Patent ID: 9515528
Filing Date: 2016-12-06
CPC Classification: H02K

Claim Text:
1. A permanent magnet rotary electric machine comprising: a stator in which a plurality of teeth and a plurality of slots are formed on an inner periphery of a cylindrical stator core, and a winding wire is wound around the teeth so as to be disposed in the slots; and a rotor disposed in a hollow portion of the stator with an air gap between the rotor and the stator, wherein in the rotor, a radial projection is provided on an outer periphery of a rotor core, a number of the projection is 2n or more (n is a natural number equal to or larger than 1), and a ferrite magnet is disposed between adjacent projections, wherein a lateral of the projection perpendicular to a projecting direction of the projection and an edge of the ferrite magnet have a shape along the projecting direction, wherein a radial height of the projection is less than a thickness of middle of the ferrite magnet and greater than a thickness of the edge of the ferrite magnet, and