Electrodynamic-transducer magnetic motor
US8861778B2 · kind B2 · utility
0Cited by
4References
12Claims
0Family size
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Inventors
Key dates
| Filing date | Feb 9, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Apr 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosure relates to an electrodynamic-transducer magnetic motor device (10) having a moving coil comprising a magnetic circuit consisting of a tied angular magnet (11), characterized in that said tied annular magnet has a hollow annular structure, said hollow annular structure comprising an annular cavity (12) connected to an upper portion (13) of an external surface (14) of said hollow annular structure by a first annular channel (15) forming a first gap in which a first winding (17) of the moving coil can move.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.