Light abnormal material housing built-in type capacitor with improved heat dissipation ability

The invention provides a light abnormal material housing built-in type capacitor with improved heat dissipation ability. The capacitor comprises capacitor elements 1, a bus bar 3 and an abnormal material housing 100. Each of the capacitor elements 1 is formed by a reeled-up dielectric film. Conductive thermal spraying faces are formed on two sides of each of the capacitor elements. The bus bar is electrically connected with two sides of the thermal spraying faces of the capacitor elements. The abnormal material housing is arranged in a combination body of the capacitor elements and the bus bar, and is formed by a plastic part and metal materials whose thermal conductivity is higher than that of the plastic material. All of or at least one part of the wall face of the abnormal material housing 100 are/is metal parts.