Electrical apparatus covers waterproof construction of being connected with box

The utility model relates to an electrical apparatus covers waterproof construction of being connected with box. The box that has electrical components including internally mounted, the box up end is equipped with a plurality of screw holes, the box upper end is equipped with the electrical apparatus lid, the lower extreme of electrical apparatus lid is equipped with the step, the lateral wall of step is located the box inboard, the lower extreme periphery of electrical apparatus lid is equipped with a plurality of screw counter sinks, the screw counter sink runs through end face of bench, it is connected with the screw hole of box up end to be equipped with the screw in the screw counter sink, a water drainage tank has been seted up on the lateral wall of screw counter sink, water drainage tank's orientation is outside, water drainage tank is used for row ponding, be equipped with the sealing washer between the lower terminal surface of electrical apparatus lid and the up end of box. The utility model discloses the internal damage electrical part of screw counter sink longitudinal stream into boxes of effectively avoiding ponding to cover along electrical apparatus has improved the life of electrical part, add the sealing washer, improved the leakproofness to box inside electrical part greatly, the normal use life -span of further having guaranteed the electrical part.