RU2715377C1 - Detachable connector - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used for fast and reliable connection of high-voltage cable high-voltage lines with electrophysical installations, and more specifically – with electromagnets. In a detachable connector, comprising two parts, in one of which there is a cable, as well as a connecting rod between the conductive elements of two parts, one of the parts is built into the body of the electromagnet, and the second part is detachable, built-in part contains metal bushing with cone and thread on end protruding over body surface of electromagnet, on conical part of bushing cone of central hole is fixed metal plate with two tapered holes on one of its sides, inside the bushing there is an insulator with an axial hole and a flange on the inner end, in the insulator hole there is a metal rod with a cone and thread on the end projecting above the body surface of the electromagnet, detachable part comprises housing from insulating material, which consists of three sections, two of which are parallel, and third at right angle connects them and extends beyond one of them, forming a projection, in all sections there are axial holes, in parallel sections – through, and in transverse, on the side of protrusion, – before connection of holes of parallel sections, in axial hole of transverse section is placed connecting rod, on flat ends of which there are tapered holes, which axes coincide with axes of parallel sections of detachable part housing; cable is arranged in the axial hole of one of the parallel sections on the side of the protrusion and has on the central core a tip with a conical and threaded part on the end, conical part is placed in cone hole of connecting rod, and cable sheath contains ring with two flexible conductors connected to it with L-shaped tips with conical sections, which are fixed in conical holes of plate; second parallel section of detachable part housing is inserted into annular cavity between metal bushing and insulator of built-in part, at that, cone of metal rod is placed in cone hole of connecting rod.

EFFECT: enabling the connector to transmit high currents at dimensions identical with the prototype.

1 cl, 7 dwg

Description

The invention relates to the field of electrical engineering and can be used for quick and reliable connection of cable high-current high-voltage lines with electrophysical installations, and more specifically with electromagnets.

The electromagnet for which the connector is designed contains several multi-winding windings that require independent connection, convenient supply and quick installation of high-voltage cables, reliable contacts at the joints with minimal dimensions.

Closest to the claimed device is a connector 300РВ-630А of the Euromond company of the Nexans company (advertising catalog "Plug connectors and bushing insulators", 2005, p. 51, www.cable-systems.su), used to connect two similar cables. The connector has a detachable metal housing coated on its inner surface with insulating material. A cable with a tip having a cylindrical hole at the end is placed in each of the parallel parts of the connector housing. Through the holes of the tips passes a connecting rod with a threaded end on one side and a threaded hole on the other. The central axis of the rod coincides with the axes of the holes of the cable lugs. Free openings of the body are muffled by conical caps.

A disadvantage of the known connector is the inability to use it to connect the winding of the electromagnet coils with a cable.

размеры соединителя.In addition, for passing through the elements of this connector comparable to the claimed device currents are required

connector dimensions.

The problem to which the invention is directed, is to create a compact and reliable connector for an electromagnet, which contains several double-layer windings.

токи при одинаковых с прототипом габаритах.The technical result of the present invention is the ability of the connector to pass

currents with the same dimensions as the prototype.

The technical result of the invention is ensured by the fact that in a detachable connector comprising two parts, in one of which a cable is placed, as well as a connecting rod between the conductive elements of the two parts, it is new that one of the parts is built into the electromagnet housing, and the second part is removable moreover, the built-in part contains a metal sleeve with a cone and thread on the end protruding above the surface of the body of the electromagnet, on the conical part of the sleeve by a cone of the Central hole is fixed a metal plate with two conical holes on one of its sides, an insulator with an axial hole and a flange at the inner end is installed inside the sleeve, a metal rod with a cone and thread is placed in the hole of the insulator at the end protruding above the surface of the electromagnet body, the removable part contains a body of insulating material, which consists of three sections, two of which are parallel, and the third connects them at right angles and continues beyond one of them, forming a protrusion, axial holes are made in all sections, and in parallel x - through, and in the transverse, from the side of the protrusion, until the holes of the parallel sections are connected, a connecting rod is placed in the axial hole of the transverse section, on the flat ends of which conical holes are made, the axes of which coincide with the axes of the parallel sections of the housing of the removable part; the cable is placed in the axial hole of one of the parallel sections on the protrusion side and contains a tip on the central core with a conical and threaded part at the end, the conical part being placed in the conical hole of the connecting rod, and the cable braid contains a ring with two flexible conductors connected to it with G -shaped tips with conical sections, which are fixed in the conical holes of the plate; the second parallel portion of the housing of the removable part is inserted into the annular cavity between the metal sleeve and the insulator of the integrated part, while the cone of the metal rod is placed in the conical hole of the connecting rod.

In addition, plugs with a rectangular thread are inserted into the ends of the parallel sections of the housing and the protrusion.

The connector consists of two parts: the first part is mounted in the electromagnet body with the exit of the connection point to the end face of its body. The second (removable) part is connected to the cable line (cable).

The operations for connecting the cable lines supplying electricity are quite simple and are carried out as follows. The part of the connector built into the electromagnet body is completely assembled (a metal sleeve and a metal rod with a cone at the end are installed). To the inner, thickened ends of the rod and the sleeve, the high-voltage and grounded ends of the wire of the two-layer winding of the electromagnet are soldered respectively and are separated by an insulator. The detachable part of the connector with the cable attached to the connecting rod is fully assembled separately. The connection of the two parts of the connector is carried out by installing a section of the housing of the removable part without cable in the corresponding cavity between the insulator and the sleeve in the part integrated in the electromagnet, while the cone of the metal rod is placed in the conical hole of the connecting rod. Two flexible conductors connected to the braid of the cable with L-shaped lugs are fixed in the holes of the plate mounted on the sleeve.

токи.In the inventive connector, the contact points are made conical. The gain in the force of pressing the contact surfaces of the conical design, with equal areas and compared with the case when the force is directed normally to them, is several times greater (unit divided by the sine of the angle between the generatrix and the axis of the cone). At an angle of 30 °, the increase in the pressing force will be 3.3 times. In this regard, with smaller dimensions of the connector, the joints of its elements can pass

currents.

In addition, the implementation of the connector housing of insulating material ensures the safety of the connection.

The invention is illustrated by drawings.

In Fig 1 shows a General view of the inventive device.

In FIG. 2 shows a view A of the claimed device.

In FIG. 3 shows a section bB of two parts of the inventive device connected together.

In FIG. 4 shows a section BB of the device mounted in an electromagnet. For this part, the figure shows:

1 - the beginning of the turns of a two-layer coil of an electromagnet;

2 - the end of the turns of a two-layer coil of an electromagnet;

3 - insulator between the layers of the coil;

4 - insulator;

5 - metal rod;

6 - an insulating disk of an electromagnet;

7 - a metal sleeve with a cone and a threaded part;

8 - a metal plate with a central hole with a cone and with two conical holes on one of its sides;

9 - a nut;

10 - screw;

G and D are annular cavities.

In FIG. 5 shows a section BB of the removable part of the inventive device. This part shows:

11 - housing removable parts of insulating material;

12 - connecting rod;

13 - cable end;

14 - cable core;

15 - internal cable insulation;

16 - a metal ring;

17 - metal sheath of the cable;

18 - outer cable insulation;

19 - flexible wire with insulation on the surface;

20 - L-shaped tip with a tapered contact surface;

21 - a nut;

22 - threaded plug of insulating material;

23 - screw;

24 - washer.

In FIG. 6 and FIG. 7 shows the cavity D and the place of soldering cable.

The design of the connector part integrated into the electromagnet housing is shown in FIG. 4. A metal sleeve 7 is placed at the edge of the magnet disk 6, and a plate 8 is attached to the conical part of the magnet which protrudes above the surface of the magnet. Plate 8 is fixed to the surface of the electromagnet with screws 10 (see Fig. 1). An insulator 4 is placed inside the coaxial with the sleeve 7. In the central hole of the insulator there is a metal rod 5, the upper part of which with a cone and thread protrudes above the surface of the plate 8. An annular cavity G is formed between the insulator 4 and the sleeve 7, expanding towards the plate 8. High-voltage 1 and “grounded” 2 ends of the wire of the two-layer winding, the layers of which are separated by the insulator 3 and the flange of the insulator 4, are soldered to the inner thickened ends of the rod 5 and the sleeve 7, respectively. Electrical contact built into the magnesium t parts of the connector with the removable part of the connector is carried out through the rod 5 and the plate 8.

The design of the removable portion of the connector is shown in FIG. 5, FIG. 6 and FIG. 7.

The housing 11 of the insulating rigid material is made monolithic and consists of three parts. Two parts are parallel, the third connects them at right angles and continues beyond one of them, forming a protrusion. The same holes are made in all parts along their axes, through holes in the parallel ones, in the transverse - from the side of the protrusion until the holes of the parallel parts are connected. In the holes, in the transverse part, on the protrusion side, in parallel parts, on the sides adjacent to the transverse part, a thread is cut for installing plugs 22 of insulating material. A connecting rod 12 with conical holes at the ends, the axes of which coincide with the axes of the holes of the parallel parts of the housing, is placed in the hole of the transverse part of the body. At the ends of parallel parts of the housing 11, opposite to those where the threads are made conical grooves D1 and G1, identical in configurations to the cavities G and D.

The cable of the removable part contains a tip 13 with a cone and thread at the end, soldered to the core. A ring 16 is soldered to the cable sheath, two flexible wires in insulation 19 with L-shaped lugs 20 are connected to it. An annular cavity D. is formed between the ring 16 and the cable insulation 15.

The assembled cable (Fig. 6 and Fig. 7) is inserted into the hole of the parallel section on the protrusion side, the conical surfaces of the ferrule 13 and the connecting rod 12 are aligned and fixed by a nut 21. The threaded holes of the housing close to the ferrule are closed by plugs 22.

In FIG. 1, FIG. 2 and FIG. Figure 3 shows the appearance and design of the assembled parts of the connector. When the removable part of the connector is installed on the electromagnet, the housing section of the housing section with the groove G1 is placed in the cavity G of the integrated part. In this case, the cone of the rod 5 is combined with the cone of the connecting rod 12 and fixed with a nut 21. The tips 20 are inserted into the conical holes of the plate 8 and are fixed with screws 23, 24. The threaded hole is closed by the plug 22.

The connector of the proposed design was tested on an electromagnet when currents of tens of kA passed through it at high voltage and showed reliability and ease of use. In a specific embodiment, the insulators were made of polyethylene and polyamide. For rods and lugs, brass was used.

Claims (2)

1. A detachable connector comprising two parts, in one of which a cable is placed, as well as a connecting rod between the conductive elements of the two parts, characterized in that one of the parts is built into the electromagnet housing, and the second part is removable, the built-in part comprising a metal sleeve with a cone and thread on the end protruding above the surface of the body of the electromagnet, on the conical part of the sleeve by the cone of the central hole, a metal plate is fixed with two conical holes on one of its sides, inside The insulator is installed with an axial hole and a flange at the inner end, a metal rod with a cone and a thread is installed in the hole of the insulator at the end protruding above the surface of the electromagnet housing, the removable part contains a body of insulating material, which consists of three sections, two of which are parallel, and the third connects them at right angles and continues beyond one of them, forming a protrusion, axial holes are made in all sections, and in parallel - through, and in the transverse, from the side of the protrusion - until connected ia holes of parallel sections, a connecting rod is placed in the axial hole of the transverse section, on the flat ends of which conical holes are made, the axes of which coincide with the axes of parallel sections of the housing of the removable part; the cable is placed in the axial hole of one of the parallel sections on the protrusion side and contains a tip on the central core with a conical and threaded part at the end, the conical part being placed in the conical hole of the connecting rod, and the cable braid contains a ring with two flexible conductors connected to it with G -shaped tips with conical sections, which are fixed in the conical holes of the plate; the second parallel portion of the housing of the removable part is inserted into the annular cavity between the metal sleeve and the insulator of the integrated part, while the cone of the metal rod is placed in the conical hole of the connecting rod. 2. A detachable connector according to claim 1, characterized in that plugs with a rectangular thread are inserted into the ends of parallel sections of the housing and the protrusion.

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