Moving iron sounding device
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United States of America Patent
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Nov 29, 2016
Grant Date -
Jun 9, 2016
app pub date -
Aug 31, 2015
filing date -
Dec 3, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A moving iron sounding device includes a casing, a diaphragm sounding system, and a magnetic circuit system. The magnetic circuit system includes a dual-rectangle-shaped magnetic circuit, an inductance coil, and an armature. The diaphragm sounding system includes a support ring and a composite diaphragm. The composite diaphragm includes a diaphragm sheet and a metal sheet. One end of the metal sheet is welded to the vibration portion through a connecting arm, and another end of the metal sheet is connected to the support ring. The present invention achieves a stable connection of the diaphragm sounding system and the magnetic circuit system and ensures the quality of the product. During the process of assembly, the adhesive won't be spilled on the diaphragm.
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