Title:
Permanent magnet embedded motor
Document Type and Number:
Japanese Patent JP6338139
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a permanent magnet embedded motor that is practically permissible even if a permanent magnet of weak magnetic force is incorporated.SOLUTION: A permanent magnet embedded motor includes a stator having a coil, a rotor body 2 rotatable along the stator, and having a first permanent magnet 22 that has a plurality of poles P,...,P, and arranged so that one pole faces the stator, and a first permanent magnet arrangement section 21 where the first permanent magnet 22 can be arranged, corresponding to each pole P, and a yoke 3 located on at least one end side of the rotor body 2 in the axial direction, and composed of a magnetic material at least partially, and having a second permanent magnet arrangement section 31 where the second permanent magnet 4, arranged so that one magnetic pole faces the axial direction, can be arranged, corresponding to each pole P. A space exists between the facing surfaces of the rotor body 2 and yoke 3, at a radially outward position corresponding to each pole P with respect to the axial extension position of the radial outer edge 212 at the first permanent magnet arrangement section 21.
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Inventors:
Shunya Watanabe
Tatsuya Nemoto
Taisuke Ishida
Nobuo Ariga
Tatsuya Nemoto
Taisuke Ishida
Nobuo Ariga
Application Number:
JP2014018496A
Publication Date:
June 06, 2018
Filing Date:
February 03, 2014
Export Citation:
Assignee:
Sinfonia Technology Co., Ltd.
International Classes:
H02K1/27; H02K1/22
Domestic Patent References:
| JP3106850U | ||||
| JP2008199833A | ||||
| JP2005143276A |
Attorney, Agent or Firm:
Noboru Fujimoto
Akira Kitada
Akira Kitada