Method for producing a coil winding for stators or rotors of electrical machines
US7703192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2005 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Apr 12, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53161
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for producing a pattern of coil windings in which each coil turn has one fillet each in two slots, and the two fillets are joined by a head portion. A plurality of coil turns are made simultaneously by winding n parallel wires with intermediate spacing onto a rotatable former. To obtain small winding heads, there is a repeating of: a laying work step where one fillet and the wire length of one head portion are laid on the former; and a displacing work step where the resultant fillets together with the adjoining first end of the respective associated head portions, and the wire guide together with the second end of these head portions, are displaced relative to one another along the former by n times the intermediate spacing of the wires. Next, the winding is removed from the former, and pressed flat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.