Stator iron core of electric motor, manufacturing method thereof, electric motor, and compressor
US6858964B2 · kind B2 · utility
12Cited by
17References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Dec 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/021
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator iron core of an electric motor including plural magnetic pole segments. Each of the pole segments include a back yoke portion, a teeth portion projected from the back yoke portion, a connection portion provided to the back yoke portion for connecting adjacent magnetic pole segments, and a stepped-shaped notch on an outer circumference of the back yoke portion. Further, the stator iron core is circularly formed by bending the connection portions of the plural magnetic pole segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.