Patent ID: 8325947
Filing Date: 2012-12-04
Classification: H04R

Abstract:
1. A thermoacoustic device, the thermoacoustic device comprising: a thermoacoustic module, the thermoacoustic module comprises a sound wave generator, at least one first electrode and at least one second electrode; and a frame, and the frame secures the thermoacoustic module, wherein the frame comprises a first fixing frame and a second fixing frame located at opposite two sides of the thermoacoustic module, and each frame comprises a flange that perpendicularly extends from an inner edge of thereof, and each flange abuts the thermoacoustic module; wherein the sound wave generator comprises at least one carbon nanotube structure, the at least one carbon nanotube structure comprises at least one carbon nanotube film, the at least one carbon nanotube film comprises a plurality of carbon nanotubes that are substantially parallel to each other and substantially arranged along a direction extending from the at least one first electrode to the at least one second electrode, the at least one first electrode and the at least one second electrode are electrically connected to the at least one carbon nanotube structure and apply electrical signals to the at least one carbon nanotube structure, and the at least one carbon nanotube structure converts the electrical signal into heat to heat a surrounding medium to produce sound waves.