JPS58161395U

JPS58161395U - piezoelectric speaker

Info

Publication number: JPS58161395U
Application number: JP5776082U
Authority: JP
Inventors: 森川　英次; 川上　貢司
Original assignee: 三洋電機株式会社
Priority date: 1982-04-20
Filing date: 1982-04-20
Publication date: 1983-10-27

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) [Summary] 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図及び第
３図は本考案の圧電型スピーカの一実施例の斜視図、及
びその断面図、第４図ａ、　　ｂは本考案の圧電型スピ
ーカの他の実施例の断面図及びその要部分解斜視図、第
５図は第４図の実施例スピーカの動作を示す模式図、を
夫々示している。１、　４０．　５０・・・圧電振動子、２．１０・・・
有底フレーム、４．２０・・・ｍ動板、３０・・・ステ
一部材、４２、５２・・・突起部、６０・・・円筒部材
、６１゜６２・・・係止片。FIG. 1 is a sectional view of a conventional piezoelectric speaker, FIGS. 2 and 3 are perspective views and sectional views of an embodiment of the piezoelectric speaker of the present invention, and FIGS. A sectional view and an exploded perspective view of the main parts of another embodiment of the piezoelectric speaker, and FIG. 5 is a schematic diagram showing the operation of the embodiment speaker of FIG. 4, respectively. 1, 40. 50...Piezoelectric vibrator, 2.10...
Bottomed frame, 4.20... m moving plate, 30... stem member, 42, 52... protrusion, 60... cylindrical member, 61° 62... locking piece.

Claims

[Scope of utility model registration request]

In a piezoelectric speaker that drives a diaphragm by vibrating first and second piezoelectric vibrators coupled to both sides of a diaphragm in a complementary manner, the first and second piezoelectric oscillators are located at the center of the front surface, respectively. A piezoelectric material plate is bonded to the back side of a thin metal plate having a protrusion, and both piezoelectric vibrators are attached to both ends of a cylindrical member that is locked to the diaphragm by a locking piece formed at an intermediate position. A piezoelectric speaker characterized by fitted protrusions.