Integrated thermal management system with battery heating device
By introducing battery heating devices and simple valve structures into the thermal management system of new energy vehicles, the problems of low efficiency and system complexity of the thermal management system in low temperature environments are solved, and more efficient heat pump system operation and lower safety accident risks are achieved.
Patent Information
- Application Number
- CN202410751226.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-03-28
AI Technical Summary
At lower ambient temperatures, the air conditioning power consumption of new energy vehicles is high, resulting in the attenuation of the vehicle's endurance. The use of multi-way valves in existing integrated thermal management technology leads to complex system structure and high difficulty in fault positioning.
Design an integrated thermal management system with battery heating device to improve heat pump system efficiency by utilizing motor heat dissipation and reduce system complexity through simple three-way and four-way valve structures.
Improve the efficiency of the heat pump system in a low-temperature environment, avoid frost of the heat exchanger, reduce the probability of safety accidents, and simplify the system structure for easy maintenance.
Smart Images
Figure CN119705224A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a thermal management system for a new energy vehicle, in particular to an integrated thermal management system with a battery heating device that can fully utilize the heat dissipation of a motor. Background Art
[0002] With the rapid development of the global economy, green energy resources are becoming scarce. Countries have formulated effective measures for the goal of carbon neutrality, and vigorously developing new energy vehicles (including passenger cars, commercial vehicles, engineering vehicles, etc.) has also become one of the important means to save energy and achieve carbon neutrality.
[0003] New energy vehicles are paying more and more attention to vehicle thermal management technology. The current technical development of thermal management systems for new energy vehicles has evolved from simple distributed three-electric thermal management to integrated three-electric thermal management, and a variety of three-electric thermal coupling systems have been developed. Through effective integrated thermal management technology, energy loss caused by temperature problems can be reduced. For example, batteries working at a suitable temperature can improve their charging and discharging efficiency and reduce energy loss; cooling of motors and electronic control units can also reduce performance degradation caused by overheating and improve overall energy utilization efficiency. At the same time, the thermal management system of new energy vehicles is an important part of ensuring vehicle safety. By monitoring and controlling the temperature of batteries, motors and electronic control units, safety accidents such as thermal runaway can be prevented. The thermal management system can also work in conjunction with the vehicle's air conditioning system, using the heat or coolant generated by the battery to heat or cool the passenger compartment to improve passenger comfort. Through vehicle integrated thermal management, the motor and battery can be kept in the optimal operating temperature range with the highest efficiency. Combined with heat pump air conditioning technology, the vehicle's endurance can be further improved.
[0004] However, at lower ambient temperatures, even if new energy vehicles use heat pump technology to absorb heat from the environment, the air conditioning power consumption is still high, which further increases the vehicle's endurance degradation. When the ambient temperature is below a certain level, such as -10°C, some thermal management systems can only use electric heaters for heating, and the compressor cannot be started due to the low ambient temperature. At this time, the endurance degradation is more serious. At the same time, many existing integrated thermal management technologies use eight-way valves, ten-way valves, and even twelve-way valves to integrate the vehicle's thermal management circuit, but the more valve ports a multi-way valve has, the more complex the system structure will be; on the other hand, since all thermal management lines are integrated / connected to the multi-way valve, the multi-way valve becomes the "hub" of the vehicle's thermal management system. Once the eight-way valve, ten-way valve, or twelve-way valve fails, not only is the difficulty of fault location and repair very high, but it can also sometimes lead to safety accidents. Summary of the invention
[0005] In view of the deficiencies in the prior art, the present invention proposes an integrated thermal management system with a battery heating device, which can not only utilize the heat dissipation of the motor to make the heat pump system more efficient, but also the control valve only uses simple three-way valves and four-way valves, with simple structure and complete functions.
[0006] The present invention is realized by the following technical scheme, which includes an indoor refrigeration circulation pipeline, a compressor, an outdoor condenser, an indoor evaporator, a gas-liquid separator, a battery cooling circulation pipeline, a heat pump circulation pipeline, a battery circulation pipeline, a warm air circulation pipeline, a motor electronic control circulation pipeline, a heat dissipation circulation pipeline, a first expansion valve, a second expansion valve, a first heat exchanger, an indoor condenser, a third expansion valve, a second heat exchanger, a battery, a battery heating device, an indoor warm air core, a warm air heater, a motor, a controller, a radiator, a first three-way valve, a second three-way valve, The four-way valve, the first circulation pump, the second circulation pump, and the third circulation pump; the compressor, the first three-way valve, the outdoor condenser, the first expansion valve, the indoor evaporator, and the gas-liquid separator are sequentially connected in series in the indoor refrigeration circulation pipeline, the second expansion valve and the first heat exchanger are sequentially connected in series in the battery cooling circulation pipeline, and the indoor condenser, the third expansion valve, and the second heat exchanger are sequentially connected in series in the heat pump circulation pipeline; the two ports of the first three-way valve are respectively connected to the indoor refrigeration circulation pipeline, the third port of the first three-way valve is connected to the inlet of the heat pump circulation pipeline, and the heat pump circulation pipeline The outlet of the battery cooling circulation pipeline is connected to the indoor evaporator and the indoor refrigeration circulation pipeline between the gas-liquid separator; the inlet of the battery cooling circulation pipeline is connected to the indoor refrigeration circulation pipeline between the outdoor condenser and the first expansion valve, and the outlet of the battery cooling circulation pipeline is connected to the indoor refrigeration circulation pipeline between the indoor evaporator and the gas-liquid separator; the first circulation pump, the battery, and the first heat exchanger are connected in series in the battery circulation pipeline in sequence, and the battery heating device is arranged on the battery; the second circulation pump, the four-way valve, the indoor warm air core, and the warm air heater are connected in series in the warm air circulation pipeline in sequence, and the first The three circulation pumps, the second three-way valve, the second heat exchanger, the four-way valve, the motor, and the controller are connected in series in the motor electronic control circulation pipeline in sequence, and the radiator is connected in series in the heat dissipation circulation pipeline; the two ports of the second three-way valve are respectively connected to the motor electronic control circulation pipeline, the third port of the second three-way valve is connected to the inlet of the heat dissipation circulation pipeline, and the outlet of the heat dissipation circulation pipeline is connected to the motor electronic control circulation pipeline between the second heat exchanger and the four-way valve; the two ports of the four-way valve are connected to the warm air circulation pipeline, and the other two ports of the four-way valve are connected to the motor electronic control circulation pipeline.
[0007] Furthermore, in the present invention, the battery heating device is a film heating device, the warm air heater is a PTC heater, and the first heat exchanger and the second heat exchanger are both double-channel plate heat exchangers.
[0008] Furthermore, in the present invention, the first three-way valve and the second three-way valve are both two-position three-way valves.
[0009] Furthermore, in the present invention, the first expansion valve is a thermal expansion valve or an electronic expansion valve, the third expansion valve is a thermal expansion valve or an electronic expansion valve, and the second expansion valve is an electronic expansion valve.
[0010] Furthermore, in the present invention, when the second expansion valve is a thermal expansion valve, the integrated thermal management system further includes a solenoid valve, which is serially connected in the battery cooling circulation pipeline and is located upstream of the second expansion valve. The solenoid valve is used to control the on-off of the circulating medium in the battery cooling circulation pipeline. If there is no solenoid valve, when the second expansion valve is a thermal expansion valve, the second expansion valve will always be in an open state when the compressor is in working state.
[0011] Furthermore, in the present invention, the motor is a drive motor and the controller is a motor controller.
[0012] Furthermore, the present invention also includes a generator, which is connected in series in the motor electronic control circulation pipeline and is located between the motor and the controller.
[0013] Furthermore, in the present invention, the function of the first three-way valve is realized by the first two-way valve and the second two-way valve. The first two-way valve is connected in series in the indoor refrigeration circulation pipeline and is located between the compressor and the outdoor condenser. The second two-way valve is connected in series in the heat pump circulation pipeline and is located upstream of the indoor condenser. The inlet of the heat pump circulation pipeline is connected to the indoor refrigeration circulation pipeline between the compressor and the first two-way valve; the function of the second three-way valve is realized by the third two-way valve and the fourth two-way valve. The third two-way valve is connected in series in the motor electronic control circulation pipeline and is located between the third circulation pump and the second heat exchanger. The fourth two-way valve is connected in series in the heat dissipation circulation pipeline and is located upstream of the radiator. The inlet of the heat dissipation circulation pipeline is connected to the motor electronic control circulation pipeline between the third circulation pump and the third two-way valve.
[0014] Furthermore, in the present invention, the function of the four-way valve is realized by a plurality of three-way valves or two-way valves, and the function of the four-way valve is realized by the cooperation of a plurality of three-way valves or two-way valves.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention has a reasonable design and a simple structure, which can not only make the heat pump system more efficient when the ambient temperature is low and effectively avoid frosting of the outdoor heat exchanger; but also the relevant control valves in the entire system only use two three-way valves and one four-way valve, without using more complex multi-way valves, which can reduce the probability of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;
[0017] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;
[0018] Among them, 1. indoor refrigeration circulation pipeline, 2. battery cooling circulation pipeline, 3. heat pump circulation pipeline, 4. battery circulation pipeline, 5. warm air circulation pipeline, 6. motor electronic control circulation pipeline, 7. heat dissipation circulation pipeline, 8. compressor, 9. outdoor condenser, 10. first expansion valve, 11. indoor evaporator, 12. gas-liquid separator, 13. second expansion valve, 14. first heat exchanger, 15. indoor condenser, 16. third expansion valve, 17. second heat exchanger, 18. battery, 19. battery heating device, 20. indoor warm air core, 21. warm air heater, 22. motor, 23. controller, 24. radiator, 25. first three-way valve, 26. second three-way valve, 27. four-way valve, 28. first circulation pump, 29. second circulation pump, 30. third circulation pump, 31. first two-way valve, 32. second two-way valve, 33. third two-way valve, 34. fourth two-way valve. DETAILED DESCRIPTION
[0019] In order to make the contents of the present invention easier to understand, the technical scheme of the present invention is further explained below in conjunction with specific embodiments. The examples are only used to illustrate the present invention, but the present invention is not limited to the contents. The operation methods in the following examples without specifying specific conditions are usually carried out under conventional conditions or according to the product instructions. The chemical reagents without specifying the manufacturer are all conventional drugs that comply with national standards and can be purchased on the market.
[0020] Embodiment 1
[0021] like Figure 1As shown, the present invention includes an indoor refrigeration circulation pipeline 1, a battery cooling circulation pipeline 2, a heat pump circulation pipeline 3, a battery circulation pipeline 4, a warm air circulation pipeline 5, a motor electronic control circulation pipeline 6, a heat dissipation circulation pipeline 7, a compressor 8, an outdoor condenser 9, a first expansion valve 10, an indoor evaporator 11, a gas-liquid separator 12, a second expansion valve 13, a first heat exchanger 14, an indoor condenser 15, a third expansion valve 16, a second heat exchanger 17, a battery 18, a battery heating device 19, an indoor warm air core 20, a warm air heater 21, a motor 22, a controller 23, a radiator 24, a first three-way valve 25, a second three-way valve 26, a four-way valve 27, a first circulation pump 28, a second circulation pump 29, and a third circulation pump 30. The compressor 8, the first three-way valve 25, the outdoor condenser 9, the first expansion valve 10, the indoor evaporator 11, and the gas-liquid separator 12 are connected in series in the indoor refrigeration circulation pipeline 1 in sequence, the second expansion valve 13 and the first heat exchanger 14 are connected in series in the battery cooling circulation pipeline 2 in sequence, and the indoor condenser 15, the third expansion valve 16, and the second heat exchanger 17 are connected in series in the heat pump circulation pipeline 3 in sequence; the A and B ports of the first three-way valve 25 are respectively connected to the indoor refrigeration circulation pipeline 1, the C port of the first three-way valve 25 is connected to the inlet of the heat pump circulation pipeline 3, and the outlet of the heat pump circulation pipeline 3 is connected to the indoor refrigeration circulation pipeline 1 between the indoor evaporator 11 and the gas-liquid separator 12; the inlet of the battery cooling circulation pipeline 2 is connected to the indoor refrigeration circulation pipeline 1 between the outdoor condenser 9 and the first expansion valve 10, and the outlet of the battery cooling circulation pipeline 2 is connected to the indoor refrigeration circulation pipeline 1 between the indoor evaporator 11 and the gas-liquid separator 12. The first circulation pump 28, the battery 18, and the first heat exchanger 14 are sequentially connected in series in the battery circulation pipeline 4, and the battery heating device 19 is arranged on the battery 18; the second circulation pump 29, the four-way valve 27, the indoor warm air core 20, and the warm air heater 21 are sequentially connected in series in the warm air circulation pipeline 5, the third circulation pump 30, the second three-way valve 26, the second heat exchanger 17, the four-way valve 27, the motor 22, and the controller 23 are sequentially connected in series in the motor electronic control circulation pipeline 6, and the radiator 24 It is connected in series in the heat dissipation circulation pipeline 7; the D and E ports of the second three-way valve 26 are respectively connected to the motor electronic control circulation pipeline 6, the F port of the second three-way valve 26 is connected to the inlet of the heat dissipation circulation pipeline 7, and the outlet of the heat dissipation circulation pipeline 7 is connected to the motor electronic control circulation pipeline 6 between the second heat exchanger 17 and the four-way valve 27; the J and K ports of the four-way valve 27 are connected to the warm air circulation pipeline 5, and the G and H ports of the four-way valve 27 are connected to the motor electronic control circulation pipeline 6. The battery heating device 19 is a film heating device, the warm air heater 21 is a PTC heater, the first heat exchanger 14 and the second heat exchanger 17 are both double-channel plate heat exchangers, the first three-way valve 25 and the second three-way valve 26 are both two-position three-way valves, and the first expansion valve 10, the second expansion valve 13, and the third expansion valve 16 are all electronic expansion valves.
[0022] During the implementation of the present invention, the main implementation conditions and control methods of each component are as follows:
[0023] Working condition 1: The cab needs to be cooled, the battery 18 does not need to be cooled or heated, and the motor 22 and the controller 23 do not need to dissipate heat
[0024] The A and B ports of the first three-way valve 25 are controlled to be connected, the A and C ports of the first three-way valve 25 are isolated, the first expansion valve 10 is opened, the second expansion valve 13 and the third expansion valve 16 are closed; the compressor 8 is operated, and the first circulation pump 28, the second circulation pump 29 and the third circulation pump 30 are stopped. The outdoor condenser 9 dissipates heat to the environment, and the indoor evaporator 11 absorbs heat in the cab.
[0025] Working condition 2: The cab needs to be cooled, the battery 18 needs to be kept warm, and the motor 22 and the controller 23 need to be cooled.
[0026] The A and B ports of the first three-way valve 25 are controlled to be connected, the A and C ports of the first three-way valve 25 are blocked, the first expansion valve 10 is opened, and the second expansion valve 13 and the third expansion valve 16 are closed; the D and F ports of the second three-way valve 26 are connected, the D and E ports of the second three-way valve 26 are blocked, the G and H ports of the four-way valve 27 are connected, and the J and K ports of the four-way valve 27 are connected; the compressor 8, the first circulation pump 28, and the third circulation pump 30 are operated, and the second circulation pump 29 is stopped. The outdoor condenser 9 dissipates heat to the environment, and the indoor evaporator 11 absorbs heat in the cab; the motor 22 and the controller 23 dissipate heat to the environment through the radiator 24, and the coolant in the battery circulation pipeline 4 circulates itself.
[0027] Working condition 3: The cab needs to be cooled, and the battery 18, motor 22, and controller 23 need to be cooled
[0028] The A and B ports of the first three-way valve 25 are controlled to be connected, the A and C ports of the first three-way valve 25 are blocked, the first expansion valve 10 and the second expansion valve 13 are opened, and the third expansion valve 16 is closed; the D and F ports of the second three-way valve 26 are connected, the D and E ports of the second three-way valve 26 are blocked, the G and H ports of the four-way valve 27 are connected, and the J and K ports of the four-way valve 27 are connected; the compressor 8, the first circulation pump 28, and the third circulation pump 30 are operated, and the second circulation pump 29 is stopped. The outdoor condenser 9 dissipates heat to the environment, and the indoor evaporator 11 absorbs heat in the cab; the battery 18 dissipates heat to the outside through the first heat exchanger 14, and the motor 22 and the controller 23 dissipate heat to the environment through the radiator 24.
[0029] Working condition 4: The cab needs to be slightly heated, and the battery 18, motor 22, and controller 23 need to be cooled
[0030] The A and B ports of the first three-way valve 25 are controlled to be connected, the A and C ports of the first three-way valve 25 are blocked, the second expansion valve 13 is opened, and the first expansion valve 10 and the third expansion valve 16 are closed; the D and E ports of the second three-way valve 26 are controlled to be connected, the D and F ports of the second three-way valve 26 are blocked, the G and J ports of the four-way valve 27 are connected, and the H and K ports of the four-way valve 27 are connected; the compressor 8, the first circulation pump 28, the second circulation pump 29, and the third circulation pump 30 are operated. The outdoor condenser 9 dissipates heat to the environment, and the battery 18 dissipates heat to the outside through the first heat exchanger 14; the warm air circulation pipeline 5 and the motor electronic control circulation pipeline 6 are connected in series, and the motor 22 and the controller 23 dissipate heat to the cab through the indoor warm air core 20. At this time, the air conditioning circulation pipeline only cools but does not heat, and the heat in the cab comes from the heat dissipation of the motor 22 and the controller 23.
[0031] At this time, the D and E ports of the second three-way valve 26 are controlled to be connected, and the D and F ports are not connected, otherwise the heat generated by the motor 22 and the controller 23 will be dissipated to the environment through the radiator 24, and will not play a role in heating the cab.
[0032] Working condition 5: The cab needs strong heating, and the battery 18, motor 22, and controller 23 need to be cooled
[0033] On the basis of the above working condition 4, the warm air heater 21 is turned on at the same time. The air conditioning circulation pipeline only cools but does not heat. The heat in the cab comes from the heat dissipation of the motor 22 and the controller 23, and the heat supply of the warm air heater 21.
[0034] Working condition 6: The cab needs strong heating, the battery 18 needs to be heated, and the motor 22 and the controller 23 need to be cooled
[0035] The A and C ports of the first three-way valve 25 are controlled to be connected, the A and B ports of the first three-way valve 25 are blocked, the third expansion valve 16 is opened, and the first expansion valve 10 and the second expansion valve 13 are closed; the D and E ports of the second three-way valve 26 are connected, the D and F ports of the second three-way valve 26 are blocked, the G and H ports of the four-way valve 27 are connected, and the J and K ports of the four-way valve 27 are connected; the compressor 8, the first circulation pump 28, and the third circulation pump 30 are operated, the second circulation pump 29 is stopped, and the battery heating device 19 is operated. The indoor condenser 15 dissipates heat into the cab, the battery 18 is heated by the battery heating device 19, and the motor 22 and the controller 23 dissipate heat to the outside through the second heat exchanger 17. The heat pump air conditioning system absorbs the heat of the motor 22 and the controller 23 through the second heat exchanger 17, thereby improving the working efficiency of the compressor 8 in a low temperature environment; at the same time, it does not directly absorb the heat of the environment through the radiator 24, which can effectively prevent the radiator 24 from frosting in a low temperature environment.
[0036] If the heat of the cab is to be further increased, the warm air heater 21 can be turned on to operate the second circulation pump 29 to supply heat to the cab through the indoor warm air core 20 .
[0037] Working condition 7: Dehumidification is required in the cab
[0038] The A and B ports of the first three-way valve 25 are controlled to be connected, the A and C ports of the first three-way valve 25 are blocked, the first expansion valve 10 is opened, and the second expansion valve 13 and the third expansion valve 16 are closed; the D and E ports of the second three-way valve 26 are connected, the D and F ports of the second three-way valve 26 are blocked, the G and J ports of the four-way valve 27 are connected, and the H and K ports of the four-way valve 27 are connected; the compressor 8, the second circulation pump 29, and the third circulation pump 29 are running, and the first circulation pump 28 is stopped. The warm air circulation pipeline 5 and the motor electronic control circulation pipeline 6 are connected in series, the indoor evaporator 11 and the indoor warm air core 20 are both working, and the motor 22 and the controller 23 dissipate heat to the cab through the indoor warm air core 20; the gas entering the cab is first cooled and dehydrated by the indoor evaporator 11, and then heated by the indoor warm air core 20, so as to achieve the purpose of dehumidification.
[0039] If the heat dissipation of the motor 22 and the controller 23 is still insufficient, the warm air heater 21 is turned on.
[0040] The above are only the working principles of the seven main operating conditions. In addition, there are other operating conditions, and the relevant principles will not be stated here one by one.
[0041] Embodiment 2
[0042] In this embodiment, the first three-way valve 25 in the first embodiment is replaced by a first two-way valve 31 and a second two-way valve 32. The first two-way valve 31 is connected in series in the indoor refrigeration circulation pipeline 1 and is located between the compressor 8 and the outdoor condenser 9. The second two-way valve 32 is connected in series in the heat pump circulation pipeline 3 and is located upstream of the indoor condenser 15. The inlet of the heat pump circulation pipeline 3 is connected to the indoor refrigeration circulation pipeline 1 between the compressor 8 and the first two-way valve 31; the second three-way valve 26 is replaced by a third two-way valve 33 and a fourth two-way valve 34. The third two-way valve 33 is connected in series in the motor electronic control circulation pipeline 6 and is located between the third circulation pump 30 and the second heat exchanger 17. The fourth two-way valve 34 is connected in series in the heat dissipation circulation pipeline 7 and is located upstream of the radiator 24. The inlet of the heat dissipation circulation pipeline 7 is connected to the motor electronic control circulation pipeline 6 between the third circulation pump 30 and the third two-way valve 33.
[0043] By switching the first two-way valve 31, the second two-way valve 32, the third two-way valve 33, and the fourth two-way valve 34, the circulation pipelines can be turned on and off, thereby realizing the operation of various working conditions in Example 1, and the control method of the relevant components will not be described here.
[0044] Similarly, the function of the four-way valve 27 can also be achieved by connecting multiple two-way valves or three-way valves and related pipelines.
[0045] The above embodiments are merely illustrative of the design principles and uses of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.
Claims
1. An integrated thermal management system with a battery heating device, comprising an indoor refrigeration cycle pipeline (1), a compressor (8), an outdoor condenser (9), an indoor evaporator (11), and a gas-liquid separator (12), characterized in that: The system also includes a battery cooling circulation pipeline (2), a heat pump circulation pipeline (3), a battery circulation pipeline (4), a warm air circulation pipeline (5), a motor electronic control circulation pipeline (6), a heat dissipation circulation pipeline (7), a first expansion valve (10), a second expansion valve (13), a first heat exchanger (14), an indoor condenser (15), a third expansion valve (16), a second heat exchanger (17), a battery (18), a battery heating device (19), an indoor warm air core (20), a warm air heater (21), a motor (22), a controller (23), a radiator (24), a first three-way valve (25), a second three-way valve (26), a four-way valve (27), a first circulation pump (28), a second circulation pump (29), and a third circulation pump (30); The compressor (8), the first three-way valve (25), the outdoor condenser (9), the first expansion valve (10), the indoor evaporator (11), and the gas-liquid separator (12) are sequentially connected in series in the indoor refrigeration circulation pipeline (1); the second expansion valve (13) and the first heat exchanger (14) are sequentially connected in series in the battery cooling circulation pipeline (2); the indoor condenser (15), the third expansion valve (16), and the second heat exchanger (17) are sequentially connected in series in the heat pump circulation pipeline (3); the two ports of the first three-way valve (25) are respectively connected to the indoor refrigeration circulation pipeline (1). The third port of the first three-way valve (25) is connected to the inlet of the heat pump circulation pipeline (3), and the outlet of the heat pump circulation pipeline (3) is connected to the indoor refrigeration circulation pipeline (1) between the indoor evaporator (11) and the gas-liquid separator (12); the inlet of the battery cooling circulation pipeline (2) is connected to the indoor refrigeration circulation pipeline (1) between the outdoor condenser (9) and the first expansion valve (10), and the outlet of the battery cooling circulation pipeline (2) is connected to the indoor refrigeration circulation pipeline (1) between the indoor evaporator (11) and the gas-liquid separator (12); The first circulation pump (28), the battery (18), and the first heat exchanger (14) are sequentially connected in series in the battery circulation pipeline (4); the battery heating device (19) is arranged on the battery (18); the second circulation pump (29), the four-way valve (27), the indoor warm air core (20), and the warm air heater (21) are sequentially connected in series in the warm air circulation pipeline (5); the third circulation pump (30), the second three-way valve (26), the second heat exchanger (17), the four-way valve (27), the motor (22), and the controller (23) are sequentially connected in series in the motor electronic control circulation pipeline (6); The radiator (24) is connected in series in the heat dissipation circulation pipeline (7); two ports of the second three-way valve (26) are respectively connected to the motor electronic control circulation pipeline (6); the third port of the second three-way valve (26) is connected to the inlet of the heat dissipation circulation pipeline (7); the outlet of the heat dissipation circulation pipeline (7) is connected to the second heat exchanger (17) and the motor electronic control circulation pipeline (6) between the four-way valve (27); two ports of the four-way valve (27) are connected to the warm air circulation pipeline (5), and the other two ports of the four-way valve (27) are connected to the motor electronic control circulation pipeline (6).
2. The integrated thermal management system with a battery heating device according to claim 1, characterized in that The battery heating device (19) is a film heating device, the warm air heater (21) is a PTC heater, and the first heat exchanger (14) and the second heat exchanger (17) are both double-channel plate heat exchangers.
3. The integrated thermal management system with a battery heating device according to claim 1, characterized in that The first three-way valve (25) and the second three-way valve (26) are both two-position three-way valves.
4. The integrated thermal management system with a battery heating device according to claim 1, characterized in that The first expansion valve (10) is a thermal expansion valve or an electronic expansion valve, the third expansion valve (16) is a thermal expansion valve or an electronic expansion valve, and the second expansion valve (13) is an electronic expansion valve.
5. The integrated thermal management system with a battery heating device according to claim 1, characterized in that The second expansion valve (13) is a thermal expansion valve, and the integrated thermal management system further comprises a solenoid valve, which is connected in series in the battery cooling circulation pipeline (2) and is located upstream of the second expansion valve (13).
6. The integrated thermal management system with a battery heating device according to claim 1, characterized in that The motor (22) is a driving motor, and the controller (23) is a motor controller.
7. The integrated thermal management system with a battery heating device according to claim 1, characterized in that It also includes a generator, which is connected in series in the motor electronic control circulation pipeline (6) and is located between the motor (22) and the controller (23).
8. The integrated thermal management system with a battery heating device according to claim 1, characterized in that The first three-way valve (25) is replaced by a first two-way valve (31) and a second two-way valve (32); the first two-way valve (31) is connected in series to the indoor refrigeration circulation pipeline (1) and is located between the compressor (8) and the outdoor condenser (9); the second two-way valve (32) is connected in series to the heat pump circulation pipeline (3) and is located upstream of the indoor condenser (15); the inlet of the heat pump circulation pipeline (3) is connected to the indoor refrigeration circulation pipeline (1) between the compressor (8) and the first two-way valve (31); The two-way and three-way valves (26) are replaced by a third two-way valve (33) and a fourth two-way valve (34); the third two-way valve (33) is connected in series to the motor-controlled circulation pipeline (6) and is located between the third circulation pump (30) and the second heat exchanger (17); the fourth two-way valve (34) is connected in series to the heat dissipation circulation pipeline (7) and is located upstream of the radiator (24); the inlet of the heat dissipation circulation pipeline (7) is connected to the motor-controlled circulation pipeline (6) between the third circulation pump (30) and the third two-way valve (33).
9. The integrated thermal management system with a battery heating device according to claim 1, characterized in that The four-way valve (27) is replaced by a plurality of three-way valves or two-way valves.