SU1760576A1 - Polarized electromagnet - Google Patents

Abstract

Use, in electrical engineering, in particular, in electrical apparatus as an actuator for relays, switches, actuators. SUMMARY OF THE INVENTION: Providing the possibility of adjusting the time delay between korea switchings by changing the control signal value. Includes housing 1 with two core magnetic cores 2 installed in it, 2 parallel to each other, with control windings 3 G, two cores 4, 4 permanent magnets 5, installed at the ends of the magnetic cores 5, 5. mechanisms Star 6 and 6, connected to the winding casing, connected in series. The return mechanisms can be made in the form of springs or additional magnets or electromagnets connected to the casing 4 hp f 4, 4 sludge.

Description

The invention relates to electrical engineering, in particular, to electrical apparatus and can be used as an actuator in the design, for example, of relays, switches, contactors, starters.

The known magnetic system 1, which consists of two electromagnets with a common magnetic core, while the core is kinematically interconnected so that after the attraction of one core to the pole of the electromagnet, the other measles, held in the indented state by a mechanical latch, is released and, after falling, locks through the latch at the pole of the first measles. In addition to holding the mechanical latch, the korea is moved to extreme positions with a time delay.

The closest to the claimed solution by the greatest number of similar features and by fuctioning is

device 2 in which two cores and core magnetic cores are located, which are arranged in parallel, on each of which one winding is placed close to one of the cores, a permanent magnet and a return spring This device does not have the possibility of providing a time delay between switching cores due to the absence of a return mechanism that and the second winding in the second box.

The aim of the invention is to make it possible to adjust the time delay between korea switchings by changing the magnitude of the control signal.

The goal is achieved due to the fact that the known polarized electromagnet, comprising a case and two core magnetic circuits installed in it, are arranged parallel to each other with two windings placed on them, two

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core, installed with the possibility of interaction with the ends of the rod magnet wires, a permanent magnet, the return mechanism of one of the Koreas, connected to the housing, while one of the windings is located near one of the Koreas, provided with an additional permanent magnet, the return mechanism of the second core, connected with the case, and each of the windings is made of two parts connected in series, with the second winding located near the second core.

The attached drawings show the proposed polarized electromagnet;

Fig. 1 shows a variant with the main and additional permanent magnets installed between the cores of the magnetic cores near their ends, the magnetization axes of which are directed in one direction, and the return mechanism of each core is made in the form of a spring; FIG. 2 shows a variant with one of two cores made of two parts, the axis of magnetization of which is opposite to the direction of the axis of magnetization of the main permanent magnet, the return mechanisms of the cores are spring-like: FIG. 3 shows a variant with main and additional permanent magnets installed between the cores of the magnetic cores near their ends with the axes of magnetization directed in one direction, each of the korea return mechanisms is made in the form of a permanent magnet with pole pieces; Fig. 4 shows a variant with a crust made of two parts, between which the main and additional permanent magnets with opposite magnitudes of their magnetization axes and the korea return mechanism in the form of electromagnets with windings are installed.

The schematic diagram of a polarized electromagnet comprises a housing 1 (Fig. 1-4) and two core magnetic cores 2 and 2 installed therein parallel to each other, with two control cords 4 and 4 installed in control windings 3 and C, installed with the possibility of interaction with the ends of the core magnetic circuits 2 and 2 main 5 and additional 5 permanent magnets, return mechanisms 6 and 6. first 4 and second 4 koreas connected to corus 1. Each of windings 3 and 3 is made of two parts connected in series and placed on rod magnets Toprovodah 2 and 2 and is located near their korea 4 and 4,

Works proposed polarized electromagnet as follows.

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ten

15

20

35

25

thirty

40

45

50

55

When de-energized obmogki 3 and 3. (Fig.1-3) measles 4 is open and held by the return mechanism b, and measles 4 is closed and held by the flux Fp of permanent magnets 5 and 5 passing through this measles.

When power is applied to the winding 3, a working flow Fr. which is folded in the gap d and subtracted in the gap Y, with the flux Fp of permanent magnets 5 and 5 Anchor 4 begins to be attracted, and the measles 4 continues to be held in the pulled state until the force of the return mechanism 6 exceeds the holding force created by the resultant flow Permanent magnets 5 and 5 and excited winding 3 There is a sequential transfer and fixation of Koreas 4 and 4 in new stable positions. When the winding 3 is de-energized, the measles 4 are held in a state of flux by the permanent magnets 5 and 5 in Figures 1, 3 and by the flux of the permanent magnet 5 in Fig. 2, and the bore 4 is kept in the open state by the return mechanism 6.

When power is applied to the winding 3, the korea is switched in reverse order.

If the cores 4 and 4 (Fig. 4) in the initial state are attracted to the ends of the core magnetic cores 2 and 2 for the estimates of the total flow of Fp generated by the permanent magnets 5 and 5. then when the pigment is fed. eg. on the winding 3, the core 4 is initially transferred, since the working flow Fr generated by it, passing through this core more than the working flow Fr, passing through the measles 4, to the leakage flow Fu. As the core 4 moves away from the ends of the rod magnet lines 2 and 2, a sharp weakening of the bark holding force 4 begins due to the flux of permanent magnets 5 and 5 due to a sharp increase in the magnetic resistance in the path of its passage. when de-energizing the winding 3, they are held by the fluxes of their permanent magnets 5 and 5. When the power supply of the opposite polarity is applied to the winding 3 or 3, the Korea is switched in the same or the reverse sequence, respectively

The described principle of operation of a polarized electromagnet makes it possible to use it, for example, in combined electric devices with a semiconductor attachment for arc-free switching of circuits.

Claims (5)

1. A polarized electromagnet, comprising a case and two core magnetic cores installed in it, arranged parallel to each other, two windings placed on them, and two cores installed with the possibility of interaction with the ends of the indicated core magnetic conductors. a permanent magnet, the mechanism for returning the first of these Koreas, connected to the housing, while one of the windings is located near one of the Koreas, characterized in that, in order to make it possible to adjust the time delay between switchings of the Korea signal, it is equipped with an additional permanent magnet and the return mechanism of the second of these Koreas connected to the housing, each of these windings is made of two parts connected in series and placed data on the core magnetic cores. in this case, the second winding is located near the second bark. 2. Electromagnet according to claim 1. characterized in that the main and additional permanent magnets are installed between: / to the cased rods of the magnetic conductors near their ends and are magnetized so that the axes of their magnetization are directed in one direction from one core magnetic conductor to the other, these mechanisms for returning the cores are made in the form of springs. 3. Electromagnet according to section 1. characterized in that one of said koreas is made of two parts between which installed an additional permanent magnet. that the direction of its axis of magnetization is opposite to the direction of the axis of magnetization of the indicated main constant magnet, the aforementioned mechanisms for the return of koreas are made in the form of springs. 4. Electromagnet according to claim 2, characterized in that. that the indicated primary and additional permanent magnets are installed between the said rods of the magnetic conduits near their ends and are magnetized as follows. that the axes of their magnetization are directed in one direction from one of the core magnetic cores to the other, each of these mechanisms for returning korea is made in the form of a permanent magnet with pole tips, and the direction of its axis of magnetization coincides with the direction of the axes of magnetization of the main and additional permanent magnets. 5. Electromagnet according to claim 1, characterized in that. that the indicated cores are made of two parts, between which the indicated main and additional permanent magnets are installed so that the direction of their axes of magnetization is opposite. The korea return mechanisms are made of electromagnets with windings with the possibility of the interaction of the poles of each of the return electromagnets with parts of the Koreas adjacent to the electromagnet, with the windings of each of these electromagnets connected in series with the windings located near the core with which the return electromagnet interacts. Phi.1 Fr 2 Php v f SS 4V 2 pff FIG. g to f J g s 5 a I d  mj , / 4 four bs f / f 4r # I fr  mj -E V