Title:
Hybrid form stepping motor
Document Type and Number:
Japanese Patent JP6045804
Kind Code:
B2
Abstract:
There is provided a hybrid stepping motor including a rotor including a plurality of rotor small teeth arranged on an outer circumferential surface thereof, and a stator including a plurality of salient poles, each including a plurality of stator small teeth. The stator small teeth have a predetermined stator tooth thickness and are arranged at a predetermined stator tooth pitch, the rotor small teeth have a predetermined rotor tooth thickness and are arranged at a predetermined rotor tooth pitch, and a facing area which is a difference between an area of attraction poles of the stator small teeth and the rotor small teeth and an area of repulsion poles thereof ranges between a maximum value in a parameter space of a dimensional ratio of the stator and/or the rotor and a threshold value of the maximum value.
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Inventors:
Naohiro Yoshida
Takeshi Sato
Takatoshi Kuwano
Takeshi Sato
Takatoshi Kuwano
Application Number:
JP2012068220A
Publication Date:
December 14, 2016
Filing Date:
March 23, 2012
Export Citation:
Assignee:
Minebea Co., Ltd.
International Classes:
H02K37/04
Domestic Patent References:
| JP11150931A | ||||
| JP4075458A | ||||
| JP2003037969A |
Foreign References:
| US6731027 | ||||
| US20080074008 |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office