Patent ID: 8058761
Filing Date: 2011-11-15
Classification: H02K

Abstract:
1. A rotating electrical machine comprising: a stator; and a rotor, wherein the rotor includes wherein the segment core pieces are connected to each other in a band-like shape by connecting portions, each segment core piece having a plurality of permanent magnet holders including permanent-magnet holding projections that are arranged with intervals therebetween at an outer side of the segment core piece in a radial direction, wherein the segment core pieces that are continuous to each other are bent at the connecting portions and are laminated such that the segment core pieces are helically wound while circumferential edges of the segment core pieces are aligned, wherein the permanent-magnet holding projections provided at end portions of adjacent segment core pieces that face each other in a circumferential direction have the connecting portions at the centers of the permanent-magnet holding projections, and wherein the permanent-magnet holding projections included in the segment core pieces that are adjacent to the permanent-magnet holding projections having the connecting portions in a thickness direction, which is parallel to an axial direction of the helix, are provided with receiving portions for receiving bulging portions in the axial direction where the bulging portions bulge in the thickness direction when the connecting portions are bent.