SU1411965A2 - Switching device - Google Patents

Abstract

The invention can be used to manage loads according to a predetermined program. The purpose of the invention is to increase the speed of control. The switch contains a transistor 5, switching diodes 6-1-6-p and 7-1-7-p, Zener diode B and time setting capacitors 10-1-10-p. Winding 3-1-3-p electromagnetic relays include switching contact groups 4-1-4-p. The introduction of the control button 11 with the switching contact group and the formation of new functional connections provide an accelerated shutdown of the switch and its resetting to the initial state. 1 il.

Description

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I The invention relates to a pulse technique, can be used, l control of loads (relays) according to the program, and is an improvement 11: the invention of the invention by author. N 1081795.

The purpose of the invention is to increase the control efficiency by providing the possibility of disconnecting windings 1; and each relay at any time and accelerating the discharge, set the time (of their capacitors).

The drawing shows the electrical circuit diagram of the switch.

The switchboard contains busses 1 and 2 of the power supply, and in each of the 1st to the 5th; winding switching cells (3-1) - (3-n) electromagnetic relays with switching: ontact group (4-1) - (4-n). The bus 1 power supply through the collection of the collector 1 op - emitter of the transistor 5 is connected to the combined terminals of the relay windings, the other conclusions of the windings through

the first switching diodes (6-1) - 6-p) are connected to the disconnecting contacts of the contact groups of the relay of the previous cells and through the second switching diodes (7-1) - (7-p) are connected) the common point, which is connected via Zener diode 8 with transistor base 5 connected to its collector through a resistor 9. The closing contacts of the contact groups of all relays are connected to bus 2, their common contacts are with the terminals of the respective time of the driving capacitors (10-1) - (10 -n),; - their conclusions are combined and in the 1-position contacts of the additional control button 11 dineny to iiwHe 1. e Zamykayush contacts button 1 included between the joint 1 and the Output capacitors and the common point of diodes compound (7-1) - (7-n).

For initial recording of information, a switch 12 is used. 1l of limiting currents in the charge circuit of a capacitor can include a source 13, and in a discharge circuit - a resistor 14, to ensure continuous switching, the switch can be closed (contact group 4-n Electromagnetic relay of the n-th cell is included in the circuit of the first cell).

The switch works as follows;

In the initial winding (3-1 (3-p) of all electromagnetic turnips

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de-energized. For the initial recording of information, press the switch 12. The capacitor (10-1) of the first cell is charged until the voltage of the power source along the circuit: 1 1 — button 1 1 — capacitor 10-1 — switch 12 — resistor 13 — bus 2. When returning switch 12 to the initial position, the current flows through the circuit: capacitor 10-1 - button 11 - transistor 5 - winding 3-1 - diode 5-1 - contact group 4-n - switch 12 - capacitor 10-1. The voltage across the winding 3-1 of the first cell is determined by the voltage stabilizing the Zener diode 8 and there must be at least the relay switching voltage. The relay of the first cell triggers and switches the contacts of its contact group 4-1, included in the circuit of the second cell. The capacitor 10-2 of the second cell is charged before the voltage of the power source along the circuit: bus -1 - button 11 - capacitor 10-2 - contact group 4-1 - resistor 13 - bus 2. When the voltage on the capacitor 10-1 decreases, cells to a value less than the return voltage of the first cell relay, the latter is turned off, and the contacts of its contact group 4-1 return to their original position. A current flows through the circuit: charged capacitor 10-2 - button 11 - transistor 5 - winding 3-2 - diode 6-2 - contact group 4-1 - capacitor 10-2. The relay of the second cell is activated and switches the contacts of its contact group 4-2 (not shown) included in the circuit of the third cell. The capacitor 10-3 (not shown) of the third cell is charged before the voltage of the power source.

In the future, the switch works the same way.

The voltage applied to the windings (3-1) - (3-n) of the electromagnetic relay is determined by the stabilization voltage of the Zener diode 8. At any voltage of the power supply (and hence the voltage of the charged capacitors 10-1-10- p) the voltage on the windings (3-1) - (3-n) is equal to the stabilization voltage as long as it is lower than the voltage of the charged capacitor, thereby ensuring a constant current through the relay windings. Changing the switching frequency is provided by varying the voltage of the power supply.

Switching off the switch at any time (for example, if it is necessary to stop the program and start it from the beginning) is performed by pressing the control button 11. Let the first cell relay be turned on, the capacitor 10-1 is discharged through the winding 3-1, and the capacitor 10-2 of the second cell is charged before the voltage of the power source through the included contact group 4-1. Then, when the button 11 is pressed, its contacts are switched, the winding 3-1 loses power, the role of the first cell is turned off, and the contacts of its contact group 4-1 return to their original position. The capacitor 10-1 is discharged along the circuit: the capacitor 10-1 — button 11 — the resistor 14 — the diode 7-1 — the contact group 4-n — the capacitor 10-1, and the capacitor 10-2 discharges along the circuit: the capacitor 10-2 - button 11 - resistor 14 - diode 7-2 - contact group 4-1-capacitor 10-2. After releasing knoggle 11, the switch returns to its original state and is ready for the next start.

Thus, an accelerated shutdown of the switch and its resetting is provided, which increases the control efficiency.

Claims (1)

Invention Formula Switchboard auth. No. 1081795, about t-l and those that, in order to increase control efficiency, an additional control button with a switching contact group was added, the opening contacts of which are included in the connection circuit of the combined pins of the time reference capacitors to the power bus, and the short-circuit contacts between the combined pins are the time of the reference capacitors and the common junction point of the second switching diodes.