Relay terminals, which are formed integrally with a W-phase terminal, a V-phase terminal and a U-phase terminal provided radially outside bobbins, connect stator coils and the W-phase terminal, the V-phase terminal and the U-phase terminal. Second connection parts of the relay terminals connected to the coils are provided radially inside the W-phase terminal, the V-phase terminal and the U-phase terminal. Thus distances between the second connection part and the inner wall surface of a housing are increased to maintain insulation between the relay terminals and the housing. Thus the relay terminals are protected from breakage.