The invention provides a circuit and method for confirming connection between an electric ship and a charging gun, and the electric ship, and relates to the technical field of ship charging. The circuit comprises a voltage sampling sub-circuit which is used for collecting the sampling voltage of a voltage sampling point after a CC2 resistor of the charging gun is connected; the upper limit voltage determination sub-circuit and the lower limit voltage determination sub-circuit are used for outputting corresponding limit voltage according to the sampling voltage and the current access resistance value of the variable resistor of the corresponding determination sub-circuit; the logic sub-circuit is used for outputting a logic judgment voltage representing a logic judgment result through high and low levels according to the limit voltage output by the upper limit voltage determination sub-circuit and the limit voltage output by the lower limit voltage determination sub-circuit; and the isolation display sub-circuit is used for driving an optical coupler in the isolation display sub-circuit by using the logic judgment voltage, so that whether the electric ship is successfully connected to the charging gun or not can be confirmed according to the light emitting condition of the optical coupler. The accuracy of confirming whether the charging gun is connected successfully or not is improved, and the circuit adaptability is improved.

    本公开提供涉及船舶充电技术领域的一种用于电动船与充电枪连接确认的电路、方法及电动船,包括:电压采样子电路用于采集接入充电枪的CC2电阻后电压采样点的采样电压;上限电压确定子电路和下限电压确定子电路用于根据采样电压以及对应的该确定子电路的可变电阻的当前接入阻值,输出对应的限值电压;逻辑子电路用于根据上限电压确定子电路输出的限值电压和下限电压确定子电路输出的限值电压,输出通过高低电平表征逻辑判断结果的逻辑判断电压;隔离显示子电路用于将逻辑判断电压用于驱动隔离显示子电路中的光耦合器,以使能够通过光耦合器发光情况确认电动船是否接入充电枪成功。提高了确认充电枪是否接入成功的准确性和提高电路的适配性。


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    Title :

    Circuit and method for confirming connection between electric ship and charging gun and electric ship


    Additional title:

    用于电动船与充电枪连接确认的电路、方法及电动船


    Contributors:
    LI YAOWEN (author) / ZHUANG YISHI (author) / WANG YUNFEI (author) / LIAO HANCHENG (author) / WEI QINGHUA (author) / JING XINGMAN (author) / YANG SHUN (author) / XIE XIANGHAN (author) / LYU XIAOWEN (author) / LI WENPING (author)

    Publication date :

    2023-03-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



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