Title:
MOTOR AND COMPRESSOR PROVIDED THEREWITH
Document Type and Number:
WIPO Patent Application WO/2020/017625
Kind Code:
A1
Abstract:
This motor is provided with a rotor that rotates about a central axis extending in the up/down direction, a stator that faces opposite the rotor in the radial direction with a gap therebetween, and a cylindrical case in the interior of which the rotor and the stator are located. The stator includes: a plurality of core pieces having core back parts that are arranged annularly and extend along the circumferential direction and tooth parts that extend in the radial direction from the core back parts; and at least one annular ring member that is mounted onto an outer peripheral surface or an inner peripheral surface of the core back parts. The core pieces and the ring member(s) are steel sheet stacks formed of a plurality of magnetic steel sheets which are stacked together. The stator is fixed to an inner peripheral surface of the case via the ring member(s).
Inventors:
KITAGAKI HIROSHI (JP)
HONDA TAKESHI (JP)
KAWASHIMA SHOTA (JP)
HONDA TAKESHI (JP)
KAWASHIMA SHOTA (JP)
Application Number:
PCT/JP2019/028413
Publication Date:
January 23, 2020
Filing Date:
July 19, 2019
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K1/12; H02K1/18
Foreign References:
| JP2009136101A | 2009-06-18 | |||
| JP2001028871A | 2001-01-30 | |||
| JP2007531485A | 2007-11-01 | |||
| JP2016220490A | 2016-12-22 | |||
| JP2001304123A | 2001-10-31 | |||
| JP2015082936A | 2015-04-27 | |||
| JP2014050188A | 2014-03-17 | |||
| JP2004343939A | 2004-12-02 |
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