Research on Grounding Technology of Door Locks of Charging pile

With the rapid development of charging piles for electric vehicles, the functions of charging piles are becoming more and more perfect, safe and reliable, and have a good user experience. Aiming at the safety requirement of the continuity of the door lock of charging pile, this paper proposes a simple, an effective and reliable equal potential grounding conduction scheme, which realizes the equal potential connection between the door lock and its accessories and the grounding row of the pile body, and realizes the grounding resistance of the door lock less than 0.1Ω. This scheme has important guiding significance for the grounding design of charging pile and the door lock of electric cabinet.