JPS6118557U - piezoelectric relay - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the main parts of a conventional piezoelectric relay;
The figure is an explanatory diagram of the operation of a conventional piezoelectric relay, Figures 3a and b.
FIG. 4 is a perspective view of the first embodiment of the present invention, and FIG. 4 is a perspective view of the second embodiment of the present invention. 11... Piezoelectric drive body, 12.52... Base part, 13
2,173,143,532,573,543...arm part, 133,533,171,571,141,541
...Support hinge spring part, 172, 572, 142, 5
42... Drive hinge spring part, 14... Movable contact, a
, b, c, d, e, f, g, i, j... connection part, 15
...Fixed contact.

Claims (1)

[Claims for Utility Model Registration] - (1) A plurality of piezoelectric elements each having electrodes provided on both sides of a rectangular thin plate piezoelectric body are laminated, and when a voltage is applied, the piezoelectric body expands in a direction perpendicular to the surface of the piezoelectric body. a piezoelectric drive body that protects the displacement of the piezoelectric drive body, a drive element disposed on a first end face parallel to the surface of one piezoelectric element of the piezoelectric drive body, and a first end face opposite to the first end face of the piezoelectric drive body. a plate-shaped support hinge spring part that fixes the first end in the longitudinal force direction to the base part, and the first end face in the longitudinal force direction is fixed to the first support hinge; The piezoelectric driver is fixed to a second end in the longitudinal force direction of the spring part, and one side in the longitudinal force direction is fixed to the piezoelectric drive body in pressure contact with the base part via the driver, and the piezoelectric drive body is fixed to the base part in pressure contact with the first end face. a first arm portion having a cylindrical shape, the opposing second end surface of which moves more than the elongation displacement of the piezoelectric driver when a voltage is applied to the piezoelectric driver; and the piezoelectric element of the piezoelectric driver. a second support hinge spring portion having a first end in the longitudinal direction fixed to the base portion substantially parallel to the surface of the second support hinge spring portion; A second arm portion having a cylindrical shape, the end of which is fixed to the first end in the longitudinal direction; a second drive hinge spring part whose one end is fixed to the first end of the second arm part with a difference in level from the hinge spring part, and which is fixed to the second end surface of the first arm part; a displacement amplifying mechanism for moving a second end surface of the second arm by a displacement greater than a displacement of a second end surface of the first arm; 2 has a movable contact that moves almost parallel to the second drive hinge spring portion, and a fixed contact that is disposed opposite to the movable contact, and a predetermined voltage is applied to the piezoelectric drive body. In the piezoelectric relay, the movable contact contacts the fixed contact when a voltage equal to or above is applied, and the movable contact leaves the fixed contact when the voltage applied to the piezoelectric driver is less than a predetermined value. 1 arm,
the second arm portion, the foreboard first support hinge spring portion, the second support hinge spring portion, the first drive hinge spring portion;
A piezoelectric relay characterized in that the second drive hinge spring portion is integrally molded. (2) the base portion, the first arm portion, the second arm portion,
The first support hinge spring section, the second support hinge spring section, the first drive hinge spring section, and the second drive hinge spring section are configured by integrally molding engineering plastic. Scope of Utility Model Registration Claim No. 1 (Piezoelectric relay according to Sakaki Clause 1. (3) The base portion, the first arm portion, the second arm portion,
The first support hinge spring part, the second support hinge spring part, the first drive hinge spring part, and the second drive hinge spring part are integrally formed by metal gui-casting. A piezoelectric relay as set forth in claim (1) of the utility model registration claim. (4) The base portion, the first and second support hinge springs, the first and second arm portions, the first and second support hinge spring portions, and the first and second drive hinge springs. A piezoelectric relay according to claim (1) of the utility model registration, characterized in that a circular arc portion is provided at a connecting portion with a portion connected to the piezoelectric relay.