EP0016340B1 - Connecting device between the outer conductors of two coaxial pairs - Google Patents

Connecting device between the outer conductors of two coaxial pairs Download PDF

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Publication number
EP0016340B1
EP0016340B1 EP80100793A EP80100793A EP0016340B1 EP 0016340 B1 EP0016340 B1 EP 0016340B1 EP 80100793 A EP80100793 A EP 80100793A EP 80100793 A EP80100793 A EP 80100793A EP 0016340 B1 EP0016340 B1 EP 0016340B1
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EP
European Patent Office
Prior art keywords
shells
coaxial
conductor
metal
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP80100793A
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German (de)
French (fr)
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EP0016340A1 (en
Inventor
Jean Duret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cables de Lyon SA
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Cables de Lyon SA
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Publication date
Application filed by Cables de Lyon SA filed Critical Cables de Lyon SA
Publication of EP0016340A1 publication Critical patent/EP0016340A1/en
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Publication of EP0016340B1 publication Critical patent/EP0016340B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0503—Connection between two cable ends

Definitions

  • the present invention relates to a connection device between the external conductors of two coaxial pairs, with axial conductor and external conductor, at least one of which is a coaxial cable, comprising two metal half-shells provided in the internal part of each of them of grooves in which are inserted insulating washers and comprising chamfered ends, provided with longitudinal slots and disposed between the ends of the outer conductors, a sleeve covering said half-shells, provided at one end with a tapping, and a screw clamping threaded on the corresponding outer conductor and screwing onto said end of the sleeve so as to clamp by means of a conical ring one end of the half-shells.
  • Such a device is known, for example from document FR-A 22 19 553.
  • the sleeve is provided with a thread at each of its ends, and a clamping screw is screwed into each of them.
  • a clamping screw is screwed into each of them.
  • the object of the present invention is to remedy these drawbacks and to provide a simpler, less expensive connection device which is quick and safer to assemble.
  • the device according to the invention is characterized in that the other end of said sleeve is machined internally according to a frustoconical profile of conicity corresponding to that of the corresponding end of the half-shells, and in that it comprises, in the part internal of the end of the metal half-shells, outside the housing groove of an insulating washer, and around the end of the conductor, a metal ring for clamping the external conductor against the half-shell.
  • the device of Figure 1 connects two coaxial cables 1 and 2, the second being shown in axial section. These include an axial conductor such as 3 and an external conductor such as 4, separated by an insulator 4A and connected from place to place by insulating spacer discs 5.
  • the device comprises an outer sleeve 6, made of light alloy (homogeneous with the aluminum of the coaxial cable conductors), provided at one of its ends (here its left end) with a thread 7, into which a hollow clamping screw 8 made of the same light alloy is screwed by means of a conical ring 9 the conical end 10 of the half-shells 11.
  • the light alloy half-shells 11 are provided in their center with an insulating washer for centering the conductors 12, made of polytetrafluoroethylene, housed in an internal groove 13.
  • the axial conductors are connected to each other by a solder, a weld, or a crimp 14, in a known manner.
  • the half-shells are provided with insulating end washers 15 and 16, also made of polytetrafluoroethylene, housed in internal grooves 17 and 18, against which the insulators of the cables.
  • the sleeve 6 has a frustoconical inner part 19, against which the frustoconical end 20 of the half-shells abuts under the effect of tightening by the screw 8.
  • the sleeve 6 is a relatively simple piece, having only one thread, and that the tightening of the device is ensured by a single screw 8, pressing on the half-shells by a single conical ring 9.
  • the fitting is simpler and less bulky than a known connector with two clamping screws.
  • the left part of the figure, on the side of the coaxial cable, is similar to the right part of FIG. 1.
  • the frustoconical end 20 of the half shells is pressed against the frustoconical internal part 19 of the sleeve.
  • the coaxial repeater cord comprises an axial conductor 3A and an external conductor 5A, separated by an insulator 25.
  • the end of the insulator engages in the bore of the end piece 22, made of tinned brass (homogeneous with copper tinned from the braid of the outer conductor), which is provided with two O-rings 23, arranged in internal grooves 24, ensuring pneumatic sealing.
  • the right end of the end piece is soldered to tin at 26 on the braid forming the outer conductor of the coaxial cord. At its other end, the end piece is inserted inside the half-shells 11, abutting on the insulating end washer 15.
  • the end of the coaxial cord is also surrounded by an adhesive heat-shrinkable sleeve 27, which also encloses the end of the end-piece, a stretched self-welding tape 28 surrounding the insulation of the coaxial cord up to the inside of the end-piece 22.
  • the end piece 22 has the essential role of ensuring electrical continuity between the external conductor of the coaxial repeater cord and the half-shells. But it also ensures dimensional adaptation of the outer conductor, a mechanical reinforcement providing the necessary resistance to the pressure due to ser - rabies on the end of the coaxial cable, and the longitudinal sealing tire, with its O-rings and the adhesive heat-shrink tubing.
  • the difference in diameter between the axial conductors of the coaxial cable and of the coaxial repeater cord, in its part beyond the insulating washer 15, is compensated for by surrounding the axial conductor of the repeater cord with an adapter sheath 29 in bronze, which is soldered or brazed with the axial conductor 3A on the end of the axial conductor of the coaxial cable at 14.
  • Capacitive compensation can be provided by arranging around an adapter sleeve, next to the insulating washer 15, one or more split discs 30 made of polyethylene or polytetrafluoroethylene.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Cable Accessories (AREA)

Description

La présente invention concerne un dispositif de raccordement entre les conducteurs extérieurs de deux paires coaxiales, à conducteur axial et conducteur extérieur, dont l'une au moins est un câble coaxial, comportant deux demi-coquilles métalliques munies dans la partie interne de chacune d'elles de gorges dans lesquelles sont insérées des rondelles isolantes et comportant des extrémités chanfreinées, munies de fentes longitudinales et disposées entre les extrémités des conducteurs extérieurs, un manchon recouvrant lesdites demi-coquilles, muni à une extrémité d'un taraudage, et une vis de serrage enfilée sur le conducteur extérieur correspondant et se vissant sur ladite extrémité du manchon de façon à serrer par l'intermédiaire d'une bague conique une extrémité des demi-coquilles.The present invention relates to a connection device between the external conductors of two coaxial pairs, with axial conductor and external conductor, at least one of which is a coaxial cable, comprising two metal half-shells provided in the internal part of each of them of grooves in which are inserted insulating washers and comprising chamfered ends, provided with longitudinal slots and disposed between the ends of the outer conductors, a sleeve covering said half-shells, provided at one end with a tapping, and a screw clamping threaded on the corresponding outer conductor and screwing onto said end of the sleeve so as to clamp by means of a conical ring one end of the half-shells.

Un tel dispositif est connu, par exemple à partir du document FR-A 22 19 553. Selon ce document, le manchon est muni d'un taraudage à chacune de ses extrémités, et une vis de serrage vient se visser dans chacune de celles-ci pour serrer les extrémités des demi-coquilles par l'intermédiaire de bagues coniques, des embouts isolants enfilés dans chacun des conducteurs extérieurs étant par ailleurs disposés à l'intérieur de chaque extrémité des demi-coquilles et munis chacun d'une collerette venant buter sur l'extrémité du conducteur extérieur correspondant.Such a device is known, for example from document FR-A 22 19 553. According to this document, the sleeve is provided with a thread at each of its ends, and a clamping screw is screwed into each of them. ci to clamp the ends of the half-shells by means of tapered rings, insulating end pieces threaded into each of the outer conductors being moreover arranged inside each end of the half-shells and each provided with a flange abutting on the end of the corresponding outer conductor.

Un tel dispositif, bien que satisfaisant pour assurer le raccordement recherché, est un peu complexe, d'un coût appréciable, et nécessite une montage relativement long et délicat (notamment par la nécessité d'assurer la répartition du serrage sur deux vis).Such a device, although satisfactory for ensuring the desired connection, is somewhat complex, of appreciable cost, and requires relatively long and delicate mounting (in particular by the need to ensure the distribution of the tightening on two screws).

La présente invention a pour but de remédier à ces inconvénients et de procurer un dispositif de raccordement plus simple, moins coûteux et d'un montage rapide et plus sûr.The object of the present invention is to remedy these drawbacks and to provide a simpler, less expensive connection device which is quick and safer to assemble.

Le dispositif selon l'invention est caractérisé en ce que l'autre extrémité dudit manchon est usinée intérieurement selon un profil tronconique de conicité correspondant à celle de l'extrémité correspondante des demi-coquilles, et en ce qu'il comporte, dans la partie interne de l'extrémité des demi-coquilles métalliques, extérieurement à la gorge de logement d'une rondelle isolante, et autour de l'extrémité du conducteur, une bague métallique de serrage du conducteur extérieur contre la demi-coquille.The device according to the invention is characterized in that the other end of said sleeve is machined internally according to a frustoconical profile of conicity corresponding to that of the corresponding end of the half-shells, and in that it comprises, in the part internal of the end of the metal half-shells, outside the housing groove of an insulating washer, and around the end of the conductor, a metal ring for clamping the external conductor against the half-shell.

Il est décrit ci-après, à titre d'exemples et en référence aux figures du dessin annexé, deux dispositifs de raccordement selon l'invention.

  • La figure 1 représente en coupe axiale partielle un dispositif de raccordement entre deux câbles coaxiaux de même diamètre.
  • La figure 2 représente en coupe axiale un autre dispositif de raccordement qui relie un câble coaxial à un cordon coaxial de répéteur, dont les diamètres des conducteurs extérieurs sont différents.
It is described below, by way of examples and with reference to the figures of the appended drawing, two connection devices according to the invention.
  • Figure 1 shows in partial axial section a connection device between two coaxial cables of the same diameter.
  • FIG. 2 shows in axial section another connection device which connects a coaxial cable to a coaxial repeater cord, the diameters of the outer conductors of which are different.

Le dispositif de la figure 1 relie deux câbles coaxiaux 1 et 2, le second étant représenté en coupe axiale. Ceux-ci comprennent un conducteur axial tel que 3 et un conducteur extérieur tel que 4, séparés par un isolant 4A et reliés de place en place par des disques espaceurs isolants 5. Le dispositif comprend un manchon extérieur 6, en alliage léger (homogène avec l'aluminium des conducteurs du câble coaxial), muni à l'une de ses extrémités (ici son extrémité gauche) d'un taraudage 7, dans lequel vient se visser une vis de serrage creuse 8 en le même alliage léger, qui vient serrer par l'intermédiaire d'une bague conique 9 l'extrémité conique 10 des demi-coquilles 11.The device of Figure 1 connects two coaxial cables 1 and 2, the second being shown in axial section. These include an axial conductor such as 3 and an external conductor such as 4, separated by an insulator 4A and connected from place to place by insulating spacer discs 5. The device comprises an outer sleeve 6, made of light alloy (homogeneous with the aluminum of the coaxial cable conductors), provided at one of its ends (here its left end) with a thread 7, into which a hollow clamping screw 8 made of the same light alloy is screwed by means of a conical ring 9 the conical end 10 of the half-shells 11.

Les demi-coquilles 11 en alliage léger sont munies en leur milieu d'une rondelle isolante de centrage des conducteurs 12, en polytétrafluoréthylène, logée dans une gorge interne 13. Les conducteurs axiaux sont raccordés l'un à l'autre par une brasure, une soudure, ou un sertissage 14, de façon connue. A chacune de leurs extrémités, et avant leurs parties tronconiques, les demi-coquilles sont munies de rondelles isolantes d'extrémité 15 et 16, également en polytétrafluoréthylène, logées dans des gorges internes 17 et 18, contre lesquelles viennent s'appuyer les isolants des câbles.The light alloy half-shells 11 are provided in their center with an insulating washer for centering the conductors 12, made of polytetrafluoroethylene, housed in an internal groove 13. The axial conductors are connected to each other by a solder, a weld, or a crimp 14, in a known manner. At each of their ends, and before their frustoconical parts, the half-shells are provided with insulating end washers 15 and 16, also made of polytetrafluoroethylene, housed in internal grooves 17 and 18, against which the insulators of the cables.

A son autre extrémité, le manchon 6 comporte une partie intérieure tronconique 19, contre laquelle vient s'appuyer l'extrémité tronconique 20 des demi-coquilles sous l'effet du serrage par la vis 8.At its other end, the sleeve 6 has a frustoconical inner part 19, against which the frustoconical end 20 of the half-shells abuts under the effect of tightening by the screw 8.

Enfin, les extrémités des conducteurs extérieurs sont maintenues en bon contact avec les demi-coquilles grâce à des bagues d'extrémité 21 en acier, venant s'appuyer sur les rondelles d'extrémité des demi-coquilles telles que 16.Finally, the ends of the external conductors are kept in good contact with the half-shells by means of steel end rings 21, which come to rest on the end washers of the half-shells such as 16.

On voit que le manchon 6 est une pièce relativement simple, ne comportant qu'un seul taraudage, et que le serrage du dispositif est assuré par une seule vis 8, venant appuyer sur les demi-coquilles par une seule bague conique 9. Le raccord est plus simple et moins encombrant qu'un raccord connu à deux vis de serrage.We see that the sleeve 6 is a relatively simple piece, having only one thread, and that the tightening of the device is ensured by a single screw 8, pressing on the half-shells by a single conical ring 9. The fitting is simpler and less bulky than a known connector with two clamping screws.

Dans le dispositif de la figure 2 raccordant un câble coaxial à un cordon coaxial de répéteur, la partie gauche de la figure, du côté du câble coaxial, est analogue à la partie droite de la figure 1. L'extrémité tronconique 20 des demi-coquilles est serrée contre la partie interne tronconique 19 du manchon.In the device of FIG. 2 connecting a coaxial cable to a coaxial repeater cord, the left part of the figure, on the side of the coaxial cable, is similar to the right part of FIG. 1. The frustoconical end 20 of the half shells is pressed against the frustoconical internal part 19 of the sleeve.

Le cordon coaxial de répéteur comprend un conducteur axial 3A et un conducteur extérieur 5A, séparés par un isolant 25. L'extrémité de l'isolant s'engage dans l'alésage de l'embout 22, en laiton étamé (homogène avec le cuivre étamé de la tresse du conducteur extérieur), qui est muni de deux joints toriques 23, disposés dans des gorges internes 24, assurant l'étanchéité pneumatique. L'extrémité droite de l'embout est soudée à l'étain en 26 sur la tresse formant conducteur extérieur du cordon coaxial. A son autre extrémité, l'embout s'insère à l'intérieur des demi-coquilles 11, en butée sur la rondelle isolante d'extrémité 15. L'extrémité du cordon coaxial est par ailleurs entourée d'une gaîne thermorétractable adhésive 27, qui vient en outre enserrer l'extrémité de l'embout, un ruban auto-soudable étiré 28 entourant l'isolant du cordon coaxial jusqu'à l'intérieur de l'embout 22.The coaxial repeater cord comprises an axial conductor 3A and an external conductor 5A, separated by an insulator 25. The end of the insulator engages in the bore of the end piece 22, made of tinned brass (homogeneous with copper tinned from the braid of the outer conductor), which is provided with two O-rings 23, arranged in internal grooves 24, ensuring pneumatic sealing. The right end of the end piece is soldered to tin at 26 on the braid forming the outer conductor of the coaxial cord. At its other end, the end piece is inserted inside the half-shells 11, abutting on the insulating end washer 15. The end of the coaxial cord is also surrounded by an adhesive heat-shrinkable sleeve 27, which also encloses the end of the end-piece, a stretched self-welding tape 28 surrounding the insulation of the coaxial cord up to the inside of the end-piece 22.

L'embout 22 a pour rôle essentiel d'assurer la continuité électrique entre le conducteur extérieur de cordon coaxial de répéteur et les demi-coquilles. Mais il assure en outre une adaptation dimensionnelle de ce conducteur extérieur, un renfort mécanique procurant la résistance nécessaire à la pression dûe au ser- rage sur l'extrémité du cordon coaxial, et l'étanchéité pneumatique longitudinale, grâce à ses joints toriques et à la gaîne thermorétractable adhésive.The end piece 22 has the essential role of ensuring electrical continuity between the external conductor of the coaxial repeater cord and the half-shells. But it also ensures dimensional adaptation of the outer conductor, a mechanical reinforcement providing the necessary resistance to the pressure due to ser - rabies on the end of the coaxial cable, and the longitudinal sealing tire, with its O-rings and the adhesive heat-shrink tubing.

La différence de diamètre entre les conducteurs axiaux du câble coaxial et du cordon coaxial de répéteur, dans sa partie au-delà de la rondelle isolante 15 est compensée en entourant le conducteur axial du cordon répéteur, d'un fourreau adaptateur 29 en bronze, qui est soudé ou brasé avec le conducteur axial 3A sur l'extrémité du conducteur axial du câble coaxial en 14.The difference in diameter between the axial conductors of the coaxial cable and of the coaxial repeater cord, in its part beyond the insulating washer 15, is compensated for by surrounding the axial conductor of the repeater cord with an adapter sheath 29 in bronze, which is soldered or brazed with the axial conductor 3A on the end of the axial conductor of the coaxial cable at 14.

Une compensation capacitive peut être apportée en disposant autour de fourreau adaptateur, à côté de la rondelle isolante 15, un ou plusieurs disques fendus 30 en polyéthylène ou polytétrafluoréthylène.Capacitive compensation can be provided by arranging around an adapter sleeve, next to the insulating washer 15, one or more split discs 30 made of polyethylene or polytetrafluoroethylene.

Claims (3)

1. A device for connecting together the outer conductors of two coaxial pairs with respective axial conductors (3) and outer conductors (4), at least one of these pairs being a coaxial cable, said device including two metal half-shells (11), the inner portions of which are provided with grooves (17, 18) in which insulating washers (15, 16) are inserted, and comprising chamfered ends (10) which are provided with longitudinal slots, said half-shells being disposed between the ends of the outer conductors, a sleeve (6) which covers said half-shells and one of whose ends is tapped at (7), and a clamping screw (8) which is fitted onto the corresponding outer conductor and is screwed onto said end of the sleeve so that by means of a conical ring (9), it clamps one end of the half-shells, characterized In that the inside of the other end of said sleeve is machined to give it a frusto-conical profile (19) whose conical shape matches that of the corresponding ends (20) of the half-shells, and in that it comprises, in the inner portion of the end of the metal half-shells, outside the groove in which an insulating washer is inserted, and around the end of the conductor, a metal ring (21) for clamping the outer conductor against the half-shell.
2. A device according to claim 1, for connecting a coaxial cable to a coaxial pair of smaller diameter, in particular to the coaxial flexible lead of a repeater, characterized in that on the smaller diameter coaxial pair side, said device includes a metal end member (22) which fits into the end of the half-shells, said end member being provided with internal pneumatic seals (23) and an adhesive heat- shrinkable sheath (27) which surrounds the opposite end of said end member with regard to the half-shells.
3. A device according to claim 2, characterized in that it also includes a- metal adapter sheath (29) which surrounds the axial conductor (3A) of the coaxial flexible lead beyond the end member, said adapter sheath having an outside diameter equal to that of the axial conductor of the coaxial cable (1).
EP80100793A 1979-02-23 1980-02-18 Connecting device between the outer conductors of two coaxial pairs Expired EP0016340B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7904658A FR2449981A1 (en) 1979-02-23 1979-02-23 CONNECTION DEVICE BETWEEN THE EXTERNAL CONDUCTORS OF TWO COAXIAL PAIRS
FR7904658 1979-02-23

Publications (2)

Publication Number Publication Date
EP0016340A1 EP0016340A1 (en) 1980-10-01
EP0016340B1 true EP0016340B1 (en) 1983-09-21

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EP80100793A Expired EP0016340B1 (en) 1979-02-23 1980-02-18 Connecting device between the outer conductors of two coaxial pairs

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US (1) US4493946A (en)
EP (1) EP0016340B1 (en)
JP (1) JPS55115273A (en)
CA (1) CA1132674A (en)
DE (1) DE3064865D1 (en)
FR (1) FR2449981A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5888095A (en) * 1995-12-29 1999-03-30 Rally Manufacturing, Inc. Coaxial cable connector
US6217380B1 (en) 1999-06-08 2001-04-17 Commscope Inc. Of North Carolina Connector for different sized coaxial cables and related methods
US6809265B1 (en) * 2003-04-15 2004-10-26 Delphi Technologies, Inc. Terminal assembly for a coaxial cable
DE102008012591B4 (en) * 2008-02-15 2013-08-29 Rohde & Schwarz Gmbh & Co. Kg Coaxial cable with support disks

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425959A (en) * 1942-07-18 1947-08-19 Rca Corp Coaxial line coupling
US3673314A (en) * 1971-02-22 1972-06-27 Northern Electric Co Cable connectors
BE795044A (en) * 1972-02-08 1973-08-06 Philips Nv CONNECTION OF KOAXIAL CABLE ENDS FOR CENTRAL ANTENNA SYSTEMS
US3778535A (en) * 1972-05-12 1973-12-11 Amp Inc Coaxial connector
ES415597A1 (en) * 1972-06-26 1976-06-01 Standard Electrica Sa Coaxial cable joint
FR2219553B1 (en) * 1973-02-26 1977-07-29 Cables De Lyon Geoffroy Delore
GB1424068A (en) * 1973-04-10 1976-02-04 Standard Telephones Cables Ltd Jointing arrangement for a coaxial core
GB1492978A (en) * 1975-05-23 1977-11-23 Post Office Coaxial cable joints and method of making same

Also Published As

Publication number Publication date
CA1132674A (en) 1982-09-28
DE3064865D1 (en) 1983-10-27
EP0016340A1 (en) 1980-10-01
US4493946A (en) 1985-01-15
FR2449981B1 (en) 1981-06-26
FR2449981A1 (en) 1980-09-19
JPS55115273A (en) 1980-09-05

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