The invention discloses a protection mode switchable electric leakage protection device and method and an alternating current charging pile. The electric leakage protection device is provided with a first output pin and a first input pin, the first input pin is used for receiving an external input signal, the external signal comprises a first signal or a second signal, and the first output pin is used for outputting an electric leakage early warning signal; the electric leakage protection device further comprises a mode switching circuit, the mode switching circuit is connected with the first input pin and the first output pin, the mode switching circuit is switched to a first protection mode when receiving the first signal, and the mode switching circuit is switched to a second protection mode when receiving the second signal; and an electric leakage early warning signal corresponding to the first protection mode or an electric leakage early warning signal corresponding to the second protection mode is output through the first output pin. According to the electric leakage protection device and method and the alternating current charging pile, the requirement of switching protection modes can be met, and the cost is controlled.
一种保护模式可切换的漏电保护装置、方法和交流充电桩,该漏电保护装置具有第一输出引脚和第一输入引脚,第一输入引脚用于接收外部输入信号,外部信号包括第一信号或第二信号,第一输出引脚用于输出漏电预警信号;漏电保护装置还包括模式切换电路,模式切换电路连接第一输入引脚和第一输出引脚,模式切换电路在接收到第一信号时切换至第一保护模式,以及在接收到第二信号时切换至第二保护模式,并通过第一输出引脚输出第一保护模式对应的漏电预警信号或第二保护模式对应的漏电预警信号。该漏电保护装置、方法和交流充电桩既能满足切换保护模式的需求,又控制了成本。
Protection mode switchable electric leakage protection device and method and alternating current charging pile
一种保护模式可切换的漏电保护装置、方法和交流充电桩
04.01.2022
Patent
Elektronische Ressource
Chinesisch
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