The invention relates to a charging pile BMS power supply control circuit, a direct current charging pile and a charging system.The charging pile BMS power supply control circuit comprises a first power supply, a second power supply, a first relay and a second relay, and the input end of each relay is connected with the voltage output end of the corresponding power supply; the first diode and the second diode are connected in series front and back, the two ends of the third relay are correspondingly connected with the output end of the first relay and the output end of the second relay respectively, and a third resistor is arranged between the second diode and the BMS power supply output end of the direct current charging pile. The two ends of the third resistor are respectively provided with a current sampling point for collecting a current instantaneous value of a power supply loop through a resistor, so that the charging control unit stops charging the vehicle through judgment processing when CAN communication between the charging control unit and the BMS of the vehicle to be charged is abnormal, and misjudgment of power supply of the direct-current charging pile caused by the BMS fault of the vehicle is avoided.

    本发明涉及一种充电桩BMS供电控制电路、直流充电桩及充电系统,该充电桩BMS供电控制电路包括第一供电电源、第二供电电源、第一继电器和第二继电器,每个继电器的输入端连接对应供电电源的电压输出端,并且还增加设置前后串联的第一二极管和第二二极管,以及两端分别对应连接第一继电器输出端和第二继电器输出端的第三继电器,第二二极管与直流充电桩的BMS供电输出端之间设第三电阻,该第三电阻两端分别通过电阻设置采集供电回路电流瞬时值的电流采样点,使得充电控制单元通过判断处理以实现在充电控制单元与待充电车辆的BMS之间CAN通讯异常时停止给车辆充电,从而避免因车辆BMS故障而导致直流充电桩误判供电。


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    Titel :

    Charging pile BMS power supply control circuit, direct current charging pile and charging system


    Weitere Titelangaben:

    充电桩BMS供电控制电路、直流充电桩及充电系统


    Beteiligte:
    ZHANG YUHANG (Autor:in) / CHEN LIFENG (Autor:in) / ZHAO HONGYUE (Autor:in) / RU LIMING (Autor:in)

    Erscheinungsdatum :

    2023-11-07


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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




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