The invention discloses a charging pile and an output short circuit detection method thereof. The charging pile comprises a trunk resistor, a short circuit detection branch, an electric energy metering branch and a control module. The first end of the trunk resistor is connected with the input end of the charging pile; the short-circuit detection branch is connected with the output end of the charging pile; the electric energy metering branch is respectively connected with the second end of the trunk resistor and the short circuit detection branch; the control module is connected with the electric energy metering branch. The short circuit detection branch comprises a detection relay group. The control module is connected with the control end of the detection relay set. The resistance value of the output end of the charging pile is calculated by detecting the current on the electric energy metering branch before and after the relay group, the trunk resistance, the resistance on the electric energy metering branch and the resistance on the short-circuit detection branch in a closed manner, whether the output end of the charging pile is short-circuited is determined according to the resistance value of the output end of the charging pile, the structure is simple, and implementation is easy.
本发明公开了一种充电桩及其输出短路的检测方法。充电桩包括:干路电阻、短路检测支路、电能计量支路和控制模块;干路电阻的第一端与充电桩的输入端连接;短路检测支路连接充电桩的输出端;电能计量支路分别连接干路电阻的第二端与短路检测支路;控制模块与电能计量支路连接,短路检测支路包括检测继电器组;控制模块与检测继电器组的控制端连接。通过闭合检测继电器组前、后电能计量支路上的电流、干路电阻、电能计量支路上的电阻、以及短路检测支路上的电阻,计算充电桩输出端的阻值,根据充电桩输出端的阻值的大小确定充电桩的输出端是否出现短路,结构简单,易于实现。
Charging pile and output short circuit detection method thereof
充电桩及其输出短路的检测方法
2024-03-29
Patent
Elektronische Ressource
Chinesisch
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