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Audible device

A technology of sound-emitting device and sound-emitting element, which is applied in the direction of transducer shell/cabinet/support, sensor, electrical components, etc., can solve the problems such as carbon nanotubes that have not yet been found, and achieve good sound-emitting effect, small heat capacity and simple structure. Effect

Active Publication Date: 2013-02-13
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, carbon nanotubes have not been found to be used in the acoustic field in the prior art

Method used

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Experimental program
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Effect test

Embodiment Construction

[0014] The sound generating device of the embodiment of the technical solution will be described in detail below with reference to the accompanying drawings.

[0015] see figure 2 The first embodiment of the technical solution provides a sound generating device 10 , the sound generating device 10 includes a signal input device 12 , a sound generating element 14 , a support structure 16 , a first electrode 142 and a second electrode 144 . The sound emitting element 14 is disposed on the surface of the supporting structure 16 . The first electrode 142 and the second electrode 144 are arranged at two ends or the surface of the sound emitting element 14 at intervals, and are electrically connected with the sound emitting element 14 . The first electrode 142 and the second electrode 144 are electrically connected to both ends of the signal input device 12 through external wires 149 for inputting electrical signals from the signal input device 12 into the sound emitting element 14...

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Abstract

The invention relates to an audible device, which comprises a signal input device and an audible element in electric connection with two ends of the signal input device, wherein at least part of the audible element is arranged on the surface of a support structure; the audible element is a carbon nano tube thin film which comprises a plurality of mutually wound carbon nano tubes; and electrical signals are input to the audible element by the signal input device and the carbon nano tube thin film heats ambient gas media to sound acoustic waves. The audible signal can be used in soundable devices such as earphones, sound boxes and radios.

Description

technical field [0001] The invention relates to a sounding device, in particular to a sounding device based on carbon nanotubes. Background technique [0002] The sounding device generally consists of a signal input device and a sounding element. The electrical signal is input to the sound generating element through the signal input device, and then the sound is emitted. The sound emitting element in the prior art is generally a loudspeaker. The loudspeaker is an electro-acoustic device that converts electrical signals into sound signals. Specifically, the speaker can convert audio electric power signals within a certain range into audible sounds with less distortion and sufficient sound pressure level. [0003] There are many kinds of existing loudspeakers, which can be divided into electrodynamic loudspeakers, electromagnetic loudspeakers, electrostatic loudspeakers and piezoelectric loudspeakers according to their working principles. Although they work in different wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R23/00H04R1/02
Inventor 姜开利肖林陈卓范守善
Owner TSINGHUA UNIV
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