SU1277243A1 - Switching device - Google Patents

Abstract

The invention relates to switching and measuring technology. The purpose of the invention is to increase the reliability of j9 f / 7-fj-i / f acKOi 4 b2O operation. To disconnect a previously activated relay in any of the stages without turning on the relay in another cell, it is necessary to switch the general reset key 19. When this happens, contacts 17, 18 are open and the switched on relay is turned off. Thus, the invention makes it possible to control the switching on of the relay in any sequence with the preliminary disconnection of the previously inserted high relay immediately after the opening of the control key contacts. 1 il. fr-u ffacf cfff 4 (L 17 18 Yu NJ Yu 4 00

Description

The invention relates to switching and distribution technology and can be used in measurement technology and other automation and remote control equipment. The aim of the invention is to increase the reliability of the switch. The figure shows a schematic diagram of the switch. The switchboard contains five cells, each of which has two inputs 1 and 2 and two outputs 3 and 4, and consists of a relay 5 with opening 6 and 7 and closing 7-10 contacts, as well as a control key 11 with closing 12 and 13 and opening 14 and 15 pins. In each cell, the input j through the closing contacts 9 and 10 of relay 5 is connected to output 3, and through the closing contacts 12 and 13 of the control key 11 to the first output of the relay coil 5 and to the closing contact 8 of relay 5. Input 2 is connected to E.torm the output of the relay coil 5, and through the series-connected unloading contacts 14 and 15 of the control key 11 and the disconnecting contacts 6 and 7 of the relay 5 - with the output 4. In addition, the switchboard contains power supply ports for connecting the power source, whose output 16 is through the opening contacts 17 and a 18-key 19 general reset is connected to input 2 pos the longest cell, and vshod 20 - from the house 1 of the first cell. Input 2 of each cell, except the last one, is connected to output 4 of the next cell. Inputs 1 of all are connected, and outputs 3. Of all cells are combined and connected to exit 4 of the first cell. The switch works as follows. In the initial state, relays 5 are disabled in all cells. When switching the control key 11 to any of the switch cells (for example, in the 2nd), pins 14 and 15 are opened and pins 12 and 13 are closed. About the coil of relay 5 in the 2nd cell, it receives power through the output 16 circuit - contacts 17 and 18 - input 2 in the pth cell - contacts 14 and 15 in the pth cell - contacts 6 and 7 in the nth cell - output 4 in the nth cell - input 2 in (n-1) -th cell. - pins 14 and 15 in (n-1) -th cell -.contacts 6 and 7 in -1) -th cell - output 4 volts. (n -) - th cell ... - input 2 in 2- the first cell - winding 432 barely 5 in the 2nd cell - contacts 12 13 in the 2nd cell - input 1 in the 2nd cell - view 20. Relay 5 in the 2nd cell cracks, closes its pins 6 and 7 and closes its pins 7, 8 and 9, 10. At the same time, pins 12 and 13 of the control key 11 are shunted in the 2nd cell and the relay 5 becomes self-locking. When returning the control key 11 in the 2nd cell to the initial position, relay 5 in the 2nd cell remains plugged, receiving power through the circuit output 16 - contacts 17 and 18 - input 2 in the p-th cell - contacts 14. and 15 in p- the first cell - contacts 6 and 7 in the nth cell - output 4 in the nth cell - input 2 in (n-1) - “th cell - contacts 14 and 15 in (n-1) –and the cell - contacts 6 and 7 in (n-1) -th cell - output 4 in (n-1) -th cell - (n-1) -and cell - ... input 2 in the 2nd cell - relay 5 winding in 2- the first cell - contacts 7 and 8 in the cell - output, 4 in the 2nd cell - input 2 in the 1st cell contacts 1.4 and 15 in the 1st cell - contacts 6 and 7 in the 1st cell - output 4 in 1- th whose ke - output 3 in the 1st cell 3 in the 2nd cell - pins 9 and 10 in the 2nd cell - input 1 in the 2nd cell - step 20. To activate relay 5 in any other cell, for example, ( n-1), it is necessary to switch the control key 11 in this cell. When this is done, contacts 14 and 15 are opened and the relay coil 5 in the second cell loses power. If before that relay 5 was turned on not in the 2nd, but in any other cell (for example, in the 5th), then it also turns off immediately after the contacts 14 and 15 are opened, since the circuit between terminals 16 and 20 is broken. power source. In the course of further switching of the control key II in the (nth cell, it closes its pins 12 and 13. The winding of the relay 5 in the (n-1) th cell receives power through the pin 16 circuit - pins 17 and 1B - input 2 in p th cell - pins 14 and 15 in the nth cell - pins 6 and 7 in the nth cell 4 in the nth cell - input 2 at (n-1) th cell - relay winding 5 at (n-1 ) -; th cell - pins 12 and 13 in (n-1) th cell - input 1 in (n-1) th cell - output 20. Relay 5 in (n-1) th cell bounces AO, opens its

pins 6 and 7 and closes its pins, 8 and 9, 10. At the same time, pins 12 and 13 of control key 11 in the (n-1) cell are bridged and relay 5 becomes self-locking.

When returning the control key 11 in the (p-1) cell to the initial position of the relay 5 in the (p-1) cell, and the cell remains on, receiving power through the output circuit 16 — pins 17 and 18, input 2 in the p-th cell — contacts 14 and 15 in the p-th cell - contacts 6 and 7 in the p-th cell - code 4 in the n-th cell - input 2 in (n-1) -th cell - winding of the relay 5 in (n-1) -th the cell contacts 7 and 8 in (and -Oh cell output 4 in (n-1) -th cell - ... input 2 in the 2nd cell - pins 14 and 15 in the 2nd cell - contacts 6 and 7 in the 2nd cell - output 4 in the 2nd cell - input 2 in the 1st cell - contacts 14 and 15 in the 1st cell - contacts 6 and 7 in the 1st cell - output 4 in the 1st cell - out d 3 in the 1st cell - output 3 in (n-1) and cell - contacts 9 and 10 in (n-1) -th cell - input 1 in (n-1) -th cell - output 20.

To disconnect a previously turned on relay in any of the stages without turning on the relay in another cell, you need to switch the general reset key 19. At that, contacts 17 and 18 open and the switched on relay is turned off.

Thus, the proposed switch will make it possible to control the switching of relays in a sequence in any of the switch cells with a preliminary disconnection of the previously switched on relay immediately after opening the control key contacts.

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the invention

Formula

A switch containing leads for connecting a power source, a common reset key and a cell, each of which has two inputs and two outputs, and consists of a relay with closing and opening contacts and a control key with closing and disconnecting contacts, each with a control key the cell is connected to the melody by the first input of this cell and the first output of the relay coil of this cell connected to the closing contact of the specified relay; the second output of the relay coil in each cell is connected to the second input of this cell and From the openings of the control switch key, the second input: The cell, besides the last, is connected to the second output of the next cell, the first input of the first cell is connected to one of the terminals for connecting the power supply, the second input of the last cell is connected to the common reset key Another terminal for connecting the power source, characterized in that, with a circuit to increase reliability of operation, the relay in each cell is provided with an additional closing contact, which is connected between the first, input and first output of this cell, 11chem other terminal of the interrupter contact control switch is kazh .doi cell through the break contact of the relay cell connected to the second output of said cell, the first inputs of all cells combined and soedi-. with the second exit of the first cell.

Claims (1)

Claim A switch containing leads for connecting a power source, a common reset key and η cells, each of which has two inputs and two 'outputs and consists of a relay with make and break contacts and a control key with make and break contacts, and the make contact of the control key in each cell is connected between the first input of this cell and the first output of the relay winding of this cell connected to the make contact of the specified relay, the second output of the relay winding in each cell is connected to the second input of this cell and to one m from the conclusions of the NC contact of the control key, the second input of each cell, except the last, is connected to the second output of the next cell, the first input of the first cell is connected to one of the terminals for connecting the power source, the second input of the last cell through the general reset key is connected to another output for connecting a power source, characterized in that, with a circuit to improve reliability, the relay in each cell is equipped with an additional make contact connected between the first, input and first output of this cell, we take the other output of the NC contact of the control key in each cell through the NC contact of the relay of this cell is connected to the second output of the specified cell, the first inputs of all cells are combined and connected to the second output of the first cell.