The invention provides a waterproof and spark-proof switch circuit system for an electric vehicle. The waterproof and spark-proof switch circuit system comprises a switch SW, a triode Q1, a triode Q2, an MOS tube Q3 and a voltage-regulator tube ZD1, wherein one end of the switch SW is connected with the base end of the triode Q1, and the other end is connected with the negative electrode end of the battery; the collector electrode end of the triode Q1 is connected with the negative electrode end of the voltage-regulator tube ZD1 and the base electrode end of the triode Q2; the emitter electrode end of the triode Q1 is connected with the negative electrode end of the battery; the collector electrode of the triode Q2 is connected with the positive electrode end of the battery, and the emitter end is connected with the negative electrode end of the battery; the gate electrode end of the MOS tube Q3 is connected with the collector electrode end of the triode Q2, the source electrode end of the MOS tube Q3 is connected with the positive electrode end of the battery, and the drain electrode end of the MOS tube Q3 is connected with the negative electrode end of the battery through a controlled component. The waterproof and spark-proof functional requirements of the electric vehicle are met, the structure is simple, cost is low, and large-scale application is facilitated.

    本发明提供了一种电动车防水防火花开关电路系统,包括开关SW、三极管Q1、三极管Q2、MOS管Q3和稳压管ZD1;开关SW一端连接三极管Q1的基极端,另一端连接电池负极端;三极管Q1的集电极端分别连接稳压管ZD1的负极端和三极管Q2的基极端,三极管Q1的发射极端连接电池负极端;三极管Q2的集电极连接电池正极端,三极管Q2的发射极端连接电池负极端;MOS管Q3的栅极端连接三极管的Q2的集电极端,MOS管Q3的源极端连接电池正极端,MOS管Q3的漏极端通过受控部件连接电池负极端。本发明满足电动车防水防火花的功能要求,且结构简单,成本低廉,利于大量应用。


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    Title :

    Waterproof and spark-proof switch circuit system of electric vehicle


    Additional title:

    一种电动车防水防火花开关电路系统


    Contributors:
    BI NINGNING (author) / HAN YIXI (author) / CHENG JIANTING (author) / GUO ZEMIN (author)

    Publication date :

    2021-07-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS



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