Sounding device

A sound-generating device and sound-generating component technology, applied in the direction of sensors, electrical components, sensor components, etc., can solve problems such as carbon nanotubes that have not yet been discovered, and achieve the effects of cost reduction, good sounding effect, and small thermal hysteresis

Active Publication Date: 2013-07-03
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon nanotubes have not been found in the prior art to be used in the acoustic field as sound-generating components

Method used

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Examples

Experimental program
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Embodiment Construction

[0015] The sound generating device of the embodiment of the technical solution will be described in detail below with reference to the accompanying drawings.

[0016] see figure 2 The first embodiment of the technical solution provides a sounding device 10 , which includes an electromagnetic wave signal input device 112 , a sounding element 114 , a supporting structure 116 and a modulating device 118 . The sound emitting element 114 is disposed on the supporting structure 116 . The support structure 116 is an optional structure for supporting and fixing the sound emitting element 114 . The electromagnetic wave signal input device 112 is corresponding to the sound emitting element 114 and arranged at intervals for providing an electromagnetic wave signal 120 . The modulation device 118 is disposed between the electromagnetic wave signal input device 112 and the sound emitting element 114 for modulating the intensity or frequency of the electromagnetic wave signal 120 . The ...

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PUM

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Abstract

The invention relates to a sounding device comprising an electromagnetic wave signal input device and a sounding element, wherein the sounding element and the electromagnetic wave signal input device are arranged at intervals; the sounding element comprises at least one carbon nano tube film, and the carbon nano tube film includes a plurality of carbon nano tubes which are parallel to each other;and the electromagnetic wave signal input device transmits an electromagnetic wave signal to the carbon nano tube film, thus the carbon nano tube film emits heat by absorbing the electromagnetic wavesignal so as to heat an air medium to send sound waves.

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. There are many types of speakers. Although they work in different ways, they generally push the surrounding air by generating mechanical vibrations, causing the air medium to fluctuate so as to realize the conversion of "electricity-force-sound". [0003] see figure 1 , ...

Claims

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Application Information

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