SU1073820A1 - Two-position switch - Google Patents

Abstract

A TWO-POSITION SWITCH containing two cells, each of which consists of at least one gezacon with three control windings and diodes located on it, two specified control windings are wound in parallel, the beginning of one of these control windings is connected to the end of the other , and the beginning of the third control winding, characterized in that, in order to simplify control of the device by providing control from one source of unipolar pulses, The other one of the parallel winding control windings of the first cell is connected to the cathode of one of the first cell diodes, the anode of the diode is connected to the contact part of the second cell of the hexacon and through the diode in the forward direction of the second cell is connected to the end of one of the second parallel winding control windings cell, the end of the other parallel wound control winding of the first cell is connected to the cathode of another diode of the first cell, the anode of the indicated diode is connected to the contact part of the first cell of the gezacon and A diode in the forward direction of the second cell is connected i to the beginning of the other and parallelly wound control windings of the second cell (L two other contact parts of the hexagon of both cells are connected to a terminal intended to be connected to the positive terminal of the source of control pulses, and the ends of the third The control windings of both cells are connected to an output intended for connecting the control pulses to the negative terminal of the source. ,

Description

The invention relates to automation and switching technology and can be used in automatic control systems, control, measurement and communication as a pulsed two-position switch of electrical circuits. Pulse switches of electrical circuits on electromagnetic relays are known. Such switches have a complex structure, consist of many components and, in addition, lose information when the power supply voltage fails. Pulse switches of electrical circuits on ferrid-pulsed electromagnetic switching devices with a memory on reed switches with sealed magnetic contacts are known. The devices consist of a ferromagnetic core of medium magnetic rigidity material, control windings and magnetically controlled contacts 2. These devices are structurally simpler than those indicated, but they have relatively large dimensions and weight due to the presence of the core and are difficult to control, which limits their use . They are controlled either from a single source of bipolar pulses, or from two sources of unipolar pulses. The closest is a two-way switch containing two cells, each of which consists of at least one hexagon with three control windings and diodes located on it, two specified control windings are wound in parallel, the beginning of one of these control windings is connected with the end of the other, and the beginning of the third control winding 3 is connected to the point of their connection. However, a bipolar pulse source is required for this two-position switch to operate. The aim of the invention is to simplify the control of the device by providing the possibility of controlling single-pole pulses from a single source. The goal is achieved by the fact that in a two-position switch containing two cells, each of which consists, at least of one, of a gezacon with three control windings and diodes located on it, two specified control windings are wound in parallel, the beginning of one of these controls The windings are connected to the end of the other, and the beginning of the third control winding is connected to the point of their connection, the beginning of the other of the parallel cell winding parallel windings of the first cell is connected to the cathode of one of the diodes The cell, the anode of the indicated diode is connected to the contact part of the second cell, and through the diode in the forward direction of the second cell is connected to the end of one of the parallel wound control windings of the second cell, the end of the other parallel wound control winding of the first cell is connected to the cathode of the other diode the first cell, the anode of the indicated diode is connected to the contact part of the first cell of the gezacon, and through another diode in the forward direction of the second cell is connected to the start of another of the parallelly wound control windings in The second cell, two other contact parts of the gezacons of both cells are connected to a terminal for connecting control pulses to the positive terminal of the source, and the ends of the third control windings of both cells are connected to a terminal for controlling pulses on the source terminal. FIG. 1 is a diagram of a two-position switch switching a direct current load; in fig. 2 - the same, switching load of both direct and alternating current. A two-way switch consists of two identical cells, each of which switches its load. Each cell includes a gezak G, (G) or two gezakon P, 1 (,), on which are installed three control windings WJ, V / i HWj (W, W, j, Wj), respectively. The two windings Wi and Wj are wound parallel to each other and have the same number of turns. The common point of these two windings is connected to the beginning of the third control serial winding Wj, the end of which is connected to the negative (common) point of the circuit. The beginning of the first parallel control winding Wj is connected to the cathode of the diode Dj, the anode of which is connected to the detol contact of the gezacon fj of the second cell and through the diode DJ of the second cell in the forward direction to the end of its parallel control winding. The end of the second parallel wound control winding Wj of the first cell is connected to the cathode of the second diode Dj of the first cell, the anode of which connects the contact of the first cell to the second cell and through another diode Dj of the second cell in the forward direction cells The other contact parts of the gezacons of both cells G and C are interconnected and connected to the positive terminal of the generator of unipolar control pulses (GOI). The loads of both cells R and RHJ through diodes D and are connected to the sources of direct current UH and UH

the contacts of the corresponding FIZones FI and. Thus, the switching of loads is carried out by the gezakons, and the separation diodes do not pass the control current pulses into the load. For switching AC loads, a similar switch is used, but with two laws in each cell (Fig. 2).

The initial state of the on-off switch is carried out by applying a setting pulse (the start pulse of the 1np transformations to the control winding W or Wj of the corresponding cell. The two-point switch switches on one load while simultaneously turning off the other under the action of each working single-pole control pulse entering the input switch from one GOI.

The operation of the on-off switch is as follows.

Setting the two-way switch to the initial state is carried out by applying a pulse of the beginning of transformations 1ip (setting pulse) to the installation input of the corresponding cell. Let this impulse be fed to the input of cell 1 (1np,). It passes through the control windings Wz and Ws of the first cell and ensures that the first cell triggers, i.e., the closure of the hexazones T (T) and the switching on of the load RHJ. In this state, the two-way switch is in place until the first operating control pulse, ly, arrives. The first working control pulse lyf from the generator of unipolar pulses (GOI) passes through the closed contacts of the gezacon T and follows two chains. The current pulse passes through the diode D / of the second cell and enters the windings and W, and triggers it. the gezacons (G) are triggered, which ensures that RH.J. Another component of the current pulse through the diode Dj enters the windings Wa and Wj of the first cell. Compensation of magnetic fluxes to the contact of parts of the gezacons P (Fj), demagnetization of the contact parts and their release occurs. This causes the load on the first RHJ cell to be turned off. This state of the switch is also stable.

The next control pulse ly GOI through the closed contacts of the gezacon D) of the second cell through diode D enters the windings Wj and Wj, which leads to demagnetization of the contact part of the lees of FI (G,) and their release - switching off the RHJ load, through diode D / enters the windings Wj and Wz of the first cell and ensures the activation of the hexagon G (Fj) and the inclusion of the load Rjj of the first cell. Thus, the circuit returns to its original state, completing the full cycle of operation. Further, the cycles of operation are repeated in a similar manner. The duration of the control pulses should not exceed the response time of the gezacon.

The technical and economic effect of the proposed solution is that it allows you to implement cost-effective impulse control from one generator of unipolar pulses, simplifying the control circuit of the device, and reduce the cost of their implementation. In industry, remote switching switches (PD) of the RPS type are used as devices implementing similar functions. They have a ferromagnetic core, control windings, moving and fixed contacts (contact system) and mechanical locking positions. Driven by pulses from two GOI. In comparison with the DP, the proposed remote switch has 30–40% smaller dimensions and weight, since the core and position locks are missing, higher reliability and service life, since the sealed magnetic contacts have 50–100 times more commutation than with ordinary contact systems.

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Claims (1)

TWO-POSITION SWITCH containing two cells, each of which consists of at least one hezakone with three control windings and diodes located on it, two of these control windings are wound in parallel, the beginning of one of these control windings is connected to the end of the other, and to the point of their connection is connected to the beginning of the third control winding, characterized in that, in order to simplify control of the device by providing the ability to control from a single source of unipolar pulses, the beginning of one of the parallel winding control windings of the first cell is connected to the cathode of one of the diodes of the first cell, the anode of the specified diode is connected to the contact part of the heacon of the second cell and through the diode in the forward direction of the second cell is connected to the end of one of the parallel winding control windings of the second cell, the end of the other parallel to the wound control winding of the first cell is connected to the cathode of another diode of the first cell, the anode of the specified diode is connected to the contact part of the hezacon of the first cell and through another diode directly m direction of the second cell is connected to the beginning of another and? § parallel to the wound control windings of the second cell, the other two contact details of the hezakons of both cells are connected to the output intended for connection to the plus terminal of the source of control pulses, and the ends of the third control windings of both cells are connected to the output intended for connection to the negative terminal of the source control pulses. ,>