EP0124300A2 - Connecteur pour un câble coaxial - Google Patents

Connecteur pour un câble coaxial Download PDF

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Publication number
EP0124300A2
EP0124300A2 EP84302305A EP84302305A EP0124300A2 EP 0124300 A2 EP0124300 A2 EP 0124300A2 EP 84302305 A EP84302305 A EP 84302305A EP 84302305 A EP84302305 A EP 84302305A EP 0124300 A2 EP0124300 A2 EP 0124300A2
Authority
EP
European Patent Office
Prior art keywords
conductor
cable
contact
plug
electrical connector
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.)
Withdrawn
Application number
EP84302305A
Other languages
German (de)
English (en)
Other versions
EP0124300A3 (fr
Inventor
Joseph P. Slachetka
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.)
ABB Installation Products Inc
Original Assignee
Thomas and Betts Corp
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 Thomas and Betts Corp filed Critical Thomas and Betts Corp
Publication of EP0124300A2 publication Critical patent/EP0124300A2/fr
Publication of EP0124300A3 publication Critical patent/EP0124300A3/fr
Withdrawn legal-status Critical Current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 and more particularly to a connector adapted for use with coaxial cables and which may be readily installed in the field.
  • a connector that is readily field installable by ordinary electrician's tools and that provides effective connection to the relatively soft inner cable conductor is highly desirable, in particular, where office layouts and planning dictate changes in the location of the office equipment.
  • the electrical connector comprises a body having a generally central aperture for receipt therein of an exposed conductor of an electrical cable.
  • a plug is included having means cooperatively coupling the body, the coupling means providing for relative movement between the body and the plug during coupling.
  • the plug has a generally central aperture in substantial alignment with the body aperture.
  • An elongate conductive contact is provided, the contact being disposed in the plug aperture and having a termination end and a conductor receiving end.
  • the conductor receiving end faces the body and has elastically deflectable walls defining an opening for receipt of the cable conductor therein.
  • the walls are movable from a first normally open position wherein the opening is of expanse sufficient to freely receive the cable conductor therein to a second closed position wherein the opening is less than the cross-sectional extent of the cable conductor.
  • means is supported by the body for engaging the conductor receiving end of the contact and moving the deflectable walls from the first position to the second position during the coupling of the plug and body, such that upon completion of the coupling, electrical connection may be established between the cable conductor and the contact.
  • the connector is particularly adapted for connection use with a coaxial cable of the type having an inner conductor and an outer conductor spaced by a layer of insulation and a jacket of insulation about the outer conductor.
  • a plug subassembly and a body subassembly threadably coact to form the connector.
  • the plug subassembly houses the contact with the deflectably movable walls and the body subassembly includes a camming element having a cam surface thereon adapted to engage the deflectable contact walls during threadable assembly of the connector to thereby cause engagement of such contact walls with the coaxial cable inner conductor that passes through the body subassembly.
  • a strain relief member is included for attachment to the coaxial cable insulation jacket and for holding the cable and thereby the inner conductor in a fixed position relative to the connector body subassembly.
  • a coaxial connector terminates a flat coaxial cable 12 for direct connection to a cathode ray tube 14 which may be part of a computer terminal or other data transmission equipment.
  • the flat coaxial cable 12 in preferably of the type having a generally low profile (less than 0.100 inch) for installation on a floor surface beneath carpet tiles 16 or similar floor covering.
  • the data cable 12 comprises an inner conductor 18 encircled by a layer of insulation 20, a drain wire 22 and an electrically conductive outer sheath 24 surrounding the drain wire 22 and the layer of insulation 20, the drain wire being in electrical contact with the conductive sheath 24.
  • the inner conductor 18 is typically formed of copper and has a diameter of about 28-30 AWG.
  • An outer jacket 26 of insulation having a generally trapezoidal configuration encases the conductive outer sheath 24. Other cross-sectional configurations of the jacket 26 may also be used.
  • Such a cable 12 is more fully described in our U.S. Patent No. 4404425 entitled "Cable Assembly for Undercarpet Signal Transmission", issued on 13th September, 1983.
  • FIG. 3 the components of the electrical connector 10 are shown, respectively, in exploded and assembled form.
  • the upper components shown in Figure 3 are joined into a separate plug subassembly, generally designated as 28, and the lower components, exclusive of the data cable 12, are joined into a separate body subassembly, generally indicated as 30.
  • the plug subassembly 28 comprises an elongate, generally cylindrical conductive plug 32, an insulator 34, an electrically conductive contact 36 and a threaded coupling 38.
  • the plug 32 is a conventional part, having interior threads (not shown) at end 32a for connection to an external device, such as a cathode ray tube, and is commercially available, for example, as TNC-79525 from Amphenol, Oak Brook, Illinois. Other suitable plugs of the bayonet type, for example, Amphenol part BNC-31-4541, may also be used.
  • the contact 36 is elongate, of generally cylindrical configuration, and is preferably made of a suitably conductive material, such as brass, and preferably plated with silver.
  • the contact 36 has a termination end 36a which, as depicted, may comprise a pin-type member or a suitable socket-type member, not shown.
  • the contact 36 includes a conductor receiving end 36b which comprises a pair of axially extending, transversely spaced walls 40 and 42 defining therebetween a slotted opening 44.
  • Each of the walls is supported in cantilevered fashion at the base 44a of the opening and is elastically deflectable toward the opposing wall at the free and unsupported end thereof.
  • the opening 44 is formed to have lateral extent slightly greater (about several thousandths of an inch) than the diameter of the cable inner conductor 18 to freely receive such conductor 18 therein as will be described.
  • the walls 40 and 42 are elastically movable upon application of a radial or transverse force thereto effectively reducing the opening to a transverse extent less than the diameter of the inner conductor 18.
  • the contact 36 resides in the central aperture 34a of the insulator 34, the insulator 34 being seated in the central aperture 38a of the threaded coupling 38 between the contact 36 and inner wall of the coupling 38.
  • the coupling 38 has exterior threads 38b which are threadably connected to interior threads 32b of the plug 32 to thereby form the plug subassembly 28 as illustrated.
  • the coupling 38 also has exterior threads 38c for coupling to the body subassembly 30, as will be described.
  • the free ends of deflectable contact walls 40 and 42 extend axially beyond the end transverse surface 28a of the plug assembly to facilitate connection to the cable inner conductor, as will be described.
  • projecting ends 40a and 42a of the deflectable walls are preferably tapered toward the mouth of the opening 44, the outer peripheral surface of such tapered ends 40a and 42a defining a generally frustroconical surface with the smaller diameter of such frustroconical surface being at the distal ends of the walls.
  • the body subassembly 30 comprises a conductive body 46, an insulative bushing 48, a cable strain relief inclusive of a cable support 50 and a cable clamp 52. While the body 46 and bushing 48 are generally cylindrical, the cable support 50 has a generally trapezoidal cross-section, as depicted in Figure 5, to accommodate the flat cable 12.
  • the cable support 50 is preferably formed from a unitary strip of spring-like metal, such as phosphor bronze, folded at one of the marginal edges 50a and left slightly open at the other marginal edge 50b to allow a snap-on type connection to the body 46, as will be detailed.
  • the cable support 50 At one end of the cable support 50, there are provided upper and lower protrusions 50c and 50d for attachment to the knob portion 46a of the body 46.
  • Marginal cutouts 50e and 50f are formed in the cable support 50, such cutouts being laterally spaced less than the width of the cable 12 such that upon insertion of the cable the marginal edges of the cable jacket are exposed at the cutouts 50e and 50f.
  • the cable clamp 52 has projecting legs 52a and 52b adapted to be inserted into the cutouts 50e and 50f to engage the cable jacket and to provide compression to the cable support 50.
  • the body 46 has a protruding knob portion 46a and a nut portion 46b having internal threads 46c.
  • the knob portion 46a and the nut portion 46b are joined for relative rotative movement.
  • the data cable Prior to being coupled to the body subassembly 30 and ultimately to the complete connector 10, the data cable is prepared as shown in Figure 3. A portion of the outer insulation jacket 26 and the conductive sheath 24 (not shown) are removed to thereby expose the drain wire 22 and the insulated inner conductor 18. The insulation layer 20 is removed from the end portion of the inner conductor 18, the length of the insulation from the cable jacket 26 being slightly longer than the exposed length of the drain wire 22.
  • the cable support 50 is initially slid onto the cable jacket 26. The inner conductor 18, insulation layer 20 and the drain wire 22 are fed into an inner aperture 46d of the body 46.
  • the insulative bushing 48 is provided with an inner aperture 48a that is slightly greater than the outer diameter of the insulation layer 20.
  • the inner conductor 18 and the insulation layer 20 thereon pass through the bushing aperture 48c while the drain wire 22 lies exteriorly of the bushing 48.
  • the drain wire 22 is wedged between the outer bushing wall and the inner wall of the body 46.
  • the bushing 48 is suitably seated as a bushing flange 48b abuts against an interior portion of the knob portion 46a. As the drain wire 22 is in intimate contact with the conductive body 46, electrical connection is thereby established between the body 46, the drain wire 22 and the conductive sheath 24 of the cable 12.
  • the cable support 50 is then slid along the cable 12 toward the body 46 until the knob portion 46a is snapped into the cable support protrusions 50c and 50d.
  • the cable clamp 52 is then attached thereby establishing the cable strain relief and holding the cable and its conductors in a fixed position relative to the body 46.
  • the bushing 48 preferably formed of a suitable plastic, serves as a camming element in providing the electrical connection between the cable 12 and the connector 10.
  • a cam surface 48c is provided at the end of the bushing 48 adjacent the flange 48b.
  • the cam surface 48c is generally frustroconical in configuration and corresponds to the tapered, frustroconical shape of the projecting contact walls 40a and 42a.
  • the cam surface 48c is radially spaced from and is in circumscribing position about the inner conductor 18.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
EP84302305A 1983-04-05 1984-04-04 Connecteur pour un câble coaxial Withdrawn EP0124300A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48235283A 1983-04-05 1983-04-05
US482352 1983-04-05

Publications (2)

Publication Number Publication Date
EP0124300A2 true EP0124300A2 (fr) 1984-11-07
EP0124300A3 EP0124300A3 (fr) 1985-05-08

Family

ID=23915704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84302305A Withdrawn EP0124300A3 (fr) 1983-04-05 1984-04-04 Connecteur pour un câble coaxial

Country Status (3)

Country Link
EP (1) EP0124300A3 (fr)
JP (1) JPS607083A (fr)
AU (1) AU2619084A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198218A2 (fr) * 1985-04-09 1986-10-22 Allied Corporation Terminaison pour câble coaxial
CN101853991A (zh) * 2010-05-11 2010-10-06 上海图越电子有限公司 高精密射频同轴连接器
WO2011031673A2 (fr) * 2009-09-09 2011-03-17 John Mezzalingua Associates, Inc. Connecteur sécurisable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2140763A5 (fr) * 1971-06-07 1973-01-19 Gonzalez Michel
US3847463A (en) * 1973-04-11 1974-11-12 Gilbert Engineering Co Cable connector apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2140763A5 (fr) * 1971-06-07 1973-01-19 Gonzalez Michel
US3847463A (en) * 1973-04-11 1974-11-12 Gilbert Engineering Co Cable connector apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198218A2 (fr) * 1985-04-09 1986-10-22 Allied Corporation Terminaison pour câble coaxial
EP0198218A3 (fr) * 1985-04-09 1988-10-05 Allied Corporation Terminaison pour câble coaxial
WO2011031673A2 (fr) * 2009-09-09 2011-03-17 John Mezzalingua Associates, Inc. Connecteur sécurisable
WO2011031673A3 (fr) * 2009-09-09 2011-05-19 John Mezzalingua Associates, Inc. Connecteur sécurisable
US8246392B2 (en) 2009-09-09 2012-08-21 John Mezzalingua Associates, Inc. Securable connector
CN101853991A (zh) * 2010-05-11 2010-10-06 上海图越电子有限公司 高精密射频同轴连接器
CN101853991B (zh) * 2010-05-11 2012-05-23 上海图越电子有限公司 高精密射频同轴连接器

Also Published As

Publication number Publication date
AU2619084A (en) 1984-10-11
JPS607083A (ja) 1985-01-14
EP0124300A3 (fr) 1985-05-08

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Inventor name: SLACHETKA, JOSEPH P.