Title:
MOTOR
Document Type and Number:
Japanese Patent JP2014241685
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a motor capable of reducing the volume of sound which is generated when a rotor is accelerated or decelerated.SOLUTION: In a motor 1, a magnet 6 is formed with five couples of S poles and N poles at equal angle intervals and in a stator core 8, three salient poles 80 are formed at equal angle intervals. Among the three salient poles 80, one salient pole 80 is a first salient pole 81 around which a first coil 76 is wound, and another salient pole 80 is a second salient pole 82 around which a second coil 77 is wound. Regarding the first salient pole 81 and the second salient pole 82 among the three salient poles 80, a radial dimension is longer than the other salient pole 83. A radial dimension of a portion where the first coil 76 is wound around the first salient pole 81 and a radial dimension of a portion where the second coil 77 is wound around the second salient pole 82 are longer than the radial dimension of the other salient pole 83. The stator core 8 is formed by laminating a plurality of magnetic plates.
Inventors:
HOSHINA TETSUO
KASAI SHIGERU
KASAI SHIGERU
Application Number:
JP2013123288A
Publication Date:
December 25, 2014
Filing Date:
June 12, 2013
Export Citation:
Assignee:
NIDEC SANKYO CORP
International Classes:
H02K37/14; H02K1/14; H02K1/27; H02K21/18; H02K37/16; H02K37/24
Domestic Patent References:
| JP2008029194A | 2008-02-07 | |||
| JPH10215560A | 1998-08-11 | |||
| JP2002354777A | 2002-12-06 | |||
| JP2008043071A | 2008-02-21 |
Foreign References:
| WO2005033792A1 | 2005-04-14 |
Attorney, Agent or Firm:
Shiro Yokozawa
Kodaira 晋
Kawai 徹
Nobuko Kawaguchi
Kodaira 晋
Kawai 徹
Nobuko Kawaguchi