SU421128A1 - RELAY DISTRIBUTOR - Google Patents

Description

one

The invention is intended for use in devices for automation, control, telemechanics, computational mechanics, and communications.

A distributor is known that contains cells on electromagnetic relays and capacitors, two buses, one of which is connected to even-cell electromagnetic relays, and the other to odd-cell electromagnetic relay, a blocking bus, resistors, and isolating diodes.

However, in such a distributor there is no synchronization of the input of the device with the operation of the relay, stringent requirements are imposed on the duration of the control pulses, all of which limit the choice of the relay and reduce the speed and reliability of the distributor.

In the proposed distributor, in order to increase its speed and reliability in operation, the targets are connected from the series-connected capacitors and resistors to the opposite terminals of the windings of the adjacent electromagnetic relays. The connection point of the capacitor and resistor of each cell is connected via a normally open contact of the electromagnetic relay of the cell to the blocking bus and through a normally closed contact of the same relay and the isolating diode is connected to the coil of the electromagnetic relay of the next cell. The buses of even and odd cells are connected to the minus terminal of the power source via decoupling diodes, the blocking spike is connected to the positive terminal of the power source through the additional AND and NO bus circuits, and between the buses of the even and odd cells and the blocking bus through other dissociating diodes an additional circuit is included "And, the output of which is connected to the scheme" AND - NOT.

The drawing shows the scheme of the proposed distributor. It contains a control (synchronization) circuit 1, performed, for example, on an AND-NOT circuit, an AND 2 circuit of detecting the state of main relays, windings 3i-3t, electromagnetic relay, contacts 3i-3 "relay, capacitors 4i-4p, Diodes 5i-5,

Diodes 6-9 and resistors 10, -10 ".

In the initial state, all relays are de-energized. To bring the circuit to working condition

PA input A is fed and .1 a pulse of the corresponding polarity. In this case, the relay 3i is activated and becomes self-locking on the circuit: the relay contact is the resistor lOi, the relay 3, and the diode 6, the circuit closes the charge circuit of the capacitor 4i on the circuit: the relay contact 3i, the capacitor 4i diode 7.

Distribution control circuit 1 stores the state of clock input B, corresponding to the absence of clock pulses. The circuit is ready to go.

With the arrival of the next clock pulse at the input B of the distributor control circuit 1, its state is memorized. The distributor control circuit de-energizes the lockout bus relative to the power source by shunting or disconnecting the power source. In this case, the blocking bus is also de-energized with respect to the bus of odd cells, and with respect to the bus of even cells it is under the potential of the power source due to the charge of the capacitor 4i.

The circuit "And detecting the state of the main relays 2" outputs a signal to the control circuit of the distributor 1 only after the bus bus is completely de-energized, i.e., after a break. about. lock contacts Sl. The input of the circuit is underestimated until the input (clock) pulse is terminated, and the memory circuits are reset, and the power supply voltage is again applied to the lock spike.

To increase the speed of the distributor, the value of resistors lOi, 102 is chosen such that the holding current is close to the release current, but taking into account the safety factors and the spread. After wiping off the relay 3i it N. contact 3i closes the value of the discharge of capacitors 4i to the winding of the relay 82. Since the resistance of the resistor 102 is greater than the resistance of the relay winding, the discharge through the relay windings of the following cells is neglected. Relay 82 is activated, becomes locked and closes the charge point of capacitor 42. After charging capacitor 4, the circuit is ready to receive the next clock pulse. Further work of the distributor is similar.

Subject invention

Relay distributor, containing cells on electromagnetic relays and capacitors, two buses, one of which contains electromagnetic relays of even cells, and the other - electromagnetic relays of odd cells, a blocking bus, resistors and isolating diodes,

that, in order to improve performance and reliability in operation, the values of series-connected capacitors and resistors are connected to opposite terminals of the windings of neighboring electromagnetic relays, point

connect capacitor n resistor of each cell through a normally open contact of the electromagnetic cell relay connected to the blocking bus and through the normally closed contact of the same relay and the breaker

the diode is connected to the winding of the electromagnetic relay of the next cell, the buses of even and odd cells are connected to the minus terminal of the power source through isolating diodes, the blocking bus is connected to the positive

The power supply terminal through the additional AND circuit is AND, NOT, and between the even and odd-numbered cells and the lockout bus through other isolating diodes, the additional AND circuit is enabled, the output of which

connected to the “AND - NOT.