The invention discloses an automobile lithium battery discharge safety protection circuit, which comprises an automobile collision detection circuit, a fire detection circuit, a relay control switch circuit and a short circuit detection circuit, and is characterized in that the automobile collision detection circuit is used for detecting the driving state of an automobile and outputting a collision signal when detecting that the automobile is collided; the fire detection circuit is used for detecting whether a fire accident occurs in the automobile or not and outputting a fire signal when detecting that the automobile is on fire; the short-circuit detection circuit is used for detecting whether the automobile is short-circuited or not and outputting a short-circuit signal when detecting that the automobile is short-circuited, and the relay control switch circuit is used for performing disconnection control on a lithium battery power supply loop of the automobile when detecting the collision signal and the fire signal or detecting the collision signal and the short-circuit signal. In this way, power supply cut-off control processing is conducted in time after the situations of short circuit, fire and the like occur after the automobile collides, and the safety of the automobile can be further guaranteed.

    本发明公开了一种汽车锂电池放电安全保护电路,包括汽车碰撞检测电路、起火检测电路、继电器控制开关电路和短路检测电路,通过汽车碰撞检测电路用于检测汽车的行驶状态,并检测到汽车出现碰撞时,输出碰撞信号;起火检测电路用于检测汽车是否产生起火事故,并检测到汽车出现起火时,输出起火信号;短路检测电路用于检测汽车是否产生短路,并在检测汽车出现短路时,输出短路信号,继电器控制开关电路用于检测到所述碰撞信号和起火信号时,或者用于检测到所述碰撞信号和短路信号时,对所述汽车的锂电池供电回路进行断开控制。如此,在汽车碰撞后出现短路、起火等情况后及时进行供电切断控制处理,可进一步保证汽车的安全性。


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    Title :

    Automobile lithium battery discharge safety protection circuit


    Additional title:

    汽车锂电池放电安全保护电路


    Contributors:
    LIU SHENGLI (author) / LIN WUXUAN (author)

    Publication date :

    2023-12-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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




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