SU955275A1 - Relay device - Google Patents

Description

(5 4.) - RELAY DEVICE

one.

The invention relates to electrical engineering and can be used as a relay contact trigger.

A device for controlling a polarized remote switch is known, having a four-winding remote switch with magnetic self-holding contacts, a transistor, control keys and two separation diodes Cl.

This device is intended only for a four-winding polarized remote switch and cannot control the two-winding remote switch, since for its operation it requires two additional control windings.

The closest in technical essence to the present invention is a relay device containing a two-winding electromagnetic relay with a self-holding switching contact connected to a common wire, storage capacitors, charging and discharge resistors, shunt and separating diodes and closing contact C2.

The disadvantage of such a device is a large power consumption, since part of the energy is spent on the charging resistor during the charging of the solenoid capacitor through the coil of the electromagnetic relay, and much of the energy is lost on the same resistor during preparation for switching qvd

to contact is closed.

The purpose of the invention is to reduce the energy required.

15

This goal is achieved by the fact that a relay device containing a self-holding two-winding electromagnetic relay, one of the conclusions about which the windings are connected to one of.

20 . terminals for connecting the power source, the other terminal for connecting which is connected to the moving element of the switching contact of the specified relay, is equipped with two transistors, the collector of one of which is connected to the other end of one of the relay windings, the collector of the other to the other end of the other winding of the relay, emitters are connected with a different terminal

Claims (2)

30 to connect the power source. and the base - with fixed elements of the switching contact. During operation, the base of the transistor involved in the switching, at the end of the switching process, closes with the emitter and the common wire, as a result of which the transistor is locked and the winding de-energizes. The drawing shows a diagram of the device. The device has a two-winding electromagnetic relay 1 with self-holding, the windings of which are bridged by diodes 2 and 3, switching transistors 4 and 5, a moving contact 6 connected to the common wire 7, for switching 8 and disconnecting 9 contacts of relay 1 and resistors IO-13.v x bases of transistors 4 and 5. In the initial state, transistors 4 and 5 are closed. When a transistor 4 is applied to the base through a control current resistor 10, it opens, relay 1 starts switching. At the beginning of the switching process, the moving contact b disconnects the base of the transistor 5 from the wire 7, preparing it for the reverse switching. At the end of the switching process, a moving contact b connects the base of the transistor 4 involved. In switching, the closing contact -8 is connected to the common wire 7, while the transistor 4 closes, de-energizes the winding of the transistor 5, the reverse process switching occurs in the same way, and the control current to the base of transistor 4 should not be supplied. Diodes 2 and 3 serve to reduce the self-induction voltage spikes that occur at the time of closing the switching transistors 4 and 5, and resistors 10-13 provide the mode of operation of these transistors. The application of the proposed device will allow reducing the consumed capacity in comparison with the prototype due to the fact that the total power of the platform is mainly for switching. Claims of the invention A relay device comprising a self-holding two-winding electromagnetic relay, one of the terminals of each winding of which is connected to one of the terminals for connecting a power source, the other terminal for connecting of which is connected to a moving element of the switch of the relay contact, different in order to reduce power consumption. energy, it is equipped with two transistors, the collector of one of which is connected to the other output of one of the windings of the relay, the collector of the other to the other output of the other winding and the relay, the emitters are connected to another terminal for connecting the power supply, and the bases to the fixed elements of the switching contact. Sources of information taken into account during the examination 1. USSR author's certificate No. 668024, cl. H 01 H 47/00, 1973. 2. USSR author's certificate number 426255, cl. H 01 H 46/00, 1973.