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Title:
MOTOR
Document Type and Number:
WIPO Patent Application WO/2005/074099
Kind Code:
A1
Abstract:
A motor, comprising teeth having teeth (4) on which windings are wound and teeth (5) on which the windings are not wound, wherein the teeth (4) on which the windings (6) are wound and the teeth (5) on which the windings (6) are not wound are disposed alternately each other, and the teeth (5) on which the windings (6) are not wound are formed in projected shapes (7) in which the widths of (e) of the teeth at the tip part are smaller than the widths (d) of the teeth (5). Thus, cogging torque and torque ripple can be reduced.

Inventors:
Kobayashi, Manabu c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
Ito, Hidenobu c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
Takamune, Kouichi c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
Naka, Kouki c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
Ito, Kazumasa c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
Application Number:
PCT/JP2004/000844
Publication Date:
August 11, 2005
Filing Date:
January 29, 2004
Export Citation:
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Assignee:
MITSUBISHI DENKI KABUSHIKI KAISHA (2-3 Marunouchi 2-Chome, Chiyoda-ku, Tokyo 10, 10083, JP)
Kobayashi, Manabu c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
Ito, Hidenobu c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
Takamune, Kouichi c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
Naka, Kouki c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
Ito, Kazumasa c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
International Classes:
H02K1/08; H02K1/14; H02K29/03; (IPC1-7): H02K1/14
Foreign References:
JP2002064949A
JPS56166738U
JPS56174932U
Attorney, Agent or Firm:
Miyata, Kaneo c/o Mitsubishi Denki Kabushiki Kaisha (2-3 Marunouchi 2-Chom, Chiyoda-ku Tokyo 10, 10083, JP)
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