EP0641490B1 - Koaxialkabel mit Anschlussstecker - Google Patents

Koaxialkabel mit Anschlussstecker Download PDF

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Publication number
EP0641490B1
EP0641490B1 EP92901307A EP92901307A EP0641490B1 EP 0641490 B1 EP0641490 B1 EP 0641490B1 EP 92901307 A EP92901307 A EP 92901307A EP 92901307 A EP92901307 A EP 92901307A EP 0641490 B1 EP0641490 B1 EP 0641490B1
Authority
EP
European Patent Office
Prior art keywords
cable
ferrule
around
conductor
jacket
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 - Lifetime
Application number
EP92901307A
Other languages
English (en)
French (fr)
Other versions
EP0641490A1 (de
Inventor
John William Anhalt
Wayne Arnold Zahlit
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries 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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of EP0641490A1 publication Critical patent/EP0641490A1/de
Application granted granted Critical
Publication of EP0641490B1 publication Critical patent/EP0641490B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency

Definitions

  • Miniature coaxial connectors are often constructed with machined inner and outer contacts. Since the contacts are of a relatively complex shape, machining them can be expensive. Sheet metal parts have not been widely used because it can be difficult to attach them to the cable so as to withstand moderate forces pulling the cable away from the connector.
  • U.S. Patent 4,891,022 shows a crimped ferrule around sheet metal parts. A connector which could be constructed at low cost, but which could be reliably held to a coaxial cable, would be of value.
  • a low-cost coaxial connector and cable assembly is provided, as well as the connector itself, wherein the connector is reliably secured to the cable.
  • the connector includes inner and outer contacts and an insulator between them.
  • the outer contact is formed of sheet metal rolled to a largely cylindrical shape.
  • a rear portion of the outer contact is mechanically and electrically connected to the cable by first crimping a ferrule around insulation of the cable, preferably around the outer insulation or jacket of the cable.
  • the outer conductor of the cable is placed around the crimped inner ferrule, the rear portion of the outer contact is placed around the cable outer conductor, and an outer ferrule is crimped around the sheet metal outer contact.
  • the connection provides a high holding force between the outer contact and the jacket of the cable to withstand substantial forces that tend to pull the cable out of the connector.
  • the ferrules are seamless, they can be constructed at low cost from ordinary seamless tubing. This allows the connector contacts, especially the outer contact, to be constructed of rolled sheet metal, which enables contact construction at low cost.
  • Fig. 1 is a sectional isometric view of a coaxial connector and cable assembly constructed in accordance with the present invention.
  • Fig. 2 is a side view of the assembly of Fig. 1, with the portion above the central line or axis being shown in section and the portion therebelow being shown in elevation.
  • Fig. 3 is a view taken on the line 3 - 3 of Fig. 2.
  • Fig. 4 is a sectional side view of the outer contact of the connector of Fig. 2.
  • Fig. 5 is a sectional side view of the insulator of the connector of Fig. 2.
  • Fig. 6 is a partial sectional side view of the inner contact of the connector of Fig. 2.
  • Fig. 7 is a sectional view taken on the line 7 - 7 of Fig. 5.
  • Fig. 8 is a view taken on the line 8 - 8 of Fig. 6.
  • Figs. 1 and 2 illustrate an assembly 10 of a coaxial connector 12 and a coaxial cable 14.
  • the cable includes an inner conductor 16, an inner insulation 20 that generally surrounds the inner conductor, an outer conductor 22 that generally surrounds the inner insulation 20, and an outer insulation or jacket 24 that generally surrounds the outer conductor 22.
  • a forward end portion 26 of the cable (with respect to forward direction F) has been stripped to remove a forward portion of the inner insulator 20 and outer conductor 22 a distance rearward of the extreme front end of the cable, and to remove a portion of the jacket 24 at a more rearward location (with respect to rearward direction R).
  • the connector 12 includes inner and outer contacts 30, 32 and a molded dielectric insulator 34 between them.
  • the inner contact 30 has a forward portion 36 with slots 38 to form a socket to receive a pin contact.
  • the inner conductor has a middle part 40 with tines 42 extending with an outward-rearward directional component to engage a shoulder 44 on the insulator, to retain the inner contact against rearward movement.
  • a rearward portion 46 of the inner contact is designed to be crimped around the inner conductor 16 of the cable to connect thereto.
  • the outer contact 32 has a forward portion 50 which prevents forward movement of the insulator, a middle portion 52 with tines 54 and bosses 56 for retaining the outer contact in a retaining wall which may be part of a connector housing, circuit board, etc.
  • the outer contact has a rearward portion 60 which is intended to be electrically connected to the outer conductor 22 of the cable, and which also mechanically holds to the cable to prevent the cable from being pulled rearwardly out of the connector.
  • Applicant uses inner and outer ferrules 70, 72 to securely hold the rear portion 60 of the outer contact in good electrical connection with the cable outer conductor 22 and in good mechanical connection with the jacket 24 of the cable.
  • the inner ferrule 70 is crimped around the cable jacket 24.
  • the outer conductor 22 of the cable is in the form of a braiding, and is wrapped backwardly so it includes a portion 74 that lies around the crimped inner ferrule 70.
  • the outer ferrule 72 is crimped around the rear portion 60 of the outer contact to deform it radially inwardly with respect to the axis 76 of the combination so as to both electrically and mechanically connect the outer contact to the cable outer conductor portion 74 and through it and the inner ferrule to the cable jacket 24.
  • the inner and outer contacts 30, 32 of sheet metal In order to construct the coaxial connector 12 at low cost, applicant forms the inner and outer contacts 30, 32 of sheet metal, with each contact formed by stamping the part out of sheet metal and deforming the sheet metal into largely cylindrical portions using progressive dies.
  • the resulting parts each has a seam at 80, 82 (Figs. 4 and 6) where the edges of the sheet metal part come together but are unjoined, so the seams are left in their original state in that the edges of the sheet at the seam are not welded or otherwise joined together.
  • the sheet metal parts can be constructed at low cost, they cannot perform all the functions of similar parts constructed of solid metal that has been machined to the desired shape. Specifically, the rear portion of the outer contact cannot itself, be reliably crimped around the cable. However, applicant can resort to the low cost crimping process for joining, by the use of the ferrules 70, 72.
  • the ferrules 70, 72 are formed of sections of continuous, or seamless tubes. Because of the simplicity of the tubes, they are available at low cost, and yet their construction enables them to be reliably crimped to devices. By crimping the inner ferrule 70 directly around the cable jacket 24, applicant provides a reliable mechanical connection to the cable jacket, which is the strongest part of the cable in tension load, and therefore the best part to attach to to prevent pullout of the cable from the connector. By the use of the outer ferrule 72 which can be reliably crimped, applicant is able to securely hold the outer contact rearward portion in mechanical and electrical engagement with the cable outer conductor 22, and through it to the inner ferrule 70 which is securely held to the cable jacket.
  • the result is a good electrical connection and a good mechanical connection to the strongest part of the cable to provide for high reliability.
  • Applicant first inserts the insulator 34 within the outer contact 32, until inwardly-bent tines 90 on the outer contact snap behind a shoulder 92 on the insulator. To connect the cable to the connector, applicant first trims the cable as shown and pushes the inner and outer ferrules over the cable for later crimping thereon. The exposed end of the inner conductor 16 is placed in a pocket at the rear portion 46 of the inner contact, and the inner contact is crimped around it.
  • the inner ferrule 70 is placed as shown in Fig. 2 immediately behind the forward end of the jacket, and is crimped in place.
  • the braided outer conductor 22 is then wrapped rearwardly around the inner ferrule.
  • the cable with the inner contact attached thereto, is then inserted into the rest of the connector.
  • the outer ferrule 72 is moved forwardly until it lies around the rearward portion of the outer contact, and the outer ferrule is then crimped in place.
  • the combination of connector and cable installed thereon can be inserted into the retaining wall 58 (Fig. 2) until the bosses 56 on the outer contact engage a rearward face of the retaining wall. Just prior to that time, tines 54 on the outer contact will have snapped behind a retention shoulder 96 on the retaining wall.
  • Applicant has manufactured contacts of the construction shown, where the outer contact 32 had a length of 0.830 inch (21.8 millimeters) and a rear portion of an outer diameter of 0.186 inch (4.71 mm), with the outer contact constructed of phosphor bronze 521 having a thickness of 0.120 inch (0.31 mm) and plated with nickel, gold, and tin-lead.
  • the inner contact 30 was constructed of the same material but with a sheet thickness of 0.008 inch (0.21 mm), and had an outer diameter along its forward portion of 0.062 inch (1.58 mm).
  • the insulator was molded of a thermoplastic, with cavities 102, 104 provided for ease of molding. The other dimensions are shown to scale.
  • the invention provides a coaxial connector which can be constructed at low cost and which can be reliably electrically and mechanically connected to a coaxial cable.
  • At least the outer contact of the connector is formed from sheet metal.
  • the rearward portion of the outer contact can be held to the cable outer connector in a crimping joint, by the use of an outer ferrule which lies around the outer contact rearward portion and which is crimped to press the outer contact tightly against the cable outer connector.
  • a good mechanical connection to the outer jacket of the cable is obtained by first crimping an inner ferrule to the jacket.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (3)

  1. Eine Koaxialkabelbaugruppe, die einen Koaxialstecker angeschlossen an einem Koaxialkabel (14) umfaßt, das einen Kabelinnenleiter (16), eine innere Kabelisolierung (20) um den Innenleiter, einen Kabelaußenleiter (22) als Geflecht um die innere Isolierung und einen isolierenden Kabelmantel um das Geflecht enthält, wobei der Mantel ein vorderes Ende hat, wobei ein Innenring (70) eng um den Kabelmantel liegt und der Mantel nach vome bei dem Innenring geschnitten ist, wobei das Geflecht einen offenliegenden Teilbereich hat, der nach hinten um den Innenring gestülpt ist; der Stecker enthält weiterhin einen Außenkontakt (32) mit einem hinteren Teilbereich (60), der um den offenliegenden Teilbereich des Geflechts gestülpt ist, und einen Außenring (72), der um den hinteren Teilbereich des Außenkontaktes gecrimpt ist, um den um das Geflecht gecrimpten hinteren Teilbereich des Außenkontaktes zu halten, dadurch gekennzeichnet,
    daß der Innenring (70) ein vorderes Ende hat, das im wesentlichen mit dem vorderen Ende des Mantels auf gleicher Höhe liegt, wobei der Innenring unabhängig vom Außenring in seinem gecrimpten Zustand um den Kabelmantel (24) liegt und gegen ihn drückt, um eine wirksame Übertragung von mechanischen Kräften zwischen dem Kabelmantel und dem hinteren Teilbereich des Außenleiters zu ermöglichen.
  2. Eine Methode zum Anschluß eines Koaxialkabels, das Kabelinnen- und -außenleiter (16, 22) hat, die jeweils in den inneren bzw. äußeren Isolierkörpern (20, 24) liegen, an einen Koaxialstecker (12), der Innen- und Außenkontakte (30, 32) und einen Isolierkörper (34) zwischen diesen hat, indem der Innenleiter an den Innen kontakt angeschlossen wird, indem ein Innenring (70) um den äußeren Isolierkörper (24) des Kabels angebracht wird, indem ein Teilbereich des Kabelaußenleiters um den Innenring gestülpt wird, indem der Innenring und der Teilbereich des Kabelaußenleiters, der dort liegt, in einen hinteren Teilbereich (60) des Außenkontakts eingeführt wird und indem ein Außenring (72) um einen Teil des hinteren Teilbereichs des Außenkontaktes, der um den Innenring liegt, gecrimpt wird, um das Teil des Außenkontaktes fest um den Außenleiter gepreßt zu halten, dadurch gekennzeichnet,
    daß der Arbeitsschritt des Anbringens des Innenrings das Crimpen um den einen Isolierkörper des Kabels einschließt, und daß der Arbeitsschritt des Crimpens eines Außenrings das Anbringen des Außenleiters und des Außenrings um den gecrimpten Innenring und den Kabelaußenleiter sowie das Crimpen des Außenrings einschließt.
  3. Die Methode nach Anspruch 2,
    wobei der Arbeitsschritt des Crimpens des Innenrings das Positionieren des vorderen Endes des Innenrings auf gleiche Höhe mit dem vorderen Ende des äußeren Isolierkörpers und danach das Crimpen des Innenrings um den äußeren Isolierkörper (24) des Kabels einschließt.
EP92901307A 1991-11-21 1991-11-21 Koaxialkabel mit Anschlussstecker Expired - Lifetime EP0641490B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1991/008673 WO1993010578A1 (en) 1991-11-21 1991-11-21 Coaxial connector

Publications (2)

Publication Number Publication Date
EP0641490A1 EP0641490A1 (de) 1995-03-08
EP0641490B1 true EP0641490B1 (de) 1996-01-03

Family

ID=22225977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92901307A Expired - Lifetime EP0641490B1 (de) 1991-11-21 1991-11-21 Koaxialkabel mit Anschlussstecker

Country Status (4)

Country Link
EP (1) EP0641490B1 (de)
KR (1) KR0139135B1 (de)
DE (1) DE69116174T2 (de)
WO (1) WO1993010578A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000286016A (ja) * 1999-04-01 2000-10-13 Harness Syst Tech Res Ltd シールドコネクタ
US6648683B2 (en) 2001-05-03 2003-11-18 Timothy L. Youtsey Quick connector for a coaxial cable
WO2011146911A1 (en) 2010-05-21 2011-11-24 Pct International, Inc. Connector with locking mechanism and associated systems and methods
US20120295464A1 (en) 2011-05-19 2012-11-22 Pct International, Inc. Coaxial connector
US9028276B2 (en) 2011-12-06 2015-05-12 Pct International, Inc. Coaxial cable continuity device
DE102015004485B4 (de) 2015-04-07 2016-12-15 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Verfahren zum Herstellen einer Steckverbinderanordnung
US10439302B2 (en) 2017-06-08 2019-10-08 Pct International, Inc. Connecting device for connecting and grounding coaxial cable connectors
EP3905443A1 (de) * 2020-04-30 2021-11-03 Rosenberger Hochfrequenztechnik GmbH & Co. KG Aussenleiterkontaktelement, steckverbinderanordnung und montageverfahren für eine steckverbinderanordnung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052980A3 (de) * 1980-11-26 1983-01-05 AMP INCORPORATED (a New Jersey corporation) Satz von Teilen für eine koaxiale Verbinderanordnung
DE3211008A1 (de) * 1982-03-25 1983-10-20 Wolfgang 2351 Trappenkamp Freitag Steckverbinder fuer koaxialkabel
US4613199A (en) * 1984-08-20 1986-09-23 Solitron Devices, Inc. Direct-crimp coaxial cable connector
ES1004786Y (es) * 1986-12-22 1989-04-01 Amp Incorporated Un conectador electrico.
JPH01177883U (de) * 1988-06-04 1989-12-19

Also Published As

Publication number Publication date
WO1993010578A1 (en) 1993-05-27
DE69116174T2 (de) 1996-08-22
DE69116174D1 (de) 1996-02-15
EP0641490A1 (de) 1995-03-08
KR0139135B1 (ko) 1998-06-15

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