Receiver Having Diaphragm with Improved Rigidity
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United States of America Patent
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Issued Date -
Aug 4, 2016
app pub date -
Jan 28, 2016
filing date -
Jan 30, 2015
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Abstract
A receiver having a diaphragm with improved rigidity includes a frame, a yoke coupled to the frame and forming a bottom surface, a magnet coupled to the yoke, a voice coil having a lower end positioned in an air gap of the magnet, and configured to vibrate up and down by mutual electromagnetic force as a current is applied to the voice coil, a side diaphragm configured to allow the voice coil to be attached to a lower surface of the side diaphragm, a central diaphragm attached to the center of the side diaphragm, and a protector coupled to the frame to cover the frame. The side diaphragm and the central diaphragm have protrusions protruding in mutually opposite directions, and a space is formed between the protrusions of the side diaphragm and the protrusions of the central diaphragm.
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