CN111572410A - Integrated electric automobile heat management system - Google Patents

Integrated electric automobile heat management system Download PDF

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Publication number
CN111572410A
CN111572410A CN202010553445.8A CN202010553445A CN111572410A CN 111572410 A CN111572410 A CN 111572410A CN 202010553445 A CN202010553445 A CN 202010553445A CN 111572410 A CN111572410 A CN 111572410A
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CN
China
Prior art keywords
way valve
valve
integrated
water pump
heat exchanger
Prior art date
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Pending
Application number
CN202010553445.8A
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Chinese (zh)
Inventor
陈金贵
郑宝特
姚钟红
温金福
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Thermo Xiamen Intelligent Technology Co ltd
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Thermo Xiamen Intelligent Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thermo Xiamen Intelligent Technology Co ltd filed Critical Thermo Xiamen Intelligent Technology Co ltd
Priority to CN202010553445.8A priority Critical patent/CN111572410A/en
Publication of CN111572410A publication Critical patent/CN111572410A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • 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
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention relates to an integrated electric automobile heat management system, which can comprise a controller, a refrigerant circulating unit, a PTC heater, a water pump and valve cooling liquid circulating unit, a radiator and a heat exchanger, wherein the controller is connected with the refrigerant circulating unit; the refrigerant circulating unit is in fluid communication with a refrigerant passage of the heat exchanger, the water pump & valve coolant circulating unit is in fluid communication with a coolant passage of the heat exchanger, the PTC heater and the radiator, and the controller is used for controlling the refrigerant circulating unit, the PTC heater and the water pump & valve coolant circulating unit to operate so as to achieve thermal management of the automobile. The invention solves the problems of huge system, lower integration level and reliability, larger overall space, difficult assembly and the like in the prior art, reduces the final assembly time and labor cost, can ensure that the battery is charged and discharged in an optimal temperature range all the time, improves the charging and discharging efficiency and endurance of the battery and prolongs the service life of the battery.

Description

Integrated electric automobile heat management system
Technical Field
The invention relates to the field of electric automobiles, in particular to an integrated electric automobile thermal management system.
Background
All parts used in the electric automobile heat management system at present function singleness, the structure dispersion, all parts mainly lean on the pipe connection, and electric automobile's battery just can exert best performance under suitable temperature environment simultaneously, and the battery is most to be disposed battery heat management system and carry out temperature control to cause the system huge, integration level and reliability lower, whole space is great, the equipment difficulty and the cost is higher.
Disclosure of Invention
The invention aims to provide an integrated electric automobile thermal management system to solve the problems. Therefore, the invention adopts the following specific technical scheme:
an integrated electric vehicle thermal management system may include a controller, a refrigerant circulation unit, a PTC heater, a water pump & valve coolant circulation unit, a radiator, and a heat exchanger; the refrigerant circulating unit is in fluid communication with a refrigerant passage of the heat exchanger, the water pump & valve coolant circulating unit is in fluid communication with a coolant passage of the heat exchanger, the PTC heater and the radiator, and the controller is used for controlling the refrigerant circulating unit, the PTC heater and the water pump & valve coolant circulating unit to operate so as to achieve thermal management of the electric automobile.
Further, the water pump and valve coolant circulation unit comprises an integrated kettle water pump, a three-way valve, a first two-way valve, a second two-way valve and a third two-way valve, the integrated kettle water pump is provided with a first liquid outlet, a second liquid outlet and a first liquid inlet which is respectively connected with the first two-way valve, the second two-way valve and the third two-way valve, the first liquid outlet is communicated with a first interface of a three-way valve through a first cooling liquid branch, the first cooling liquid branch is used for cooling the battery pack management block, the motor, the speed reducer, the inverter and the electric control system, a second interface of the three-way valve is communicated with a first two-way valve, a third interface of the three-way valve is communicated with a second two-way valve through a radiator, a second liquid outlet is communicated with the third two-way valve through a cooling liquid passage of the heat exchanger, the PTC heater and a second cooling liquid branch, and the second cooling liquid branch is used for heating and cooling the battery pack.
Furthermore, the integrated kettle water pump is integrated with the first two-way valve, the second two-way valve and the third two-way valve.
Further, the refrigerant circulation unit includes a compressor, a condenser, and a first expansion valve, an outlet of the compressor communicates with an inlet of the condenser, an outlet of the condenser communicates with a coolant passage inlet of the heat exchanger via the first expansion valve, and a coolant passage outlet of the heat exchanger communicates with an inlet of the compressor.
Further, the first expansion valve is an electronic expansion valve, and is integrated at the coolant passage inlet of the heat exchanger.
Further, the refrigerant cycle unit further includes a second expansion valve, an evaporator, and a blower fan, an outlet of the condenser is communicated with an inlet of the evaporator via the second expansion valve, an outlet of the evaporator is communicated with an inlet of the compressor, and the blower fan is connected with an air outlet of the evaporator, for blowing air cooled by the evaporator into the automobile.
Further, a second expansion valve is integrated at the inlet of the evaporator.
By adopting the technical scheme, the invention has the beneficial effects that: the invention solves the problems of huge system, lower integration level and reliability, larger overall space, difficult assembly and the like in the prior art, reduces the final assembly time and labor cost, can ensure that the battery is charged and discharged in an optimal temperature range all the time, improves the charging and discharging efficiency and endurance of the battery and prolongs the service life of the battery.
Drawings
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
FIG. 1 is a functional block diagram of the integrated electric vehicle thermal management system of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1, an integrated electric vehicle thermal management system may include a controller (not shown), a water pump & valve coolant circulation unit, a refrigerant circulation unit, a PTC heater 3, a radiator 4, and a heat exchanger 5. The water pump & valve coolant circulation unit may include an integrated kettle water pump 11, a three-way valve 12, a first two-way valve 13, a second two-way valve 14, and a third two-way valve 15, the integrated kettle water pump 11 having a first liquid outlet, a second liquid outlet, and a first liquid inlet, a second liquid inlet, and a third liquid inlet connected to the first two-way valve 13, the second two-way valve 14, and the third two-way valve 15, respectively. Preferably, the integrated kettle water pump 11 is integrated with the first, second and third two- way valves 13, 14 and 15 to reduce the occupied space and facilitate installation. The first liquid outlet is communicated with a first interface of the three-way valve 12 through a first cooling liquid branch, and the first cooling liquid branch is used for cooling the battery pack management block, the motor, the speed reducer, the inverter and the electric control system. A second port of the three-way valve 12 communicates with the first two-way valve 13, and a third port of the three-way valve 12 communicates with the second two-way valve 14 via the radiator 4. The second liquid outlet is communicated with the third two-way valve 15 through a cooling liquid passage of the heat exchanger 5, the PTC heater 3 and a second cooling liquid branch, and the second cooling liquid branch is used for heating and cooling the battery pack so as to ensure that the battery is charged and discharged in the optimal temperature range all the time, and the charging and discharging efficiency, the cruising ability and the service life of the battery are improved.
The refrigerant circulation unit may include a compressor 21, a condenser 22, a first expansion valve 23, a second expansion valve 24, an evaporator 25, and a blower fan (not shown), an outlet of the compressor 21 being in communication with an inlet of the condenser 22, an outlet of the condenser 22 being in communication with a coolant passage inlet of the heat exchanger 5 via the first expansion valve 23, and a coolant passage outlet of the heat exchanger 5 being in communication with an inlet of the compressor 21. That is, the refrigerant circulation unit 2, the water pump & valve coolant circulation unit, and the heat exchanger 5 form a circuit for cooling the battery pack; the PTC heater 3, the water pump & valve coolant circulation unit, and the heat exchanger 5 form a circuit for heating the battery pack. The outlet of the condenser 22 is simultaneously connected to the inlet of an evaporator 25 via a second expansion valve 24, the outlet of the evaporator 25 is connected to the inlet of the compressor 21, and a blower fan is connected to the outlet of the evaporator 25 for blowing air heated or cooled by the evaporator into the vehicle. That is, the refrigerant cycle unit serves as an air conditioner for the electric vehicle.
Preferably, the first expansion valve 23 is an electronic expansion valve, and is integrated at the coolant passage inlet of the heat exchanger 5 to reduce the occupied space and facilitate installation. Likewise, the second expansion valve 24 is integrated at the inlet of the evaporator 25 to reduce the occupied space and facilitate installation.
The working principle of the present invention is explained in detail below:
1) battery pack management block, motor, speed reducer, inverter and electric control system cooling process
When the controller detects that the temperature of the battery pack management block, the motor, the speed reducer, the inverter, the electric control system and the like exceeds a specified temperature, starting the integrated kettle water pump 11 to work; when the temperature of the cooling liquid is low, a small circulation is adopted, namely the cooling liquid does not pass through the radiator 4, and the specific circulation loop is as follows: integral type kettle water pump 11- > battery package management piece- > automatically controlled- > motor, reduction gear, dc-to-ac converter- > three-way valve 12- > first two-way valve 13- > integral type kettle water pump 11, when the temperature risees to a definite value, begin the major cycle, through radiator 4 promptly, specific circulation circuit is: the integrated kettle water pump 11- > the battery pack management block- > the electric control- > the motor, the speed reducer, the inverter- > the three-way valve 12- > the radiator 4- > the second two-way valve 14- > the integrated kettle water pump 11.
2) Battery pack cooling process
When the vehicle is discharged or charged during running, when the controller detects that the temperature of the battery exceeds the optimal discharging or charging temperature, the controller sends an instruction to start the compressor 21 to work, the refrigerant is compressed into a high-temperature high-pressure gaseous refrigerant through the compressor 21, the high-temperature high-pressure gaseous refrigerant is radiated through the condenser 22 to become a normal-temperature high-pressure liquid refrigerant, the normal-temperature high-pressure liquid refrigerant is throttled through the first expansion valve 23 to become a normal-temperature low-pressure liquid refrigerant, the normal-temperature low-pressure liquid refrigerant absorbs the heat of the cooling liquid in the heat exchanger 5 to evaporate into low-temperature low-pressure steam, and the low-temperature low-pressure steam; at the same time, the temperature of the coolant in the heat exchanger 5 is lowered to cool the battery pack, and the coolant circulation loop is: PTC heater 3- > battery package- > third two-way valve 15- > integral type water pump kettle 11- > heat exchanger 5.
3) Battery pack heating process
When the master control detects that the vehicle needs to be started at a lower ambient temperature, the controller is informed, the controller sends an instruction to enable the PTC heater and the water pump & valve cooling liquid circulation unit 1 to work and heat the battery pack, and a cooling liquid circulation path is as follows: PTC heater 3- > battery package- > third two-way valve 15- > integral type water pump kettle 11- > heat exchanger 5- > PTC heater 3.
4) Refrigerating and heating process of passenger compartment (working principle of automobile air conditioner)
When the passenger cabin sends a refrigerating and heating demand, the controller receives a medium control cold and heating demand and then starts the compressor 21 to work, the second expansion valve 24 adjusts the rotating speed of the compressor 21 according to the ambient temperature and the demand, and the heat exchange is carried out between the compressor and the passenger cabin through the blower. The coolant circulation path is: compressor 21- > condenser 22- > second expansion valve 24- > evaporator 25- > compressor 21.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. An integrated electric automobile heat management system is characterized by comprising a controller, a refrigerant circulating unit, a PTC heater, a water pump and valve cooling liquid circulating unit, a radiator and a heat exchanger; the refrigerant circulating unit is in fluid communication with a refrigerant passage of the heat exchanger, the water pump & valve coolant circulating unit is in fluid communication with a coolant passage of the heat exchanger, the PTC heater and the radiator, and the controller is used for controlling the refrigerant circulating unit, the PTC heater and the water pump & valve coolant circulating unit to operate so as to achieve thermal management of the electric automobile.
2. The integrated thermal management system of an electric vehicle of claim 1, wherein the water pump & valve coolant circulation unit comprises an integrated kettle water pump, a three-way valve, a first two-way valve, a second two-way valve, and a third two-way valve, the integrated kettle water pump having a first liquid outlet, a second liquid outlet, and a first liquid inlet, a second liquid inlet, and a third liquid inlet connected to the first two-way valve, the second two-way valve, and the third two-way valve, respectively, the first liquid outlet being in communication with a first port of the three-way valve via a first coolant branch, the first coolant branch being used to cool the battery pack management block, the motor, the reducer, the inverter, and the electronic control system, the second port of the three-way valve being in communication with the first two-way valve, the third port of the three-way valve being in communication with the second two-way valve via a heat sink, the PTC heater, and the second cooling liquid branch is communicated with the third two-way valve and used for heating and cooling the battery pack.
3. The integrated electric vehicle thermal management system of claim 2, wherein the integrated kettle water pump is integrated with the first two-way valve, the second two-way valve, and the third two-way valve.
4. The integrated electric vehicle thermal management system of claim 1, wherein the refrigerant circulation unit comprises a compressor, a condenser and a first expansion valve, an outlet of the compressor is communicated with an inlet of the condenser, an outlet of the condenser is communicated with a coolant passage inlet of the heat exchanger via the first expansion valve, and a coolant passage outlet of the heat exchanger is communicated with an inlet of the compressor.
5. The integrated electric vehicle thermal management system of claim 4, wherein the first expansion valve is an electronic expansion valve integrated at a coolant passage inlet of the heat exchanger.
6. The integrated thermal management system for electric vehicles of claim 4, wherein the refrigerant cycle unit further comprises a second expansion valve, an evaporator, and a blower, an outlet of the condenser is communicated with an inlet of the evaporator via the second expansion valve, an outlet of the evaporator is communicated with an inlet of the compressor, and the blower is connected to an outlet of the evaporator for blowing air cooled by the evaporator into the vehicle.
7. The integrated electric vehicle thermal management system of claim 6, wherein the second expansion valve is integrated at an inlet of the evaporator.
CN202010553445.8A 2020-06-17 2020-06-17 Integrated electric automobile heat management system Pending CN111572410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010553445.8A CN111572410A (en) 2020-06-17 2020-06-17 Integrated electric automobile heat management system

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Application Number Priority Date Filing Date Title
CN202010553445.8A CN111572410A (en) 2020-06-17 2020-06-17 Integrated electric automobile heat management system

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Publication Number Publication Date
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112128077A (en) * 2020-09-23 2020-12-25 耒阳金悦科技发展有限公司 Cooling device for compression mechanism of compressor
CN112549935A (en) * 2020-12-09 2021-03-26 安徽江淮汽车集团股份有限公司 Coolant circulation system and vehicle
CN113258168A (en) * 2021-05-13 2021-08-13 合肥工业大学 Power battery pack integrated thermal management system and control method
CN114285297A (en) * 2020-09-27 2022-04-05 华为数字能源技术有限公司 Inverter, power assembly and electric vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112128077A (en) * 2020-09-23 2020-12-25 耒阳金悦科技发展有限公司 Cooling device for compression mechanism of compressor
CN114285297A (en) * 2020-09-27 2022-04-05 华为数字能源技术有限公司 Inverter, power assembly and electric vehicle
CN112549935A (en) * 2020-12-09 2021-03-26 安徽江淮汽车集团股份有限公司 Coolant circulation system and vehicle
CN113258168A (en) * 2021-05-13 2021-08-13 合肥工业大学 Power battery pack integrated thermal management system and control method

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