Rotary electrical device having particular coil support structure
US7939977B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2007 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | May 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/51
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for a rotary electrical device to be arranged to face to a stator, comprises a rotor iron core extending axially and including a plurality of slots arranged with a predetermined circumferential interval, a rotor coil contained by the slots, a coil support member of electrically insulating property arranged between parts of the rotor coil at an axial end of the rotor coil, and a retaining ring covering the coil support member and the axial end of the rotor coil, the coil support member has two fitted portions and a connecting portion connecting the fitted portions to each other to form H-shape of cross section and to form a space between the rotor coil and each of opposite sides of the connecting portion, and the coil support member further has a communicating path communicating to the spaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.