JPS61187463U

JPS61187463U -

Info

Publication number: JPS61187463U
Application number: JP1985070134U
Authority: JP
Priority date: 1985-05-14
Filing date: 1985-05-14
Publication date: 1986-11-21

Description

[Brief explanation of the drawing]

第１図は本考案の全体の構成を示す一実施例の
断面図、第２図は圧電ダイアフラムの一実施例の
正面図及びＡ―Ａ′断面図、第３図は従来装置の
一例の断面図及び圧電素子の平面図である。（符号の説明）、１０……金属薄板、１１，１
２……圧電素子、１３，１４……リード線、１５
〜１８……緩衝材（弾性材）、１９……小孔。 Fig. 1 is a sectional view of an embodiment showing the overall structure of the present invention, Fig. 2 is a front view and AA' sectional view of an embodiment of a piezoelectric diaphragm, and Fig. 3 is a sectional view of an example of a conventional device. FIG. 3 is a diagram and a plan view of a piezoelectric element. (Explanation of symbols), 10... Metal thin plate, 11, 1
2... Piezoelectric element, 13, 14... Lead wire, 15
~18...Buffer material (elastic material), 19...Small hole.

Claims

[Scope of utility model registration request]

A piezoelectric diaphragm in which a thin plate-like piezoelectric element is bonded to at least the peripheral part of a thin metal plate is attached to the housing, and an electric signal generated in the piezoelectric element is generated when a mechanical quantity is applied to the piezoelectric diaphragm from the outside. One end of the lead wire is connected to the surface of the piezoelectric element to detect the mechanical quantity applied by taking it out and to take out the electric signal of the piezoelectric element, and the joined part is covered with an elastic material. A piezoelectric mechanical quantity sensor, characterized in that a part of the intermediate portion of the lead wire is fixed to a thin metal plate portion around the piezoelectric diaphragm using an elastic material.