Coupling mechanism is optimized to car sun visor board light pencil

The utility model relates to an automobile spare and accessory part technical field, concretely relates to coupling mechanism is optimized to car sun visor board light pencil. Punching press backplateand the symmetrical lighting lamp group spare of locating the punching press backplate left and right sides including the sunshading board, be equipped with the intercommunication recess that is linked together lighting lamp circuit and vehicle bus way on the punching press backplate, the intercommunication recess bilateral symmetry set up, and is corresponding with the light of controlling the side respectively, the intercommunication recess respectively with the lighting lamp circuit electric connection of corresponding side, be equipped with the cusp edge of a knife on the intercommunication recess. The utility model discloses a design intercommunication groove structure on the punching press backplate of sunshading board is linked together lighting lamp circuit with the vehicle bus way, through in the interco