Patent ID: 9281723
Filing Date: 2016-03-08
CPC Classification: H02K

Claim Text:
1. A rotary electric machine, comprising: a stator; and a rotor including an iron core and a plurality of permanent magnets, the iron core having a tubular connecting portion surrounding a rotating shaft and a plurality of magnetic pole portions integrally formed with the connecting portion and the permanent magnets being arranged between the magnetic pole portions, wherein the iron core includes axially-penetrated magnet accommodating air gaps formed between the magnetic pole portions at the radial outer side of the connecting portion, and the permanent magnets are installed in the respective magnet accommodating air gaps such that a radial outer surface of each of the permanent magnets makes close contact with an inner surface of each of the magnet accommodating air gaps and such that a specified gap exists between a radial inner surface of each of the permanent magnets and the connecting portion, wherein at least a portion of each of the permanent magnets includes a taper portion, a dimension of the taper portion in a direction perpendicular to a radial direction becoming smaller radially inward, and wherein the entire radial outer surface of the connecting portion between joint regions is flat, the connecting portion and the magnetic pole portions being joined at the joint regions.