Title:
MANUFACTURE OF STEPPING MOTOR AND ITS YOKE
Document Type and Number:
Japanese Patent JPH1014204
Kind Code:
A
Abstract:
To provide a stepping motor which can enhance accuracy in step angle.
A stepping rotor is constituted by providing itself with a magnet rotor 3 which has numerous magnetic poles at the periphery, and stacking two pairs, of yokes 11, 12, 21, and 22 which have a plurality of pole teeth 15, 16, 25, and 26 opposite to the periphery of this magnet rotor, and providing first and second coils 5 and 6 between paired yokes 11, 12, and 21, 22, and in such a constitution, that the yokes 11, 12, 21, and 22 are made of iron nickel (Fe-Ni) alloy.
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Inventors:
SATO KOICHI
NUMAYA HIROYASU
JINUSHI KOICHI
NUMAYA HIROYASU
JINUSHI KOICHI
Application Number:
JP16132096A
Publication Date:
January 16, 1998
Filing Date:
June 21, 1996
Export Citation:
Assignee:
JAPAN ENGINE VALVE MFG
International Classes:
H02K1/02; H02K15/02; H02K37/14; (IPC1-7): H02K37/14; H02K1/02