EP0753902A2 - Führungsvorrichtung zur Erleichterung des Anschlusses von Mehrfachleitern an einem elektronischen Bauteil - Google Patents

Führungsvorrichtung zur Erleichterung des Anschlusses von Mehrfachleitern an einem elektronischen Bauteil Download PDF

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Publication number
EP0753902A2
EP0753902A2 EP96304841A EP96304841A EP0753902A2 EP 0753902 A2 EP0753902 A2 EP 0753902A2 EP 96304841 A EP96304841 A EP 96304841A EP 96304841 A EP96304841 A EP 96304841A EP 0753902 A2 EP0753902 A2 EP 0753902A2
Authority
EP
European Patent Office
Prior art keywords
electronic component
cable
conductors
termination
guide assembly
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Withdrawn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
EP96304841A
Other languages
English (en)
French (fr)
Other versions
EP0753902A3 (de
Inventor
John Voltz
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.)
WL Gore and Associates Inc
Original Assignee
WL Gore and Associates 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 WL Gore and Associates Inc filed Critical WL Gore and Associates Inc
Publication of EP0753902A2 publication Critical patent/EP0753902A2/de
Publication of EP0753902A3 publication Critical patent/EP0753902A3/de
Withdrawn legal-status Critical Current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
    • 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
    • H01R13/65912—Specific features or arrangements of connection of shield to conductive members for shielded multiconductor 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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6275—Latching arms not integral with the housing
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6658—Structural association with built-in electrical component with built-in electronic circuit on printed circuit board

Definitions

  • This invention generally relates to electrical cables. More particularly, the present invention relates to an apparatus for facilitating the termination of a multiple conductor cable to an electronic component, and for providing strain relief during the assembly of such an electrical cable.
  • Coaxial cables for data transmission are well known.
  • One common data transmission cable is a coaxial cable.
  • Coaxial cables generally comprise an electrically conductive wire surrounded by an insulator. The wire and insulator are surrounded by a shield, and the wire, insulator and shield are surrounded by a jacket.
  • Coaxial cable assemblies may comprise multiple individual conductors that are individually insulated and surrounded by a common shield. Coaxial cables can transmit at much higher frequencies than a standard twisted pair wire and, therefore, have a much greater transmission capacity. Coaxial cables provide data transmission at raw data rates of up to 10 Mbit/sec (Mbps). In addition, coaxial cables have very little distortion, cross-talk or signal loss, and therefore, provide a very reliable medium for data transmission.
  • a cable assembly may be provided which is comprised of multiple parallel pair component cables.
  • Quad cable Another cable particularly effective in high speed data transmission applications is a quad cable.
  • Quad cable designs provide four separately insulated conductors arranged about a central axis at equal circumferential intervals. The insulated conductors are wrapped in a shield.
  • quad cables For moderate data transmission speeds (i.e. less than 200 Mbit/sec), quad cables have been used by transmitting two differential pairs, each pair comprising two conductors, with each conductor oriented generally 180° apart from the other in the pair.
  • a cable assembly may be comprised of multiple quad cable components.
  • the foregoing cables are terminated to an electronic component, such as a printed circuit board, for example. It is very common to have a plurality of individual conductors present at the point of termination.
  • a main quad type cable assembly comprising ten component quad cables, a total of forty conductors must be correctly and precisely terminated to an electronic component, such as the printed circuit board.
  • the termination of such a cable assembly to the electronic component has been accomplished manually, which has been a tedious, time consuming, and therefore costly manufacturing process.
  • An object of the present invention is to provide an apparatus for facilitating the automatic termination of a cable having multiple conductor components which all must be correctly and precisely terminated to an electronic component, such as a printed circuit board.
  • an apparatus for facilitating the termination of an electrical cable to an electronic component wherein the electrical cable is comprised of a plurality of conductors comprising:
  • the present invention provides a wire guide assembly for facilitating the termination of a multiple conductor cable to an electronic component by permitting an automated process to be accomplished for said termination.
  • the present invention is a wire guide assembly for facilitating the termination of a multiple conductor cable to an electronic component.
  • multiple conductor cable is any cable assembly comprising multiple conductors arranged within a common shield.
  • FIG. 15 For purposes of illustration only, and without intending to limit the scope of the specification, examples of multiple conductor cables which may be terminated by employing the guide assembly of the present invention are illustrated in Figures 15 and 16.
  • a multiple differential pair cable is illustrated at 10 having an even numbered plurality of electrical conductors 12, 14, 16, 18.
  • the electrical conductors form a plurality of differential pairs of electrical conductors with conductors 12 and 14 forming a first differential pair and conductors 16 and 18 forming a second differential pair.
  • the conductors 12-18 comprise multiple strand wires, but this present invention functions equally well using single strand wires.
  • the cable differs from a pair of twin ax cables in that all of the conductors are all surrounded by a single shield 20 and are located within a single jacket 22.
  • the conductors 12, 14, 16, 18 are spaced apart in generally equidistant circumferential intervals and extend substantially parallel or helical with respect to each other over the length of the cable.
  • the overall geometric shape of the cable is round.
  • the conductors of each differential pair are generally spaced 180° apart from each other, which in a quad configuration, as shown, places the four conductors circumferentially spaced apart in approximately 90° intervals.
  • Each of the conductors is electrically insulated from each other and from the surrounding shield 20. This insulation can be accomplished by an independent insulation material separating the conductors from each other and another independent insulation material separating the conductors from the shield, or through the use of a single insulation layer that accomplishes both of these functions. As illustrated in Figure 15, each of the conductors 12, 14, 16, 18 is surrounded by its own insulation layer 24, 26, 28 and 30, respectively.
  • a center filler 32 may be provided to assist in maintaining the relative position between the conductors and shield within the cable 10.
  • the center filler 32 may comprise a dielectric material that will not disrupt the electric properties within the cable.
  • the center filler 36 may be circular in cross-section and is smaller in diameter than the insulating dielectrics 24-30 so that adjacent dielectrics contact each other.
  • the center filler 36 may be constructed as a solid tube of material, a hollow tube, or a material with a cellular structure to reduce dielectric constant.
  • the center filler 32 may be constructed of a foamed fluoropolymer, as that used for the insulating dielectrics, or an expanded polytetrafluoroethylene (ePTFE).
  • the conductors 12-18 may be constructed of any electrically conductive material, such as copper, copper alloys, metal plated copper, aluminum or steel.
  • the insulation 24-30 may be formed from a generally crush resistant material to avoid significant changes in insulative properties of the dielectric upon the application of tensions and forces associated with handling the cable.
  • the insulation may be constructed of a material that has a low dielectric constant. Suitable insulation materials include foamed polymers selected from the group consisting essentially of fluorinated ethylene propylene copolymer (FEP), perfluoroalkoxy copolymer (PFA), ethylene tetrafluoroethylene copolymer (ETFE), polyethylene, polypropylene, polyolefin copolymers, and polyallomers.
  • FEP fluorinated ethylene propylene copolymer
  • PFA perfluoroalkoxy copolymer
  • ETFE ethylene tetrafluoroethylene copolymer
  • polyethylene polypropylene
  • polyolefin copolymers polyallomers.
  • the outer jacket 22 that is circumferentially disposed about the shield 20, the insulating dielectrics 24-30 and the conductors 12-18, provides a number of useful properties.
  • the jacket is useful for electrically insulating the shield 20, preventing contamination of the shield 20 and inhibiting the introduction of high dielectric contaminants, such as water, within the cable.
  • the jacket 22 can also serve as a surface for marking or coding the cable 10.
  • the jacket 24 may be constructed of polyvinylchloride (PVC), PVC compounds, FEP, or similar polymers and is generally between about 0.010 and 0.030 inches thick.
  • the jacket 22 may be extruded over or otherwise positioned around the shield 20.
  • the shield 20 may be constructed of a plurality of interwoven, electrically conductive strands that surround the conductors 12-18 and the insulating dielectrics 24-30.
  • the shield 20 prevents unwanted electromagnetic interference from causing significant signal losses and limits the amount of energy radiated from the cable 10.
  • Figure 16 illustrates a multiple conductor cable 34 which comprises a plurality of quad cable components 10.
  • this cable comprises ten quad cable components thereby creating forty individual conductors which must all be precisely, effectively and efficiently terminated to an electronic component, such as a printed circuit board, for example.
  • the quad cable components 10 may be arranged around a common center 36 and commonly shielded by a braided shield 38 and a jacket 40.
  • FIG. 1 is an exploded perspective view of an electrical cable connector assembly, indicated generally at 42, which incorporates a guide assembly 60.
  • the guide assembly 60 facilitates the termination of a multiple conductor cable to an electrical component.
  • the electrical cable connector assembly includes a multiple conductor cable 34, first and second housing parts 44 and 46, an electronic component, and the guide assembly 60.
  • the electronic component is illustrated as an electrically connected multi-pin assembly 48 and a printed circuit board 50, as should be understood, the guide assembly 60 may be employed to facilitate the termination of a multiple conductor cable to any electronic component, such as but not limited to an individual multi-pin assembly, an individual printed circuit board, or an integral multi-pin assembly and printed circuit board, for example.
  • Retention clips 52 and fasteners 54 may be employed to fixedly assemble the connector assembly 42 as an integral connector.
  • the printed circuit board 50 includes conductive traces 62A and 62B. Individual conductors of the multiple conductor cable 34 are electrically connected to the conductive traces 62A by any suitable method, such as by soldering, for example. Additionally, the individual pins 64 of the multi-pin assembly 48 are terminated to respective conductive traces 62B. As should be understood, conductive traces 62A and 62B may be connected using multiple layers and vias to achieve a predetermined wiring scheme.
  • the guide assembly 60 is best understood by reference to Figures 2-5.
  • the guide assembly 60 is defined by a main body which includes a front portion 63, a rear portion 64, a bottom portion 66 and a top portion 68.
  • Slot portions 70 define individual compartments which receive the conductors of the multiple conductor cable 34.
  • the slot portions 70 are dimensioned to be aligned with the conductive traces 62A in an assembled electrical connector assembly 42.
  • a plurality of apertures 72 are formed through the guide assembly 60 from the front portion 63 to the rear portion 64. Each aperture is centered relative to an individual slot portion 70, and each aperture receives a respective individual conductor, as will be explained in further detail hereinafter.
  • the guide assembly 60 may include a plurality of fingers 74 which define the slot portions 70.
  • the guide assembly 60 may also include a means for fixedly locating or removably mounting the guide assembly to the electronic component.
  • projections 76 are formed on the main body of the guide assembly 60. These projections 76 interact with respective detents which are formed on the printed circuit board.
  • the guide assembly 60 may be formed from any suitable engineering grade thermoplastic material, such as but not limited to, polyester, polyphenylene sulfide, polyamide, acetyl, acetylene-butadiene-styrene terpolymer, polytetrafluoroethylene, polyvinyl chloride, polypropylene, polyethylene, polyethylene terephthalate (PET), polybutyline terephthalate (PBT), or liquid crystal polymer (LCP).
  • suitable engineering grade thermoplastic material such as but not limited to, polyester, polyphenylene sulfide, polyamide, acetyl, acetylene-butadiene-styrene terpolymer, polytetrafluoroethylene, polyvinyl chloride, polypropylene, polyethylene, polyethylene terephthalate (PET), polybutyline terephthalate (PBT), or liquid crystal polymer (LCP).
  • the present invention facilitates the termination of a multiple conductor cable, such as the cable 34 which is illustrated in Figure 16, to an electronic component, such as the multi-pin assembly 48 and/or the printed circuit board 50.
  • a multiple conductor cable such as the cable 34 which is illustrated in Figure 16
  • an electronic component such as the multi-pin assembly 48 and/or the printed circuit board 50.
  • the cable 34 is terminated by first loading the cable into a carrier assembly 80, as illustrated in Figure 6.
  • the carrier assembly 80 supports the cable 34 which is comprised of a plurality of multiple differential pair assemblies 10, each having four electrical conductors 12, 14, 16 and 18.
  • the multiple differential pair assemblies project from a first portion of the cable 34, at equal interval spacings, e.g. 0.100 inches.
  • the evenly spaced multiple differential pair assemblies are stripped and prepared, thereby exposing the four electrical conductors 12, 14, 16 and 18 of each multiple differential pair assembly.
  • the carrier assembly 80 is then loaded into a sorting fixture (not shown) having sorting combs 82 which define slots having predetermined centers, e.g. 0.050 inches.
  • each multiple differential pair assembly is sorted into the combs 82, as illustrated by Figure 7, in accordance with a predetermined wiring sequence. Color coding or electrical probing may be used to locate predetermined electrical conductors. Excess conductor length is trimmed by cutters 84 ( Figure 8). Once the individual conductors have been sorted and trimmed, a guide assembly 60 is positioned above the individual conductors, as illustrated in Figure 9.
  • the guide assembly 60 may already have been attached to the printed circuit board 50 and the multi-pin assembly 48.
  • the guide assembly 60, printed circuit board 50 and the multi-pin assembly 48 are then positioned between the sorting combs 82 to a position wherein the slot portions 70 of the guide assembly 60 are aligned with the slots of the sorting combs ( Figure 10).
  • the carrier assembly 80 is then moved toward the guide assembly 60, which causes the individual electrical conductors to bend toward the guide assembly ( Figure 11).
  • a pair of positioning combs 86 are next employed to push the individual electrical conductors fully into their appropriate slot portions 70 of the guide assembly 60 ( Figure 12).
  • the carrier is then moved toward the guide assembly 60 in a manner to position the individual conductors through the apertures 72 and in contact with the electrical traces 62A ( Figure 13). Finishing the operational steps, the positioning combs 86 are opened, thereby freeing the assembled apparatus for further process steps, such as electrical soldering for example.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Insulated Conductors (AREA)
EP96304841A 1995-07-10 1996-07-01 Führungsvorrichtung zur Erleichterung des Anschlusses von Mehrfachleitern an einem elektronischen Bauteil Withdrawn EP0753902A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50404595A 1995-07-10 1995-07-10
US504045 1995-07-10

Publications (2)

Publication Number Publication Date
EP0753902A2 true EP0753902A2 (de) 1997-01-15
EP0753902A3 EP0753902A3 (de) 1998-06-17

Family

ID=24004628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96304841A Withdrawn EP0753902A3 (de) 1995-07-10 1996-07-01 Führungsvorrichtung zur Erleichterung des Anschlusses von Mehrfachleitern an einem elektronischen Bauteil

Country Status (2)

Country Link
EP (1) EP0753902A3 (de)
JP (1) JPH0935779A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2350939A (en) * 1999-06-07 2000-12-13 All Best Electronics Co Ltd A connector
WO2003088425A1 (en) * 2002-04-09 2003-10-23 The Ludlow Company Lp Shielded cable terminal with contact pins mounted to printed circuit board

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2811878B1 (fr) * 2000-07-19 2003-02-07 C2C Dispositif d'acquisition de signaux electriques provenant du corps humain et plus particulierement pour l'acquisition de signaux electriques provenant du coeur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522755C2 (de) * 1975-05-22 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Löthilfe zum Verbinden von Flachbandkabeln mit Leiterplatten
FR2597668B1 (fr) * 1986-04-22 1988-06-17 Thomson Csf Bride pour connecteur de cable plat, assurant la tenue mecanique du cable
US5169324A (en) * 1986-11-18 1992-12-08 Lemke Timothy A Plug terminator having a grounding member
US5110306A (en) * 1991-07-24 1992-05-05 W. L. Gore & Associates, Inc. Compact connector assembly and termination guide therefor
EP0699355B1 (de) * 1993-04-26 2000-10-18 Berg Electronics Manufacturing B.V. Verdrahtungsadapter zum anschliessen eines kabels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2350939A (en) * 1999-06-07 2000-12-13 All Best Electronics Co Ltd A connector
GB2350939B (en) * 1999-06-07 2001-05-02 All Best Electronics Co Ltd A connector
WO2003088425A1 (en) * 2002-04-09 2003-10-23 The Ludlow Company Lp Shielded cable terminal with contact pins mounted to printed circuit board

Also Published As

Publication number Publication date
EP0753902A3 (de) 1998-06-17
JPH0935779A (ja) 1997-02-07

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