JPS6310699U

JPS6310699U -

Info

Publication number: JPS6310699U
Application number: JP10379786U
Authority: JP
Priority date: 1986-07-08
Filing date: 1986-07-08
Publication date: 1988-01-23
Also published as: JPH0453116Y2

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案に係る圧電型スピー
カの実施例を示し、第１図は駆動アーム部を円板
状に形成した場合の要部の断面図、第２図はアク
チユエータの配置例を示す平面図である。第３図
Ａ乃至Ｃは従来の圧電型スピーカの例を示し、Ａ
は圧電素子にコーン状振動板を取り付けた例の断
面図、Ｂは圧電素子にドーム状振動板を取り付け
た例の側面図、Ｃは圧電フイルムの両端を固定し
て該フイルムに通電することによりフイルムを振
動板とする形態の例を示す側面図である。１：圧電型スピーカ全体、２：アクチユエータ
、３，４：駆動アーム部、５，６，７：支持支点
、８：振動板、９：取付部、１０：中心部、１１
：固定部材、１２：調整ネジ、１３ａ：平面部、
１３ｂ：立ち下り部、１４：取付ビス、１５：取
付部材。 1 and 2 show an embodiment of the piezoelectric speaker according to the present invention, FIG. 1 is a sectional view of the main part when the drive arm is formed into a disk shape, and FIG. 2 is the arrangement of the actuator. FIG. 3 is a plan view showing an example. 3A to 3C show examples of conventional piezoelectric speakers;
is a cross-sectional view of an example in which a cone-shaped diaphragm is attached to a piezoelectric element, B is a side view of an example in which a dome-shaped diaphragm is attached to a piezoelectric element, and C is a cross-sectional view of an example in which a dome-shaped diaphragm is attached to a piezoelectric element. It is a side view which shows the example of the form which uses a film as a diaphragm. 1: Entire piezoelectric speaker, 2: Actuator, 3, 4: Drive arm section, 5, 6, 7: Support fulcrum, 8: Vibration plate, 9: Mounting section, 10: Center section, 11
: Fixed member, 12: Adjustment screw, 13a: Plane part,
13b: Falling portion, 14: Mounting screw, 15: Mounting member.

Claims

[Scope of utility model registration request]

A speaker that uses an actuator made of stacked piezoelectric elements as a drive source and amplifies it with a drive arm having a support fulcrum to vibrate a diaphragm, and the drive arm is formed into a plate shape. A piezoelectric speaker featuring