Method of making cascaded multilayer stator winding with interleaved transitions
US7269888B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2004 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Nov 10, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49071
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for making a stator assembly includes forming several continuous conductors with generally-coplanar parallel-spaced straight segments interconnected by end loop segments, as by winding each of several conductors on a peg board, and then pressing the conductors to form either one, two, or three generally-orthogonal “jogs” in a given end loop segment. The conductors are interpositioned with their straight segments staggered and with a first leg of each subsequent conductor's end loop segments generally overlying a second leg of the immediately-prior conductor's end loop segments, except for the two end loop segments following the first conductor's “nth” straight segment, and multiples thereof, where the stacking order is reversed (“n” being equal to the number of stator core slots divided by the number of conductors that will form a given winding layer). The resulting preform is inserted into the core slots over multiple revolutions to thereby obtain a multilayer cascaded stator winding with interleaved transitions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.