Patent ID: 8304951
Filing Date: 2012-11-06
Classification: H02K

Abstract:
1. A dynamoelectric machine comprising: a rotor having: a stator that is disposed so as to surround an outer circumference of said rotor so as to have a predetermined air gap interposed, wherein: a magnet holder is disposed so as to span over said trough portions by being connected to each of consecutive yoke portions at locations above a curved bottom of said trough portions, an inner part of the magnet holder having a trapezoidal cross section perpendicular to a longitudinal direction of the magnet holder such that two inner side surfaces of the magnet holder are inclined toward each other, and a permanent magnet is held in said magnet holder so as to face an inner circumferential surface near a tip end of said claw-shaped magnetic pole portions so as to have a predetermined clearance.