JPS6160597U

JPS6160597U -

Info

Publication number: JPS6160597U
Application number: JP14532784U
Authority: JP
Priority date: 1984-09-26
Filing date: 1984-09-26
Publication date: 1986-04-23

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す分解斜視図、
第２図は第１図の断面図、第３図および第４図は
第１図の夫々部分的な周波数特性図、第５図は本
考案の周波数特性図、第６図は従来の断面図、第
７図は第６図で示す構成による周波数特性図であ
る。１９…圧電素子、２０…圧電振動子、２１…電
極板、２４…第１の振動板、２５…フレーム、２
８…第２の振動板、２９…支持部材。 FIG. 1 is an exploded perspective view showing an embodiment of the present invention;
Figure 2 is a sectional view of Figure 1, Figures 3 and 4 are partial frequency characteristic diagrams of Figure 1, Figure 5 is a frequency characteristic diagram of the present invention, and Figure 6 is a sectional view of the conventional one. , FIG. 7 is a frequency characteristic diagram of the configuration shown in FIG. 6. 19... Piezoelectric element, 20... Piezoelectric vibrator, 21... Electrode plate, 24... First diaphragm, 25... Frame, 2
8... Second diaphragm, 29... Support member.

Claims

[Scope of utility model registration request]

A first diaphragm in the form of a film having high frequency characteristics is attached to the electrode plate of the piezoelectric vibrator, which is constructed by fixing a conductive electrode plate to a piezoelectric element, and a ring-shaped diaphragm is attached to the outer periphery of this diaphragm. It is fixed to one edge of the frame, and a second diaphragm having a lower frequency characteristic than the first diaphragm is attached to the other edge. A piezoelectric speaker device comprising a ring-shaped support member interposed between electrode plates.