The charging gun not only connects the electric vehicle with the charging pile, but also binds the user’s safety when charging. As an excellent enterprise of charging gun, it should not only make a charging gun with good charging performance, but also make an absolutely safe charging gun. The charging gun should not only be safe and waterproof in terms of materials, but also be durable. At the same time, it should also have excellent insulation, flame retardancy, high temperature resistance and other properties. Before it is put into production and application, it should be tested continuously, It can be put into use only after all performances are qualified! A good charging gun should be not only well selected, but also well designed. The design of the handle should conform to the principle of human mechanics. In this way, it will be very convenient to use. It should have a temperature monitoring function and a locking mechanism, which can fully ensure the safety of charging.