Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Sounding device and sounding component

A sound-emitting device and sound-emitting element technology, applied in electrical components, sensor parts, sensors, etc., can solve problems such as carbon nanotubes that have not yet been discovered, and achieve the effects of cost reduction, rapid temperature rise, and small thermal hysteresis.

Active Publication Date: 2009-12-16
TSINGHUA UNIV +1
View PDF1 Cites 12 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sounding device and sounding component
  • Sounding device and sounding component
  • Sounding device and sounding component

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] The preparation method of the carbon nanotube film in the first embodiment of the present invention mainly includes the following steps:

[0040] Step 1: providing a carbon nanotube array, preferably, the array is a super-aligned carbon nanotube array.

[0041] The carbon nanotube array provided in the embodiment of the present invention is one or more of a single-wall carbon nanotube array, a double-wall carbon nanotube array, and a multi-wall carbon nanotube array. In this embodiment, the preparation method of the super-parallel carbon nanotube array adopts the chemical vapor deposition method, and its specific steps include: (a) providing a flat substrate, which can be a P-type or N-type silicon substrate, or can be formed There is the silicon substrate of oxide layer, and the present embodiment preferably adopts the silicon substrate of 4 inches; (b) uniformly forms a catalyst layer on the substrate surface, and this catalyst layer material can be selected iron (Fe)...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a sounding device, which comprises an electromagnetic signal input device and a sounding component, wherein the sounding component comprises at least a carbon nanotube membrane including a plurality of preferred orientation arranged carbon nanotube and contacting with a medium; the electromagnetic signal input device transmits electromagnetic signal to the carbon nanotubemembrane which heats through adsorbing the electromagnetic signal, so as to heat the medium to send out sound wave. The invention also relates to a sounding component.

Description

technical field [0001] The invention relates to a sounding device and a sounding element, in particular to a sounding device and a sounding element 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 "electr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04R23/00
Inventor 姜开利肖林陈卓范守善
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com