Title:
MOTOR CORE AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2015/102106
Kind Code:
A1
Abstract:
A motor core and a motor that have a stator with toothed poles shaped to reduce cogging torque and torque ripple are provided. The tip surface (12c) of a toothed pole (12) of the stator (10) is shaped so that a cross section of the tip surface (12c) along a circumferential direction is convex and curved in a direction away from the tip surface (22a) of a magnet (22) of a rotor (20) (equivalent to an outer circumferential surface of a rotor yoke (21)) facing the tip surface (12c).
Inventors:
OTA YUSUKE (JP)
WATANABE HAYAO (JP)
ENDOU SHIGERU (JP)
WATANABE HAYAO (JP)
ENDOU SHIGERU (JP)
Application Number:
PCT/JP2015/000010
Publication Date:
July 09, 2015
Filing Date:
January 05, 2015
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
H02K1/14; H02K21/14
Foreign References:
| JPH0230270U | 1990-02-26 | |||
| JP2004015880A | 2004-01-15 |
Attorney, Agent or Firm:
MORI, Tetsuya et al. (JP)
Woods Tetsuya (JP)
Woods Tetsuya (JP)
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