CN108674219A - New energy car battery heat management system - Google Patents
New energy car battery heat management system Download PDFInfo
- Publication number
- CN108674219A CN108674219A CN201810386269.6A CN201810386269A CN108674219A CN 108674219 A CN108674219 A CN 108674219A CN 201810386269 A CN201810386269 A CN 201810386269A CN 108674219 A CN108674219 A CN 108674219A
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- Prior art keywords
- expansion valve
- heat exchanger
- electromagnetism
- outlet
- heat exchange
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Classifications
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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
- B60L58/27—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
- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
-
- 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
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- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- 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
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of new energy car battery heat management system, including battery heat exchange unit and air-conditioning heat exchange unit, battery heat exchange unit includes the battery cooling plate being arranged in battery pack, plate heat exchanger and electronic water pump；Air-conditioning heat exchange unit includes compressor and is integrated with the electromagnetism thermal expansion valve of solenoid valve, and electromagnetism thermal expansion valve is connected to plate heat exchanger by pipeline；The outlet of compressor is connected with vehicle external heat exchanger, throttle orifice pipe and flash vessel in turn, the vapor outlet of flash vessel is connected to the middle pressure input port of compressor, the outlet of flash vessel is connected separately with electric expansion valve and electromagnetism thermal expansion valve, and gas-liquid separator is connected between electromagnetism thermal expansion valve and compressor；The outlet of electric expansion valve is connected to the interior evaporator of air-conditioning, and the outlet of interior evaporator is connected to gas-liquid separator.The present invention have it is compact-sized, the advantages that can be freezed to battery pack or be heated, be conducive to that battery pack is made to be operated in optimum temperature range.
Description
Technical field
The present invention relates to new energy car battery technical fields, in particular to a kind of new energy car battery heat management system
System.
Background technology
For power battery during high current charge-discharge, inside battery can gather a large amount of heat, if heat excludes not in time
Then battery pack temperature drastically increases, especially large-capacity battery pack, usual thermal discharge higher and the need due to meeting energy density
It is more easy to accumulation heat, so as to cause thermal runaway, battery release gas is further brought, smolders, the consequence of leakage, in some instances it may even be possible to
Battery can be caused to burn, otherwise battery pack is in low temperature environment, the service life may be shortened, weaken discharge capability, institute
It is particularly important with the temperature management of power battery.
Invention content
In view of the above shortcomings of the prior art, the technical problem to be solved by the present invention is to：It is tight how a kind of structure is provided
It gathers, can battery pack be freezed or be heated, be conducive to that battery pack is made to be operated in the new-energy automobile in optimum temperature range
Battery thermal management system.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions：
A kind of new energy car battery heat management system, including battery heat exchange unit and air-conditioning heat exchange unit；It is characterized in that, institute
It includes the battery cooling plate being arranged in battery pack, plate heat exchanger and electronic water pump, the battery to state battery heat exchange unit
Coldplate, plate heat exchanger and electronic water pump pass through the internal battery thermal cycle piping connection containing heat exchange liquid；The air-conditioning changes
Hot cell includes compressor and is integrated with the electromagnetism thermal expansion valve of solenoid valve, on the electromagnetism thermal expansion valve there are two groups of correspondences to set
The refrigerant inlet and refrigerant exit set, two refrigerant exits are respectively connected to two of the plate heat exchanger by pipeline
It exchanges heat on mouth；The outlet of the compressor is connected with vehicle external heat exchanger, throttle orifice pipe and flash vessel in turn, the flash vessel
Vapor outlet is connected to the middle pressure input port of the compressor, and another outlet of the flash vessel is connected separately with by the first threeway
One refrigerant inlet of electric expansion valve and the electromagnetism thermal expansion valve, another refrigerant inlet of the electromagnetism thermal expansion valve with
It is connected with gas-liquid separator between the air inlet of the compressor；The outlet of the electric expansion valve passes through the first electromagnetism two-port valve
It is connected to the interior evaporator of air-conditioning, the outlet of the interior evaporator is connected to the gas-liquid separator.
Using the above structure, it when work, after gaseous coolant is compressed into liquid by compressor, is sent into vehicle external heat exchanger, it is cold
Matchmaker's volume under the action of compressor becomes smaller so that temperature increases, and into after vehicle external heat exchanger, passes through vehicle external heat exchanger and the external world
It exchanges heat, to reduce the temperature of refrigerant, liquid refrigerants passes through throttle orifice pipe, forms gas-liquid mixture phase, gas-liquid mixed shape
After the refrigerant of state enters in flash vessel, gaseous coolant enters in compressor, while taking away a large amount of heat so that liquid is cold
The temperature of matchmaker further decreases to form supercooled liquid refrigerant, and a part of supercooled liquid refrigerant enters plate by electromagnetism thermal expansion valve
It in formula heat exchanger, exchanges heat with the heat exchange liquid in plate heat exchanger, to reduce the temperature of heat exchange liquid.Low-temperature heat exchange liquid is in electricity
It is recycled into the battery cooling plate in battery pack under the action of sub- water pump, cools down to battery pack, so as to prevent electricity
The temperature of pond group is excessively high, and battery pack is made to be operated in optimum temperature range.Another part supercooled liquid refrigerant enters in air-conditioning
Evaporator exchanges heat with the circulated air of air-conditioning, freezes with crew module.Supercooled liquid refrigerant temperature after heat exchange increases and becomes
Gaseous state is recycled after then entering gas-liquid separator removal liquid by pipeline into compression function.Due to electric expansion valve
Outlet be provided with the first electromagnetism two-port valve, in this way, closing the first electromagnetism two-port valve, open electromagnetism thermal expansion valve, allow supercooled liquid
State refrigerant enters battery heat exchange unit, so that it may carry out separate refrigeration to battery pack to realize.The first electromagnetism two-port valve is opened, is closed
Electromagnetism thermal expansion valve is closed, supercooled liquid refrigerant is allowed to enter in air-conditioning, so that it may separate refrigeration be carried out to crew module to realize.And simultaneously
Open the first electromagnetism two-port valve and electromagnetism thermal expansion valve, so that it may to realize the refrigeration of crew module and battery pack simultaneously.
Further, it is also connected between the outlet of the compressor and the vehicle external heat exchanger and is provided with the second threeway, institute
On the heat exchange mouth that another outlet for stating the second threeway passes through piping connection to the plate heat exchanger, the plate heat exchanger
Another heat exchange mouth be connected to the electric expansion valve；The vehicle external heat exchanger connects one end piping connection of the compressor
To the gas-liquid separator.
In this way, when closing the first electromagnetism two-port valve and electromagnetism thermal expansion valve, since flash vessel is between electromagnetism thermal expansion valve
Circuit disconnect, the compression refrigerant of compressor outlet can select the smaller circuit flowing of pressure, therefore compression refrigerant passes through pipeline
Plate heat exchanger is entered, and the heat exchange liquid in raised temperature in compression process and plate heat exchanger is subjected to heat exchange, from
And the temperature of heat exchange liquid is improved, heat exchange liquid is flowed under the action of electronic water pump in battery cooling plate, to realize to battery pack
Heating.Refrigerant after heat exchange is after electric expansion valve, and into flash vessel, a part of gaseous coolant enters compression
In machine, another part liquid refrigerants flows through vehicle external heat exchanger（It is equivalent to evaporator）, heat exchange is carried out with the external world, eventually by gas
Liquid/gas separator returns in compressor.
Further, another outlet of second threeway is additionally coupled to the inner condenser of air-conditioning, the inner condenser
Outlet is connected to the electric expansion valve by being provided with the pipeline of the second electromagnetism two-port valve.
In this way, a part of compression refrigerant can enter in inner condenser, heat exchange is carried out with the circulated air in air-conditioning, is carried
The temperature of high circulation wind, to realize to being heated in crew module.Due to being set on the pipeline between inner condenser and electric expansion valve
It is equipped with second solenoid valve, can realize the independent heating to battery pack by closing the second electromagnetism two-port valve.
Further, second threeway is provided with third electromagnetism two-port valve on the pipeline of the plate heat exchanger.
In this way, can be by closing independent heating of the third electromagnetism two-port valve realization to crew module.
Further, it is additionally provided with the 4th electromagnetism two on the pipeline between the vehicle external heat exchanger and the gas-liquid separator
Port valve.
In this way, can be cooperated by the 4th electromagnetism two-port valve, the first electromagnetism two-port valve and electromagnetism thermal expansion valve, it is real
The conversion of the refrigeration and heating mode of existing battery thermal management system so that conversion is relatively reliable.
Further, further include the electronic fan of vehicle external heat exchanger setting described in face.
In this way, the heat exchange efficiency between the refrigerant and air in vehicle external heat exchanger can be improved.
Further, the electric expansion valve is also serially connected with filter away from one end of the flash vessel.
In conclusion the present invention have it is compact-sized, can battery pack be freezed or be heated, be conducive to make battery pack
The advantages that being operated in optimum temperature range.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Specific implementation mode
With reference to embodiment, the present invention is described in further detail.
When specific implementation：As shown in Figure 1, a kind of new energy car battery heat management system, including 1 He of battery heat exchange unit
Air-conditioning heat exchange unit 2；The battery heat exchange unit 1 includes the battery cooling plate 11 being arranged in battery pack, plate heat exchanger 12
And electronic water pump 13, the battery cooling plate 11, plate heat exchanger 12 and electronic water pump 13 contain the liquid that exchanges heat by internal
Battery thermal cycle piping connection；The air-conditioning heat exchange unit 2 includes compressor 21 and the electromagnetism thermal expansion valve for being integrated with solenoid valve
26, there are on the electromagnetism thermal expansion valve 26 two groups of refrigerant inlets being correspondingly arranged and refrigerant exit, two refrigerant exits
It is respectively connected on two heat exchange mouths of the plate heat exchanger 12 by pipeline；The outlet of the compressor 21 is connected in turn
The vapor outlet of vehicle external heat exchanger 22, throttle orifice pipe 23 and flash vessel 24, the flash vessel 24 is connected to the compressor 21
Another outlet of middle pressure input port, the flash vessel 24 is connected separately with electric expansion valve 25 and the electromagnetism by the first threeway
One refrigerant inlet of thermal expansion valve 26, another refrigerant inlet of the electromagnetism thermal expansion valve 26 and the compressor 21 into
Gas-liquid separator 28 is connected between gas port；The outlet of the electric expansion valve 25 is connected to air-conditioning by the first electromagnetism two-port valve
Interior evaporator 27, the outlet of the interior evaporator 27 is connected to the gas-liquid separator 28.
Using the above structure, it when work, after gaseous coolant is compressed into liquid by compressor, is sent into vehicle external heat exchanger, it is cold
Matchmaker's volume under the action of compressor becomes smaller so that temperature increases, and into after vehicle external heat exchanger, passes through vehicle external heat exchanger and the external world
It exchanges heat, to reduce the temperature of refrigerant, liquid refrigerants passes through throttle orifice pipe, forms gas-liquid mixture phase, gas-liquid mixed shape
After the refrigerant of state enters in flash vessel, gaseous coolant enters in compressor, while taking away a large amount of heat so that liquid is cold
The temperature of matchmaker further decreases to form supercooled liquid refrigerant, and a part of supercooled liquid refrigerant enters plate by electromagnetism thermal expansion valve
It in formula heat exchanger, exchanges heat with the heat exchange liquid in plate heat exchanger, to reduce the temperature of heat exchange liquid.Low-temperature heat exchange liquid is in electricity
It is recycled into the battery cooling plate in battery pack under the action of sub- water pump, cools down to battery pack, so as to prevent electricity
The temperature of pond group is excessively high, and battery pack is made to be operated in optimum temperature range.Another part supercooled liquid refrigerant enters in air-conditioning
Evaporator exchanges heat with the circulated air of air-conditioning, freezes with crew module.Supercooled liquid refrigerant temperature after heat exchange increases and becomes
Gaseous state is recycled after then entering gas-liquid separator removal liquid by pipeline into compression function.Due to electric expansion valve
Outlet be provided with the first electromagnetism two-port valve, in this way, closing the first electromagnetism two-port valve, open electromagnetism thermal expansion valve, allow supercooled liquid
State refrigerant enters battery heat exchange unit, so that it may carry out separate refrigeration to battery pack to realize.The first electromagnetism two-port valve is opened, is closed
Electromagnetism thermal expansion valve is closed, supercooled liquid refrigerant is allowed to enter in air-conditioning, so that it may separate refrigeration be carried out to crew module to realize.And simultaneously
Open the first electromagnetism two-port valve and electromagnetism thermal expansion valve, so that it may to realize the refrigeration of crew module and battery pack simultaneously.
When implementation, it is also connected between the outlet of the compressor 21 and the vehicle external heat exchanger 22 and is provided with the second threeway,
Another outlet of second threeway is described board-like to change by one of piping connection to the plate heat exchanger 12 heat exchange mouth
Another heat exchange mouth of hot device 12 is connected to the electric expansion valve 25；The vehicle external heat exchanger 22 connects the compressor 21
One end piping connection is to the gas-liquid separator 28.
In this way, when closing the first electromagnetism two-port valve and electromagnetism thermal expansion valve, since flash vessel is between electromagnetism thermal expansion valve
Circuit disconnect, the compression refrigerant of compressor outlet can select the smaller circuit flowing of pressure, therefore compression refrigerant passes through pipeline
Plate heat exchanger is entered, and the heat exchange liquid in raised temperature in compression process and plate heat exchanger is subjected to heat exchange, from
And the temperature of heat exchange liquid is improved, heat exchange liquid is flowed under the action of electronic water pump in battery cooling plate, to realize to battery pack
Heating.Refrigerant after heat exchange is after electric expansion valve, and into flash vessel, a part of gaseous coolant enters compression
In machine, another part liquid refrigerants flows through vehicle external heat exchanger（It is equivalent to evaporator）, heat exchange is carried out with the external world, eventually by gas
Liquid/gas separator returns in compressor.
When implementation, another outlet of second threeway is additionally coupled to the inner condenser 29 of air-conditioning, the inner condenser 29
Outlet be connected to the electric expansion valve 25 by being provided with the pipeline of the second electromagnetism two-port valve.
In this way, a part of compression refrigerant can enter in inner condenser, heat exchange is carried out with the circulated air in air-conditioning, is carried
The temperature of high circulation wind, to realize to being heated in crew module.Due to being set on the pipeline between inner condenser and electric expansion valve
It is equipped with second solenoid valve, can realize the independent heating to battery pack by closing the second electromagnetism two-port valve.
When implementation, second threeway is provided with third electromagnetism two-port valve on the pipeline of the plate heat exchanger 12.
In this way, can be by closing independent heating of the third electromagnetism two-port valve realization to crew module.
When implementation, the 4th electromagnetism is additionally provided on the pipeline between the vehicle external heat exchanger 22 and the gas-liquid separator 28
Two-port valve.
In this way, can be cooperated by the 4th electromagnetism two-port valve, the first electromagnetism two-port valve and electromagnetism thermal expansion valve, it is real
The conversion of the refrigeration and heating mode of existing battery thermal management system so that conversion is relatively reliable.
Further include the electronic fan 3 that vehicle external heat exchanger 22 described in face is arranged when implementation.
In this way, the heat exchange efficiency between the refrigerant and air in vehicle external heat exchanger can be improved.
When implementation, the electric expansion valve 25 is also serially connected with filter 4 away from one end of the flash vessel 24.
When it is implemented, the air-conditioning heat exchange unit 2 further includes the outer shroud sense being arranged in 22 outside of the vehicle external heat exchanger
The import temperature sensing package 52 on the pipeline between the vehicle external heat exchanger 22 and the throttle orifice pipe 23 is arranged in thermometer bulb 51, setting
The interior condenser temperature sensing package 53, Yi Jishe on pipeline between the electric expansion valve 25 and the second electromagnetism two-port valve
Set the temperature/pressure sensor 54 in 21 exit of the compressor.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not limitation, all essences in the present invention with the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (7)
1. a kind of new energy car battery heat management system, including battery heat exchange unit（1）With air-conditioning heat exchange unit（2）；It is special
Sign is, the battery heat exchange unit（1）Including the battery cooling plate being arranged in battery pack（11）, plate heat exchanger（12）With
And electronic water pump（13）, the battery cooling plate（11）, plate heat exchanger（12）And electronic water pump（13）Contained by inside and is changed
The battery thermal cycle piping connection of hydrothermal solution；The air-conditioning heat exchange unit（2）Including compressor（21）With the electricity for being integrated with solenoid valve
Magnetic thermal expansion valve（26）, the electromagnetism thermal expansion valve（26）Going up has two groups of refrigerant inlets being correspondingly arranged and refrigerant exit, and two
A refrigerant exit is respectively connected to the plate heat exchanger by pipeline（12）Two heat exchange mouths on；The compressor
（21）Outlet be connected with vehicle external heat exchanger in turn（22）, throttle orifice pipe（23）And flash vessel（24）, the flash vessel（24）
Vapor outlet be connected to the compressor（21）Middle pressure input port, the flash vessel（24）Another outlet pass through the first threeway
It is connected separately with electric expansion valve（25）With the electromagnetism thermal expansion valve（26）A refrigerant inlet, the electromagnetism thermal expansion valve
（26）Another refrigerant inlet and the compressor（21）Air inlet between be connected with gas-liquid separator（28）；The electronics
Expansion valve（25）Outlet the interior evaporator of air-conditioning is connected to by the first electromagnetism two-port valve（27）, the interior evaporator（27）'s
Outlet is connected to the gas-liquid separator（28）.
2. new energy car battery heat management system as described in claim 1, which is characterized in that the compressor（21）Go out
Mouth and the vehicle external heat exchanger（22）Between be also connected with and be provided with the second threeway, another outlet of second threeway passes through pipeline
It is connected to the plate heat exchanger（12）One heat exchange mouth on, the plate heat exchanger（12）Another heat exchange mouth be connected to
The electric expansion valve（25）；The vehicle external heat exchanger（22）Connect the compressor（21）One end piping connection to the gas
Liquid/gas separator（28）.
3. new energy car battery heat management system as claimed in claim 2, which is characterized in that second threeway it is another
Outlet is additionally coupled to the inner condenser of air-conditioning（29）, the inner condenser（29）Outlet by being provided with the second electromagnetism two-port valve
Pipeline be connected to the electric expansion valve（25）.
4. new energy car battery heat management system as claimed in claim 3, which is characterized in that second threeway with it is described
Plate heat exchanger（12）Pipeline on be provided with third electromagnetism two-port valve.
5. new energy car battery heat management system as claimed in claim 2, which is characterized in that the vehicle external heat exchanger（22）
With the gas-liquid separator（28）Between pipeline on be additionally provided with the 4th electromagnetism two-port valve.
6. new energy car battery heat management system as described in claim 1, which is characterized in that further include outside vehicle described in face
Heat exchanger（22）The electronic fan of setting（3）.
7. new energy car battery heat management system as described in claim 1, which is characterized in that the electric expansion valve（25）
Away from the flash vessel（24）One end be also serially connected with filter（4）.
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| CN201810386269.6A CN108674219A (en) | 2018-04-26 | 2018-04-26 | New energy car battery heat management system |
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| CN201810386269.6A CN108674219A (en) | 2018-04-26 | 2018-04-26 | New energy car battery heat management system |
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| CN108674219A true CN108674219A (en) | 2018-10-19 |
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| CN201810386269.6A Pending CN108674219A (en) | 2018-04-26 | 2018-04-26 | New energy car battery heat management system |
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| CN (1) | CN108674219A (en) |
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