SU443492A1 - Relay distributor - Google Patents

Description

I

The invention can find application in various devices of automation, telegraphy and telephony.

Known devices on double-wound electromagnetic relays with self-holding. Such relays, in contrast to neutral ones, do not withstand continuous current through the windings and require pulsed control (after switching from a short pulse, they block themselves without energy consumption). But the known devices with impulse control of the relay through capacitive chains are complex, have high power consumption and low speed.

The proposed device differs from the known ones in that the closure contacts of each nth relay are connected via diodes to the excitation winding of the (n + 1) -th relay and recovery winding of the (n-1) -th relay, and open, combined in successive chains, respectively, an even and an odd relay, are associated with a corresponding key connecting the excitation winding of the n-and-wound recovery (n-1) -th relay to the source of pulses.

Such an embodiment of the device can reduce power consumption, increase speed and reliability.

The drawing shows a diagram of the proposed device.

The distributor contains two-winding electromagnetic relays with Pb PZ RK self-holding (when current flows through the excitation winding, the closing contact in the circuit closes and in the recovery winding it opens); the switching contacts of these relays Pl, P2. . . P n, which distributes diodes D2 D2 ... Dk (two in each cell of the distributor); Keys Ki and Kz, strobe the power windings of the relay; Trigger trigger supplying control voltage pulses t / pit to the windings.

In the initial state shown in the drawing, the keys Ki and K2 are locked by the + UUKT direction supplied from the source through the chains of the opening contacts Pj, P2. . Рп, relay windings are de-energized, contacts are released. Orientation pulse (orientation diagram not shown) trigger Tpi is thrown into a state in which the trigger arms "minus of the source are fed to the key Ki and disconnected from the key Kg, and the relay PI is switched to the state in which its contact I /,

opening the series circuit of disconnecting contacts of odd relays, disconnects the voltage + (from the key Cg n feeds it through diode D2 to the excitation winding of the next relay P2, "minus the source from which is triggered. The relay is de-energized again, the circuit is ready to receive clock pulses.

With the arrival of the first clock pulse, the trigger Tr1 switches to a state in which the "minus of the source is supplied to the public key Ka and then to the excitation winding of the relay PS. Relay PZ switches, triggered by contact P2 opens a series of disconnecting contacts of even-numbered relays, disconnecting voltage Ki + Uuai from key Ki and applying it through corresponding diodes D and Dz to the relay coil of relay PI and excitation winding of relay RZR relay PI to its initial state in which its closing contact PI in the circuit is open, the disconnecting switch is closed, and through a series of disconnecting contacts of odd relays it supplies a blocking voltage + t / pit to the key Kz, which provides the circuit of windings re le PI and P, and from the winding of the relay RZ "minus source disconnected by the trigger Tr

Further operation of the device is similar: at each clock cycle, a new relay restores the previous relay with its switching contact, and the contact of the latter, through the corresponding chain of contacts to the key, disconnects the trigger control signal from the relay windings. Disconnecting the power supply after reworking the relay ensures their normal operation and low power consumption.

Subject invention

A relay distributor containing self-holding two-winding relays and a source of control pulses is required so that, in order to reduce power consumption, increase speed and reliability, the closing contacts of each hedge relay are connected via a diode to the winding excitation (ra-jl) -ro relay and recovery winding (p-1) -th relay, and the disconnecting contacts, combined in series, respectively, the even and odd relays, are associated with the corresponding key connecting the winding winding and winding Voss The failure (ha-1) of the relay with a source of pulses.

 B-l P2

kg