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Title:
PROPORTIONAL ROTARY TORQUER
Document Type and Number:
Japanese Patent JP2004312828
Kind Code:
A
Abstract:

To realize displacing of a proportional rotary torquer to an arbitrary rotary angle position in response to the amplitude and the energizing direction of an exciting current with a simple structure.

Salient poles 3a, 3b formed in a rotor core 3 are formed drawing a circular arc having a diameter at its central part different from the diameter at a boundary part on the opposed surfaces to permanent magnets 1a, 1b. An angle K between the connecting lines of a boundary end point of both the ends of the salient poles 3a, 3b and a rotating center is formed to become about 100° or more. The permanent magnets 1a, 1b are formed of circular arc surfaces having different central positions so that the thickness B of the pole boundary part becomes about 90-95% of the thickness A of the central part of the poles.


Inventors:
CHO SHIN
Application Number:
JP2003100832A
Publication Date:
November 04, 2004
Filing Date:
April 03, 2003
Export Citation:
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Assignee:
MINEBEA CO LTD
International Classes:
H02K21/26; H02K1/17; H02K23/04; H02K23/40; H02K26/00; H02K33/00; (IPC1-7): H02K33/00; H02K1/17; H02K21/26
Attorney, Agent or Firm:
Suenari Mikio



 
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