Heat pump type integrated heat management system
By designing a heat pump integrated thermal management system, the motor heat dissipation is used to improve efficiency, and a simple valve structure is adopted to solve the problems of the attenuation of the battery life of new energy vehicles in low-temperature environments, achieving more efficient thermal management and lower safety risks.
Patent Information
- Application Number
- CN202421778188.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-25
AI Technical Summary
At lower ambient temperatures, the air conditioning power consumption of new energy vehicles and hybrid vehicles is high, resulting in the attenuation of the vehicle's endurance. The existing integrated thermal management system has a complex structure, difficulty in positioning and repairing, and poses safety hazards.
Design a heat pump integrated thermal management system to improve the efficiency of the heat pump system by utilizing motor heat dissipation, and simplify the system through a simple three-way and four-way valve structure to reduce complexity and failure risks.
Improve the efficiency of the heat pump system in a low-temperature environment, avoid frost in outdoor heat exchangers, reduce the probability of safety accidents, and simplify the system structure and improve the convenience of fault location and maintenance.
Smart Images
Figure CN223014280U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat management system for a hybrid vehicle, in particular to a heat pump type integrated heat management system that can make full use of the heat dissipation of the motor. Background Art
[0002] With the rapid development of the global economy, green energy resources are becoming tense. Countries have successively formulated effective measures for the carbon neutrality goal, and vigorously developing new energy vehicles and hybrid vehicles has also become one of the important means to save energy and achieve carbon neutrality.
[0003] New energy vehicles and hybrid vehicles are paying more and more attention to the vehicle-integrated heat management technology. The current technological development of the new energy vehicle heat management system has evolved from a simple distributed three-electric heat management to an integrated three-electric heat management, and various three-electric heat coupling systems have been developed. Through effective integrated heat management technology, the energy consumption loss caused by temperature problems can be reduced. For example, the battery can work at an appropriate temperature to improve its charging and discharging efficiency and reduce energy loss; the cooling of the motor and the electronic control unit can also reduce the performance degradation caused by overheating and improve the overall energy utilization efficiency. At the same time, the heat management system of new energy vehicles is an important part of ensuring vehicle safety. By monitoring and controlling the temperatures of the battery, motor, and electronic control unit, safety accidents such as thermal runaway can be prevented. The heat management system can also work in coordination with the vehicle's air conditioning system to heat or cool the passenger compartment using the heat generated by the battery or the coolant, improving the comfort of passengers. Through vehicle-integrated heat management, the motor and battery can be in the optimal working temperature range with the highest efficiency. Combining with heat pump air conditioning technology can further improve the vehicle's endurance.
[0004] However, at lower ambient temperatures, even if new energy vehicles and hybrid vehicles use heat pump technology to extract heat from the environment, the air conditioning power consumption is still relatively high, further increasing the vehicle's endurance attenuation. When the ambient temperature is lower than a certain level, such as -10°C, some heat management systems can only use electric heaters for heating, and the compressor is restricted from starting due to the low ambient temperature, and the endurance attenuation is even more serious at this time. At the same time, in the existing integrated heat management technology, many use eight-way valves, ten-way valves, or even twelve-way valves to integrate the vehicle's heat management circuit. However, the more valve ports there are in the multi-way valve, the more complex the system structure will be; on the other hand, since all heat management pipelines are integrated / connected to the multi-way valve, the multi-way valve has become the "center" of the vehicle's heat 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 sometimes it may also lead to safety accidents. Summary of the Invention
[0005] In view of the deficiencies of the prior art, the present utility model provides a heat pump type integrated thermal management system, which can not only make the heat pump system highly efficient by utilizing the heat dissipation of the motor, but also only adopts simple three-way valves and four-way valves as control valves, with a simple structure and complete functions.
[0006] The present utility model is realized through the following technical solutions. The present utility model 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 and electronic control circulation pipeline, a heat dissipation circulation pipeline, a first expansion valve, a second expansion valve, a first heat exchanger, a second heat exchanger, a third expansion valve, a third 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, a four-way valve, a first circulation pump, a second circulation pump, a third circulation pump, a third three-way valve, an engine, a fourth three-way valve, an engine radiator, an engine water pump, an engine circulation pipeline, a first connecting pipe, and a second connecting pipe; 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 second heat exchanger, the third expansion valve, and the third heat exchanger are sequentially connected in series in the heat pump circulation pipeline; two ports of the first three-way valve are respectively communicated with the indoor refrigeration circulation pipeline, the third port of the first three-way valve 25 is communicated with the inlet of the heat pump circulation pipeline, and the outlet of the heat pump circulation pipeline is communicated with the indoor refrigeration circulation pipeline between the indoor evaporator and the gas-liquid separator; the inlet of the battery cooling circulation pipeline is communicated with the indoor refrigeration circulation pipeline between the outdoor condenser and the first expansion valve, and the outlet of the battery cooling circulation pipeline is communicated with 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 second heat exchanger, the in-vehicle heater core, the warm air heater, and the third three-way valve are connected in series in the warm air circulation pipeline in sequence, the third circulation pump, the second three-way valve, the third heat exchanger, the four-way valve, the motor, and the controller are connected in series in the motor and electronic control circulation pipeline in sequence, and the radiator is connected in series in the heat dissipation circulation pipeline; two ports of the second three-way valve are respectively connected and communicated with the motor and electronic control circulation pipeline, the third port of the second three-way valve is connected and communicated with the inlet of the heat dissipation circulation pipeline, and the outlet of the heat dissipation circulation pipeline is connected and communicated with the motor and electronic control circulation pipeline between the third heat exchanger and the four-way valve; two ports of the four-way valve are connected and communicated with the warm air circulation pipeline, and the other two ports of the four-way valve are connected and communicated with the motor and electronic control circulation pipeline; the engine, the fourth three-way valve, the engine radiator, and the engine water pump are connected in series in the engine circulation pipeline in sequence, two ports of the third three-way valve are respectively connected and communicated with the warm air circulation pipeline, the third port of the third three-way valve is connected to one port of the first connecting pipe, the other port of the first connecting pipe is connected and communicated with the engine circulation pipeline between the engine radiator and the engine water pump, two ports of the fourth three-way valve are respectively connected and communicated with the engine circulation pipeline, the third port of the fourth three-way valve is connected to one port of the second connecting pipe, and the other port of the second connecting pipe is connected and communicated with the warm air circulation pipeline between the third three-way valve and the second circulation pump.
[0007] Further, in the present utility model, the battery heating device is a film heating device, the warm air heater is a PTC heater, and the first heat exchanger, the second heat exchanger, and the third heat exchanger are all double-channel plate heat exchangers.
[0008] Furthermore, in the present utility model, the first three-way valve, the second three-way valve, the third three-way valve, and the fourth three-way valve are all two-position three-way valves.
[0009] Furthermore, in the present utility model, the first expansion valve is a thermostatic expansion valve or an electronic expansion valve, the third expansion valve is a thermostatic expansion valve or an electronic expansion valve, and the second expansion valve is an electronic expansion valve.
[0010] Furthermore, in the present utility model, when the second expansion valve is a thermostatic expansion valve, the integrated thermal management system further includes a solenoid valve, and the solenoid valve is connected in series in the battery cooling circulation pipeline and is located upstream of the second expansion valve. The on-off of the circulating medium in the battery cooling circulation pipeline is controlled by this solenoid valve. Without this solenoid valve, when the second expansion valve is a thermostatic expansion valve and the compressor is in the working state, the second expansion valve will also be in the open state all the time.
[0011] Furthermore, in the present utility model, the motor is a drive motor, and the controller is a motor controller.
[0012] Further, the utility model further 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] Further, in the utility model, the function of the first three-way valve is realized by a first two-way valve and a 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 second heat exchanger. 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 a third two-way valve and a 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] Further, in the utility model, 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 through the cooperation of a plurality of three-way valves or two-way valves.
[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is reasonably designed and has a simple structure. It can not only make the heat pump system have a relatively high system efficiency when the ambient temperature is low, effectively avoiding frosting on the outdoor heat exchanger; moreover, only two three-way valves and one four-way valve are used for the relevant control valves in the whole system, without using more complex multi-way valves, which can reduce the occurrence probability of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic structural diagram of Embodiment 1 of the utility model;
[0017] Wherein, 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. Second heat exchanger, 16. Third expansion valve, 17. Third 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. Third three-way valve, 32. Engine, 33. Fourth three-way valve, 34. Engine radiator, 35. Engine water pump, 36. Engine circulation pipeline, 37. First connecting pipe, 38. Second connecting pipe. Detailed implementation manners
[0018] In order to make the content described in the present utility model easier to understand, the technical solution of the present utility model will be further explained below in conjunction with specific implementation manners. The following examples are only used to illustrate the present utility model, but the present utility model is not limited to this content. Embodiment
[0019] As Figure 1As shown in the figure, the utility model includes an indoor refrigeration cycle pipeline 1, a battery cooling cycle pipeline 2, a heat pump cycle pipeline 3, a battery cycle pipeline 4, a warm air cycle pipeline 5, a motor and electronic control cycle pipeline 6, a heat dissipation cycle 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, a second heat exchanger 15, a third expansion valve 16, a third 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, a third circulation pump 30, a third three-way valve 31, an engine 32, a fourth three-way valve 33, an engine radiator 34, an engine water pump 35, an engine cycle pipeline 36, a first connecting pipe 37, and a second connecting pipe 38. 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 cycle pipeline 1. The second expansion valve 13 and the first heat exchanger 14 are sequentially connected in series in the battery cooling cycle pipeline 2. The second heat exchanger 15, the third expansion valve 16, and the third heat exchanger 17 are sequentially connected in series in the heat pump cycle pipeline 3. The A and B ports of the first three-way valve 25 are respectively connected to the indoor refrigeration cycle pipeline 1. The C port of the first three-way valve 25 is connected to the inlet of the heat pump cycle pipeline 3. The outlet of the heat pump cycle pipeline 3 is connected to the indoor refrigeration cycle pipeline 1 between the indoor evaporator 11 and the gas-liquid separator 12. The inlet of the battery cooling cycle pipeline 2 is connected to the indoor refrigeration cycle pipeline 1 between the outdoor condenser 9 and the first expansion valve 10. The outlet of the battery cooling cycle pipeline 2 is connected to the indoor refrigeration cycle 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 cycle pipeline 4. The battery heating device 19 is arranged on the battery 18. The second circulation pump 29, the four-way valve 27, the second heat exchanger 15, the indoor warm air core 20, the warm air heater 21, and the third three-way valve 31 are sequentially connected in series in the warm air cycle pipeline 5. The third circulation pump 30, the second three-way valve 26, the third heat exchanger 17, the four-way valve 27, the motor 22, and the controller 23 are sequentially connected in series in the motor and electronic control cycle pipeline 6. The radiator 24 is connected in series in the heat dissipation cycle pipeline 7. The D and E ports of the second three-way valve 26 are respectively connected to the motor and electronic control cycle pipeline 6. The F port of the second three-way valve 26 is connected to the inlet of the heat dissipation cycle pipeline 7. The outlet of the heat dissipation cycle pipeline 7 is connected to the motor and electronic control cycle pipeline 6 between the third 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 cycle pipeline 5. The G and H ports of the four-way valve 27 are connected to the motor and electronic control cycle pipeline 6.The engine 32, the fourth three-way valve 33, the engine radiator 34, and the engine water pump 35 are connected in series in the engine circulation pipeline 36 in sequence. The two ports of the third three-way valve 31 are respectively communicated with the warm air circulation pipeline 5. The third port of the third three-way valve 31 is connected to one port of the first connecting pipe 37. The other port of the first connecting pipe 37 is communicated with the engine circulation pipeline 36 between the engine radiator 34 and the engine water pump 35. The two ports of the fourth three-way valve 33 are respectively communicated with the engine circulation pipeline 36. The third port of the fourth three-way valve 33 is connected to one port of the second connecting pipe 38. The other port of the second connecting pipe 38 is communicated with the warm air circulation pipeline 5 between the third three-way valve 31 and the second circulation pump 29. The battery heating device 19 is a film heating device. The warm air heater 21 is a PTC heater. The first heat exchanger 14, the second heat exchanger 15, and the third heat exchanger 17 are all double-channel plate heat exchangers. The first three-way valve 25, the second three-way valve 26, the third three-way valve 31, and the fourth three-way valve 33 are all two-position three-way valves. The first expansion valve 10, the second expansion valve 13, and the third expansion valve 16 are all electronic expansion valves.
[0020] During the implementation of the present utility model, when the engine 32 is not running and the whole vehicle is driven by electricity, control the L and M ports of the third three-way valve 31 to be connected, and the L and N ports of the third three-way valve 31 to be cut off. Control the P and S ports of the fourth three-way valve 33 to be connected, and the P and R ports of the fourth three-way valve 33 to be cut off. The main implementation working conditions and the control methods of each component are as follows:
[0021] Control the A and B ports of the first three-way valve 25 to be connected, and the A and C ports of the first three-way valve 25 to be cut off. Open the first expansion valve 10, and close the second expansion valve 13 and the third expansion valve 16. The compressor 8 operates, and the first circulation pump 28, the second circulation pump 29, and the third circulation pump 30 stop operating. The outdoor condenser 9 dissipates heat to the environment, and the indoor evaporator 11 absorbs heat in the cab.
[0022] Control the A and B ports of the first three-way valve 25 to be connected, and the A and C ports of the first three-way valve 25 to be cut off. Open the first expansion valve 10, and close the second expansion valve 13 and the third expansion valve 16. Connect the D and F ports of the second three-way valve 26, and cut off the D and E ports of the second three-way valve 26. Connect the G and H ports of the four-way valve 27, and connect the J and K ports of the four-way valve 27. The compressor 8, the first circulation pump 28, and the third circulation pump 30 operate, and the second circulation pump 29 stops operating. 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 by itself.
[0023] Control the A and B ports of the first three-way valve 25 to be connected, the A and C ports of the first three-way valve 25 to be blocked, the first expansion valve 10 and the second expansion valve 13 to be opened, and the third expansion valve 16 to be closed; control the D and F ports of the second three-way valve 26 to be connected, the D and E ports of the second three-way valve 26 to be blocked, the G and H ports of the four-way valve 27 to be connected, and the J and K ports of the four-way valve 27 to be connected; operate the compressor 8, the first circulation pump 28, and the third circulation pump 30, and stop the second circulation pump 29. The outdoor condenser 9 dissipates heat to the environment, and the indoor evaporator 11 absorbs heat in the cab; the battery 18 dissipates heat through the first heat exchanger 14, and the motor 22 and the controller 23 dissipate heat to the environment through the radiator 24.
[0024] Control the A and B ports of the first three-way valve 25 to be connected, the A and C ports of the first three-way valve 25 to be blocked, the second expansion valve 13 to be opened, and the first expansion valve 10 and the third expansion valve 16 to be closed; control the D and E ports of the second three-way valve 26 to be connected, the D and F ports of the second three-way valve 26 to be blocked, the G and J ports of the four-way valve 27 to be connected, and the H and K ports of the four-way valve 27 to be connected; operate the compressor 8, the first circulation pump 28, the second circulation pump 29, and the third circulation pump 30. The outdoor condenser 9 dissipates heat to the environment, and the battery 18 dissipates heat 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 and does not heat, and the heat in the cab comes from the heat dissipation of the motor 22 and the controller 23.
[0025] At this time, control the D and E ports of the second three-way valve 26 to be connected, and do not connect the D and F ports, otherwise the heat generated by the motor 22 and the controller 23 will be dissipated to the environment through the radiator 24, and it will not play a role in heating the cab.
[0026] On the basis of the above item 4, turn on the warm air heater 21 at the same time. The air-conditioning circulation pipeline only cools and does not heat, and the heat in the cab comes from the heat dissipation of the motor 22 and the controller 23, as well as the heat supply of the warm air heater 21.
[0027] Control the A and C ports of the first three-way valve 25 to be connected, the A and B ports of the first three-way valve 25 to be blocked, the third expansion valve 16 to be opened, and the first expansion valve 10 and the second expansion valve 13 to be closed; connect the D and E ports of the second three-way valve 26, block the D and F ports of the second three-way valve 26, connect the G and H ports of the four-way valve 27, and connect the J and K ports of the four-way valve 27; operate the compressor 8, the first circulation pump 28, the second circulation pump 29, and the third circulation pump 30, and the battery heating device 19 works. The heat pump air-conditioning system transfers heat to the warm air circulation pipeline 5 through the second heat exchanger 15, and the in-vehicle warm air core 20 in the warm air circulation pipeline 5 dissipates heat to the cab; the battery 18 is heated by the battery heating device 19, and the motor 22 and the controller 23 dissipate heat through the third heat exchanger 17. The heat pump air-conditioning system absorbs the heat of the motor 22 and the controller 23 through the third heat exchanger 17, thereby improving the working efficiency of the compressor 8 in a low-temperature environment; at the same time, instead of directly absorbing the heat of the environment through the radiator 24, it can effectively prevent the radiator 24 from frosting in a low-temperature environment.
[0028] If it is necessary to further increase the heat in the cab, the warm air heater 21 can be turned on.
[0029] Control the A and B ports of the first three-way valve 25 to be connected, the A and C ports of the first three-way valve 25 to be blocked, the first expansion valve 10 to be opened, and the second expansion valve 13 and the third expansion valve 16 to be closed; connect the D and E ports of the second three-way valve 26, block the D and F ports of the second three-way valve 26, connect the G and J ports of the four-way valve 27, and connect the H and K ports of the four-way valve 27; operate the compressor 8, the second circulation pump 29, and the third circulation pump 29, and the first circulation pump 28 stops running. The warm air circulation pipeline 5 and the motor electronic control circulation pipeline 6 are connected in series, the in-vehicle evaporator 11 and the in-vehicle warm air core 20 both work, and the motor 22 and the controller 23 dissipate heat to the cab through the in-vehicle warm air core 20; the gas entering the cab is first cooled and dehumidified by the in-vehicle evaporator 11, and then heated by the in-vehicle warm air core 20, so as to achieve the purpose of dehumidification.
[0030] If the heat dissipation of the motor 22 and the controller 23 is still insufficient, the warm air heater 21 is turned on.
[0031] During the implementation of the present invention, when the engine 32 is running, if the in-vehicle warm air core 20 does not need to supply heat, control the L and M ports of the third three-way valve 31 to be connected, the L and N ports of the third three-way valve 31 to be blocked, the P and S ports of the fourth three-way valve 33 to be connected, the P and R ports of the fourth three-way valve 33 to be blocked, the engine water pump 35 to run, and the engine 32 to dissipate heat through the engine radiator 34.
[0032] In the implementation process of the present utility model, when the engine 32 is running and the indoor warm air core 20 needs to be heated, the L and N ports of the third three-way valve 31 are connected, the L and M ports of the third three-way valve 31 are cut off, the P and R ports of the fourth three-way valve 33 are connected, the P and S ports of the fourth three-way valve 33 are cut off, the J and K ports of the four-way valve 7 are connected, the engine water pump 35 runs, and the heat of the engine 32 can be transferred to the indoor warm air core 20.
[0033] The above embodiments are only illustrative of the design principle and use function of the present utility model, rather than limiting the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.
Claims
1. A heat pump integrated thermal management system, 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 battery 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), a second heat exchanger (15), a third expansion valve (16), a third 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), a third circulation pump (30), a third three-way valve (31), an engine (32), a fourth three-way valve (33), an engine radiator (34), an engine water pump (35), an engine circulation pipeline (36), a first connecting pipe (37), and a second connecting pipe (38); 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 second heat exchanger (15), the third expansion valve (16), and the third 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), and the battery heating device (19) is arranged on the battery (18); the second circulation pump (29), the four-way valve (27), the second heat exchanger (15), the indoor warm air core (20), the warm air heater (21), and the third three-way valve (31) are sequentially connected in series in the warm air circulation pipeline (5); the third circulation pump (30), the second three-way valve (26), the third heat exchanger (17), the four-way valve (27), the motor (22), and the controller (23) are sequentially connected in series in the motor circuit (5); The heat dissipation circulation pipeline (6) is connected in series with the radiator (24) 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 motor electronic control circulation pipeline (6) between the third heat exchanger (17) and 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); The engine (32), the fourth three-way valve (33), the engine radiator (34), and the engine water pump (35) are connected in series in the engine circulation pipeline (36) in sequence; the two ports of the third three-way valve (31) are respectively connected to the warm air circulation pipeline (5); the third port of the third three-way valve (31) is connected to a port of the first connecting pipe (37); the other port of the first connecting pipe (37) is connected to the engine circulation pipeline (36) between the engine radiator (34) and the engine water pump (35); the two ports of the fourth three-way valve (33) are respectively connected to the engine circulation pipeline (36); the third port of the fourth three-way valve (33) is connected to a port of the second connecting pipe (38); the other port of the second connecting pipe (38) is connected to the warm air circulation pipeline (5) between the third three-way valve (31) and the second circulation pump (29).
2. The heat pump integrated thermal management system 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), the second heat exchanger (15), and the third heat exchanger (17) are all double-channel plate heat exchangers.
3. The heat pump integrated thermal management system according to claim 1, characterized in that The first three-way valve (25), the second three-way valve (26), the third three-way valve (31), and the fourth three-way valve (33) are all two-position three-way valves.
4. The heat pump integrated thermal management system 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 heat pump integrated thermal management system 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 heat pump integrated thermal management system according to claim 1, characterized in that The motor (22) is a driving motor, and the controller (23) is a motor controller.