Moving coil transducers using multiple-stranded coils
US4413162A · kind A · utility
8Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1982 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | May 28, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A moving coil transducer such as a loudspeaker has its coil formed of multiple strand or litz wire. The structure includes a form having multiple turns of the stranded wire thereon, and the leads or ends of the stranded wire forming the coil extend continuously from the moving coil structure to attachment or terminal means carried on some portion of a fixed structure associated with the moving coil. The multiple strand wire is twisted to a predetermined lay throughout its length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.