The integrated DC charging pile of DHDC series adopts floor type design, with simple and generous appearance, stable frame design, complete protection functions, and emergency stop protection, overvoltage and undervoltage protection, overcurrent protection, insulation fault protection, battery reverse connection protection and other mechanisms; Automatic power switching of single and double guns; It is applicable to various types of charging places such as logistics park charging stations, high-speed service areas, public parking lots, etc; The overall power of the equipment is flexibly configured according to the module, and the output power is automatically adjusted with the vehicle load. It is a high-efficiency DC charging device that provides electric energy supply for new energy vehicles with on-board charger or DC charging port in accordance with the national standard.