Laser Welded Speaker
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United States of America Patent
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Issued Date -
Oct 9, 2014
app pub date -
Apr 3, 2013
filing date -
Apr 3, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A laser welded speaker, including a lower cover, an upper cover fitting with the lower cover, a frame arranged on the lower cover, a lower piece arranged at a bottom of the frame, a magnet arranged in the middle of the lower piece, a pole piece arranged on the magnet, a vibration plate arranged on the frame, and a voice coil fixedly arranged on the vibration plate, the frame is located over the pole piece, the vibration plate is formed of a vibration plate top arc located in the middle and a vibration plate edge located at a periphery, and the vibration plate top arc and the vibration plate edge are fixedly connected together through laser welding. The vibration plate top arc and the vibration plate edge are welded through laser, thereby improving heat-resistant performance of the vibration plate and reducing harm to a human body and environmental pollution.
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