SU1495890A1 - Connector of coaxial cables - Google Patents

Abstract

This invention relates to electrical engineering and may be used when installing coaxial cables. The purpose of the invention is to increase reliability by allowing the direct connection of shielding braids. The assembly includes a split housing, parts 1 and 2 of which are interconnected by threads. A metal sleeve 8 for connecting the center conductors, as well as an insulating sleeve 8 and pressure sleeves 13 and 14, the latter of which are made with lengthwise through transverse slots, are placed in the body cavity. The end portions of the shield braids 19 of both cables are placed between the end surfaces of the sleeves 13 and 14, sandwiched between the protrusion of the housing part 1 and the end of the part 2, which ensures their direct contact with a constant value of transient resistance with wide variations in ambient temperature. 1 hp f-ly, 6 ill.

Description

17

527 O 13

18 21

14 12 J 6 3 16

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00 g

18

3149

The invention relates to electrical engineering and can be used when installing coaxial communication cables.

The purpose of the invention is to increase reliability by providing the possibility of direct connection of folding braids.

FIG. 1 shows a node, a general view; in fig. 2 - connection of external and internal conductors, in FIG. 3- section A-A. In FIG. 2, in FIG. 4 - section BB in FIG. 2., in FIG. 5 - slotted sleeve; in fig. 6 - separation of coaxial cable.

The coaxial cable connection unit comprises a split case, consisting of two parts 1 and 2, .. part 1 of the case is made with an annular protrusion on the inner surface outside the threaded area. Part 2 is installed inside part 1 with the possibility of longitudinal movement and is connected to it by a threaded connection. Clamping pins & amphibians 3 and 4 are connected to parts of the housing on the thread. The assembly also contains sealing gaskets 5 and 6, an insulating gasket 7, a metal sleeve 8 for soldering central coaxial cables into it, an insulating sleeve 9 consisting of two halves 10 and 11 (FIG. 2), an insulating sleeve 12 installed in the housing cavity, a thrust (first) metal sleeve 13 and a pressure (second) metal sleeve 16 with through transverse slots 15 evenly distributed along the length, overlapping each other. The sleeves 13 and 14 are cylindrical and clamped between the protrusion of part 1 and the end of part 2. The housing part 1 together with the tip 3 of the gasket 6 and the insulating sleeve 12 is placed on the free branch of one coaxial cable 16 and the part 2 of the housing, tip 4 and packing The lanyard “and laying 5 - on the free branch of the other coaxial cable 17, followed by cutting the ends of the cables 16 and 17.

The cable 16 is divided as follows.

The upper insulating sheath 18 of the cable 16 is removed with the braid 19 a length longer than the length of the split metal grommet 14.

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Tighten the braid of the cable 16 onto the split metal pushbutton, freeing the insulating layer of the dielectric to approximately the length of the central insulating sleeve 9, brush it off and cut off the end of the released center conductor 20 so that its end protrudes half the length of the metal sleeve 8.

The cable 17 is divided as follows.

The upper insulation sheath 18 of the cable 17 is removed from the braid 19 to twice the length of the stop sleeve 13. Pre-installing the gasket 7, install the stop sleeve 13, pull the braid 19 of the cable 17 onto the stop sleeve 13, release the insulation; The dielectric layer is approximately the length of the stop sleeve 13, cleaned so that the center conductor 20 protrudes half the length of the metal sleeve 8. Place part 2 of the housing flush with the end surface 21 of the cut off upper shell 18 of the cable 17, wrap the clamp tip 4, insert the protruding the ends of the center conductors 20 in the metal sleeve 8 and sealed. An insulating sleeve 9 9 consisting of two halves 10 and 11 is installed with an emphasis on the end sections of the insulation of cables 16 and 17, the braid 19 of the cable 16 is pushed over it to contact with the braid of the cable 17 by means of a push-fit metal sleeve 14 with slots 15. After that, the housing part 1 is wrapped around the tip 3 with the necessary effort to compress the braids between the stop sleeve 13 and the pressure split sleeve 14. Complete the operation of connecting the coaxial cables by sealing the resulting connection with the tip 3. For the coax nyh cables with a small outer diameter allows to obtain small values yuschim transition resistance shielding braids with small force x contractions, annular insulating gasket may be combined with the housing, both parts of which are made of electrically insulating material.

In comparison with the known assembly, the shielding conductors are contacted by directly clamping the braids between the thrust

and pressure bushings with a force that leads to braiding of the braid wires, which ensures reliable passage of the useful signal at the splicing point of two segments of the coaxial cable due to reliable contact of the shielding conductors with a large value of the transient resistance with wide ranges of ambient temperature changes.

Claims (2)

1. An assembly for connecting coaxial cables containing a detachable body, the first of whose parts is threaded on the end sections, and the second is installed with the possibility of longitudinal movement relative to the first one and is connected to it by a threaded connection, an insulating sleeve installed in the housing cavity with an emphasis on end cuts insulation of cables, in which a metal sleeve is placed, connecting the central conductors of cables, the shielding of which the braid is fixed by means of metal bushings, and means of fixing the axial displacement including clamping lugs connected to the thread with parts of the body, characterized in that, in order to increase reliability by allowing the direct connection of the shielding braids, the first part of the body is made with an annular collar on the inner surface on one side outside the threaded section, the second part is installed on a part of the length inside the first, metal sleeves are placed in the first part of the body and are cylindrical, with one of them has uniformly distributed along the length of the transverse slits, overlapping one another in length, and installed with overlapping along the length of the insulating bushings, and the ends of the shielding braids of both cables are placed between the end surfaces of both sleeves, sandwiched between the protrusion of the first part of the body and the end of the second, 2. Pop 1 assembly, characterized in that the housing is made of metal, while between the housing and the metal bushings of the shielding braid fastening are additionally introduced second insulating sleeve and annular gaskets. 17 16 19 7 th Fi.ZFig. If J5 75/4 Fie.b 7 20 B b FIG. 6