EP0509324A2 - Assemblage de connecteur blindé d'une section ronde à une section plate - Google Patents

Assemblage de connecteur blindé d'une section ronde à une section plate Download PDF

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Publication number
EP0509324A2
EP0509324A2 EP92105661A EP92105661A EP0509324A2 EP 0509324 A2 EP0509324 A2 EP 0509324A2 EP 92105661 A EP92105661 A EP 92105661A EP 92105661 A EP92105661 A EP 92105661A EP 0509324 A2 EP0509324 A2 EP 0509324A2
Authority
EP
European Patent Office
Prior art keywords
cable
shield
ferrule
round
conductors
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
EP92105661A
Other languages
German (de)
English (en)
Other versions
EP0509324B1 (fr
EP0509324A3 (en
Inventor
Robert C. Brakenridge
Michael J. Miskin
Paul Murphy
Eric Stenstrom
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.)
Molex LLC
Original Assignee
Molex LLC
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 Molex LLC filed Critical Molex LLC
Publication of EP0509324A2 publication Critical patent/EP0509324A2/fr
Publication of EP0509324A3 publication Critical patent/EP0509324A3/en
Application granted granted Critical
Publication of EP0509324B1 publication Critical patent/EP0509324B1/fr
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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • 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
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices

Definitions

  • This invention generally relates to the art of electrical connectors and, particularly, to a system of providing a shielded connector assembly for connecting a round multiconductor cable to a complementary connector having a flat array of terminals.
  • the conductors may be provided for mass termination in a variety of forms.
  • round conductor ribbon cable for example, discrete wire conductors are disposed in a generally flat, parallel spaced relation to each other between insulating dielectric layers which surround and insulate the wires and form webs of insulation between them.
  • conductors may be provided in the form of a multi-cable assembly having a plurality of insulated conductors surrounded by an outer insulation jacket of a generally round cross-section. This latter type of cable assembly presents problems that are absent when dealing with round conductor ribbon cable.
  • the intervening webs serve to maintain the relative position and spacing of adjacent conductors.
  • the insulated conductors first must be unravelled from a bundle of wires and thereafter positioned in such a manner to permit mass termination with a plurality of terminals.
  • a connector system is a telecommunication system wherein a modular unit, such as a telephone, may be provided with an external connector of the receptacle type having a row of laterally spaced terminals which are connected electrically to internal circuitry of the unit. Therefore, electrical connections may be made to the internal circuitry through a flat cable terminated in a modular telecommunication plug which is inserted into the receptacle type connector on the modular unit.
  • the plug is provided with a row of laterally spaced terminals which electrically engage respective terminals in the receptacle type connector and are electrically connected to respective terminals in the flat cable.
  • the flat cables provide means for avoiding any confusion as to which of the conductors in the cable is connected electrically to which of the terminals laterally spaced in the row.
  • a round cable such as a coiled cord.
  • the round cable generally does not have the proper size or configuration for terminating in the modular plug suitable for insertion into the receptacle type connector on the unit.
  • the conductors in the round cable are not disposed in predetermined side-by-side positional relationship for electrical connection to respective terminals in the row thereof.
  • the present invention is directed to solving the problems of terminating a round cable in a flat terminal array connector in an extremely simple manner and eliminating the adaptor means of the prior art.
  • An object, therefore, of the invention is to provide a new and improved system of providing a shielded connector assembly for connecting a round cable to a connector having a flat array or row of terminals.
  • the system includes a method of producing the connector as well as the connector itself.
  • the round cable includes a plurality of insulated conductors within a cable shield and drain wire and surrounded by an outer insulating jacket.
  • the shielded connector assembly includes an insulating housing having receptacle means for receiving the insulated conductors in a flat array.
  • a plurality of terminals are mounted in the housing for termination to the received conductors and for mating with the terminals of a complementary connector.
  • a conductive connector shield means is mounted on and about a portion of the insulating housing, with a portion of the shield means extending into the receptacle means.
  • the invention contemplates a method of producing a shielded connector assembly with the above basic components, including the steps of stripping a portion of the insulating jacket from the multiconductor cable to expose the cable shield and the discrete insulated conductors.
  • a round conductive crimp ferrule is placed over the round multiconductor cable in engagement with the exposed cable shield and with the exposed insulated conductors projecting from an end of the crimp ferrule.
  • the exposed insulated conductors then are sorted and positioned in a flat array.
  • the round conductive crimp ferrule is crimped onto the round cable into a flat configuration for holding the sorted end positioned conductors in the flat array.
  • the cable then can be positioned in the insulating housing with the flat array of conductors in the receptacle means for termination to the terminals and with the crimped ferrule in engagement with the portion of the shield means extending into the receptacle means.
  • the shielded connector assembly is similar to that shown in the aforementioned 4,713,023 patent in that the connector assembly includes strain relief means for the cable at a location generally opposite the portion of the shield means which extends into the receptacle means.
  • the invention contemplates providing access means in the conductive crimp ferrule to accommodate the strain relief means and still maintain the crimp ferrule in engagement with the portion of the shield means. This is accomplished by cutting the round crimp ferrule at an angle to provide a longer one side thereof than another side, the longer side being engageable with the shield means and the shorter side providing access to the cable by the strain relief means.
  • Other embodiments of a crimp ferrule providing these functions are disclosed herein.
  • the invention is embodied in a shielded electrical connector assembly, generally designated 14, which is in the form of a modular shielded plug connector assembly, such as might be used in the telecommunications industry.
  • the plug assembly is shown generally to include a plug housing, generally designated 16, which mounts a grounding shield in the form of a unitary stamped and formed metallic shell, generally designated 18, around the rear area of housing 16, and a plurality of insulation piercing terminals 20 within the housing.
  • terminals 20 are adapted for termination to discrete insulated conductors 22 of a multiconductor electrical cable 24 which is shown in Figure 1 to be stripped to expose the ends of insulated conductors 22 as well as a conductive metallic foil 26 which is shown turned back on itself over the outside surface of an insulating jacket 28 of the cable.
  • Foil 26 acts as a shield for conductors 22 and insulating jacket 28 surrounds the foil.
  • the foil may also comprise a braid or other ground system for the multi-conductor cable and may also include a drain wire.
  • Figure 1 shows a round crimp ferrule 30 of conductive material, such as metal or the like, which is to be crimped into a flat configuration about multiconductor cable 24, in conductive engagement with foil 26 and exposing conductors 22 for termination with terminals 20.
  • conductive material such as metal or the like
  • FIG. 2 shows shielded plug connector assembly 14 in assembled condition, with grounding shield 18 around the rear of housing 16, and with multiconductor cable 24 projecting from the rear of the assembly.
  • housing 16 of the connector assembly has a pair of latch arms 32 which extend laterally outwardly and rearwardly from opposite sides of the plug connector assembly for latching the plug connector assembly in mating engagement within a complementary receptacle connector assembly (not shown) as disclosed in the 4,713,023 patent described above and incorporated herein by reference.
  • housing 16, including latch arms 32 is a unitary structure of dielectric material, such as molded plastic or the like.
  • Figures 3 and 4 show that crimp ferrule 30 is generally cylindrical to define a round through passage 34 sized to receive round multiconductor cable 24.
  • crimp ferrule 30 is cut at one end, as at 36, along an angle so that a bottom wall section 38 of the ferrule is longer than a top wall section 40.
  • the angled cut of the ferrule provides a clearance, as indicated by double-headed arrow 42, in a vertically downward direction to define access means from the top of the ferrule to the multiconductor cable extending through the ferrule.
  • FIG. 5 shows plug connector assembly 14 in completely assembled condition. It can be seen that crimp ferrule 30 has been crimped into a flat configuration onto the stripped end of multiconductor cable 24 about the grounding foil 26, with conductors 22 projecting forwarding from an end of the ferrule and terminated to terminals 20 which have been forced downwardly in the direction of arrow "B" to pierce the insulation of the conductors and terminate the cores of the conductors. It also can be seen that housing 16 has strain relief sections 44 and 46 to which access is provided by openings 48 and 50, respectively, in shield 18 (also see Fig. 2). Again, reference can be made to the 4,713,023 patent for details of this arrangement. Suffice it to say, strain relief section 44 provides strain relief laterally across the plug assembly for all of conductors 22, and strain relief section 46 provides strain relief onto insulating jacket 28 of multiconductor cable 24.
  • housing 16 of plug assembly 14 has receptacle means in the form of an interior cavity 52 for receiving the cable, the receptacle means narrowing in a forward area 52a whereby conductors 22 are in a flat array for termination to the row of terminals 20 described in relation to Figure 1.
  • shield 18 has a portion 54 bent back into receptacle means 52 along the bottom wall thereof. Shield portion 54 can be seen to be in vertical alignment with strain relief section 46. Therefore, with crimp ferrule 30 cut at an angle as described in relation to Figure 3, the clearance 42 (Fig.
  • the system of the invention contemplates using grounding crimp ferrule 30 as a means for positioning conductors 22 of round cable 28 in a flat array for termination to the row of terminals 20.
  • crimp ferrule 30 initially is provided in a cylindrical configuration with its round through passage 34 sized to receive round cable 24.
  • the crimp ferrule is flattened considerably, after crimping, to maintain conductors 22 in a flat array for termination to the row of terminals 20.
  • the invention contemplates a method of assembling connector 16, including the steps of stripping a portion of insulating jacket 28 (Fig. 1) from multiconductor cable 24 to expose the cable shield or foil 26 and the insulated conductors 22.
  • Round crimp ferrule 30 then is placed about the round cable, with the vertically cut end of the ferrule generally in line with the stripped end of the insulating jacket of the cable, as seen in Figure 5.
  • Conductors 22 then are sorted in their proper circuit order and laid out in a flat array, being careful not to cross one conductor over another.
  • Crimp ferrule 30 then is crimped onto the cable by a generally flat crimping tool to hold the conductors in their sorted and flat array.
  • this can be accomplished by placing the subassembly of the ferrule and cable, with the sorted conductors, in an anvil of an application tool, making sure that the top wall section 40 of the ferrule faces downwardly from the flat array of conductors.
  • the crimped subassembly then can be positioned within interior cavity 52, and formed area 52a of plug connector housing 16, as described above, with the flat array of conductors in position for termination with terminals 20 and with the crimp ferrule 30 in engagement with shield portion 54.
  • Appropriate application tooling then can be used to drive insulation piercing terminals 20 into conductors 22 and to force strain relief sections 44 and 46 of the housing into engagement with the conductors and the insulating jacket of the cable.
  • Figure 6 simply shows one type of application tooling for crimping crimp ferrule 30 onto multiconductor cable 24.
  • a tool may include a mounting base 60 for positioning on a support surface 62.
  • a cable guide 64, a crimp anvil 66 and a cut off anvil 68 are fixed to the top of mounting base 60.
  • Cable guide 64 has a trough 70 for positioning multiconductor cable 24.
  • Crimp anvil 66 has a generally flat anvil surface 72 for engaging the bottom of crimp ferrule 30.
  • Cut off anvil 68 has a cutting surface 74 for trimming ends 22a from conductors 22.
  • the insulating jacket 28 of cable 24 is stripped slightly greater than the length of the conductors 22 to be positioned within the plug assembly housing so that excess ends 22a can be removed to provide a consistent length of the exposed conductors to be positioned within the plug housing.
  • the application tooling may include a press ram 76 having a tool holder 78 for mounting a crimp punch 80 and a cutoff blade 82.
  • the crimp punch has a distal end 84 shaped and sized to contain the ferrule 30 and to control its width for crimping onto the bottom of crimp ferrule 30, opposite flat surface 72 of crimp anvil 66 to flatten the crimp ferrule and maintain the flat sorted array of the conductors.
  • Cut off blade 82 has a cutting edge 86 for cutting-off the ends 22a of conductors 22.
  • Figures 7-12 show alternate forms of crimp ferrules for carrying out the concepts of the invention.
  • the ferrule has a generally round through passage, similar to through passage 34 of crimp ferrule 30, for positioning over round cable 24 in engagement with its grounding means, such as foil 26.
  • Figures 7 and 8 show a round crimp ferrule 30' having a through passage 34'.
  • the crimp ferrule is generally cylindrical except for a lower wall section 38' which projects outwardly from the main portion of the ferrule.
  • a clearance is provided, as indicated by double-headed arrow "D", sufficient for strain relief section 46 (Fig. 5) to engage the insulating jacket of the cable, while projecting wall section 38' of the crimp ferrule is maintained in engagement with shield portion 54.
  • Figures 9 and 10 show a further embodiment of a crimp ferrule 30'' which is substantially cylindrical but which is provided with a cutout 88 in the top of the ferrule to provide access through the cutout by strain relief section 46 of the plug connector housing, while the bottom of cylindrical crimp ferrule 30'' is maintained in engagement with shield portion 54.
  • Figures 11 and 12 show a further modification wherein a crimp ferrule 30''' is generally cylindrical and is provided with a window 90 in the top thereof.
  • the window provides access means through which strain relief section 46 can be moved into engagement with the insulating jacket of the cable, while the bottom of crimp ferrule 30''' is maintained in grounding engagement with shield portion 54.
EP92105661A 1991-04-15 1992-04-02 Assemblage de connecteur blindé d'une section ronde à une section plate Expired - Lifetime EP0509324B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68607091A 1991-04-15 1991-04-15
US686070 1991-04-15

Publications (3)

Publication Number Publication Date
EP0509324A2 true EP0509324A2 (fr) 1992-10-21
EP0509324A3 EP0509324A3 (en) 1993-05-05
EP0509324B1 EP0509324B1 (fr) 1997-07-02

Family

ID=24754780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105661A Expired - Lifetime EP0509324B1 (fr) 1991-04-15 1992-04-02 Assemblage de connecteur blindé d'une section ronde à une section plate

Country Status (4)

Country Link
EP (1) EP0509324B1 (fr)
JP (1) JPH0760725B2 (fr)
KR (1) KR950012472B1 (fr)
DE (1) DE69220605T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109610717A (zh) * 2018-12-29 2019-04-12 贵州建工安顺建筑工程有限公司 一种w字型吊顶边龙骨的安装方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398780A (en) * 1979-07-03 1983-08-16 Amp Incorporated Shielded electrical connector
US4713023A (en) * 1987-01-30 1987-12-15 Molex Incorporated Electrical connector and method of assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398780A (en) * 1979-07-03 1983-08-16 Amp Incorporated Shielded electrical connector
US4713023A (en) * 1987-01-30 1987-12-15 Molex Incorporated Electrical connector and method of assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109610717A (zh) * 2018-12-29 2019-04-12 贵州建工安顺建筑工程有限公司 一种w字型吊顶边龙骨的安装方法

Also Published As

Publication number Publication date
KR950012472B1 (ko) 1995-10-18
EP0509324B1 (fr) 1997-07-02
JPH0760725B2 (ja) 1995-06-28
KR920020787A (ko) 1992-11-21
EP0509324A3 (en) 1993-05-05
DE69220605D1 (de) 1997-08-07
JPH05159845A (ja) 1993-06-25
DE69220605T2 (de) 1998-02-12

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