Title:
ELECTRIC MOTOR STATOR, ELECTRIC MOTOR, HERMETIC COMPRESSOR, AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/225872
Kind Code:
A1
Abstract:
This electric motor stator is provided with a stator core, a winding, an insulating film, a lower end insulator, and an upper end insulator. The stator core has a core back making contact with the insulating film outside a slot in the circumferential direction. A contact surface portion with the insulating film in the core back has a penetration groove along the central axis direction over both ends in an up-down direction. The lower end insulator has a first communication groove in communication with the penetration groove over both ends in the up-down direction. The upper end insulator has a partition surface portion for sealing the penetration of the penetration groove in the up-down direction.
Inventors:
ISHIDA RYO (JP)
Application Number:
PCT/JP2019/018380
Publication Date:
November 12, 2020
Filing Date:
May 08, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K3/34; H02K1/14; H02K9/19
Domestic Patent References:
| WO2017146117A1 | 2017-08-31 |
Foreign References:
| US20030062780A1 | 2003-04-03 | |||
| JP2014222977A | 2014-11-27 | |||
| JP2012023818A | 2012-02-02 | |||
| JP2013013192A | 2013-01-17 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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