KR20030089904A - Cooling system of electric vehicles - Google Patents

Cooling system of electric vehicles Download PDF

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Publication number
KR20030089904A
KR20030089904A KR1020020027814A KR20020027814A KR20030089904A KR 20030089904 A KR20030089904 A KR 20030089904A KR 1020020027814 A KR1020020027814 A KR 1020020027814A KR 20020027814 A KR20020027814 A KR 20020027814A KR 20030089904 A KR20030089904 A KR 20030089904A
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South Korea
Prior art keywords
cooling
cooling pipe
inverter
water pump
charging
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KR1020020027814A
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Korean (ko)
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KR100444064B1 (en
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서준혁
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현대자동차주식회사
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Priority to KR10-2002-0027814A priority Critical patent/KR100444064B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00—Applications
    • F01P2050/22—Motor-cars

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE: A cooling system is provided to reduce noises and heat by preventing an overload of the water pump, while minimizing a power consumption and achieving improved performance of charging system. CONSTITUTION: A cooling system comprises a travel mode cooling pipeline formed by connecting a water pump and a cooling fan(9) through the first cooling pipeline(21), the cooling fan and a motor controller(3) through the second cooling pipeline(23), the motor controller and a motor(5) through the third cooling pipeline(25), the motor and an inverter through the fourth cooling pipeline(27), and the inverter and the water pump through the fifth cooling pipeline(29); a charging mode cooling pipeline formed by connecting the second cooling pipeline and a charging board(1) through the sixth cooling pipeline(31), and the inverter and the fifth cooling pipeline through the seventh cooling pipeline(33); the first converting unit for permitting the refrigerant to flow to the motor controller or the charging board in accordance with the operation mode of the electric vehicle; and the second converting unit for selective connection of the refrigerant to the charging board or the inverter in accordance with the operation mode of the electric vehicle.

Description

전기자동차용 냉각시스템{COOLING SYSTEM OF ELECTRIC VEHICLES}COOLING SYSTEM OF ELECTRIC VEHICLES}

본 발명은 전기자동차용 냉각시스템에 관한 것으로서, 보다 상세하게는 배터리 충전모드와 주행모드 별로 냉매 흐름을 다르게 선정하여 냉각효율을 향상시킬 수 있도록 하는 전기자동차용 냉각시스템에 관한 것이다.The present invention relates to a cooling system for an electric vehicle, and more particularly, to a cooling system for an electric vehicle to improve the cooling efficiency by differently selecting the refrigerant flow for each battery charging mode and driving mode.

일반적으로 전기자동차는 나날이 심각해져 가는 대기오염을 방지하기 위한 대비책과 한정된 유체 에너지를 새로운 에너지원으로 대체하고자 하는 목적에서 개발된 것으로, 배터리의 전원으로 모터를 구동시켜 일정 차속 이상의 주행성을 확보하여 이동수단으로서의 역할을 담당하고 있다.In general, electric vehicles have been developed for the purpose of preventing air pollution, which is getting worse day by day, and to replace limited fluid energy with new energy sources. It plays a role as.

이러한 전기자동차의 운행에 있어서, 종래에는 가장 치명적인 열문제를 해결하기 위하여 열 방출이 심한 모터, CEU(제어장치), 에어컨 인버터, 배터리 등에 냉각 시스템을 적용하여 열문제를 해결하고 있으며, 이 중에서, 배터리는 독자적인 냉각 시스템을 이루어 작동하며, 그 외 모터, CEU, 에어컨 인버터는 서로 하나의 냉각 시스템을 통하여 냉각시키고 있다.In the operation of such electric vehicles, conventionally, in order to solve the most fatal heat problem, the cooling problem is applied to a motor, a CEU (control unit), an air conditioner inverter, a battery, and the like, which solves the heat problem. The batteries operate in their own cooling system, while the motors, CEUs and air-conditioning inverters cool each other through a single cooling system.

그러나 상기한 바와 같은 종래의 전기자동차용 냉각시스템에서는 충전모드가 주행모드에 비해 월등히 열제어를 요구하는 부분이 적은데, 즉, 전기자동차의 동작은 주행모드와 충전모드로 동작되며 모드에 따른 발열원이 구별되어 전기자동차용 냉각 시스템에서 냉매 흐름을 이루고 있는 요소 중, 충전모드 시, 열제어를 필요로 하는 부분은 충전보드밖에 없음에도 불구하고, 코일 형태의 냉매 흐름을 가진 모터, 구불구불한 냉매 흐름을 가진 CEU 및 인버터가 실질적으로 냉각을 위한 냉매의 흐름을 크게 방해하고 있어 이를 제어하기 위한 워터펌프와 쿨링 팬의 사용이 비효율적으로 이루어지고 있는 문제점이 있다.However, in the conventional electric vehicle cooling system as described above, the charging mode requires much less heat control than the driving mode. That is, the operation of the electric vehicle operates in the driving mode and the charging mode, and the heat source according to the mode is reduced. Among the components that make up the refrigerant flow in the cooling system for electric vehicles, in the charging mode, only the charging board is required, but the motor having the coil-like refrigerant flow and the tortuous refrigerant flow are required only in the charging board. Since the CEU and the inverter has substantially hindered the flow of the refrigerant for cooling substantially, there is a problem that the use of a water pump and a cooling fan to control it is made inefficient.

또한, 주행모드 시에 비하여 충전모드 시에는 소음 발생이나 열발생에 대해 환경적 요구 조건이 매우 제한적임에도 불구하고, 종래 냉각 시스템에서는 충전모드 시에 냉각이 필요치 않는 요소까지 냉매 흐름에 포함되어 냉각 시스템의 부하를 가중시켜 결국 고용량의 펌프와 고속의 쿨링 팬 동작으로 제한적인 공간, 특히 실내에서의 충전 시, 엄청난 소음과 열을 발생시켜 효율적인 차량 충전을 저해하고 있는 실정이다.In addition, although the environmental requirements for noise generation and heat generation are very limited in the charging mode compared to the driving mode, in the conventional cooling system, even the elements that do not require cooling in the charging mode are included in the refrigerant flow. As a result, the high-capacity pump and the high-speed cooling fan operate to generate an enormous noise and heat when charging in a limited space, especially indoors, thereby preventing efficient vehicle charging.

따라서 본 발명은 상기한 바와 같은 문제점들을 해소하기 위하여 창출된 것으로써, 본 발명의 목적은 전기자동차의 배터리 충전모드와 주행모드 별로 냉매 흐름을 다르게 선정하여 냉각효율을 향상시킬 수 있도록 하는 전기자동차용 냉각시스템을 제공하는 것이다.Therefore, the present invention was created to solve the problems as described above, an object of the present invention is for an electric vehicle to improve the cooling efficiency by differently selecting the refrigerant flow for each battery charging mode and driving mode of the electric vehicle To provide a cooling system.

도 1은 본 발명에 따른 전기자동차용 냉각시스템의 구성도이다.1 is a block diagram of a cooling system for an electric vehicle according to the present invention.

도 2는 본 발명에 따른 전기자동차용 냉각시스템의 주행모드 시의 냉매 흐름도이다.2 is a flow chart of a refrigerant in a driving mode of an electric vehicle cooling system according to the present invention.

도 3은 본 발명에 따른 전기자동차용 냉각시스템의 충전모드시의 냉매 흐름 도이다.3 is a refrigerant flow diagram in the charging mode of the cooling system for an electric vehicle according to the present invention.

상기한 바와 같은 목적을 달성하기 위한 본 발명에 따른 전기자동차용 냉각시스템은 충전보드와 모터 제어기, 모터, 인버터 및 쿨링 팬을 워터펌프와 냉각배관을 통하여 연결하여 구성되는 전기자동차용 냉각시스템에서,The electric vehicle cooling system according to the present invention for achieving the above object is in the electric vehicle cooling system configured by connecting the charging board and the motor controller, motor, inverter and cooling fan through the water pump and the cooling pipe,

상기 워터펌프와 쿨링 팬을 제1냉각배관으로 연결하고, 상기 쿨링 팬과 상기 모터 제어기를 제2냉각배관으로 연결하며, 상기 모터 제어기와 모터를 제3냉각배관으로 연결하고, 상기 모터와 상기 인버터를 제4냉각배관으로 연결하며, 상기 인버터와 상기 워터펌프를 제5냉각배관으로 연결하여 주행모드 냉각배관을 형성하고, 상기 주행모드 냉각배관 중, 상기 쿨링 팬과 상기 모터 제어기를 연결하는 제2냉각배관의 일측과 상기 충전보드를 제6냉각배관으로 연결하며, 상기 충전보드는 다시, 상기 인버터와 상기 워터펌프를 연결하는 제5냉각배관의 일측을 제7냉각배관으로 연결하여 충전모드 냉각배관을 형성하며, 상기 제2냉각배관과 제6냉각배관이 연결되는 일측에는 상기 쿨링 팬으로부터의 냉매가 전기자동차의 운행모드에 따라 모터 제어기 또는 충전보드로 선택으로 흐를 수 있도록 제1전환수단을 구성하며, 상기 제5냉각배관과 제7냉각배관이 연결되는 일측에는 상기 전기자동차의 운행모드에 따라 워터펌프에 대하여 충전보드와 인버터로의 냉매 흐름을 선택적으로 연결하는 제2전환수단을 구성하는 것을 특징으로 한다.Connecting the water pump and the cooling fan to a first cooling pipe, connecting the cooling fan and the motor controller to a second cooling pipe, connecting the motor controller and the motor to a third cooling pipe, and connecting the motor and the inverter. To a fourth cooling pipe, connecting the inverter and the water pump to the fifth cooling pipe to form a driving mode cooling pipe, and a second connecting the cooling fan and the motor controller among the driving mode cooling pipes. One side of the cooling pipe and the charging board is connected to the sixth cooling pipe, and the charging board is connected to one side of the fifth cooling pipe connecting the inverter and the water pump to the seventh cooling pipe to charge mode cooling pipe And a refrigerant from the cooling fan at one side to which the second cooling pipe and the sixth cooling pipe are connected, according to a driving mode of the electric vehicle. A first switching means is configured to flow to the board selectively, and on one side to which the fifth cooling pipe and the seventh cooling pipe are connected, the refrigerant flows to the charging board and the inverter for the water pump according to the driving mode of the electric vehicle. Characterized in that the second switching means for selectively connecting the.

상기 제1,제2전환수단은 3웨이 솔레노이드 밸브로 이루어지며, 상기 모터 제어기로부터 운행모드에 따른 작동신호를 받는 것을 특징으로 한다.The first and second switching means are composed of a three-way solenoid valve, characterized in that for receiving an operation signal according to the driving mode from the motor controller.

이하 본 발명의 바람직한 구성 및 작용을 첨부한 도면에 의거하여 보다 상세하게 설명하면 다음과 같다.Hereinafter, the preferred configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 전기자동차용 냉각시스템의 구성도로서, 본 발명에 따른 전기자동차용 냉각시스템은 발열원인 충전보드(1)와 모터 제어기(3), 모터 (5), 인버터(7) 및 쿨링 팬(9)을 워터펌프(11)와 주행모드 냉각배관 및 충전모드 냉각배관을 통하여 연결하여 구성되는데, 먼저, 상기 주행모드 냉각배관은 상기 워터펌프(11)의 냉매 배출포트와 쿨링 팬(9)의 냉매 입력포트를 제1냉각배관(21)으로 연결한다.1 is a configuration diagram of a cooling system for an electric vehicle according to the present invention, the cooling system for an electric vehicle according to the present invention is a charging board (1) and the motor controller (3), the motor (5), the inverter (7) as a heating source And a cooling fan 9 connected to the water pump 11 through the driving mode cooling pipe and the charging mode cooling pipe. First, the driving mode cooling pipe is a refrigerant discharge port and a cooling fan of the water pump 11. The refrigerant input port (9) is connected to the first cooling pipe (21).

또한, 상기 쿨링 팬(9)의 냉매 배출포트와 상기 모터 제어기(3)의 냉매 입력포트를 제2냉각배관(23)으로 연결하며, 상기 모터 제어기(3)의 냉매 배출포트와 모터(5)의 냉매 입력포트를 제3냉각배관(25)으로 연결한다.In addition, the refrigerant discharge port of the cooling fan 9 and the refrigerant input port of the motor controller 3 are connected to the second cooling pipe 23, and the refrigerant discharge port of the motor controller 3 and the motor 5. Connect the refrigerant input port of the third cooling pipe (25).

상기 모터(5) 냉매 배출포트와 상기 인버터(7)의 냉매 입력포트를 제4냉각배관(27)으로 연결하며, 상기 인버터(7)의 냉매 배출포트와 상기 워터펌프(11)의 냉매 입력포트를 제5냉각배관(29)으로 연결하여 이루어진다.The refrigerant discharge port of the motor 5 and the refrigerant input port of the inverter 7 are connected to the fourth cooling pipe 27, and the refrigerant discharge port of the inverter 7 and the refrigerant input port of the water pump 11 are connected to each other. It is made by connecting to the fifth cooling pipe (29).

그리고 상기 충전모드 냉각배관은 상기 주행모드 냉각배관 중, 상기 쿨링 팬(9)과 상기 모터 제어기(3)를 연결하는 제2냉각배관(23)의 일측과 상기 충전보드(1)의 냉매 입력포트를 제6냉각배관(31)으로 연결하며, 상기 충전보드(1)의 냉매 배출포트는 상기 인버터(7)와 상기 워터펌프(11)를 연결하는 제5냉각배관(29)의 일측을 제7냉각배관(33)으로 연결하여 이루어진다.The charging mode cooling piping is one side of the second cooling piping 23 connecting the cooling fan 9 and the motor controller 3 and the refrigerant input port of the charging board 1 of the driving mode cooling piping. To a sixth cooling pipe 31, and the refrigerant discharge port of the charging board 1 connects one side of the fifth cooling pipe 29 connecting the inverter 7 to the water pump 11. It is made by connecting to the cooling pipe (33).

또한, 상기 제2냉각배관(23)과 제6냉각배관(31)이 연결되는 일측에는 상기 쿨링 팬(9)으로부터의 냉매가 전기자동차의 모터 제어기(3)에서 지시되는 운행모드에 따라 모터 제어기(3) 또는 충전보드(1)로 선택으로 흐를 수 있도록 제1전환수단인 제1전환 3웨이 솔레노이드 밸브(41)을 구성하여 상기 모터 제어기(3)의 작동신호에 따라 작동하게 된다.In addition, at one side to which the second cooling pipe 23 and the sixth cooling pipe 31 are connected, the refrigerant from the cooling fan 9 is controlled by the motor controller 3 of the electric vehicle. 3 or the first switching 3-way solenoid valve 41 which is the first switching means to flow to the charging board 1 is configured to operate according to the operation signal of the motor controller 3.

그리고 상기 제5냉각배관(29)과 제7냉각배관(33)이 연결되는 일측에는 상기 전기자동차의 모터 제어기(3)에서 지시되는 운행모드에 따라 워터펌프(11)에 대하여 상기 충전보드(1)와 상기 인버터(7)로의 냉매 흐름을 선택적으로 연결하도록 제2전환수단인 제2전환 3웨이 솔레노이드 밸브(43)을 구성하여 상기 모터 제어기 (3)의 작동신호에 따라 작동하게 된다.The charging board 1 is connected to the water pump 11 according to the driving mode indicated by the motor controller 3 of the electric vehicle at one side to which the fifth cooling pipe 29 and the seventh cooling pipe 33 are connected. ) And a second switching 3-way solenoid valve 43 which is a second switching means to selectively connect the refrigerant flow to the inverter 7 to operate according to the operation signal of the motor controller 3.

상기한 바와 같은 구성을 갖는 전기자동차용 냉각시스템의 각 운행모드별 작동을 도 2와 도 3을 통하여 설명하면, 먼저, 주행모드에서는 상기 도 2에서 도시한 바와 같이, 모터 제어기(3)에서 상기 제1전환 3웨이 솔레노이드 밸브(41)와 제2전환 3웨이 솔레노이드 밸브(43)에 각각 주행모드 작동신호를 출력하여 상기 제1전환 3웨이 솔레노이드 밸브(41)는 상기 쿨링 팬(9)으로부터의 냉매가 상기 제2냉각배관 (23)을 통하여 상기 모터 제어기(3)로 흐르도록 배관을 연결하며, 상기 제6냉각배관(31)은 차단하게 된다.The operation of each driving mode of the electric vehicle cooling system having the configuration as described above will be described with reference to FIGS. 2 and 3. First, as shown in FIG. The first switching 3-way solenoid valve 41 and the second switching 3-way solenoid valve 43 respectively output driving mode operation signals so that the first switching 3-way solenoid valve 41 is discharged from the cooling fan 9. The pipe is connected to the refrigerant flows through the second cooling pipe 23 to the motor controller 3, and the sixth cooling pipe 31 is blocked.

또한, 상기 제2전환 3웨이 솔레노이드 밸브(43)는 상기 인버터(7)으로부터의 냉매가 상기 제5냉각배관(29)을 통하여 상기 워터펌프(11)로 흡입되도록 배관을 연결하며, 상기 제7냉각배관(33)은 차단하게 된다.In addition, the second switch 3-way solenoid valve 43 connects a pipe such that the refrigerant from the inverter 7 is sucked into the water pump 11 through the fifth cooling pipe 29, and the seventh switch. The cooling pipe 33 is blocked.

따라서 상기와 같은 주행모드에서는 9000RPM에 이르는 모터(5)의 동작으로 인한 열의 제어, 에어컨 동작시 인버터(7)에서 발생하는 열의 제어, 모터(5) 구동제어에 의한 열의 제어 등 선택적으로 열제어를 수행하게 된다.Therefore, in the driving mode as described above, heat control such as heat control due to the operation of the motor 5 reaching 9000 RPM, heat control generated by the inverter 7 during air conditioning operation, and heat control by the motor 5 driving control are selectively performed. Will be performed.

그리고 충전모드에서는 충전보드(1)만이 발열원이므로, 상기 도 3에서 도시한 바와 같이, 모터 제어기(3)에서 상기 제1전환 3웨이 솔레노이드 밸브(41)와 제2전환 3웨이 솔레노이드 밸브(43)에 각각 충전모드 작동신호를 출력하여 상기 제1전환 3웨이 솔레노이드 밸브(41)는 상기 쿨링 팬(9)으로부터의 냉매가 상기 제2냉각배관(23)을 통하여 상기 모터 제어기(3)로 흐르지 않도록 배관을 차단하며, 상기 냉매가 제6냉각배관(31)을 통하여 충전보드(1)로 흐르도록 제2냉각배관(23)과 제6냉각배관(31)을 연결하게 된다.In the charging mode, since only the charging board 1 is a heating source, as shown in FIG. 3, the first switching 3-way solenoid valve 41 and the second switching 3-way solenoid valve 43 are provided by the motor controller 3. Each of the first switching 3-way solenoid valves 41 outputs a charging mode operation signal to prevent the refrigerant from the cooling fan 9 from flowing to the motor controller 3 through the second cooling pipe 23. The pipe is blocked and the second cooling pipe 23 and the sixth cooling pipe 31 are connected such that the refrigerant flows through the sixth cooling pipe 31 to the charging board 1.

또한, 상기 제2전환 3웨이 솔레노이드 밸브(43)는 상기 충전보드(1)를 냉각시킨 냉매가 상기 제7냉각배관(33)을 통하여 상기 워터펌프(11)로 흡입되도록 배관을 연결하며, 상기 인버터(7)와 상기 워터펌프(11)를 연결하는 제5냉각배관(29)은 차단하게 된다.In addition, the second switch 3-way solenoid valve 43 connects a pipe such that the refrigerant cooling the charging board 1 is sucked into the water pump 11 through the seventh cooling pipe 33. The fifth cooling pipe 29 connecting the inverter 7 and the water pump 11 is blocked.

따라서 상기와 같은 충전모드에서는 3상 전압 전원을 배터리에 충전하기 위한 충전보드(1)에 의해 발생하는 열의 제어를 한정하여 이룰 수 있다.Therefore, in the charging mode as described above, it is possible to limit the control of the heat generated by the charging board 1 for charging the three-phase voltage power to the battery.

즉, 본 발명에 따른 전기자동차용 냉각시스템은 운행모드에 따른 독립적인 냉매 흐름을 유도하여 필요사양 이상의 쿨링 팬(9)이나, 워터펌프(11)의 동작을 막아 소음과 열 발생을 최소화하여, 충전 환경을 쾌적하게 유지할 수 있으며, 충전시적절한 쿨링 팬(9)과 워터펌프(11)의 동작으로 소모 전력을 최소화하여 배터리 방전을 줄일 수 있고, 무엇보다 열에 의해 성능 특성이 쉽게 변하는 충전보드(1)의 온도제어를 효율적으로 이룰 수 있어 충전시스템의 충전 속도 및 성능을 향상시키게 된다. That is, the cooling system for an electric vehicle according to the present invention induces independent refrigerant flow according to the driving mode, thereby preventing the operation of the cooling fan 9 or the water pump 11 or more that is required, thereby minimizing noise and heat generation. The charging board can be maintained comfortably, and the battery can be reduced by minimizing the power consumption by the operation of the appropriate cooling fan 9 and the water pump 11 during charging, and above all, the charging board whose performance characteristics are easily changed by heat ( The temperature control of 1) can be achieved efficiently, improving the charging speed and performance of the charging system.

상술한 바와 같이 본 발명에 따른 전기자동차용 냉각시스템에 의하면, 전기자동차의 배터리 충전모드와 주행모드 별로 냉매 흐름을 다르게 선정하는 운행모드별 독립적인 냉매 흐름을 선택하여 필요사양 이상의 쿨링 팬이나, 워터펌프의 과부하를 막아 소음과 열 발생을 최소화하며, 동시에 냉각 시스템의 구동을 위한 소모 전력을 최소화하여 배터리 방전을 줄이며, 무엇보다 열에 의해 성능 특성이 쉽게 변하는 충전보드의 온도제어를 효율적으로 이룰 수 있어 충전시스템의 충전 속도 및 성능을 향상시키는 효과가 있다.As described above, according to the cooling system for an electric vehicle according to the present invention, a cooling fan or water having a necessary specification or higher by selecting an independent refrigerant flow for each driving mode that selects a refrigerant flow differently for each battery charging mode and a driving mode of the electric vehicle. By preventing overload of the pump, it minimizes noise and heat generation, and at the same time, it minimizes power consumption for driving the cooling system, and reduces battery discharge. There is an effect of improving the charging speed and performance of the charging system.

Claims (2)

충전보드와 모터 제어기, 모터, 인버터 및 쿨링 팬을 워터펌프와 냉각배관을 통하여 연결하여 구성되는 전기자동차용 냉각시스템에 있어서,In the cooling system for an electric vehicle comprising a charging board and a motor controller, a motor, an inverter and a cooling fan are connected through a water pump and a cooling pipe, 상기 워터펌프와 쿨링 팬을 제1냉각배관으로 연결하고, 상기 쿨링 팬과 상기 모터 제어기를 제2냉각배관으로 연결하며, 상기 모터 제어기와 모터를 제3냉각배관으로 연결하고, 상기 모터와 상기 인버터를 제4냉각배관으로 연결하며, 상기 인버터와 상기 워터펌프를 제5냉각배관으로 연결하여 주행모드 냉각배관을 형성하고,Connecting the water pump and the cooling fan to a first cooling pipe, connecting the cooling fan and the motor controller to a second cooling pipe, connecting the motor controller and the motor to a third cooling pipe, and connecting the motor and the inverter. To a fourth cooling pipe, and connect the inverter and the water pump to a fifth cooling pipe to form a driving mode cooling pipe, 상기 주행모드 냉각배관 중, 상기 쿨링 팬과 상기 모터 제어기를 연결하는 제2냉각배관의 일측과 상기 충전보드를 제6냉각배관으로 연결하며, 상기 충전보드는 다시, 상기 인버터와 상기 워터펌프를 연결하는 제5냉각배관의 일측을 제7냉각배관으로 연결하여 충전모드 냉각배관을 형성하며,Of the driving mode cooling pipe, one side of the second cooling pipe connecting the cooling fan and the motor controller and the charging board is connected to the sixth cooling pipe, the charging board, the inverter and the water pump is connected again One side of the fifth cooling pipe is connected to the seventh cooling pipe to form a charge mode cooling pipe, 상기 제2냉각배관과 제6냉각배관이 연결되는 일측에는 상기 쿨링 팬으로부터의 냉매가 전기자동차의 운행모드에 따라 모터 제어기 또는 충전보드로 선택으로 흐를 수 있도록 제1전환수단을 구성하며,On one side of the second cooling pipe and the sixth cooling pipe is connected to the first switching means so that the refrigerant from the cooling fan flows selectively to the motor controller or the charging board according to the driving mode of the electric vehicle, 상기 제5냉각배관과 제7냉각배관이 연결되는 일측에는 상기 전기자동차의 운행모드에 따라 워터펌프에 대하여 충전보드와 인버터로의 냉매 흐름을 선택적으로 연결하는 제2전환수단을 구성하는 것을 특징으로 하는 전기자동차용 냉각시스템.The second switching means for selectively connecting the refrigerant flow to the charging board and the inverter to the water pump according to the driving mode of the electric vehicle on one side to which the fifth cooling pipe and the seventh cooling pipe are connected. Cooling system for electric vehicles. 청구항 1에 있어서, 상기 제1,제2전환수단은The method according to claim 1, wherein the first and second switching means 3웨이 솔레노이드 밸브로 이루어지며, 상기 모터 제어기로부터 운행모드에 따른 작동신호를 받는 것을 특징으로 하는 전기자동차용 냉각시스템.It consists of a three-way solenoid valve, the cooling system for an electric vehicle, characterized in that receiving an operation signal according to the driving mode from the motor controller.
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KR20040005143A (en) * 2002-07-08 2004-01-16 현대자동차주식회사 Cooling route control system for electric automobile
KR20200133132A (en) 2019-05-17 2020-11-26 현대자동차주식회사 Inverter cooling system and method for vehicle

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