Title:
モータ
Document Type and Number:
Japanese Patent JP6429115
Kind Code:
B2
Abstract:
A motor includes a stationary unit and a rotary unit arranged to rotate with respect to the stationary unit about a center axis extending in an up-down direction. The rotary unit includes a substantially cylindrical rotor holder, a plurality of magnets disposed radially inward of the rotor holder and arranged along a circumferential direction, and a non-magnetic magnet holder fixed to an inner circumferential surface of the rotor holder and arranged to hold the magnets. The magnet holder includes a plurality of pillars extending in the up-down direction and arranged to position the magnets in the circumferential direction, and a first ring and a second ring arranged to interconnect the pillars at positions spaced apart in the up-down direction. The first ring is positioned radially outward of the second ring, and the second ring is positioned radially inward of outer circumferential surfaces of the pillars.
Inventors:
Tadayuki Kanaya
Kazuya Kitachi
Kumiko Arima
Shota Ikeno
Kazuya Kitachi
Kumiko Arima
Shota Ikeno
Application Number:
JP2014261843A
Publication Date:
November 28, 2018
Filing Date:
December 25, 2014
Export Citation:
Assignee:
Nidec Corporation
International Classes:
H02K1/27
Domestic Patent References:
| JP2014217161A | ||||
| JP59135084U | ||||
| JP2006060965A | ||||
| JP2010246346A | ||||
| JP2009213259A |
Foreign References:
| US3828212 |
Attorney, Agent or Firm:
Satoshi Otsuki