SU416791A1 - - Google Patents

Description

one

This invention relates to electroautomatics and can be used in automatic control systems.

Switches are known that contain a series of single-winding electromagnetic relays, a source of excitation pulses, two excitation buses, one of which is connected to the windings of odd relays, and the other even-numbered through parallel connected own contacts and contacts of the previous one, respectively, an even or odd relay.

However, the well-known switches have insufficient reliability and limitations.

The aim of the invention is to improve the reliability and diversity of the capabilities of the device.

For this, the contacts of the previous relays are connected to the corresponding exciter bus through a diode keyed into the wire and in the direction, and the cathode of the diode is connected through a capacitor to a common point of the collider.

The drawing shows a block diagram of co:.; Mutator.

The switch contains four (for simplicity) electro;; 1 nt 1 t relay 1-4 relays, locking pins 1 / 1-4 / 1, 1/2 - 4/2 relays i-1, a source of excitation pulses, for example, a multivibrator 5, keys 6, 7 outputs of the multivibrator, diodes 8, 9, capacitors 10,

;one. pas i: e shows the launch chain; y ta tor

The switch works as follows.

Let G be a key at some time.

open, relay 1 energized ii blocked

. pins 1/1 through dnod 8 and key 6.

The iO cooper is a discharge.

3 the following pier: the time entrant is key 6, and the key is 7 wk; When this starts, the charge of the condemnsor 10 through the cover of the relay; i its pins i 1 and the voltage E will be; 10, there will be 3 excited states at a time. ;: tachititel by more time off

. i / 2 and open; key 7 is locked by its contacts, and 2/1 through diode D and key 7. Nonequality; go: ia; whether: it is not the case of a relay ;;;; winding re, 1E 3 through the contact;: iTc v to the anode of the diode 8. Diode 8 b: and d, the proof of the charge condition of the charge capacitor iO through the winding contacts 2/2.

It operates through the contacts 2/2 and is blocked by the contacts 3/1 of the relay 3, the capacitor 10 is discharged, and the relay 2 will be in the excited state due to the charge of the capacitor And through the winding of the relay 2 and the contacts 2/1.

All subsequent relays are turned on and off in the same way.

Selecting the capacitance values of the capacitor 10, And can practically provide for any type of relay, a significant excess of the release time of the relay over the operation time. It is necessary only for normal operation of the switch so that the previous relay, for example, relay 2, is de-energized earlier, because the next relay is de-energized, i.e., relay 2.

In the case of using a conventional line contact for switching the excitation lines in the proposed m switch, no special devices are required to exclude the simultaneous loss of power.

At the time of the flight of a linear contact, it is also an advantage of the proposed switch.

Subject invention

Ko;) a mutator containing electromagnetic relays, a source of excitation pulses, keys, two excitation buses, one of which is connected to the windings of odd relays, to the other even through parallel-connected: e closing own contacts and contacts of the previous, respectively, even, odd relay, differing For example, in order to increase the reliability and expand the capabilities of the device, it contains the contacts of the following relay relays. and is connected via a capacitor to the common point of the switch.

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