side of a battery cooler, the refrigerant side of the battery cooler is a second refrigerant side, the second refrigerant side is arranged in parallel with the air-conditioner evaporator, and the air-conditioner evaporator is used for adjusting the temperature of a passenger cabin; The cooling liquid circulation loop comprises a warm air flow path, a battery flow path and an electric drive flow path, wherein the battery flow path is connected with the warm air flow path in parallel and then is connected with the electric drive flow path in series, the cooling liquid side of the liquid cooling condenser is a first cooling liquid side, the warm air flow path comprises the first cooling liquid side, an electric heater and a first warm air core which are sequentially connected in series, the first warm air core is used for adjusting the temperature of a passenger cabin, the cooling liquid side of the battery cooler is a second cooling liquid side, the battery flow path comprises the second cooling liquid side and is used for adjusting the temperature of a power battery, and the electric drive flow path comprises a first water pump and an electric drive radiator which are connected in series and is used for radiating the electric drive assembly.
2. 2. The thermal management system of a vehicle of claim 1, wherein the battery flow path comprises a first multi-way proportional valve and first and second branches disposed in series, the first branch comprising the second coolant side, the power battery having a battery heat exchange flow path, the second branch comprising a second water pump and the battery heat exchange flow path disposed in series, three valve ports of the first multi-way proportional valve being respectively connected to an inlet end of the first branch, an outlet end of the second branch, and an inlet end of the warm air flow path, an inlet end of the second branch being connected to an outlet end of the warm air flow path, an outlet end of the first branch being connected to an inlet end of the second branch.
3. 3. The thermal management system of a vehicle of claim 2, wherein the second branch is provided with a first temperature sensor, the first temperature sensor is located between the first water pump and the battery heat exchange flow passage and is used for detecting the temperature of the cooling liquid of the second branch, the first multi-way proportional valve is electrically connected with the first temperature sensor, and/or the battery flow passage further comprises a first bypass pipeline and a second multi-way proportional valve, the first bypass pipeline is arranged in parallel with the battery heat exchange flow passage, the second multi-way proportional valve is arranged in the second branch, the outlet end of the battery heat exchange flow passage and the outlet end of the first bypass pipeline are respectively connected with two valve ports of the second multi-way proportional valve, and the other valve port of the second multi-way proportional valve is connected with one valve port of the first multi-way proportional valve.
4. 4. The thermal management system of a vehicle of claim 1, comprising a second bypass line and a third multi-way proportional valve, the second bypass line being disposed in parallel with the warm air flow path, three ports of the third multi-way proportional valve being connected to an outlet end of the electric drive flow path, an inlet end of the warm air flow path, and an inlet end of the second bypass line, respectively.
5. 5. The thermal management system of a vehicle according to claim 4, comprising a first connecting line and a second temperature sensor, wherein one end of the first connecting line is connected to an outlet end of the second bypass line and an outlet end of the warm air flow path, the other end of the first connecting line is connected to an inlet end of the electric drive flow path, the second temperature sensor is provided to the first connecting line and is used for detecting a temperature of the coolant of the first connecting line, the third multi-way proportional valve is electrically connected to the second temperature sensor, and the second temperature sensor is electrically connected to the electric heater.
6. 6. The thermal management system of a vehicle of claim 4, comprising a first connecting conduit having one end connected to the outlet end of the second bypass conduit and the outlet end of the warm air flow path, the electric drive flow path including an electric drive assembly heat dissipation flow path, a water pump flow path, and an electric drive radiator flow path, the other end of the first connecting conduit being connected to the inlet end of the electric drive assembly heat dissipation flow path, the water pump flow path being connected in series between the electric drive assembly heat dissipation flow path and the electric drive radiator flow path, the outlet end of the electric drive radiator flow path being connected to one of the valve ports of the third multi-way proportional valve, the water pump flow path including the first water pump, the electric drive assembly heat dissipation flow path being for dissipating heat from the electric drive assembly, the electric drive radiator flow path including the electric drive radiator.
7. 7. The thermal management system of a vehicle of claim 6, wherein the electrically driven flow path includes a third bypass line and a fourth multi-pass proportional valve, the third bypass line being disposed in parallel with the electrically driven radiator flow path, three ports of the fourth multi-pass proportional valve being connected to an outlet end of the water pump flow path, an outlet end of the electrically driven radiator flow path, and one port of the third multi-pass proportional valve, respectively.
8. 8. The thermal management system of a vehicle of claim 6, wherein the electric drive assembly includes a motor having a motor heat exchange flow passage and a controller having a controller heat exchange flow passage, the electric drive assembly heat dissipation flow passage including the motor heat exchange flow passage and the controller heat exchange flow passage disposed in series, the controller heat exchange flow passage being located on an upstream side of the motor heat exchange flow passage.
9. 9. The thermal management system of a vehicle of claim 8, wherein the electric drive assembly heat dissipation flow path further comprises a second warm air core in series between the controller heat exchange flow path and the motor heat exchange flow path for regulating a temperature of the passenger compartment, the second warm air core being located at a rear portion of the vehicle and the first warm air core being located at a front portion of the vehicle.
10. 10. The vehicle thermal management system of claim 6, wherein the electric drive assembly includes an electric machine having a motor heat transfer flow passage, the electric machine including a front electric machine and a rear electric machine, the electric drive assembly heat dissipation flow passage including a front heat dissipation branch and a rear heat dissipation branch disposed in parallel, the front heat dissipation branch including the motor heat transfer flow passage of the front electric machine and the rear heat dissipation branch including the motor heat transfer flow passage of the rear electric machine, and/or the vehicle including an engine, the thermal management system further including an intercooler flow passage disposed in parallel with the electric drive assembly heat dissipation flow passage and including a water-cooled intercooler, the intercooler flow passage being in series with a two-way valve.
11. 11. The thermal management system of a vehicle according to any one of claims 1 to 10, comprising a radiator fan, the electrically driven radiator and the air-cooled condenser being located on a front side of the radiator fan, the electrically driven radiator and the air-cooled condenser being arranged in an up-down direction.
12. 12. The thermal management system of a vehicle of claim 1, further comprising an engine heat exchanger and an engine radiator, the engine heat exchanger comprising a first heat exchange side for exchanging heat with the engine and a second heat exchange side connected with the engine radiator to form an engine cooling circuit, the second heat exchange side being in series between the first coolant side and the electric heater.
13. 13. The thermal management system of claim 12, wherein the warm air flow path includes a fourth bypass line and a fifth multi-way proportional valve, the fourth bypass line being connected in series between the first coolant side and the electric heater and being disposed in parallel with the second heat exchange side, three valve ports of the fifth multi-way proportional valve being connected to an outlet end of the first coolant side, an inlet end of the second heat exchange side, and an inlet end of the fourth bypass line, respectively, and/or includes a radiator fan, the electric radiator, the air-cooled condenser, and the engine radiator being all located on a front side of the radiator fan, the electric radiator and the air-cooled condenser being all located on a front side of the engine radiator and being arranged in an up-down direction.
14. 14. A vehicle comprising a thermal management system of the vehicle according to any one of claims 1-13.

Description

Thermal management system of vehicle and vehicle Technical Field The embodiment of the application relates to the technical field of vehicles, in particular to a thermal management system of a vehicle and the vehicle. Background The thermal management system of the vehicle is used for adjusting the temperature of the power battery and the passenger cabin and cooling the motor, the engine and other parts of the vehicle. The related art vehicle has a problem in that the thermal management system occupies a large space. Disclosure of Invention The embodiment of the application provides a thermal management system of a vehicle, which occupies smaller space in the vehicle. The application further provides a vehicle with the thermal management system. According to the vehicle thermal management system, the vehicle thermal management system comprises a refrigerant circulation loop and a cooling liquid circulation loop, wherein the refrigerant circulation loop comprises a compressor, a condensation flow path and an evaporation flow path which are sequentially connected in series, the condensation flow path comprises a first refrigerant side which is a first refrigerant side of the liquid cooling condenser, the evaporation flow path comprises a throttle valve, an air conditioning evaporator and a battery cooler, the refrigerant side of the battery cooler is a second refrigerant side, the second refrigerant side is connected with the air conditioning evaporator in parallel, the air conditioning evaporator is used for adjusting the temperature of a passenger cabin, the cooling liquid circulation loop comprises a warm air flow path, a battery flow path and an electric drive flow path, the battery flow path is connected with the warm air flow path in parallel and then is connected with the electric drive flow path in series, the cooling liquid side of the liquid cooling condenser is a first cooling liquid side, the warm air flow path comprises the first cooling liquid side, the first cooling liquid side is connected with the air conditioning evaporator in series, the refrigerant side of the battery cooler is a second refrigerant side, the second refrigerant side is connected with the second cooling side is connected with the air conditioning evaporator in parallel, the second refrigerant side is used for adjusting the temperature of the passenger cabin, the second cooling liquid is connected with the electric drive flow path in parallel, the battery cooling liquid is connected with the first cooling liquid side in series, and the electric drive flow path is used for adjusting the temperature of the passenger cabin, and the electric drive flow path is used for cooling the passenger cabin. According to the thermal management system of the vehicle, the warm air flow path, the battery flow path and the electric drive flow path together form the cooling liquid circulation loop, so that the warm air flow path, the battery flow path and the electric drive flow path share the same pipeline system, the space occupied by the thermal management system in the vehicle is reduced, when the first warm air core is used for heating a passenger cabin, the temperature of the cooling liquid in the battery flow path can be reduced by utilizing the heat emitted by the liquid cooling condenser in the refrigerant condensation process, and the heat exchange is carried out by utilizing the first cooling liquid side and the cooling liquid in the warm air flow path, the heating pressure of the electric heater in the warm air flow path can be reduced by utilizing the heat, the electric heater with smaller power can also meet the heating requirement of the first warm air core, and therefore the manufacturing size of the electric heater can be smaller, and the electric radiator with smaller power can also meet the manufacturing requirements of the electric radiator of the electric heat management system. According to some embodiments of the application, the battery flow path comprises a first multi-way proportional valve, a first branch and a second branch, wherein the first branch comprises the second cooling liquid side, the power battery is provided with a battery heat exchange flow channel, the second branch comprises a second water pump and the battery heat exchange flow channel, the second water pump and the battery heat exchange flow channel are arranged in series, three valve ports of the first multi-way proportional valve are respectively connected with an inlet end of the first branch, an outlet end of the second branch and an inlet end of the warm air flow path, an inlet end of the second branch is connected with an outlet end of the warm air flow path, and an outlet end of the first branch is connected with an inlet end of the second branch. In the above technical scheme, through being equipped with first multichannel proportional valve and the first branch road and the second branch road that establish ties and set up, can utilize the se