JPS60173996U - piezoelectric buzzer - 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図は従来の圧電ブザーを示す断面図、第２図はこの
考案に係る圧電ブザーの断面図、第３図は同上の裏面図
、第４図と第５図は振動板形成の異なった例を示す拡大
断面図、第６図は圧電ブザーの取付状態を示す断面図で
ある。 １１・・・・・・裏側プレート、１２・・・・・・外筒
、１３・・・・・・内筒、１４・・・・・・振動板、１
５・・・・・・発音体、１６．１７・・・・・・共鳴空
間。Fig. 1 is a cross-sectional view of a conventional piezoelectric buzzer, Fig. 2 is a cross-sectional view of a piezoelectric buzzer according to this invention, Fig. 3 is a back view of the same as above, and Figs. 4 and 5 are different diaphragm formations. FIG. 6 is an enlarged cross-sectional view showing an example, and FIG. 6 is a cross-sectional view showing the mounting state of the piezoelectric buzzer. 11... Back side plate, 12... Outer cylinder, 13... Inner cylinder, 14... Vibration plate, 1
5...Sounding body, 16.17...Resonance space.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 裏側プレートの前面に、外筒と、この外筒内に納まる短
尺の内筒を設け、外筒の先端を振動板で閉鎖し、内筒の
先端に発音体を取付け、前記裏側プレートに外筒内及び
内筒内と連通ずる通気孔を設けたことを特徴とする圧電
ブザー。An outer cylinder and a short inner cylinder that fits inside the outer cylinder are provided on the front of the back plate, the tip of the outer cylinder is closed with a diaphragm, a sounding body is attached to the tip of the inner cylinder, and the outer cylinder is attached to the back plate. A piezoelectric buzzer characterized by having a ventilation hole communicating with the inside and the inside of the inner cylinder.