Litz wire coil
US9842681B2 · kind B2 · utility
1Cited by
0References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2013 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Aug 12, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F38/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a litz wire coil that is configured by spirally winding a litz wire on one plane by a predetermined number of turns. The litz wire is configured by twisting together a plurality of enameled wires formed by baking an insulating film on a conducting body. Pressure shaping is performed such that the litz wire has a substantially rectangular shape in cross section, and the flatness ratio of the litz wire in cross section (long side/short side) is controlled at 1.10 to 1.60, preferably 1.20 to 1.40, more preferably 1.25 to 1.35.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.