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Title:
ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2013/175624
Kind Code:
A1
Abstract:
This electric motor is equipped with: a yoke (5) having a cylindrical section (53); two pairs of permanent magnets (7) that are provided face-to-face on the inner circumferential surface of the cylindrical section (53); and an armature (6) that is rotatably supported on the inner side in the radial direction with respect to the permanent magnets (7). At least one pair of first flat sections (61) that face with each other in the radial direction are formed on the cylindrical section (53), and the permanent magnets (7) are provided at positions clear of the first flat sections (61).

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Inventors:
KAWASHIMA Yoshichika (2681 Hirosawa-cho 1-chome, Kiryu-sh, Gunma 55, 〒3768555, JP)
TOKIZAKI Teppei (2681 Hirosawa-cho 1-chome, Kiryu-sh, Gunma 55, 〒3768555, JP)
KOJIMA Naoki (2681 Hirosawa-cho 1-chome, Kiryu-sh, Gunma 55, 〒3768555, JP)
Application Number:
JP2012/063475
Publication Date:
November 28, 2013
Filing Date:
May 25, 2012
Export Citation:
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Assignee:
MITSUBA Corporation (2681, Hirosawa-cho 1-chome Kiryu-sh, Gunma 55, 〒3768555, JP)
KAWASHIMA Yoshichika (2681 Hirosawa-cho 1-chome, Kiryu-sh, Gunma 55, 〒3768555, JP)
TOKIZAKI Teppei (2681 Hirosawa-cho 1-chome, Kiryu-sh, Gunma 55, 〒3768555, JP)
KOJIMA Naoki (2681 Hirosawa-cho 1-chome, Kiryu-sh, Gunma 55, 〒3768555, JP)
International Classes:
H02K23/04; H02K1/26; H02K13/00; H02K23/00
Foreign References:
JP2007049884A2007-02-22
JP2003311657A2003-11-05
JP2011526777A2011-10-13
JP2003047184A2003-02-14
JP2005080479A2005-03-24
JP2009055733A2009-03-12
JP2005033843A2005-02-03
JP2009112095A2009-05-21
JP2008220059A2008-09-18
Other References:
See also references of EP 2858220A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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