Title:
HYBRID TYPE STEP MOTOR
Document Type and Number:
Japanese Patent JP3182502
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable a coil to be wound and placed easily, coil packaging density to be improved and hence efficiency to be improved and cost to be reduced, and at the same time torque/current characteristics to be improved.
SOLUTION: Coils 22 and 23 can be formed easily, the packaging density of a step motor can be improved drastically, and the cost can be reduced as compared before by winding the coils 22 and 23 around the outer periphery of stator yokes 9 and 10 provided at a fixed shaft 1 or providing the coils 22 and 23 at the inner periphery of the stator yoke. An auxiliary magnetic plate and an auxiliary magnet are provided at both sides of a stator yoke body and a magnetic circuit is formed at both edge parts, a motor with a various kinds of phases can be obtained, and at the same time, torque/current characteristics can be improved by setting one portion or all of the core to non-lamination shape.
Inventors:
Tsuneo Sugiura
Application Number:
JP14038396A
Publication Date:
July 03, 2001
Filing Date:
June 03, 1996
Export Citation:
Assignee:
Tamagawa Seiki Co., Ltd.
International Classes:
H02K37/04; H02K37/20; (IPC1-7): H02K37/04
Domestic Patent References:
| JP63136948A | ||||
| JP6059790U | ||||
| JP6034774U | ||||
| JP652380U |
Attorney, Agent or Firm:
Soga Doteru (6 people outside)
Previous Patent: STARCH BINDER AND PRODUCTION OF MOLDING BY USING SAME
Next Patent: SUPPORTING STRUCTURE OF FUEL TANK
Next Patent: SUPPORTING STRUCTURE OF FUEL TANK