Title:
STEPPING MOTOR FOR ELECTRIC CLOCK
Document Type and Number:
Japanese Patent JPH08140327
Kind Code:
A
Abstract:
PURPOSE: To improve the efficiency of a stepper motor on one hand and sensitivity for external disturbance magnetic field on the other hand in a stepper motor for electrical clock, providing a coil iron core and stator surrounding a rotor. CONSTITUTION: In order to saturate a narrow area adjacent to a rotor 3 of a stator, a nickel-iron alloy, including nickel of 34 to 40 wt.%, Mo, Nb, Cr, Mn, V of 0.1 to 8 wt.% and/or Si, Al, Ti of 0.1 to 5 wt.% and iron of the remaining part is used for the stator and a nickel-iron alloy, including nickel of at least 2 wt.%, having a saturated magnetic flux density of 1.3 T or more being used for a coil iron core 1.
Inventors:
UERUNFURIITO BEENKE
KURISUCHIAN RADEROTSUFU
KURISUCHIAN RADEROTSUFU
Application Number:
JP29795894A
Publication Date:
May 31, 1996
Filing Date:
November 07, 1994
Export Citation:
Assignee:
VACUUMSCHMELZE GMBH
International Classes:
G04C3/14; H02K1/02; H02K37/16; (IPC1-7): H02K37/16; G04C3/14; H02K1/02
Attorney, Agent or Firm:
Tomimura Kiyoshi