Power capacitor with high heat dissipation performance

The utility model relates to the technical field of capacitors, in particular to a high-heat-dissipation power capacitor which comprises a capacitor body and a base, a connecting plate is connected to the capacitor body, a fixing assembly is arranged on the base, a through groove is formed in the base, and the through groove is located in the bottom of the base and penetrates through the two opposite side walls and the center of the top face of the base. A through groove is formed in the capacitor body, a cooling fan is connected into the through groove and right faces the bottom of the capacitor body, a cooling assembly is arranged at a groove opening of the through groove, a silica gel heat-conducting piece is attached to the capacitor body, U-shaped frames are connected to the capacitor body, a heat-conducting plate is connected between the two U-shaped frames, the heat-conducting plate is attached to the silica gel heat-conducting piece, and a cooling fin is connected to the heat-conducting plate. An air