JPS5848200U

JPS5848200U - piezoelectric speaker

Info

Publication number: JPS5848200U
Application number: JP14330781U
Authority: JP
Inventors: 森川　英次; 陽一有田
Original assignee: 三洋電機株式会社
Priority date: 1981-09-25
Filing date: 1981-09-25
Publication date: 1983-03-31

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の圧電型スピーカの断面図、第２図は本考
案の圧電型スピーカー実施例の断面図、゛第３図及び第
４図は本考案の圧電型スピーカの要　　　　一部分群斜
視図及び断面図、第５図は本考案の圧電型スピーカの動
作形態を示す模式図、第６図は周波数特性図、第７図は
本考案の他の実施例の断面図を夫々示している。１０、　２０．　３０・・・圧電振動子、１１，２１゜
３１・・・振動基板、１２．　２２．　３２・・・圧電
材料板、１３、　２３．　３３・・・舌片、１４．　２
４．　３４・・・突出部、１５．　２５．　３５・・・
環状片、４０・・・円筒体、６０・・・支持谷、８０・
・・音響振動板。第４図８０第５図　　−Figure 1 is a sectional view of a conventional piezoelectric speaker, Figure 2 is a sectional view of an embodiment of the piezoelectric speaker of the present invention, and Figures 3 and 4 are perspective views of essential parts of the piezoelectric speaker of the present invention. 5 is a schematic diagram showing the operating form of the piezoelectric speaker of the present invention, FIG. 6 is a frequency characteristic diagram, and FIG. 7 is a sectional view of another embodiment of the present invention. 10, 20. 30...Piezoelectric vibrator, 11,21°31...Vibration substrate, 12. 22. 32... Piezoelectric material plate, 13, 23. 33... Tongue piece, 14. 2
4. 34... protrusion, 15. 25. 35...
Annular piece, 40... Cylindrical body, 60... Support valley, 80...
...Acoustic diaphragm. Figure 4 80 Figure 5 -

Claims

[Scope of utility model registration request]

A piezoelectric material plate is bonded to the upper surface of a vibrating substrate comprising a plurality of upright tongue pieces extending upwardly from the circumference of a circular thin metal plate and an annular piece hanging downward from the center of the thin plate. A number of piezoelectric vibrators having a structure, an appropriate number of cylindrical bodies whose open ends are fitted into annular pieces of a vibration substrate of these piezoelectric vibrators, and an acoustic diaphragm for emitting sound. The plurality of tongue pieces provided around the vibrating substrate of each piezoelectric vibrator are formed with inwardly protruding parts located above and below, and the piezoelectric material plate side of each piezoelectric vibrator is The peripheries of the vibration substrates of each piezoelectric vibrator are locked between the upper and lower inwardly protruding portions of each of the tongue pieces so as to face each other, and the annular piece at the center of each vibration plate is inserted into the openings at both ends of the cylindrical body. By fitting and connecting, a laminate consisting of a large number of piezoelectric vibrators is constructed, and the piezoelectric vibrator in the bottom layer of the laminate is supported and fixed, and the acoustic diaphragm is attached to the piezoelectric vibrator in the top layer. A piezoelectric booster speaker featuring combined features.