Patent ID: 11901773
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. A rotating electric machine comprising:
a stator; and
a rotor provided so as to be opposed to the stator in an axial direction, wherein
the rotor includes
an annular rotor yoke, and
a plurality of magnets provided to contact one surface of the rotor yoke so as to be arranged at predetermined intervals along a circumferential direction with magnetic poles thereof being different alternately,

the one surface includes a plurality of facing areas facing and contacting the plurality of magnets, and a non-facing area not facing the plurality of magnets,
the non-facing area includes partial areas each located between a pair of the facing areas adjacent to each other in the circumferential direction among the plurality of facing areas, and
the partial areas are formed to be recesses recessed in the axial direction relative to the facing areas, wherein
opening edges of each recess formed by edges of the pair of facing areas are located on magnetic pole surfaces of a pair of the magnets contacting the pair of facing areas among the plurality of magnets.