The invention provides a three-phase alternating current charging pile and an output short circuit judgment method. The three-phase alternating current charging pile is provided with a first end used for a power supply to receive three-phase input and a second end connected with a vehicle to be charged through a charging gun; the first lead L1, the second lead L2, the third lead L3 and the fourth lead N are arranged between the first end and the second end and are respectively connected to the matching terminals of the first end and the second end; the main switch is electrically connected with the control module, the first end and the second end are electrically connected when the main switch is switched on, and the first end and the second end are electrically disconnected when the main switch is switched off; the short circuit detection circuit is provided with a detection switch, a voltage division unit and a detection circuit, the signal input end of the detection switch is electrically connected to the second end, the signal output end of the detection switch is connected to the voltage division unit, and the detection circuit is electrically connected with the voltage division unit and feeds back detection information to the control module. The control module determines whether an output short circuit occurs based on the received detection information.
本申请提出一种三相交流充电桩及输出短路判断方法。该三相交流充电桩有第一端,其用于电源以接收三相输入,第二端,其通过充电枪连接待充电的车辆;第一导线L1、第二导线L2、第三导线L3及第四导线N,其介于第一端与第二端之间,且分别连接至第一端及第二端的匹配端子;主开关,其电性连接控制模块,所述主开关闭合使得第一端与第二端间电性导通,所述主开关断开使得第一端与第二端间电性断开;短路检测电路,其具有检测开关,分压单元及检测电路,检测开关的信号输入端电性连接至第二端,检测开关的信号输出端连接至分压单元,检测电路电性连接分压单元,并将检测信息反馈至所述控制模块,控制模块基于接收的检测信息判断是否发生输出短路。
Three-phase alternating current charging pile and output short circuit judgment method
一种三相交流充电桩及输出短路判断方法
2023-08-04
Patent
Electronic Resource
Chinese
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