Patent ID: 6329734
Filing Date: 2001-12-11
Classification: H02K

Abstract:
A permanent magnet-reluctance type rotating machine, comprising:an annular stator having armature windings arranged on an inner periphery of the stator;a rotor rotatably arranged inside the stator, the rotor having a rotor core;a plurality of permanent magnets disposed in the rotor core so that poles and interpoles are defined alternately in the circumferential direction of the rotor, each of the poles being positioned between a pair of permanent magnets opposing in the circumferential direction of the rotor, and each of the interpoles having a non-magnetic portion interposed between the adjoining poles in the circumferential direction of the rotor; anda pair of end plates each having a plurality of projections wherein the non-magnetic portions of the interpoles are constituted by cavities, and the rotor is interposed, at both axial ends thereof, between the pair of end plates while the projections are fitted in the cavities,wherein the pair of permanent magnets defining each pole are respectively divided into a plurality of magnet pieces in a direction parallel to the magnetizing direction of the permanent magnets; andthe divided magnet pieces are embedded in magnet holes formed in the rotor core.