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Piezoelectric loudspeaker

A technology of piezoelectric speakers and piezoelectric ceramics, which is applied in the field of speakers, can solve problems such as poor sound quality of piezoelectric speakers and damage to piezoelectric transducer sheets, and achieve improved sound quality, convenient installation and use, and long service life Effect

Inactive Publication Date: 2010-12-15
AUDIOWELL ELECTRONICS GUANGDONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of welding connection may cause damage to the piezoelectric transducer during the welding process. On the other hand, the structural changes brought about by the solder joints and wires to the vibrating diaphragm will also change the frequency response characteristics of the piezoelectric speaker, making the piezoelectric transducer Poor sound quality from electric speakers

Method used

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  • Piezoelectric loudspeaker
  • Piezoelectric loudspeaker
  • Piezoelectric loudspeaker

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing.

[0013] In the figure: support frame 1, electrode sheet 2, electrode protective glue 3, conductive metal foil 4, insulating glue 5, piezoelectric ceramic transducer sheet 6, metal substrate 7, fixed adhesive 8.

[0014] as attached figure 1 , attached figure 2 As shown, the piezoelectric speaker of the present invention is composed of a support frame 1, an electrode sheet 2, an electrode protective glue 3, a conductive metal foil 4, an insulating glue 5, a piezoelectric ceramic transducer sheet 6, a metal substrate 7, and a fixed back glue 8 Composition, the multi-layer piezoelectric ceramic transducer 6 and the metal substrate 7 form the vibrating diaphragm, the vibrating diaphragm is connected with the supporting frame through the fixed adhesive, the electrode sheet is arranged on the supporting frame, and the electrically insulating supporting frame effectively solves t...

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PUM

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Abstract

The invention relates to a piezoelectric loudspeaker, belonging to the loudspeaker field and comprising a supporting frame, an electrode slice, an electric conduction metal foil, an insulating glue, piezoelectric ceramic transduction slices, a metal substrate and a fixed gum, wherein the plurality of layers of piezoelectric ceramic transduction slices and the metal substrate form a vibrating diaphragm, the vibrating diaphragm is connected with the supporting frame through the fixed gum, the electrode slice is arranged on the supporting frame, the electrodes of the piezoelectric ceramics transduction slices are connected with the electric conduction metal foil, the electric conduction metal foil is connected with the electrodes of the supporting frame, the electric conduction metal foil and the metal substrate are insulated by using the insulating glue, and electrode glue covers the electric conduction metal foil. The invention has the advantages of simple structure, long service life, convention assembly, and better acoustic effect.

Description

technical field [0001] The piezoelectric speaker of the invention belongs to the field of speakers. Background technique [0002] A piezoelectric speaker is a small electroacoustic device that uses piezoelectric ceramics as a sound conversion element, and can be widely used in various portable electronic devices. Since the vibration diaphragm of the piezoelectric speaker is composed of a multilayer piezoelectric ceramic transducer and a thin, light metal substrate, the piezoelectric speaker has a wide frequency response range and can simulate various frequencies well. sound signal. [0003] Existing piezoelectric speakers generally use a metal frame connected to a metal substrate as a boundary support, and then use a welding method to connect piezoelectric ceramic transducers and input electrodes together. This kind of welding connection may cause damage to the piezoelectric transducer during the welding process. On the other hand, the structural changes brought about by t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R17/00
Inventor 张曙光陈胜
Owner AUDIOWELL ELECTRONICS GUANGDONG
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