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Diaphragm piezoelectric speaker

A piezoelectric speaker, diaphragm type technology, applied in the field of audio equipment, can solve the problems of unpleasantness, high minimum resonance frequency, sharp sound, etc., and achieve the effect of reasonable structure, wide frequency range and small size

Inactive Publication Date: 2011-12-21
常州声翔电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current piezoelectric speakers have defects such as high minimum resonance frequency, sharp sound, and unpleasant sound.

Method used

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  • Diaphragm piezoelectric speaker
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  • Diaphragm piezoelectric speaker

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Embodiment Construction

[0015] Examples are given below and the present invention is further described. It is necessary to point out that the following examples should not be construed as limiting the protection scope of the present invention. If a person of ordinary skill in this field makes some non-essential improvements and adjustments to the present invention according to the above-mentioned content of the present invention, it still belongs to the protection scope of the present invention.

[0016] The present invention comprises prior art material sound film 1 (as the mixture of paper and PU, the mixture of paper and foam, PU, ​​PEI, PET, the sound film that various prior art materials such as PI make), plastic casing 5 One side is an open opening, and the edge of the sound film 1 is bonded to the opening of the plastic shell 5; the metal substrate 4 (for example: a metal sheet metal substrate made of copper) is in the shape of an arc-shaped sheet The body can also be made into a sheet body w...

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Abstract

The invention provides a vibrating film piezoelectric loudspeaker, which is characterized in that: it has a shell, the shell has an opening, and the edge of the sound film is bonded to the opening of the shell; The sheets are respectively fixed on the upper surface and the lower surface of the metal substrate, and there are wires connecting the two piezoelectric ceramic sheets; there is a connecting body connecting the middle part of the piezoelectric ceramic sheet located on the upper surface of the metal substrate and the sound membrane. Middle part; one audio feeder is connected to the metal substrate, and the other audio feeder is connected to any one of the above-mentioned piezoelectric ceramic sheets. The shape of the metal substrate is circular arc or irregular arc. The invention is a diaphragm type piezoelectric speaker with low minimum resonance frequency, flat frequency response, soft and pleasing sound.

Description

technical field [0001] The invention relates to an audio device, in particular to a vibrating film piezoelectric speaker. Background technique [0002] Speakers are widely used in consumer electronics such as electronic products and home appliances. In recent years, with the continuous development of science and technology, piezoelectric speakers have the characteristics of small size, simple process, low cost, and high electroacoustic conversion efficiency compared with traditional dynamic speakers, and are widely used. [0003] However, the current piezoelectric speaker has defects such as high minimum resonance frequency, sharp sound, and unpleasant sound. With the higher and higher requirements of users, in order to meet the requirements of the market, more comprehensive requirements are put forward for the design and manufacture of piezoelectric speakers, and it is urgent to improve the design of piezoelectric speakers. Contents of the invention [0004] The present...

Claims

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Application Information

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IPC IPC(8): H04R9/06
Inventor 孟玥
Owner 常州声翔电子有限公司
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