Electric rotating machine
US6426578B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2001 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | May 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric rotating machine having a rotor, rotatably disposed in an inner radius side of a stator through a gap, including rotor windings contained in a plurality of slots formed in a rotor core, a slot insulation placed between the rotor winding and the slot, an insulation block placed between a wedge arranged at a peripheral side of the rotor core outward of the rotor winding of the slot and the rotor winding. At least one of the slot insulation and the insulation block is an insulation formed by filling or mixing granular and/or short-fiber insulating materials having a thermal conductivity higher than 5 W/m·K in a resin and a thermal conductivity in a thickness direction higher than 0.35 W/m·K.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.