Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A thermal sounding device and an electronic device

A technology of thermal sound generation and electronic devices, which is applied to electrical components, sensors, sensor parts, etc., can solve the problems of low sound generation efficiency, achieve the effects of simple structure, low heat capacity, and cost reduction

Active Publication Date: 2012-10-10
TSINGHUA UNIV +1
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the material itself, the thermoacoustic device using the platinum sheet as the thermoacoustic element can only produce a sound frequency up to 4 kHz, and the sound efficiency is low

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
  • A thermal sounding device and an electronic device
  • A thermal sounding device and an electronic device
  • A thermal sounding device and an electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The thermoacoustic device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following embodiments, the same components are denoted by the same reference numerals. The schematic diagrams involved in the embodiments of the present invention are for better description of the embodiments, and have no limiting effect on the embodiments themselves.

[0035] see figure 1 and figure 2 , The first embodiment of the present invention provides a thermoacoustic device 10 , the thermoacoustic device 10 includes a thermoacoustic element 102 and a heating device 104 .

[0036] The heating device 104 is used to provide energy to the thermoacoustic element 102 to make the thermoacoustic element 102 generate heat and emit sound. In this embodiment, the heating device 104 provides electric energy to the thermoacoustic element, so that the thermoacoustic element 102 generates heat under the action ...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

A thermal sounding device comprises a substrate with a network structure, a thermal sounding element arranged on the surface of the substrate, and a heating device used for providing energy to the thermal sounding element to enable the thermal sounding element to produce heat, wherein the substrate comprises at least one lineage structure, the at least one lineage structure comprises a carbon nano tube lineage structure and an insulation layer positioned on the surface of the carbon nano tube lineage structure, the thermal sounding element comprises a composite film, and the composite film comprises at least one carbon nano tube layer and at least one graphene film with the carbon nano tube layer and the graphene film being stacked over each other. The invention further provides an electronic device using the thermal sounding device.

Description

technical field [0001] The invention relates to a thermoacoustic device, in particular to a graphene-based thermoacoustic device and an electronic device using the thermoacoustic device. Background technique [0002] The thermoacoustic device generally consists of a signal input device and a sound-generating element, and a signal is input to the sound-generating element through the signal input device to emit sound. The thermoacoustic device is a kind of sound-generating device, which is based on the thermoacoustic effect, please refer to the literature "The Thermophone", EDWARD C. WENTE, Vol.XIX, No.4, p333-345 and "On Some Thermal Effects of Electric Currents", William Henry Preece, Proceedings of the Royal Society of London, Vol.30, p408-411 (1879-1881). It discloses a thermoacoustic device, and the thermoacoustic device realizes sound generation by feeding an alternating current into a conductor. The conductor has a small heat capacity (Heat capacity), thin thickness, ...

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 姜开利林晓阳肖林范守善
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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