Automobile thermal management system and vehicle

Abstract

The utility model relates to an automobile thermal management system and an automobile. The automobile thermal management system comprises a full indirect type refrigerant loop, a cooling liquid loop and a thermal coupling structure. The full indirect type refrigerant loop comprises an electric compressor, an integrated plate type heat exchanger, a first battery cooler, a second battery cooler and the like. A refrigerant absorbs heat through secondary evaporation to improve the heat management efficiency. The cooling liquid loop comprises a low-temperature radiator, a motor electric control system, an HVAC assembly, a plurality of water pumps and a multi-way water valve, and heat dissipation or heating of different parts is achieved through accurate control over the flow direction of cooling liquid. The thermal coupling structure achieves efficient heat exchange between a refrigerant and cooling liquid through the integrated plate type heat exchanger and the battery cooler. The multi-working-condition requirements of battery cooling, passenger compartment heating, motor electric control system heat dissipation and the like can be met, meanwhile, the system efficiency, adaptability and safety are improved, the system is matched with R290 and other environment-friendly refrigerants, and the energy-saving and environment-friendly requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the automobile technical field relates to a kind of automobile thermal management system and vehicle. BACKGROUND

[0002] The refrigerant medium in the electric vehicle thermal management system is transformed into environmentally friendly refrigerants, such as R290, R744, and R747A, which have low GWP values. These refrigerants have different physical and chemical properties, so the existing thermal management system architecture needs to be optimized and modified according to their characteristics.

[0003] Among them, R290 is gradually favored by automobile manufacturers due to its low cost, low working pressure, environmental friendliness, and superior low-temperature heating performance. However, since it is a flammable refrigerant of A3 level, the thermal management system design needs to balance safety, range, and comfort, which poses new challenges to the system architecture.

[0004] In the prior art, the common electric vehicle thermal management system usually adopts a direct refrigerant circuit design. The main disadvantages of this design include:

[0005] 1. Safety hazards: Since refrigerants such as R290 are flammable and have high working pressure, direct refrigerant circuits are prone to fire or explosion accidents when they leak, especially in vehicle collision situations, making safety difficult to guarantee.

[0006] 2. Insufficient energy efficiency: The existing direct refrigerant circuit has low efficiency in low-temperature heating mode, and the heat pump function cannot be used below -15°C, which can increase energy consumption and affect the vehicle's range. The coupling design of the cooling liquid circuit and the refrigerant circuit is relatively simple, and the potential for heat exchange is not fully utilized, resulting in reduced overall system efficiency.

[0007] 3. Poor adaptability: The existing system is optimized for a single refrigerant, making it difficult to accommodate multiple refrigerant characteristics simultaneously, resulting in inconsistent performance under different operating conditions. Secondly, low-temperature heat pumps require less heat source, have low energy efficiency for low-temperature heating, and have complex system control, with limited heat pump coverage.

[0008] 4. High complexity: Direct refrigerant circuits require additional controllers and pipelines, increasing system design complexity and manufacturing costs. UTILITY MODEL CONTENT

[0009] Therefore, the purpose of the utility model is to solve the above problems and provide an automobile thermal management system and vehicle.

[0010] To achieve the above purpose, the utility model provides the following technical solutions:

[0011] An automobile thermal management system, comprising a full-indirect refrigerant circuit, a coolant circuit, a motor electronic control system, a battery system, an HVAC assembly;

[0012] The full-indirect refrigerant circuit comprises an electric compressor, an integrated plate heat exchanger, a first battery cooler, a second battery cooler, and a three-way proportional valve.

[0013] The integrated plate heat exchanger comprises a water-cooled condensing module and a heat recovery module, the water-cooled condensing module is provided with a coolant channel and a refrigerant channel arranged in an alternating and stacked manner, the heat recovery module is provided with a high-pressure refrigerant channel and a low-pressure refrigerant channel arranged in an alternating and stacked manner, the refrigerant channel in the water-cooled condensing module is in communication with the high-pressure refrigerant channel in the heat recovery module, the coolant in the coolant channel cools the high-pressure refrigerant in the refrigerant channel, the water-cooled high-pressure refrigerant enters the high-pressure refrigerant channel, the low-pressure refrigerant in the low-pressure refrigerant channel absorbs heat to cool the high-pressure refrigerant in the high-pressure refrigerant channel into supercooled liquid refrigerant, and the supercooled liquid refrigerant flows out from the high-pressure refrigerant outlet.

[0014] The first battery cooler and the second battery cooler are arranged in parallel, the refrigerant inlets of the first battery cooler and the second battery cooler are in communication with the high-pressure refrigerant outlet of the integrated plate heat exchanger, the refrigerant inlets of the first battery cooler and the second battery cooler are respectively provided with a second electronic expansion valve and a third electronic expansion valve, the refrigerant outlets of the first battery cooler and the second battery cooler are connected to one interface of the three-way proportional valve after being collected, the other two interfaces of the three-way proportional valve are respectively connected to the inlet of the electric compressor and the low-pressure refrigerant inlet of the integrated plate heat exchanger, and the low-pressure refrigerant outlet of the integrated plate heat exchanger is connected to the inlet of the electric compressor; the outlet of the electric compressor is divided into two paths, one path is connected to the high-pressure refrigerant inlet of the integrated plate heat exchanger, and the other path is connected to the inlet of the electric compressor through a large-diameter two-section electronic expansion valve.

[0015] The HVAC assembly comprises a blower, a cold air core, and a warm air core.

[0016] The coolant circuit comprises the motor electronic control system, a low-temperature radiator, an electronic fan, the blower, the cold air core, the warm air core, the battery system, a first water pump, a second water pump, a third water pump, a first three-way water valve, a second three-way water valve, a third three-way water valve, a fourth three-way water valve, a fifth three-way water valve, a sixth three-way water valve, a seventh three-way water valve, a first four-way water valve, a second four-way water valve, the integrated plate heat exchanger, the first battery cooler, and the second battery cooler; the refrigerant circuit and the coolant circuit are thermally coupled through the integrated plate heat exchanger, the first battery cooler, and the second battery cooler.

[0017] The cooling liquid circuit, by controlling the first three-way water valve, the second three-way water valve, the third three-way water valve, the sixth three-way water valve, the first four-way water valve and the second four-way water valve, makes the cooling liquid form different circulation directions, thereby performing thermal management on the passenger compartment, the motor electric control system and the battery system;

[0018] The first water pump, the integrated plate heat exchanger, the first three-way water valve, the second three-way water valve, the low-temperature radiator, the motor electric control system and the third three-way water valve are sequentially communicated in sequence according to the cooling liquid flow direction to form the first cooling liquid circuit.

[0019] The first water pump, the integrated plate heat exchanger, the first three-way water valve, the second three-way water valve, the motor electric control system and the third three-way water valve are sequentially communicated in sequence according to the cooling liquid flow direction to form the second cooling liquid circuit.

[0020] The first water pump, the integrated plate heat exchanger, the sixth three-way water valve, the warm air core body and the seventh three-way water valve are sequentially communicated in sequence according to the cooling liquid flow direction to form the third cooling liquid circuit.

[0021] The first water pump, the integrated plate heat exchanger, the sixth three-way water valve, the battery system and the seventh three-way water valve are sequentially communicated in sequence according to the cooling liquid flow direction to form the fourth cooling liquid circuit.

[0022] The second water pump, the first battery cooler, the first four-way water valve, the cold air core body and the second four-way water valve are sequentially communicated in sequence according to the cooling liquid flow direction to form the fifth cooling liquid circuit.

[0023] The second water pump, the first battery cooler, the first four-way water valve, the battery system and the second four-way water valve are sequentially communicated in sequence according to the cooling liquid flow direction to form the sixth cooling liquid circuit.

[0024] The second water pump, the first battery cooler, the first four-way water valve, the first three-way water valve, the second three-way water valve, the low-temperature radiator, the motor electric control system and the third three-way water valve are sequentially communicated in sequence according to the cooling liquid flow direction to form the seventh cooling liquid circuit.

[0025] The second water pump, the first battery cooler, the first four-way water valve, the first three-way water valve, the second three-way water valve, the motor electric control system and the third three-way water valve are sequentially communicated in sequence according to the cooling liquid flow direction to form the eighth cooling liquid circuit.

[0026] The third water pump, the second battery cooler, the fourth three-way water valve, the cold air core body and the fifth three-way water valve are sequentially communicated in sequence according to the cooling liquid flow direction to form the ninth cooling liquid circuit.

[0027] The third water pump, the second battery cooler, the fourth three-way water valve, the battery system, and the fifth three-way water valve are sequentially connected in sequence by a cooling liquid pipeline to form a tenth cooling liquid circuit.

[0028] The second water pump, the first battery cooler, the first four-way water valve, the first three-way water valve, the second three-way water valve, the low-temperature radiator, the motor control system, the third three-way water valve, the integrated plate heat exchanger, the sixth three-way water valve, the battery system, and the second four-way water valve are sequentially connected in sequence by a cooling liquid pipeline to form an eleventh cooling liquid circuit.

[0029] When the thermal management system faces a conventional refrigeration request, the refrigerant at the outlet of the first battery cooler or the second battery cooler is controlled by the three-way proportional valve to enter the inlet end of the heat recovery module of the integrated plate heat exchanger, and then flows through the heat recovery module and returns to the inlet of the electric compressor, which can improve the system refrigeration capacity and the system COP value; if the thermal management system faces a heating request, the refrigerant at the outlet of the first battery cooler or the second battery cooler needs to be directly controlled by the three-way proportional valve to enter the inlet of the electric compressor, so as to avoid the low-temperature and low-pressure refrigerant from absorbing the heat of the integrated plate heat exchanger. When the refrigerant system adopts an ultra-low-temperature starting or ultra-low-temperature triangular cycle heating mode, the system needs to reduce the pressure loss at the outlet of the expansion valve, and then improve the upper limit value of the compressor speed that can be operated, at this time, the refrigerant mode needs to be switched, and the corresponding adjustment of the outside cooling liquid circuit mode is needed.

[0030] Temperature and pressure sensors are respectively installed at the refrigerant outlets of the first battery cooler and the second battery cooler, and temperature and pressure sensors are respectively installed at the inlet and outlet of the electric compressor.

[0031] Further, an air temperature sensor is installed on the electronic fan side, a water temperature sensor is installed on the pipeline between the first three-way water valve and the second three-way water valve, a water temperature sensor is installed at the cooling liquid outlet of the integrated plate heat exchanger, a water temperature sensor is installed at the cooling liquid outlet of the first battery cooler and the second battery cooler, and a water temperature sensor is installed at the cooling liquid outlet of the battery system.

[0032] Further, a water jug is connected to the cooling liquid circuit for supplementing the cooling liquid in the circuit.

[0033] Further, the control system, the full-indirect refrigerant circuit, the cooling liquid circuit, the motor control system, the battery system, and the HVAC assembly are all controlled by the control system.

[0034] An automobile comprises the automobile thermal management system as described above.

[0035] The beneficial effects of this utility model are as follows:

[0036] 1) The thermal management system in this utility model is a fully indirect model. The refrigerant side module and the water side module are easy to design as two independent integrated modules with the advantages of lightweight and miniaturization. The two independent integrated modules facilitate the overall vehicle layout design and integration design, while improving the utilization rate of the vehicle's internal space.

[0037] 2) The refrigerant circuit design of the electric vehicle thermal management system in this utility model adopts a combination of a regenerative module and a three-way proportional valve, which can quickly adjust to meet the needs of efficient cooling and heating. At the same time, the refrigerant side principle design enhances the system's control flexibility and the system's wide temperature range practicality, and also meets the requirements of ultra-low temperature heating and ultra-low temperature rapid start-up.

[0038] 3) The thermal management system of this utility model has a variety of low-temperature heating heat sources and can select multiple combination modes, thereby accurately recovering each heat source under different operating conditions and minimizing the energy consumption of electric vehicle thermal management.

[0039] 4) The thermal management system of this utility model has multiple modes to meet user needs in the same scenario. According to the external environmental conditions, it can automatically select the matching model by priority sorting. The design has a safety redundancy design to avoid vehicle shutdown caused by single-mode failure and improve the vehicle's survival and endurance in the event of failure.

[0040] 6) The water circuit design in the electric vehicle thermal management system of this utility model mainly adopts three-way water valve, four-way water valve and multi-way connector. The system components are easy to obtain and the control is easy.

[0041] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0043] Fig. 1 This is a schematic diagram of the automotive thermal management system of this utility model.

[0044] Fig. 2 This is a schematic diagram of the natural heat dissipation mode of this utility model in a battery charging scenario.

[0045] Fig. 3The utility model discloses a system in cooling liquid circuit emptying mode's working schematic diagram.

[0046] Fig. 4 The utility model discloses an integrated plate heat exchanger's principle schematic diagram.

[0047] Reference Signs: 1-electric compressor;2-integrated plate heat exchanger;3-first battery cooler;4-second battery cooler;5-three way proportional valve;6-first electronic expansion valve;7-second electronic expansion valve;8-third electronic expansion valve;9-motor electronic control system;10-low temperature radiator;11-electronic fan;12-blower;13-cold air core;14-warm air core;15-battery system;16-first water pump;17-second water pump;18-third water pump;19-first three way water valve;20-second three way water valve;21-third three way water valve;22-fourth three way water valve;23-fifth three way water valve;24-sixth three way water valve;25-seventh three way water valve;26-first four way water valve;27-second four way water valve;28-air temperature sensor;29-water temperature sensor;30-water temperature sensor;31-water temperature sensor;32-water temperature sensor;33-water temperature sensor;34-kettle;35-temperature pressure sensor;36-temperature pressure sensor;37-temperature pressure sensor;38-temperature pressure sensor. DETAILED DESCRIPTION

[0048] The utility model discloses an integrated plate heat exchanger's principle schematic diagram.

[0049] Among them, the drawing is only used for example explanation, and the representation is only schematic drawing, and not the real object drawing, and can not be understood as the limitation to the utility model;In order to better explain the embodiment of the utility model, some components of the drawing will be omitted, enlarged or reduced, and do not represent the size of actual product;For the person skilled in the art, some known structure and its explanation in the drawing can be omitted, and it is understandable.

[0050] The same or similar reference signs in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present application, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0051] Please refer to Figs. 1-4 It is a kind of automobile thermal management system, including full indirect refrigerant circuit, coolant circuit, motor control system 9, battery system 15, HVAC assembly;It further includes control system, full indirect refrigerant circuit, coolant circuit, motor control system, battery system, HVAC assembly are controlled by control system.

[0052] Full indirect refrigerant circuit includes electric compressor 1, integrated plate heat exchanger 2, first battery cooler 3, second battery cooler 4, three-way proportional valve 5;

[0053] Integrated plate heat exchanger 2 includes water-cooled condensing module and heat recovery module, cooling liquid channel and refrigerant channel are arranged in water-cooled condensing module in the form of alternate layering between each other;Refrigerant high-pressure channel and refrigerant low-pressure channel are arranged in heat recovery module in the form of alternate layering between each other, the refrigerant channel in water-cooled condensing module is communicated with the refrigerant high-pressure channel in heat recovery module;Cooling liquid in cooling liquid channel cools high-pressure refrigerant in refrigerant channel, water-cooled high-pressure refrigerant enters refrigerant high-pressure channel, low-pressure refrigerant in refrigerant low-pressure channel is evaporated twice to absorb heat to cool high-pressure refrigerant in refrigerant high-pressure channel into supercooled liquid refrigerant, supercooled liquid refrigerant flows out from refrigerant high-pressure outlet;

[0054] The first battery cooler 3 and the second battery cooler 4 are arranged in parallel, the refrigerant inlets of the first battery cooler 3 and the second battery cooler 4 are communicated with the refrigerant high-pressure outlet of the integrated plate heat exchanger 2, and the refrigerant inlets of the first battery cooler 3 and the second battery cooler 4 are respectively provided with the second electronic expansion valve 7 and the third electronic expansion valve 8; the refrigerant outlets of the first battery cooler 3 and the second battery cooler 4 are connected to one interface of the three-way proportional valve 5 after being gathered, the other two interfaces of the three-way proportional valve 5 are respectively connected to the inlet of the electric compressor 1 and the refrigerant low-pressure inlet of the integrated plate heat exchanger 2, the refrigerant low-pressure outlet of the integrated plate heat exchanger 2 is connected to the inlet of the electric compressor 1; the outlet of the electric compressor 1 is divided into two paths, one path is connected to the refrigerant high-pressure inlet of the integrated plate heat exchanger 2, and the other path is connected to the inlet of the electric compressor 1 through the large-diameter two-section electronic expansion valve 6; the temperature and pressure sensor 36 and the temperature and pressure sensor 37 are respectively installed on the refrigerant outlets of the first battery cooler 3 and the second battery cooler 4, and the temperature and pressure sensor 35 and the temperature and pressure sensor 38 are respectively installed on the inlet and the outlet of the electric compressor 1.

[0055] The HVAC assembly comprises a blower 12, a cold air core 13 and a warm air core 14.

[0056] The cooling liquid circuit comprises an electric motor control system 9, a low-temperature radiator 10, an electronic fan 11, a blower 12, a cold air core 13, a warm air core 14, a battery system 15, a first water pump 16, a second water pump 17, a third water pump 18, a first three-way water valve 19, a second three-way water valve 20, a third three-way water valve 21, a fourth three-way water valve 22, a fifth three-way water valve 23, a sixth three-way water valve 24, a seventh three-way water valve 25, a first four-way water valve 26, a second four-way water valve 27, an integrated plate heat exchanger 2, a first battery cooler 3 and a second battery cooler 4; the cooling liquid circuit and the refrigerant circuit are coupled through the integrated plate heat exchanger 2, the first battery cooler 3 and the second battery cooler 4. An air temperature sensor 28 is installed on the side of the electronic fan 11, a water temperature sensor 29 is installed on the pipeline between the first three-way water valve 19 and the second three-way water valve 20, a water temperature sensor 30 is installed on the cooling liquid outlet of the integrated plate heat exchanger 2, and a water temperature sensor 31 and a water temperature sensor 32 are respectively installed on the cooling liquid outlets of the first battery cooler 3 and the second battery cooler 4; a water temperature sensor 33 is installed on the cooling liquid outlet of the battery system 15.

[0057] In the cooling liquid circuit, by controlling the first three-way water valve 19, the second three-way water valve 20, the third three-way water valve 21, the sixth three-way water valve 24, the first four-way water valve 26 and the second four-way water valve 27, the cooling liquid forms different circulation directions, so as to perform thermal management on the passenger compartment, the electric motor control system 9 and the battery system 15; a water kettle 34 is connected to the cooling liquid circuit for cooling liquid supplement.

[0058] Wherein, the first water pump 16, the integrated plate heat exchanger 2, the first three-way water valve 19, the second three-way water valve 20, the low-temperature radiator 10, the motor electronic control system 9, the third three-way water valve 21 are sequentially communicated in sequence of cooling liquid flow direction through the cooling liquid pipeline to form the first cooling liquid circuit;

[0059] The first water pump 16, the integrated plate heat exchanger 2, the first three-way water valve 19, the second three-way water valve 20, the motor electronic control system 9, the third three-way water valve 21 are sequentially communicated in sequence of cooling liquid flow direction to form the second cooling liquid circuit;

[0060] The first water pump 16, the integrated plate heat exchanger 2, the sixth three-way water valve 24, the warm air core body 14, the seventh three-way water valve 25 are sequentially communicated in sequence of cooling liquid flow direction through the cooling liquid pipeline to form the third cooling liquid circuit;

[0061] The first water pump 16, the integrated plate heat exchanger 2, the sixth three-way water valve 24, the battery system 15, the seventh three-way water valve 25 are sequentially communicated in sequence of cooling liquid flow direction through the cooling liquid pipeline to form the fourth cooling liquid circuit;

[0062] The second water pump 17, the first battery cooler 3, the first four-way water valve 26, the cold air core body 13, the second four-way water valve 27 are sequentially communicated in sequence of cooling liquid flow direction through the cooling liquid pipeline to form the fifth cooling liquid circuit;

[0063] The second water pump 17, the first battery cooler 3, the first four-way water valve 26, the battery system 15, the second four-way water valve 27 are sequentially communicated in sequence of cooling liquid flow direction through the cooling liquid pipeline to form the sixth cooling liquid circuit;

[0064] The second water pump 17, the first battery cooler 3, the first four-way water valve 26, the first three-way water valve 19, the second three-way water valve 20, the low-temperature radiator 10, the motor electronic control system 9, the third three-way water valve 21, the second four-way water valve 27 are sequentially communicated in sequence of cooling liquid flow direction through the cooling liquid pipeline to form the seventh cooling liquid circuit;

[0065] The second water pump 17, the first battery cooler 3, the first four-way water valve 26, the first three-way water valve 19, the second three-way water valve 20, the motor electronic control system 9, the third three-way water valve 21, the second four-way water valve 27 are sequentially communicated in sequence of cooling liquid flow direction through the cooling liquid pipeline to form the eighth cooling liquid circuit;

[0066] The third water pump 18, the second battery cooler 4, the fourth three-way water valve 22, the cold air core body 13, the fifth three-way water valve 23 are sequentially communicated in sequence of cooling liquid flow direction through the cooling liquid pipeline to form the ninth cooling liquid circuit;

[0067] The third water pump 18, the second battery cooler 4, the fourth three-way water valve 22, the battery system 15, and the fifth three-way water valve 23 are sequentially connected in sequence by the cooling liquid pipeline to form a tenth cooling liquid circuit.

[0068] The second water pump 17, the first battery cooler 3, the first four-way water valve 26, the first three-way water valve 19, the second three-way water valve 20, the low-temperature radiator 10, the motor electronic control system 9, the third three-way water valve 21, the integrated plate heat exchanger 2, the sixth three-way water valve 24, the battery system 15, and the second four-way water valve 27 are sequentially connected in sequence by the cooling liquid pipeline to form an eleventh cooling liquid circuit.

[0069] When the thermal management system faces a conventional refrigeration request, the refrigerant at the outlet of the first battery cooler 3 or the second battery cooler 4 is regulated by the three-way proportional valve 5 to enter the inlet end of the heat recovery module of the integrated plate heat exchanger 2, and then flows through the heat recovery module and returns to the inlet of the electric compressor 1, which can improve the system refrigeration capacity and the system COP value; if the system thermal management faces a heating request, the refrigerant at the outlet of the first battery cooler 3 or the second battery cooler 4 needs to be regulated by the three-way proportional valve 5 to directly enter the inlet of the electric compressor 1, so as to avoid the low-temperature and low-pressure refrigerant from absorbing the heat of the integrated plate heat exchanger 2. When the refrigerant system adopts an ultra-low-temperature starting or ultra-low-temperature triangular cycle heating mode, the system needs to reduce the pressure loss at the rear end of the expansion valve, and then improve the upper limit value of the compressor speed that can be operated, at this time, the refrigerant mode needs to be switched, and the corresponding adjustment of the outside cooling liquid circuit mode is needed.

[0070] The automobile thermal management system includes multiple functional modes, each of which is realized by one or more sub-modes; the sub-modes include:

[0071] The first sub-mode: by switching the first three-way water valve 19, the second three-way water valve 20, and the third three-way water valve 21, the cooling liquid circulates in the first cooling liquid circuit, the cooling liquid with heat in the integrated plate heat exchanger 2 is distributed from a certain inlet of the three-way water valve 19 to the three-way water valve 20, and then is distributed to the low-temperature radiator 10 and completes convective heat exchange with the surrounding air under the work of the corresponding electronic fan 11 and is cooled and cooled, the cooled cooling liquid flows into the motor electronic control system 9 again to complete the cooling or uniform temperature requirement of the motor, and then is distributed back to the first water pump 16 and is pumped into the plate heat exchanger 2 to form a complete circulation mode.

[0072] The second sub-mode: by switching the first three-way water valve 19, the second three-way water valve 20 and the third three-way water valve 21, the cooling liquid circulates in the second cooling liquid circuit; the cooling liquid is distributed by the three-way water valve 20 and directly flows into the motor electric control system 9 to warm up or equalize the temperature of the motor, at this time, the cooling liquid does not pass through the external low-temperature radiator 10, which can meet the request of the system to avoid the low-temperature air inlet of the external low-temperature radiator to rapidly cool the antifreeze.

[0073] The third sub-mode: by switching the first three-way water valve 19, the sixth three-way water valve 24 and the seventh three-way water valve 25, the cooling liquid circulates in the third cooling liquid circuit, and the antifreeze with heat in the integrated plate heat exchanger 2 is provided to the passenger cabin heating, specifically, the antifreeze with heat in the integrated plate heat exchanger 2 is distributed by the sixth three-way water valve 24 into the heater core HTC 14 in the HVAC assembly, under the working push of the blower 12, the antifreeze flowing into the HTC core inside is cooled under the forced convection heat exchange of the air side, and at the same time, the air side air is heated to heat the passenger cabin, the cooling liquid cooled from the heater core is distributed by the seventh three-way water valve 25 and flows back to the first water pump 16, and then pressurizes back to the integrated plate heat exchanger 2 to complete the circulation mode of the passenger cabin heating function.

[0074] The fourth sub-mode: by switching the first three-way water valve 19, the sixth three-way water valve 24 and the seventh three-way water valve 25, the cooling liquid circulates in the fourth cooling liquid circuit, and the fluid with heat in the integrated plate heat exchanger 2 is transported to preheat the battery system 15 to ensure the best activity of the battery module, specifically, the first water pump 16 pumps the fluid with heat in the plate heat exchanger 2 into the battery system 15 distributed by the sixth three-way water valve 24, and after the cooling liquid completes the heating and cooling of the battery module, it flows into the seventh three-way water valve 25, and then is distributed back into the first water pump 16, thereby pressurizing back to the plate heat exchanger 2 to build a complete closed circulation loop for preheating the battery system 15 to stimulate the battery activity scene requirement.

[0075] Fifth sub-mode: through switching the fourth three-way water valve 22, the fifth three-way water valve 23, the first four-way water valve 26, the second four-way water valve 27, the coolant circulates in the fifth coolant circuit; the coolant is pumped into the water side of the first battery cooler 3 by the electronic water pump 17 to obtain the cold energy input by the refrigerant circuit, and then circulates into the first three-way water valve 26, and then the coolant with cold energy flows into the HVAC cold air core 13 and is heated by the air side convection heat exchange, and the heated coolant discharged from the cold air core 13 is distributed by the second three-way water valve 27 and flows into the second water pump 17, so that the water side forms a complete circulation loop. The air cooled by the HVAC assembly corresponding to the cold water core air side is distributed to complete the cooling and dehumidification of the passenger compartment or the defogging of the front windshield of the passenger compartment. In winter, the dehumidification of the passenger compartment combined with the heating function can complete the heat recovery in the cabin, which has the effects of economic energy saving and reducing the energy consumption of the whole vehicle.

[0076] Sixth sub-mode: through switching the sixth three-way water valve 24, the seventh three-way water valve 25, the first four-way water valve 26, the second four-way water valve 27, the coolant circulates in the sixth coolant circuit, and the first electronic expansion valve 7 is opened to enable the evaporation function of the first battery cooler 3; at this time, the coolant with cold energy output from the first battery cooler 3 can enter the battery system 15 under the mode switching of the first four-way water valve 26, thereby completing the cooling function of the electric module. The coolant flowing out of the battery system 15 after absorbing heat and being heated is again distributed by the second four-way water valve 27 back to the inlet of the second water pump 17, and then flows into the first battery cooler 3 by the pressure increase to complete a circulation mode. When the evaporation function of the first battery cooler 3 is enabled, the coolant in this mode has cold energy and can cool the battery system 15.

[0077] Seventh sub-mode: through switching the sixth three-way water valve 24, the seventh three-way water valve 25, the first four-way water valve 26, the second four-way water valve 27, the coolant circulates in the sixth coolant circuit, and the first electronic expansion valve 7 is closed to close the evaporation function of the first battery cooler 3; when the second electronic expansion valve 8 is completely closed and the second battery cooler 4 does not have the evaporation function, this mode can meet the request of the battery system 15 to be uniformed.

[0078] Eighth sub-mode: through switching the first three-way water valve 19, the second three-way water valve 20, the third three-way water valve 21, the sixth three-way water valve 24, the seventh three-way water valve 25, the first four-way water valve 26, the second four-way water valve 27, the coolant circulates in the seventh coolant circuit; the coolant with cold energy flows out from the water side of the first battery cooler 3 and is adjusted by the first four-way water valve 26 to flow into the first three-way water valve 19, and then flows out and enters the low-temperature radiator 10 again through the adjustment of the second three-way water valve 20, the coolant with lower temperature is heated to obtain the first heat in the low-temperature radiator 10 and then enters the motor electronic control system 9 to obtain the second heat, and finally returns to the second water pump 17 and the second battery cooler 4 through the third three-way water valve 21 and the second four-way water valve 27.

[0079] Ninth sub-mode: through switching the first three-way water valve 19, the second three-way water valve 20, the third three-way water valve 21, the sixth three-way water valve 24, the seventh three-way water valve 25, the first four-way water valve 26, the second four-way water valve 27, the coolant circulates in the eighth coolant circuit; the coolant does not pass through the low-temperature radiator 10 and directly returns to the motor electronic control system 9 from the second three-way water valve 20, this mode is suitable for use when the ambient temperature is low and cannot absorb the heat of the ambient air, at this time only the motor electronic control system 9 can provide a heat source for the heating demand of the system.

[0080] Tenth sub-mode: through switching the fourth three-way water valve 22 and the fifth three-way water valve 23, the coolant circulates in the ninth coolant circuit; the coolant pressurized by the third water pump 18 flows into the second battery cooler 4 and exchanges heat to have a certain cold energy, and after flowing out, the coolant is distributed into the cold air core 13 by the fourth three-way water valve 22, absorbs and heats the coolant flowing out, and then the coolant is distributed back into the third water pump 18 by the fifth three-way water valve 23 to build a complete circulation branch. In the HVAC assembly, the cold air core 13 exchanges heat with the coolant side to cool down, and then the distribution of the HVAC assembly can realize the function of dehumidification and refrigeration of the passenger compartment; in addition, in winter, fine passenger compartment heat energy recycling can be realized to reduce the energy consumption of the whole vehicle and improve the battery endurance mileage.

[0081] Eleventh sub-mode: by switching the fourth three-way water valve 22, the fifth three-way water valve 23, the sixth three-way water valve 24, the seventh three-way water valve 25, the first four-way water valve 26, the second four-way water valve 27, the cooling liquid circulates in the tenth cooling liquid circuit, and the second electronic expansion valve 8 is opened, and the evaporation function of the second battery cooler 4 is enabled; the antifreeze liquid with cold energy flowing out of the second battery cooler 4 is distributed into the battery system 15 by the fourth three-way water valve 22, which can realize the cooling request of the battery module, and the cooling liquid flowing out after absorbing the heat of the battery is distributed by the fifth three-way water valve 23 to pass through the third water pump 18 and the second battery cooler 4 in turn, thereby constructing a complete cooling liquid circulation branch.

[0082] Twelfth sub-mode: by switching the fourth three-way water valve 22, the fifth three-way water valve 23, the sixth three-way water valve 24, the seventh three-way water valve 25, the first four-way water valve 26, the second four-way water valve 27, the cooling liquid circulates in the tenth cooling liquid circuit, and the second electronic expansion valve 8 is closed, and the evaporation function of the second battery cooler 4 is closed; when the second electronic expansion valve 8 is closed, the second battery cooler 4 has no evaporation function, and the water side only has a flow function, which can meet the uniform temperature demand of the battery mode.

[0083] Thirteenth sub-mode: by switching the first three-way water valve 19, the second three-way water valve 20, the third three-way water valve 21, the fourth three-way water valve 22, the fifth three-way water valve 23, the sixth three-way water valve 24, the seventh three-way water valve 25, the first four-way water valve 26, and the second four-way water valve 27, the cooling liquid circulates in the eleventh cooling liquid circuit; the higher temperature cooling liquid flowing out of the battery system 15 is distributed into the second water pump 17 by the second four-way water valve 27, is pressurized, and then the pressurized cooling liquid is distributed into the low-temperature radiator 10 located in the front compartment of the vehicle by the first four-way water valve 26, the first three-way water valve 19, and the second three-way water valve 20 in turn, and the low-temperature air with a large temperature difference with the cooling liquid is forced to cool the cooling liquid located in the low-temperature radiator by the operation of the electronic fan 11, and the cooled cooling liquid flows out of the motor electronic control system and is distributed into the first water pump 16 by the third three-way water valve 21, then flows into the integrated plate heat exchanger 2 and is distributed by the sixth three-way water valve 24 to return to the battery system 15 again, thereby constructing a complete natural heat dissipation circulation mode in the battery charging mode.

[0084] In combination with the actual situation of the user end, the present embodiment proposes the following several important working modes:

[0085] When a single passenger compartment requests refrigeration and the battery system 15 is in the uniform temperature mode, after the full indirect refrigerant circuit is opened, the cooling liquid circuit is enabled in the following manner:

[0086] Turning on the second electronic expansion valve 7, turning off the third electronic expansion valve 8, simultaneously enabling the first sub-mode, the fifth sub-mode, and the twelfth sub-mode in the cooling liquid circuit, using the evaporation refrigeration function of the first battery cooler 3 to meet the passenger compartment refrigeration demand; or

[0087] Turning on the third electronic expansion valve 8, turning off the second electronic expansion valve 7, simultaneously enabling the first sub-mode, the tenth sub-mode, and the seventh sub-mode in the cooling liquid circuit, using the evaporation refrigeration function of the second battery cooler 4 to meet the passenger compartment refrigeration demand.

[0088] When the passenger compartment needs emergency cooling or the front cabin glass needs defogging, the full-indirect refrigerant circuit is enabled, and the second electronic expansion valve 7 and the third electronic expansion valve 8 are controlled, the first sub-mode, the fifth sub-mode, and the tenth sub-mode are simultaneously enabled in the cooling liquid circuit, the first battery cooler 3 and the second battery cooler 4 are simultaneously evaporated and refrigerated, and the request for rapid cooling is realized through the cold air core 13.

[0089] When the passenger compartment and the battery system 15 simultaneously request refrigeration, the first sub-mode, the fifth sub-mode, and the eleventh sub-mode are simultaneously enabled in the cooling liquid circuit, or the first sub-mode, the tenth sub-mode, and the sixth sub-mode are enabled, realizing the differentiated temperature request of using one of the first battery cooler 3 and the second battery cooler 4 for passenger compartment refrigeration and the other for battery refrigeration.

[0090] When the battery system 15 needs refrigeration in slow charging mode, after the full-indirect refrigerant circuit refrigeration cycle is started:

[0091] In the cooling liquid circuit, the first sub-mode and the sixth sub-mode are simultaneously enabled, the evaporation refrigeration function of the first battery cooler 3 is used to realize the forced refrigeration demand of the battery module, or

[0092] In the cooling liquid circuit, the first sub-mode and the eleventh sub-mode are simultaneously enabled, the evaporation refrigeration function of the second battery cooler 4 is used to realize the forced refrigeration demand of the battery module.

[0093] When the battery system 15 is in fast charging mode and needs larger refrigeration demand, after the full-indirect refrigerant circuit refrigeration cycle is started, the first sub-mode, the sixth sub-mode, and the eleventh sub-mode are simultaneously enabled in the cooling liquid circuit, the first battery cooler 3 and the second battery cooler 4 are simultaneously evaporated and refrigerated, realizing the rapid cooling of the charging battery module.

[0094] In the winter battery charging mode, if the battery has a cooling request, due to the large heat exchange temperature difference with the environment temperature, at this time the full-indirect refrigerant circuit is stopped, the thirteenth sub-mode is started, and only the low-temperature radiator 10 is used to meet the cooling request of the charging battery module, realizing the overall economic and energy-saving operation mode.

[0095] When the passenger cabin faces the demand of heating in cold weather, after the full indirect refrigerant circuit is started, the cooling liquid circuit starts the third sub-mode to heat the passenger cabin, and starts any one or a combination of the eighth sub-mode, the tenth sub-mode, and the eleventh sub-mode to use the heat of the ambient temperature, the motor control system, the battery system, or the passenger cabin dehumidification as a heat source.

[0096] When the passenger cabin and the battery module both make a heating request, the refrigeration cycle of the full indirect refrigerant circuit is started, and the third sub-mode and the fourth sub-mode in the cooling liquid circuit are started to support the heating demand of the passenger cabin and the battery system; at this time, the eighth sub-mode and / or the tenth sub-mode are started to absorb or recover the heat of the ambient temperature, the motor control system, or the passenger cabin dehumidification as a heat source.

[0097] When only the battery uniform temperature demand is faced:

[0098] In the case of starting the full indirect refrigerant circuit, the evaporation function of the first battery cooler 3 is closed, the evaporation function of the second battery cooler 4 is started, the seventh sub-mode in the cooling liquid circuit is started, or

[0099] In the case of starting the full indirect refrigerant circuit, the evaporation function of the first battery cooler 3 is started, the evaporation function of the second battery cooler 4 is closed, and the twelfth sub-mode in the cooling liquid circuit is started, or

[0100] When the full indirect refrigerant circuit is in a complete stop state, the seventh sub-mode and / or the twelfth sub-mode are started to realize the battery uniform temperature function.

[0101] When the weather is humid and heating is needed, and the passenger cabin needs dehumidification and heating, at this time:

[0102] When the battery temperature is high, the third sub-mode, the fifth sub-mode, and the eleventh sub-mode in the cooling liquid circuit are started, or the third sub-mode, the tenth sub-mode, and the sixth sub-mode are started, one of the first battery cooler 3 and the second battery cooler 4 is used to realize the passenger cabin dehumidification function, and the other is used to realize the battery system cooling function;

[0103] When the battery temperature is low and the battery needs to be preheated and warmed up, and the ambient temperature is suitable for the low-temperature radiator to absorb heat, the third sub-mode, the fourth sub-mode, the tenth sub-mode, and the eighth sub-mode are started, and when the ambient temperature is not suitable for the low-temperature radiator to absorb heat, the third sub-mode, the fourth sub-mode, the tenth sub-mode, and the ninth sub-mode are started.

[0104] When the temperature difference inside the whole vehicle battery box is small, and the evaporation function of the first battery cooler 3 in the full indirect refrigerant circuit is closed, the third sub-mode, the tenth sub-mode, and the seventh sub-mode in the cooling liquid circuit are simultaneously opened; or, when the temperature difference inside the whole vehicle battery box is small, and the evaporation function of the second battery cooler 4 in the full indirect refrigerant circuit is closed, the third sub-mode, the fifth sub-mode, and the twelfth sub-mode are simultaneously opened to support the request for battery temperature equalization.

[0105] When the vehicle is in an environment with high humidity, the passenger compartment needs to be cooled and dehumidified, and the battery temperature is high to propose a cooling demand, the sixth sub-mode and the tenth sub-mode in the cooling liquid circuit are simultaneously enabled, the first battery cooler 3 is used to cool the battery, and the second battery cooler 4 is used to defog the front cabin of the passenger compartment.

[0106] When the ambient temperature and the heat of the motor control system are used as heat sources, the sixth sub-mode, the eighth sub-mode, and the tenth sub-mode in the cooling liquid circuit are simultaneously enabled, the first battery cooler 3 is used to cool the battery, and the second battery cooler 4 is used to defog the front cabin of the passenger compartment.

[0107] When only the heat of the motor control system is used as a heat source, the sixth sub-mode, the ninth sub-mode, and the tenth sub-mode in the cooling liquid circuit are simultaneously enabled, the first battery cooler 3 is used to cool the battery, and the second battery cooler 4 is used to defog the front cabin of the passenger compartment.

[0108] When the vehicle is in an environment with high humidity, the passenger compartment needs to be cooled and dehumidified, and when the battery temperature is high to propose a cooling demand, the eleventh sub-mode and the fifth sub-mode in the cooling liquid circuit are simultaneously enabled, the second battery cooler 4 is used to cool the battery, and the first battery cooler 3 is used to defog the front cabin of the passenger compartment.

[0109] When the ambient temperature and the heat of the motor control system are used as heat sources, the eleventh sub-mode, the eighth sub-mode, and the fifth sub-mode in the cooling liquid circuit are simultaneously enabled, the second battery cooler 4 is used to cool the battery, and the first battery cooler 3 is used to defog the front cabin of the passenger compartment.

[0110] When only the heat of the motor control system is used as a heat source, the eleventh sub-mode, the ninth sub-mode, and the fifth sub-mode in the cooling liquid circuit are simultaneously enabled, the second battery cooler 4 is used to cool the battery, and the first battery cooler 3 is used to defog the front cabin of the passenger compartment.

[0111] When the vehicle is in an environment with high humidity, the passenger compartment needs to be cooled and dehumidified, and when the battery temperature is low to propose a preheating demand:

[0112] When the heat of the ambient temperature, the motor electric control system and the passenger cabin dehumidification is used as the heat source, the fourth sub-mode, the eighth sub-mode and the fifth sub-mode are simultaneously enabled in the cooling liquid circuit, or the fourth sub-mode, the eighth sub-mode and the tenth sub-mode are simultaneously enabled.

[0113] When the heat of the motor electric control system and the passenger cabin dehumidification is used as the heat source, the fourth sub-mode, the ninth sub-mode and the fifth sub-mode are simultaneously enabled in the cooling liquid circuit, or the fourth sub-mode, the ninth sub-mode and the tenth sub-mode are simultaneously enabled.

[0114] When the heat of the passenger cabin dehumidification is used as the heat source, the fourth sub-mode, the fifth sub-mode or the fourth sub-mode and the tenth sub-mode are simultaneously enabled in the cooling liquid circuit.

[0115] When the vehicle is in a humid environment, the passenger cabin needs to be cooled and dehumidified, and when the battery temperature is in the optimal working temperature range and the battery itself only needs to be uniformed:

[0116] When the heat of the ambient temperature and the motor electric control system is used as the heat source, and the second battery cooler 4 is closed for evaporation, the third sub-mode, the fifth sub-mode, the eighth sub-mode and the twelfth sub-mode are simultaneously enabled in the cooling liquid circuit.

[0117] When the heat of the motor electric control system is used as the heat source, and the second battery cooler 4 is closed for evaporation, the third sub-mode, the fifth sub-mode, the ninth sub-mode and the twelfth sub-mode are simultaneously enabled in the cooling liquid circuit.

[0118] When the heat of the second battery cooler 4 for passenger cabin dehumidification is used as the heat source, the third sub-mode, the tenth sub-mode and the seventh sub-mode are simultaneously enabled in the cooling liquid circuit.

[0119] When the vehicle front cabin glass is frosted and needs to be heated and defrosted, and the battery temperature is high and needs to be cooled, the full-indirect refrigerant circuit is enabled, and at the same time:

[0120] When the heat of the battery system is used as the heat source without other heat sources, the third sub-mode, the sixth sub-mode or the third sub-mode and the eleventh sub-mode are simultaneously enabled in the cooling liquid circuit.

[0121] When the heat of the motor electric control system is used as an auxiliary heat source, the third sub-mode, the sixth sub-mode and the ninth sub-mode or the third sub-mode, the eleventh sub-mode and the ninth sub-mode are simultaneously enabled in the cooling liquid circuit.

[0122] When the ambient temperature and the heat of the motor control system are used as auxiliary heat sources, the third sub-mode, the sixth sub-mode and the eighth sub-mode are simultaneously enabled in the cooling liquid circuit, or the third sub-mode, the eleventh sub-mode and the eighth sub-mode are simultaneously enabled.

[0123] When the vehicle front cabin glass is frosted, the front cabin glass needs to be heated and defrosted, and the battery temperature is high and preheating is required:

[0124] When the ambient low temperature environment and the heat of the motor control system are used as heat sources, the third sub-mode, the fourth sub-mode and the eighth sub-mode are simultaneously enabled in the cooling liquid circuit.

[0125] When only the heat of the motor control system is used as a heat source, the third sub-mode, the fourth sub-mode and the ninth sub-mode are simultaneously enabled in the cooling liquid circuit.

[0126] When the vehicle front cabin glass is frosted, the front cabin glass needs to be heated and defrosted, and the battery internal temperature is appropriate and only needs to be uniform:

[0127] When the ambient low temperature environment and the heat of the motor control system are used as heat sources, the third sub-mode, the eighth sub-mode and the twelfth sub-mode are simultaneously enabled in the cooling liquid circuit.

[0128] When only the heat of the motor control system is used as a heat source, the third sub-mode, the ninth sub-mode and the twelfth sub-mode are simultaneously enabled in the cooling liquid circuit.

[0129] An automobile comprises the automobile thermal management system in the embodiment.

[0130] Finally, it should be explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. An automotive thermal management system, characterized by: The full indirect refrigerant circuit, the coolant circuit, the motor electronic control system, the battery system and the HVAC assembly are included. The full indirect refrigerant circuit includes an electric compressor, an integrated plate heat exchanger, a first battery cooler, a second battery cooler and a three-way proportional valve. The integrated plate heat exchanger includes a water-cooled condensing module and a heat recovery module, the water-cooled condensing module is provided with cooling liquid channels and refrigerant channels arranged in an alternating and stacked manner, the heat recovery module is provided with refrigerant high-pressure channels and refrigerant low-pressure channels arranged in an alternating and stacked manner, the refrigerant channels in the water-cooled condensing module are communicated with the refrigerant high-pressure channels in the heat recovery module, the cooling liquid in the cooling liquid channels cools the high-pressure refrigerant in the refrigerant channels, the water-cooled high-pressure refrigerant enters the refrigerant high-pressure channels, the low-pressure refrigerant in the refrigerant low-pressure channels is secondarily evaporated to absorb heat to cool the high-pressure refrigerant in the refrigerant high-pressure channels into supercooled liquid refrigerant, and the supercooled liquid refrigerant flows out from the refrigerant high-pressure outlet. The first battery cooler and the second battery cooler are arranged in parallel, the refrigerant inlets of the first battery cooler and the second battery cooler are communicated with the refrigerant high-pressure outlet of the integrated plate heat exchanger, the refrigerant inlets of the first battery cooler and the second battery cooler are respectively provided with second electronic expansion valves and third electronic expansion valves, the refrigerant outlets of the first battery cooler and the second battery cooler are connected to one interface of the three-way proportional valve after being collected, the other two interfaces of the three-way proportional valve are respectively connected to the inlet of the electric compressor and the refrigerant low-pressure inlet of the integrated plate heat exchanger, and the refrigerant low-pressure outlet of the integrated plate heat exchanger is connected to the inlet of the electric compressor; the outlet of the electric compressor is divided into two paths, one path is connected to the refrigerant high-pressure inlet of the integrated plate heat exchanger, and the other path is connected to the inlet of the electric compressor through a large-diameter two-section electronic expansion valve. The HVAC assembly includes a blower, a cold air core and a warm air core. The coolant circuit includes the motor electronic control system, a low-temperature radiator, an electronic fan, the blower, the cold air core, the warm air core, the battery system, a first water pump, a second water pump, a third water pump, a first three-way water valve, a second three-way water valve, a third three-way water valve, a fourth three-way water valve, a fifth three-way water valve, a sixth three-way water valve, a seventh three-way water valve, a first four-way water valve, a second four-way water valve, the integrated plate heat exchanger, the first battery cooler and the second battery cooler; the refrigerant circuit and the coolant circuit are heat-coupled through the integrated plate heat exchanger, the first battery cooler and the second battery cooler. In the coolant circuit, the coolant forms different circulation directions by controlling the first three-way water valve, the second three-way water valve, the third three-way water valve, the sixth three-way water valve, the first four-way water valve and the second four-way water valve, so as to perform thermal management on the passenger compartment, the motor electronic control system and the battery system. The first water pump, the integrated plate heat exchanger, the first three-way water valve, the second three-way water valve, the low-temperature radiator, the motor electronic control system and the third three-way water valve are sequentially communicated in the order of the cooling liquid flow direction through a cooling liquid pipeline to form a first cooling liquid circuit. The first water pump, the integrated plate heat exchanger, the first three-way water valve, the second three-way water valve, the motor electric control system and the third three-way water valve are sequentially connected in sequence of cooling liquid flow direction to form a second cooling liquid circuit. The first water pump, the integrated plate heat exchanger, the sixth three-way water valve, the warm air core body and the seventh three-way water valve are sequentially connected in sequence of cooling liquid flow direction to form a third cooling liquid circuit. The first water pump, the integrated plate heat exchanger, the sixth three-way water valve, the battery system and the seventh three-way water valve are sequentially connected in sequence of cooling liquid flow direction to form a fourth cooling liquid circuit. The second water pump, the first battery cooler, the first four-way water valve, the cold air core body, the second four-way water valve are sequentially connected in sequence of cooling liquid flow direction to form a fifth cooling liquid circuit. The second water pump, the first battery cooler, the first four-way water valve, the battery system and the second four-way water valve are sequentially connected in sequence of cooling liquid flow direction to form a sixth cooling liquid circuit. The second water pump, the first battery cooler, the first four-way water valve, the first three-way water valve, the second three-way water valve, the low-temperature radiator, the motor electric control system, the third three-way water valve and the second four-way water valve are sequentially connected in sequence of cooling liquid flow direction to form a seventh cooling liquid circuit. The second water pump, the first battery cooler, the first four-way water valve, the first three-way water valve, the second three-way water valve, the motor electric control system, the third three-way water valve and the second four-way water valve are sequentially connected in sequence of cooling liquid flow direction to form an eighth cooling liquid circuit. The third water pump, the second battery cooler, the fourth three-way water valve, the cold air core body and the fifth three-way water valve are sequentially connected in sequence of cooling liquid flow direction to form a ninth cooling liquid circuit. The third water pump, the second battery cooler, the fourth three-way water valve, the battery system and the fifth three-way water valve are sequentially connected in sequence of cooling liquid flow direction to form a tenth cooling liquid circuit. The second water pump, the first battery cooler, the first four-way water valve, the first three-way water valve, the second three-way water valve, the low-temperature radiator, the motor electric control system, the third three-way water valve, the integrated plate heat exchanger, the sixth three-way water valve, the battery system and the second four-way water valve are sequentially connected in sequence of cooling liquid flow direction to form an eleventh cooling liquid circuit.

2. The automotive thermal management system of claim 1, wherein: Temperature and pressure sensors are respectively installed on the refrigerant outlets of the first battery cooler and the second battery cooler, and temperature and pressure sensors are respectively installed on the inlet and outlet of the electric compressor.

3. The automotive thermal management system of claim 1, wherein: An air temperature sensor is installed on the electronic fan side, a water temperature sensor is installed on the pipeline between the first three-way water valve and the second three-way water valve, a water temperature sensor is installed on the cooling liquid outlet of the integrated plate heat exchanger, water temperature sensors are respectively installed on the cooling liquid outlets of the first battery cooler and the second battery cooler, and a water temperature sensor is installed on the cooling liquid outlet of the battery system.

4. The automotive thermal management system of claim 1, wherein: A water kettle is connected in the cooling liquid circuit to supplement the cooling liquid in the circuit.

5. The automotive thermal management system of claim 1, wherein: A control system is further included, and the full-indirect refrigerant circuit, the cooling liquid circuit, the motor electric control system, the battery system and the HVAC assembly are controlled by the control system.

6. An automobile characterized by comprising: The automobile thermal management system includes the automobile thermal management system according to any one of claims 1 to 4.

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