Welded stator for electric motors
US4071787A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1976 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Jun 3, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/143
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A two part laminated stator in which a ring portion, bearing shading coils, has a pair of spaced parallel legs projecting therefrom, each leg end being adapted for a welded connection with a corepiece end, the corepiece being adapted to be inserted in an axially extending hole in a bobbin on which a coil has been wound. Each leg end and each polepiece end is shaped to have a complementary line of contact shaped for full line contact without interference as the corepiece, bearing the wound bobbin, and the leg ends are pressed together in opposite directions parallel to the line in which the legs project. The two parts and the laminations of each part are then secured together along a strip weld across the outer edge of the laminations at the outer end of the line of contact for each leg and each polepiece end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.