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CN111137175A - Electric automobile thermal management system - Google Patents

Electric automobile thermal management system Download PDF

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Publication number
CN111137175A
CN111137175A CN202010129990.4A CN202010129990A CN111137175A CN 111137175 A CN111137175 A CN 111137175A CN 202010129990 A CN202010129990 A CN 202010129990A CN 111137175 A CN111137175 A CN 111137175A
Authority
CN
China
Prior art keywords
heat exchange
management system
thermal management
evaporator
electric automobile
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202010129990.4A
Other languages
Chinese (zh)
Inventor
邹月伟
郭齐杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Nandu Hongxin Power Technology Co Ltd
Original Assignee
Zhejiang Nandu Hongxin Power 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 Zhejiang Nandu Hongxin Power Technology Co Ltd filed Critical Zhejiang Nandu Hongxin Power Technology Co Ltd
Priority to CN202010129990.4A priority Critical patent/CN111137175A/en
Publication of CN111137175A publication Critical patent/CN111137175A/en
Pending legal-status Critical Current

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Classifications

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

Abstract

The invention discloses an electric automobile heat management system which comprises a compressor, wherein the compressor is connected with a first end and a second end of a four-way valve, a third end of the four-way valve is connected with a first end of a condensation assembly, a second end of the condensation assembly is respectively connected with a first end of a water tank heat exchange assembly and a first end of a motor heat exchange assembly, and the second end of the water tank heat exchange assembly and the second end of the motor heat exchange assembly are connected with a fourth end of the four-way valve. The temperature regulation capability of the air conditioner is improved, the motor is rapidly cooled, and the temperature regulation is provided for the battery pack water cooling system. The refrigerating and heating system is integrally designed, the structure is compact, and the control logic is reasonable.

Description

Electric automobile thermal management system
Technical Field
The invention relates to the technical field of automobiles, in particular to a thermal management system of an electric automobile.
Background
Conventional automotive thermal management systems have evolved relatively mature. Under the great trend of electric automobile development, most electric automobile manufacturers only replace the motor with a motor to provide power and extend the traditional automobile air conditioner and engine cooling system. The condenser of the air conditioning system is placed in front of the radiator of the motor cooling system and is cooled by a fan and natural wind in the running process of the vehicle. When the ambient temperature is high, the condenser and the radiator are all heat-radiating devices, and influence each other causes that the temperature can not be reduced with high efficiency. The car heating system, the cooling system and the motor cooling system are low in correlation with each other. Resulting in a complex structure and a part of the device in a non-working state in a specific scene. Meanwhile, the added battery pack of the electric automobile also needs effective heat management. The battery pack needs to be heated and cooled by an air conditioning system of the electric automobile.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention provides a thermal management system for an electric vehicle, which can solve the technical problems in the related art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the utility model provides an electric automobile thermal management system, includes the compressor, the compressor is connected with the first end and the second end of cross valve, the third end of cross valve is connected with the first end of condensation subassembly, the second end of condensation subassembly is connected with the first end of water tank heat transfer subassembly and the first end of motor heat transfer subassembly respectively, the second end of water tank heat transfer subassembly with the second end of motor heat transfer subassembly is connected the fourth end of cross valve.
Furthermore, a first electromagnetic valve is arranged between the second end of the motor heat exchange assembly and the fourth end of the four-way valve, and a second electromagnetic valve is arranged between the first end of the condensing assembly and the second end of the motor heat exchange assembly.
Further, the condensation assembly comprises a condenser and a fan arranged on the condenser.
Furthermore, a third electromagnetic valve is arranged between the condensation component and the water tank heat exchange component.
Further, water tank heat transfer subassembly includes first evaporimeter, the first end of first evaporimeter is connected with the first end of PTC heater, the second end of PTC heater connects gradually battery package, first water tank, first water pump and the second end of first evaporimeter.
Furthermore, the first end of first evaporimeter is connected with the first end of fourth solenoid valve, the second end of fourth solenoid valve is connected with water-cooling heat exchanger's first end, water-cooling heat exchanger's second end connect in the water tank with between the battery package.
Furthermore, a fifth electromagnetic valve is connected in parallel at two ends of the battery pack.
Furthermore, the motor heat exchange assembly comprises a second evaporator, and a first end of the second evaporator is sequentially connected with a second water pump, a second water tank, a motor and a second end of the second evaporator.
Further, a blower is arranged on the water-cooling heat exchanger.
The invention has the beneficial effects that: the temperature regulation capability of the air conditioner is improved, the motor is rapidly cooled, and the temperature regulation is provided for the battery pack water cooling system. The refrigerating and heating system is integrally designed, the structure is compact, and the control logic is reasonable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow diagram of cooling of an electric vehicle thermal management system;
FIG. 2 is a schematic flow chart of heating of the thermal management system of the electric vehicle.
In the figure: 1. the air conditioner comprises a compressor, a four-way valve 2, a first electromagnetic valve 3, a second electromagnetic valve 4, a condenser 5, a fan 6, a third electromagnetic valve 7, a second evaporator 8, a second water pump 9, a second water tank 10, a motor 11, a first evaporator 12, a first water pump 13, a first water tank 14, a blower 15, a water-cooling heat exchanger 16, a fourth electromagnetic valve 17, a PTC heater 18, a fifth electromagnetic valve 19 and a battery pack 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1-2, the thermal management system for an electric vehicle according to an embodiment of the present invention includes a compressor 1, the compressor 1 is connected to a first end and a second end of a four-way valve 2, a third end of the four-way valve 2 is connected to a first end of a condensing assembly, a second end of the condensing assembly is respectively connected to a first end of a water tank heat exchange assembly and a first end of a motor heat exchange assembly, and the second end of the water tank heat exchange assembly and the second end of the motor heat exchange assembly are connected to a fourth end of the four-way valve 2.
In one embodiment of the present invention, a first solenoid valve 3 is disposed between the second end of the motor heat exchange assembly and the fourth end of the four-way valve 2, and a second solenoid valve 4 is disposed between the first end of the condensing assembly and the second end of the motor heat exchange assembly.
In one embodiment of the invention, the condensation assembly comprises a condenser 5 and a fan 6 arranged on the condenser 5.
In a specific embodiment of the present invention, a third electromagnetic valve 7 is arranged between the condensation assembly and the water tank heat exchange assembly.
In one embodiment of the present invention, the water tank heat exchange assembly includes a first evaporator 12, a first end of the first evaporator 12 is connected to a first end of a PTC heater 18, and a second end of the PTC heater 18 is connected to a battery pack 20, a first water tank 14, a first water pump 13, and a second end of the first evaporator 12 in sequence.
In an embodiment of the present invention, a first end of a fourth solenoid valve 17 is connected to a first end of the first evaporator 12, a second end of the fourth solenoid valve 17 is connected to a first end of a water-cooled heat exchanger 16, and a second end of the water-cooled heat exchanger 16 is connected between the water tank 14 and the battery pack 20.
In an embodiment of the present invention, the battery pack 20 has fifth solenoid valves 19 connected in parallel at both ends thereof.
In a specific embodiment of the present invention, the motor heat exchange assembly includes a second evaporator 8, and a first end of the second evaporator 8 is connected to a second water pump 9, a second water tank 10, a motor 11, and a second end of the second evaporator 8 in sequence.
In one embodiment of the present invention, the water-cooled heat exchanger 16 is provided with a blower 15.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
In specific use, according to the electric automobile thermal management system, when the ambient temperature is high, the refrigerant passes through the air-cooled condenser 5 under the action of the compressor 1, and returns to the compressor 1 through the second evaporator 8 and the first evaporator 12. At this time, the first solenoid valve 3 and the fifth solenoid valve 19 are opened, and the second solenoid valve 4 is closed. The battery pack 20 and the water-cooled heat exchanger 16 are connected to the first evaporator 12 via water passages, and the cooling liquid in the pipe is circulated and cooled by the first water pump 13, thereby providing conditions for cooling the vehicle interior and the battery pack 20. Meanwhile, the second evaporator 8 is connected to a motor coolant line to forcibly cool the motor 11.
When the ambient temperature is low, the refrigerant is moved in the counterclockwise direction by the four-way valve 2, passes through the first evaporator 12, and the condenser 5 and the second evaporator 8. At this time, the second solenoid valve 4 and the third solenoid valve 7 are opened, and the first solenoid valve 3 is closed. In this mode, the first evaporator 12 performs a condenser function of heating, and the condenser 5 and the second evaporator 8 perform an evaporator function. Because the ambient temperature is low, the condenser 5 has limited heat exchange capacity, and the heat of the refrigerant is increased by exchanging heat in the motor cooling liquid through the second evaporator 8. When the temperature in the water cooling system of the battery pack 20 is not sufficient, the circulating coolant may be heated by the PTC heater 18.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. The utility model provides an electric automobile thermal management system, includes compressor (1), its characterized in that, compressor (1) is connected with the first end and the second end of cross valve (2), the third end of cross valve (2) is connected with the first end of condensation subassembly, the second end of condensation subassembly is connected with water tank heat exchange assemblies's first end and motor heat exchange assemblies's first end respectively, water tank heat exchange assemblies's second end with motor heat exchange assemblies's second end is connected the fourth end of cross valve (2).
2. The thermal management system of the electric automobile according to claim 1, characterized in that a first solenoid valve (3) is arranged between the second end of the motor heat exchange assembly and the fourth end of the four-way valve (2), and a second solenoid valve (4) is arranged between the first end of the condensing assembly and the second end of the motor heat exchange assembly.
3. The thermal management system of an electric vehicle according to claim 1, wherein the condensation assembly comprises a condenser (5) and a fan (6) disposed on the condenser (5).
4. The thermal management system of the electric automobile according to claim 1, characterized in that a third solenoid valve (7) is arranged between the condensation component and the water tank heat exchange component.
5. The thermal management system of the electric automobile according to claim 1, characterized in that the water tank heat exchange assembly comprises a first evaporator (12), a first end of the first evaporator (12) is connected with a first end of a PTC heater (18), and a second end of the PTC heater (18) is sequentially connected with a battery pack (20), a first water tank (14), a first water pump (13) and a second end of the first evaporator (12).
6. The thermal management system of the electric automobile according to claim 5, characterized in that a first end of a fourth solenoid valve (17) is connected to a first end of the first evaporator (12), a first end of a water-cooled heat exchanger (16) is connected to a second end of the fourth solenoid valve (17), and a second end of the water-cooled heat exchanger (16) is connected between the water tank (14) and the battery pack (20).
7. The thermal management system of the electric automobile according to claim 5, characterized in that a fifth electromagnetic valve (19) is connected in parallel to two ends of the battery pack (20).
8. The thermal management system of the electric automobile according to claim 1, wherein the electric motor heat exchange assembly comprises a second evaporator (8), and a second water pump (9), a second water tank (10), an electric motor (11) and a second end of the second evaporator (8) are sequentially connected to a first end of the second evaporator (8).
9. The thermal management system of the electric automobile according to claim 6, characterized in that a blower (15) is arranged on the water-cooled heat exchanger (16).
CN202010129990.4A 2020-02-28 2020-02-28 Electric automobile thermal management system Pending CN111137175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010129990.4A CN111137175A (en) 2020-02-28 2020-02-28 Electric automobile thermal management system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010129990.4A CN111137175A (en) 2020-02-28 2020-02-28 Electric automobile thermal management system

Publications (1)

Publication Number Publication Date
CN111137175A true CN111137175A (en) 2020-05-12

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ID=70528173

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010129990.4A Pending CN111137175A (en) 2020-02-28 2020-02-28 Electric automobile thermal management system

Country Status (1)

Country Link
CN (1) CN111137175A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080078542A1 (en) * 2004-02-04 2008-04-03 Gering Kevin L Thermal management methods
FR2913217A1 (en) * 2007-03-02 2008-09-05 Renault Sas Heat energy management system for motor vehicle, has inverting unit permitting flow of refrigerant to compressor when unit is in position identical to pump mode position, for obtaining functioning based on evaluation mode of calories
CN108638785A (en) * 2018-04-16 2018-10-12 中国科学院广州能源研究所 Novel electric vehicle heat pump air conditioning system based on phase-change energy storage defrosting and its control method
CN108973591A (en) * 2018-08-02 2018-12-11 威马智慧出行科技（上海）有限公司 Electric car temperature regulation system and its control method
CN109572367A (en) * 2019-01-10 2019-04-05 南京协众汽车空调集团有限公司 A kind of new-energy automobile R290 heat pump heat management system and its working method
CN110481269A (en) * 2019-08-26 2019-11-22 罗富亮 A kind of automobile heat pump air-conditioning system can be used for engine cooling

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080078542A1 (en) * 2004-02-04 2008-04-03 Gering Kevin L Thermal management methods
FR2913217A1 (en) * 2007-03-02 2008-09-05 Renault Sas Heat energy management system for motor vehicle, has inverting unit permitting flow of refrigerant to compressor when unit is in position identical to pump mode position, for obtaining functioning based on evaluation mode of calories
CN108638785A (en) * 2018-04-16 2018-10-12 中国科学院广州能源研究所 Novel electric vehicle heat pump air conditioning system based on phase-change energy storage defrosting and its control method
CN108973591A (en) * 2018-08-02 2018-12-11 威马智慧出行科技（上海）有限公司 Electric car temperature regulation system and its control method
CN109572367A (en) * 2019-01-10 2019-04-05 南京协众汽车空调集团有限公司 A kind of new-energy automobile R290 heat pump heat management system and its working method
CN110481269A (en) * 2019-08-26 2019-11-22 罗富亮 A kind of automobile heat pump air-conditioning system can be used for engine cooling

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Application publication date: 20200512

RJ01 Rejection of invention patent application after publication