CN111301101A - New energy automobile's thermal management system and new energy automobile - Google Patents

New energy automobile's thermal management system and new energy automobile Download PDF

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Publication number
CN111301101A
CN111301101A CN202010151319.XA CN202010151319A CN111301101A CN 111301101 A CN111301101 A CN 111301101A CN 202010151319 A CN202010151319 A CN 202010151319A CN 111301101 A CN111301101 A CN 111301101A
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China
Prior art keywords
port
way valve
motor
battery
electric
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Granted
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CN202010151319.XA
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Chinese (zh)
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CN111301101B (en
Inventor
龙海峰
梁佳佳
席忠民
许俊海
何凯欣
刘继伟
刘州
黄盛华
湛绍新
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GAC Aion New Energy Automobile Co Ltd
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Guangzhou Automobile New Energy Automobile Co Ltd
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Priority to CN202010151319.XA priority Critical patent/CN111301101B/en
Publication of CN111301101A publication Critical patent/CN111301101A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The application relates to a thermal management system of a new energy automobile and the new energy automobile. The heat management system comprises a motor radiator, a first electronic water pump, an integrated power system, an electric control and first electric proportional three-way valve and a motor which are sequentially connected, and a third port of the first electric proportional three-way valve is further connected with a second port of the motor. Meanwhile, the motor is connected with a second port of the motor radiator through the first three-way valve and the second three-way valve in sequence; the air conditioning system is respectively connected with a third port of the first three-way valve and a first port of the second three-way valve; the battery system is connected with the air conditioning system. Based on above-mentioned structure, can be according to the temperature of motor, control first electronic proportion three-way valve, return the motor and waste heat and carry out the switch-on or disconnection. Based on this, can avoid influencing the work efficiency of motor when waste heat utilization. In addition, the air conditioning system and the battery system can also participate in heat management, corresponding waste heat recovery is adopted according to the heat demand condition, and the energy utilization rate of the whole vehicle is improved.

Description

New energy automobile's thermal management system and new energy automobile
Technical Field
The application relates to the technical field of new energy vehicles, in particular to a heat management system of a new energy vehicle and the new energy vehicle.
Background
With the popularization of new energy electric vehicles and the development of power battery technologies, the development speed of new energy electric vehicles is faster and faster, and the endurance mileage is also continuously increased. However, the driving range of the electric vehicle in winter is still not optimistic, which puts higher demands on the thermal management system of the whole vehicle. Obviously, the thermal management and energy saving system of the whole vehicle is more and more important. Meanwhile, the electric control, the motor and the battery waste heat of the whole vehicle are not optimally utilized, and the effective utilization of the part of heat energy can further improve the heat management system of the whole vehicle. At present, PTC heating is adopted more in the air conditioner heating in electric automobile passenger cabin, and PTC heating power is great, and the power consumption of whole car thermal management system in winter is more, has greatly reduced electric automobile's continuation of the journey mileage in winter. And a part of electric automobiles adopt a heat pump system for heating, but the heat pump system also has certain requirements on the environment, and when the ambient temperature is lower, the heat pump system has lower efficiency and can not meet the heating requirement of a passenger compartment.
At present, some heat management systems using waste heat utilization directly supply waste heat of electric control, a motor and a battery to a heat exchanger. In the implementation process, the inventor finds that at least the following problems exist in the conventional technology: the heat management system for waste heat utilization can affect the working efficiency of the motor.
Disclosure of Invention
Therefore, it is necessary to provide a thermal management system of a new energy vehicle and the new energy vehicle, aiming at the problem that the traditional thermal management system affects the working efficiency of the motor of the electric vehicle.
In order to achieve the above object, in one aspect, an embodiment of the present application provides a thermal management system for a new energy vehicle, including:
a motor radiator;
a first electronic water pump; the first port of the first electronic water pump is connected with the first port of the motor radiator;
an integrated power supply system; the first port of the integrated power supply system is connected with the second port of the first electronic water pump;
electrically controlling; the first port of the electric control is connected with the second port of the integrated power supply system;
a first electric proportional three-way valve; a first port of the first electric proportional three-way valve is connected with an electrically-controlled second port;
a motor; a first port of the motor is connected with a second port of the first electric proportional three-way valve, and a second port of the motor is connected with a third port of the first electric proportional three-way valve;
a first three-way valve; a first port of the first three-way valve is respectively connected with a second port of the motor and a third port of the first electric proportional three-way valve;
a second three-way valve; a first port of the second three-way valve is connected with a second port of the first three-way valve, a second port of the second three-way valve is connected with a first port of the first electronic water pump, and a third port of the second three-way valve is connected with a second port of the motor radiator;
an air conditioning system; the air conditioning system is respectively connected with a third port of the first three-way valve and a first port of the second three-way valve;
and the battery system is connected with the air conditioning system.
In one embodiment, an air conditioning system includes:
the heat exchanger comprises a first flow passage and a second flow passage; the first port of the first flow passage is connected with the third port of the first three-way valve, and the second port of the first flow passage is connected with the first port of the second three-way valve;
a first condenser; a first port of the first condenser is connected with a first port of the second flow channel, and a second port of the first condenser is connected with the battery system;
a third three-way valve; a first port of the third three-way valve is connected with a second port of the first condenser, and a second port of the third three-way valve is connected with the battery system;
a gas-liquid separator; the first port of the gas-liquid separator is connected with the third port of the third three-way valve;
an electric compressor; the first port of the electric compressor is connected with the second port of the gas-liquid separator;
a second condenser including a third flow passage; the first port of the third flow passage is connected with the second port of the electric compressor;
a first electronic expansion valve; the first port of the first electronic expansion valve is connected with the second port of the third flow passage, and the second port of the first electronic expansion valve is connected with the second port of the second flow passage.
In one embodiment, the second port of the motor-driven compressor is connected to the first port of the first condenser.
The air conditioning system further includes:
a second electronic expansion valve; the first port of the second electronic expansion valve is connected with the second port of the first condenser;
an evaporator; and the first port of the evaporator is connected with the second port of the second electronic expansion valve, and the second port of the evaporator is connected with the third port of the third three-way valve.
In one embodiment, a battery system includes:
a third electronic expansion valve; the first port of the third electronic expansion valve is connected with the second port of the first condenser;
a battery cooler including a fifth flow passage and a sixth flow passage; a first port of the fifth flow passage is connected with a second port of the third electronic expansion valve, and a second port of the fifth flow passage is connected with a second port of the third three-way valve;
a second electronic water pump; a first port of the second electronic water pump is connected with a first port of the sixth flow channel;
a power battery; and the first port of the power battery is connected with the second port of the second electronic water pump, and the second port of the power battery is used for connecting the second port of the sixth flow channel.
In one embodiment, the battery system further includes:
the first temperature sensor is connected with the second port of the fifth flow channel;
and the second temperature sensor is connected with a second port of the power battery.
In one embodiment, the battery system further includes:
the second electric proportional three-way valve is connected between the second port of the power battery and the second port of the sixth flow channel; a first port of the second electric proportional three-way valve is used for connecting a second port of the power battery, and a second port of the second electric proportional three-way valve is connected with a second port of the sixth flow channel;
a heater; and the first port of the heater is connected with the third port of the second electric proportional three-way valve, and the second port of the heater is used for being connected with the first port of the second electronic water pump.
In one embodiment, the battery system further comprises a fourth three-way valve connected between the second port of the power cell and the first port of the second electric proportional three-way valve.
A first port of the fourth three-way valve is connected with a second port of the power battery, a second port of the fourth three-way valve is connected with a first port of the second electric proportional three-way valve, and a third port of the fourth three-way valve is connected with a first port of the first flow passage;
the second port of the first flow passage is also connected with the first port of the second electric proportional three-way valve.
In one embodiment, the second condenser further comprises a fourth flow channel.
The battery system further includes:
the third electric proportional three-way valve is connected between the second port of the heater and the first port of the second electronic water pump; a first port of the third electric proportional three-way valve is connected with a second port of the heater, and a second port of the third electric proportional three-way valve is connected with a first port of the second electronic water pump;
a third electronic water pump; a first port of the third electronic water pump is connected with a third port of the third electric proportional three-way valve, and a second port of the third electronic water pump is connected with a first port of the fourth flow channel;
a warm air core body; the first port of the warm air core is connected with the second port of the fourth flow passage, and the second port of the warm air core is connected with the first port of the heater.
In one embodiment, the battery system further includes:
and the third temperature sensor is connected with the first port of the warm air core body.
In one embodiment, the thermal management system of the new energy automobile further comprises a fourth temperature sensor connected to the second port of the motor.
In one embodiment, the thermal management system of the new energy automobile further comprises an electronic fan arranged on the motor radiator.
On the other hand, the embodiment of the application also provides a new energy automobile, which comprises the thermal management system of the new energy automobile.
One of the above technical solutions has the following advantages and beneficial effects:
the heat management system comprises a motor radiator, a first electronic water pump, an integrated power system, an electronic control unit, a first electric proportional three-way valve and a motor which are sequentially connected, and a third port of the first electric proportional three-way valve is also connected with a second port of the motor. Meanwhile, the motor is connected with a second port of the motor radiator through the first three-way valve and the second three-way valve in sequence; the air conditioning system is respectively connected with a third port of the first three-way valve and a first port of the second three-way valve; the battery system is connected with the air conditioning system. Based on the structure, the first electric proportional three-way valve can control the electric-drive waste heat recovery loop not to pass through the motor when the temperature of the motor is low, so that the temperature of the motor is in a rapid rising state and reaches a proper working temperature; meanwhile, when the temperature of the motor is within the working temperature or higher than the working temperature, the first electric proportional three-way valve enables the motor to be connected in series into a circuit for recycling the electric driving waste heat, and partial or all waste heat of the motor is recycled. Based on this, can avoid influencing the work efficiency of motor when waste heat utilization. In addition, the air conditioning system and the battery system can also participate in heat management, corresponding waste heat recovery is adopted according to the heat demand condition, and the energy utilization rate of the whole vehicle is improved.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular description of preferred embodiments of the application, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the subject matter of the present application.
FIG. 1 is a first schematic block diagram of a thermal management system in one embodiment;
FIG. 2 is a second schematic block diagram of a thermal management system in one embodiment;
FIG. 3 is a third schematic block diagram of a thermal management system in one embodiment;
FIG. 4 is a schematic view of the air conditioning cooling mode of the thermal management system in one embodiment;
FIG. 5 is a schematic view of an air conditioning and heating mode of the thermal management system in one embodiment;
FIG. 6 is a schematic diagram of an electronically controlled waste heat recovery mode of the thermal management system in one embodiment;
FIG. 7 is a schematic diagram of an electric motor control waste heat recovery mode of the thermal management system in one embodiment;
FIG. 8 is a schematic diagram of a battery and passenger compartment synchronized cooling mode of the thermal management system in one embodiment;
FIG. 9 is a schematic diagram of a battery rapid cooling mode of the thermal management system in one embodiment;
FIG. 10 is a schematic diagram of a battery heating mode of the thermal management system in one embodiment;
FIG. 11 is a schematic diagram of a battery waste heat recovery mode of the thermal management system in one embodiment;
FIG. 12 is a schematic view of a passenger compartment heater heating mode of the thermal management system in one embodiment;
FIG. 13 is a schematic illustration of the electric drive, electric control, and cooling modes of the integrated power system of the thermal management system in one embodiment;
FIG. 14 is a schematic diagram of a heater synchronous heating mode of the thermal management system in one embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "first port", "second port", "third port", and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The electric automobile has low mileage in winter, and particularly consumes a large amount of electric energy for supplying heat to the passenger compartment in winter in the north of China. A large amount of unused waste heat exists in electric control systems, motors, batteries and other systems of the electric automobile, and if the waste heat is utilized, the electric energy consumption for heat supply can be greatly reduced, and the winter endurance mileage of the electric automobile is increased. However, the working efficiency of the motor of the electric automobile at different temperatures is greatly different, heat generated by the motor cannot be absorbed blindly, otherwise, the working efficiency of the motor can be influenced, and the effect of improving the energy utilization rate of the whole automobile cannot be achieved. In view of the above problems, the waste heat utilization needs to be performed under the condition that each system meets the requirement of the working temperature of the system, so that the overall energy utilization efficiency of the whole vehicle is further improved. Therefore, the embodiment of the application provides a thermal management system with an Integrated Power System (IPS), an electronic controller, a motor and a battery.
In one embodiment, a thermal management system of a new energy automobile is provided, as shown in fig. 1, including:
a motor radiator;
a first electronic water pump; the first port of the first electronic water pump is connected with the first port of the motor radiator;
an integrated power supply system; the first port of the integrated power supply system is connected with the second port of the first electronic water pump;
electrically controlling; the first port of the electric control is connected with the second port of the integrated power supply system;
a first electric proportional three-way valve; a first port of the first electric proportional three-way valve is connected with an electrically-controlled second port;
a motor; a first port of the motor is connected with a second port of the first electric proportional three-way valve, and a second port of the motor is connected with a third port of the first electric proportional three-way valve;
a first three-way valve; a first port of the first three-way valve is respectively connected with a second port of the motor and a third port of the first electric proportional three-way valve;
a second three-way valve; a first port of the second three-way valve is connected with a second port of the first three-way valve, a second port of the second three-way valve is connected with a first port of the first electronic water pump, and a third port of the second three-way valve is connected with a second port of the motor radiator;
an air conditioning system; the air conditioning system is respectively connected with a third port of the first three-way valve and a first port of the second three-way valve;
and the battery system is connected with the air conditioning system.
Specifically, the heat management system comprises a motor radiator, a first electronic water pump, an integrated power system, an electronic control unit, a first electric proportional three-way valve and a motor which are sequentially connected, and a third port of the first electric proportional three-way valve is further connected with a second port of the motor. Meanwhile, the motor is connected with a second port of the motor radiator through the first three-way valve and the second three-way valve in sequence; the air conditioning system is respectively connected with a third port of the first three-way valve and a first port of the second three-way valve; the battery system is connected with the air conditioning system. Based on the structure, the first electric proportional three-way valve can control the electric-drive waste heat recovery loop not to pass through the motor when the temperature of the motor is low, so that the temperature of the motor is in a rapid rising state and reaches a proper working temperature; meanwhile, the first electric proportional three-way valve can enable the motor to be connected in series in a circuit for recycling the electric driving waste heat when the temperature of the motor is within the working temperature or higher than the working temperature, and can recycle part or all of the waste heat of the motor. Based on this, can avoid influencing the work efficiency of motor when waste heat utilization.
The integrated power system, the electric control and electric proportional three-way valve (namely, the first electric proportional three-way valve), the motor radiator and the water pump are sequentially connected, and an electric drive loop cooling system can be formed. Meanwhile, the electrically-driven loop cooling system can be matched with an air conditioning system to form an electrically-driven waste heat recovery loop, and can recover waste heat of an electric control motor. The electric proportional three-way valve can accurately control the temperature of the motor. Specifically, in a low-temperature environment, the high-efficiency operation of the motor needs to be kept at a proper temperature, meanwhile, the electric control is more sensitive to the temperature, and if the cooling liquid directly flows through the motor from the electric control, the temperature of the motor can be maintained at a lower temperature, and the operation efficiency of the motor is seriously influenced. The electric proportional three-way valve can control the temperature of the motor by controlling whether the motor is connected into an electrically-driven waste heat recovery loop or not. Wherein, air conditioning system can mainly realize the waste heat recovery of electricity driving the return circuit through the heat exchanger, and concrete structure can set up according to actual demand. In one example, an air conditioning system includes a heat exchanger; the heat exchanger comprises a first flow channel; the first port of the first flow passage is connected with the third port of the first three-way valve, and the second port of the first flow passage is connected with the first port of the second three-way valve; based on the cooling mode, the cooling system of the electrically-driven loop can realize the cooling mode of an electrically-driven, electrically-controlled and integrated power supply system; and moreover, the cooling liquid in the electric driving loop cooling system can be matched with the heat exchanger, so that the heat exchange efficiency of the system is improved. It should be noted that the air conditioning system can be used for realizing a cooling mode and a heating mode of the passenger compartment, and can also be used for being matched with the battery system to realize a battery quick cooling mode, a battery heating mode, a battery waste heat recovery mode and the like, and the structure of the air conditioning system can be set according to actual requirements, and is not particularly limited; namely, the embodiment of the application can adopt corresponding waste heat recovery according to the thermal demand condition, and the energy utilization rate of the whole vehicle is improved. Based on the above structure, the cooling liquid can have various loops in the system.
In one example, the first electric proportional three-way valve connects the motor into the loop, and based on the cooperation of the first three-way valve and the second three-way valve, the cooling liquid can sequentially pass through the motor radiator, the first electronic water pump, the integrated power system, the electric control and the motor and return to the motor radiator, so that the cooling of the motor, the electric control and the integrated power system is realized. In another example, the first electro-proportional three-way valve disconnects the motor from the cooling circuit, and based on the cooperation of the first three-way valve and the second three-way valve, the cooling liquid may sequentially pass through the motor radiator, the first electronic water pump, the integrated power system, and the electronic control, and return to the motor radiator, thereby achieving cooling of the electronic control and the integrated power system.
Furthermore, a second port of the motor is connected with a first port of the first electronic water pump sequentially through a first three-way valve and a second three-way valve. Based on this, in one example, the first electric proportional three-way valve cuts off the motor outside the waste heat recovery loop, and based on the cooperation of the first three-way valve and the second three-way valve, the cooling liquid can sequentially pass through the air conditioning system, the first electronic water pump, the integrated power supply system and the electronic control unit, and returns to the air conditioning system, so as to realize the electronic control waste heat recovery. In another example, the motor is connected into the waste heat recovery loop through the first electric proportional three-way valve, and based on the cooperation of the first three-way valve and the second three-way valve, the cooling liquid can sequentially pass through the air conditioning system, the first electronic water pump, the integrated power system, the electric control unit and the motor and return to the air conditioning system, so that the electric control unit and the motor can recover waste heat.
In one example, based on the above structure, the electric-driven heat recovery circuit can determine whether the heat of the motor needs to be recovered according to the working condition of the motor. For example, when the vehicle is just started, the temperature of the motor is low, the electric proportional three-way valve cuts off a loop between the motor and the electric control, and the loop for recovering the electric driving waste heat does not pass through the motor, so that the temperature of the motor is in a rapid rising state, and the motor reaches the proper working temperature. For another example, when the temperature of the motor rises to 60-80 ℃, the electric proportional three-way valve opens a loop between the motor and the electric control, and the waste heat part of the motor can be recycled. When the temperature of the motor is higher than 80 ℃, the motor can be connected in series into a circuit for recovering the electric driving waste heat, and the waste heat of the motor is completely recovered and utilized.
It should be noted that the motor radiator can be used for heat dissipation of electric drives. The electronic water pump that this application embodiment mentioned can be used to through the transmission of electronic integrated system control liquid, realizes adjustability, the precision of liquid transmission. The electric proportional three-way valve provided by the embodiment of the application can mainly comprise an electronic electric actuating mechanism and a three-way valve adjusting mechanism, and the electric actuating mechanism can control the three-way valve adjusting mechanism according to signals; it should be noted that the three-way valves mentioned in the embodiments of the present application may be controlled and adjusted by processing equipment such as an automobile electronic control or thermal management equipment, and may also be adjusted by external manual work; the electric proportional three-way valve can be used for controlling on-off and also can be used for accurately regulating and controlling the flow and the flow speed of the two water outlets respectively. The air conditioning system may be mainly composed of an electric compressor, a heat exchanger, and the like, and is not particularly limited herein. The battery system may be mainly composed of a power battery and a thermal management device, such as a heat exchanger, a heater, etc., and is not particularly limited herein. The ports mentioned in the embodiments of the present application may be used for communication of flow channels to form a fluid circuit between devices.
The integrated power supply system is synthesized to this application embodiment, automatically controlled, motor, air conditioning system and battery system carry out the heat management, can improve whole car energy utilization, and simultaneously, first electronic proportion three-way valve can be according to the temperature of motor, and whether control motor intervenes in the waste heat recovery return circuit, avoids waste heat recovery to cause the influence to motor efficiency.
In one embodiment, as shown in fig. 2, an air conditioning system includes:
the heat exchanger comprises a first flow passage and a second flow passage; the first port of the first flow passage is connected with the third port of the first three-way valve, and the second port of the first flow passage is connected with the first port of the second three-way valve;
a first condenser; a first port of the first condenser is connected with a first port of the second flow channel, and a second port of the first condenser is connected with the battery system;
a third three-way valve; a first port of the third three-way valve is connected with a second port of the first condenser, and a second port of the third three-way valve is connected with the battery system;
a gas-liquid separator; the first port of the gas-liquid separator is connected with the third port of the third three-way valve;
an electric compressor; the first port of the electric compressor is connected with the second port of the gas-liquid separator;
a second condenser including a third flow passage; the first port of the third flow passage is connected with the second port of the electric compressor;
a first electronic expansion valve; the first port of the first electronic expansion valve is connected with the second port of the third flow passage, and the second port of the first electronic expansion valve is connected with the second port of the second flow passage.
Specifically, air conditioning system can cooperate and form heat pump system including the heat exchanger, first condenser, vapour and liquid separator, motor compressor and the second condenser that connect gradually. The first flow passage of the heat exchanger is connected between the first port of the first condenser and the second port of the third flow passage of the second condenser. Based on the structure, the air conditioning system can realize a heating mode and can also be matched with an electric control waste heat recovery mode, an electric control motor waste heat recovery mode and the like. Specifically, the refrigerant may sequentially pass through the first condenser, the gas-liquid separator, the electric compressor, the third flow channel, and the second flow channel, and return to the first condenser; wherein, the heat exchanger can exchange electricity and drive the return circuit waste heat, improves heat pump efficiency. The embodiment of the application can also integrate the air conditioner heating mode, enrich the functionality of the system and improve the heat utilization efficiency.
It should be noted that, the first condenser may be an outdoor condenser; the second condenser may be a water-cooled condenser; the heat exchanger and the second condenser may each comprise two flow channels for heat transfer. The electronic expansion valve in the embodiment of the application can be used for controlling the voltage or current applied to the expansion valve by utilizing the electric signal generated by the regulated parameter so as to achieve the aim of regulating the liquid supply amount; specifically, the first electronic expansion valve may be an electronic expansion valve for heating. The type of the fluid in the flow channel can be set according to actual requirements, and is not particularly limited herein.
In one embodiment, the second port of the motor-driven compressor is connected to the first port of the first condenser.
The air conditioning system further includes:
a second electronic expansion valve; the first port of the second electronic expansion valve is connected with the second port of the first condenser;
an evaporator; and the first port of the evaporator is connected with the second port of the second electronic expansion valve, and the second port of the evaporator is connected with the third port of the third three-way valve.
Specifically, the air conditioning system may further include a second electronic expansion valve and an evaporator connected between the second port of the first condenser and the second port of the third three-way valve; meanwhile, the second port of the electric compressor can be connected with the first port of the first condenser, and an air-conditioning refrigeration system is formed in a matched mode. Based on the structure, the refrigerant can sequentially pass through the electric compressor, the first condenser, the evaporator and the gas-liquid separator and return to the electric compressor, so that the air-conditioning refrigeration mode is realized. In other words, the embodiment of the application can integrate the air conditioner refrigeration mode, enrich the functionality of the system and improve the heat utilization efficiency. The second electronic expansion valve may be an electronic expansion valve for cooling.
In one embodiment, a battery system includes:
a third electronic expansion valve; the first port of the third electronic expansion valve is connected with the second port of the first condenser;
a battery cooler including a fifth flow passage and a sixth flow passage; a first port of the fifth flow passage is connected with a second port of the third electronic expansion valve, and a second port of the fifth flow passage is connected with a second port of the third three-way valve;
a second electronic water pump; a first port of the second electronic water pump is connected with a first port of the sixth flow channel;
a power battery; and the first port of the power battery is connected with the second port of the second electronic water pump, and the second port of the power battery is used for connecting the second port of the sixth flow channel.
Specifically, the battery system comprises a battery cooler, a second electronic water pump and a power battery which are sequentially connected; meanwhile, a fifth flow channel of the battery cooler can be connected between the first condenser and the third three-way valve, and then can be matched with an air conditioning system to realize rapid refrigeration of the power battery. Specifically, the cooling liquid may sequentially pass through the sixth flow passage, the second electronic water pump, and the power battery, and return to the sixth flow passage. Namely, the battery cooling mode can be integrated, so that the thermal management of the battery is facilitated, and the system functionality is enriched. It should be noted that battery cooling and passenger compartment cooling may be turned on simultaneously. It should be noted that the power battery may be integrated with a battery cooler, and is connected to the battery cooling circuit through the battery cooler, which is not limited herein.
In one embodiment, the battery system further comprises:
and the first temperature sensor is connected with the second port of the fifth flow passage.
Specifically, the first temperature sensor may be a PT temperature sensor.
In one embodiment, the battery system further comprises:
and the second temperature sensor is connected with a second port of the power battery.
Particularly, the second port of the fifth flow channel and the second port of the power battery are respectively provided with the temperature sensor, so that the temperature can be adjusted more accurately, and efficient mode switching is realized. The second temperature sensor may be a water temperature sensor.
In one embodiment, the battery system further comprises:
the second electric proportional three-way valve is connected between the second port of the power battery and the second port of the sixth flow channel; a first port of the second electric proportional three-way valve is used for connecting a second port of the power battery, and a second port of the second electric proportional three-way valve is connected with a second port of the sixth flow channel;
a heater; and the first port of the heater is connected with the third port of the second electric proportional three-way valve, and the second port of the heater is used for being connected with the first port of the second electronic water pump.
Specifically, the battery system further includes a heater; and a first port of the heater is respectively connected with a second port of the power battery and a second port of the sixth flow channel through a second electric proportional three-way valve, and the second port of the heater can be connected with a first port of the second electronic water pump. Based on this, can cooperate and form battery heating system, realize battery heating mode, richen the functionality of system. Specifically, the heater may be a PTC (thermistor) heater.
In one embodiment, the battery system further includes a fourth three-way valve connected between the second port of the power cell and the first port of the second electrically proportional three-way valve.
A first port of the fourth three-way valve is connected with a second port of the power battery, a second port of the fourth three-way valve is connected with a first port of the second electric proportional three-way valve, and a third port of the fourth three-way valve is connected with a first port of the first flow passage;
the second port of the first flow passage is also connected with the first port of the second electric proportional three-way valve.
Specifically, the second port of the power battery can be respectively connected with the first port of the first flow passage and the first port of the second electric proportional three-way valve through a fourth three-way valve; based on the structure, the battery system can be matched with an air conditioning system to realize the recovery of the waste heat of the battery, and the heat utilization efficiency of the system is improved. Specifically, the fluid can sequentially pass through the heater, the second electronic water pump, the power battery, the first flow channel and the second electric proportional three-way valve and return to the heater, and waste heat recovery is realized in the heat exchanger.
In one embodiment, the second condenser further comprises a fourth flow channel.
The battery system further includes:
the third electric proportional three-way valve is connected between the second port of the heater and the first port of the second electronic water pump; a first port of the third electric proportional three-way valve is connected with a second port of the heater, and a second port of the third electric proportional three-way valve is connected with a first port of the second electronic water pump;
a third electronic water pump; a first port of the third electronic water pump is connected with a third port of the third electric proportional three-way valve, and a second port of the third electronic water pump is connected with a first port of the fourth flow channel;
a warm air core body; the first port of the warm air core is connected with the second port of the fourth flow passage, and the second port of the warm air core is connected with the first port of the heater.
Specifically, the battery system may further include a warm air core; the warm air core is connected between the heater and the second condenser, and based on the warm air core, the embodiment of the application can integrate a heater heating mode and a battery and passenger cabin synchronous heat supply mode, so that the heat efficiency is improved while the system functionality is improved. In one example, fluid may pass through the heater, the third electronic water pump, the fourth flow passage, and the warm air core in sequence, and return to the heater, based on control of the third electric proportional three-way valve, to implement the heater heating mode. In another example, based on the cooperation of the second electric proportional three-way valve, the third electric proportional three-way valve and the fourth three-way valve, the fluid output by the heater can respectively pass through the power battery and the warm air core body and all return to the heater, and the synchronous heating of the battery and the passenger compartment is realized. That is, in the embodiment of the present application, the passenger compartment heating and battery heating system can be integrated into one heater, which is more highly integrated and reduces the cost.
In one embodiment, the battery system further comprises:
and the third temperature sensor is connected with the first port of the warm air core body.
Particularly, the battery system can also be provided with a temperature sensor between the first port of the warm air core body and the fourth flow channel, so that the accuracy of temperature regulation and control is improved. Specifically, the third temperature sensor may be a water temperature sensor.
In one embodiment, the thermal management system of the new energy automobile further comprises a fourth temperature sensor connected to the second port of the electric motor.
Particularly, a temperature sensor can be arranged at the second port of the motor, so that the accuracy of motor temperature detection is improved. Specifically, the fourth temperature sensor may be a water temperature sensor.
It should be noted that, according to actual requirements, the temperature sensor may be disposed at a corresponding port or flow channel to meet the requirement of detecting the temperature, and this is not specifically limited herein.
In one embodiment, the thermal management system of the new energy automobile comprises an electronic fan arranged on a motor radiator.
Particularly, the motor radiator can also be provided with an electronic fan, so that the electric driving heat dissipation efficiency is further improved. In addition, the waste heat recovery mode of the embodiment of the application does not need to be provided with an outdoor radiator, and the heat loss is reduced.
In one embodiment, as shown in FIG. 3, a thermal management system comprises: the system comprises a heat exchanger 1, a first electronic expansion valve 2 (heating), a second condenser 3, a third electronic water pump 4, a third temperature sensor 5, a warm air core 6, a second temperature sensor 7, a power battery 8, a second electronic water pump 9, a third electric proportional three-way valve 10, a PTC heater 11, a second electric proportional three-way valve 12, a third electronic expansion valve 13 (refrigerating), a battery cooler 14, a first temperature sensor 15, a second electronic expansion valve 16 (refrigerating), an evaporator 17, a gas-liquid separator 18, an electric compressor 19, a first electronic water pump 20, an integrated power supply system 21, an electronic control system 22, a first electric proportional three-way valve 23, a motor 24, a fourth temperature sensor 25, an electronic fan 26, a motor radiator 27 and a first condenser 28.
Based on the structure, the heat management system capable of performing waste heat management can form an air-conditioning refrigeration system, an air-conditioning heating system, an electric-driven cooling system, a battery heating system, a waste heat recovery system and the like. Wherein the waste heat recovery system can comprise waste heat recovery of an electric drive loop and waste heat recovery of a battery loop; in particular, in an electrically driven waste heat recovery circuit, it can be switched on or off from the circuit depending on the operating conditions of the electric machine. Specifically, in an electric driving loop, heat can be exchanged with cooling liquid through an oil cooler, and then the heat exchange efficiency of a heat pump system is improved through a heat exchanger; the battery loop can exchange heat with the heat exchanger through the cooling liquid with higher temperature, so that the efficiency of the heat pump is improved. According to the embodiment of the application, waste heat recovery can be adopted according to the actual working conditions of each independent system and the heat demand condition of each system, so that the highest energy utilization rate of the whole vehicle is achieved.
The air conditioning and heating system mainly comprises an electric compressor, a second condenser, a first electronic expansion valve, a heat exchanger, a first condenser, a third three-way valve, a gas-liquid separator and the like. The air-conditioning refrigeration system can mainly comprise an electric compressor, a first condenser, a second electronic expansion valve, an evaporator, a gas-liquid separator and the like. The electric drive cooling system can mainly comprise an integrated power supply system, an electric control system, a first electric proportional three-way valve, a motor, a fourth temperature sensor, a motor radiator, a first electronic water pump and the like. The battery cooling system can mainly comprise a power battery, a second temperature sensor, a second electric proportional three-way valve, a battery cooler, a second electronic water pump and the like. The battery heating system can mainly comprise a power battery, a second temperature sensor, a second electric proportional three-way valve, a second electronic water pump, a third electric proportional three-way valve, a PTC heater, a second temperature sensor and the like.
For example, the direction of fluid flow in the passenger compartment cooling mode may be as indicated by the heavy solid arrows in fig. 4. The direction of fluid flow in the passenger compartment air conditioning and heating mode may be as indicated by the heavy solid arrows in fig. 5. The flow direction of the cooling liquid in the electrically controlled waste heat recovery mode can be shown by a thick dashed arrow in fig. 6, and the flow direction of the refrigerant can be shown by a thick solid arrow in fig. 6. The flow direction of the cooling liquid in the motor-controlled waste heat recovery mode can be shown by a thick dashed arrow in fig. 7, and the flow direction of the refrigerant can be shown by a thick solid arrow in fig. 7. The flow of the coolant in the battery rapid cooling and passenger compartment cooling modes may be as indicated by the bold dashed arrows in fig. 8, and the flow of the refrigerant may be as indicated by the bold solid arrows in fig. 8. The flow direction of the cooling liquid in the battery rapid cooling mode may be as indicated by thick dashed arrows in fig. 9, and the flow direction of the refrigerant may be as indicated by thick solid arrows in fig. 9. The direction of fluid flow in the battery heating mode may be as indicated by the thick dashed arrow in fig. 10. The flow direction of the coolant in the battery residual heat recovery mode (battery slow cooling mode) may be as indicated by thick dashed arrows in fig. 11, and the flow direction of the refrigerant may be as indicated by thick solid arrows in fig. 11. The direction of fluid flow in the PTC heater heating mode may be as indicated by the thick dashed arrows in fig. 12. The direction of fluid flow in the electric-drive, electric-control, integrated power system cooling mode may be as indicated by the heavy dashed arrows in fig. 13. In the PTC heater heating both the battery and the passenger compartment mode, the fluid flow direction may be as indicated by the heavy dashed arrow in FIG. 14.
In one embodiment, a new energy automobile is provided, and the new energy automobile comprises the thermal management system of the new energy automobile.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (12)

1. A thermal management system of a new energy automobile is characterized by comprising:
a motor radiator;
a first electronic water pump; the first port of the first electronic water pump is connected with the first port of the motor radiator;
an integrated power supply system; the first port of the integrated power supply system is connected with the second port of the first electronic water pump;
electrically controlling; the first port of the electronic control is connected with the second port of the integrated power supply system;
a first electric proportional three-way valve; the first port of the first electric proportional three-way valve is connected with the second port of the electric control;
a motor; a first port of the motor is connected with a second port of the first electric proportional three-way valve, and a second port of the motor is connected with a third port of the first electric proportional three-way valve;
a first three-way valve; a first port of the first three-way valve is respectively connected with a second port of the motor and a third port of the first electric proportional three-way valve;
a second three-way valve; a first port of the second three-way valve is connected with a second port of the first three-way valve, a second port of the second three-way valve is connected with a first port of the first electronic water pump, and a third port of the second three-way valve is connected with a second port of the motor radiator;
an air conditioning system; the air conditioning system is respectively connected with a third port of the first three-way valve and a first port of the second three-way valve;
and the battery system is connected with the air conditioning system.
2. The thermal management system of the new energy automobile, according to claim 1, wherein the air conditioning system includes:
the heat exchanger comprises a first flow passage and a second flow passage; the first port of the first flow passage is connected with the third port of the first three-way valve, and the second port of the first flow passage is connected with the first port of the second three-way valve;
a first condenser; a first port of the first condenser is connected with a first port of the second flow channel, and a second port of the first condenser is connected with the battery system;
a third three-way valve; a first port of the third three-way valve is connected with a second port of the first condenser, and a second port of the third three-way valve is connected with the battery system;
a gas-liquid separator; the first port of the gas-liquid separator is connected with the third port of the third three-way valve;
an electric compressor; the first port of the electric compressor is connected with the second port of the gas-liquid separator;
a second condenser including a third flow passage; the first port of the third flow passage is connected with the second port of the electric compressor;
a first electronic expansion valve; and the first port of the first electronic expansion valve is connected with the second port of the third flow passage, and the second port of the first electronic expansion valve is connected with the second port of the second flow passage.
3. The thermal management system of the new energy automobile, according to claim 2, is characterized in that the second port of the electric compressor is connected to the first port of the first condenser;
the air conditioning system further includes:
a second electronic expansion valve; a first port of the second electronic expansion valve is connected with a second port of the first condenser;
an evaporator; and the first port of the evaporator is connected with the second port of the second electronic expansion valve, and the second port of the evaporator is connected with the third port of the third three-way valve.
4. The thermal management system of the new energy automobile according to claim 2, wherein the battery system comprises:
a third electronic expansion valve; a first port of the third electronic expansion valve is connected with a second port of the first condenser;
a battery cooler including a fifth flow passage and a sixth flow passage; a first port of the fifth flow passage is connected with a second port of the third electronic expansion valve, and a second port of the fifth flow passage is connected with a second port of the third three-way valve;
a second electronic water pump; a first port of the second electronic water pump is connected with a first port of the sixth flow channel;
a power battery; and the first port of the power battery is connected with the second port of the second electronic water pump, and the second port of the power battery is used for being connected with the second port of the sixth flow channel.
5. The thermal management system of the new energy automobile, according to claim 4, wherein the battery system further includes:
the first temperature sensor is connected with the second port of the fifth flow channel;
and the second temperature sensor is connected with the second port of the power battery.
6. The thermal management system of the new energy automobile, according to claim 4, wherein the battery system further includes:
the second electric proportional three-way valve is connected between the second port of the power battery and the second port of the sixth flow passage; the first port of the second electric proportional three-way valve is used for connecting the second port of the power battery, and the second port of the second electric proportional three-way valve is connected with the second port of the sixth flow passage;
a heater; and the first port of the heater is connected with the third port of the second electric proportional three-way valve, and the second port of the heater is used for being connected with the first port of the second electronic water pump.
7. The thermal management system of the new energy automobile according to claim 6, wherein the battery system further comprises a fourth three-way valve connected between the second port of the power battery and the first port of the second electric proportional three-way valve;
a first port of the fourth three-way valve is connected with a second port of the power battery, a second port of the fourth three-way valve is connected with a first port of the second electric proportional three-way valve, and a third port of the fourth three-way valve is connected with a first port of the first flow passage;
the second port of the first flow passage is also connected with the first port of the second electric proportional three-way valve.
8. The thermal management system of the new energy automobile, according to claim 6, wherein the second condenser further comprises a fourth flow channel;
the battery system further includes:
a third electric proportional three-way valve connected between the second port of the heater and the first port of the second electric water pump; a first port of the third electric proportional three-way valve is connected with a second port of the heater, and a second port of the third electric proportional three-way valve is connected with a first port of the second electronic water pump;
a third electronic water pump; a first port of the third electronic water pump is connected with a third port of the third electric proportional three-way valve, and a second port of the third electronic water pump is connected with a first port of the fourth flow channel;
a warm air core body; the first port of the warm air core is connected with the second port of the fourth flow passage, and the second port of the warm air core is connected with the first port of the heater.
9. The thermal management system of the new energy vehicle according to claim 8, wherein the battery system further comprises:
and the third temperature sensor is connected with the first port of the warm air core body.
10. The thermal management system of the new energy vehicle according to any one of claims 1 to 9, further comprising a fourth temperature sensor connected to the second port of the motor.
11. The thermal management system of the new energy automobile according to any one of claims 1 to 9, further comprising an electronic fan disposed on the motor radiator.
12. A new energy automobile, characterized by comprising the thermal management system of the new energy automobile according to any one of claims 1 to 11.
CN202010151319.XA 2020-03-06 2020-03-06 New energy automobile's thermal management system and new energy automobile Active CN111301101B (en)

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