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Title:
PERMANENT MAGNET TYPE SYNCHRONIZATION MOTOR AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2005/025037
Kind Code:
A1
Abstract:
For example, in a combination of: a rotor (1) having 8 magnetic poles; and a stator (2) having 12 slots and having permeance pulsation components of the same number as the number of the poles of the rotor (1) generating cogging torque on the substantially sinusoidal wave, pressure is applied from the outer circumference of the stator toward the inside by pressurizing parts (3) arranged at predetermined four positions, thereby canceling the cogging torque pulsation components of the same number as the number of poles of the rotor (1).

Inventors:
TOIDE YUKARI (JP)
DAIKOKU AKIHIRO (JP)
NAKANO MASATSUGU (JP)
ARITA HIDEAKI (JP)
YAMAGUCHI SHINICHI (JP)
HAZEYAMA MORIYUKI (JP)
YOSHIOKA TAKASHI (JP)
KIKUCHI TOMOHIRO (JP)
HAYAMI KATSUMI (JP)
MIYAZAKI TAKASHI (JP)
Application Number:
PCT/JP2004/012289
Publication Date:
March 17, 2005
Filing Date:
August 26, 2004
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
TOIDE YUKARI (JP)
DAIKOKU AKIHIRO (JP)
NAKANO MASATSUGU (JP)
ARITA HIDEAKI (JP)
YAMAGUCHI SHINICHI (JP)
HAZEYAMA MORIYUKI (JP)
YOSHIOKA TAKASHI (JP)
KIKUCHI TOMOHIRO (JP)
HAYAMI KATSUMI (JP)
MIYAZAKI TAKASHI (JP)
International Classes:
H02K1/18; H02K29/03; (IPC1-7): H02K21/00; H02K5/00; H02K15/02
Foreign References:
JP2000217284A2000-08-04
JP2001218429A2001-08-10
Other References:
DAIKOKU A. ET AL.: "RM-03-74 frame no oryoku eikyo o koryo shita PM motor no cogging torque kaiseki", THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN KENKYUKAI SHIRYO, 6 September 2003 (2003-09-06), pages 13 - 18, XP002985791
DAIKOKU A. ET AL.: "RM-03-152 gaibu oryoku inkai no PM motor no cogging torque ni kansuru jikken kento", THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN KENKYUKAI SHIRYO, 28 November 2003 (2003-11-28), pages 13 - 18, XP002985792
Attorney, Agent or Firm:
Oiwa, Masuo (Minamitsukaguchi-cho 2-chome Amagasaki-Shi, Hyogo, JP)
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