JPS62127195U

JPS62127195U -

Info

Publication number: JPS62127195U
Application number: JP1344586U
Authority: JP
Priority date: 1986-01-31
Filing date: 1986-01-31
Publication date: 1987-08-12
Anticipated expiration: 2001-01-31
Also published as: JPH0749915Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る超音波トランスデユーサ
の一実施例の縦断面図、第２図は第１図の超音波
トランスデユーサの分解斜視図、第３図は第１図
の超音波トランスデユーサの変形例の部分断面図
、第４図は従来の超音波トランスデユーサの内部
構造を示す縦断面図である。２０……圧電素子、２１……振動板、２１ａ…
…周縁部、２１ｂ……支持部分、２１ｃ……突出
部、２２……弾性体、２３……異方導電性ゴムシ
ート、２４……ベース板、２５……ケース部材、
２５ａ，２５ｂ……開口端部、２９……パターン
、２９ａ，３０……端子パターン、３１……スル
ーホール。 FIG. 1 is a longitudinal sectional view of an embodiment of the ultrasonic transducer according to the present invention, FIG. 2 is an exploded perspective view of the ultrasonic transducer of FIG. FIG. 4 is a partial cross-sectional view of a modified example of the transducer, and FIG. 4 is a longitudinal cross-sectional view showing the internal structure of a conventional ultrasonic transducer. 20... Piezoelectric element, 21... Vibration plate, 21a...
...Peripheral portion, 21b...Support portion, 21c...Protrusion portion, 22...Elastic body, 23...Anisotropically conductive rubber sheet, 24...Base plate, 25...Case member,
25a, 25b...Open end, 29...Pattern, 29a, 30...Terminal pattern, 31...Through hole.

Claims

[Claims for Utility Model Registration] (1) A metal diaphragm, a piezoelectric element bonded to approximately the center of the diaphragm for bending vibration of the diaphragm, and a piezoelectric element for bending vibration along the node line of the diaphragm; A sheet-like elastic body is placed in close contact with the front side of the plate, and an anisotropic conductive material is placed in close contact with one electrode of the piezoelectric element and the node line located outside thereof on the back side of the diaphragm. a rubber sheet, an insulating base plate disposed under the anisotropically conductive rubber sheet and covering the diaphragm with the piezoelectric element adhesive, and an inner diameter into which the diaphragm and the base plate are fitted; a case member whose upper and lower open ends are bent over the periphery of the elastic body and the base plate to elastically support the diaphragm between the elastic body and the anisotropically conductive rubber sheet; An ultrasonic transducer characterized in that one electrode of the plate and the piezoelectric element is electrically connected to a terminal portion provided on the base plate through the anisotropically conductive rubber sheet. (2) In the diaphragm, the adhesive part of the piezoelectric element protrudes outward from the case member, and frequency adjustment is performed by changing the thickness of this protruding part. The ultrasonic transducer described in section 1).