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Piezoelectric loudspeaker

A piezoelectric speaker and piezoelectric sheet technology, applied in the field of speakers, can solve the problems of poor low frequency response, sharp and unpleasant sound, etc., and achieve the effect of improving acoustic performance

Inactive Publication Date: 2013-04-24
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current piezoelectric speakers have defects such as poor low-frequency response, sharp and unpleasant sound, and it is difficult to meet people's requirements for acoustic performance.

Method used

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  • Piezoelectric loudspeaker
  • Piezoelectric loudspeaker
  • Piezoelectric loudspeaker

Examples

Experimental program
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Embodiment Construction

[0016] The specific structure of the piezoelectric speaker of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] Such as figure 1 and figure 2 As shown, the piezoelectric speaker of the present invention includes a casing, and the casing forms the outer frame of the piezoelectric speaker. In this implementation process, the casing includes a first casing 11 and a second casing 12, and a sound hole 13 is provided on the casing; the sound emitting part , the sound-generating part includes a diaphragm 2 arranged corresponding to the sound outlet 13; the transmission part, the transmission part includes a bracket 7 and a transmission plate 3 that is airtightly combined with the diaphragm 2 away from the sound outlet 13 side, the diaphragm 2, The transmission plate 3 and the bracket 7 are sequentially combined; the vibrating part includes a support 6 and a piezoelectric sheet 4 electrically connected to an external circ...

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Abstract

The invention discloses a piezoelectric loudspeaker which comprises a shell which forms an external frame of the piezoelectric loudspeaker, and a sound production hole is formed on the shell. The piezoelectric loudspeaker further comprises a sound production part, a transmission part and a vibration part. The sound production part comprises a vibrating diaphragm arranged corresponding to the sound production hole; the transmission part comprises a support and a transmission plate, and the vibrating diaphragm, the transmission plate and the support are sequentially combined, wherein the transmission plate is combined with one side of the vibrating diaphragm in an airtight mode, and the one side of the vibrating diaphragm is away from the sound production hole; the vibration part comprises piezoelectric pieces and a plurality of supporting pieces, wherein the piezoelectric pieces are used for electrically connecting an external circuit, the plurality of supporting pieces are independently arranged, and the piezoelectric pieces are correspondingly arranged on the supporting pieces; and the supporting pieces are arranged inside the shell in a hanging mode, one ends of the supporting pieces are fixed on the shell, and the other ends of the supporting pieces are fixed on the support. The piezoelectric loudspeaker has the advantages of being good in acoustic performance.

Description

technical field [0001] The invention relates to the field of speakers, in particular to a piezoelectric speaker. Background technique [0002] Speakers are widely used in consumer electronic products such as electronic products and home appliances. With the development of science and technology, consumer electronic products are becoming more and more perfect, people have higher and higher requirements for their appearance, and their thickness is getting smaller and smaller. At the same time, the requirements for miniaturization, thinning and sound performance of speaker devices are also increasing. Higher and higher. [0003] Compared with traditional speaker devices, piezoelectric speakers have simple structure, small size, low cost, and high electroacoustic conversion efficiency. However, the current piezoelectric speakers have defects such as poor low-frequency response, sharp and unpleasant sound, etc., and it is difficult to meet people's requirements for acoustic per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R17/10
Inventor 杨健斌焦其金江超李志
Owner GOERTEK INC
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