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US 8,548,188 B2Granted
Diaphragm, method making the same and loudspeaker using the same
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsJia-Ping Wang, Liang Liu
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Abstract
A diaphragm includes a carbon nanotube film structure and an amorphous carbon structure composited with the carbon nanotube structure to form a stratiform composite structure. The carbon nanotube film structure defines a plurality of micropores therein. The amorphous carbon structure comprises a plurality of amorphous carbon particles received in the micropores.
Claims17
A diaphragm comprising:
- a carbon nanotube film structure defining a plurality of micropores therein;
- and
- an amorphous carbon structure composited with the carbon nanotube film structure to form a stratiform composite structure, the amorphous carbon structure comprising a plurality of amorphous carbon particles received in the micropores;
- wherein the carbon nanotube film structure comprises a plurality of carbon nanotubes combined with the amorphous carbon particles by van der Waals attractive force and covalent bonds therebetween.
1 more element
A loudspeaker comprising:
- a magnetic circuit defining a magnetic gap;
- a bobbin located in the magnetic gap;
- and
- a diaphragm engaging with the bobbin,
- wherein the diaphragm comprises a carbon nanotube film structure and an amorphous carbon structure composited with the carbon nanotube film structure to form a stratiform composite structure, the carbon nanotube film structure defines a plurality of micropores therein, and the amorphous carbon structure comprises a plurality of amorphous carbon particles received in the micropores.
2 more elements
Dependencies are inferred from the claim text.