Title:
STATOR AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/021656
Kind Code:
A1
Abstract:
The stator according to the present invention is a stator for rotation about a central axis. The stator is provided with: a first member having a plurality of first recess portions which include a pair of a first inner side surface and a second inner side surface between which the distance becomes narrower in the circumferential direction with respect to the central axis from one side toward the other side in the radial direction with respect to the central axis, the plurality of first recess portions being positioned in the circumferential direction at predetermined intervals; and a plurality of second members having a first protrusion extending along the first inner side surface, a second protrusion extending along the second inner side surface, and a tooth portion projecting from the first protrusion and the second protrusion toward the other side in the radial direction. The plurality of second members are provided respectively corresponding to the plurality of first recess portions.
Inventors:
SUMI SHIGEHARU (JP)
Application Number:
PCT/JP2018/022314
Publication Date:
January 31, 2019
Filing Date:
June 12, 2018
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K1/18
Foreign References:
| JP2005323429A | 2005-11-17 | |||
| JP2014204475A | 2014-10-27 | |||
| JPS5967859A | 1984-04-17 | |||
| JP2004215476A | 2004-07-29 | |||
| JPS6035929A | 1985-02-23 | |||
| US20090026875A1 | 2009-01-29 | |||
| JP2004229472A | 2004-08-12 | |||
| JPS55125045U | 1980-09-04 |
Download PDF: