The invention relates to a periodic circulating flow lithium ion battery cooling system and a cooling method. The cooling system comprises a working medium flow channel arranged around a battery pack, turnover valves are respectively arranged around the battery pack, and the size of the turnover valves is equal to the caliber of the working medium flow channel; and the flowing direction of the cooling working medium on the battery pack can be correspondingly adjusted by adjusting the turnover valve. According to the cooling method, control is conducted in the following two working states in one cooling working period: in the first working state, a first turnover valve and a fourth turnover valve are opened, a third turnover valve and a second turnover valve are closed, and a cooling working medium enters from the first turnover valve and flows out from the fourth turnover valve; in the second working state, the first turnover valve and the fourth turnover valve are closed, the third turnover valve and the second turnover valve are opened, and a cooling working medium enters from the third turnover valve and flows out from the second turnover valve. The temperature difference in the flowing direction of the cooling working medium can be remarkably reduced.

    一种周期性循环流动锂离子电池冷却系统及冷却方法,冷却系统包括环绕电池组布置的工质流道,电池组的四周分别设置有翻转阀门,翻转阀门的大小与工质流道的口径相等,通过调节翻转阀门能够对应调节冷却工质在电池组上的流动方向。冷却方法在一个冷却工作周期内分为以下两个工作状态进行控制:第一工作状态下第一翻转阀门和第四翻转阀门开启,第三翻转阀门和第二翻转阀门关闭,冷却工质从第一翻转阀门处进入,从第四翻转阀门处流出;第二工作状态下第一翻转阀门和第四翻转阀门关闭,第三翻转阀门和第二翻转阀门打开,冷却工质从第三翻转阀门处进入,从第二翻转阀门处流出。本发明能够显著降低冷却工质流动方向的温度差。


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    Title :

    Periodic circulating flow lithium ion battery cooling system and cooling method


    Additional title:

    一种周期性循环流动锂离子电池冷却系统及冷却方法


    Contributors:
    YU BINYAN (author) / LIU QIN (author) / WANG LU (author)

    Publication date :

    2021-04-13


    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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