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Title:
MAGNETIZATION OF NON-MAGNETIZED PERMANENT MAGNET SEGMENT IN ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JP2011087458
Kind Code:
A
Abstract:

To provide a method for magnetizing a rotor of an electric machine.

The method includes assembling an array of non-magnetized anisotropic permanent magnet segments 19 around a rotor spindle 18 encased in a metallic ring. The method also includes determining multiple optimal magnetization orientation directions of the non-magnetized anisotropic permanent magnet segments 19. Further, the method includes positioning the assembled non-magnetized anisotropic permanent magnet segments 19 around the rotor spindle 18 such that the optimal magnetization orientation directions of the non-magnetized anisotropic permanent magnet segments 19 are aligned with multiple flux lines produced by a magnetization fixture 12. Finally, the method includes energizing the magnetization fixture 12 for magnetizing the non-magnetized anisotropic permanent magnet segments 19 via a pulse direct current for an optimal duration of the pulse.


Inventors:
STEPHENS CHARLES MICHAEL
CONRAD ROMAN WIEBER
GALIOTO STEVEN JOSEPH
CARL JR RALPH JAMES
Application Number:
JP2010233178A
Publication Date:
April 28, 2011
Filing Date:
October 18, 2010
Export Citation:
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Assignee:
GEN ELECTRIC
International Classes:
H02K15/03; H01F13/00
Domestic Patent References:
JP2006288193A2006-10-19
JPH07247977A1995-09-26
JP2003199272A2003-07-11
JP2007079171A2007-03-29
JPH10127016A1998-05-15
JP2006066801A2006-03-09
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa



 
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