Method of manufacturing laminated stator core and laminated stator core manufactured by the method
US9225228B2 · kind B2 · utility
2Cited by
1References
10Claims
0Family size
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Inventors
Key dates
| Filing date | Feb 2, 2012 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Dec 18, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing a laminated stator core and a laminated stator core manufactured by the method, the method capable of forming a recess 21 over one or both of (a) a lateral portion of an ear piece C of the stator core sheet A to be formed adjacent to the stator core sheet B and (b) a peripheral portion of the annular yoke piece D continuing to the lateral portion, the peripheral portion beside the ear piece C; fitting one ear piece E of the stator core sheet B with a gap in the recess 21; and thereby improving a material yield when the stator core sheets 13 are formed from the strip material 14.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.