| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric supercharger which inhibits temperature rise of a drive circuit while inhibiting entry of foreign objects into a circuit housing.SOLUTION: In an electric supercharger 10, a circuit housing 40 has a housing wall part 41 having a shape protruding from an outer surface of a motor housing 11; and a bottom part 51 positioned at a tip of the housing wall part 41 when viewed in a protruding direction of the housing wall part 41 from an outer surface of the motor housing 11 and seals a drive circuit 55. The bottom part 51 of the circuit housing 40 functions as a heat radiation part facing the outer side of the circuit housing 40. The drive circuit 55 is thermally coupled to an inner surface 51a facing the inner side of the circuit housing 40 in the bottom part 51.SELECTED DRAWING: Figure 1 |
