Patent ID: 7705494

Claim:
An electric motor comprising: an annular stator core having a first end and a second end opposite to the first end in an axial direction, and comprising first and second powder magnetic cores, the first powder magnetic core being arranged at the first end, and the second powder magnetic core being arranged at the second end, each of the powder magnetic cores including a cylindrical yoke forming an outer periphery of the stator core, a plurality of teeth main bodies disposed within the cylindrical yoke, a plurality of teeth each being connected to the yoke via a respective one of the teeth main bodies and being disposed radially inward of the yoke, and a core connecting section, the core connecting section including a projection disposed on a surface of the yoke in a region of the outer periphery and adjacent to a respective one of the teeth main bodies, and a laminated steel plate forming a single unit and arranged between the first and second powder magnetic cores, each of the powder magnetic cores being connected to the laminated steel plate via the projection fitted in a corresponding hole formed in the laminated steel plate, the hole being disposed adjacent to the respective teeth main body; and a coil wound around the stator core, the cylindrical yoke of each of the powder magnetic cores being disposed outside the coil in the axial direction.