Title:
STATOR YOKE FOR STEPPING MOTOR AND STEPPING MOTOR
Document Type and Number:
Japanese Patent JP2011097756
Kind Code:
A
Abstract:
To improve the coaxiality of combined stator yokes by configuring the stator yoke with split yokes to freely set the length of pole teeth.
The split yokes 3 are circularly set so that a gap 8 can be formed between the adjacent split yokes 3 to form inner yokes 2A, 2B. Then, the inner yokes 2A, 2B are fixed by laser welding 9 to portions of notches 7b of the split yokes 3 closely disposed so that the split yokes 3 are each attached back to back to form an inner yoke assembly 2.
Inventors:
NAKAMURA MANABU
FURUSAKI HIROYUKI
FURUSAKI HIROYUKI
Application Number:
JP2009249710A
Publication Date:
May 12, 2011
Filing Date:
October 30, 2009
Export Citation:
Assignee:
MINEBEA CO LTD
International Classes:
H02K1/14; H02K1/18; H02K37/14