The invention discloses an electric vehicle charging interface which comprises a power supply positive terminal, a power supply negative terminal, a protection grounding terminal, a first communication terminal, a second communication terminal, a charging confirmation terminal, a low-voltage auxiliary power supply positive terminal and a low-voltage auxiliary power supply negative terminal. The invention further discloses an electric vehicle charging system based on the charging interface, the system comprises a charging loop, a communication loop and a low-voltage auxiliary power supply loop, and a first detection point and a second detection point are arranged in the system. In the charging process, the vehicle judges whether the vehicle low-voltage power supply is normal according to the voltage of the second detection point and controls communication between the vehicle and the charging device. Compared with a direct current interface which is widely used at present, one mechanical jack and one energy consumption resistor are reduced, the energy consumption is lower, the heating value is lower, the safety is higher, and the structure and the control process of a charging system are simpler.

    本发明公开了一种电动汽车充电接口,包括电源正极端、电源负极端、保护接地端、第一通信端、第二通信端、充电确认端、低压辅助电源正极端和低压辅助电源负极端;本发明还公开了一种基于上述充电接口的电动汽车充电系统,系统包括充电回路,通信回路,低压辅助电源回路,系统中设有第一检测点和第二检测点,充电过程中,车辆根据第二检测点的电压判断车辆低压电源是否正常并控制汽车与充电装置的通信。本发明相比于目前广泛使用的直流接口,减少了一个机械插孔和一个能耗电阻,耗能更低,发热量更低,安全性更高,充电系统的结构和控制过程更加简单。


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    Title :

    Electric vehicle direct current charging interface and charging system


    Additional title:

    一种电动汽车直流充电接口及充电系统


    Contributors:
    WU HUIBO (author) / WU KAIFEI (author) / LI WEIFU (author)

    Publication date :

    2021-11-30


    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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