Patent ID: 6794784
Filing Date: 2004-09-21
Classification: H02K

Abstract:
A permanent magnet reluctance motor comprising:a stator having an armature coil; a rotor configured for providing magnetic irregularities in a circumferential direction wherein the rotor includes permanent magnets in a plurality of permanent magnet embedding holes within a rotor core wherein a magnetic flux of an armature passing through between adjacent magnetic poles is canceled, and wherein the rotor further includes non-magnetic regions on a circumferential side of said permanent magnets between said magnetic poles; and a plurality of projections configured to fix positional location of said permanent magnets, the plurality of projections configured to project into said permanent magnet embedding holes within said core of said rotor, at least one of the plurality of projections having a substantially planar surface portion configured to planarly contact a length of at least one side of the permanent magnet, the length being bound by an edge of the permanent magnet.