SU920882A1 - Relay device - Google Patents

Description

(54) RELAY DEVICE

one

The invention relates to electrical engineering and can be used in automation devices, measuring and computing equipment.

A relay trigger is known, controlled by signals of unlimited duration, containing a remote switch and two relays, the first winding pins of which are connected to the corresponding trigger inputs, and the second pins via the closing and disconnecting contacts of the remote switch 1.

The disadvantage of this device is its narrow functionality.

The closest to the proposed technical entity is a relay device containing a multi-winding relay with self-holding and two logic elements, respectively, connected in series with the windings of the relay in two parallel - circuits, each of which is connected between the supply voltage, and the inputs of logic elements connected to the input relay device and through the closing and opening contacts to the source of the locking signal 2.

The disadvantages of the known devices are the impossibility of supplying information signals to both inputs of the device at the same time, since in this case the devices turn into generators, which leads to a rapid development of the resource upon relay operation.

The purpose of the invention is to expand the functionality.

This goal is achieved by the fact that the known relay device is additionally equipped with two sources of locking signals connected respectively to two fixed contacts of the two-position switch of the relay, and the inputs of the key elements to the input wiring.

The drawing shows a device diagram.

The device contains a multi-winding self-holding relay with windings 1 and 2 and a two-position relay switch with disconnecting 3 and closing 4 contacts, input buses 5 and 6, key elements 7 and 8, a blocking signal source 9 and additional blocking signal sources 10 and 11, minus pike power supply 12.

The windings of relays 1 and 2 are connected at one end to power bus 12, with the other through switches 7 and 8, respectively, to two input buses 5 and 6. Sources 10 and 11 through disconnecting 3 and closing 4 pins are connected to source 9.

The operation of the device can be carried out both with the supply of locking signals directly to the leads from additional sources of the locking signal to the keys 7 and 8, and without their presence.

In this case, when operating without supplying locking signals, the device remains operable in the absence of signals on the input buses 5 and 6 and with their alternate feeding. Supplying additional locking signals allows the device to remain operable even when the signals on the input buses 5 and 6 overlap in time.

The operation of the device with the supply of additional locking signals is carried out as follows.

Work in this mode provides for the simultaneous supply of an information signal to one input bar and an additional locking signal directly to the input of a key located in the circuit of the other input bus.

In the initial state, in the absence of signals on the input buses 5 and 6, the device is in one of the stable positions, the key 7 is locked with a signal coming from the source of the locking signal 9 via the disconnecting contact 3 at its input, the key 8 is de-energized.

Signaling the busbar 5 and the additional locking signal to the key 8 does not change the state of the device, since the flow of current through the winding 1 sufficient for the relay to act prevents the locked state of the key 7. The key 8 is locked by an additional signal. When switching the information signal to the bar 6 and the additional locking signal to the key 7, the locking signal is removed from the key 8, and the key 7 is locked by an additional signal. As a result, the current flows through the winding 2, the relay is activated, the contacts 4 are closed, the signal from the source of the locking signal 9 comes through contact 4 to the input of the key 8 and locks it, the current through the winding 2 stops.

The device switches to the initial state in the same way using winding 1, key 7 and pin 3 when switching the information signal to the input bus 5 ,. and an additional locking signal to the key input 8.

When information signals arrive at both input buses, and additional locking signals at both inputs of keys 7 and 8, the device does not change its state, as the keys are locked with additional locking signals earlier than the current in the corresponding winding reaches the required level to activate the relay.

The device can also be used for other purposes, for example, to create delays for tripping, tripping, tact-. nor, etc., as well as being the base for building other devices.

The proposed device, in comparison with the known, has increased reliability and enhanced functionality.

Claims (2)

1. USSR Author's Certificate No. 454700, cl. H 03 K 23/03, 1972. 2. USSR author's certificate number 517952, cl. H 01 H 47/32, 1976.