JPS60136600U - Piezoelectric electroacoustic transducer - 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図は従来の電気音響変換器の断面図、第２図は本考
案の電気音響変換器の断面図である。 １はケース、２は透過孔、３は環状突部Ａ、　４は端子
Ａ、　５は圧電素子、６は裏蓋、７は環状突部Ｂ、８は
端子Ｂ、９は絶縁リングである。FIG. 1 is a sectional view of a conventional electroacoustic transducer, and FIG. 2 is a sectional view of the electroacoustic transducer of the present invention. 1 is a case, 2 is a transmission hole, 3 is an annular projection A, 4 is a terminal A, 5 is a piezoelectric element, 6 is a back cover, 7 is an annular projection B, 8 is a terminal B, and 9 is an insulating ring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 導体からなり、前面に音響振動の透過孔２と圧電素子５
挾持用の環状突部Ａ３と端子Ａ４とを有するケース１と
、圧電素子５挾持用の環状突部１７と端子Ｂ８とを有し
、同じく導体からなる裏蓋６とによって圧電素子５を挾
持し、絶縁リング９を介して前記ケース１後端部を絞め
付けて裏Ｍ６を固定することにより、前記圧電素子５の
保持と導通を行うことを特徴とする電気音響変換器。It is made of a conductor and has an acoustic vibration transmission hole 2 and a piezoelectric element 5 on the front side.
The piezoelectric element 5 is held between a case 1 having an annular protrusion A3 for holding the piezoelectric element 5 and a terminal A4, an annular protrusion 17 for holding the piezoelectric element 5 and a terminal B8, and a back cover 6 also made of a conductor. An electroacoustic transducer characterized in that the piezoelectric element 5 is held and conductive by tightening the rear end of the case 1 through an insulating ring 9 and fixing the back M6.