Voice coil support for a coil transducer motor structure
US8971564B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 2, 2009 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jun 26, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a voice coil support (21) for a coil transducer motor structure (10) having a first surface (26) towards one end and a second surface (22) towards the other end along an axis of displacement Z, the voice coil support being adapted to receive at least one coil (22H, 22L) wound therearound an outer surface (27) arranged in use for displacing the voice coil support (21) along its axis of displacement Z, as a current is driven through the coils (22H, 22L) when the voice coil support (21) is placed in a magnetic field, characterized in that the voice coil support (21) comprises a material adapted to prevent airflow communication between at least the first surface (26) and the second surface (22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.