RU2713196C1 - High-frequency shield reactor - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to systems for transmitting information over power supply lines, specifically to reactors of high-frequency shields. Disclosed is a high-frequency shield reactor comprising an inductance coil made of a metal wire wound on a rack frame, the racks of which in extreme points are interconnected by upper and lower crosspieces, note here that carcass rings made of dielectric are mounted on upper and lower parts of reactor inner side and in middle part of outer side of reactor.

EFFECT: technical result consists in improvement of strength of reactor.

1 cl, 1 dwg

Description

The invention relates to high-frequency communications, in particular to systems for transmitting information along power lines, and in particular to reactors of high-frequency chokes.

A high-frequency choke reactor is known from the prior art (Utility Model Patent No.RU 188345 dated December 29, 2018) containing an inductor made of a wire with a low specific resistance, the turns of which are located on a support in the form of a hollow fiberglass cylinder, characterized in that the adjacent the turns of wire on the support are fixed by a layer of electrical insulation, filling the inter-turn space and cured after its installation, while the insulation layer is wound conditionally parallel Am wire roving from at least two glass filaments, each of which separately impregnated thermosetting polymeric binder.

The disadvantage of the described analogue is the difficulty in creating a layer of electrical insulation, since this requires a large number of operations.

The closest technical solution, selected as a prototype, is a high-frequency choke reactor (utility model patent No.RU 81862 dated 10/15/2008) containing an inductor made of aluminum or copper wire, the turns of which are mounted on a support made in the form of a hollow cylinder made of fiberglass, on the outer surface of which a threaded groove with a constant pitch is formed in the body of the insulating material, in which there is an aluminum or copper wire forming an inductance coil tee.

The disadvantage of the prototype is the lack of structural strength of the reactor, caused by the unreliability of fixing the turns of wire on the support, as a result of which the turns of the wire under the action of forces of attraction to each other can pop out of the threaded groove up to the connection of adjacent turns of wire, which leads to their closure.

The technical result of the claimed invention is to increase the strength of the reactor, in particular the hardening of the reactor nodes, subject to deformation due to the desire to unwind the wire.

To achieve the technical result, a high-frequency choke reactor is proposed, comprising an inductor made of a metal wire wound on a rack frame, the rods of which at the extreme points are connected by upper and lower crosses, characterized in that on the upper and lower parts of the inner side of the reactor and In the middle part of the outer side of the reactor, frame rings made of a dielectric are installed.

The coil winding is preferably made of aluminum or copper wire.

The invention is illustrated by drawings.

The figure 1 shows the reactor high-frequency trap, where:

1 - inductor;

2 - rack frame;

3 - crosspiece;

4 - outer frame rings;

5 - inner frame rings.

The high-frequency choke reactor is an inductor 1 made of aluminum or copper wire wound on a rack 2, whose rails at the extreme points are connected by upper and lower crosspieces 3. On the upper and lower parts of the inner side of the reactor and in the middle part of the outer side the reactor has frame rings 4, 5 made of a dielectric.

The high-frequency choke reactor is used as follows: when short-circuit currents flow through the reactor, forces appear in the winding that tend to unwind the wire. This force is transmitted to the overhead rail and to the rails of the layers located further from the axis of the reactor. Due to the high density of magnetic field lines in the center of the reactor and the low density of magnetic field lines at the ends, the reactor tends to take the form of a truncated elongated ellipsoid.

To compensate for the created forces, frame rings made of a dielectric are installed on the upper and lower parts of the inner side of the reactor and in the middle part of the outer side of the reactor. Segmented or monolithic ringing of the reactor makes it possible to increase the rigidity of the reactor in vulnerable places by creating the conditions for rigidly fixed beams for rails.

The claimed combination of features will ensure the achievement of the claimed technical result as follows: hardening of the reactor nodes, subject to deformation due to the tendency to unwind the wire is ensured by the use of frame rings made of a dielectric in the design of the reactor, frame rings prevent the geometric shape of the reactor from changing when exposed to it dynamic forces created by short-circuit currents in the windings and nodes of the reactor, and other mechanical forces, which ensures It has the required reactor strength and prevents the destruction of the reactor.

Technical solutions that coincide with the totality of the features of the claimed invention have not been identified, which allows us to conclude that the claimed invention meets the condition of patentability “novelty”.

Claims (1)

A high-frequency choke reactor containing an inductor made of a metal wire wound on a rack frame, whose rails at the extreme points are connected by upper and lower crosses, characterized in that in the upper and lower parts of the inner side of the reactor and in the middle part of the outer side of the reactor frame rings made of dielectric are installed.

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