WO2016200144A1 - Battery pack thermal management system for electric vehicle - Google Patents

Battery pack thermal management system for electric vehicle Download PDF

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Publication number
WO2016200144A1
WO2016200144A1 PCT/KR2016/006066 KR2016006066W WO2016200144A1 WO 2016200144 A1 WO2016200144 A1 WO 2016200144A1 KR 2016006066 W KR2016006066 W KR 2016006066W WO 2016200144 A1 WO2016200144 A1 WO 2016200144A1
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WO
WIPO (PCT)
Prior art keywords
refrigerant
water
battery pack
management system
thermal management
Prior art date
Application number
PCT/KR2016/006066
Other languages
English (en)
French (fr)
Inventor
Seongho Hong
Naehyun PARK
Jaehyun BAEK
Hyunmin SHIM
Original Assignee
Lg Electronics Inc.
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 Lg Electronics Inc. filed Critical Lg Electronics Inc.
Priority to CN201680033962.4A priority Critical patent/CN107735279A/zh
Publication of WO2016200144A1 publication Critical patent/WO2016200144A1/en

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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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • 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
    • H01M10/6567—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
    • H01M10/65—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
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • 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
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/11—Electric energy storages
    • B60Y2400/112—Batteries
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • 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

Definitions

  • the present invention relates to a battery pack thermal management system for an electric vehicle, and more particularly to a battery pack thermal management system for an electric vehicle, capable of reducing overall cost and weight by including an integral heat exchange module which cools or heats coolant for cooling or heating a battery pack, and of having improved versatility since the heat exchange module is usable as one of an existing water-refrigerant plate heat exchanger lacking a heating function and a heat exchange module having a heating function according to the purpose of use.
  • Electric vehicles are vehicles which are not driven by burning fossil fuel as in existing vehicle, but are driven using electric energy. Electric vehicles have advantages of emitting no exhaust gas and making less noise, but have not been commercialized because the battery is heavy and it takes a long time to charge the battery. In recent years, the development of electric vehicles has been accelerated again due to problems relating to severe pollution, the exhaustion of fossil fuel, etc.
  • the battery may be provided as a battery pack formed by integrally installing a plurality of battery cells.
  • the battery pack may be discharged in a short time due to the severe consumption rate of the battery at a low temperature such as during the winter.
  • the typical electric vehicle includes a cooling system for cooling a battery pack which generates heat, and a heating system for heating the battery pack having a low temperature to a certain temperature.
  • FIG. 1 is a schematic diagram illustrating a battery pack thermal management system for an electric vehicle according to the related art.
  • the battery pack thermal management system for an electric vehicle includes a refrigerant cycle circuit 5a-5b-5c-5d in which refrigerant is circulated through a compressor 1, a condenser 2, an expander 3, and an evaporator 4, and a coolant circulation circuit 12a-12b in which water is circulated through a battery pack 10 by a circulation pump 8.
  • the battery pack thermal management system functions as a cooling system for cooling the battery pack, it is configured such that the water circulating in the coolant circulation circuit 12a-12b is introduced into a chiller-type heat exchanger 7 and exchanges heat with the refrigerant which is branched from the refrigerant cycle circuit 5a-5b-5c-5d to be supplied through a refrigerant supply pipe 6.
  • the water cooled by the chiller-type heat exchanger 7 flows into the battery pack 10 to cool the battery pack 10.
  • the battery pack thermal management system functions as a heating system for heating the battery pack
  • the water flowing in the coolant circulation circuit 12a-12b is heated by a separate heating unit 11 mounted in a portion 12a of the coolant circulation circuit 12a-12b, and then flows into the battery pack 10 to heat the battery pack 10.
  • the chiller-type heat exchanger 7 and the heating unit 11 are installed in a separate independent space, the overall size and weight of the battery pack may be increased.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a battery pack thermal management system for an electric vehicle, capable of reducing overall cost and weight by including an integral heat exchange module which cools or heats coolant for cooling or heating a battery pack, and of having improved versatility since the heat exchange module is usable as one of an existing water-refrigerant plate heat exchanger lacking a heating function and a heat exchange module having a heating function according to the purpose of use.
  • a battery pack thermal management system for an electric vehicle which includes a refrigerant cycle circuit in which refrigerant is circulated, a coolant circulation circuit in which water is circulated through a battery pack, and a heat exchange module disposed to share portions of the refrigerant cycle circuit and the coolant circulation circuit, so as to exchange heat between the water and the refrigerant in the refrigerant cycle circuit to cool the battery pack using the cooled water and so as to electrically heat the water to heat the battery pack using the heated water
  • the refrigerant in the refrigerant cycle circuit may be refrigerant circulated through a compressor, a condenser, an expander, and an evaporator installed for interior air conditioning in an electric vehicle.
  • the water in the coolant circulation circuit may be water passing through the battery pack by flow force of a circulation pump provided so as not to be involved in the circulation of the refrigerant in the refrigerant cycle circuit.
  • the heat exchange module may include a refrigerant accommodation body having an inner space defined such that the refrigerant is introduced into and accommodated in the inner space and is then discharged therefrom, the refrigerant accommodation body being arranged such that the water flows in the inner space through a heat exchange pipe.
  • the heat exchange module may further include a plurality of heating units detachably arranged to match at least one of one outer surface and the other surface of the refrigerant accommodation body so as to heat the water before the water is introduced into the inner space.
  • the heat exchange module may further include a plurality of heating units arranged in the inner space of the refrigerant accommodation body so as to heat the water supplied from the coolant circulation circuit.
  • the heat exchange module may be provided as a plate heat exchanger to increase a heat transfer area when the refrigerant exchanges heat with the water.
  • Each of the heating units may include a water jacket defining a heating space in which the water is introduced to flow and is heated, and a heater panel shielding the heating space of the water jacket from the outside, and coming into direct contact with the water introduced into the heating space so as to heat the water.
  • the heating space may be formed in the form of a groove in an outer surface of the water jacket.
  • a thin heater may be printed on an outer surface of the heater panel.
  • the heater panel may be coupled with a heat insulation panel shielding the thin heater.
  • the heater panel may be formed with a water inlet port through which the water is introduced from the coolant circulation circuit.
  • the heater panel may be made of a material having thermal conductivity higher than that of the water jacket.
  • the refrigerant accommodation body may be provided, at an upper portion thereof, with a refrigerant inlet port through which the refrigerant is introduced, a refrigerant outlet port through which the refrigerant is discharged, and a water outlet port through which the heat-exchanged water is discharged from the refrigerant accommodation body, these ports protruding upward, and the water jacket may have a plurality of through-holes formed at respective positions corresponding to the refrigerant inlet port, the refrigerant outlet port, and the water outlet port, these ports passing through the through-holes.
  • the upper portion of the refrigerant accommodation body may be formed with a body inlet communicating with the inner space so that the water is introduced from the water jacket through the body inlet.
  • the refrigerant inlet port and the refrigerant outlet port may be disposed to face each other in one diagonal direction, and the body inlet and the water outlet port may be disposed to face each other in the other diagonal direction, on an upper surface of the refrigerant accommodation body.
  • the water jacket may have a water inlet port formed to protrude upward and communicate with the heating space, so that the water is introduced from the coolant circulation circuit through the water inlet port, and when the upper portion of the refrigerant accommodation body has a rectangular shape, the body inlet and the water inlet port may be diagonally disposed to face each other.
  • a heat insulation panel may be disposed on an upper surface of the heater panel so as to cover the thin heater.
  • a plurality of cold-storage type plate heat exchangers may be sequentially and horizontally provided in the inner space of the refrigerant accommodation body, and the heater panel may be detachably disposed at one of the cold-storage type plate heat exchangers so as to be replaceable.
  • a plurality of cold-storage type plate heat exchangers may be sequentially and vertically provided in the inner space of the refrigerant accommodation body, and the heater panel may be detachably disposed at one of the cold-storage type plate heat exchangers so as to be replaceable.
  • FIG. 1 is a schematic diagram illustrating a battery pack thermal management system for an electric vehicle according to the related art
  • FIG. 2 is a perspective view illustrating a battery pack thermal management system for an electric vehicle according to an embodiment of the present invention
  • FIG. 3 is a perspective view illustrating the installed state of heater panels of heating units, among the components of FIG. 2;
  • FIG. 4 is an exploded perspective view of FIG. 2;
  • FIG. 5 is an exploded perspective view illustrating a water jacket, among the components of FIG. 2;
  • FIG. 6 is a cross-sectional view illustrating a water flow in the battery pack thermal management system for an electric vehicle according to the embodiment of the present invention
  • FIG. 7 is a perspective view illustrating a battery pack thermal management system for an electric vehicle according to another embodiment of the present invention.
  • FIG. 8 is a schematic diagram illustrating the battery pack thermal management system for an electric vehicle according to the embodiment of the present invention.
  • FIG. 2 is a perspective view illustrating a battery pack thermal management system for an electric vehicle according to an embodiment of the present invention.
  • FIG. 3 is a perspective view illustrating the installed state of heater panels of heating units, among the components of FIG. 2.
  • FIG. 4 is an exploded perspective view of FIG. 2.
  • FIG. 5 is an exploded perspective view illustrating a water jacket, among the components of FIG. 2.
  • FIG. 6 is a cross-sectional view illustrating a water flow in the battery pack thermal management system for an electric vehicle according to the embodiment of the present invention.
  • FIG. 7 is a perspective view illustrating a battery pack thermal management system for an electric vehicle according to another embodiment of the present invention.
  • FIG. 8 is a schematic diagram illustrating the battery pack thermal management system for an electric vehicle according to the embodiment of the present invention.
  • the battery pack thermal management system for an electric vehicle includes a refrigerant cycle circuit in which refrigerant is circulated through a compressor 201, a condenser 202, an expander 203, and an evaporator 204, a coolant circulation circuit in which water is circulated through a battery pack 210 by a circulation pump 208, and a heat exchange module 100 which is disposed so as to share portions of the refrigerant cycle circuit and the coolant circulation circuit, so as to exchange heat between refrigerant branched from the refrigerant cycle circuit and water to cool the battery pack 210 using the cooled water, or so as to electrically heat water and then heat the battery pack 210 using the heated water.
  • the refrigerant cycle circuit includes the compressor 210 which compresses refrigerant, the condenser 202 which condenses the compressed refrigerant, the expander 203 which expands the condensed refrigerant, and the evaporator 204 which evaporates the refrigerant expanded by the expander 203, as illustrated in FIG. 8.
  • the refrigerant is sequentially circulated through the compressor 201, the condenser 202, the expander 203, and the evaporator 204, and exchanges heat with the water circulating in the coolant circulation circuit in one of the condenser 202 and the evaporator 204 which serve as heat exchangers.
  • the refrigerant cycle circuit includes a compressor-condenser connection pipe 205a which connects the compressor 201 to the condenser 202, a condenser-expander connection pipe 205b which connects the condenser 202 to the expander 203, an expander-evaporator connection pipe 205c which connects the expander 203 to the evaporator 204, and an evaporator-compressor connection pipe 205d which connects the evaporator 204 to the compressor 201.
  • the refrigerant cycle circuit may include a chiller connection pipe 206 through which refrigerant is introduced into and discharged from the heat exchange module 100.
  • the chiller connection pipe 206 is connected to a refrigerant inlet port through which refrigerant is introduced into a refrigerant accommodation body 110, and is connected to a refrigerant outlet port 113 through which refrigerant is discharged from the refrigerant accommodation body 110.
  • the coolant circulation circuit includes a circulation pump 208 which pumps water, and a low-temperature radiator 209 which exchanges heat between the water pumped by the circulation pump 208 and the battery pack 201 so as to cool the heated water.
  • the coolant circulation circuit may include a main water circulation pipe 212a which is connected to the circulation pump 208, the heat exchange module 100, and the battery pack 210 such that water is circulated therethrough, and a sub water circulation pipe 212b which is connected such that the water branched from the main water circulation pipe 212a passes through the low-temperature radiator 209 and then flows back into the main water circulation pipe 212a.
  • the refrigerant cycle circuit and the circulation pump 208 are operated, the refrigerant compressed by the compressor 201 is condensed while passing through the condenser 202, the condensed refrigerant immediately flows into the heat exchange module 100 to cool the water flowing in the coolant circulation circuit, and the cooled water flows to cool the battery pack 210.
  • the refrigerant cycle circuit is stopped, and the heating units of the heat exchange module 100, which will be described later, are operated by driving only the circulation pump 208.
  • the water flowing in the coolant circulation circuit is heated by the heating units while passing through the heat exchange module 100, and the heated water flows into the battery pack 210 to preheat the battery pack 210.
  • the configuration of the heat exchange module 100 for cooling and heating the water flowing in the coolant circulation circuit will be described in detail.
  • the heat exchange module 100 may include a refrigerant accommodation body 110 which has an inner space 115 defined such that refrigerant is introduced into and accommodated in the inner space 115 and is then discharged therefrom, and which is arranged such that water flows in the inner space 115 through a heat exchange pipe, and a plurality of heating units which are detachably arranged to match at least one of one outer surface and the other surface of the refrigerant accommodation body 110 so as to heat water before the water is introduced into the inner space 115.
  • FIGS. 2 to 6 illustrate an example in which the heating units are detachably arranged so as to make surface matching with the upper surface of the refrigerant accommodation body 110.
  • the example illustrated in FIGS. 2 to 6 will be described as the preferred embodiment of the present invention, unless otherwise described.
  • the heating units are components which electrically generate heat, and are detachably provided on the upper surface of the refrigerant accommodation body 110.
  • each of the heating units may include a water jacket 120 which defines a heating space 121 in which water is introduced to flow and is heated, and a heater panel 125 which shields the upper portion of the water jacket 120 and comes into direct contact with the water introduced into the heating space 121 so as to heat the water.
  • the heating space 121 is formed in the form of a groove in the upper surface of the water jacket 120, and is open at the upper portion thereof.
  • the heater panel 125 is disposed to shield the heating space, and may come into direct contact with the water flowing in the heating space 121.
  • a rectangular seating part 127 has a groove shape and is provided on the upper surface of the heater panel 125, and a thin heater 130, which generates heat when electric power is supplied thereto, may be printed on the seating part 127.
  • the heater panel 125 on which the thin heater 130 having a small volume is printed, is provided as a component for heating water, it is possible to significantly reduce the weight of the battery pack 210 for the electric vehicle and to increase the degree of freedom of design of peripheral parts owing to the reduction of volume.
  • the heater panel 125 is formed with a water inlet port 126 through which water is introduced from the coolant circulation circuit.
  • a body communication port 122 is formed to be open upward and downward in one side of the bottom of the heating space 121, so that the water introduced into the water jacket 120 through the water inlet port 126 flows and is introduced into the inner space 115 of the refrigerant accommodation body 110 through the body communication port 122.
  • the upper portion of the refrigerant accommodation body 110 may be formed with a refrigerant inlet port 112 through which refrigerant is introduced, a refrigerant outlet port 113 through which refrigerant is discharged, and a water outlet port 111 through which the heat-exchanged water is discharged from the refrigerant accommodation body 110, and these ports protrude upward.
  • the refrigerant accommodation body 110 has a rectangular parallelepiped shape (i.e. when the upper portion of the refrigerant accommodation body 110 has a rectangular shape), among many ports provided in the upper portion of the refrigerant accommodation body 110, the refrigerant inlet port 112 and the refrigerant outlet port 113 are respectively disposed at the diagonal corners of the refrigerant accommodation body 110.
  • the water outlet port 111 and a body inlet 114 which is formed in the refrigerant accommodation body 110 to communicate with the body communication port 122, are respectively disposed, at the diagonal corners of the refrigerant accommodation body 110 at which the refrigerant inlet port 112 and the refrigerant outlet port 113 are not located, so as to face each other.
  • the water inlet port 126 may be disposed at the heater panel 125 adjacent to the water outlet port 111.
  • the refrigerant inlet port 112 the refrigerant outlet port 113, the water outlet port 111, and the body inlet 114 which are directly formed in the upper portion of the refrigerant accommodation body 110
  • the refrigerant inlet port 112, the refrigerant outlet port 113, and the water outlet port 111 are provided to protrude upward
  • the body inlet 114 is preferably formed in the form of a hole so as to communicate with the inner portion of the refrigerant accommodation body 110, as will be seen from the name thereof.
  • the water jacket 120 is provided to be removed from the upper portion of the refrigerant accommodation body 110, if necessary, depending on the user’s selection or the vehicle to which it is applied.
  • the water jacket 120 may have a plurality of through-holes 123a to 123c formed at respective positions corresponding to the refrigerant inlet port 112, the refrigerant outlet port 113, and the water outlet port 111, which protrude from the upper portion of the refrigerant accommodation body 110, and these ports pass through the through-holes 123a to 123c.
  • the water inlet port 126 is removed due to the removal of the water jacket 120.
  • an additional detachable component similar to the water inlet port 126 may be coupled to the existing body inlet 114.
  • the heater panel 125 is preferably made of a material having sufficiently high thermal conductivity to heat water by direct contact between the heat generated by the thin heater 130 and the water flowing into the heating space 121 in the water jacket 120.
  • the heater panel 125 may be at least made of a material having thermal conductivity higher than that of the water jacket 120, in order to improve heating performance.
  • the heating unit may further include a heat insulation panel 140 which shields the upper surface of the thin heater 130 to prevent such heat loss.
  • the heat insulation panel 140 is preferably made of a material having heat resistance so as not to undergo heat strain due to the heat of the thin heater 130. More preferably, the heat insulation panel 140 is made of a material having low thermal conductivity in order to prevent the heat strain of the components provided at the upper side of the heater panel 125.
  • At least one heating unit may be detachably disposed in an inner space 115 of a heat exchange module 100, as illustrated in FIG. 7(a).
  • a plurality of cold-storage type plate heat exchangers 150 may be provided in the inner space 115 of a refrigerant accommodation body 110 constituting the heat exchange module 100.
  • a heater panel 125 constituting the heating unit may be detachably disposed at one of the cold-storage type plate heat exchangers 150, which are horizontally arranged in the inner space 115 of the refrigerant accommodation body 110, so as to be replaceable.
  • the structure of pipes for the supply of water introduced into the heater panel 125 may be designed in various manners, but the specific description of connection thereof in the refrigerant accommodation body 110 will be omitted.
  • a plurality of cold-storage type plate heat exchangers 150 may be sequentially and vertically stacked in an inner space 115 of a refrigerant accommodation body 110, and a heater panel may be detachably disposed at one of the cold-storage type plate heat exchangers 150 so as to be replaceable, as illustrated in FIG. 7(b).
  • the battery pack thermal management system of an electric vehicle since the water jacket 120 is provided so as to be detachable from the refrigerant accommodation body 110, the water jacket 120 is removed and functions as only a chiller-type heat exchanger in the conventional vehicle which is provided with separate heating units.
  • the battery pack thermal management system of the present invention can have improved versatility since the heat exchange module 100, which is formed by integrating the chiller-type heat exchanger and the heating units, is applied without change.
  • a battery pack thermal management system for an electric vehicle can have the following various effects.
  • chiller-type heat exchanger and the heating units are integrally manufactured, it is possible to achieve miniaturization and increase the degree of freedom of design of peripheral parts.
  • the battery pack thermal management system of the present invention is usable as it is for the conventional thermal management system having a separate heating unit when only a water jacket of each heating unit is removed, it is possible to improve versatility.

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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)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Battery Mounting, Suspending (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Secondary Cells (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
PCT/KR2016/006066 2015-06-09 2016-06-08 Battery pack thermal management system for electric vehicle WO2016200144A1 (en)

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KR1020150081052A KR101798144B1 (ko) 2015-06-09 2015-06-09 전기자동차의 배터리 팩 열관리 장치 및 열교환 모듈

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CN108023143A (zh) * 2018-01-15 2018-05-11 无锡英捷汽车科技有限公司 一种纯电动汽车电池热交换器集成模块结构
CN108417926A (zh) * 2017-02-09 2018-08-17 浙江三花汽车零部件有限公司 动力电池组件及电动汽车
CN108638822A (zh) * 2018-06-28 2018-10-12 东风汽车集团有限公司 一种具有电池热管理系统的电动汽车机舱布置结构
CN109638383A (zh) * 2018-12-17 2019-04-16 博耐尔汽车电气系统有限公司 一种电池热交换器集成模块及其热交换方法
CN109830779A (zh) * 2019-02-25 2019-05-31 吉林大学 一种实现电池单体均衡冷却或加热的电池热管理系统
CN110398089A (zh) * 2019-08-19 2019-11-01 豫新汽车热管理科技有限公司 一种冷热一体式板式换热器
CN111384469A (zh) * 2018-12-30 2020-07-07 浙江吉智新能源汽车科技有限公司 一种电池包热管理系统及车辆
FR3102550A1 (fr) * 2019-10-29 2021-04-30 Valeo Systemes Thermiques Échangeur de chaleur à plaques comprenant un élément électrique chauffant
US20220080858A1 (en) * 2018-12-21 2022-03-17 Byd Company Limited Vehicle and power battery heating apparatus and method therefor
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KR102562747B1 (ko) * 2018-12-04 2023-08-02 한온시스템 주식회사 열 교환기
EP3666570B1 (en) * 2018-12-10 2021-10-13 Ningbo Geely Automobile Research & Development Co. Ltd. Battery thermal management system for a vehicle
KR102244963B1 (ko) * 2018-12-18 2021-04-27 주식회사 디에이치지 전기 자동차용 배터리에서 발생하는 열을 재활용하기 위한 열관리 장치
KR102617031B1 (ko) * 2019-08-13 2023-12-26 한온시스템 주식회사 차량의 열관리 시스템
JP7339065B2 (ja) * 2019-08-21 2023-09-05 マツダ株式会社 車両用バッテリパック
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KR102567817B1 (ko) 2021-05-27 2023-08-17 주식회사 디에이치지 전기자동차용 배터리의 효율성 향상을 위한 듀얼 플로우 열관리 장치
KR20230011578A (ko) * 2021-07-14 2023-01-25 한온시스템 주식회사 통합 쿨링 모듈
FR3129715B1 (fr) * 2021-11-30 2024-01-05 Valeo Systemes Thermiques Systeme de gestion thermique

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CN108417926B (zh) * 2017-02-09 2020-12-01 浙江三花汽车零部件有限公司 动力电池组件及电动汽车
CN108417926A (zh) * 2017-02-09 2018-08-17 浙江三花汽车零部件有限公司 动力电池组件及电动汽车
CN106876823A (zh) * 2017-03-15 2017-06-20 苏州安靠电源有限公司 喷淋式制热制冷一体化安全电池包
CN108023143A (zh) * 2018-01-15 2018-05-11 无锡英捷汽车科技有限公司 一种纯电动汽车电池热交换器集成模块结构
CN108638822A (zh) * 2018-06-28 2018-10-12 东风汽车集团有限公司 一种具有电池热管理系统的电动汽车机舱布置结构
CN108638822B (zh) * 2018-06-28 2020-04-03 东风汽车集团有限公司 一种具有电池热管理系统的电动汽车机舱布置结构
CN109638383A (zh) * 2018-12-17 2019-04-16 博耐尔汽车电气系统有限公司 一种电池热交换器集成模块及其热交换方法
US20220080858A1 (en) * 2018-12-21 2022-03-17 Byd Company Limited Vehicle and power battery heating apparatus and method therefor
CN111384469A (zh) * 2018-12-30 2020-07-07 浙江吉智新能源汽车科技有限公司 一种电池包热管理系统及车辆
CN109830779A (zh) * 2019-02-25 2019-05-31 吉林大学 一种实现电池单体均衡冷却或加热的电池热管理系统
CN110398089A (zh) * 2019-08-19 2019-11-01 豫新汽车热管理科技有限公司 一种冷热一体式板式换热器
FR3102550A1 (fr) * 2019-10-29 2021-04-30 Valeo Systemes Thermiques Échangeur de chaleur à plaques comprenant un élément électrique chauffant
FR3139192A1 (fr) * 2022-08-29 2024-03-01 Valeo Systemes Thermiques Echangeur thermique et installation de gestion thermique correspondante
WO2024046875A1 (fr) * 2022-08-29 2024-03-07 Valeo Systemes Thermiques Echangeur thermique et installation de gestion thermique correspondante

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