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Title:
回転電機
Document Type and Number:
Japanese Patent JP4113353
Kind Code:
B2
Abstract:

To constitute a magnetic pole with a plurality of small permanent magnets and to improve magnetic flux distribution.

The rotating electric machine has a rotor 1 structured around a rotating shaft 2, a rotor core and permanent magnets. It is provided with a laminated rotor core 3 in which a plurality of grooves 4 for permanent magnets, a plurality of rectangular parallelepiped permanent magnets 5 which constitute the magnetic pole, and a spacer 6 which is placed between the rectangular parallelepiped permanent magnets 5 and determines positions of the rectangular parallelepiped permanent magnets 5 in order to arrange adjoining rectangular parallelepiped permanent magnets 5 in parallel in the arch. The rectangular parallelepiped permanent magnets 5 arranged in parallel is magnetized in the identical direction and more strongly as getting close to the center from the both ends.

COPYRIGHT: (C)2003,JPO


Inventors:
Liu Xiaohong
Application Number:
JP2001363885A
Publication Date:
July 09, 2008
Filing Date:
November 29, 2001
Export Citation:
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Assignee:
Sawafuji Electric Co., Ltd.
International Classes:
H02K1/18; H02K1/27; H02K1/22; H02K3/12; H02K19/10; H02K21/14
Domestic Patent References:
JP62122466U
JP11004555A
JP2001086718A
JP9149572A
JP10191585A
JP2001326118A
JP8205411A
JP2001128394A
JP2001218399A
JP11033214A
JP6070520A
Attorney, Agent or Firm:
Yutaka Morita
Yasuo Hori