SU1399835A1 - Switch - Google Patents

Abstract

The invention relates to devices for switching electrical circuits of various branches of engineering and can operate in a mode with memory and without memory. The purpose of the invention is to expand the functionality. The electromagnetic relay contains measles 5 and rmo 1 with a semi-permanent magnet 2 mounted on it and two parallel cores. On the magnet 2, magnetizing 3 and demagnetizing 4 windings are placed, and control winding sections are installed on the controllers. 3 il.

Description

ten

0US.2

The invention relates to switching devices of electrical circuits and can be used as a universal electromagnetic relay without memory and with memory in control systems, regulation, measurement, control, computing devices of various branches of engineering.

The aim of the invention is to expand the operational capabilities of an electromagnetic relay by providing operation in memory and without memory modes.

Figure 1-3 shows a constructive diagram of an electromagnetic relay.

The electromagnetic relay contains a magnetic core 1, in which a semi-permanent magnet (memory element) 2, made of retentive material, is installed longitudinally along its magnetization axis. On the semi-permanent magnet there are two control windings — including 3 and 8 — in the magnetic circuit. Measuring pin 5 is installed by means of a hinge with a shank 6 and a pusher 7, by means of which the contact spring 8 moves and contacts 9 and 10 are closed. Third control winding Jew section 11 is installed on the core 12, and section 13 - on the core 14. Cores 12 and 14 are installed in magnetic core 1 parallel to each other from different sides relative to the longitudinal axis of symmetry of the magnetic core.

Between cores 12 and 14 and core 5, there are working clearances 15 and 16.

Electromagnetic relay operates as follows.

In the demagnetized state of the floor of the permanent magnet 2 and the control winding off 11-13, the bore 5 under the action of the contact (return) spring 8 is in the initial released state and the working gaps 15 and 16 have a maximum length.

The relay has two modes of operation - without memory and with memory, and also has the ability to switch from one mode to another during the operation. The memory mode is carried out by pulse control signals, and the mode without memory - by means of pulse signals. In the non-memory mode, the relay is controlled by winding

management 11-13. When a current is applied (potential signal), a control magnetic flux (Fig. 1) is created in the control winding 11-13, flowing across the magnetic core 1, core 5, successively through both working gaps 15 and 16, cores 12 and 14, causing operation relay and contact closure 9 and 10. In this case, the control flow does not flow through the semi-permanent magnet 2, and it remains demagnetized. When the control winding 11-13 is de-energized, flow F clears and the bark 5 returns to its initial state (the relay releases) under the action of the contact spring 8, and contacts 9 and 10 open.

In memory mode, the relay is controlled by turning on 3 and turning off 4 windings. When a pulsed current is applied to the turn-on winding 3, the semi-permanent magnet 2 is magnetized. Magnetic

5, the flow ff, (FIG. 2), created by the magnet 2, flows through the bark 5 and splits into two components of the flow f and (FIG. 1) flowing through 1

Cuts the working clearances 15 and 16, respectively, under the action of which the relay operates and remains in the actuated state (memory mode). The return of the relay to the initial on-state (memory clearing) is carried out by applying a switching current pulse to the switching-off winding 4 (Fig. 2). In this case, the semi-permanent magnet 2 is demagnetized and the relay returns to its original state.

e The transition from the memory mode to the non-memory mode is carried out when the relay is in the memory state (activated state) by applying the control potency signal to the control winding 11-13. The switching off pulse, then applied to the switching winding 4, demagnetizes the magnet 2, but does not cause the relay to release, so

 how it is kept in the actuated state until the end of the control potential signal flow. During the simultaneous action of two streams n and f in the working gap 15 will be - f g. Oh, but the relay does not release due to the presence in the working gap 15 sums

The transition from non-memory mode to memory mode is implemented5

It is also when the relay is in the actuated state, but under the action of a control potential signal (non-memory mode) by applying a trigger pulse to the winding 3 of the switch-on. In this case, the magnet 2 is magnetized and the relay, after turning on the potential control signal, remains in the memory state (actuated state)

under the action of flow

Claims (1)

Invention Formula Electromagnetic relay containing magnetic core, contact group, two cores, measles, magnet and two control windings, each of which covers the corresponding serf fae.1 Editor T. Lazorenko Compiled by S. Khromov Tehred L. Oliynyk Order 2673/53 Circulation 7D6 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 A winding device, wherein said windings are connected in series with each other and according to, characterized in that, in order to expand operational capabilities, it is provided with two additional control windings placed on the magnet, wherein said magnet is filled of retentive material, one of the additional control windings is designed to magnetise the magnet and the other to demagnetize, and the cores are placed on one side relative to the specified magnet at the same distance from it symmetrically relative to the longitudinal axis of symmetry of the magnetic circuit. Q o b b phage.Z Proofreader L. Pilipenko Subscription