Three-Magnet Type Microspeaker
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United States of America Patent
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N/A
Issued Date -
Jan 8, 2015
app pub date -
Jul 1, 2014
filing date -
Jul 2, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A three-magnet type microspeaker includes: a frame; a yoke coupled to the frame to form a bottom surface; a center magnet secured to a top of the yoke; a pair of side magnets secured to the top of the yoke and disposed at both sides of the center magnet; a center top plate attached to a top of the center magnet; side top plates attached to a top of the side magnets; a voice coil having a bottom end disposed in a gap between the center magnet and the side magnets and in a gap between the center magnet and a bending part; and a diaphragm vibrating due to the voice coil. The yoke includes a bending part bent upwardly at a distance from the end of the center magnet, on a side where the side magnets are not disposed, the bending part being wider than the voice coil.
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