Waterproof capacitor sealing structure

The utility model discloses a waterproof capacitor sealing structure, and relates to the technical field of capacitors. Comprising a capacitor shell, a heat-conducting unit, a capacitor body and a water-cooling unit. A sealing shell cover is mounted on one side of the capacitor shell through screws; the heat conduction unit is erected in the capacitor shell; the capacitor body is installed on the heat conduction unit through screws. The top of the capacitor shell is provided with a sealing ring used for penetration of a capacitor body lead. The water cooling unit is arranged between the heat conduction unit and the capacitor shell; the water cooling unit circularly circulates a cooling medium for the heat conduction unit. According to the utility model, the heat conduction unit and the water cooling unit are arranged, so that the water cooling circulation type heat dissipation effect of the capacitor body can be satisfied without arranging a traditional air cooling type heat dissipation air inlet/outlet on th