Patent ID: 8760026
Filing Date: 2014-06-24
Classification: H02K

Abstract:
1. A rotor comprising: a rotor core the outer circumference of which faces teeth of a stator of a rotating electric machine; and first and second permanent magnets provided in each magnetic pole inside the rotor core, wherein in the cross-section of the rotor core perpendicular to the axis of rotation of the rotor, the first and second permanent magnets forming a magnetic pole are disposed such that a distance between the first and second permanent magnets increases toward the outer circumference of the rotor core, and wherein, when a first end of the first permanent magnet located on the outer circumferential side of the rotor core and the second permanent magnet side is located at a position that radially aligns with a first end of a first tooth of the teeth, a second end of the first permanent magnet located on the axis of rotation side of the rotor core and the second permanent magnet side is located at a position that radially aligns with a second end of the first tooth, and a center line defined between the first and second permanent magnets is disposed at a center position between the first tooth and an adjacent tooth in a circumferential direction.