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Thermoacoustic device

A technology of thermo-acoustic and thermo-acoustic components, which is applied in the direction of sensors, electrical components, sensor parts, etc., can solve problems such as not involving safety voltage, and achieve an effect that is conducive to commercialization

Active Publication Date: 2010-07-21
BEIJING FUNATE INNOVATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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] The specific embodiments of the thermal sound generating device of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] See figure 1 and figure 2 , An embodiment of the present invention provides a thermally induced sound generating device 100. The thermosound device 100 includes a thermosound element 110, and a plurality of first electrodes 104 and a plurality of second electrodes 108 are alternately arranged at intervals and are electrically connected to the thermosound element 110. Wherein, in this embodiment, the distance between adjacent first electrodes 104 is equal, and the distance between adjacent second electrodes 108 is equal. The distance between each first electrode 104 and two adjacent second electrodes 108 is equal. Similarly, the distance between each second electrode 108 and two adjacent first electrodes is equal. The first electrode 104 and the second electrode 108 conduct the entire thermosound ...

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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 thermally induced sound generating device. Background technique [0002] The sound device is generally composed of a signal input device and a sound element. Input the signal to the sound element through the signal input device, and then make the sound element emit 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, by generating mechanical vibration to push the surrounding air, causing the air medium to fluctuate to emit sound. The structure of the sound element is relatively complicated. In order to solve the problems of complex structure and large volume of existing sound generating elements, people continue to develop new sound generating elements. [0003] As early as the beginning of the twentieth century, someone proposed a concept of a thermo-sounding element based on the prin...

Claims

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Application Information

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