Batteries of electric vehicle power pencil waterproof construction

The utility model discloses a batteries of electric vehicle power pencil waterproof construction, including the battery package, set up aviation socket and power pencil at battery package lateral wall, the end connection of power pencil have be used for with the circular connector that aviation socket pegged graft, a serial communication port, the circular connector overcoat is equipped with a cylindric waterproof gum cover, the one end tip that waterproof gum cover deviates from the power pencil inwards extends waterproof boss of annular elasticity of formation along radial orientation, the bore diameter of waterproof boss is greater than aviation socket's external diameter, and be less than circular connector's external diameter, the thickness of waterproof boss and circular connector's hole degree of depth sum are greater than aviation socket's length. The utility model has the advantages of simple structure, be favorable to reducing whole car manufacturing cost, improve the product uniformity, the working efficiency increase can be facilitated. Life is longer, and convenient to detach etc. A bit.