JPH0192159U

JPH0192159U -

Info

Publication number: JPH0192159U
Application number: JP18811687U
Authority: JP
Priority date: 1987-12-09
Filing date: 1987-12-09
Publication date: 1989-06-16

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の断面図、第２図は
第１図の実施に使用する電歪効果素子の正面図、
第３図は従来の電歪効果素子の一例の斜視図、第
４図は従来の電歪効果素子取付け部材の一例の断
面図である。１ａ，１ｂ……セラミツク層、２ａ，２ｂ……
リード線、３……保護外装、４ａ，４ｂ……電歪
効果発生面、５……電歪効果発生中心、６……電
歪効果素子積層体、７ａ，７ｂ……金属部材、８
ａ，８ｂ……円錘形の穴、９ａ，９ｂ，１０ａ，
１０ｂ……取付け部材、１１ａ，１１ｂ……球状
物、１２ａ，１２ｂ……間隙。 FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a front view of an electrostrictive effect element used in implementing FIG. 1,
FIG. 3 is a perspective view of an example of a conventional electrostrictive effect element, and FIG. 4 is a sectional view of an example of a conventional electrostrictive element mounting member. 1a, 1b... Ceramic layer, 2a, 2b...
Lead wire, 3... Protective exterior, 4a, 4b... Electrostrictive effect generation surface, 5... Electrostrictive effect generation center, 6... Electrostrictive effect element laminate, 7a, 7b... Metal member, 8
a, 8b... Conical hole, 9a, 9b, 10a,
10b...Mounting member, 11a, 11b...Spherical object, 12a, 12b...Gap.

Claims

[Scope of utility model registration request]

A laminated body in which piezoelectric ceramic layers and internal electrode conductor layers are alternately laminated, and a tapered part of a conical hole is formed on both end faces of the laminated body in the direction in which electrostriction occurs, and the center of the tapered part is located to produce an electrostrictive effect. In an electrostrictive element mounting mechanism in which an electrostrictive effect element having a metal member arranged to coincide with a generation axis is attached to an electrostrictive effect element mounting member, a tapered part of a conical hole is provided in the mounting member. and a spherical object is held between a stress application point between a tapered part of the conical hole of the metal member and a tapered part of the conical hole of the mounting member. mechanism.