Acoustic device
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United States of America Patent
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Jun 4, 2019
Grant Date -
Mar 22, 2018
app pub date -
Jul 25, 2017
filing date -
Sep 21, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An acoustic device includes a waterproof vibrating membrane and a magnetic component disposed below the waterproof vibrating membrane. The waterproof vibrating membrane includes a convex portion which protrudes toward a position of the magnetic component, or a concave portion which is recessed opposing to a position of the magnetic component. The magnetic component includes a concave pressure buffering portion corresponding to a shape of the convex portion of the waterproof vibrating membrane wherein the concave pressure buffering portion is recessed toward a side opposing to a side on which the waterproof vibrating membrane is located, or a convex pressure buffering portion corresponding to a shape of the concave portion of the waterproof vibrating membrane wherein the convex pressure buffering portion protrudes toward a side on which the waterproof vibrating membrane is located.
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