JPH0284352U

JPH0284352U -

Info

Publication number: JPH0284352U
Application number: JP1988164727U
Authority: JP
Priority date: 1988-12-19
Filing date: 1988-12-19
Publication date: 1990-06-29

Description

[Brief explanation of drawings]

第１図ａ，ｂは本考案の電歪効果素子の第１の
実施例の平面図と断面図、第２図ａ，ｂは本考案
の電歪効果素子の第２の実施例の平面図と断面図
、第３図ａ，ｂは従来の電歪効果素子の平面図と
断面図である。１……電歪材層、２……内部電極層、３……絶
縁性物質、４……外部電極、５……端面電極、６
……上電極板、７……外装ケース、７ａ……口縁
部、７ｂ……凸部、８……電気絶縁材。 Figures 1a and b are a plan view and a sectional view of a first embodiment of the electrostrictive element of the present invention, and Figures 2a and b are plan views of a second embodiment of the electrostrictive element of the present invention. 3A and 3B are a plan view and a sectional view of a conventional electrostrictive effect element. DESCRIPTION OF SYMBOLS 1... Electrostrictive material layer, 2... Internal electrode layer, 3... Insulating material, 4... External electrode, 5... End surface electrode, 6
. . . Upper electrode plate, 7 . . . Exterior case, 7 a .

Claims

[Claims for Utility Model Registration] A laminated sintered body in which sheet-like piezoelectric ceramic members and internal electrode conductors are alternately laminated, and one end surface of the internal electrode conductor exposed on the opposing side surface of the laminated sintered body. An electrostrictive element comprising an insulating layer that insulates every other layer on each side surface, and a pair of external electrodes that electrically connect the other exposed end surface of the internal electrode conductor to form two comb-shaped electrodes. end surface electrodes are led out on the upper and lower surfaces, and the external electrodes are respectively connected to the end surface electrodes led out on the upper and lower surfaces,
Furthermore, an upper electrode plate with a T-shaped cross section having a protrusion is placed on the end electrode on the upper surface, and the upper electrode plate is housed in a conductive outer case, and an electrically insulating material is placed on the upper electrode plate, and an In an electrostrictive element whose portion is sealed, a convex portion for centering the electrostrictive element that engages with a hollow portion at the center of the electrostrictive element or a peripheral portion of the electrostrictive element; An electrostrictive effect element, characterized in that it is formed on the bottom surface of the exterior case.