SU1257722A1 - Polarized electromagnetic system - Google Patents

Abstract

The invention relates to electrical engineering. It can be used in various types of polarized relays and as a power electromagnet. The purpose of the invention is to provide reliable operation in a mode with one-sided predominance while maintaining sensitivity and reducing material intensity by reducing the mass of the permanent magnet. Permanent magnets 6.7 are installed between the pole magnetic cores I, 2, 3, 4. Measuring 8 is installed in the air gaps between the bent ends of the L-shaped magnetic cores 1,2,3,4. Plates 9, 10 of non-magnetic material can be installed on the pole magnetic circuit or on the bark. For the bounce i. 2 6 1 (LG 9y

Description

The core is used by an elastic plate P with curved ends 12. In the initial state, the bark 8 is attracted to the magnetic conductors 2, 3. When winding 1-4 is turned on, the magnetic flux ij is folded with polarizing magnetic flux Rd. and measles 8 is attracted to

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The invention relates to electrical engineering and can be used in various types of polarized relays and as a power electromagnet, for example for electrovalves.

The aim of the invention is to ensure reliability of operation in a mode with one-sided predominance while maintaining sensitivity and reducing material consumption by reducing the mass of a permanent magnet.

The drawing shows a diagram of a polarized electromagnetic system, a general view.

The polarized electromagnetic system has four L-shaped pole magnetic circuits 1-4 located in pairs at the ends of the core 5. Permanent magnets 6 and 7 are installed between the pole magnetic circuits. In the air gaps formed between the bent ends of the polar magnetic cores, there is a measur 8. On Plates made of nonmagnetic materials 9 and 10 are mounted in the pole magnetic circuits.

Non-magnetic plates that act as pin studs can be installed on the core instead of magnetic cores. In order to reduce the chatter of the core when the electromagnetic system is triggered, the pins are detached from the nonmagnetic elastic

plate 1 attached middle

f

In part to the bark, the curved ends of which have a triangular protrusion 12. A control winding 14 is placed on the frame 13.

In the initial state (the winding is de-energized) the bark of the electromagnetic system is pulled to the planes of the pole magnetic cores 2 and 3 by the force created by the total polarizing

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1257722

pole magnetic cores 1 and A. Part of the magnetic flux control (subtracted from the polarizing magnetic flux, which will increase the sensitivity of the electromagnetic system. 3 3. p. f - ly. 1 Il.

ten

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magnetic flux of permanent magnets f, total polarizing magnetic flux 9p |. is created by the sum of the magnetic fluxes of permanent magnets 6 and 7, installed in the circuit of the magnetic circuit so that their magnetization poles form a series circuit. The magnetic flux from permanent magnets 6 and 7 in the working gaps of the left pair of pole magnetic cores 1 and 2 runs clockwise. And in the working gaps of the right pair of polar magnetic cores 3 and 4 counterclockwise. When the polarity of the permanent magnets is changed to the opposite direction of the magnetic flux in the working gaps, it will also change to the opposite. When the winding 14 is turned on, the magnetic flux .f in large working gaps formed between the pole magnetic cores 1 and 4 and the core 8, collapses with the polarizing magnetic flux pg core 8 and is attracted to the pole magnetic circuits 1 and 4.

When the core 5 approaches the pole magnetic cores, the projections 12 at the ends of the plate 11 abut in the plane of the pole magnetic circuits I and 4 and. the ends of the plate 11 begin to slip along the plane of the core 5 with some friction force, which reduces the kinetic energy and bounce of the core. The elastic plate 11 can be installed on both planes of the core 5.

Part of the magnetic flux control 9, passes in the form of a magnetic flux P (.2 (not shown) through the pole magnetic circuit 4, permanent magnet. 7, pole magnetic circuit 3, measles 8, pole magnetic core 2,

a permanent magnet 6, a pole magnet wire and closes on the core 5, while the direction of its passage is such that in the working gaps formed between the pole magnetic cores 2 and 3 and core 8, the magnetic flux 9m is subtracted from the polarizing magnetic flux, which contributes increase the sensitivity of the electromagnetic system. When the control winding is disconnected, the bark 5 due to the force generated by the magnetic flux of the permanent magnet F is attracted to the pole magnetic circuits 2 and 3.

Claims (4)

1. A polarized electromagnetic system containing a bark, two permanent magnets and four L-shaped magnetic cores with pole pieces, which, with a crust, form four working gaps, the indicated L-various “magnetic cores with pole ends” are installed in pairs, each the pair consists of internal and external magnetic circuits, permanent magnets are installed between the internal and external magnetic conductors of each pair, characterized in that, in order to ensure reliability of operation in the mode with one-sided dominance While maintaining sensitivity and reducing metal consumption by reducing the mass of the permanent magnet, the permanent magnets Editor Y. Sereda Compiled by N. Kuzina Tehred I.Popovi Corrector M.Sharoshi Order 5031/51-Circulation 643 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, F - 35, Raushsk nab. 4/5 -Production and printing company, Uzhgorod, Projecto st., 4 ten t5 2577224 installed so that the like poles of the permanent magnets are adjacent to the inner and outer planes of the l-shaped magnetic circuits. five 2. Electromagnetic system according to claim 1, characterized in that, in order to increase the sensitivity, it is equipped with plate elements of non-magnetic material, which are located in the working gaps between the ends of the core and the pole pieces of the L-shaped external magnetic circuits. 3, Electromagnetic system according to claim 1, which is different from the fact that, in order to increase the return coefficient, it is equipped with other lamellar elements of non-magnetic material located in the working gaps between the ends of the core and the pole pieces of the L-shaped internal magnetic circuits. 4. Electromagnetic system according to p. 3, c. JJ and the fact that, in order to reduce the chatter of the core when it is triggered and released, the said lamellar elements of a non-magnetic material are located in the working gaps between the ends: the core and the pole ends of the T-shaped inner magnetic cores are made in the form of the ends of an elastic plate of non-magnetic material, the middle part of which is bent and attached to the core, and its indicated ends are bent and pressed against the core. 20 25 thirty 35