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Title:
PERMANENT MAGNET TYPE ROTARY ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JP2010213488
Kind Code:
A
Abstract:

To provide a permanent magnet-type rotary electric machine in which a driving range specified by the number of revolutions can be enlarged by changing a field magnetic flux of a rotor without generating variation of a magnetic pole.

The permanent magnet-type rotary electric machine includes: a cylindrical stator 12 to generate a rotating magnetic field in the inside thereof; and a rotor 13 having rotor cores (1311, 1321, 1331) and filed magnets (1312, 1322, 1332), which are installed inside the stator 12 and rotated in a circumferential direction of the stator 12 by the rotating magnetic field. The rotor 13 are divided into a plurality of layers ( 131 to 133) juxtaposed in a rotating shaft direction, and at least one layer out of two layers (131, 133) at both ends of the rotor can be moved in the rotating shaft direction.


Inventors:
HIRAYAMA MASAYUKI
OTO MOTOMICHI
Application Number:
JP2009058131A
Publication Date:
September 24, 2010
Filing Date:
March 11, 2009
Export Citation:
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Assignee:
YASKAWA ELECTRIC CORP
International Classes:
H02K21/14
Domestic Patent References:
JP2004215454A2004-07-29
JP2008131790A2008-06-05
JP2007259531A2007-10-04
JP2007267453A2007-10-11
JP2005253265A2005-09-15
JP2001161052A2001-06-12



 
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