The invention discloses a grounding detection circuit and method and a three-phase alternating current charging pile, and the circuit comprises a three-phase alternating current input end which provides a high-voltage alternating current for the three-phase alternating current charging pile according to an external alternating current; the input end of the rectifying unit is connected with the three-phase alternating current input end, and the rectifying unit is used for rectifying the high-voltage alternating current into direct current and outputting the direct current; the input end of the detection circuit is connected with the output end of the rectifying unit, and the detection circuit judges the grounding condition of the three-phase alternating current charging pile according to the output direct current and outputs a detection signal through the output end. Real-time grounding detection is carried out on the three-phase alternating current charging pile through the detection circuit, meanwhile, the three-phase alternating current charging pile grounding detection circuit can still be used in the actual working process of the three-phase alternating current charging pile, the actual usability of the three-phase alternating current charging pile is guaranteed, and the safety of the whole circuit is also guaranteed.
本发明公开一种接地检测电路、方法及三相交流充电桩,其中,所述接地检测电路包括:三相交流输入端,所述三相交流输入端根据外部的交流电为所述三相交流充电桩提供高压交流电;整流单元,所述整流单元的输入端连接所述三相交流输入端,所述整流单元用于将所述高压交流电整流为直流电输出;检测电路,所述检测电路的输入端连接所述整流单元的输出端,所述检测电路根据输出的所述直流电判断所述三相交流充电桩的接地状况,并通过输出端输出检测信号。本发明通过检测电路对三相交流充电桩进行实时接地检测,同时本发明可以在三相交流充电桩实际工作过程中仍然可以使用,既保证了三相交流充电桩的实际使用性,又保证了整体电路的安全性。
Grounding detection circuit and method and three-phase alternating current charging pile
一种接地检测电路、方法及三相交流充电桩
2024-04-19
Patent
Electronic Resource
Chinese
Three-phase alternating current charging pile and output short circuit judgment method
European Patent Office | 2023
|Relay adhesion detection circuit and alternating current charging pile
European Patent Office | 2024
|European Patent Office | 2023
|European Patent Office | 2025
|Charging pile AC controller grounding detection circuit and method
European Patent Office | 2020
|