Electromagnetic speaker
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United States of America Patent
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Nov 14, 2017
Issued Date -
N/A
app pub date -
Aug 17, 2015
filing date -
Feb 2, 2015
priority date (Note) -
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Abstract
An electromagnetic speaker is disclosed and includes a frame having an elongated axis, a magnet magnetized along a radial direction and received in the frame, a voice coil fixed relatively to the frame and surrounding the magnet, a first elastic plate suspending the magnet in the frame, and a vibrating plate driven by the magnet to move along the elongated axis of the frame. By virtue of the configuration mentioned above, the electromagnetic speaker has a small form with a reduced height. Further, greater driving force is generated by the magnet driving the vibrating plate.
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