Method of manufacturing a stator of a motor
US11146153B2 · kind B2 · utility
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1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Dec 5, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53143
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An arm of a coil segment having an approximate U shape is placed in a slot of a stator core, and a portion protruding from the slot is bent in a circumferential direction. An arm is bent in a direction of an arrow A, and another arm positioned at an inner side in the radial direction in relation to this arm is bent in a direction of an arrow B. The arm positioned at the outer side has at least a part of a bending inner side surface of a bent portion hardened by pressurization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.