JPS6057299U

JPS6057299U - electroacoustic transducer

Info

Publication number: JPS6057299U
Application number: JP13857183U
Authority: JP
Inventors: 佐古　純一; 兼信　宗明
Original assignee: ダイキン工業株式会社
Priority date: 1983-09-06
Filing date: 1983-09-06
Publication date: 1985-04-22

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 the drawing]

第１図は先行技術の断面図、第２図は第１図に示された
先行技術の特性を示すグラフ、第３図は本考案の一実施
例の斜視図、第４図は第３図における圧電素子１３付近
の断面図、第５図は本考案の他の実施例の第４図に対応
する断面図、第６図は第３図および第４図に示された実
施例の本件考案者による実験結果を示すグラフ、第７図
は本考案の他の実施例の断面図、第８図は第７図に示さ
れた実施例の本件考案者による実験結果を示すグラフ、
第９図は本考案の他の実施例の斜視図、第・１０図は比
較のために本件考案者が行なった実験結果を示すグラフ
である。１１．４１・・・支持部材、ｌｌａ、４１ａ・・・透孔
、１２．４２・・・シート体、１３，１８，４３・・・
圧電素子、１４．２１・・・圧電体、１５．　１６．　
１９．２２・・・電極。Figure 1 is a sectional view of the prior art, Figure 2 is a graph showing the characteristics of the prior art shown in Figure 1, Figure 3 is a perspective view of an embodiment of the present invention, and Figure 4 is the figure 3. 5 is a sectional view of the vicinity of the piezoelectric element 13 in FIG. 5, a sectional view corresponding to FIG. 4 of another embodiment of the present invention, and FIG. FIG. 7 is a cross-sectional view of another embodiment of the present invention; FIG. 8 is a graph showing the experimental results of the inventor of the present invention for the embodiment shown in FIG. 7;
FIG. 9 is a perspective view of another embodiment of the present invention, and FIG. 10 is a graph showing the results of an experiment conducted by the inventor of the present invention for comparison. 11.41...Supporting member, lla, 41a...Through hole, 12.42...Sheet body, 13, 18, 43...
Piezoelectric element, 14.21... piezoelectric body, 15. 16.
19.22...electrode.

Claims

[Scope of utility model registration request]

(1) A sandwiched piezoelectric element with flexible electrodes arranged on both surfaces of the piezoelectric body is fixed to a part of the surface of an elastic synthetic resin sheet to create a unimorph structure, and this sheet An electroacoustic transducer characterized in that at least a part of the periphery of the body is supported by a support member.

(2) The surface area of the piezoelectric element is 0.3 of the surface area of the sheet body.
The electroacoustic transducer according to claim 1, which is a utility model registered.

(3) The surface area of the piezoelectric element is 0.5 of the surface area of the sheet body.
The electroacoustic transducer according to claim 2, which is a utility model registered.