KR102371514B1 - A Cooling/Heating Structure composed of cylindrical battery Cells - Google Patents

A Cooling/Heating Structure composed of cylindrical battery Cells Download PDF

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KR102371514B1
KR102371514B1 KR1020190093196A KR20190093196A KR102371514B1 KR 102371514 B1 KR102371514 B1 KR 102371514B1 KR 1020190093196 A KR1020190093196 A KR 1020190093196A KR 20190093196 A KR20190093196 A KR 20190093196A KR 102371514 B1 KR102371514 B1 KR 102371514B1
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cooling
battery pack
battery
cooling water
heating
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KR1020190093196A
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Korean (ko)
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KR20210016128A (en
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양기일
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(주)엠피에스코리아
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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
    • H01M10/656—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
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • 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
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical cells
    • 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
    • H01M10/6569—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
    • H01M10/65—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
    • H01M10/6571—Resistive heaters
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/008—Arrangement or mounting of electrical propulsion units with means for heating the electrical propulsion units
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
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  • Manufacturing & Machinery (AREA)
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  • Power Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

본 발명은 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조에 관한 것으로, 그 구성은 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조는 전기 차량에 전원을 공급하기 위해 6개의 배터리 셀이 상부 케이스 및 하부 케이스의 삽입홈에 각각 삽입되어 스프링과 결속되는 단자홈이 구비된 너트단자를 통해 체결된 다수개의 배터리 셀 모듈을 실장하는 배터리 팩; 상기 배터리 팩을 효율적으로 냉난방을 제공하기 위해 배터리 셀모듈과 배터리 셀 모듈 사이에 냉각수 라인을 내장되어 각각 접촉하여 열교환이 이루어지는 알루미늄 열교환 냉각채널; 상기 배터리 셀의 모듈과 알루미늄 냉각채널의 좌우에 접촉 면적을 최대화하기 위해 각각 부착되는 써멀패드; 알루미늄 냉각채널에 냉각수를 공급하는 것으로 구동모터의 동작에 따라 워터펌프에 의해 냉각수가 강제 순환되도록 동작하는 히트펌프 냉난방 라인; 냉각수 순환유로 전환밸브에 의해 개별 순환이 되도록 구동모터에 의해 가열된 냉각수를 라디에이터를 통해 냉각하고 냉각라인 워터펌프에 의해 강제 순환되도록 동작하는 구동모터 냉각라인; 알루미늄 냉각채널과 연결되는 앞단에서 구비되어 배터리 팩 내부에서 배터리 셀 모듈과 배터리 셀 모듈 사이에 열교환 냉각채널이 각각 설치되고 각 열교환 냉각채널에 시간 동일한 유량의 냉각수가 흐를 수 있도록 유량을 분배하도록 동작하는 매니폴더; 및 구동모터의 구동에 따라 순환유로 전환밸브에 의해 가열된 냉각수를 구동모터 냉각라인에 의해 가열된 냉각수를 냉각하여 냉각라인 워터펌프를 통해 강제 순환이 되도록 하는 라디에이터;을 포함하여 구성되는 것을 특징으로 한다.
이에 따라, 본 발명은 배터리 팩 내부에서 배터리 셀 모듈과 배터리 셀 모듈 사이에 매니폴더가 열교환 냉각채널에 각각 설치되고 각 열교환 냉각채널에 시간 동일한 유량의 냉각수가 흐를 수 있도록 유량을 분배하도록 하고, 3way밸브의 포트를 연결 또는 차단을 통해 히트펌프 냉난방 라인과 배터리 구동을 위한 구동모터 냉각 라인이 분리됨으로써 상호 열전달이 용이한 효과를 제공한다.The present invention relates to a heat exchange heating/cooling structure of a battery pack for an electric vehicle to which a cylindrical cell is applied, and the configuration is a heat exchange cooling/heating structure of a battery pack for an electric vehicle to which a cylindrical cell is applied. and a battery pack for mounting a plurality of battery cell modules respectively inserted into the insertion grooves of the lower case and fastened through nut terminals having terminal grooves coupled to the spring; an aluminum heat exchange cooling channel having a built-in cooling water line between the battery cell module and the battery cell module to efficiently heat and cool the battery pack and to heat exchange by contacting each other; Thermal pads respectively attached to the left and right sides of the battery cell module and the aluminum cooling channel to maximize a contact area; a heat pump heating/cooling line that supplies cooling water to the aluminum cooling channel and operates so that the cooling water is forcibly circulated by the water pump according to the operation of the driving motor; a driving motor cooling line that cools the cooling water heated by the driving motor so as to be individually circulated by the cooling water circulation flow path switching valve through a radiator and is forced to circulate by the cooling line water pump; It is provided at the front end connected to the aluminum cooling channel, and a heat exchange cooling channel is respectively installed between the battery cell module and the battery cell module inside the battery pack, and the flow rate is distributed so that the cooling water of the same flow rate can flow in each heat exchange cooling channel. Manifold; and a radiator that cools the cooling water heated by the circulation flow switching valve according to the driving of the driving motor and the cooling water heated by the driving motor cooling line to force circulation through the cooling line water pump. do.
Accordingly, according to the present invention, a manifold is installed in each heat exchange cooling channel between the battery cell module and the battery cell module inside the battery pack, and the flow rate is distributed so that the cooling water of the same flow rate can flow in each heat exchange cooling channel, 3way By connecting or blocking the port of the valve, the heat pump heating/cooling line and the driving motor cooling line for battery operation are separated, providing an effect of easy mutual heat transfer.

Description

원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조{A Cooling/Heating Structure composed of cylindrical battery Cells}Heat exchange heating and cooling structure of a battery pack for an electric vehicle to which cylindrical cells are applied {A Cooling/Heating Structure composed of cylindrical battery Cells}

본 발명은 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조에 관한 것으로, 보다 구체적으로 원통형 배터리셀을 직렬, 병렬로 연결하여 사용하는 대용량 배터리팩으로 구비되는 셀케이스 구조에서 배터리 셀케이스와 셀케이스 사이에 알루미늄 냉각채널을 구비하고, 배터리셀과 알루미늄 냉각채널이 직접 접촉하여 열교환 시 냉각채널의 통로에 구비된 냉각수가 히트펌프와 구동모터를 동작에 따라 냉각 또는 가열됨으로서 배터리 팩의 열교환이 가능한 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조에 관한 것이다.The present invention relates to a heat exchange heating/cooling structure of a battery pack for an electric vehicle to which a cylindrical cell is applied, and more particularly, a battery cell case and a cell case in a cell case structure provided as a large-capacity battery pack using cylindrical battery cells connected in series and in parallel. An aluminum cooling channel is provided between the battery cells, and when the battery cell and the aluminum cooling channel are in direct contact with each other and heat exchange, the cooling water provided in the cooling channel passage is cooled or heated according to the operation of the heat pump and the drive motor, so that heat exchange of the battery pack is possible. It relates to a heat exchange heating/cooling structure of a battery pack for an electric vehicle to which a cell is applied.

또한, 본 발명은 배터리 팩 내부에서 배터리 셀 모듈과 배터리 셀 모듈 사이에 매니폴더가 열교환 냉각채널에 각각 설치되고 각 열교환 냉각채널에 시간 동일한 유량의 냉각수가 흐를 수 있도록 유량을 분배하도록 하고, 3way밸브의 포트를 연결 또는 차단을 통해 히트펌프 냉난방 라인과 배터리 구동을 위한 구동모터 냉각 라인이 분리됨으로써 상호 열전달이 용이한 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조에 관한 것이다.In addition, in the present invention, a manifold is installed in each heat exchange cooling channel between the battery cell module and the battery cell module inside the battery pack, and the flow rate is distributed so that the cooling water of the same flow rate can flow in each heat exchange cooling channel, and a 3-way valve It relates to a heat-exchange heating/cooling structure of a battery pack for an electric vehicle to which a cylindrical cell that facilitates mutual heat transfer is applied by separating a heat pump heating/cooling line and a driving motor cooling line for battery driving by connecting or blocking the port of

현재 많은 곳에서 전기에너지를 저장하는 장치로 배터리를 사용하고 있으며, 1차 전지와 2차 전지 대부분은 원통형(Cylindrical), 각형(Prismatic), 파우치 (Pouch)의 형태를 가지고 있다. 최근에는 여러 개의 배터리 셀을 직/병렬로 연결하여 태양광, 풍력 등에서 만들어진 전기를 저장하여 사용하는 ESS(Energy Storage System) 등에도 사용되고 있다. Currently, batteries are used as devices for storing electrical energy in many places, and most primary and secondary batteries have cylindrical, prismatic, and pouch shapes. Recently, several battery cells are connected in series/parallel to store electricity generated from solar power, wind power, etc. and used in ESS (Energy Storage System).

한편, 최근 지구온난화와 환경오염에 대한 대안으로 전기차가 떠오르고 있으며, 이에 따라 전기차의 수요가 급등하고 있다. 이에 따라 대용량의 원통형 배터리 셀과 이를 직·병렬로 연결할 수 있는 배터리 팩의 수요도 함께 증가하는 추세이다. Meanwhile, electric vehicles are emerging as an alternative to global warming and environmental pollution in recent years, and the demand for electric vehicles is skyrocketing accordingly. Accordingly, the demand for large-capacity cylindrical battery cells and battery packs that can connect them in series and parallel are also increasing.

또한, 다수의 배터리를 셀 형태로 사용시 발생하는 열 손실에 따른 배터리 성능 저하를 최소화하기 위해 셀 온도를 효율적으로 관리할 수 있는 배터리 팩 디자인의 중요성이 부상하고 있다.In addition, the importance of designing a battery pack capable of efficiently managing cell temperature is increasing in order to minimize battery performance degradation due to heat loss that occurs when a plurality of batteries are used in the form of cells.

일반적으로 다수개의 배터리 셀을 직렬로 연결하면 전압(단위 V, 볼트)이 상승하게 되고, 병렬로 연결하면 전류량(단위, Ah)이 상승하게 된다. 충전시에도 전지가 감당할 수 있는 전압과 전류 범위에서 전기에너지가 전지에 축적되게 되며, 방전시에도 전기에너지가 나가는 양 또는 속도에 따라 사용 가능한 전기에너지의 양이 결정된다. In general, when a plurality of battery cells are connected in series, the voltage (unit V, volt) increases, and when connected in parallel, the amount of current (unit, Ah) increases. Even during charging, electrical energy is stored in the battery within the range of voltage and current that the battery can handle, and the amount or speed of the electrical energy that can be discharged during discharging determines the amount of electrical energy that can be used.

전지 셀을 직/병렬 형태로 연결하는 방법에는 병렬연결인 경우 전지 셀의 양극과 양극, 음극과 음극을 금속과 같은 도전체로 연결하며, 직렬연결인 경우 양극과 음극을 반복적으로 연결한다.In a method of connecting battery cells in series/parallel form, in the case of parallel connection, the positive and negative electrodes and the negative and negative electrodes of the battery cells are connected with a conductor such as a metal, and in the case of series connection, the positive and negative electrodes are repeatedly connected.

현존하는 많은 배터리 팩은 셀은 배터리 셀의 양극과 음극 단자에 니켈 극판을 접촉하여 점(spot)용접을 하여 셀을 직·병렬로 연결하는 방법이 사용되고 있다. 이러한 연결방식을 사용하는 배터리 팩 대부분은 셀 온도 관리를 셀의 양극 음극 단자에 연결된 극판을 공기 혹은 냉각플레이트를 통해 냉각하는 방법을 사용하고 있다.In many existing battery packs, a method is used in which the cells are connected in series and in parallel by spot welding by contacting a nickel electrode plate to the positive and negative terminals of the battery cell. Most of the battery packs using this connection method use a method of cooling the electrode plate connected to the positive and negative terminals of the cell through air or a cooling plate to manage the cell temperature.

하지만 이러한 방법은 셀이 조기 노화, 단자 저항 증가, 셀의 내부저항 증가로 인해 성능이 떨어지게 될 경우, 문제의 셀을 검출 및 교체하기가 어렵기 때문에 교체하지 못할 경우 배터리팩 전체 성능이 저하될 수 있다. However, in this method, if the performance of the cell deteriorates due to premature aging, increased terminal resistance, or increased internal resistance of the cell, it is difficult to detect and replace the problematic cell. there is.

또한, 극판을 통해 간접적으로 냉·난방시, 셀과 유체의 접촉 면적이 낮아지기 때문에 셀의 냉·난방 효율성이 상대적으로 낮다.In addition, when cooling/heating indirectly through the electrode plate, the cell-fluid contact area is lowered, so the cooling/heating efficiency of the cell is relatively low.

이에 본 출원인은 다수의 배터리 팩으로 사용시 발생하는 배터리의 내부 열을 히터펌프를 이용하여 효율적으로 경감할 수 있는 열교환 방식의 냉난방 구조에 대하여 제안하고자 한다.Accordingly, the present applicant intends to propose a heating/cooling structure of a heat exchange method that can efficiently reduce internal heat of a battery generated when using a plurality of battery packs by using a heater pump.

1. 자체 발열 기능 판형 열교환기를 이용한 전기차 냉난방 및 배터리 온도관리 시스템 그리고 그 운용방법(Electric vehicle HVAC and battery temperature management system using the self heating plate heat exchanger and its operating method)(특허등록번호 제10-1367212호)1. Electric vehicle HVAC and battery temperature management system using the self heating plate heat exchanger and its operating method (Patent Registration No. 10-1367212) ) 2. 냉난방 공조시스템과 연계한 전기차 배터리 온도관리 시스템 및 그 운용방법(Electric vehicle battery temperature management system conjunction with the HVAC system and its operating method)(특허등록번호 제10-1436960호)2. Electric vehicle battery temperature management system conjunction with the HVAC system and its operating method (Patent Registration No. 10-1436960)

본 발명은 상기의 문제점을 해결하기 위한 것으로, 원통형 배터리셀을 직렬, 병렬로 연결하여 사용하는 대용량 배터리팩으로 구비되는 셀케이스 구조에서 배터리 셀케이스와 셀케이스 사이에 알루미늄 냉각채널을 구비하고, 배터리셀과 알루미늄 냉각채널이 직접 접촉하여 열교환 시 냉각채널의 통로에 구비된 냉각수가 히트펌프와 구동모터 동작에 따라 냉각 또는 가열됨으로서 배터리 팩의 열교환이 가능한 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조를 제공한다.The present invention is to solve the above problems, and in a cell case structure provided as a large-capacity battery pack using cylindrical battery cells connected in series and in parallel, an aluminum cooling channel is provided between the battery cell case and the cell case, and the battery Heat exchange heating/cooling structure for battery packs for electric vehicles with cylindrical cells that allow heat exchange between the battery pack and the battery pack as the cooling water provided in the cooling channel passage is cooled or heated according to the operation of the heat pump and drive motor during heat exchange through direct contact between the cell and the aluminum cooling channel provides

또한, 본 발명은 배터리 팩 내부에서 배터리 셀 모듈과 배터리 셀 모듈 사이에 매니폴더가 열교환 냉각채널에 각각 설치되고 각 열교환 냉각채널에 시간 동일한 유량의 냉각수가 흐를 수 있도록 유량을 분배하도록 하고, 3way 밸브의 포트를 연결 또는 차단을 통해 히트펌프 냉난방 라인과 배터리 구동을 위한 구동모터 냉각 라인이 분리됨으로써 상호 열전달이 용이한 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조를 제공한다.In addition, in the present invention, a manifold is installed in each heat exchange cooling channel between the battery cell module and the battery cell module inside the battery pack, and the flow rate is distributed so that the cooling water of the same flow time can flow in each heat exchange cooling channel, and a 3-way valve The heat pump heating/cooling line and the driving motor cooling line for battery operation are separated by connecting or blocking the It provides a heat exchange heating/cooling structure for a battery pack for an electric vehicle to which a cylindrical cell is applied.

그러나 본 발명의 목적들은 상기에 언급된 목적으로 제한되지 않으며, 언급되지 않은 또 다른 목적들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

상기의 목적을 달성하기 위해 본 발명의 실시예에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조는 전기 차량에 전원을 공급하기 위해 6개의 배터리 셀이 상부 케이스 및 하부 케이스의 삽입홈에 각각 삽입되어 스프링과 결속되는 단자홈이 구비된 너트단자을 통해 체결된 다수개의 배터리 셀 모듈을 실장하는 배터리 팩; 상기 배터리 팩의 냉난방을 제공하기 위해 배터리 셀 모듈과 배터리 셀 모듈 사이에 냉각수 라인을 내장되어 각각 접촉하여 열교환이 이루어지는 알루미늄 냉각채널; 상기 배터리 셀 모듈과 알루미늄 냉각채널의 좌우에 접촉 면적을 최대화하기 위해 각각 부착되는 써멀패드; 알루미늄 냉각채널에 냉각수가 공급되도록 구동모터의 동작에 따라 워터펌프에 의해 냉각수가 강제 순환되도록 동작하는 히트펌프 냉난방라인; 냉각수 순환유로 전환밸브에 의해 개별 순환이 되도록 구동모터에 의해 가열된 냉각수를 라디에이터를 통해 냉각하고 냉각라인 워터펌프에 의해 강제 순환되도록 동작하는 구동모터 냉각라인; 알루미늄 냉각채널과 연결되는 앞단에 구비되어 배터리 팩 내부에서 배터리 셀 모듈과 배터리 셀 모듈 사이에 알루미늄 냉각채널이 각각 설치되고 각 알루미늄 냉각채널에 동일한 유량의 냉각수가 흐를 수 있도록 유량을 분배하도록 동작하는 매니폴더; 및 구동모터의 구동에 따라 냉각수 순환유로 전환밸브에 의해 가열된 냉각수를 구동모터 냉각라인에 의해 가열된 냉각수를 냉각하여 냉각라인 워터펌프를 통해 강제 순환이 되도록 하는 라디에이터;을 포함하고, 히트펌프 냉난방 장치와 라디에이트를 각각 동작시키는 구동모터와 연동된 3way밸브의 포트 연결 또는 차단을 통해 타 연동된 냉각수 순환유로 전환밸브의 유로를 변경하여 배터리 팩의 냉난방을 제공하는 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조에 있어서, 차량용 배터리 팩의 냉각 모드 구동은 배터리 팩에 실장된 배터리 셀 모듈의 냉각을 위해 히터펌프 냉난방 장치의 히터펌프을 구동하여 배터리 팩 내의 알루미늄 냉각채널 내에 공급된 냉각수가 순환되도록 구동모터의 동작에 따라 워터펌프에 의해 냉각수가 강제 순환되도록 동작되고, 차량용 배터리 팩의 초기 가열모드는 구동모터가 구동되어 구동모터 온도가 적정온도까지 오르기 전에 배터리가 가열된 상태에서 동작되도록 배터리 팩을 둘러싼 PTC히터를 급속 가열하고, 적정 온도 유지를 위해 3way밸브의 제1포트와 제2포트를 연결하고 제3포트를 차단하여 냉각수 순환유로 전환밸브를 냉각수 라인별 개별 순환모드에 설정하고 히트펌프의 구동모드를 가열모드로 전환하여 히트펌프 냉난방 라인을 따라 흐르는 냉각수를 열교환기를 가열하여 열교환을 통해 배터리 팩의 온도가 0℃ 이상이 되도록 제어하고, 구동모터의 구동을 통해 온도가 적정온도까지 상승하면 배터리 팩의 적정 배터리 온도 유지를 위해 3way밸브의 제2포트와 제3포트를 연결하고 제1포트를 차단한 뒤 냉각수 순환유로 전환밸브를 냉각수 라인 순환모드에 위치한 후 히트펌프 냉난방라인과 구동모터 냉각라인을 연결하여 가열된 냉각수를 배터리 팩으로 순환시켜서 배터리 팩의 온도가 0℃ 이상이 되도록 제어하는 것을 특징으로 한다.In order to achieve the above object, in the heat exchange heating/cooling structure of the battery pack for an electric vehicle to which a cylindrical cell is applied according to an embodiment of the present invention, six battery cells are installed in the insertion grooves of the upper case and the lower case to supply power to the electric vehicle, respectively. a battery pack for mounting a plurality of battery cell modules inserted through a nut terminal having a terminal groove that is inserted and coupled with a spring; an aluminum cooling channel having a built-in cooling water line between the battery cell module and the battery cell module to provide cooling and heating of the battery pack and heat exchange by contacting each of them; Thermal pads respectively attached to the left and right sides of the battery cell module and the aluminum cooling channel to maximize a contact area; a heat pump heating/cooling line that operates to forcibly circulate cooling water by a water pump according to the operation of a driving motor so that cooling water is supplied to the aluminum cooling channel; a driving motor cooling line that cools the cooling water heated by the driving motor so as to be individually circulated by the cooling water circulation flow path switching valve through a radiator and is forced to circulate by the cooling line water pump; It is provided at the front end connected to the aluminum cooling channel, and an aluminum cooling channel is installed between the battery cell module and the battery cell module inside the battery pack, and the manifold operates to distribute the flow rate so that the cooling water of the same flow can flow through each aluminum cooling channel. folder; and a radiator that cools the cooling water heated by the cooling water circulation path switching valve according to the driving of the driving motor and the cooling water heated by the driving motor cooling line to force circulation through the cooling line water pump. Battery pack for electric vehicle with cylindrical cell that provides cooling and heating of the battery pack by changing the flow path of the other interlocked cooling water circulation flow switching valve by connecting or blocking the port of the 3-way valve linked with the drive motor that operates the device and the radiator, respectively. In the heat exchange heating/cooling structure of , the cooling mode driving of the vehicle battery pack drives the heater pump of the heater pump air conditioning unit to cool the battery cell module mounted in the battery pack, so that the cooling water supplied in the aluminum cooling channel in the battery pack is circulated. According to the operation of the motor, the coolant is forced to circulate by the water pump, and in the initial heating mode of the vehicle battery pack, the battery pack is operated in a heated state before the driving motor is driven and the driving motor temperature rises to an appropriate temperature. To rapidly heat the surrounding PTC heater and maintain the proper temperature, connect the 1st and 2nd ports of the 3-way valve and block the 3rd port to set the cooling water circulation flow switching valve to individual circulation mode for each cooling water line, and By switching the drive mode to the heating mode, the heat exchanger heats the coolant flowing along the heat pump heating/cooling line to control the temperature of the battery pack to be over 0℃ through heat exchange, and when the temperature rises to an appropriate temperature by driving the drive motor To maintain the proper battery temperature of the battery pack, connect the 2nd port and 3rd port of the 3-way valve, shut off the 1st port, and place the cooling water circulation flow changeover valve in the cooling water line circulation mode to cool the heat pump heating/cooling line and driving motor It is characterized in that by connecting the line to circulate the heated coolant to the battery pack, the temperature of the battery pack is controlled to be 0°C or higher.

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본 발명의 실시예에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조는, 배터리 팩 내부에서 배터리 셀 모듈과 배터리 셀 모듈 사이에 매니폴더가 열교환 냉각채널에 각각 설치되고 각 열교환 냉각채널에 시간 동일한 유량의 냉각수가 흐를 수 있도록 유량을 분배하도록 하고, 3way 밸브의 포트를 연결 또는 차단을 통해 히트펌프 냉난방 라인과 배터리 구동을 위한 구동모터 냉각 라인이 분리됨으로써 상호 열전달이 용이한 효과를 제공한다.In the heat exchange heating/cooling structure of a battery pack for an electric vehicle to which a cylindrical cell is applied according to an embodiment of the present invention, a manifold is installed in a heat exchange cooling channel between a battery cell module and a battery cell module inside the battery pack, and time is applied to each heat exchange cooling channel. The flow rate is distributed so that the cooling water of the same flow can flow, and the heat pump heating/cooling line and the driving motor cooling line for battery operation are separated by connecting or blocking the port of the 3-way valve, thereby providing the effect of easy mutual heat transfer.

또한, 본 발명의 실시예에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조는 극저온에서 사용시 배터리팩 내부의 PTC 히터와 히트펌프를 동시에 가동가능하여 배터리팩을 정상온도까지 급속 가열할 수 있고, 배터리 팩의 충전시 충전 시작 전 충전기의 전류를 사용하여 PTC 히터와 히트펌프를 구동하여 배터리를 정상온도 이상 가열시킨 후 충전이 가능하여 저온충전 배터리 가열이 가능한 효과를 제공한다.In addition, the heat exchange heating/cooling structure of the battery pack for an electric vehicle to which the cylindrical cell is applied according to an embodiment of the present invention enables simultaneous operation of the PTC heater and the heat pump inside the battery pack when used at cryogenic temperatures, so that the battery pack can be rapidly heated to a normal temperature, , when charging the battery pack, the PTC heater and heat pump are driven using the current from the charger before the start of charging to heat the battery to the normal temperature or higher, and then charge the battery, providing the effect of heating the low-temperature charging battery.

또한, 본 발명의 실시예에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조는 배터리 팩의 가열 상태기 히트펌프 냉난방 장치를 가동하지 않아 추가적인 전력소비를 줄여서 전기차량의 주행거리를 향상시킬 수 있고, 구동모터가 구동되어 일정 온도이상 모터 냉각수가 가열되면 배터리 팩의 냉각수 라인으로 가열된 냉각수를 전송되도록 하여 배터리를 가열하고, 구동모터 냉각수를 이용한 배터리 가열시 히트펌프 작동을 정지시켜 배터리 전류사용을 저감시켜 에너지 절약할 수 있다.In addition, the heat exchange heating/cooling structure of the battery pack for an electric vehicle to which the cylindrical cell according to an embodiment of the present invention is applied does not operate the heat pump heating/cooling device in the heating state of the battery pack, thereby reducing additional power consumption and improving the mileage of the electric vehicle. When the driving motor is driven and the motor coolant is heated over a certain temperature, the heated coolant is transferred to the coolant line of the battery pack to heat the battery. can be reduced to save energy.

도 1은 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 셀 모듈의 사시도
도 2는 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 셀 모듈의 분해사시도
도 3은 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구성도
도 4는 도 3에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방을 위한 단면도
도 5는 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 냉각 구동을 위한 상태도
도 6은 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 초기 가열시 동작절차를 도시한 상태도
도 7은 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 가열 상태시 동작절차를 도시한 상태도1 is a perspective view of a battery cell module for an electric vehicle to which a cylindrical cell according to the present invention is applied;
2 is an exploded perspective view of a battery cell module for an electric vehicle to which a cylindrical cell according to the present invention is applied;
3 is a configuration diagram of heat exchange heating and cooling of a battery pack for an electric vehicle to which a cylindrical cell according to the present invention is applied;
4 is a cross-sectional view for heat exchange cooling and heating of the battery pack for an electric vehicle to which the cylindrical cell according to FIG. 3 is applied;
5 is a state diagram for cooling driving of a battery pack for an electric vehicle to which a cylindrical cell according to the present invention is applied;
6 is a state diagram illustrating an operation procedure during initial heating of a battery pack for an electric vehicle to which a cylindrical cell according to the present invention is applied.
7 is a state diagram illustrating an operation procedure in a heating state of a battery pack for an electric vehicle to which a cylindrical cell according to the present invention is applied;

이하, 본 발명의 바람직한 실시예의 상세한 설명은 첨부된 도면들을 참조하여 설명할 것이다. 하기에서 본 발명을 설명함에 있어서, 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략할 것이다.Hereinafter, detailed description of preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

본 발명의 원통형 셀이 적용된 전기 차량용 배터리 셀 모듈의 열교환 냉난방 구조는 크게 상부케이스(110), 하부케이스(120), 너트단자(130), 스프링(140), 냉난방 판넬(150), 부스판(160) 및 배터리 셀(170)로 구성되는데, 첨부된 도 1은 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 셀 모듈의 사시도이고, 도 2는 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 셀 모듈의 분해사시도 나타낸다.The heat exchange heating/cooling structure of the battery cell module for an electric vehicle to which the cylindrical cell of the present invention is applied is largely an upper case 110, a lower case 120, a nut terminal 130, a spring 140, a heating/cooling panel 150, a bus plate ( 160) and a battery cell 170, the attached FIG. 1 is a perspective view of a battery cell module for an electric vehicle to which a cylindrical cell according to the present invention is applied, and FIG. 2 is a battery cell module for an electric vehicle to which a cylindrical cell according to the present invention is applied. An exploded perspective of the is also shown.

첨부된 도 1 내지 도 2를 참조하여 본 발명에 사용되는 원통형 셀이 적용된 전기 차량용 배터리 팩의 세부구조를 살펴보면, 6개의 원통형 배터리 셀(170)이 상부케이스(110) 및 하부케이스(120)의 배터리 삽입홈(도면부호 미도시)에 (+)극과 (-)극이 동일한 방향으로 각각 삽입되어 조립되어 외부에서 부스바 결합시 6개 병렬 구조가 되도록 구성되는데, 상기 상부 케이스(110)는 6P 배터리 셀이 삽입될 수 있도록 배터리 삽입홈이 각각 구성되어 배터리 삽입홈에 원통형 배터리 셀(170)이 각각 삽입되고, 배터리 삽입홈에 각각 삽입된 배터리 셀(170)을 통해 전원을 공급받기 위해 스프링(140)과 결속되는 단자홈이 구비된 너트단자(130)가 구비된다.Looking at the detailed structure of the battery pack for an electric vehicle to which the cylindrical cell used in the present invention is applied with reference to the accompanying FIGS. 1 and 2 , six cylindrical battery cells 170 are formed in the upper case 110 and the lower case 120 . The (+) and (-) poles are respectively inserted into the battery insertion groove (not shown) in the same direction and assembled to form six parallel structures when the busbar is coupled from the outside. Each of the battery insertion grooves is configured so that the 6P battery cells can be inserted, so that the cylindrical battery cells 170 are respectively inserted into the battery insertion grooves, and a spring is supplied to receive power through the battery cells 170 respectively inserted into the battery insertion grooves. A nut terminal 130 having a terminal groove for binding to 140 is provided.

상기 하부 케이스(120)는 상기 상부 케이스(110)와 동일한 형태로 원통형 배터리 셀(170)의 반대편에서 셀의 반대 전극이 삽입되도록 배터리 삽입홈, 스프링(140) 및 너트단자(130)가 구비된다.The lower case 120 is provided with a battery insertion groove, a spring 140 and a nut terminal 130 so that the opposite electrode of the cell is inserted from the opposite side of the cylindrical battery cell 170 in the same shape as the upper case 110 . .

상기 상부 케이스(110) 및 하부 케이스(120)에 6개의 배터리 셀(170)이 스프링(140) 및 너트단자(130)를 통해 결합되어 하나의 배터리 팩 구조를 형성한다.Six battery cells 170 are coupled to the upper case 110 and the lower case 120 through a spring 140 and a nut terminal 130 to form a single battery pack structure.

상기 냉난방 판넬(150)은 배터리 셀의 충전 또는 방전에 따라 발생하는 열이 전도되도록 구성된 것으로서, 상부 케이스(110) 및 하부 케이스(120)를 통해 삽입된 다수개의 직렬 및 병렬로 연결된 배터리 셀의 측면의 일단과 각각 접촉하여 다수개의 상부 및 하부 케이스와 판넬 상부 및 하부에 구비된 케이스 체결홈을 통해 볼트 결합되어 배터리 셀의 충전 또는 방전에 따라 발생하는 열을 써멀패드를 통해 냉각파이프로 열이 전도되도록 동작한다.The heating/cooling panel 150 is configured to conduct heat generated according to charging or discharging of battery cells. Sides of a plurality of battery cells connected in series and in parallel are inserted through the upper case 110 and the lower case 120 . In contact with one end of each, a plurality of upper and lower cases and a plurality of upper and lower cases are bolted through the case fastening grooves provided on the upper and lower parts of the panel, and heat generated according to the charging or discharging of the battery cells is conducted to the cooling pipe through the thermal pad. operate as much as possible.

도 3은 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구성도이고, 도 4는 도 3에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방을 위한 단면도를 나타내는데, 본 발명의 열교환 냉난방 구조는 배터리 팩(100), 히트펌프 냉난방 장치(300), 라디에이트(400), 구동모터(500), 순환유로 전환밸브(600), 워터펌프(700), 3way 밸브(800) 및 냉난방라인(900)으로 구성된다. 이하, 첨부된 도 1 내지 도 4를 참조하여 열교환 냉난방 구조의 세부동작을 살펴보면, 상기 배터리 팩(100)은 전기 차량에 전원을 공급하기 위해 6개의 배터리 셀(170)이 상부 케이스(110) 및 하부 케이스(120)의 삽입홈에 각각 삽입되어 스프링(140)과 결속되는 단자홈이 구비된 너트단자(130)을 통해 체결되어 구비된다.3 is a configuration diagram for heat exchange cooling and heating of a battery pack for an electric vehicle to which the cylindrical cell according to the present invention is applied, and FIG. 4 is a cross-sectional view for heat exchange cooling and heating of the battery pack for an electric vehicle to which the cylindrical cell according to FIG. 3 is applied. The heating/cooling structure consists of a battery pack 100, a heat pump heating/cooling unit 300, a radiator 400, a driving motor 500, a circulation path switching valve 600, a water pump 700, a 3-way valve 800, and heating/cooling. line 900 . Hereinafter, looking at the detailed operation of the heat exchange heating/cooling structure with reference to the accompanying FIGS. 1 to 4 , the battery pack 100 includes six battery cells 170 including the upper case 110 and They are respectively inserted into the insertion grooves of the lower case 120 and are fastened through the nut terminals 130 having terminal grooves for binding with the spring 140 .

상기 배터리 팩(100)을 효율적으로 냉난방을 제공하기 위해 배터리 셀모듈과 배터리 셀 모듈 사이에 냉각수 라인을 내장한 알루미늄 열교환 냉각채널(210)이 구비되어 각각 접촉하여 열교환이 되도록 구성된다. In order to efficiently provide cooling and heating of the battery pack 100, an aluminum heat exchange cooling channel 210 having a coolant line embedded therein is provided between the battery cell module and the battery cell module, and is configured to be in contact with each other to exchange heat.

상기 배터리 셀 모듈(110)과 알루미늄 냉각채널(210)의 접촉면적을 최대화하기 위해 알루미늄 냉각채널(210) 좌우에는 써멀패드가 각각 부착하여 형성된다.In order to maximize the contact area between the battery cell module 110 and the aluminum cooling channel 210, thermal pads are attached to the left and right sides of the aluminum cooling channel 210, respectively.

한편, 히트펌프 냉난방 라인(910)은 알루미늄 냉각채널(210)에 냉각수를 공급하는 것으로 구동모터(500)의 동작에 따라 워터펌프(750)에 의해 냉각수가 강제 순환되도록 동작하고, 구동모터 냉각라인(920)은 냉각수 순환유로 전환밸브(600)에 의해 개별 순환이 되도록 구동모터(500)에 의해 가열된 냉각수를 라디에이터(400)를 통해 냉각하고 냉각라인 워터펌프(700)에 의해 강제 순환되도록 동작한다.On the other hand, the heat pump heating/cooling line 910 supplies cooling water to the aluminum cooling channel 210 and operates so that the cooling water is forcibly circulated by the water pump 750 according to the operation of the driving motor 500 , and the driving motor cooling line 920 is operated to cool the coolant heated by the driving motor 500 to be individually circulated by the coolant circulation flow path switching valve 600 through the radiator 400 and forcibly circulate by the cooling line water pump 700 do.

또한, 알루미늄 냉각채널(210)과 연결되는 앞단에 매니폴더(220)가 구비되는데, 이는 알루미늄 냉각채널(210)에 각각 동일한 유량의 냉각수가 흐를 수 있도록 구성되어 있다.In addition, a manifold 220 is provided at the front end connected to the aluminum cooling channel 210 , which is configured to allow the cooling water of the same flow rate to flow through the aluminum cooling channel 210 .

상기 매니폴더(220)는 배터리 팩(100) 내부에서 배터리 셀 모듈(170)과 배터리 셀 모듈 사이에 열교환 냉각채널(210)이 각각 설치되고 각 열교환 냉각채널(210)에 시간 동일한 유량의 냉각수가 흐를 수 있도록 유량을 분배하도록 동작한다.In the manifold 220 , heat exchange cooling channels 210 are respectively installed between the battery cell modules 170 and the battery cell modules in the battery pack 100 , and the cooling water of the same flow rate for a time is provided in each heat exchange cooling channel 210 . It operates to distribute the flow so that it can flow.

상기 라디에이터(400)는 구동모터(500)의 구동에 따라 순환유로 전환밸브(600)에 의해 가열된 냉각수를 구동모터 냉각라인(920)에 의해 가열된 냉각수를 냉각하여 냉각라인 워터펌프(700)를 통해 강제 순환이 되도록 한다.The radiator 400 cools the cooling water heated by the circulation flow path switching valve 600 according to the driving of the driving motor 500 and the cooling water heated by the driving motor cooling line 920 to cool the cooling line water pump 700 . through forced circulation.

한편, 배터리의 냉난방은 히트펌프 냉난방 장치(300)와 구동모터(500) 그리고 PTC히터(230)가 담당하며 3way 밸브(800)와 냉각수 순환유로 전환밸브(600)의 유로를 변경하여 배터리를 효율적으로 냉난방 할 수 있도록 구성된다.On the other hand, heating and cooling of the battery is carried out by the heat pump air conditioning unit 300, the driving motor 500, and the PTC heater 230, and the flow path of the 3-way valve 800 and the cooling water circulation path switching valve 600 is changed to efficiently improve the battery. It is designed for cooling and heating.

본 발명에 따른 열교환 냉난방 구조는 3way밸브(800)의 포트(810,820,830)를 연결 또는 차단을 통해 히트펌프 냉난방 라인(910)과 배터리 구동을 위한 구동모터 냉각 라인(920)이 분리됨으로써 상호 열전달이 가능하도록 구성된다.In the heat exchange heating/cooling structure according to the present invention, the heat pump heating/cooling line 910 and the driving motor cooling line 920 for battery driving are separated by connecting or blocking the ports 810, 820, and 830 of the 3-way valve 800, so that mutual heat transfer is possible. is configured to

첨부된 도 5는 원통형 셀이 적용된 전기 차량용 배터리 팩의 냉각 모드로 구구동을 위한 상태도를 도시한 것으로 그 동작을 살펴보면, 먼저, 차량용 배터리 팩의 냉각 모드 구동은 배터리 팩(100)에 실장된 배터리 셀 모듈(110)의 냉각을 위해 히터펌프 냉난방 장치(300)의 히터펌프(310)을 구동하여 배터리 팩(100) 내의 알루미늄 냉각채널(210) 내에 공급된 냉각수를 순환되도록 구동모터(500)의 동작에 따라 워터펌프(750)에 의해 냉각수가 강제 순환되도록 동작되게 된다.5 is a state diagram for driving in a cooling mode of an electric vehicle battery pack to which a cylindrical cell is applied. Looking at the operation, first, the cooling mode driving of the vehicle battery pack is performed by the battery mounted on the battery pack 100 . In order to cool the cell module 110, the heater pump 310 of the heater pump air conditioning unit 300 is driven to circulate the cooling water supplied in the aluminum cooling channel 210 in the battery pack 100. According to the operation, the water pump 750 is operated to forcibly circulate the cooling water.

보다 세부적으로, 히터펌프 냉난방장치와 결된 3way밸브(800)의 동작을 통해 순환유로 전환밸브(600)를 전환하여 동작하는데, 3way밸브(800)의 제1포트(810)와 제2포트(820)을 연결하고 제3포트(830)을 차단한 뒤 냉각수 순환유로 전환밸브(600)를 냉각수 라인별 개별 순환모드에 두고 히트펌프(310)의 구동 모드를 냉각으로 하고 히트펌프 냉난방 라인(910)을 따라 흐르는 냉각수를 열교환기(320)에서 열교환을 통해 냉각수를 냉각시켜서 배터리 팩(100)의 온도를 제어한다. 이때, 배터리 팩(100)의 온도는 40℃ 이상 오르지 않도록 제어한다.In more detail, the circulation flow path switching valve 600 is switched and operated through the operation of the 3-way valve 800 coupled to the heater pump air conditioning unit, and the first port 810 and the second port 820 of the 3-way valve 800 are operated. ), cut off the third port 830, put the cooling water circulation flow path switching valve 600 in individual circulation mode for each cooling water line, set the driving mode of the heat pump 310 to cooling, and heat pump heating/cooling line 910 The temperature of the battery pack 100 is controlled by cooling the coolant through heat exchange with the coolant flowing along the heat exchanger 320 . At this time, the temperature of the battery pack 100 is controlled not to rise more than 40 ℃.

도 6은 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 초기 가열시 동작절차를 도시한 상태도로서, 배터리 팩의 초기 가열모드는 상기 구동모터(500)가 구동되어 모터 온도가 적정온도까지 오르기 전에 배터리가 가열된 상태에서의 동작하는 모드로서, 극저온(-20℃ 이하)에서의 급속 가열은 PTC히터(230)를 사용하고 이후 적정 온도 유지를 위해 3way밸브(800)의 제1포트(810)와 제2포트(820)을 연결하고 제3포트(830)을 차단한 뒤 냉각수 순환유로 전환밸브(600)를 냉각수 라인별 개별 순환모드에 두고 히트펌프(310)의 구동모드를 가열모드로 하고 히트펌프 냉난방 라인(910)을 따라 흐르는 냉각수를 열교환기(320)의 열교환을 통해 가열시켜서 배터리 팩(100)의 온도가 0℃ 이상이 되도록 제어한다. 6 is a state diagram illustrating an operation procedure during initial heating of the battery pack for an electric vehicle to which the cylindrical cell according to the present invention is applied. In the initial heating mode of the battery pack, the driving motor 500 is driven to raise the motor temperature to an appropriate temperature. As a mode of operation in a state in which the battery is heated before, rapid heating at cryogenic temperature (-20 ℃ or less) uses the PTC heater 230 and then the first port 810 of the 3-way valve 800 to maintain an appropriate temperature. ) and the second port 820, block the third port 830, put the cooling water circulation flow path switching valve 600 in individual circulation mode for each cooling water line, and change the driving mode of the heat pump 310 to the heating mode. and the cooling water flowing along the heat pump heating/cooling line 910 is heated through heat exchange of the heat exchanger 320 to control the temperature of the battery pack 100 to be 0° C. or higher.

따라서, 본 발명의 열교환 냉난방 구조는 상기와 같이 극저온에서 사용시 배터리팩 내부의 PTC 히터(230)와 히트펌프(310)가 동시에 가동되어 배터리팩을 정상온도까지 급속 가열할 수 있고, 배터리 팩(100)의 충전시 충전 시작 전 충전기의 전류를 사용하여 PTC 히터(230)와 히트펌프(310)를 구동하여 배터리를 정상온도 이상 가열시킨 후 충전이 가능하여 저온충전 배터리 가열 구조 및 배터리 가열 구조를 제공한다.Therefore, in the heat exchange heating/cooling structure of the present invention, when used at a cryogenic temperature as described above, the PTC heater 230 and the heat pump 310 inside the battery pack are simultaneously operated to rapidly heat the battery pack to a normal temperature, and the battery pack 100 ), the PTC heater 230 and the heat pump 310 are used to drive the PTC heater 230 and the heat pump 310 before the start of charging to heat the battery above the normal temperature and then charge it, providing a low-temperature charging battery heating structure and a battery heating structure do.

이때, 3way 밸브(800)는 배터리 냉난방을 위한 히트펌프 순환라인과 통합순환 라인의 냉각수 순환 유로를 변경하여 동작한다.At this time, the 3-way valve 800 operates by changing the cooling water circulation path of the heat pump circulation line and the integrated circulation line for cooling and heating the battery.

도 7은 본 발명에 따른 원통형 셀이 적용된 전기 차량용 배터리 팩의 가열 상태시 동작절차를 도시한 상태도로서, 상기 도 6의 절차에 따라 구동모터(500)의 구동에 따라 배터리 적정온도로 가열된 상태에서 동작하는 모드로서, 상기 구동모터(500)가 구동되어 모터 온도가 적정온도까지 상승한 뒤 상기 배터리 팩(100)의 배터리 셀(110)를 가열하게 되는데, 이때, 적정 배터리 운용 온도 유지를 위해 3way밸브(800)의 제2포트(820)와 제3포트(830)를 연결하고 제1포트(810)을 차단한 뒤 냉각수 순환유로 전환밸브(600)를 냉각수 라인 순환모드에 위치한 후 히트펌프 냉난방 라인(910)과 구동모터 냉각라인(920)을 연결하여 구동모터(500)의 구동에 따라 발열하여 가열된 냉각수를 배터리 팩(100)으로 순환시켜서 배터리 팩(100)의 온도가 0℃ 이상이 되도록 제어한다. 7 is a state diagram illustrating an operation procedure when a battery pack for an electric vehicle to which a cylindrical cell according to the present invention is applied is heated. As a mode of operation in , the driving motor 500 is driven and the motor temperature rises to an appropriate temperature to heat the battery cells 110 of the battery pack 100. At this time, in order to maintain an appropriate battery operating temperature, 3way After connecting the second port 820 and the third port 830 of the valve 800 and blocking the first port 810, the cooling water circulation flow path switching valve 600 is placed in the cooling water line circulation mode, and then the heat pump is heated and cooled. The line 910 and the driving motor cooling line 920 are connected to circulate the coolant heated by heating according to the driving of the driving motor 500 to the battery pack 100 so that the temperature of the battery pack 100 is 0° C. or higher. control as much as possible.

이때, 상기 배터리 팩의 가열 상태는 히트펌프 냉난방 장치(200)를 가동하지 않아 추가적인 전력소비를 줄여서 전기차량의 주행거리를 향상시킬 수 있고, 구동모터가 구동되어 일정 온도이상 모터 냉각수가 가열되면 배터리 팩의 냉각수 라인으로 가열된 냉각수를 내보내어 배터리를 가열하고, 구동모터 냉각수를 이용한 배터리 가열시 히트펌프 작동을 정지시켜 배터리 전류사용을 저감시켜 에너지 절약 할 수 있다.At this time, the heating state of the battery pack does not operate the heat pump air conditioning unit 200, so it is possible to reduce additional power consumption to improve the mileage of the electric vehicle. The battery is heated by sending the heated coolant to the cooling water line of the pack, and when the battery is heated using the driving motor coolant, the heat pump stops the operation to reduce battery current consumption and save energy.

한편, 상기 배터리 셀(170)과 알루미늄 냉각채널(210)의 접촉면적을 최대화하기 위해 알루미늄 냉각채널(210) 좌우에는 써멀패드를 부착하고 있다.Meanwhile, in order to maximize the contact area between the battery cell 170 and the aluminum cooling channel 210 , thermal pads are attached to the left and right sides of the aluminum cooling channel 210 .

상기 써멀패드는 실리콘 소재로 하나의 판넬로 형성된 냉난방 판넬(150)의 좌우 측면에서 배터리 셀(170)과 직접 접촉된다.The thermal pad is in direct contact with the battery cell 170 on the left and right sides of the heating/cooling panel 150 formed of a single panel made of a silicon material.

보다 세부적으로 상기 냉각 파이프(520)는 다수개의 직렬과 병렬로 연결된 리튬 전지셀의 온도가 균일하게 유지될 수 있도록 각각의 리튬 전지셀의 옆면에 유로가 형성된 알루미늄 또는 구리 소재로 안쪽이 비어있어 물 또는 냉매가 흐를 수 있는 구조를 가지고, 상기 서멀패드는 냉각파이프와 접촉되어 구성되는데, 써멀패드(Thermal Pad)는 실리콘 또는 카본 소재로 배터리 셀의 리튬전지의 외부가 금속 니켈소재이고, 냉각파이프의 소재가 알루미늄 또는 구리소재이므로 접촉에 의한 열전달이 용이하도록 완충이 가능하면서 열전도도가 높고, 전기전도도는 없는 소재가 사용된다.In more detail, the cooling pipe 520 is made of aluminum or copper material in which a flow path is formed on the side surface of each lithium battery cell so that the temperature of a plurality of lithium battery cells connected in series and in parallel can be uniformly maintained. Alternatively, it has a structure through which a refrigerant can flow, and the thermal pad is configured in contact with a cooling pipe. The thermal pad is a silicon or carbon material, and the outside of the lithium battery of the battery cell is a metallic nickel material, and the cooling pipe Since the material is aluminum or copper, a material with high thermal conductivity and no electrical conductivity is used that can be buffered to facilitate heat transfer by contact.

즉, 상기 냉난방 판넬(150)은 중심부에 물과 같은 유체가 흐를수 있는 원형 파이프 구조를 가지고 상부와 하부에 사각 공백의 냉각 파이프가 구비되고, 냉각 파이프의 양쪽에는 실리콘 소재의 써멀패드가 부착되어 있어 원통형 배터리 셀(170)과 냉각파이프 사이의 접촉을 통하여 열을 전달해주는 통로가 되는데, 써멀패드는 쿠션을 가지고 수축과 팽창이 가능한 소재가 구비되어 열전달 기능이 우수하면서도 전기적으로는 절연의 특성의 소재로 구비된다.That is, the cooling and heating panel 150 has a circular pipe structure in which a fluid such as water can flow in the center, and a cooling pipe with a square blank is provided at the top and bottom, and a silicon thermal pad is attached to both sides of the cooling pipe. It becomes a passage for transferring heat through the contact between the cylindrical battery cell 170 and the cooling pipe, and the thermal pad has a cushion and is provided with a material that can contract and expand, so it has excellent heat transfer function and is electrically insulating. material is provided.

100 : 배터리 팩
110 : 상부케이스 120 : 하부케이스
130 : 너트단자 140 : 스프링
150 : 냉난방 판넬 160 : 부스판
170 : 배터리 셀 모듈
210 : 알루미늄 냉각채널 220 : 매니폴더
230 : PTC히터 300 : 히트펌프 냉난방 시스템
310 : 히트펌프 320 : 열교환기
400 : 라디에이터 500 : 구동모터
600 : 냉각수 순환유로 전환밸브
700 : 구동모터 냉각라인 워터펌프
750 : 히트펌프 냉난방라인 워터펌프
800 : 3way 밸브 810 : 제 1 포트
820 : 제 2 포트 830 : 제 3 포트
910 : 히트펌프 냉난방라인
920 : 구동모터 냉각라인100: battery pack
110: upper case 120: lower case
130: nut terminal 140: spring
150: heating and cooling panel 160: booth panel
170: battery cell module
210: aluminum cooling channel 220: manifold
230: PTC heater 300: heat pump heating and cooling system
310: heat pump 320: heat exchanger
400: radiator 500: drive motor
600: cooling water circulation flow path switching valve
700: drive motor cooling line water pump
750: heat pump heating/cooling line water pump
800: 3-way valve 810: 1st port
820: second port 830: third port
910: heat pump heating and cooling line
920: drive motor cooling line

Claims (5)

전기 차량에 전원을 공급하기 위해 6개의 배터리 셀이 상부 케이스(110) 및 하부 케이스(120)의 삽입홈에 각각 삽입되어 스프링(140)과 결속되는 단자홈이 구비된 너트단자(130)을 통해 체결된 다수개의 배터리 셀 모듈(170)을 실장하는 배터리 팩(100); 상기 배터리 팩(100)의 냉난방을 제공하기 위해 배터리 셀 모듈과 배터리 셀 모듈 사이에 냉각수 라인을 내장되어 각각 접촉하여 열교환이 이루어지는 알루미늄 냉각채널(210); 상기 배터리 셀 모듈과 알루미늄 냉각채널(210)의 좌우에 접촉 면적을 최대화하기 위해 각각 부착되는 써멀패드; 알루미늄 냉각채널(210)에 냉각수가 공급되도록 구동모터(500)의 동작에 따라 워터펌프(750)에 의해 냉각수가 강제 순환되도록 동작하는 히트펌프 냉난방라인(910); 냉각수 순환유로 전환밸브(600)에 의해 개별 순환이 되도록 구동모터(500)에 의해 가열된 냉각수를 라디에이터(400)를 통해 냉각하고 냉각라인 워터펌프(700)에 의해 강제 순환되도록 동작하는 구동모터 냉각라인(920); 알루미늄 냉각채널(210)과 연결되는 앞단에 구비되어 배터리 팩(100) 내부에서 배터리 셀 모듈(170)과 배터리 셀 모듈 사이에 알루미늄 냉각채널(210)이 각각 설치되고 각 알루미늄 냉각채널(210)에 동일한 유량의 냉각수가 흐를 수 있도록 유량을 분배하도록 동작하는 매니폴더(220); 및 구동모터(500)의 구동에 따라 냉각수 순환유로 전환밸브(600)에 의해 가열된 냉각수를 구동모터 냉각라인(920)에 의해 가열된 냉각수를 냉각하여 냉각라인 워터펌프(700)를 통해 강제 순환이 되도록 하는 라디에이터(400);을 포함하고, 히트펌프 냉난방 장치(300)와 라디에이트(400)을 각각 동작시키는 구동모터(500)와 연동된 3way밸브(800)의 포트(810,820,830) 연결 또는 차단을 통해 타 연동된 냉각수 순환유로 전환밸브(600)의 유로를 변경하여 배터리 팩의 냉난방을 제공하는 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조에 있어서,
차량용 배터리 팩의 냉각 모드 구동은
배터리 팩(100)에 실장된 배터리 셀 모듈(170)의 냉각을 위해 히터펌프 냉난방 장치(300)의 히터펌프(310)을 구동하여 배터리 팩(100) 내의 알루미늄 냉각채널(210) 내에 공급된 냉각수가 순환되도록 구동모터(500)의 동작에 따라 워터펌프(750)에 의해 냉각수가 강제 순환되도록 동작되고,
차량용 배터리 팩의 초기 가열모드는
구동모터(500)가 구동되어 구동모터 온도가 적정온도까지 오르기 전에 배터리가 가열된 상태에서 동작되도록 배터리 팩(100)을 둘러싼 PTC히터(230)를 급속 가열하고, 적정 온도 유지를 위해 3way밸브(800)의 제1포트(810)와 제2포트(820)을 연결하고 제3포트(830)을 차단하여 냉각수 순환유로 전환밸브(600)를 냉각수 라인별 개별 순환모드에 설정하고 히트펌프(310)의 구동모드를 가열모드로 전환하여 히트펌프 냉난방 라인(910)을 따라 흐르는 냉각수를 열교환기(320)를 가열하여 열교환을 통해 배터리 팩(100)의 온도가 0℃ 이상이 되도록 제어하고, 구동모터(500)의 구동을 통해 온도가 적정온도까지 상승하면 배터리 팩(100)의 적정 배터리 온도 유지를 위해 3way밸브(800)의 제2포트(820)와 제3포트(830)를 연결하고 제1포트(810)을 차단한 뒤 냉각수 순환유로 전환밸브(600)를 냉각수 라인 순환모드에 위치한 후 히트펌프 냉난방라인(910)과 구동모터 냉각라인(920)을 연결하여 가열된 냉각수를 배터리 팩(100)으로 순환시켜서 배터리 팩(100)의 온도가 0℃ 이상이 되도록 제어하는 것을 특징으로 하는 원통형 셀이 적용된 전기 차량용 배터리 팩의 열교환 냉난방 구조.In order to supply power to the electric vehicle, six battery cells are inserted into the insertion grooves of the upper case 110 and the lower case 120, respectively, and are coupled to the spring 140 through the nut terminal 130 having a terminal groove. a battery pack 100 for mounting a plurality of fastened battery cell modules 170; an aluminum cooling channel 210 having a built-in cooling water line between the battery cell module and the battery cell module to provide cooling and heating of the battery pack 100 and heat exchange by contacting each of them; Thermal pads respectively attached to the left and right sides of the battery cell module and the aluminum cooling channel 210 to maximize a contact area; a heat pump heating/cooling line 910 that operates to forcibly circulate the cooling water by the water pump 750 according to the operation of the driving motor 500 so that the cooling water is supplied to the aluminum cooling channel 210; Cooling the driving motor that operates to cool the coolant heated by the drive motor 500 through the radiator 400 and circulate it forcibly by the cooling line water pump 700 so as to be individually circulated by the coolant circulation flow path switching valve 600 . line 920; It is provided at the front end connected to the aluminum cooling channel 210, and the aluminum cooling channel 210 is installed between the battery cell module 170 and the battery cell module in the battery pack 100, respectively, and in each aluminum cooling channel 210. a manifold 220 operable to distribute a flow rate so that the same flow rate of cooling water flows; And the cooling water heated by the cooling water circulation flow path switching valve 600 according to the driving of the driving motor 500 is cooled by the driving motor cooling line 920 and forcibly circulated through the cooling line water pump 700 . The radiator 400 to become In the heat exchange heating/cooling structure of a battery pack for an electric vehicle to which a cylindrical cell that provides heating and cooling of the battery pack by changing the flow path of the other interlocked cooling water circulation flow path switching valve 600 through
Cooling mode driving of vehicle battery pack
Cooling water supplied into the aluminum cooling channel 210 in the battery pack 100 by driving the heater pump 310 of the heater pump air conditioning unit 300 to cool the battery cell module 170 mounted on the battery pack 100 . is operated so that the cooling water is forcibly circulated by the water pump 750 according to the operation of the driving motor 500 so that the
The initial heating mode of the vehicle battery pack is
The PTC heater 230 surrounding the battery pack 100 is rapidly heated to operate in a state in which the battery is heated before the driving motor 500 is driven and the driving motor temperature rises to an appropriate temperature, and a 3-way valve ( 800) by connecting the first port 810 and the second port 820 and blocking the third port 830 to set the cooling water circulation flow path switching valve 600 to an individual circulation mode for each cooling water line, and then to the heat pump 310 ) by switching the driving mode to the heating mode, heating the cooling water flowing along the heat pump heating/cooling line 910 to heat the heat exchanger 320 to control the temperature of the battery pack 100 to be 0° C. or higher through heat exchange, and driving When the temperature rises to an appropriate temperature through the driving of the motor 500, the second port 820 and the third port 830 of the 3-way valve 800 are connected to maintain the proper battery temperature of the battery pack 100, and the After blocking 1 port 810, the cooling water circulation flow path switching valve 600 is placed in the cooling water line circulation mode, and then the heat pump heating/cooling line 910 and the driving motor cooling line 920 are connected to supply the heated cooling water to the battery pack ( 100) to control the temperature of the battery pack 100 to be 0°C or higher by circulating the battery pack 100). 삭제delete 삭제delete 삭제delete 삭제delete
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