Title:
ステッピングモータ、及びステッピングモータのステータ製造方法
Document Type and Number:
Japanese Patent JP6869666
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a stepping motor 100 that can efficiently induce a magnetic flux generated from a rotor 101 to a first coil 103a and a second coil 103b, and that has a high yield.SOLUTION: A stepping motor comprises a stator 102. In the stator 102, at an outer periphery of a rotor hole 1020, a band-like first non-magnetic body ra is provided so as to separate a first magnetic pole part 1021a and a third magnetic pole part 1021c from each other, and a band-like second non-magnetic body rb is provided so as to separate a second magnetic pole part 1021b and the third magnetic pole part 1021c from each other. On an extended line at an opposite side to the rotor hole 1020, of the first non-magnetic body ra, no stator 120 is provided up to a distance at least three times a thickness of the stator 102. On an extended line at an opposite side to the rotor hole 1020, of the second non-magnetic body 1021b, no stator 102 is provided up to a distance at least three times the thickness of the stator 102.SELECTED DRAWING: Figure 2
Inventors:
Toshinari Maeda
Toshiaki Fukushima
Yu Takyo
Daisuke Iri
Toshiaki Fukushima
Yu Takyo
Daisuke Iri
Application Number:
JP2016159242A
Publication Date:
May 12, 2021
Filing Date:
August 15, 2016
Export Citation:
Assignee:
CITIZEN WATCH CO.,LTD.
International Classes:
H02K37/16; G04C3/14; H02K37/24
Domestic Patent References:
| JP6334707B2 | ||||
| JP2016136830A | ||||
| JP6393774U | ||||
| JP56141581A | ||||
| JP59136060A |
Foreign References:
| WO2016104660A1 |
Attorney, Agent or Firm:
Haruka International Patent Office