Poly-phase electromagnetic device having an improved conductor winding arrangement
US7521834B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 13, 2003 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Apr 3, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A poly-phase electromagnetic device having n winding phases (n>2) wherein each phase is made from a single conductor strand wound in a lap form configuration. The windings are configured such that on assembly to a slotted magnetically conducive base a maximum of n−1 end turns overlapping is achieved so that the slot packing density can be optimized. The preferred configurations also enable neat and compact terminations which facilitates efficient packaging of the completed device. The windings are made either from discrete bobbins which are electrically interconnected upon assembly to the base, or alternatively from strings of continuously formed sub-windings. The latter process in particular enables full or partial automation of the winding and/or assembly process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.