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Patent Searching and Data


Title:
ROTOR
Document Type and Number:
Japanese Patent JP2007014178
Kind Code:
A
Abstract:

To provide a rotor which improves response of a motor irrespective of a position of a magnetic polarity.

The rotor 10 includes a rotating shaft 11, a rotor back yoke 12 fixed so that it may integrally rotate around the rotating shaft, and a permanent magnet 13 which is stuck to the outer peripheral face of the rotor back yoke. The rotor back yoke 12 includes a hollow portion 12b in an axial intermediate portion, at such a portion as excluding an outer periphery 12c in contact with the permanent magnet 13. A magnetic path width W1 of the outer periphery 12c is constituted to have a dimension which does not cause saturation of magnetic flux.


Inventors:
MIYATA DAISUKE
ISHIKAWA TATSUYA
Application Number:
JP2005000195319
Publication Date:
January 18, 2007
Filing Date:
July 04, 2005
Export Citation:
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Assignee:
AISIN SEIKI
International Classes:
H02K1/22; H02K1/27; H02K1/28
Attorney, Agent or Firm:
恩田 博宣
恩田 誠