Voice coil support for a coil transducer motor structure
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United States of America Patent
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Mar 3, 2015
Grant Date -
May 5, 2011
app pub date -
Jul 2, 2009
filing date -
Jul 2, 2008
priority date (Note) -
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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).
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