Back to results
US 2011/0096952 A1Published application
Diaphragm, method making the same and loudspeaker using the same
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsJIA-PING WANG, LIANG LIU
Life of this patent
Estimating the term…
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.
Claims20
A diaphragm comprising:
- a carbon nanotube film structure defining a plurality of micropores therein;
- and
- an amorphous carbon structure composited with the carbon nanotube structure to form a stratiform composite structure, the amorphous carbon structure comprising a plurality of amorphous carbon particles received in the micropores.
A method for making an diaphragm, comprising:
- providing a carbon nanotube film structure;
- soaking the carbon nanotube film structure with a polymer;
- and
- carbonizing the carbon nanotube film structure infiltrated in the polymer, the polymer being carbonized to an amorphous carbon nanotube structure.
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 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.