JPS6234896U - - Google Patents

Description

Translated fromJapanese

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例におけるバイモル
フ振動板の断面形状図、第２図はこの考案の一実
施例の周波数特性図、第３図は従来の圧電スピー
カのバイモルフ振動板の斜視図、第４図はバイモ
ルフ振動板の構成及び各電極と印加される信号電
圧との関係を示す模式図、第５図は圧電スピーカ
の動作説明に用いる模式図、第６図は従来の圧電
スピーカの電極パターン図、第７図は従来の圧電
スピーカの周波数特性図である。 図面における主要な符号の説明、１，２：バイ
モルフ振動板。 Fig. 1 is a cross-sectional diagram of a bimorph diaphragm according to an embodiment of this invention, Fig. 2 is a frequency characteristic diagram of an embodiment of this invention, and Fig. 3 is a perspective view of a bimorph diaphragm of a conventional piezoelectric speaker. Fig. 4 is a schematic diagram showing the structure of a bimorph diaphragm and the relationship between each electrode and the applied signal voltage, Fig. 5 is a schematic diagram used to explain the operation of a piezoelectric speaker, and Fig. 6 is a schematic diagram showing the electrodes of a conventional piezoelectric speaker. The pattern diagram and FIG. 7 are frequency characteristic diagrams of a conventional piezoelectric speaker. Explanation of main symbols in the drawings: 1, 2: Bimorph diaphragm.

Claims (1)

Translated fromJapanese

【実用新案登録請求の範囲】[Scope of utility model registration request] 分極処理された２枚の圧電フイルムを貼着して
構成され、その断面形状が夫々異なる波形となる
ように交互に折り曲げ形成された少なくとも第１
及び第２の振動板を、互いの波形が一致するよう
に接触配置するようにした圧電スピーカ。 At least a first film is formed by pasting two polarized piezoelectric films, and is formed by bending the film alternately so that the cross-sectional shape thereof becomes a different waveform.
and a second diaphragm are arranged in contact with each other so that their waveforms match.