Vehicle thermal management system

Abstract

The invention discloses a vehicle heat management system which comprises an air conditioner refrigerant loop used for cooling a battery, a passenger compartment and a motor, an air conditioner warm air water circulation loop used for heating the passenger compartment and a motor cooling circulation loop, and the air conditioner warm air water circulation loop sequentially comprises a warm air water pump, a water heater and a warm air core. A first multi-way valve and a second multi-way valve are arranged at the two ends of the air conditioner warm air water circulation loop respectively so as to be connected with the air conditioner refrigerant loop and the motor cooling circulation loop, and the vehicle heat management system comprises a heating mode. The air conditioner refrigerant loop and the motor cooling circulation loop are communicated with the air conditioner warm air water circulation loop so that heat of a battery and / or heat of a motor can be transferred to the passenger compartment. A refrigerant can be used for directly cooling the battery, and the heat exchange efficiency is high; and heat of the battery and the motor can be transferred to a passenger compartment through the liquid cooling condenser, so that the heating efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of vehicle technology, specifically relating to a vehicle thermal management system. Background Technology

[0002] With the government's increased efforts to promote new energy vehicles, pure electric vehicles are becoming increasingly common in daily life and production. However, light trucks do not support the direct heat pump technology route used in passenger cars due to their cost, structure, and operating conditions. For example, the distance between the front of the light truck and the cab is short, which does not support the development of multi-core air conditioning boxes; light trucks have heavy loads and high daily mileage, so how can the large amount of heat generated during high-current discharge and fast charging be quickly transferred? The passenger compartment generally uses APTC or water heaters for heating, which consumes a lot of electricity; and the motor needs high torque when starting under heavy load, so how can it cope with the continuous challenges of short-term heat loads exceeding the rated operating conditions?

[0003] Currently, most motor cooling circuits use cooling water to cool the motor. The cooling water, heated by the motor's water jacket, then exchanges heat with the environment. This approach inevitably results in the motor's cooling water temperature not being lower than the ambient temperature. If a short-term increase in torque is required, it is difficult to adjust the motor and motor water circuit to a temperature lower than the ambient temperature.

[0004] The common cooling solutions for power batteries in light trucks are liquid cooling and air cooling. Due to their large capacity, there are currently few direct cooling thermal management solutions for power batteries. Light trucks are limited by the space in the passenger compartment and cannot add indoor condensers. They often use APTC or water heaters for heating. Even if some manufacturers have developed indirect water source heat pumps, it is difficult to obtain heat directly from the battery, air, and motor circuit. Summary of the Invention

[0005] This application provides a vehicle thermal management system that solves at least one of the above-mentioned problems.

[0006] The technical solution adopted in this application is as follows:

[0007] A vehicle thermal management system includes an air conditioning refrigerant circuit for cooling a battery, a passenger compartment, and a motor; an air conditioning heater water circulation circuit for heating the passenger compartment; and a motor cooling circulation circuit. The air conditioning heater water circulation circuit sequentially includes a heater water pump, a water heater, and a heater core. A first multi-way valve and a second multi-way valve are respectively provided at both ends of the air conditioning heater water circulation circuit to connect the air conditioning refrigerant circuit and the motor cooling circulation circuit. The vehicle thermal management system includes a heating mode in which the air conditioning refrigerant circuit and the motor cooling circulation circuit are connected through the air conditioning heater water circulation circuit to transfer heat from the battery and / or the motor to the passenger compartment.

[0008] The air conditioning refrigerant circuit includes an air conditioning refrigeration branch, a motor waste heat recovery refrigeration branch, and a direct-cooling battery refrigeration branch, all connected in parallel. Each of these branches is connected to the main circuit.

[0009] The main circuit is equipped with a water-cooled condenser, a pressure sensor, and a compressor; the air conditioning refrigeration branch circuit includes, in sequence, a water-cooled condenser, a pressure sensor, a compressor, a shut-off valve, and an evaporator; the motor waste heat recovery refrigeration branch circuit includes, in sequence, a first electronic expansion valve, a chiller, and a first refrigerant temperature and pressure sensor; and the direct-cooling battery refrigeration branch circuit includes, in sequence, a second electronic expansion valve, a second refrigerant temperature and pressure sensor, a direct-cooling battery, and a third electronic expansion valve.

[0010] The motor cooling circulation loop sequentially includes a third multi-way valve, a cooling module assembly, a first multi-way valve, the water-cooled condenser, a second multi-way valve, a motor water pump, an all-in-one electric drive system, a motor, and a motor outlet water temperature sensor.

[0011] The first multi-way valve includes a first valve port, a second valve port, a third valve port, and a fourth valve port. The first valve port is connected to the water-cooled condenser, the second valve port is connected to the heater core, the third valve port is connected to the chiller, and the fourth valve port is connected to the cooling module assembly. The second multi-way valve includes a fifth valve port, a sixth valve port, a seventh valve port, and an eighth valve port. The fifth valve port is connected to the water-cooled condenser, the sixth valve port is connected to the motor water pump, the seventh valve port is connected to the chiller, and the eighth valve port is connected to the heater water pump.

[0012] The third multi-way valve includes a ninth valve port, a tenth valve port, and an eleventh valve port. The ninth valve port is connected to the motor, the tenth valve port is connected to the first valve port, and the eleventh valve port is connected to the cooling module assembly.

[0013] The motor cooling circulation loop also includes a high torque mode. In the high torque mode, the motor cooling circulation loop also includes the CHILLER, and the CHILLER is disposed between the first multi-way valve and the second multi-way valve.

[0014] The high torque mode is configured to be manually activated.

[0015] In the heating mode, the motor cooling circulation loop also includes the CHILLER, and the CHILLER is located between the first multi-way valve and the second multi-way valve in the loop. The CHILLER transfers the flow to the water-cooled condenser through the third valve port and the first valve port, and flows to the warm air pump through the fifth valve port and the eighth valve port.

[0016] In the heating mode, when the temperature measured by the motor outlet water temperature sensor is lower than the preset temperature, the water heater is turned on for auxiliary heating.

[0017] In the heating mode, the water-cooled condenser is configured to transfer the flow of the direct-cooling battery refrigeration branch to the air conditioning heating water circulation loop through the fifth valve port.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0019] This application proposes a solution that improves cooling efficiency by setting up an air conditioning refrigerant circuit to directly cool the battery with the refrigerant. Furthermore, this application utilizes heat from the air conditioning refrigerant circuit and the motor cooling circulation circuit to transfer heat from the air conditioning heater water circulation circuit to the passenger compartment for heating, thus broadening the energy source and improving heating efficiency. In the air conditioning refrigerant circuit, three parallel branches achieve air conditioning cooling, motor waste heat recovery, and direct battery cooling, directly cooling the passenger compartment, battery, and motor. When the passenger compartment needs heating, such as in spring and autumn when the interior temperature is low, and the passenger compartment needs heating while the battery needs cooling, heat from the battery is transferred to the passenger compartment through the first and second multi-way valves. Conversely, in winter when both passenger compartment heating and motor cooling are needed, heat from the motor cooling circuit is transferred to the passenger compartment, optimizing the energy source for passenger compartment heating, avoiding the low heating efficiency of a single water heater heating method, and rationally allocating and utilizing the energy of the entire thermal management system. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a block diagram of thermal management in one embodiment of the present invention;

[0022] Figure 2 This is a block diagram of thermal management cooling and heating in one embodiment of the present invention;

[0023] Figure 3 This is a block diagram of thermal management in high torque mode according to an embodiment of the present invention;

[0024] Figure 4 This is a block diagram of thermal management cooling and heating in another embodiment of the present invention;

[0025] Figure 5 This is a block diagram of thermal management cooling and heating in another embodiment of the present invention;

[0026] Figure 6This is a schematic diagram of another thermal management block diagram in one embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Water-cooled condenser, 2-Pressure sensor, 3-Second multi-way valve, 4-Motor water pump, 5-All-in-one electric drive system, 6-Motor, 7-Motor outlet water temperature, 8-Third multi-way valve, 9-Cooling module assembly, 10-First multi-way valve, 11-Heat air pump, 12-Water heater, 13-Heat air core, 14-Stop valve, 15-Evaporator, 16-Compressor, 17-First electronic expansion valve, 18-CHILLER, 19-First refrigerant temperature and pressure sensor, 20-Second electronic expansion valve, 21-Second refrigerant temperature and pressure sensor, 22-Direct cooling battery, 23-Third electronic expansion valve. Detailed Implementation

[0029] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0031] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0034] This application provides a vehicle thermal management system, such as... Figures 1 to 6 As shown, the system includes an air conditioning refrigerant circuit for cooling the battery, passenger compartment, and motor 6; an air conditioning heater water circulation circuit for heating the passenger compartment; and a motor 6 cooling circulation circuit. The air conditioning heater water circulation circuit includes, in sequence, a heater water pump 11, a water heater 12, and a heater core 13. A first multi-way valve 10 and a second multi-way valve 3 are respectively provided at both ends of the air conditioning heater water circulation circuit to connect the air conditioning refrigerant circuit and the motor 6 cooling circulation circuit. The vehicle thermal management system includes a heating mode. In the heating mode, the air conditioning refrigerant circuit and the motor 6 cooling circulation circuit are connected through the air conditioning heater water circulation circuit to transfer heat from the battery and / or the motor 6 to the passenger compartment.

[0035] This application proposes an air conditioning refrigerant circuit to directly cool the battery, improving cooling efficiency. Furthermore, it utilizes heat from the air conditioning refrigerant circuit and the motor 6 cooling circulation circuit to transfer heat from the air conditioning heater water circulation circuit to the passenger compartment, thus broadening energy sources and improving heating efficiency. In the air conditioning refrigerant circuit, three parallel branches achieve air conditioning cooling, motor 6 waste heat recovery, and direct cooling of the battery 22. These three parallel circuits directly cool the passenger compartment, battery, and motor 6. When the passenger compartment needs heating, such as in spring and autumn when the interior temperature is low, and the battery needs cooling, heat from the battery is transferred to the passenger compartment through the first multi-way valve 10 and the second multi-way valve 3. Conversely, in winter when both passenger compartment heating and motor 6 cooling are required, heat from the motor 6 cooling circuit is transferred to the passenger compartment. This optimizes the energy source for passenger compartment heating, avoids the low heating efficiency of a single water heater 12 heating method, and rationally allocates and utilizes the energy of the entire thermal management system.

[0036] Furthermore, the air conditioning refrigerant circuit includes an air conditioning refrigeration branch, a motor 6 waste heat recovery refrigeration branch, and a direct-cooling battery 22 refrigeration branch arranged in parallel. The air conditioning refrigeration branch, the motor 6 waste heat recovery refrigeration branch, and the direct-cooling battery 22 refrigeration branch are all connected to the main circuit.

[0037] The main circuit includes a water-cooled condenser 1, a pressure sensor 2, and a compressor 16; the air conditioning refrigeration branch includes a water-cooled condenser 1, a pressure sensor 2, a compressor 16, a shut-off valve 14, and an evaporator 15; the waste heat recovery refrigeration branch of the motor 6 includes a first electronic expansion valve 17, a chiller 18, and a first refrigerant temperature and pressure sensor 19; and the direct-cooling battery 22 refrigeration branch includes a second electronic expansion valve 20, a second refrigerant temperature and pressure sensor 21, a direct-cooling battery 22, and a third electronic expansion valve 23.

[0038] like Figure 2 As shown, when the external ambient temperature is high, the passenger compartment, battery, and motor 6 need to be cooled. When the battery needs cooling, the first electronic expansion valve 17 is closed, and the refrigerant circulation direction is: compressor 16, water-cooled condenser 1, third electronic expansion valve 23, direct-cooled battery 22, second refrigerant temperature and pressure sensor 21, and second electronic expansion valve 20. At this time, the direct-cooled battery 22 acts as the evaporator 15, and the heat from the power battery is directly carried away through the refrigerant circuit. When the passenger compartment also needs cooling, the refrigerant, after exiting the water-cooled condenser 1, is distributed to the shut-off valve 14 and evaporator 15 on the parallel air conditioning refrigeration circuit, and to the second electronic expansion valve 20, second refrigerant temperature and pressure sensor 21, direct-cooled battery 22, and third electronic expansion valve 23 on the direct-cooled battery 22 refrigeration circuit. This scheme can directly cool the battery with refrigerant, reducing the secondary heat exchange efficiency problem when the coolant transfers energy.

[0039] The cooling circulation loop of the motor 6 includes, in sequence, a third multi-way valve 8, a cooling module assembly 9, a first multi-way valve 10, a water-cooled condenser 1, a second multi-way valve 3, a motor water pump 4, an all-in-one electric drive system 5, a motor 6, and a motor outlet water temperature sensor 7.

[0040] It should be noted that, as Figure 3 As shown, when the external ambient temperature is high, the cooling circulation loop of motor 6 performs cooling circulation according to the above scheme. The high external ambient temperature mentioned here refers to conditions such as high temperatures in summer. Furthermore, the working mode of the thermal management system of this application is switched by the vehicle thermal management controller based on sensor information. Therefore, the specific temperature at which the above-mentioned cooling circulation method is activated can be set, which can be achieved using existing technology.

[0041] Further, the first multi-way valve 10 includes a first valve port, a second valve port, a third valve port, and a fourth valve port. The first valve port is connected to the water-cooled condenser 1, the second valve port is connected to the heater core 13, the third valve port is connected to the chiller 18, and the fourth valve port is connected to the cooling module assembly 9. The second multi-way valve 3 includes a fifth valve port, a sixth valve port, a seventh valve port, and an eighth valve port. The fifth valve port is connected to the water-cooled condenser 1, the sixth valve port is connected to the motor water pump 4, the seventh valve port is connected to the chiller 18, and the eighth valve port is connected to the heater water pump 11.

[0042] In this scheme, both the first multi-way valve 10 and the second multi-way valve 3 are four-way valves, and the circuit is connected by switching the different valve ports.

[0043] The third multi-way valve 8 includes a ninth valve port, a tenth valve port, and an eleventh valve port. The ninth valve port is connected to the motor 6, the tenth valve port is connected to the first valve port, and the eleventh valve port is connected to the cooling module assembly 9.

[0044] The third multi-way valve 8 is configured as a three-way valve, and can further transfer the heat from the cooling circulation loop of the motor 6 to the water-cooled condenser 1 through the first four-way valve. Then, through the second multi-way valve 3 connected to the water-cooled condenser 1, the heat of the liquid after the cooling circulation of the motor 6 is utilized and introduced into the air conditioning heating water circulation loop through the second multi-way valve 3 for use as heating of the passenger compartment.

[0045] like Figure 3 As shown, the cooling circulation loop of the motor 6 also includes a high torque mode. In the high torque mode, the cooling circulation loop of the motor 6 also includes the CHILLER 18, and the CHILLER 18 is disposed between the first multi-way valve 10 and the second multi-way valve 3.

[0046] The high torque mode is configured to be manually activated.

[0047] The high torque mode can be manually activated by the driver, for example when the vehicle requires it. In this mode, the water temperature at the inlet of motor 6 can be reduced to 25°C to support a longer power mode with a lower water temperature. At this time, the cooling circuit of motor 6 consists of the third multi-way valve 8, cooling module assembly 9, first multi-way valve 10, CHILLER 18, second multi-way valve 3, motor water pump 4, multi-in-one electric drive system 5, motor 6, and motor outlet water temperature sensor 7. The corresponding air conditioning refrigerant circuit for cooling the water temperature of motor 6, namely the waste heat recovery cooling circuit of motor 6, consists of water-cooled condenser 1, pressure sensor 2, compressor 16, first electronic expansion valve 17, CHILLER 18, and first refrigerant temperature and pressure sensor 19. If the battery needs cooling, the circuit of second electronic expansion valve 20, second refrigerant temperature and pressure sensor 21, direct-cooled battery 22, and third electronic expansion valve 23 is also opened. The heat from the battery and motor 6 is carried to the passenger compartment through water-cooled condenser 1. The water flow of water-cooled condenser 1 is second multi-way valve 3, heater water pump 11, water heater 12, heater core 13, first multi-way valve 10, and then back to water-cooled condenser 1.

[0048] like Figure 4 As shown, in the heating mode, the cooling circulation loop of the motor 6 also includes the CHILLER 18, and the CHILLER 18 is located between the first multi-way valve 10 and the second multi-way valve 3 in the loop. The CHILLER 18 transfers the flow to the water-cooled condenser 1 through the third valve port and the first valve port, and flows to the warm air pump 11 through the fifth valve port and the eighth valve port.

[0049] Specifically, in this embodiment, the cooling circulation loop of motor 6 consists of a third multi-way valve 8, a cooling module assembly 9, a first multi-way valve 10, a chiller 18, a second multi-way valve 3, a motor water pump 4, an all-in-one electric drive system 5, a motor 6, and a motor outlet water temperature sensor 7.

[0050] At this time, the air conditioning heating circuit consists of a second multi-way valve 3, a warm air water pump 11, a water heater 12, a warm air core 13, a first multi-way valve 10, and a water-cooled condenser 1.

[0051] like Figure 5 As shown, in the heating mode, when the temperature measured by the motor outlet water temperature sensor 7 is lower than the preset temperature, the water heater 12 is turned on for auxiliary heating.

[0052] When the water heater 12's built-in outlet water temperature sensor detects that the water temperature is too low, the water heater 12 will assist in heating. This solution can transfer the battery's heat to the crew compartment, optimizing the energy source for heating with a single water heater 12 and improving heating efficiency.

[0053] In the heating mode, the water-cooled condenser 1 is configured to transfer the flow of the cooling branch of the direct-cooling battery 22 to the air conditioning heating water circulation loop through the fifth valve port.

[0054] At this time, the heat from the cooling circuit of motor 6 can be transferred to LCC water-cooled condenser 1 via CHILLER 18; and then the heat is transferred to the passenger compartment, optimizing the energy source for heating from a single water heater 12. Furthermore, the thermal management system of this application can adjust the temperature of motor 6 and battery coolant to approximately 25°C during cooling to meet the needs of a longer-lasting power mode for motor 6 in short periods.

[0055] In addition, such as Figure 6 As shown, this application also includes another embodiment, in which the first electronic expansion valve 17, CHILLER 18 and the first refrigerant temperature and pressure sensor 19 can be removed from the circuit to form a thermal management circuit, which is suitable for areas with high ambient temperatures.

[0056] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0057] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0058] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A vehicle thermal management system, characterized in that, The system includes an air conditioning refrigerant circuit for cooling the battery, passenger compartment, and motor; an air conditioning heater water circulation circuit for heating the passenger compartment; and a motor cooling circulation circuit. The air conditioning heater water circulation circuit includes, in sequence, a heater water pump, a water heater, and a heater core. A first multi-way valve and a second multi-way valve are respectively provided at both ends of the air conditioning heater water circulation circuit to connect the air conditioning refrigerant circuit and the motor cooling circulation circuit. The vehicle thermal management system includes a heating mode. In the heating mode, the air conditioning refrigerant circuit and the motor cooling circulation circuit are connected through the air conditioning heater water circulation circuit to transfer heat from the battery and / or the motor to the passenger compartment.

2. The vehicle thermal management system according to claim 1, characterized in that, The air conditioning refrigerant circuit includes an air conditioning refrigeration branch, a motor waste heat recovery refrigeration branch, and a direct-cooling battery refrigeration branch, all connected in parallel. Each of these branches is connected to the main circuit. The main circuit is equipped with a water-cooled condenser, a pressure sensor, and a compressor; the air conditioning refrigeration branch circuit includes, in sequence, a water-cooled condenser, a pressure sensor, a compressor, a shut-off valve, and an evaporator; the motor waste heat recovery refrigeration branch circuit includes, in sequence, a first electronic expansion valve, a chiller, and a first refrigerant temperature and pressure sensor; and the direct-cooling battery refrigeration branch circuit includes, in sequence, a second electronic expansion valve, a second refrigerant temperature and pressure sensor, a direct-cooling battery, and a third electronic expansion valve.

3. The vehicle thermal management system according to claim 2, characterized in that, The motor cooling circulation loop sequentially includes a third multi-way valve, a cooling module assembly, a first multi-way valve, the water-cooled condenser, a second multi-way valve, a motor water pump, an all-in-one electric drive system, a motor, and a motor outlet water temperature sensor.

4. The vehicle thermal management system according to claim 3, characterized in that, The first multi-way valve includes a first valve port, a second valve port, a third valve port, and a fourth valve port. The first valve port is connected to the water-cooled condenser, the second valve port is connected to the heater core, the third valve port is connected to the chiller, and the fourth valve port is connected to the cooling module assembly. The second multi-way valve includes a fifth valve port, a sixth valve port, a seventh valve port, and an eighth valve port. The fifth valve port is connected to the water-cooled condenser, the sixth valve port is connected to the motor water pump, the seventh valve port is connected to the chiller, and the eighth valve port is connected to the heater water pump.

5. The vehicle thermal management system according to claim 4, characterized in that, The third multi-way valve includes a ninth valve port, a tenth valve port, and an eleventh valve port. The ninth valve port is connected to the motor, the tenth valve port is connected to the first valve port, and the eleventh valve port is connected to the cooling module assembly.

6. The vehicle thermal management system according to claim 4, characterized in that, The motor cooling circulation loop also includes a high torque mode. In the high torque mode, the motor cooling circulation loop also includes the CHILLER, and the CHILLER is disposed between the first multi-way valve and the second multi-way valve.

7. The vehicle thermal management system according to claim 6, characterized in that, The high torque mode is configured to be manually activated.

8. The vehicle thermal management system according to claim 4, characterized in that, In the heating mode, the motor cooling circulation loop also includes the CHILLER, and the CHILLER is located between the first multi-way valve and the second multi-way valve in the loop. The CHILLER transfers the flow to the water-cooled condenser through the third valve port and the first valve port, and flows to the warm air pump through the fifth valve port and the eighth valve port.

9. The vehicle thermal management system according to claim 8, characterized in that, In the heating mode, when the temperature measured by the motor outlet water temperature sensor is lower than the preset temperature, the water heater is turned on for auxiliary heating.

10. The vehicle thermal management system according to claim 5, characterized in that, In the heating mode, the water-cooled condenser is configured to transfer the flow of the direct-cooling battery refrigeration branch to the air conditioning heating water circulation loop through the fifth valve port.

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