SU1363323A1 - Electrostatic relay - Google Patents

Abstract

The invention relates to electrical engineering and can be used for switching electrical circuits in automation, signaling and communication equipment in various areas of the national economy. The purpose of the invention is to increase the reliability of the relay and reduce energy consumption. When voltage is applied to the electrodes 5 and 8 from the power supply, a volumetric increase in the electrorheological suspension 3 occurs due to its structure formation. As a result, the elastic membrane 4 together with the electrode 5 is bent and firmly pins contact 6 to the fixed contact 7, the circuit is switched. After the stress has been relieved by the action of the elastic forces of the membrane 4, the contact 6 returns to its original position. 1 il. (С (Л tf copmut. Set f ucmovHu- fiynanpfl - f eHUff 00 Gft ОО 00 ю

Description

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The invention relates to electrical engineering, and can be used for switching electrical circuits in automation, signaling and communication equipment in various areas of the national economy.

The purpose of the invention is to increase the reliability of the relay and reduce energy consumption.

The drawing shows an electrostatic relay, a longitudinal cut.

The relay contains a dielectric base 1 in which a cavity 2 is made, filled with an electrorheological suspension 3, a membrane 4 located on one side of cavity 2 (a layer 5 of electrically conductive material is applied to the surface of the membrane facing cavity 2), a movable contact 6 mounted on another side of the membrane 4, and a fixed contact 7. Electrically conductive layer 8 is applied to the bottom of cavity 2, and conductive layers 5 and 8 perform 25 as electrodes intended to be connected to a voltage source.

The relay works as follows.

The electrodes 5 and 8 are supplied with voltage from a source (not shown). Due to the structure formation of the electrorheological suspension, under the influence of an external electric field, its volumetric increase (electrodilatance) occurs, and the elastic forces of the membrane 4 contact 6 return to their original position.

The magnitude of the contact movement along the normal depends on the composition of the electrorheological suspension, the material and the diameter of the membrane, on the voltage applied to the electrodes. For example, for 50% (by weight) suspension of diatomite in transformer oil, with an interelectrode gap of 1 mm and a voltage of 1 kV, the distance between the contacts can be set in the range of 0.1-0.2 mm. The response time of the relay is 2-10 seconds. The power expended on moving the contact is very small, since the maximum current does not exceed 5 μA.

Electromechanical relay containing a membrane, a fixed contact, a movable contact mounted on a membrane, and a dielectric base, characterized in that, in order to increase reliability and reduce energy costs, a cavity is formed in the dielectric base , filled with electrorheological suspension, the membrane is located on one side of the cavity and on its surface facing the cavity a layer of electrically conductive material is applied, the movable contact is installed on the other side of the membrane, and at the bottom about p20

On the membrane 4, together with the electrode 5, a conductive layer is applied to the cavity.

bending, tightly presses the contact b to the fixed contact 7, thereby closing the switching circuit. After relieving stress

Editor L. Veselovska Order 6370/46

Compiled by S. Khromov

Tekhred l, Oleynik Proofreader o. Kravtsov

Circulation 697 Subscription VNIIPI State Committee of the RSSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

0

five

25

the elastic force of the membrane 4 pin 6 returns to its original position.

The magnitude of the contact movement along the normal depends on the composition of the electrorheological suspension, the material and the diameter of the membrane, on the voltage applied to the electrodes. For example, for 50% (by weight) suspension of diatomite in transformer oil, with an interelectrode gap of 1 mm and a voltage of 1 kV, the distance between the contacts can be set in the range of 0.1-0.2 mm. The response time of the relay is 2-10 seconds. The power expended on moving the contact is very small, since the maximum current does not exceed 5 μA.

25

Electromechanical relay containing a membrane, a fixed contact, a movable contact mounted on a membrane, and a dielectric base, characterized in that, in order to increase reliability and reduce energy costs, a cavity is formed in the dielectric base , filled with electrorheological suspension, the membrane is located on one side of the cavity and on its surface facing the cavity a layer of electrically conductive material is applied, the movable contact is installed on the other side of the membrane, and at the bottom about 0

the electrically conductive layers on the membrane and on the bottom of the cavity playing the role of electrodes intended for connection to a voltage source.

Claims (1)

2Q Formula and inventions An electrostatic relay containing a membrane, fixed contact, a movable contact mounted on the membrane, and a dielectric base25, characterized in that, in order to increase reliability and reduce energy consumption, a cavity is filled in the dielectric base, filled with electrorheological suspension 2Q, the membrane is located on one side of the cavity and on its surface facing the cavity, a layer of electrically conductive material is applied, a movable contact is installed on the other side of the membrane, and ³⁵ on the bottom a conductive layer is deposited, and the conductive layer on the membrane and on the bottom of the cavity acts as electrodes for connecting to a voltage source.