The invention relates to the technical field of power batteries, and provides a power supply circuit of a power battery cooling system, a power battery system and a power battery thermal runaway processing method. The cooling system cools and dissipates heat of a power battery of the electric vehicle when the power battery is in a thermal runaway state, the cooling system is powered by a whole vehicle storage battery of the electric vehicle, and the power supply circuit comprises a relay module. The relay module comprises at least one relay group, and at least one battery module of the power battery is connected with the input end of a whole vehicle storage battery through the relay group, so that the battery module directly charges the whole vehicle storage battery. The battery module iscontrolled by the relay module to directly supply power to the whole vehicle storage battery, the whole vehicle storage battery can be continuously supplied with power when thermal runaway happens tothe power battery and the main positive relay and the main negative relay are not allowed to be closed, and it is guaranteed that power of an electronic water pump of the cooling system can be continuously supplied.

    本发明涉及动力电池技术领域,提供一种动力电池冷却系统的供电电路、动力电池系统以及动力电池热失控处理方法。所述冷却系统在电动车辆的动力电池处于热失控状态时对所述动力电池进行冷却散热,所述冷却系统通过电动车辆的整车蓄电池供电,所述供电电路包括继电器模块;所述继电器模块包括至少一个继电器组,所述动力电池的至少一个电池模组通过继电器组与整车蓄电池的输入端连接,以实现电池模组直接为整车蓄电池充电。本发明通过继电器模块控制电池模组直接为整车蓄电池供电,在动力电池发生热失控不允许主正主负继电器闭合时,能够持续的为整车蓄电池供电,保证冷却系统的电子水泵的电源可持续供应。


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    Title :

    Power supply circuit of power battery cooling system and power battery system


    Additional title:

    动力电池冷却系统的供电电路及动力电池系统


    Contributors:
    ZHANG HAIJIAN (author) / KANG CECE (author)

    Publication date :

    2021-03-16


    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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