The present invention relates to a battery cooling system for an electric vehicle to increase cooling efficiency for battery cells. According to the present invention, the battery cooling system comprises: a circulation passage arranged in a closed-circuit structure so that cooling water flows in a circulation manner; a first pump applying a fluid pressure to the cooling water inside the circulation passage; a driving motor installed at the rear end of the first pump in the circulation passage to generate a driving force of an electric vehicle; a motor control device controlling operation of the driving motor; a radiator cooling the cooling water heated while passing the drive motor; a second pump applying a fluid pressure to the cooling water passing through the radiator and supplying the pressurized cooling water to an ion filter; a cooling water heater installed at the rear end of a battery pack in the circulation passage to heat the cooling water; a chiller installed between the first pump and the cooling water heater in the circulation passage to cool the cooling water; the battery pack having a battery housing in which battery cells are embedded; and the ion filter installed at the front end of the battery housing in the circulation passage to remove ions from the cooling water supplied to the battery housing.

    본 발명에 의한 전기차용 배터리 냉각시스템은, 냉각수가 순환방식으로 흐를 수 있도록 폐회로 구조로 배열되는 순환유로와, 상기 순환유로 내부의 냉각수에 유동압을 가하는 제1 펌프와, 상기 순환유로 중 상기 제1 펌프의 후단에 설치되어 전기차의 구동력을 발생시키는 구동모터와, 상기 구동모터의 동작을 제어하는 모터제어장치와, 상기 구동모터를 지나는 동안 가열된 냉각수를 냉각시키는 라디에이터와, 상기 라디에이터를 지난 냉각수에 유동압을 가하여 상기 이온필터로 공급하는 제2 펌프와, 상기 순환유로 중 상기 배터리팩의 후단에 설치되어 냉각수를 가열하는 냉각수히터와, 상기 순환유로 중 상기 제1 펌프와 상기 냉각수히터 사이에 설치되어 냉각수를 냉각시키는 칠러와, 배터리셀이 내장된 배터리하우징을 구비하는 배터리팩과, 상기 순환유로 중 상기 배터리하우징의 선단측에 장착되어 상기 배터리하우징으로 공급되는 냉각수의 이온을 제거하는 이온필터를 포함하여 구성된다.


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    Title :

    BATTERY COOLING SYSTEM FOR ELECTRIC VEHICLE


    Additional title:

    전기차용 배터리 냉각시스템


    Contributors:

    Publication date :

    2022-03-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B01D SEPARATION , Trennen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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