SU1319108A1 - Multiposition selector switch - Google Patents

Abstract

The invention relates to switching technology and can be used in automatic control, monitoring, measuring and communication systems. The aim of the invention is to multiply the dimensions and mass of the switch and increase reliability. The multi-position switch is made in the form of a multi-bit shift register, each bit (cell) of which is a two-winding ferrid with internal memory with at least three closing hezakona, two of which switch internal circuits, and the third external load. The connection between the components of the switch (both the coil and the gezakonami) is such that it allows the sequential switching on and off of the cells and their loads after the initial state is set. Structurally, each discharge is made as a separate module (element), the number of which in the switch can be any and is chosen from the required number of sequentially switched loads. 1 h. n. f-ly, 3 ill. $ W oo; about with

Description

The invention relates to switching technology and can be used in automatic control systems, control, measurement and communication of various branches of technology as a multi-position switch of sequential operation, controlled by short-term single-field pulses.

The aim of the invention is to reduce the size and weight of the switch, increase the reliability of its operation, as well as provide a cyclic mode of operation.

FIG. Figure 1 shows the switch over circuit; in fig. 2 - cyclogram of the functioning of the switch; in fig. 3 - the same, in a cyclic mode.

The switch (Fig. 1) consists of n bits (cells) according to the number of positions (external switched loads) and is an n-bit shift register. Each cell of the switch is made in the form of a double-winding ferrid with internal memory and consists of three closing hezzacons — sealed magnetically controlled contacts with memory G | , Г and РЗ on which two control windings are placed: actuation and release Wo., N. The windings are wound counter and each of them is placed on the rug of the flask of the gezacons. The gezacons G and G in each cell are intended for switching the internal circuits of the switch. Gezakon P commutes the external circuit of the cell. The ends of the windings of operation of all cells are interconnected with leads for connecting a zero potential, connected to the negative terminal of the generator of unipolar control pulses (GI). One of the contact details of the gezacons of all the cells are connected and connected to the output for connecting the zero potential. Another contact detail of the gezacon Z in each cell is connected to the beginning of the release winding of the own electrical section cell. One of the contact parts of the gezacon Gg of all the cells are connected to each other and form an input "Bx switch, which is connected to the positive terminal for connecting the CG. Another contact part of the gezacon, each cell, is connected to the end of the release cell winding of its own cell and through the diode D of its own cell in the forward direction with the start of the winding of the actuation of its own cell. In addition, the specified contact part of each cell, except the last one, is connected to the start of the operation winding Wcp of the next cell. The start of the first cell actuation winding is connected to the output for connecting the positive terminal of the trigger pulse generator (setting pulse). Ensuring cyclic operation

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A switch is achieved by connecting the end of the release winding Wom.n of the last cell through an additional diode D in the forward direction with the start of the WCP actuation winding of the first cell.

Each cell is made as a separate structurally complete element (module) in a separate package with leads, the connection of which is carried out in the manner described. The number of switch cells can be infinitely large. The device is controlled by short-term unipolar pulses of a duration that is shorter than the response time of the gezacons at intervals, longer than the response time of the gezakon.

The switch works as follows.

In the initial state, the switch circuit is de-energized, the contact parts of the hexa- gons of all cells are open, the loads are turned off. The operation of the switch begins with the supply of a pulse of the onset of conversion (cnp) supplied to the winding of the first cell by the WCP. It produces the magnetization of contact details of the gezakons of cell G,. Gg and Gz to saturation and ensures their operation. The gezacons Г,, Гг and the first cell, having triggered, closed their contacts and set the switch to the initial state. At the same time, Gezakon G; connects the start of the release winding W (, -, n own cell to zero potential, the gezakon Gg connects to the input "Bh switch the end and the beginning of the coils of the release WoTn and actuation respectively of its own cells, as well as the winding actuation Wcp of the second cell, the gezak Gz includes the external cell load I "(Fig. 2). This state of the switch is stable and lasts until the first control pulse from the GI arrives.

The first control pulse iy, from the GI, through the closed contact parts of the gezacon G, the first cell enters the release winding - WoTan, own cell, through diode D, the first cell to the WCP actuation winding, its own cell and the actuation winding., The second cell. At the same time, in the first cell, the WCP actuation winding, develops, in its contact details on which it is located, the gezakons G,, Gg and Gz confirming the initial magnetic flux. The release winding V (, i, wound oppositely, develops in its contact details (on which it is located) of the said gezacons a counter magnetic flux and rewinds its contact details, i.e., their ends in the working gap are magnetized at the same time, which causes repulsing them, i.e., reliable disconnection. The described process of opening the contact parts of the gezakon does not depend on the deviation of the control pulses from the nominal value and thus eliminates the "strict requirements on the magnitude of the release pulses, which increases the reliability The contact parts of the first-cell gesakones are disconnected, returning the cell to the initial state, the load RHI is turned off (Fig. 2). The arrival of the control pulse iyt in the winding of the second-cell Wcp activates the magnetization of the contact-parts of its hexacons and their operation. Gezakon P of the second cell connects to the zero potential the start of the Womz release cell winding of its own cell, Gezakon Fj connects to the input “Bx the end of the release coil Wo-mi via diode D in the forward direction, and the start of the actuation winding Wcpj ki actuation of the third cell. Gezakon Fj of the second cell includes its load N „g (Fig. 2).

The second control pulse FM iy enters through the gezakon 1 of the second cell into its actuation windings Wopj and release Scottle. 3 also in the winding of the third cell. The actuation winding, similarly to the described case, confirms the existing magnetization of its contact details (on which it is located) of the gezaques of the second cell. The WOTOZ release winding re-magnetizes its contact details of the second cell of the two hexazons P, F, and G, which causes them to be opened (turned off). The cell returns to its original state, and its load R is de-energized (Fig. 2). The arrival of the control pulse 1ug in the winding of the operation Wcpj of the third cell leads to the magnetization of the contact details of the H-law, F, F and F of the third cell and their triggering (closing). This includes the load of the third cell RHJ. Thus, each jth control pulse FH iyj turns off the jth cell and its load RHJ and turns on (J + 1) -th cell and its load RHJ + I, respectively, the nth pulse GI iyn turns off the nth cell and its load. The switch returns to the initial state. The work cycle ends here. To start a new cycle of operation, it is necessary to apply the following setting pulse 1nl2 to the winding of operation of the first cell (Fig. 2). Possible continuous ring mode switch with a single installation pulse. To do this, you need the end of the winding release Wom "n of the last cell through the additional diode D in the forward direction

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the thread with the beginning of the winding actuation of the first cell Wc ,,. After the installation pulse of the start of the 1np transformations is supplied and the first cell is turned on, the switch produces a sequential multiple switching on and off of its cells and their loads under the influence of the control pulses FH. In this case, after testing the i-th impulse iyn and turning off the p-th cell, it does not stop the work, but turns off the first cell and automatically switches to a new regular cycle of work (Fig. 3).

Claims (2)

1. A multi-position switch containing several bit cells by the number of switch positions, each of which is made in the form of a ferrid comprising a response winding, a release winding, and at least three magnetically controlled contacts, two of which are intended for switching internal control circuits, and the third for switching external load, characterized in that, in order to reduce dimensions and weight and increase reliability, ferrites with internal memory are used as disconnected cells each with at least three closing g-laws; the first contact-detail of the first gezakon of each cell is connected to the output for connecting a zero potential; the second contact-detail of this gezacon is connected with the beginning of the release winding of its own cell, the first contact-parts of the second gezakon, all cells interconnected and with the output for connecting the positive output of the power source, the second contact part of the second gezacon of each cell is connected to the end of the release coil of its own cell and through an additional The directly inserted diode in the forward direction — with the start of the actuation winding of its own cell, the second contact part of the second one of each cell, except the last one, is connected to the beginning of the actuation winding of the next cell, and the beginning of the actuation winding of the first cell is connected to the output for connecting the positive output source release signal. 2. The switch according to claim 1, characterized in that, in order to provide a cyclic mode of operation, the second contact part of the second gezacon of the last cell is further connected via a second additionally inserted diode in the forward direction with the start of the first cell operation winding.