Rotating electrical machine and manufacturing method thereof
US7557483B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2005 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Nov 7, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator coil is configured of a first group of six turns of conductive wire, and a second group also of six turns, with the first group of six turns being wound on a spool, leaving a gap the same as the diameter of the conductive wire between winds. Upon completion of winding the first group, the winding is turned back, and the second group of six turns is wound in the gap, so as to be adjacent to the turns of the first group. The article is then inserted into a slot in a stator core of a stator, thereby configuring a stator coil. This provides for a rotating electrical machine and manufacturing method thereof with improved insulation resistivity regarding inverter surge voltage, and moreover high output can be obtained with a machine of comparable external dimensions with conventional machines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.