Joining apparatus for coil ends of segment coils for stator
US10879776B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2019 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Aug 20, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/35
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A joining method for coil ends includes: pressing a pair of tapered portions such that a pair of first pressing jigs provided with a pair of detent portions is brought closer to the coil ends along an axial direction of the stator core, the pair of detent portions being fitted to the tapered portions; fixing axial positions of the pair of tapered portions such that the pair of detent portions is fitted to the pair of tapered portions so that the pair of tapered portions is sandwiched in a circumferential direction; fixing radial positions of the pair of tapered portions such that the pair of tapered portions is sandwiched by a pair of second pressing jigs so that the tapered portions of the pair of tapered portions make contact with each other; and welding a contacting portion where the tapered portions make contact with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.