Patent ID: 8680737
Filing Date: 2014-03-25
Classification: H02K

Abstract:
1. A motor, comprising: a stator on whose outer circumference a plurality of magnetic poles are arranged at a first predetermined interval in a circumferential direction; and a rotor that is rotatably disposed around the stator; wherein an inner circumferential face of the rotor is provided with a magnet magnetized to have opposite polarities at a second predetermined interval in a circumferential direction, the stator is configured from a plurality of layers of plate-shaped members, each of outer circumferential ends of the plurality of magnetic poles is provided with an extended portion that is bent such that at least two plate-shaped members, including an outermost layer, of the plurality of plate-shaped members are substantially parallel to the magnet, and when an internal radius of curvature of a bent portion of a first plate-shaped member that is the closest to the magnet of the at least two plate-shaped members constituting the extended portion is taken as R