JPS58158599U

JPS58158599U - Ultrasonic transducer

Info

Publication number: JPS58158599U
Application number: JP5593582U
Authority: JP
Inventors: 幣之内　義昭
Original assignee: 株式会社村田製作所
Priority date: 1982-04-16
Filing date: 1982-04-16
Publication date: 1983-10-22
Also published as: JPS6238399Y2

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

[Brief explanation of drawings]

第１図は従来の超音波送受波器を示す縦断面図、第２図
は同上の圧電体を示す拡大断面図、第３図はこの考案の
成立過程で提案された超音波送受波器の縦断面図、第４
図は同上の端子板を底面から見た斜視図、第５図はこの
考案の実施例を示す縦□断面図、第６図は同上の斜視図
、第７図は同平面図、第８図は端子板の斜視図、第９図
はケースと端子板の固定部分を拡大した縦断面図である
。１・・・・・・ケース、２・・・・・・圧電体、３・・
・・・・段部、４・・・・・・第１端子、５・・・・・
・第２端子、６・・・・・・端子板、７・・・・・・第
１電極、８，１０・・・・・・リード線、９・・・・・
・第２電極、１２・・・・・・第１導電膜、２１・・・
・・・第３導電膜、２３・・・・・・かしめ当接片。第３図第４図Fig. 1 is a vertical cross-sectional view showing a conventional ultrasonic transducer, Fig. 2 is an enlarged cross-sectional view showing the same piezoelectric material as above, and Fig. 3 is an ultrasonic transducer proposed in the process of establishing this idea. Longitudinal sectional view, 4th
The figure is a perspective view of the same terminal board as seen from the bottom, FIG. 5 is a longitudinal sectional view showing an embodiment of this invention, FIG. 6 is a perspective view of the same, FIG. 7 is a plan view of the same, and FIG. 9 is a perspective view of the terminal board, and FIG. 9 is an enlarged vertical sectional view of the fixed portion of the case and the terminal board. 1... Case, 2... Piezoelectric body, 3...
...Stepped portion, 4...First terminal, 5...
・Second terminal, 6...Terminal board, 7...First electrode, 8, 10...Lead wire, 9...
・Second electrode, 12...First conductive film, 21...
. . . third conductive film, 23 . . . caulking abutment piece. Figure 3 Figure 4

Claims

[Scope of utility model registration request]

A metal case is provided with an opening at one end surface and a stepped portion protruding inward on the inner peripheral surface that defines the opening, a first electrode and a second electrode are formed on the main surfaces on both sides, and a second electrode is formed on the main surfaces of both sides. A piezoelectric body is disposed on the bottom surface of the case with one electrode electrically connected to the bottom surface of the case, and the piezoelectric body is positioned so that the peripheral edge is engaged with the stepped portion of the case to open the case. It is composed of a terminal board that closes the terminal board and holds a first terminal and a second terminal, and a lead wire that electrically connects the second electrode and the second terminal. A conductive film that is electrically connected to the first terminal and extends to the peripheral edge is provided on both sides, and is placed on the stepped part of the case so that the inner conductive film is in contact with the case. An ultrasonic transducer characterized by being provided with a caulking contact piece that abuts in an electrically connected state, fixes the terminal plate to the case, and establishes electrical contact between the inner and outer conductive films and the case. .