▎ 摘　　要

NOVELTY - The application claims a direct current charging pile, belonging to the technical field of charging pile. the charging pile comprises a shell, a direct current module, a charging gun, a metering module, a driving power supply module, a main control module, a ventilation radiating device and a liquid cooling radiating device, the module is located in the shell, the shell is coated with a graphene layer; the direct current module is connected with the charging gun, the alternating current is converted into direct current to supply power for the charging gun; the metering module is connected with the main control module, calculating the charging amount to the main control module; driving the power supply module to the direct current module, the metering module and the main control module supply power; the main control module controls the operation of the charging pile; the ventilating and radiating devices are oppositely mounted at two sides of the shell to form ventilating air channels; the liquid cooling radiating device is used for radiating the charging gun, comprising an evaporator, a water pump and a liquid cooling loop; the liquid cooling loop is set on the charging gun, the water pump is used for circularly flowing the cooling liquid in the liquid cooling loop, the evaporator is used for cooling the cooling liquid. The product has high safety, good heat dissipation, so as to prolong the service life of the charging pile.