Method of manufacturing wave winding coil for rotating electrical machine
US11646646B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2021 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Jun 18, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The continuous wires respectively have U-shaped parts and straight parts. The method includes: a transposition shape forming step of forming transposition shapes in each of which, among at least the two continuous wires belonging to an identical phase, the U-shaped part of one of the continuous wires is disposed inside the U-shaped part of the other one of the continuous wires; an inclined part forming step of causing the pairs of straight parts of the continuous wires respectively formed with the transposition shapes to be offset to form inclined parts on the continuous wires; and a folding step of folding the continuous wires formed with the inclined parts to form the turning parts and the slot disposition parts. The inclined part forming step and the folding step are alternately performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.