Paper-honeycomb-paper sandwich multi-layer loudspeaker cone structure
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United States of America Patent
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Issued Date -
Jul 29, 2004
app pub date -
Jan 24, 2003
filing date -
Jan 24, 2003
priority date (Note) -
Abandoned
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Abstract
A paper-honeycomb-paper sandwich multi-layer loudspeaker cone structure comprises a first paper cone and a second paper cone, and a honey-comb core structure made of Nomex or aluminum material and disposed between the first and second paper cones; the honey-comb core structure is glued with the first and second paper cones by coating a resin on the surface of the interface between the first and second paper cones bonded the honeycomb core in between to constitute the multi-layer loudspeaker cone structure. The material application and improved structure of the multi-layer speaker make the entire set of loudspeaker cone light in weight and excellent in internal loss for the paper material inside, and thus significantly improving the rigidity of the loudspeaker cone and enhancing its performance.
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