Patent ID: 8811631

Claim:
A thermoacoustic device, comprising: a plurality of insulated wires spaced from each other; a plurality of conductive wires spaced from each other, wherein the plurality of conductive wires are supported by the insulated wires; and a carbon nanotube film disposed on and electrically connected with the conductive wires, wherein the carbon nanotube film generates heat and transfers the heat to a surrounding medium causing a thermoacoustic effect, the insulated wires are substantially parallel with each other and oriented along a direction L 1 , the conductive wires are substantially parallel with each other and oriented along a direction L 2 , and an angle α between the direction L 1 and the direction L 2 is about 90 degrees, the carbon nanotube film comprises a plurality of carbon nanotubes joined end to end and orderly aligned along a same direction, each of the conductive wires is covered by the carbon nanotube film and contacts to the carbon nanotube film, the carbon nanotubes are aligned to be perpendicular to the direction L 2 .