JPS60124200U

JPS60124200U - piezoelectric speaker

Info

Publication number: JPS60124200U
Application number: JP997384U
Authority: JP
Inventors: 杉本　好
Original assignee: オンキヨー株式会社
Priority date: 1984-01-26
Filing date: 1984-01-26
Publication date: 1985-08-21

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図は従来の圧電型スピーカの断面図、第２図はバイ
モルフ振動子の振動モード説明図、１第３図は本考案圧
電型スピーカの断面図、第４図は出力音圧および歪レベ
ルの周波数特性図である。補正　昭５９．１６図面の簡単な説明を次のように補正する。明細書第３頁、図面の簡単な説明の欄に次の如く追記す
る。１１は中心電極、２，２′は圧電セラミック薄板、３，
３′は表面電極、４はコーン振動板、６′はバイモルフ
型振動子である。１Figure 1 is a cross-sectional view of a conventional piezoelectric speaker, Figure 2 is an explanatory diagram of vibration modes of a bimorph vibrator, Figure 1 is a cross-sectional view of the piezoelectric speaker of the present invention, and Figure 4 is an output sound pressure and distortion level. FIG. Amendment 16/1980 The brief description of the drawing is amended as follows. The following is added to the brief description of the drawings on page 3 of the specification. 11 is a center electrode, 2, 2' are piezoelectric ceramic thin plates, 3,
3' is a surface electrode, 4 is a cone diaphragm, and 6' is a bimorph type vibrator. 1

Claims

[Scope of utility model registration request]

A ring-shaped piezoelectric ceramic thin plate 2 is placed on both sides of the center electrode 1.
A cone vibrator is attached to the center of a bimorph type vibrator 6, in which surface electrodes 3 and 3' having the same shape as the piezoelectric ceramic thin plates 2 and 2' are provided on the respective surfaces of the voltage ceramic thin plates 2 and 2'. A piezoelectric speaker characterized in that the top of a plate 4 is fixed.