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EP0022627B1 - Elektrischer Verbinder für den Anschluss elektrischer Koaxialkabel - Google Patents

Elektrischer Verbinder für den Anschluss elektrischer Koaxialkabel Download PDF

Info

Publication number
EP0022627B1
EP0022627B1 EP80302052A EP80302052A EP0022627B1 EP 0022627 B1 EP0022627 B1 EP 0022627B1 EP 80302052 A EP80302052 A EP 80302052A EP 80302052 A EP80302052 A EP 80302052A EP 0022627 B1 EP0022627 B1 EP 0022627B1
Authority
EP
European Patent Office
Prior art keywords
ferrule
cable
body member
fingers
outer conductor
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
EP80302052A
Other languages
English (en)
French (fr)
Other versions
EP0022627A1 (de
Inventor
Edgar Wilmot Forney Jr.
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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 AMP Inc filed Critical AMP Inc
Priority to AT80302052T priority Critical patent/ATE3924T1/de
Publication of EP0022627A1 publication Critical patent/EP0022627A1/de
Application granted granted Critical
Publication of EP0022627B1 publication Critical patent/EP0022627B1/de
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

Definitions

  • This invention relates to an electrical connector for terminating coaxial electrical cable, and particularly cable of the type having a tubular solid outer conductor, for example of copper, surrounding a dielectric member which in turn surrounds a centre conductor.
  • Known methods of terminating such cable, and in particular of establishing an electrical connection to the outer conductor thereof include the use of solder, or the use of an electrical connector including a back-up member which is inserted between the outer conductor and the dielectric layer and a crimping sleeve which is then crimped on to the outer conductor over the back-up member.
  • This known electrical connector comprises a tubular conductive body member having two axially aligned portions of mutually different internal diameter, through both of which portions the cable can pass, and a ferrule locatable within the larger internal diameter portion of the body member with the cable passing through the ferrule, the ferrule being deformable under forces applied thereto axially of the cable thereby to secure the cable within the body with the outer conductor of the cable electrically connected to the body member.
  • the ferrule is of ductile material and is contained wholly within the larger internal diameter portion of the body member, the axial forces applied to the ferrule causing inelastic deformation thereof and also slight deformation of the body member and the outer conductor of the cable, the deformation being such as to provide residual stress in the body member and in the cable sufficient to lock the body member to the cable and thus provide the required electrical and mechanical connection.
  • a difficulty which arises with this known connector is that in order to compress the ferrule axially as required a tool must be used, which has a part which can enter the larger internal diameter portion of the body member while surrounding the cable, and this can cause difficulties with connectors of relatively small size. Further, the tooling used must comprise a plurality of parts which must be assembled about a connector and cable to be connected and which must be disassembled and removed after use.
  • DE-B-1 1 17 687 there is disclosed another connector of similar form in which the ferrule has an outwardly directed flange at one end, and a plurality of axially extending blunt ended fingers extending from the periphery at the other end.
  • the smaller internal diameter portion of the body member tapers inwardly in the direction away from the larger internal diameter portion such that as the fingers on the ferrule are urged into the smaller internal diameter portion of the body member, by a nut member engaged with the body member, the fingers are deflected inwardly such that their blunt ends bite into and grip the outer conductor of the cable and thus establish an electrical connection thereto.
  • a difficulty which arises with this known connector is that the fingers on the ferrule are relatively thick, and this, together with their blunt ends and the tapering form of the smaller internal diameter portions of the body member, results in only the tips of the fingers engaging the outer conductor of the cable with any force; that there is only a very small area of contact between the fingers and the outer conductor, this being undesirable, particularly when the cable is to carry high frequency signals. Further, there is little movement of the ferrule axially along the cable in gripping engagement therewith, such movement being desirable to break down any insulating oxide coatings present on the cable or ferrule and thus ensure a satisfactory electrical connection.
  • an electrical connector for terminating coaxial electrical cable of the type having a tubular solid outer conductor comprising a tubular conductive body member having two axially aligned portions of mutually different internal diameter, through both of which portions the cable can pass, and a ferrule locatable within the larger internal diameter portion of the body member with the cable passing therethrough, the ferrule having an outwardly directed annular flange at one end, and a plurality of fingers extending from the periphery at the other end and parallel to the axis of the ferrule, the arrangement being such that with the fingers on the ferrule directed towards the smaller internal diameter portion of the body member, movement of the ferrule along the cable with the body member held fixed relative to the cable, causes the fingers on the ferrule to be deflected inwardly on entry into the smaller diameter end portion of the body member, the fingers engaging the outer conductor of the cable whereby an electrical connection is established between the outer conductor of the cable and the body member, characterised in that the ferrul
  • the connector of this invention has the advantages that there is a high area of contact between the ferrule and the outer conductor of the cable provided by the fingers and the body portion of the ferrule, and since the fingers are compressed into penetrating engagement with the outer conductor no difficulties due to oxide coatings arise.
  • the connector shown in Figures 1 to 4 is for terminating a coaxial electrical cable 100 having a semi-rigid tubular solid outer conductor 101 which surrounds a dielectric material layer 102 which in turn surrounds a solid centre conductor 103, and comprises a tubular conductive metal body member 1 having two axially aligned portions 2 and 3 of mutually different internal diameter, through both of which portions 2 and 3 the cable 100 can pass, as shown in Figure 2.
  • the body member 1 is formed with an outwardly directed annular rib 4.
  • the larger internal diameter portion 2 of the body member 1 is formed with a plurality of axially extending splines 5, best seen in Figure 1.
  • the connector also comprises a coupling ring 6 having a hexagonal external cross-section for cooperation with a spanner and being externally threaded, as shown at 7, from one end, and having an inwardly directed annular lip 8 at the other end.
  • the lip 8 defines an aperture which will receive the portion 2 of the body member 1 but will not pass the rib 4 thereof.
  • an annular resilient sealing member 9 having an external diameter substantially equal to that of the rib 4 on the body member 1, and an internal diameter to receive the portion 3 of the body member 1 and be retained thereon, and a metal ferrule 10.
  • the ferrule 10 comprises a tubular body portion 11 having an outwardly directed annular flange 12 at one end, and a plurality of axially extending pointed fingers 13 extending from the periphery at the other end, the fingers 13 being thinner than the remainder of the ferrule 10.
  • the end of the cable 100 is prepared by removal of portions of the outer conductor 101 and dielectric layer 102 to leave a portion of the centre conductor 103 exposed as shown in the drawings, to constitute a centre contact for the connector.
  • the sealing member 9 is mounted on the portion 3 of the body member 1 abutting the rib 4, and the coupling ring 6 is mounted on the portion 2 of the body member 1 with the lip 8 abutting the rib 4 and the coupling ring 6 extending over and beyond the portion 3 of the body member 1.
  • the ferrule 10 is positioned on the cable 100 with the fingers 13 of the ferrule 10 directed towards the free end of the cable 100, and the free end of the cable 100 is then inserted into the body member 1 through the free end of portion 2 thereof until the end of the outer conductor 101 and dielectric layer 102 are flush with the free end of the portion 3 of the body member 1, as shown in Figure 2.
  • the ferrule 10 is then urged along the cable 100 until the fingers 13 and body portion 11 of the ferrule 10 enter the portion 2 of the body member 1.
  • the assembly is engaged by a tool (not shown in detail) having a pair of dies one 200 of which (see Figure 3) embraces the cable 100 and engages the flange 12 of the ferrule 10 and the other 201 of which engages the free end of the cable 100 within the coupling ring 6, as shown in Figure 3.
  • the die 201 is formed with a blind hole 202 to freely receive the centre contact portion of the centre conductor 103 of the cable 100.
  • the dies 200, 201 are then moved axially of the cable 100 towards each other, as indicated by arrows in Figure 3, thereby to urge the ferrule 10 further into the body member 1.
  • the fingers 13 thereof are deflected inwardly on entry into the smaller internal diameter portion 3 of the body member 1, the fingers 13 becoming compressed between the outer conductor 101 of the cable 100 and the wall of the portion 3 of the body member 1, causing slight deformation of the outer conductor 101 of the cable 100, whereby the required electrical connection is established between the outer conductor 101 and the body member 1.
  • the splines 5 bite into the ferrule body portion 11, as shown in Figure 4, thereby to lock the ferrule 10 to the body member 1 and prevent relative rotary movement therebetween.
  • the ferrule 10 is urged into the body member 1 until the flange 12 on the ferrule 10 abuts the free end of the portion 2 of the body member 1, as shown in Figure 3, whereafter the tooling dies 200, 201 are removed leaving the completed connector terminating the cable 100 and ready for mating with an appropriate other connector (not shown) and coupling thereto by means of the coupling ring 6.
  • the lip 8 on the coupling ring 6 is positioned between the rib 4 on the body member 1 and the flange 12 on the ferrule 10 whereby the coupling ring 6 is secured to the body member 1 in relatively rotatable manner.
  • this other connector uses a separate centre contact member 300 which is crimped to the centre conductor 103 of the cable 100 rather than using the centre conductor 103 itself as the centre contact.
  • the contact member 300 is supported, in known manner, within the portion 3 of the body member 1, by a dielectric material insert 301 located at the free end of the portion 2.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Communication Cables (AREA)
  • Insulated Conductors (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (3)

1. Ein elektrischer Verbinder zum Abschließen eines elektrischen Koaxialkabels (100) der Art, die einen rohrförmigen, massiven Außenleiter (101) hat, mit einem rohrförmigen leitfähigen Gehäuseteil (1), welches zwei axial ausgerichtete Bereiche (2, 3) mit voneinander verschiedenem Innendurchmesser hatr, durch die beide (2, 3) hindurch das Kabel (100) sich erstrecken kann, und mit einem Hülsenring (10), der innerhalb des Bereichs (2) des Gehäuseteils (1) mit dem größeren Innendurchmesser anbringbar ist, wobei das Kabel (100) sich durch denselben hindurcherstreckt und der Hülsenring einen nach außen weisenden, ringförmigen Flansch (12) an einem Ende hat und sich eine Vielzahl von Fingern (13) vom Umfang am anderen Ende und parallel zur Achse des Hülsenringes erstreckt, wobei die Anordnung so ist, daß bei an einem Kabel (100) angebrachtem Gehäuseteil (1) und Hülsenring (10), wobei die Finger (13) am Hülsenring (10) zu dem Bereich (3) des Gehäuseteils (1) mit dem kleineren Innendurchmesser gerichtet sind, eine Bewegung des Hülsenringes (10) längs des Kabels (100) bei gegenüber dem Kabel (100) festgehaltenem Gehäuseteil (1) bewirkt, daß die Finger (13) am Hülsenring (10) beim Eintritt in den Endbereich (3) des Gehäuseteils (1) mit dem kleineren Durchmesser nach innen abgebogen werden und die Finger (13) am Außenleiter (101) des Kabels (100) angreifen, wodurch eine elektrische Verbindung zwischen dem Außenleiter (101) des Kabels (100) und dem Gehäuseteil (1) hergestellt ist, dadurch gekennzeichnet, daß der Hülsenring (10) eine rohrförmigen Körperteil (11) zwischen dem Flansch (12) und den Fingern (13) hat, daß die Finger (13) dünner sind als der Körperteil (11), daß der Bereich (2) des Gehäuseteils (1) mit größerem Innendurchmesser so gestaltet ist, daß bei einer Bewegung des Hülsenringes (10) längs des Kabels (100) der rohrförmige Körperteil (11) des Hülsenringes (10) in den Bereich (2) des Gehäuseteils (1) mit dem größeren Innendurchmesser eintritt und dadurch in innigen Eingriff mit dem Außenleiter (101) des Kabels (100) zusammengedrückt wird, während die Finger (13) am Hülsenring (10) in den bereich (3) des Gehäuseteils (1) mit dem kleineren Innendurchmesser eintreten, der zylindrisch ist, und im wesentlichen über ihre ganze Länge in innigen, eindrigenden Eingriff mit dem Außenleiter (101) des Kabels (100) zusammengepreßt werden.
2. Verbinder nach Anspruch 1, dadurch gekennzeichnet, daß die freien Enden der Finger (13) des Hülsenringes (10) angespitzt sind.
3. Verbinder nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in dem Bereich (2) des Gehäuseteils (1) mit dem größeren Innendurchmesser eine Vielzahl von sich axial erstreckenden inneren Keilzähnen (5) ausgebildet ist, die in den rohrförmige Körperteil (11) des Hülsenringes (10) beißen, wenn der rohrförmige Körperteil (11) des Hülsenringes (10) axial in den Bereich (2) des Gehäuseteils (1) mit dem größeren Durchmesser bewegt wird, um dadurch den Körperteil (11) in innigen Eingriff mit dem Außenleiter (101) des Kabels (100) zusammenzupressen und auch eine relative Drehbewegung zwischen dem Hülsenring (10) und dem Gehäuseteil (1) zu verhüten.
EP80302052A 1979-07-09 1980-06-18 Elektrischer Verbinder für den Anschluss elektrischer Koaxialkabel Expired EP0022627B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80302052T ATE3924T1 (de) 1979-07-09 1980-06-18 Elektrischer verbinder fuer den anschluss elektrischer koaxialkabel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5556479A 1979-07-09 1979-07-09
US55564 1979-07-09

Publications (2)

Publication Number Publication Date
EP0022627A1 EP0022627A1 (de) 1981-01-21
EP0022627B1 true EP0022627B1 (de) 1983-06-22

Family

ID=21998700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80302052A Expired EP0022627B1 (de) 1979-07-09 1980-06-18 Elektrischer Verbinder für den Anschluss elektrischer Koaxialkabel

Country Status (8)

Country Link
EP (1) EP0022627B1 (de)
JP (1) JPS5953668B2 (de)
AT (1) ATE3924T1 (de)
BR (1) BR8004230A (de)
CA (1) CA1132215A (de)
DE (1) DE3063872D1 (de)
ES (1) ES8103494A1 (de)
HK (1) HK81586A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167738A3 (de) * 1984-06-04 1987-07-22 Allied Corporation Elektrischer Verbinder mit Mitteln zum Festklemmen eines Koaxialkabels
US4921447A (en) * 1989-05-17 1990-05-01 Amp Incorporated Terminating a shield of a malleable coaxial cable
US6309251B1 (en) * 2000-06-01 2001-10-30 Antronix, Inc. Auto-seizing coaxial cable port for an electrical device
US7727020B2 (en) * 2008-09-05 2010-06-01 Delphi Technologies, Inc. Cable connector
US8585438B2 (en) 2012-03-21 2013-11-19 Antronix, Inc. Ground maintaining auto seizing coaxial cable connector

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117687B (de) * 1960-07-05 1961-11-23 Georg Spinner Dipl Ing Steckerarmatur fuer koaxiale Hochfrequenz-Kabel mit massivem Metallmantel
US3537065A (en) * 1967-01-12 1970-10-27 Jerrold Electronics Corp Multiferrule cable connector
US3448430A (en) * 1967-01-23 1969-06-03 Thomas & Betts Corp Ground connector
US3544705A (en) * 1968-11-18 1970-12-01 Jerrold Electronics Corp Expandable cable bushing
DE2331610C2 (de) * 1973-06-20 1987-03-26 Georg Dr.-Ing. 8152 Feldkirchen-Westerham Spinner Kabelstecker für vollisolierte Koaxialkabel
US3879102A (en) * 1973-12-10 1975-04-22 Gamco Ind Inc Entrance connector having a floating internal support sleeve

Also Published As

Publication number Publication date
JPS5953668B2 (ja) 1984-12-26
ES493189A0 (es) 1981-02-16
EP0022627A1 (de) 1981-01-21
ES8103494A1 (es) 1981-02-16
HK81586A (en) 1986-11-07
JPS5615573A (en) 1981-02-14
CA1132215A (en) 1982-09-21
BR8004230A (pt) 1981-01-21
DE3063872D1 (en) 1983-07-28
ATE3924T1 (de) 1983-07-15

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