| CPC H02K 1/2773 (2013.01) [H02K 21/16 (2013.01)] | 12 Claims |
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1. A rotor comprising:
a rotor core comprising an annular portion, a plurality of a pair of joint portions, and a plurality of magnetic pole pieces, the plurality of magnetic pole pieces extending radially from the annular portion via the plurality of the pair of joint portions;
a plurality of first magnets; and
a plurality of second magnets, wherein
the plurality of first magnets are disposed between neighboring two magnetic pole pieces of the plurality of neighboring magnetic pole pieces in a circumferential direction, the plurality of magnetic pole pieces including the neighboring two magnetic pole pieces,
the first magnet includes an inner surface on the annular portion side, an outer surface, and two side surfaces,
the neighboring two magnetic pole pieces comprise outer surfaces extending in a circumferential direction and side surfaces extending in a radial direction,
the side surfaces of the neighboring two magnetic pole pieces comprise opposite end portions on the outer surface side, the opposite end portions forming a predetermined gap in a circumferential direction,
the plurality of second magnets are disposed between the pairs of joint portions,
the first magnets contact the side surfaces of the neighboring two magnetic pole pieces in the circumferential direction,
a first gap is formed by the inner surface of the first magnet on the annular portion side and side surfaces of the pair of joint portions connecting the neighboring two magnetic pole pieces and the annular portion, and
the second magnets contact the inner surfaces of the magnetic pole pieces in the radial direction.
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