Forming self-healing insulation for magnet wire
US8448334B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2009 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Jul 14, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5187
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process for remediating the insulating properties of magnet wire insulation is described. Magnet wire, used in electric motors and other electrical devices, comprises an electrically-conductive core covered by a thin insulating layer. The insulating layer may be damaged or compromised during manufacture or service. A process for incorporating polymerizable materials, sequestered in microcapsules, within the insulating layer is described. When the insulating layer is subjected to conditions sufficient to compromise its insulating character, the microcapsules fracture and release their contents which then polymerize and re-establish the insulating properties of the layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.