CN113928085A

CN113928085A - A vehicle thermal management system, control method and vehicle

Info

Publication number: CN113928085A
Application number: CN202111229146.XA
Authority: CN
Inventors: 赵成佳; 李贵宾
Original assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Automobile Research and Development Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Liankong Technologies Co Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-01-14
Anticipated expiration: 2041-10-21
Also published as: CN113928085B

Abstract

The present invention provides a vehicle thermal management system, control method and vehicle, comprising: a refrigerant circuit, a main engine, a condenser and a compressor are arranged on the refrigerant circuit, wherein the main engine includes an evaporative condenser and an air heater. The water circulation circuit, the motor, the battery, the water heater and the water pump are arranged on the water circulation circuit. and a switch valve group for connecting the refrigerant circuit and the water circulation circuit, and the switch valve group includes at least a four-way valve and a switch valve. Wherein, the switching valve group adjusts the medium flow paths in the refrigerant circuit and the water circulation circuit by controlling the opening and closing states of the plurality of outlets. The vehicle thermal management system, control method and vehicle provided by the invention improve the working efficiency of vehicle thermal management.

Description

Vehicle thermal management system, control method and vehicle

Technical Field

The invention relates to the technical field of new energy of vehicles, in particular to a vehicle thermal management system, a control method and a vehicle.

Background

With the continuous development of vehicle technology, higher requirements are also put forward on the performances of safety, energy conservation, comfort and the like of automobiles. In view of the problem of increasing the low-temperature endurance mileage, the existing vehicle thermal management technology generally uses a heat pump air conditioning system to heat and cool the passenger compartment. However, the existing vehicle thermal management system is complex in structure and cannot efficiently switch the thermal management working states of the passenger compartment and the battery pack.

Therefore, how to realize the efficient switching of the thermal management working states of the passenger compartment and the battery pack and optimize the structure of the vehicle thermal management system are problems to be solved urgently.

Disclosure of Invention

In view of the defects of the prior art, the application provides a vehicle thermal management system, a control method and a vehicle, aiming at realizing the efficient switching of the thermal management working states of a passenger compartment and a battery assembly and optimizing the structure of the vehicle thermal management system.

To achieve the above and other objects, the present application provides a vehicle thermal management system, comprising:

the system comprises a refrigerant circuit, a host machine, a condenser and a compressor are arranged on the refrigerant circuit, wherein the host machine comprises an evaporative condenser and a wind heater;

the motor, the battery, the water heater and the water pump are arranged on the water circulation loop; and

the switching valve group is used for connecting the refrigerant loop and the water circulation loop and comprises at least one four-way valve and a switching valve;

wherein the switching valve block adjusts a medium flow path in the refrigerant circuit and the water circulation circuit by controlling an open-closed state of a plurality of outlets.

Optionally, the host includes an evaporative condenser, a fan heater and a blower, and the evaporative condenser is a liquid storage evaporative condenser.

Optionally, the switching valve group comprises a first four-way valve, a second four-way valve and a switching valve.

Optionally, the first four-way valve includes a plurality of outlets and the second four-way valve includes a plurality of outlets.

Optionally, the water pump includes a battery water pump and a motor water pump, wherein one end of the battery water pump is connected to the battery, and the other end of the battery water pump is connected to the second four-way valve.

Optionally, one end of the motor water pump is connected to the first motor through a power manager, and the other end of the motor water pump is connected to the radiator.

Optionally, the water circulation loop further comprises an expansion kettle, one end of the expansion kettle is connected between the second four-way valve and the battery water pump, and the other end of the expansion kettle is connected between the first four-way valve and the water heater.

Optionally, the refrigerant circuit further comprises a switching valve, and the switching valve is connected in parallel with the compressor.

Based on the same concept, the application also provides a control method of the vehicle thermal management system, and the control method of the vehicle thermal management system comprises the following steps:

adjusting the switching valve group according to the working state of the vehicle; and

and adjusting medium circulation paths in the refrigerant circuit and the water circulation circuit according to the opening and closing state of the outlet of the switching valve group.

Based on the same concept, the present application also proposes a vehicle comprising:

a vehicle body; and

a thermal management module, the thermal management module comprising:

a connection base;

a refrigerant circuit provided at one side of the connection base;

the water circulation loop is arranged on one side, away from the refrigerant loop, of the connecting base; and

a switching valve block for connecting the refrigerant circuit and the water circulation circuit;

wherein the thermal management module is disposed on the body.

To sum up, this application uses stock solution formula evaporative condenser in the host computer, utilizes air heater boosting, has reduced air conditioner host computer's size and weight under the condition that satisfies the functional requirement. The four-way valve and the three-way valve form the switching valve group, and different components form the heat management integrated module, so that the number of pipelines is reduced. And meanwhile, according to the opening and closing states of different outlets in the switching valve group, the circulation paths of the medium in the refrigerant loop and the water circulation loop are controlled. The vehicle thermal management system, the control method and the vehicle can realize efficient switching of thermal management working states of the passenger compartment and the battery pack, and optimize the structure of the vehicle thermal management system.

Drawings

FIG. 1 is a schematic structural diagram of a thermal management system according to an embodiment of the present application;

FIG. 2 is a first schematic view of a switching valve block outlet in one embodiment of the present application;

FIG. 3 is a second schematic view of an outlet of a switching valve assembly according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of a switching valve set according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a switching valve set mode of the present application in one embodiment;

FIG. 6 is a schematic view of a second switching valve group mode in one embodiment of the present application;

FIG. 7 is a schematic diagram of a switching valve set mode three in one embodiment of the present application;

FIG. 8 is a diagram illustrating a fourth mode of switching the valve stack in accordance with an embodiment of the present application;

FIG. 9 is a schematic illustration of a switching valve set mode five of the present application in one embodiment;

FIG. 10 is a schematic illustration of a switching valve set mode six of the present application in one embodiment;

FIG. 11 is a schematic diagram of a first cycle of the thermal management system of an embodiment of the present application;

FIG. 12 is a functional block diagram of a first cycle of the present application in one embodiment;

FIG. 13 is a schematic diagram of the first cycle functional combination switch state in one embodiment of the present application;

FIG. 14 is a first schematic diagram illustrating a second cycle of the thermal management system of an embodiment of the present application;

FIG. 15 is a second cycle schematic diagram of the thermal management system of the present application in one embodiment;

FIG. 16 is a functional block diagram of a second cycle of the present application in one embodiment;

FIG. 17 is a schematic diagram of the state of the second cycle functional combination switch in one embodiment of the present application;

FIG. 18 is a first schematic diagram illustrating a third cycle of the thermal management system of the present application in one embodiment;

FIG. 19 is a schematic diagram of a second cycle of the thermal management system of the present application in an embodiment;

FIG. 20 is a third schematic diagram illustrating a third cycle of the thermal management system of an embodiment of the present application;

FIG. 21 is a fourth schematic diagram illustrating a third cycle of the thermal management system of the present application in an embodiment;

FIG. 22 is a functional block diagram of a third cycle of the present application in one embodiment;

FIG. 23 is a third embodiment of the present application showing the states of the combination switches for the third cycle function;

FIG. 24 is a first schematic diagram illustrating a fourth cycle of the thermal management system of the present application in an embodiment;

FIG. 25 is a schematic diagram of a fourth cycle of the thermal management system of an embodiment of the present application;

FIG. 26 is a schematic diagram of a fourth cycle of the thermal management system of an embodiment of the present application;

FIG. 27 is a fourth schematic diagram illustrating a fourth cycle of the thermal management system of the present application in an embodiment;

FIG. 28 is a schematic diagram of a fifth cycle of the thermal management system of an embodiment of the present application;

FIG. 29 is a functional block diagram of a fourth cycle of the present application in an embodiment;

FIG. 30 is a schematic flow chart illustrating a control method for a vehicle thermal management system according to an embodiment of the present application;

FIG. 31 is a schematic diagram of a thermal management integration module according to an embodiment of the present application.

Description of reference numerals:

1 a first four-way valve;

2, a water heater;

3, a battery;

4, a battery water pump;

5 a second four-way valve;

6, a first air removal valve;

7, a motor water pump;

8 switching valves;

9, an expansion kettle;

10 a second air removal valve;

11 a heat sink;

12 a cooling fan;

13 a power manager;

14 a first motor;

15 a second motor;

16 heat exchangers;

17 a second expansion valve;

18 a first three-way valve;

19 a first expansion valve;

20, a host;

21 a condenser;

22 an on-off valve;

23 a second three-way valve;

24 a third three-way valve;

25 a compressor;

26 an evaporative condenser;

27 air heater;

a blower 28;

29 a first outlet;

30 a second outlet;

31 a third outlet;

32 a fourth outlet;

33 a fifth outlet;

34 a sixth outlet;

35 a seventh outlet;

36 eighth outlet;

37 a ninth outlet;

38 switching valve group;

39 a thermal management module;

40 are attached to the base.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a thermal management system according to an embodiment of the present application. The present application is directed to a vehicle thermal management system that, in one embodiment of the present application, may include, for example, a refrigerant circuit, a water circulation circuit, and a transfer valve block 38. In an embodiment of the present application, the main machine 20, the condenser 21 and the compressor 25 may be disposed on the refrigerant circuit, wherein the main machine 20 may include an evaporative condenser 26, a heater 27 and a blower 28. In one embodiment of the present application, the evaporative condenser 26 may be, for example, a liquid storage evaporative condenser. The liquid storage type evaporative condenser integrates the evaporator and the built-in condenser, and realizes switching of heating and cooling modes by reversing the compressor 25. In the present embodiment, the condenser 21 is an air condenser. In another embodiment of the present application, the condenser 21 may also be a liquid-storage water-cooled condenser. The water-cooled condenser can heat the battery and improve the performance of the low-temperature battery.

Referring to fig. 1, in an embodiment of the present application, a compressor 25 in a refrigerant circuit may be connected to a third three-way valve 24, a condenser 21, a first three-way valve 18, a second expansion valve 17, a heat exchanger 16, and a second three-way valve 23 in sequence. One end of the on-off valve 22 may be connected to the second three-way valve 23, and the other end of the on-off valve 22 may be connected between the third three-way valve 24 and the condenser 21. In an embodiment of the present application, one end of the main machine 20 may be connected to the second three-way valve 23, and the other end of the main machine 20 may be connected between the condenser 21 and the first three-way valve 18 through the first expansion valve 19. In another embodiment of the present application, the host 20 may also be connected to a third three-way valve 24. In another embodiment of the present application, the host 20 may also be connected to the first three-way valve 18.

Referring to fig. 1, in an embodiment of the present application, the first motor 14, the second motor 15, the battery 3, the battery water pump 4, and the motor water pump 7 may be disposed on the water circulation loop. In one embodiment of the present application, the refrigerant circuit and the water circulation circuit may be connected by a switching valve block 38, and the switching valve block 38 may include at least one four-way valve and a switching valve. In an embodiment of the present application, the switching valve block 38 may include, for example, a first four-way valve 1, a second four-way valve 5, and a switching valve 8.

Referring to fig. 1-4, fig. 2 is a first schematic view of a switching valve set outlet in an embodiment of the present application, fig. 3 is a second schematic view of the switching valve set outlet in an embodiment of the present application, and fig. 4 is a structural schematic view of the switching valve set in an embodiment of the present application. In an embodiment of the present application, the second motor 15 may be connected to the first motor 14, the power manager 13, the motor water pump 7, the radiator 11, and the switching valve 8 in sequence on the water circulation loop. One end of the battery 3 can be connected with the battery water pump 4, and the other end of the battery 3 can be connected with the water heater 2. The first four-way valve 1 may include a plurality of outlets and the second four-way valve 5 may include a plurality of outlets. In an embodiment of the present application, the first four-way valve 1 may include a first outlet 29, a second outlet 30, a third outlet 31, and a fourth outlet 32, the second four-way valve 5 may include a fifth outlet 33, a sixth outlet 34, and a seventh outlet 35, and the switching valve 8 may include an eighth outlet 36 and a ninth outlet 37. The first outlet 29 is connected to the second motor 15 and the second outlet 30 is connected to the heat exchanger 16. The third outlet 31 is connected to the seventh outlet 35 and the fourth outlet 32 is connected to the water heater 2. The fifth outlet 33 is connected to the heat exchanger 16, the sixth outlet 34 is connected to the battery water pump 4, and the eighth outlet 36 is connected between the motor water pump 7 and the radiator 11. The ninth outlet 37 is connected to the heat sink 11, and the diffusion fan 12 may be disposed on the heat sink 11. The switching valve block 38 can adjust the medium flow path in the refrigerant circuit and the water circulation circuit by controlling the open-closed state of the plurality of outlets.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a switching valve set mode according to an embodiment of the present application. In an embodiment of the present application, the operating state of the switching valve set 38 may be mode one. The first outlet 29 communicates with the third outlet 31 and the second outlet 30 communicates with the fourth outlet 32. The fifth outlet 33 and the sixth outlet 34 are in communication, and the seventh outlet 35 and the ninth outlet 37 are in communication.

Referring to fig. 6, fig. 6 is a schematic diagram illustrating a second mode of switching a valve group according to an embodiment of the present application. In an embodiment of the present application, the operation state of the switching valve set 38 can be mode two. The first outlet 29 communicates with the third outlet 31 and the second outlet 30 communicates with the fourth outlet 32. The fifth outlet 33 communicates with the sixth outlet 34, and the seventh outlet 35 communicates with the eighth outlet 36.

Referring to fig. 7, fig. 7 is a schematic diagram illustrating a switching valve set mode according to an embodiment of the present application. In an embodiment of the present application, the operation state of the switching valve set 38 may be mode three. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 communicates with the eighth outlet 36, and the seventh outlet 35 communicates with the sixth outlet 34.

Referring to fig. 8, fig. 8 is a diagram illustrating a switching valve set mode in an embodiment of the present application. In an embodiment of the present application, the operating state of the switching valve set 38 may be mode four. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 communicates with the sixth outlet 34, and the seventh outlet 35 communicates with the eighth outlet 36.

Referring to fig. 9, fig. 9 is a schematic diagram illustrating a switching valve set mode in an embodiment of the present application. In an embodiment of the present application, the operating state of the switching valve set 38 may be mode five. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 and the sixth outlet 34 are in communication, and the seventh outlet 35 and the ninth outlet 37 are in communication.

Referring to fig. 10, fig. 10 is a schematic diagram illustrating a switching valve set mode six according to an embodiment of the present disclosure. In an embodiment of the present application, the operating state of the switching valve set 38 may be mode six. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 and the ninth outlet 37 are communicated, and the seventh outlet 35 and the sixth outlet 34 are communicated.

Referring to fig. 1, in an embodiment of the present application, the water circulation circuit may further include a first air removal valve 6, a second air removal valve 10, and an expansion tank 9. One end of the expansion kettle 9 can be connected between the second four-way valve 5 and the battery water pump 4, and the other end of the expansion kettle 9 can be connected between the first four-way valve 1 and the water heater 2. In another embodiment of the present application, the inlet and outlet ends of the expansion tank 9 may also be connected between the electric motor pump 7 and the radiator 11.

Referring to fig. 11, fig. 11 is a schematic diagram illustrating a first cycle of a thermal management system according to an embodiment of the present application. In an embodiment of the present application, the vehicle thermal management system may be a first recirculation loop. In one embodiment of the present application, the switching valve block 38 may be in mode one. The first outlet 29 communicates with the third outlet 31 and the second outlet 30 communicates with the fourth outlet 32. The fifth outlet 33 and the sixth outlet 34 are in communication, and the seventh outlet 35 and the ninth outlet 37 are in communication. The battery 3 is communicated with the heat exchanger 16 through the first four-way valve 1 and the second four-way valve 5, and the battery 3 is communicated with the first motor 14 and the second motor 15 through the first four-way valve 1, the second four-way valve 5 and the conversion valve 8. In one embodiment of the present application, the outlet end of the compressor 25 is connected to the inlet end of the condenser 21 by a third three-way valve 24. The outlet end of the condenser 21 is connected to a first expansion valve 19, and the first expansion valve 19 is connected to an evaporative condenser 26. The evaporative condenser 26 is connected to the inlet side of the compressor 25 by a second three-way valve 23. The outlet end of the condenser 21 is connected to a second expansion valve 17 via a first three-way valve 18, and the second expansion valve 17 communicates with the heat exchanger 16. The heat exchanger 16 is connected to the inlet side of the compressor 25 by a second three-way valve 23.

Referring to fig. 11, in an embodiment of the present application, the refrigerant output from the compressor 25 flows into the condenser 21, and a portion of the high-pressure refrigerant flowing through the condenser 21 flows into the evaporative condenser 26 through the first expansion valve 19. Part of the high-pressure refrigerant flowing through the condenser 21 passes through the heat exchanger 16 via the second expansion valve 17, flows into the air intake of the compressor 25 via the heat exchanger 16 and the evaporative condenser 26. In the present embodiment, the evaporative condenser 26 may be a liquid storage evaporative condenser, and the passenger compartment is cooled by absorbing air heat through the evaporative condenser 26. In this embodiment, one end of the radiator 11 may be connected to the motor-pump 7, and the other end of the radiator 11 may pass through the second four-way valve 5. In an embodiment of the present application, the condenser 21 may also be an air condenser. In another embodiment of the present application, the condenser 21 may also be a water-cooled condenser. The water-cooled condenser can heat the battery at low temperature, and the low-temperature performance and the low-temperature endurance capacity of the battery are improved.

Referring to fig. 12, fig. 12 is a schematic diagram of a first cycle function combination according to an embodiment of the present application. In some embodiments of the present application, the first cycle may be a refrigeration cycle in a high temperature environment. When the ambient temperature is greater than, for example, 25 ℃, the passenger compartment cooling, the passenger compartment dehumidification, and the battery cooling are performed through the first cycle.

Referring to fig. 13 and 11, fig. 12 is a schematic diagram illustrating states of a first cycle function combination switch according to an embodiment of the present application. In some embodiments of the present application, cooling, dehumidification and battery cooling of the passenger compartment may be performed separately, or both cooling and dehumidification may be performed simultaneously. In other embodiments of the present application, battery cooling and passenger compartment cooling may be performed simultaneously, or battery cooling and passenger compartment dehumidification may be performed simultaneously. The combination of functions is realized by controlling the opening and closing of the first expansion valve 19 and the second expansion valve 17.

Referring to fig. 13 and 11, in an embodiment of the present application, the first expansion valve 19 is opened while the second expansion valve 17 is closed, and the refrigerant output from the compressor 25 flows into the condenser 21. The high-pressure refrigerant flowing through the condenser 21 flows into the evaporative condenser 26 through the first expansion valve 19, and flows into the air inlet of the compressor 25 through the evaporative condenser 26, and the refrigerant circulates in the refrigerant circuit. According to the ambient temperature and the temperature requirement of the user, the rotating speed of the compressor 25 and the opening degree of the first expansion valve 19 are controlled so as to realize the functions of cooling, dehumidifying or synchronously cooling and dehumidifying the passenger compartment.

Referring to fig. 13 and 11, in an embodiment of the present application, the first expansion valve 19 is opened, and the second expansion valve 17 is opened at the same time. The refrigerant discharged from the compressor 25 flows into the condenser 21, and a part of the high-pressure refrigerant flowing through the condenser 21 flows into the evaporative condenser 26 through the first expansion valve 19. Part of the high-pressure refrigerant flowing through the condenser 21 passes through the heat exchanger 16 via the second expansion valve 17, flows into the air intake of the compressor 25 via the heat exchanger 16 and the evaporative condenser 26. At the moment, the water circulation loop is communicated with the refrigerant loop, and the duty ratios of the battery water pump 4 and the motor water pump 7 are adjusted according to the water temperature. The duty cycle of the second expansion valve 17 is adjusted according to the required cooling level of the battery 3, so that battery cooling and passenger compartment cooling are achieved synchronously. In another embodiment of the present application, battery cooling and passenger compartment dehumidification may also be achieved simultaneously using the above method.

Referring to fig. 13 and 11, in an embodiment of the present application, the first expansion valve 19 is closed, and the second expansion valve 17 is opened. The refrigerant discharged from the compressor 25 flows into the condenser 21, and the high-pressure refrigerant flows into the heat exchanger 16 through the second expansion valve 17, and the water circulation circuit is turned on. The duty ratios of the battery water pump 4 and the motor water pump 7 are adjusted according to the water temperature and the battery cooling level, and the rotating speed of the cooling fan 12 is adjusted at the same time, so that the batteries are cooled independently.

Referring to fig. 14-15, in one embodiment of the present application, the vehicle thermal management system may be a second loop. The outlet of the compressor 25 communicates with the inlet of the evaporative condenser 26, and the outlet of the evaporative condenser 26 communicates with the first expansion valve 19 and the second expansion valve 17. The first expansion valve 19 communicates with the inlet of the condenser 21, and the second expansion valve 17 communicates with the heat exchanger 16.

Referring to fig. 14, fig. 14 is a first schematic diagram of a second cycle of the thermal management system according to an embodiment of the present application. In one embodiment of the present application, the switching valve block 38 may be in mode two. The first outlet 29 communicates with the third outlet 31 and the second outlet 30 communicates with the fourth outlet 32. The fifth outlet 33 communicates with the sixth outlet 34, and the seventh outlet 35 communicates with the eighth outlet 36. The outlet of the condenser 21 communicates with the inlet of the compressor 25, and the heat exchanger 16 communicates with the inlet of the compressor 25. The refrigerant output from the compressor 25 flows into the evaporative condenser 26 and continues to flow into the first expansion valve 19 and the second expansion valve 17. The refrigerant flows from the first expansion valve 19 into the condenser 21, and the refrigerant flows from the second expansion valve 17 into the heat exchanger 16, and flows into the compressor 25 intake port from the heat exchanger 16 and the condenser 21. The rotation speed of the compressor 25 and the opening degree of the first expansion valve 19 are controlled according to the ambient temperature and the temperature demand of the user. The evaporative condenser 26 acts as a condenser, heating the air and heating the passenger compartment. When the battery 3 puts a demand for cooling, the second expansion valve 17 is opened to provide cooling to the battery 3 according to the battery cooling level. In an embodiment of the present application, the condenser 21 may also be an air condenser. In another embodiment of the present application, the condenser 21 may also be a water-cooled condenser. The water-cooled condenser can heat the battery at low temperature, and the low-temperature performance and the low-temperature endurance capacity of the battery are improved.

Referring to fig. 15, fig. 15 is a second cycle schematic diagram of the thermal management system according to the present application in an embodiment. In an embodiment of the present application, the switching valve block 38 may be in mode three. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 communicates with the eighth outlet 36, and the seventh outlet 35 communicates with the sixth outlet 34. The combination of functions is realized by controlling the opening and closing of the first expansion valve 19 and the second expansion valve 17. When the battery demands heating, the water heater 2 is turned on to provide heating for the battery.

Referring to fig. 16, fig. 16 is a schematic diagram of a second functional combination of cycles in an embodiment of the present application. In an embodiment of the present application, the second cycle may be a heating cycle in a low temperature environment, providing passenger compartment heating and battery heating functions, or cooling the battery when the ambient temperature is less than, for example, 15 ℃.

Referring to fig. 17, fig. 17 is a schematic diagram illustrating states of a second cycle function combination switch according to an embodiment of the present application. In some embodiments of the present application, passenger compartment heating, battery heating, and battery cooling may be performed separately or simultaneously. In other embodiments of the present application, battery cooling and passenger compartment heating may also be performed simultaneously. By controlling the opening and closing of the first expansion valve 19 and the second expansion valve 17, and the opening and closing of the water heater 2 and the air heater 27, the combination of functions can be realized.

Referring to fig. 17 and 14, in an embodiment of the present application, the first expansion valve 19 and the second expansion valve 17 are opened. The rotation speed of the compressor 25 and the opening degree of the first expansion valve 19 are controlled according to the ambient temperature and the temperature demand of the user. The evaporative condenser 26 functions as a condenser to heat the air to effect passenger compartment heating. In another embodiment of the present application, it is also possible to open the first expansion valve 19 and close the second expansion valve 17. At this time, the evaporative condenser 26 is communicated with the main machine 20 through the first expansion valve 19 to heat the air, so as to heat the passenger compartment. In another embodiment of the present application, it is also possible to open the second expansion valve 17 and turn off the cooling fan 12. The passenger compartment heating is achieved by controlling the second expansion valve 17.

Referring to fig. 17 and 15, in an embodiment of the present application, the first expansion valve 19 and the second expansion valve 17 are opened. According to the ambient temperature and the temperature demand of the user, to control the rotation speed of the compressor 25 and the opening degrees of the first and

second expansion valves

19 and 17. The evaporative condenser 26 acts as a condenser, heating the air and heating the passenger compartment. In another embodiment of the present application, the first expansion valve 19 may be opened and the second expansion valve 17 may be closed. The opening degree of the first expansion valve 19 is adjusted to achieve heating of the passenger compartment. In another embodiment of the present application, it is also possible to open the second expansion valve 17 and turn off the cooling fan 12. The heater 27 is turned on to heat the passenger compartment.

Referring to fig. 17 and 15, in an embodiment of the present application, the water heater 2 may also be turned on when the passenger compartment is heated, so as to realize the passenger compartment heating and the battery heating simultaneously. In another embodiment of the present application, the battery heating function may also be separately implemented by turning on the water heater 2.

Referring to fig. 17 and 14, in an embodiment of the present application, the second expansion valve 17 may be opened. The opening degree of the second expansion valve 17 is adjusted according to the cooling level required for the battery to achieve the individual cooling of the battery 3.

Referring to fig. 17 and 14, in an embodiment of the present application, the first expansion valve 19 and the second expansion valve 17 may also be opened. The rotational speed of the compressor 25 and the opening degree of the first expansion valve 19 are controlled, and the evaporative condenser 26 heats air to achieve passenger compartment heating. The opening degree of the second expansion valve 17 is adjusted according to the cooling level required for the battery to achieve the individual cooling of the battery 3. In other embodiments of the present application, the air heater 27 may be turned on or off as needed for temperature regulation. In an embodiment of the present application, the opening degrees of the first expansion valve 19 and the second expansion valve 17 may be controlled according to the battery demand and the water temperature, and the duty ratios of the battery water pump 4 and the motor water pump 7 may be adjusted, and the rotation speed of the cooling fan 12 may also be adjusted according to the cooling demand.

Referring to fig. 18-21, in an embodiment of the present application, the vehicle thermal management system may be a third loop. The outlet of the compressor 25 communicates with the condenser 21, and the outlet of the condenser 21 communicates with the first expansion valve 19 and the second expansion valve 17. The first expansion valve 19 communicates with an inlet of the evaporative condenser 26, and the second expansion valve 17 communicates with the heat exchanger 16. The outlet of the evaporative condenser 26 is in communication with the inlet of the compressor 25, and the heat exchanger 16 is in communication with the inlet of the compressor 25. The refrigerant output from the compressor 25 flows into the condenser 21, and the high-pressure refrigerant flowing from the condenser 21 flows into the first expansion valve 19 and the second expansion valve 17. The refrigerant flows from the first expansion valve 19 into the evaporative condenser 26, flows from the second expansion valve 17 into the heat exchanger 16, and finally flows into the compressor 25 intake port through the heat exchanger 16 and the condenser 21.

Referring to fig. 18, fig. 18 is a first schematic diagram of a third cycle of a thermal management system according to an embodiment of the present application. In one embodiment of the present application, the switching valve block 38 may be in mode one. The first outlet 29 communicates with the third outlet 31 and the second outlet 30 communicates with the fourth outlet 32. The fifth outlet 33 and the sixth outlet 34 are in communication, and the seventh outlet 35 and the ninth outlet 37 are in communication. The refrigerant output from the compressor 25 flows into the condenser 21, and the high-pressure refrigerant flowing from the condenser 21 flows into the first expansion valve 19 and the second expansion valve 17. The refrigerant flows from the first expansion valve 19 into the evaporative condenser 26, flows from the second expansion valve 17 into the heat exchanger 16, and finally flows into the compressor 25 intake port through the heat exchanger 16 and the condenser 21. The rotation speed of the compressor 25 and the opening degrees of the first and

second expansion valves

19 and 17 are controlled according to the ambient temperature and the user temperature demand. One end of the radiator 11 can be connected with the motor water pump 7, and the other end of the radiator 11 can be connected with the conversion valve 8.

Referring to fig. 19, fig. 19 is a second schematic diagram of a third cycle of a thermal management system according to an embodiment of the present application. In one embodiment of the present application, the switching valve block 38 may be in mode two. The first outlet 29 communicates with the third outlet 31 and the second outlet 30 communicates with the fourth outlet 32. The fifth outlet 33 communicates with the sixth outlet 34, and the seventh outlet 35 communicates with the eighth outlet 36. The refrigerant output from the compressor 25 flows into the condenser 21, and the high-pressure refrigerant flowing from the condenser 21 flows into the first expansion valve 19 and the second expansion valve 17. The refrigerant flows from the first expansion valve 19 into the evaporative condenser 26, flows from the second expansion valve 17 into the heat exchanger 16, and finally flows into the compressor 25 intake port through the heat exchanger 16 and the condenser 21. The rotation speed of the compressor 25 and the opening degrees of the first and

second expansion valves

19 and 17 are controlled according to the ambient temperature and the user temperature demand. In this embodiment, the motor water pump 7 is directly connected to the second four-way valve 5 through the switching valve 8.

Referring to fig. 20, fig. 20 is a third schematic diagram of a third cycle of a thermal management system according to an embodiment of the present application. In an embodiment of the present application, the switching valve block 38 may be in mode three. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 communicates with the eighth outlet 36, and the seventh outlet 35 communicates with the sixth outlet 34. When the water temperature of the motor meets the requirement, the heat exchanger 16 absorbs the heat of the motor loop.

Referring to fig. 21, fig. 21 is a fourth schematic diagram of a third cycle of the thermal management system according to an embodiment of the present application. In an embodiment of the present application, the switching valve block 38 may be in mode four. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 communicates with the sixth outlet 34, and the seventh outlet 35 communicates with the eighth outlet 36. In this embodiment, the motor water pump 7 is directly connected to the second four-way valve 5 through the switching valve 8. The heat exchanger 16 absorbs heat from the motor and battery circuits when the motor and battery heat is sufficient. The first expansion valve 19 controls the opening degree according to the dehumidification demand, the water temperature, and the like, and the function combination is realized by controlling the opening and closing of the first expansion valve 19 and the second expansion valve 17. When the battery 3 puts a demand for heating, the water heater 2 is turned on to provide heating for the battery 3.

Referring to fig. 22, fig. 22 is a schematic diagram of a third cycle function combination in an embodiment of the present application. In an embodiment of the present application, the third cycle may be a deicing cycle in a low temperature environment. When the ambient temperature is less than 15 ℃, for example, the heat exchanger is used for deicing the outdoor heat exchanger, and the normal work of the heat management system is ensured.

Referring to fig. 23, fig. 23 is a schematic diagram illustrating a state of a third cycle function combination switch according to an embodiment of the present application. In some embodiments of the present application, the deicing specialty may be performed separately. Deicing and battery heating, or both, may also be performed simultaneously.

Referring to fig. 23 and 22, in an embodiment of the present application, the second expansion valve 17 may be opened, and the first expansion valve 19 may be closed. The condenser 21 communicates with the heat exchanger 16 through the second expansion valve 17, and the heat exchanger 16 is connected to the compressor 25. Evaporative condenser 26 acts as a condenser, heating the air to achieve the de-icing function.

Referring to fig. 23 and 22, in another embodiment of the present application, it is also possible to open the first expansion valve 19 and close the second expansion valve 17. At this time, the evaporative condenser 26 is connected to the main unit 20 through the first expansion valve 19 to heat the air, so as to perform the deicing function.

Referring to fig. 23 and 22, in another embodiment of the present application, the first expansion valve 19 and the second expansion valve 17 may also be opened. The rotation speed of the compressor 25 and the opening degree of the first expansion valve 19 are controlled according to the ambient temperature and the temperature demand of the user. The evaporative condenser 26 acts as a condenser to heat the air and perform a de-icing function.

Referring to fig. 23 and 22, in an embodiment of the present application, the second expansion valve 17 may be opened and the first expansion valve 19 may be closed, and the water heater 2 may be opened. The condenser 21 communicates with the heat exchanger 16 through the second expansion valve 17, and the heat exchanger 16 is connected to the compressor 25. Evaporative condenser 26 acts as a condenser, heating the air to achieve the de-icing function. The water heater 2 heats the battery to synchronously realize the functions of deicing and heating the battery.

Referring to fig. 23 and 22, in another embodiment of the present application, it is also possible to open the first expansion valve 19 and close the second expansion valve 17, and open the water heater 2. At this time, the evaporative condenser 26 is connected to the main unit 20 through the first expansion valve 19 to heat the air, so as to perform the deicing function. The water heater 2 heats the battery to synchronously realize the functions of deicing and heating the battery.

Referring to fig. 23 and 22, in another embodiment of the present application, the first expansion valve 19 and the second expansion valve 17 may be opened, and the water heater 2 may be opened. So as to synchronously realize deicing and battery heating. The rotation speed of the compressor 25 and the opening degree of the first expansion valve 19 are controlled according to the ambient temperature and the temperature demand of the user. The evaporative condenser 26 acts as a condenser to heat the air and perform a de-icing function. The water heater 2 heats the battery to synchronously realize the functions of deicing and heating the battery.

Referring to fig. 23, in another embodiment of the present application, the second expansion valve 17 may be opened and the first expansion valve 19 may be closed. The refrigerant discharged from the compressor 25 flows into the condenser 21, and the high-pressure refrigerant flows into the heat exchanger 16 through the second expansion valve 17, and the water circulation circuit is turned on. And duty ratios of the battery water pump 4 and the motor water pump 7 are adjusted according to the water temperature and the battery cooling grade, and the rotating speed of the cooling fan 12 is adjusted simultaneously, so that the deicing and the battery cooling are synchronously realized.

Referring to fig. 23, in another embodiment of the present application, the first expansion valve 19 and the second expansion valve 17 may also be opened. The refrigerant discharged from the compressor 25 flows into the condenser 21, and a part of the high-pressure refrigerant flowing through the condenser 21 flows into the evaporative condenser 26 through the first expansion valve 19. Part of the high-pressure refrigerant flowing through the condenser 21 passes through the heat exchanger 16 via the second expansion valve 17, flows into the air intake of the compressor 25 via the heat exchanger 16 and the evaporative condenser 26. At the moment, the water circulation loop is communicated with the refrigerant loop, and the duty ratios of the battery water pump 4 and the motor water pump 7 are adjusted according to the water temperature. The duty cycle of the second expansion valve 17 is adjusted according to the required cooling level of the battery 3 to achieve simultaneous de-icing and battery cooling. In an embodiment of the present application, the condenser 21 may also be an air condenser. In another embodiment of the present application, the condenser 21 may also be a water-cooled condenser. The water-cooled condenser can heat the battery at low temperature, and the low-temperature performance and the low-temperature endurance capacity of the battery are improved.

Referring to fig. 24-28, in an embodiment of the present application, the vehicle thermal management system may be a fourth cycle. The fourth cycle loop is a hybrid cycle, which in some embodiments of the present application may include, for example, a heating and dehumidification mode, a motor-battery heating mode, a combined motor and battery heat dissipation mode, or other modes.

Referring to fig. 24, fig. 24 is a first schematic diagram of a fourth cycle of the thermal management system according to an embodiment of the present application. In one embodiment of the present application, the switching valve block 38 may be in mode one. The first outlet 29 communicates with the third outlet 31 and the second outlet 30 communicates with the fourth outlet 32. The fifth outlet 33 and the sixth outlet 34 are in communication, and the seventh outlet 35 and the ninth outlet 37 are in communication. The compressor 25 communicates with the condenser 21, the outlet of the condenser 21 communicates with the first expansion valve 19, and the first expansion valve 19 communicates with the evaporative condenser 26. One end of the change-over valve 8 is connected with the radiator 11, and the other end of the change-over valve 8 is connected with the battery water pump through a second four-way valve. The evaporative condenser 26 functions as an evaporator to absorb heat and moisture from the air to achieve dehumidification. At this time, the heat of the battery 3 can be absorbed to cool the battery 3. The heating power of the air heater 27 is adjusted according to the temperature of the passenger compartment according to the heating demand of the air heater 27. The functions of heating and dehumidifying the passenger compartment and cooling the battery are realized by adjusting the opening and closing of the switching valve group 38 and the first expansion valve 19 and the second expansion valve 17. In an embodiment of the present application, the condenser 21 may also be an air condenser. In another embodiment of the present application, the condenser 21 may also be a water-cooled condenser. The water-cooled condenser can heat the battery at low temperature, and the low-temperature performance and the low-temperature endurance capacity of the battery are improved.

Referring to fig. 25, fig. 25 is a second schematic diagram of a fourth cycle of the thermal management system according to the present application in an embodiment. In an embodiment of the present application, the switching valve block 38 may be in mode three. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 communicates with the eighth outlet 36, and the seventh outlet 35 communicates with the sixth outlet 34. The compressor 25 communicates with the condenser 21, the outlet of the condenser 21 communicates with the first expansion valve 19, and the first expansion valve 19 communicates with the evaporative condenser 26. One end of the conversion valve 8 is connected with the motor water pump 7, and the other end of the conversion valve 8 is connected with the battery water pump through the second four-way valve. The evaporative condenser 26 functions as an evaporator to absorb heat and moisture in the air, thereby achieving a dehumidification effect. At the moment, the heat of the motor can be absorbed simultaneously, and the motor is cooled. The heating power of the air heater 27 can be adjusted according to the temperature of the passenger compartment according to the heating demand of the air heater 27. The heating and dehumidifying functions of the passenger compartment are realized by adjusting the opening and closing of the switching valve group 38 and the first and

second expansion valves

19 and 17.

Referring to fig. 26, fig. 26 is a third schematic diagram of a fourth cycle of the thermal management system according to the present application in an embodiment. In an embodiment of the present application, the switching valve block 38 may be in mode six. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 and the ninth outlet 37 are communicated, and the seventh outlet 35 and the sixth outlet 34 are communicated. One end of the switch valve 8 is connected to the radiator 11, and the other end of the switch valve 8 is connected to the second four-way valve. The compressor 25 communicates with the condenser 21, the outlet of the condenser 21 communicates with the first expansion valve 19, and the first expansion valve 19 communicates with the evaporative condenser 26. The evaporative condenser 26 functions as an evaporator to absorb heat and moisture in the air, thereby achieving a dehumidification effect. At the same time, the heat of the motor can be absorbed, so that the cooling of the motor is realized. The air heater 27 has a heating demand, and the heating power of the air heater 27 can be adjusted according to the temperature of the passenger compartment. The heating and dehumidifying functions of the passenger compartment are realized by adjusting the opening and closing of the switching valve group 38 and the first and

second expansion valves

19 and 17.

Referring to fig. 24-26, in some embodiments of the present application, the rotation speed of the compressor 25 and the opening degrees of the first expansion valve 19 and the second expansion valve 17 may be controlled according to the ambient temperature and the temperature demand of the user. The evaporative condenser 26 functions as an evaporator to absorb heat from the air. When the battery 3 needs cooling, the second expansion valve 17 is opened to provide cooling for the battery 3. The operation mode of the switching valve set 38 may be mode one, mode three or mode six, and when the switching valve set 38 is in the operation mode one, the heat exchanger 16 absorbs heat from the battery circuit. When the water temperature of the motor meets the requirement, the switching valve set 38 can be adjusted to the third operating mode or the sixth operating mode, so that the heat exchanger 16 can absorb the heat of the motor loop. The first expansion valve 19 can control the opening degree according to the dehumidification and the water temperature demand, and the function combination is realized by controlling the opening and closing of the first expansion valve 19 and the second expansion valve 17. When the battery 3 puts a demand for heating, the water heater 2 is turned on to achieve heating of the battery 3. The functions of heating and dehumidifying the passenger compartment and heating the battery are realized by adjusting the opening and closing of the switching valve group 38 and the first expansion valve 19 and the second expansion valve 17.

Referring to fig. 27, fig. 27 is a fourth schematic cycle view of the thermal management system according to an embodiment of the present application. In an embodiment of the present application, the switching valve block 38 may be in mode four. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 communicates with the sixth outlet 34, and the seventh outlet 35 communicates with the eighth outlet 36. One end of the conversion valve 8 is connected with the motor water pump 7, and the other end of the conversion valve 8 is connected with the battery water pump 4 through the second four-way valve 5. In an embodiment of the present application, the first motor 14, the second motor 15, the battery 3, the heat exchanger 16, the water heater 2, the battery water pump 4, and the motor water pump 7 may be connected in series in the same loop. The outlet of the second motor 15 is communicated with the inlet of the heat exchanger 16, the outlet of the heat exchanger 16 is communicated with the battery water pump 4, and the water heater 2 is communicated with the motor water pump 7. The heated water bypasses the heat sink 11 and enters the battery 3 to heat the battery. According to the temperature of the water entering the battery, different working modes of the switching valve group 38 and duty ratios of the battery 3 and the motor water pump 7 can be adjusted, and the functions of heating and dehumidifying the passenger compartment and heating the battery can be realized by adjusting the switching valve group 38 and opening and closing the first expansion valve 19 and the second expansion valve 17.

Referring to fig. 28, fig. 28 is a fifth schematic diagram of a fourth cycle of the thermal management system according to an embodiment of the present application. In an embodiment of the present application, the switching valve block 38 may be in mode five. The first outlet 29 communicates with the second outlet 30, and the third outlet 31 communicates with the fourth outlet 32. The fifth outlet 33 and the sixth outlet 34 are in communication, and the seventh outlet 35 and the ninth outlet 37 are in communication. One end of the switch valve 8 is connected to the radiator 11, and the other end of the switch valve 8 is connected to the second four-way valve. In an embodiment of the present application, the first motor 14, the second motor 15, the battery 3, the heat exchanger 16, the water heater 2, the battery water pump 4, and the motor water pump 7 may be connected in series in the same loop. The outlet of the second motor 15 is communicated with the inlet of the heat exchanger 16, the outlet of the heat exchanger 16 is communicated with the battery water pump 4, and the water heater 2 can be communicated with the radiator 11. The heat of the first motor 14, the second motor 15 and the battery 3 is dissipated through the radiator 11, and the working mode of the switching valve set 38 can be adjusted according to the temperature of the battery water. And adjusting the duty ratio of the battery 3 and the motor water pump 7 and the wind speed of the cooling fan 12 to realize the cooling of the battery.

Referring to fig. 29, fig. 29 is a functional combination diagram of a fourth cycle in an embodiment of the present application. In an embodiment of the present application, the fourth cycle may be a heating and cooling cycle. When the ambient temperature ranges from 15 ℃ to 25 ℃, for example, the heating and dehumidification device can be used for heating and dehumidifying the passenger compartment. In other embodiments of the present application, the heating and dehumidifying functions of the passenger compartment and the heating function of the battery can also be synchronously realized. In other embodiments of the present application, the heating and dehumidifying functions of the passenger compartment and the cooling function of the battery can be simultaneously realized.

Referring to fig. 30, fig. 30 shows an embodiment of the present application. Based on the same conception, the application also provides a control method of the vehicle thermal management system, and the vehicle thermal management system is used. In the present embodiment, the control method of the vehicle thermal management system may include the steps of:

s1, adjusting the switching valve group according to the working state of the vehicle; and

and S2, adjusting medium circulation paths in the refrigerant circuit and the water circulation circuit according to the opening and closing state of the outlet of the switching valve group.

Referring to fig. 31, fig. 31 is a schematic diagram of a thermal management integration module according to an embodiment of the present application. Based on the same concept, the present application also proposes a vehicle, which in this embodiment may comprise a vehicle body and a thermal management module 39. In an embodiment of the present application, the thermal management module 39 may further include a connection base 40, a refrigerant circuit, a water circulation circuit, and a switching valve block 38. The refrigerant circuit may be disposed at a side of the connection base 40, the water circulation circuit may be disposed at a side of the connection base 40 facing away from the refrigerant circuit, and the thermal management module may be disposed on the vehicle body.

Referring to fig. 31 and 1, in an embodiment of the present application, the compressor 25 in the refrigerant circuit may be connected to the third three-way valve 24, the condenser 21, the first three-way valve 18, the second expansion valve 17, the heat exchanger 16, and the second three-way valve 23 in sequence. One end of the on-off valve 22 may be connected to the second three-way valve 23, and the other end of the on-off valve 22 may be connected between the third three-way valve 24 and the condenser 21. In an embodiment of the present application, one end of the main machine 20 may be connected to the second three-way valve 23, and the other end of the main machine 20 may be connected between the condenser 21 and the first three-way valve 18 through the first expansion valve 19. In another embodiment of the present application, the host 20 may also be connected to a third three-way valve 24. In another embodiment of the present application, the host 20 may also be connected to the first three-way valve 18. In the present embodiment, the condenser 21 is an air condenser. In another embodiment of the present application, the condenser 21 may also be a liquid-storage water-cooled condenser. The water-cooled condenser can heat the battery and improve the performance of the low-temperature battery. In an embodiment of the present application, the condenser 21 may also be an air condenser. In another embodiment of the present application, the condenser 21 may also be a water-cooled condenser. The water-cooled condenser can heat the battery at low temperature, and the low-temperature performance and the low-temperature endurance capacity of the battery are improved.

Referring to fig. 31 and fig. 1, in an embodiment of the present application, the first motor 14, the second motor 15, the battery 3, the battery water pump 4, and the motor water pump 7 may be disposed on the water circulation loop. In one embodiment of the present application, the refrigerant circuit and the water circulation circuit may be connected by a switching valve block 38, and the switching valve block 38 may include at least one four-way valve and a switching valve. In an embodiment of the present application, the switching valve block 38 may include, for example, a first four-way valve 1, a second four-way valve 5, and a switching valve 8.

Referring to fig. 31 and fig. 1-4, in an embodiment of the present application, the second motor 15 may be connected to the first motor 14, the power manager 13, the motor water pump 7, the radiator 11, and the switch valve 8 in sequence. One end of the battery 3 can be connected with the battery water pump 4, and the other end of the battery 3 can be connected with the water heater 2.

Referring to fig. 31 and fig. 1-4, in an embodiment of the present disclosure, the first four-way valve 1 may include a first outlet 29, a second outlet 30, a third outlet 31, and a fourth outlet 32, the second four-way valve 5 may include a fifth outlet 33, a sixth outlet 34, and a seventh outlet 35, and the switching valve 8 may include an eighth outlet 36 and a ninth outlet 37. The first outlet 29 is connected to the second motor 15 and the second outlet 30 is connected to the heat exchanger 16. The third outlet 31 is connected to the seventh outlet 35 and the fourth outlet 32 is connected to the water heater 2. The fifth outlet 33 is connected to the heat exchanger 16, the sixth outlet 34 is connected to the battery water pump 4, and the eighth outlet 36 is connected between the motor water pump 7 and the radiator 11. The ninth outlet 37 is connected to the heat sink 11, and the diffusion fan 12 may be disposed on the heat sink 11. The switching valve block 38 can adjust the medium flow path in the refrigerant circuit and the water circulation circuit by controlling the open-closed state of the plurality of outlets.

The above description is only a preferred embodiment of the present application and a description of the applied technical principle, and it should be understood by those skilled in the art that the scope of the present invention related to the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept, for example, the technical solutions formed by mutually replacing the above features with (but not limited to) technical features having similar functions disclosed in the present application.

Other technical features than those described in the specification are known to those skilled in the art, and are not described herein in detail in order to highlight the innovative features of the present invention.

Claims

1. A vehicle thermal management system, comprising:

2. The vehicle thermal management system of claim 1, wherein: the host computer includes evaporative condenser, air heater and air-blower, just evaporative condenser is the stock solution formula evaporative condenser.

3. The vehicle thermal management system of claim 1, wherein: the switching valve group comprises a first four-way valve, a second four-way valve and a switching valve.

4. The vehicle thermal management system of claim 3, wherein: the first four-way valve includes a plurality of outlets and the second four-way valve includes a plurality of outlets.

5. The vehicle thermal management system of claim 3, wherein: the water pump comprises a battery water pump and a motor water pump, wherein one end of the battery water pump is connected with the battery, and the other end of the battery water pump is connected with the second four-way valve.

6. The vehicle thermal management system of claim 5, wherein: one end of the motor water pump is connected with the first motor through the power manager, and the other end of the motor water pump is connected with the radiator.

7. The vehicle thermal management system of claim 3, wherein: the water circulation loop further comprises an expansion kettle, one end of the expansion kettle is connected between the second four-way valve and the battery water pump, and the other end of the expansion kettle is connected between the first four-way valve and the water heater.

8. The vehicle thermal management system of claim 1, wherein: the refrigerant circuit further includes an on-off valve, and the on-off valve is connected in parallel with the compressor.

9. A control method of a vehicle thermal management system using the vehicle thermal management system according to claim 1, characterized by comprising:

10. A vehicle, characterized by comprising:

a vehicle body; and

a thermal management module, the thermal management module comprising:

a connection base;

a refrigerant circuit provided at one side of the connection base;

wherein the thermal management module is disposed on the body.