At present, the structure and location of the charging interface of the electric vehicle often seen on the market are mostly based on the design concept of the refueling port of the fuel tank of the fuel vehicle, and the interface is set in the interior of the cabin with a door lock, and the cabin door is opened when it is necessary to charge, and the charging plug is connected to charge.
Due to the large size of electric vehicles, charging is mostly carried out in the open air environment, which will inevitably encounter two problems, one is the waterproof problem of rainy day charging, and the other is that during the charging process, the plug is man-made or unintentional damage caused by falling off. In order to effectively avoid the above problems in electric vehicle charging plugs, electric vehicle manufacturers have made certain technical modifications in the design to prevent the above problems from occurring in the charging process. For example, in view of the waterproof problem, the manufacturer will design the charging hole into a recessed type, and install a safety protection door to the charging hole, and the materials used around the charging hole are insulated; In response to the falling off of the charging plug, the manufacturer has made technical improvements to the charging plug and interface, making the charging box and charging card the same as the lock and key, requiring authorization to be used, which greatly improves the safety of the electric vehicle charging plug.
