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Thermoacoustic device

A technology of thermally induced sound and thermally induced sound components, which is applied in the direction of sensors, electrical components, sensor components, etc., can solve problems such as safety voltages that are not involved, and achieve the effect of being conducive to commercialization

Active Publication Date: 2013-08-21
BEIJING FUNATE INNOVATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this document only discloses that the thermoacoustic element can produce sound under laboratory conditions, and does not involve the issue of safe voltage

Method used

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Embodiment Construction

[0017] Specific embodiments of the thermoacoustic device of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] see figure 1 and figure 2 , the embodiment of the present invention provides a thermoacoustic device 100 . The thermoacoustic device 100 includes a thermoacoustic element 110 , a plurality of first electrodes 104 and a plurality of second electrodes 108 are alternately and spaced apart and electrically connected to the thermoacoustic element 110 . Wherein, in this embodiment, the intervals between adjacent first electrodes 104 are equal, and the intervals between adjacent second electrodes 108 are equal. The distance between each first electrode 104 and its two adjacent second electrodes 108 is equal. Likewise, the distance between each second electrode 108 and its two adjacent first electrodes is equal. The first electrode 104 and the second electrode 108 conduct the entire thermoacoustic element 110 . ...

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Abstract

The invention aims to provide a thermoacoustic device, which can normally work and sound under a safe voltage and comprises a thermoacoustic element, a plurality of mutually and electrically connected first electrodes and a plurality of mutually and electrically connected second electrodes. The first electrodes and the second electrodes are mutually arranged at intervals and are electrically connected with the thermoacoustic element respectively, wherein the first electrodes and the second electrodes are mutually parallel and are alternately arranged; and the distances between neighbouring first and second electrodes are equal. The working voltage of the thermoacoustic device is less than 50v and meets the following conditions: n is the total number of the first and second electrodes; andR1 is the resistance of the thermoacoustic device in the direction from the first electrodes to the second electrodes.

Description

technical field [0001] The invention relates to a sound generating device, in particular to a thermal sound generating device. Background technique [0002] The sounding device generally consists of a signal input device and a sounding element. A signal is input to the sounding element through the signal input device, so that the sounding element emits sound. The sounding principle of the sounding element used in the sounding device in the prior art is the conversion of "electricity-force-sound", that is, the surrounding air is pushed by generating mechanical vibrations, causing the air medium to fluctuate so as to emit sound. The structure of this sounding element is relatively complicated. In order to solve the problems of complex structures and large volumes of existing sounding elements, people continue to develop new sounding elements. [0003] As early as the beginning of the 20th century, someone proposed the idea of ​​a thermoacoustic component based on the princi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R23/00
Inventor 潜力王昱权
Owner BEIJING FUNATE INNOVATION TECH
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