SPEAKER UNIT FOR EARPHONE
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United States of America Patent
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Issued Date -
Oct 17, 2024
app pub date -
Apr 8, 2024
filing date -
Apr 8, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
A speaker unit for an earphone includes a frame including an internal accommodation space; a low-frequency diaphragm; a low-frequency voice coil of a tubular structure connected to the low-frequency diaphragm; a center magnet disposed at the center of the low-frequency voice coil; a first ring-shaped magnet disposed between the center magnet and the low-frequency voice coil; a second ring-shaped magnet disposed on an outer side of the low-frequency voice coil; a high-frequency voice coil disposed on an outer side of the center magnet and including a tubular structure; a flexible substrate disposed on an outer side of the high-frequency voice coil; a coil fixing plate having a plate-shaped structure with one side being coupled to the high-frequency voice coil and another side being coupled to the flexible substrate; and a high-frequency diaphragm disposed above the coil fixing plate and configured to vibrate.
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