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Title:
ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2002/031947
Kind Code:
A1
Abstract:
An electric motor, comprising a rotor body having multi-layer slits disposed in radial direction, wherein a permanent magnet (6) is buried only in a part of the slits (5) among the multi-layer slits to drivingly rotate the motor by a magnet torque and a reluctance torque, whereby, because not only the reluctance torque, but also the magnet torque is utilized, a large driving torque not provided merely by the reluctance torque can be generated.

Inventors:
MURAKAMI HIROSHI (JP)
SADANAGA YUICHIRO (JP)
IKKAI YASUFUMI (JP)
KISHIBE TARO (JP)
KAWANO SHINICHIRO (JP)
TAMAMURA TOSHIYUKI (JP)
KADO NARUHIKO (JP)
OKADA YUKIHIRO (JP)
Application Number:
PCT/JP2001/008629
Publication Date:
April 18, 2002
Filing Date:
October 01, 2001
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
MURAKAMI HIROSHI (JP)
SADANAGA YUICHIRO (JP)
IKKAI YASUFUMI (JP)
KISHIBE TARO (JP)
KAWANO SHINICHIRO (JP)
TAMAMURA TOSHIYUKI (JP)
KADO NARUHIKO (JP)
OKADA YUKIHIRO (JP)
International Classes:
H02K1/27; H02K21/14; H02K21/16; H02K19/10; (IPC1-7): H02K1/27; H02K19/10; H02K21/14
Foreign References:
JPH10150754A1998-06-02
US5903080A1999-05-11
US4924130A1990-05-08
JP2000208313A2000-07-28
JPH09168247A1997-06-24
JPH1189193A1999-03-30
JP2000253608A2000-09-14
Attorney, Agent or Firm:
Iwahashi, Fumio c/o Matsushita Electric Industrial Co. (Ltd. 1006 Oaza Kadoma Kadoma-shi, Osaka, JP)
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