JPS62149139U

JPS62149139U -

Info

Publication number: JPS62149139U
Application number: JP3649186U
Authority: JP
Priority date: 1986-03-12
Filing date: 1986-03-12
Publication date: 1987-09-21

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例を示す圧電リレ
ーの変位拡大機構の平面図、第２図、第３図はそ
れぞれ第１図における第１の腕部の第１、第２の
例を示す部分分解斜視図、第４図は本考案の第２
の実施例を示す圧電リレーの変位拡大機構の平面
図、第５図は従来の圧電リレーの一例を示す斜視
図、第６図は第５図における変位拡大機構の一例
を示す平面図、第７図は第６図における第１の腕
部を示す部分分解斜視図である。１１……積層圧電アクチユエータ、１２……駆
動子、１３……基盤部、２１……第１のヒンジば
ね、３２，３３……第２、第３の腕部、２２１，
２２２，２２３……第２のヒンジばね、２３１，
２３２……第３のヒンジばね、２４１，２４２…
…第４のヒンジばね、２５１，２５２……第５の
ヒンジばね、３１１，３１２……第１の腕部。 FIG. 1 is a plan view of a displacement magnification mechanism of a piezoelectric relay showing a first embodiment of the present invention, and FIGS. 2 and 3 are first and second examples of the first arm in FIG. 1, respectively. FIG. 4 is a partially exploded perspective view showing the second structure of the present invention.
5 is a perspective view showing an example of a conventional piezoelectric relay, FIG. 6 is a plan view showing an example of the displacement amplifying mechanism in FIG. 5, and FIG. This figure is a partially exploded perspective view showing the first arm part in FIG. 6. DESCRIPTION OF SYMBOLS 11... Laminated piezoelectric actuator, 12... Drive element, 13... Base part, 21... First hinge spring, 32, 33... Second and third arm parts, 221,
222, 223...second hinge spring, 231,
232...Third hinge spring, 241, 242...
...Fourth hinge spring, 251, 252... Fifth hinge spring, 311, 312... First arm.

Claims

[Claims for Utility Model Registration] (1) A laminated piezoelectric actuator formed by laminating multiple layers of piezoelectric ceramic plates, a driver for driving the laminated piezoelectric actuator, and a base portion disposed on one end surface of the laminated piezoelectric actuator; a beam-shaped first arm portion that presses and fixes the laminated piezoelectric actuator to the base portion via the driver and moves more than the displacement of the elongation when a voltage is applied to the laminated piezoelectric actuator; an arm, and first, second, and third arms that support the first arm in a predetermined position;
a second arm portion having a step portion with one end surface fixed to the step connection portion of the second and third hinge springs; and a second arm portion having a step portion fixed to the other end surface of the second arm portion. a third arm portion having a step portion supported by the fourth hinge spring; and a third arm portion having one end fixed to the step portion of the third arm portion and the other end fixed to the base portion. 5, the second hinge spring is bent into an L-shape so as to be in contact with a side surface in the longitudinal direction of the first arm that is in contact with the driver and a side surface that is opposite to the side surface that is in contact with the driver; Bend one end of the L-shaped part into a U-shape and
A piezoelectric relay characterized by being fixed to the side of the arm of a person. (2) One end surface of the first arm is tapered so that the side surface in contact with the driver in the longitudinal direction of the first arm is shorter than the opposite side surface. Piezoelectric relay described in item 1). (3) A utility model registration request in which one end surface of the first arm has a stepped shape, and the protruding part of the step is formed on the side of the first arm that is not in contact with the longitudinal drive element. Piezoelectric relays listed in scope (1).