EP0058249A1 - Connection device for a shielded cable - Google Patents

Connection device for a shielded cable Download PDF

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Publication number
EP0058249A1
EP0058249A1 EP81110023A EP81110023A EP0058249A1 EP 0058249 A1 EP0058249 A1 EP 0058249A1 EP 81110023 A EP81110023 A EP 81110023A EP 81110023 A EP81110023 A EP 81110023A EP 0058249 A1 EP0058249 A1 EP 0058249A1
Authority
EP
European Patent Office
Prior art keywords
clamping
braid
connection device
end housing
clamping ring
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.)
Granted
Application number
EP81110023A
Other languages
German (de)
French (fr)
Other versions
EP0058249B1 (en
Inventor
Walter Meier
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.)
Rheinmetall Air Defence AG
Original Assignee
Contraves AG
Oerlikon Contraves AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Contraves AG, Oerlikon Contraves AG filed Critical Contraves AG
Publication of EP0058249A1 publication Critical patent/EP0058249A1/en
Application granted granted Critical
Publication of EP0058249B1 publication Critical patent/EP0058249B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • H01R9/0521—Connection to outer conductor by action of a nut

Definitions

  • the invention relates to a releasable rotationally symmetrical connection device for a shielded cable with an outer conductor made of a braid, consisting of a clamping ring with a clamping surface that bears on the outer surface of the braid, a plug end housing with a clamping surface that bears on the inner surface of the braid and a union nut which can be screwed to the plug end housing by axial movement and which fixes the braid between the clamping surfaces by means of axial pressure.
  • a connection device is known from DE-AS-23 43 030, which clamps the braid between two conical surfaces. The precisely reproducible production of conically shaped and coordinated surfaces places high demands on processing, which results in high production costs.
  • connection device which can be produced inexpensively and reproducibly and is easy to assemble and repair, and which also ensures that the braid is securely fixed in the event of strong mechanical loads.
  • the clamping ring is largely U-shaped in profile, the inner leg runs essentially parallel to the axis of the connecting device and the outer leg is angled outwards, that the clamping surface of the clamping ring delimited by the two legs is arranged essentially perpendicular to the axis of the connecting device, and that a clamping element is formed on the plug end housing, which when the connecting device is assembled lies between the legs.
  • connection device has the advantage that a shielded cable can be connected without special tools and without a soldering process.
  • the coaxial cable 2 has an electrically conductive, tubular shield, which is designed as an expandable braid 3 with the outer surface 18 and the inner surface 19, one or more inner conductors 4, an insulating part 6 located within the braid 3 and an outer insulating jacket 14.
  • the plug end housing 30, the clamping ring 10 and the union nut 20 are made of an electrically conductive material, for example aluminum, and are provided at least on the outer sides with a protective covering, not shown in the figures.
  • the clamping ring 10 is essentially cylindrical in shape and has an opening 15 through which the cable 2, partially freed from the outer insulating jacket 14, can be pulled.
  • the largely U-shaped clamping ring 10 has a clamping surface 7 arranged essentially perpendicular to the axis I of the connection device 1, an inner leg 12 arranged perpendicularly thereto and an outer leg 13 angled outwards.
  • the clamping surface 7 is preferably flat, but can also indented, corrugated or provided on the surface with a slip-inhibiting structure.
  • the outer leg 13 is angled so far outwards that its outer surface 23 rests on the conical pressure surface 21 of the union nut 20.
  • the plug end housing 30 is essentially cylindrical in shape and consists of the annular clamping element 31 with the clamping surface 32, the external thread 34 offset therefrom by a round groove 33 and the two molded rings 35 and 36 which are separated from one another by a groove 37.

Abstract

1. Releasable axially symmetrical connection device (1) for a shielded cable (2) with an outer conductor of braid (3), the device comprising a clamping ring (10) with a clamping surface (7) which lies on the outer surface (18) of the braid (3), a connector end housing (30) with a clamping surface (32) which lies on the inner surface (19) of the braid (3), and a clamping nut (20) which can be screwed together with the connector end housing (30) by axial movement, and which by axial pressure secures the braid (3) between the two clamping surfaces (7, 32), characterised in that the clamping ring (10) is substantially U-shaped in profile, whereby the inner limb (12) runs substantially parallel to the axis (I) of the connection device (1), and the outer limb (13) is bent outwardly, in that the clamping surface (7) of the clamping ring delimited by the two limbs (12, 13) is arranged substantially perpendicular to the axis (I) of the connection device (1), and in that there is moulded onto the connector end housing (30) a clamping element (31) which lies between the limbs (12, 13) of the clamping ring (10) when the connection device (1) is assembled.

Description

Die Erfindung bezieht sich auf eine lösbare rotationssymmetrische Anschlussvorrichtung für ein abgeschirmtes Kabel mit einem Aussenleiter aus einem Geflecht, bestehend aus einem Klemmring mit einer Klemmfläche, die an der Aussenfläche des Geflechts anliegt, einem Steckerendgehäuse mit einer Klemmfläche, die an der Innenfläche des Geflechts anliegt und einer Ueberwurfmutter, die mit dem Steckerendgehäuse durch Axialbewegung verschraubbar ist und durch axialen Druck das Geflecht zwischen den Klemmflächen festlegt.The invention relates to a releasable rotationally symmetrical connection device for a shielded cable with an outer conductor made of a braid, consisting of a clamping ring with a clamping surface that bears on the outer surface of the braid, a plug end housing with a clamping surface that bears on the inner surface of the braid and a union nut which can be screwed to the plug end housing by axial movement and which fixes the braid between the clamping surfaces by means of axial pressure.

Zum strahlungsdichten Anschliessen eines durch ein Geflecht gegen äussere elektromagnetische Strahlung abgeschirmtes Kabel sind zahlreiche auf dem Prinzip der Klemmung beruhende Vorrichtungen bekannt, die jedoch nur mit hohen Kosten hergestellt werden können. So ist durch die DE-AS-23 43 030 eine Anschlussvorrichtung bekannt, welche das Geflecht zwischen zwei konischen Flächen festklemmt. Die exakt reproduzierbare Herstellung konisch geformter und aufeinander abgestimmter Flächen stellt hohe Anforderungen an die Verarbeitung, wodurch hohe Herstellungskosten entstehen.Numerous devices based on the principle of clamping are known for the radiation-tight connection of a cable shielded by a braid against external electromagnetic radiation, but these devices can only be produced at high costs. A connection device is known from DE-AS-23 43 030, which clamps the braid between two conical surfaces. The precisely reproducible production of conically shaped and coordinated surfaces places high demands on processing, which results in high production costs.

Es ist deshalb Aufgabe der Erfindung, eine Anschlussvorrichtung zu schaffen, welche kostengünstig und reproduzierbar hergestellt und einfach montiert und repariert werden kann, als auch bei starken mechanischen Beanspruchungen eine sichere Festlegung des Geflechts gewährleistet.It is therefore an object of the invention to provide a connection device which can be produced inexpensively and reproducibly and is easy to assemble and repair, and which also ensures that the braid is securely fixed in the event of strong mechanical loads.

Diese Aufgabe wird dadurch gelöst, dass der Klemmring im Profil weitgehend U-förmig ist, wobei der innere Schenkel im wesentlichen parallel zur Achse der Anschlussvorrichtung verläuft und der äussere Schenkel nach aussen abgewinkelt ist, dass die durch die beiden Schenkel begrenzte Klemmfläche des Klemmrings im wesentlichen senkrecht zur Achse der Anschlussvorrichtung angeordnet ist, und dass am Steckerendgehäuse ein Klemmelement angeformt ist, das bei zusammengefügter Anschlussvorrichtung zwischen den Schenkeln liegt.This object is achieved in that the clamping ring is largely U-shaped in profile, the inner leg runs essentially parallel to the axis of the connecting device and the outer leg is angled outwards, that the clamping surface of the clamping ring delimited by the two legs is arranged essentially perpendicular to the axis of the connecting device, and that a clamping element is formed on the plug end housing, which when the connecting device is assembled lies between the legs.

Die erfindungsgemässe Anschlussvorrichtung hat den Vorteil, dass ein abgeschirmtes Kabel ohne besondere Werkzeuge und ohne Lötvorgang angeschlossen werden kann.The connection device according to the invention has the advantage that a shielded cable can be connected without special tools and without a soldering process.

Im weiteren wird ein Ausführungsbeispiel des Erfindungsgegenstandes anhand der Zeichnung näher erläutert.An exemplary embodiment of the subject matter of the invention is explained in more detail with reference to the drawing.

Es zeigen:

  • Fig. 1 die in übergrossem Massstab dargestellte Seitenansicht der montierten Anschlussvorrichtung, wobei zur besseren Sichtbarkeit einige Teile im Längsschnitt dargestellt sind,
  • Fig. 2 die Seitenansicht der Anschlussvorrichtung mit distanziert dargestellten Einzelteilen.
Show it:
  • 1 is an enlarged side view of the mounted connection device, some parts being shown in longitudinal section for better visibility,
  • Fig. 2 shows the side view of the connection device with individual parts shown distantly.

Wie Figur 1 und Figur 2 zeigen, weist das Koaxialkabel 2 eine elektrisch leitende, rohrförmige Abschirmung, die als erweiterbares Geflecht 3 mit der Aussenfläche 18 und der Innenfläche 19 ausgebildet ist, einen oder mehrere Innenleiter 4, einen innerhalb des Geflechts 3 befindlichen Isolierteil 6 sowie einen äusseren Isoliermantel 14 auf. Das Steckerendgehäuse 30, der Klemmring 10 sowie die Ueberwurfmutter 20 sind aus einem elektrisch leitenden Material, beispielsweise Aluminium hergestellt, und zumindest an den Aussenseiten mit einem in den Figuren nicht dargestellten Schutzbelag versehen.As FIG. 1 and FIG. 2 show, the coaxial cable 2 has an electrically conductive, tubular shield, which is designed as an expandable braid 3 with the outer surface 18 and the inner surface 19, one or more inner conductors 4, an insulating part 6 located within the braid 3 and an outer insulating jacket 14. The plug end housing 30, the clamping ring 10 and the union nut 20 are made of an electrically conductive material, for example aluminum, and are provided at least on the outer sides with a protective covering, not shown in the figures.

Der Klemmring 10 ist im wesentlichen zylindrisch geformt und weist eine Oeffnung 15 auf, durch welche das teilweise vom äusseren Isoliermantel 14 befreite Kabel 2 durchgezogen werden kann. Der im Profil weitgehend U-förmige Klemmring 10 besitzt eine im wesentlichen senkrecht zur Achse I der Anschlussvorrichtung 1 angeordnete Klemmfläche 7, einen senkrecht dazu angeordneten inneren Schenkel 12 und einen gegen aussen gewinkelten äusseren Schenkel 13. Die Klemmfläche 7 ist vorzugsweise eben, kann jedoch auch eingebuchtet, gewellt oder an der Oberfläche mit einer gleithemmenden Struktur versehen sein. Der äussere Schenkel 13 ist so weit nach aussen abgewinkelt, dass er mit seiner äusseren Fläche 23 auf der konischen Druckfläche 21 der Ueberwurfmutter 20 aufliegt.The clamping ring 10 is essentially cylindrical in shape and has an opening 15 through which the cable 2, partially freed from the outer insulating jacket 14, can be pulled. The largely U-shaped clamping ring 10 has a clamping surface 7 arranged essentially perpendicular to the axis I of the connection device 1, an inner leg 12 arranged perpendicularly thereto and an outer leg 13 angled outwards. The clamping surface 7 is preferably flat, but can also indented, corrugated or provided on the surface with a slip-inhibiting structure. The outer leg 13 is angled so far outwards that its outer surface 23 rests on the conical pressure surface 21 of the union nut 20.

Das Steckerendgehäuse 30 ist im wesentlichen zylindrisch geformt und besteht aus dem ringförmigen Klemmelement 31 mit der Klemmfläche 32, dem durch eine Rundnut 33 davon abgesetzten Aussengewinde 34 und den beiden angeformten Ringen 35 und 36, die durch eine Nut 37 voneinander getrennt sind.The plug end housing 30 is essentially cylindrical in shape and consists of the annular clamping element 31 with the clamping surface 32, the external thread 34 offset therefrom by a round groove 33 and the two molded rings 35 and 36 which are separated from one another by a groove 37.

Zum Anschliessen des Koaxialkabels 2 wird ein Abschnitt des Isoliermantels 14 entfernt und damit ein Teil des Geflechts 3 freigelegt. Danach wird das Kabel 2 mit dem Geflecht 3 durch die Oeffnung 16 der Ueberwurfmutter 20 und durch die Oeffnung 15 des Klemmrings 10 geschoben. Das Geflecht wird nun nach aussen über den Klemmring 10 gelegt und das Steckerendgehäuse 30 mit seiner Klemmfläche 32 auf das Geflecht 3 gesetzt, mit der Ueberwurfmutter 20 verschraubt und mit einem definierten Drehmoment festgezogen. Durch den Druck der Ueberwurfmutter 20 auf den äusseren Schenkel 13 des Klemmrings 10 wird das Geflecht 3 zwischen die Klemmfläche 32 des Steckerendgehäuses 30 und die Klemmfläche 7 des Klemmrings 10 geklemmt. Abschliessend wird das nur teilweise im Längsschnitt dargestellte Warmschrumpfformteil 40 in bekannter Weise über die Anschlussvorrichtung 1 montiert, womit ein Schutz vor Feuchtigkeit, Staub und mechanischen Einwirkungen erreicht wird.To connect the coaxial cable 2, a section of the insulating jacket 14 is removed and thus part of the braid 3 is exposed. Then the cable 2 with the braid 3 is pushed through the opening 16 of the union nut 20 and through the opening 15 of the clamping ring 10. The braid is now placed outside over the clamping ring 10 and the plug end housing 30 with its clamping surface 32 is placed on the braid 3, screwed with the union nut 20 and tightened with a defined torque. The braid 3 is clamped between the clamping surface 32 of the connector end housing 30 and the clamping surface 7 of the clamping ring 10 by the pressure of the union nut 20 on the outer leg 13 of the clamping ring 10. Finally, the heat-shrinkable molded part 40, which is only partially shown in longitudinal section, is mounted in a known manner via the connection device 1, whereby protection against moisture, dust and mechanical influences is achieved.

Claims (1)

Lösbare rotationssymmetrische Anschlussvorrichtung (1) für ein abgeschirmtes Kabel (2) mit einem Aussenleiter aus einem Geflecht (3), bestehend aus einem Klemmring (10) mit einer Klemmfläche (7) die an der Aussenfläche (18) des Geflechts (3) anliegt, einem Steckerendgehäuse (30) mit einer Klemmfläche (32) die an der Innenfläche (19) des Geflechts (3) anliegt und einer Ueberwurfmutter (20) die mit dem Steckerendgehäuse (30) durch Axialbewegung verschraubbar ist und durch axialen Druck das Geflecht (3) zwischen den Klemmflächen (7,32) festlegt, dadurch gekennzeichnet, dass der Klemmring (10) im Profil weitgehend U-förmig ist, wobei der innere Schenkel (12) im wesentlichen parallel zur Achse (I) der Anschlussvorrichtung (1) verläuft und der äussere Schenkel (13) nach aussen abgewinkelt ist, dass die durch die beiden Schenkel (12,13) begrenzte Klemmfläche (7) des Klemmrings im wesentlichen senkrecht zur Achse (I) der Anschlussvorrichtung (1) angeordnet ist, und dass am Steckerendgehäuse (30) ein Klemmelement (31) angeformt ist, das bei zusammengefügter Anschlussvorrichtung (1) zwischen den Schenkeln (12,13) liegt.Detachable rotationally symmetrical connection device (1) for a shielded cable (2) with an outer conductor made of a braid (3), consisting of a clamping ring (10) with a clamping surface (7) which bears on the outer surface (18) of the braid (3), a plug end housing (30) with a clamping surface (32) which bears on the inner surface (19) of the braid (3) and a union nut (20) which can be screwed to the plug end housing (30) by axial movement and the braid (3) by axial pressure between the clamping surfaces (7, 32), characterized in that the clamping ring (10) is largely U-shaped in profile, the inner leg (12) running essentially parallel to the axis (I) of the connecting device (1) and the outer leg (13) is angled outwards so that the clamping surface (7) of the clamping ring, delimited by the two legs (12, 13), is arranged essentially perpendicular to the axis (I) of the connection device (1), and that the connector end housing (3 0) a clamping element (31) is formed which, when the connecting device (1) is assembled, lies between the legs (12, 13).
EP19810110023 1981-02-05 1981-12-01 Connection device for a shielded cable Expired EP0058249B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH76481 1981-02-05
CH764/81 1981-02-05

Publications (2)

Publication Number Publication Date
EP0058249A1 true EP0058249A1 (en) 1982-08-25
EP0058249B1 EP0058249B1 (en) 1984-11-14

Family

ID=4194625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810110023 Expired EP0058249B1 (en) 1981-02-05 1981-12-01 Connection device for a shielded cable

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EP (1) EP0058249B1 (en)
DE (1) DE3167231D1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694183A (en) * 1953-09-29 1954-11-09 George G Edlen Tap-off coupler with fixed attenuation for coaxial lines
DE2048694A1 (en) * 1970-10-03 1972-04-06 Williams Instruments Electrical cable connector, in particular for shielded cables
US3781762A (en) * 1972-06-26 1973-12-25 Tidal Sales Corp Connector assembly
DE2260734A1 (en) * 1972-12-12 1974-06-20 Spinner Georg HF COAXIAL CONNECTOR
FR2286522A1 (en) * 1974-09-26 1976-04-23 Teldix Gmbh PLUG CONNECTOR DEVICE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694183A (en) * 1953-09-29 1954-11-09 George G Edlen Tap-off coupler with fixed attenuation for coaxial lines
DE2048694A1 (en) * 1970-10-03 1972-04-06 Williams Instruments Electrical cable connector, in particular for shielded cables
US3781762A (en) * 1972-06-26 1973-12-25 Tidal Sales Corp Connector assembly
DE2260734A1 (en) * 1972-12-12 1974-06-20 Spinner Georg HF COAXIAL CONNECTOR
FR2286522A1 (en) * 1974-09-26 1976-04-23 Teldix Gmbh PLUG CONNECTOR DEVICE

Also Published As

Publication number Publication date
DE3167231D1 (en) 1984-12-20
EP0058249B1 (en) 1984-11-14

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