Title:
A rotor, a motor, and a manufacturing method of a rotor
Document Type and Number:
Japanese Patent JP6135967
Kind Code:
B2
Abstract:
A rotor includes a laminated core (51A), a plurality of magnets (52A), and a resin portion (53A). The laminated core (51A) includes a plurality of outer core portions (62A) arranged in a circumferential direction. The plurality of outer core portions (62A) and the plurality of magnets (52A) are alternately arranged in the circumferential direction. In addition, the outer core portion (62A) includes a through-hole (621A) that penetrates in an axial direction. The resin portion (53A) includes a columnar portion (535A) that is disposed inside the through-hole (621 A). Accordingly, the rigidity of the resin portion (53A) is enhanced. In addition, the resin portion (53A) includes a gate mark portion (91A). At least a portion of the gate mark portion (91A) is positioned farther radially inward than the through-hole (621A).
Inventors:
Asahi Kyohei
Kenichiro Hamaishi
Kuniaki Tanaka
Susumu Terada
Kenichiro Hamaishi
Kuniaki Tanaka
Susumu Terada
Application Number:
JP2012174770A
Publication Date:
May 31, 2017
Filing Date:
August 07, 2012
Export Citation:
Assignee:
Nidec Corporation
International Classes:
H02K1/27; H02K15/03
Domestic Patent References:
| JP2010063285A | ||||
| JP2011097742A | ||||
| JP2011147323A | ||||
| JP2001238380A |
Foreign References:
| WO2012098943A1 |
Attorney, Agent or Firm:
Takami Nishida
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