Title:
ステータ、モータおよびポンプ装置
Document Type and Number:
Japanese Patent JP6578180
Kind Code:
B2
Abstract:
Provided is a stator having a stator core which is a curled core, for which deterioration of the circularity of a circle formed by tip faces of multiple salient pole parts when viewed from an axial direction of the stator can be suppressed even when the stator core has a relatively small number of salient pole parts. In the stator, abutting surfaces 24k are formed on both ends of each of outer peripheral parts 24e constituting an outer peripheral ring section 24a of a stator core 24, and the abutting surfaces 24k of circumferentially adjoining outer peripheral parts 24e are abutted together. Angles formed by first abutting surfaces 24k1, 24k2, that is, an abutted surface 24k which is formed along a joint 24h located at one of the boundaries of the outer peripheral parts 24e in the circumferential direction, and respective center lines CL of salient pole parts 24b which connect with outer peripheral parts 24e1, 24e2 are smaller than an angle formed by each second abutted surface 24k, that is, an abutted surface 24k other than that of the first abutting surfaces 24k1, 24k2, and a center line CL of a salient pole part 24b which connects with the outer peripheral part 24e on which this second abutted surface 24k is formed.
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Inventors:
Shinichi Utsumi
Kyoji Otsubo
Kyoji Otsubo
Application Number:
JP2015193968A
Publication Date:
September 18, 2019
Filing Date:
September 30, 2015
Export Citation:
Assignee:
Nidec Sankyo Co., Ltd.
International Classes:
H02K1/18; F04D13/06; F04D29/00; H02K1/14; H02K7/14
Domestic Patent References:
JP2010288439A | ||||
JP2000350389A | ||||
JP201355718A |
Attorney, Agent or Firm:
Shin Kodaira
Shiro Yokozawa
Toru Kawai
Kawaguchi Nobuko
Shiro Yokozawa
Toru Kawai
Kawaguchi Nobuko