JPH0442760U

JPH0442760U -

Info

Publication number: JPH0442760U
Application number: JP1990084908U
Authority: JP
Priority date: 1990-08-11
Filing date: 1990-08-11
Publication date: 1992-04-10

Description

[Brief explanation of the drawing]

第１図は実施例の圧電積層体の構成を説明する
側面模式図、第２図ａ，ｂは圧電板の側面図、平
面図、第３図は金属板の平面図、第４図は絶縁距
離と絶縁破壊電圧との関係を示すグラフ、第５図
は絶縁距離とアクチユエータの発生荷重との関係
を示すグラフである。１，１１……圧電板、２，１３……金属電極板
、３……絶縁板、４，１２……電極層。 Fig. 1 is a schematic side view illustrating the structure of the piezoelectric laminate of the example, Fig. 2 a and b are side views and plan views of the piezoelectric plate, Fig. 3 is a plan view of the metal plate, and Fig. 4 is the insulation A graph showing the relationship between distance and dielectric breakdown voltage, and FIG. 5 is a graph showing the relationship between insulation distance and load generated by the actuator. 1, 11... Piezoelectric plate, 2, 13... Metal electrode plate, 3... Insulating plate, 4, 12... Electrode layer.

Claims

[Claims for Utility Model Registration] Consisting of a plurality of piezoelectric plates having electrode layers on both the front and back sides, and a plurality of metal electrode plates that are electrically connected and serve as electrodes, the piezoelectric plates and the metal electrode plates are arranged alternately. In the piezoelectric laminate formed by laminating the piezoelectric plate, the electrode layer of the piezoelectric plate is formed from the inner circumferential side 0.2 to 0.5 mm from the outer circumferential end surface of the piezoelectric plate, and A piezoelectric laminate characterized by having a ring-shaped insulating part with a width of .5 mm.