Stator of dynamo-electric machine
US5583387A · kind A · utility
114Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1994 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Jun 13, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S174/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator of a dynamo-electric machine includes core pieces obtained by laminating iron plates divided in a circumferential direction per pole-tooth unit and having projecting and recessed engaging parts at their dividing faces, and then welding the iron plates by laser at their inner and outer peripheries. A winding part is formed around each pole-tooth unit of the core pieces. A predetermined number of the core pieces are bonded into the loop, with the projecting and recessed engaging parts engaged with each other and rigidly welded at outer peripheries of bonding faces by laser in a laminating direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.