Title:
STEPPING MOTOR OF PERMANENT MAGNET TYPE
Document Type and Number:
Japanese Patent JP3095846
Kind Code:
B2
Abstract:
PURPOSE: To change the characteristic of oscillation effectively and arbitrarily by adopting monofilar-winding as a winding method, and by enabling bipolar- driving with 6 lead wires to be performed besides driving with 3 lead wires, and unipolar-driving with 9 lead wires.
CONSTITUTION: The stator 10 of a stepping motor is provided with the stator poles 11-l-11-6 of 6 poles, and stator pole windings 12-1-12-6 wound on the respective poles so that the poles shifted positionally by 180° may be the same poles, and the pitch of the pole teeth of 2 poles is positionally shifted by 1/2. Then, the poles of the stator 10 are set to be 6 poles and are arranged at equal pitches, and correlation between the pole tooth pitch τs Of the stator 10 and the pole tooth pitch τR of a rotor is shown as τs=KτR (however, 0.75≤K≤1.25), and when on arbitrary poles, the center of the stator pole and the center of the rotor pole confronted with each other are permitted to coincide with each other, then an angle to be formed by the center of the stator pole and the center of the rotor pole of counter polarity, is shown as θ=60°/Z (where, the pole number of the rotor pole, Z=6n±4).
Inventors:
Hiroki Isozaki
Application Number:
JP35183691A
Publication Date:
October 10, 2000
Filing Date:
December 16, 1991
Export Citation:
Assignee:
Nippon Servo Co., Ltd.
International Classes:
H02K37/04; (IPC1-7): H02K37/04
Domestic Patent References:
| JP2151256A | ||||
| JP61157254A | ||||
| JP61138380U | ||||
| JP60111382U |
Other References:
【文献】特許2844359(JP,B2)
Attorney, Agent or Firm:
Haruya Saito (1 person outside)
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