JPS5893098U - piezoelectric speaker - Google Patents

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

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

第１図は従来側番示す圧電型スピーカの断面図、第２図
はこの考案の圧電型スピーカの断面図および平面図。第
３図は制動板の応力歪曲線図。 １１・・・コーン状振動板、１２・・・円板状圧電振動
子、１３・・・短冊状制動板、１４・・・カップ状フレ
ーム。FIG. 1 is a sectional view of a conventional piezoelectric speaker, and FIG. 2 is a sectional view and a plan view of the piezoelectric speaker of this invention. Figure 3 is a stress strain curve diagram of the brake plate. DESCRIPTION OF SYMBOLS 11... Cone-shaped diaphragm, 12... Disk-shaped piezoelectric vibrator, 13... Strip-shaped brake plate, 14... Cup-shaped frame.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] カップ状フレーム内にコーン状振動板の周縁部を吊着し
、該振動板の頂部に円板状圧電振動子の中央部を固着し
た圧電型スピーカにおいて、前記円板状圧電振動子の下
面に該圧電振動子の径より大なる寸法の短冊状制動板を
固着し、該制動板の両端部に夫々曲げ応力を加えて前記
フレームに係止、或いは固着したことを特徴とする圧電
型スピーカ。In a piezoelectric speaker in which the peripheral edge of a cone-shaped diaphragm is suspended within a cup-shaped frame, and the center portion of a disk-shaped piezoelectric vibrator is fixed to the top of the diaphragm, the bottom surface of the disk-shaped piezoelectric vibrator is A piezoelectric speaker characterized in that a rectangular braking plate having a size larger than the diameter of the piezoelectric vibrator is fixed, and the braking plate is locked or fixed to the frame by applying bending stress to both ends of the braking plate.