The charging gun should be equipped with protection devices such as over-voltage protection, lightning protection, output short circuit protection, leakage protection and over-current protection, and there is a leakage protector inside. If leakage occurs during standby or charging, it will trip in time to protect users. Personal safety. In the appearance design of the charging gun, necessary operating specifications and warning signs should be provided to remind users of safe operation. The material needs to have the characteristics of flame retardant, environmental protection, wear resistance, impact resistance, high oil resistance, ultraviolet resistance, high and low temperature resistance, leakage prevention, insulation, etc. Anti-leakage and insulation are very important. Before production and use, they need to be continuously tested to meet the specified standards before they can be used to ensure the safety of users. Charging gun design is a systematic project. Charging guns are divided into national standard, European standard and American standard. Different charging guns have different design requirements. In the process of charging gun design, it is necessary to design in strict accordance with the needs of users, and innovate from the aspects of shape, structure, material, man-machine, etc. to ensure the feasibility and practicability of the design and ensure the quality of the product. The design of this charging gun is inspired by the white crane. The speed at which the white crane flies is the speed of current. In terms of appearance design, the streamlined design style uses the design principle of curve as a whole. The charging gun adopts an integrated design, which conforms to the latest national standard. The shell adopts two-color injection molding, the color matching is simple, and the yellow tail line has a warning effect, reminding people to be careful when using it. The handshake part is made of soft glue, which feels comfortable and has anti-skid effect. The full-coated waterproof electromagnetic lock has a, charging is simple, fast, safe and reliable; the delicate surface treatment makes the product feel soft and comfortable, and can provide users with a good experience. This charging gun is also designed to add a charging gun to the original, becoming a double-headed charging gun. It can charge multiple electric vehicles at the same time, bringing more convenience.