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Title:
BRUSHLESS ELECTRIC MACHINE, DEVICE WITH THE SAME, AND MOVING BODY
Document Type and Number:
Japanese Patent JP2009303393
Kind Code:
A
Abstract:

To provide a technique by which electromagnetic coils can be used sufficiently and effectively.

A brushless electric machine (100) includes a first member (30U) having a plurality of first permanent magnets (32U), a second member (30L) having a plurality of second permanent magnets (32L), and a third member (10) having a plurality of electromagnetic coils (12A, 12B). The first and second members (30U, 30L) are arranged at both sides sandwiching the third member (10), and the first and second members (30U, 30L) can move relatively to the third member (10). The plurality of first permanent magnets (32U) and the plurality of second permanent magnets (32L) are arranged at the positions where the same poles face each other sandwiching the third member (10). The electromagnetic coils (12A, 12B) are arranged equally on the first member side and the second member side of the third member (10).


Inventors:
TAKEUCHI KESATOSHI
Application Number:
JP2008155373A
Publication Date:
December 24, 2009
Filing Date:
June 13, 2008
Export Citation:
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Assignee:
SEIKO EPSON CORP
International Classes:
H02K21/24; H02K1/27; H02K7/14; H02K16/02; H02K29/08; H02K41/03
Domestic Patent References:
JPS57175575U1982-11-06
JP2006266210A2006-10-05
JP2004242394A2004-08-26
JP2005143276A2005-06-02
JP2006217771A2006-08-17
JP2006025486A2006-01-26
Attorney, Agent or Firm:
特許業務法人明成国際特許事務所