Rotor wedges with eddy current inhibitors
US10720809B2 · kind B2 · utility
1Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2017 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Feb 14, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K19/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wedge for securing windings in a slot in the rotor poles of a rotor core of an electrical machine includes an elongate wedge body extending in an axial direction along a longitudinal axis. The wedge body includes layers perpendicular to the axial direction. The layers vary in electrical conductivity from layer to layer to inhibit eddy currents within the wedge body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.