Rotary electric machine having armature windings with reduced width portions
US9712012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2014 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Mar 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An armature winding includes a plurality of distributed winding bodies that are each produced by winding a single conductor wire that is insulated, jointless, and continuous, and that has a constant cross-sectional area perpendicular to a longitudinal direction, the conductor wires include first through third coil end portions that link first through fourth rectilinear portions and first through fourth rectilinear portions, and are formed such that radial widths w′ of the first through fourth rectilinear portions are wider than radial widths w of the first through third coil end portions, and first gaps are formed between radially adjacent coil end portions to allow a cooling medium to pass through the first gaps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.