Brushless electric machine with stator with cascaded end loops
US7687954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2006 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Mar 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K19/103
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a brushless electric machine comprising, a housing, a stationary field coil, a shaft, a bearing, a pole segment, and a stator. The stator including a core having a plurality of core slots that extend between a first and a second end of the stator core. The stator also including a winding with a plurality of phases, each of the phases having at least one conductor having a plurality of substantially straight segments disposed in the core slots. The straight segments are alternately connected at the first and the second ends of the stator core by a plurality of end loop segments. A section of at least one of the conductors including three consecutive end loop segments and two straight segments, is formed from a single continuous conductor, and one of the core slots houses a plurality of the straight segments arranged in at least one radial row.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.