The invention discloses a heat preservation method. The method comprises steps that a heat preservation sleeve is additionally arranged outside a battery pack, the wall of a motor shell is hollow, anupper portion of the motor shell is communicated with a water pumping and injecting device, a lower portion of the motor shell is communicated with the heat preservation sleeve, and the heat preservation sleeve wraps the battery pack; after the motor is stopped and powered off, water in the motor shell flows back to the battery heat preservation sleeve to preserve the heat of the battery pack, sothat the battery pack is not in a low-temperature state when started next time, the endurance mileage of the electric vehicle in winter is increased, and remarkable technical progress is achieved in the field.

    本发明公开了一种电动车电池保温方法,它是在电池组外加装保温套,电机外壳的壁设为中空,并在其上部连通抽注水装置,其下部连通保温套,保温套包裹于电池组外,可在汽车运行时,由抽注水装置将介质液抽出保温套,吸收电机工作时的热量,并在停车断电后将电机外壳内的水流回至电池保温套,对电池组进行保温,使电池组能在下次启动时,不处于低温状态,提高了冬季电动车的续航里程,在本领域有显著技术进步。


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    Title :

    Electric vehicle battery heat preservation method


    Additional title:

    一种电动车电池保温方法


    Contributors:
    SHEN JIANYU (author)

    Publication date :

    2020-12-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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