Rotor, method for manufacturing rotor, and motor

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11949293
SERIAL NO

17280430

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A rotor used in an outer rotor motor includes a rotor holder in a tubular shape extending along a center axis, a rotor core in a tubular shape extending in an axial direction and being fixed to a surface of the rotor holder, directed radially inward, and permanent magnets bonded to an inner circumferential surface of the rotor core and side by side in a circumferential direction. The rotor core includes projection portions projecting radially inward from the inner circumferential surface of the rotor core. One or more of the projection portions are in a gap between the permanent magnets adjacent to each other in the circumferential direction. Each of the projection portions has an axial length shorter than an axial length of each of the permanent magnets.

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Patent Owner(s)

  • NIDEC CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Isogai, Yusuke Kyoto, JP 4 2
Takemoto, Mitsuhiro Kyoto, JP 13 119
Takemoto, Shinji Kyoto, JP 60 441
Ueda, Tomoya Kyoto, JP 40 43

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