EP0724310A2 - Système de terminaison multiple avec blindage interne - Google Patents

Système de terminaison multiple avec blindage interne Download PDF

Info

Publication number
EP0724310A2
EP0724310A2 EP96300468A EP96300468A EP0724310A2 EP 0724310 A2 EP0724310 A2 EP 0724310A2 EP 96300468 A EP96300468 A EP 96300468A EP 96300468 A EP96300468 A EP 96300468A EP 0724310 A2 EP0724310 A2 EP 0724310A2
Authority
EP
European Patent Office
Prior art keywords
yoke
termination system
multiple internal
internal shield
shield termination
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
EP96300468A
Other languages
German (de)
English (en)
Other versions
EP0724310A3 (fr
EP0724310B1 (fr
Inventor
Edward P. Goett
Roger Woehl
Robert F. Spratt
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.)
Engineered Transitions Co Inc
Original Assignee
Engineered Transitions Co 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 Engineered Transitions Co Inc filed Critical Engineered Transitions Co Inc
Publication of EP0724310A2 publication Critical patent/EP0724310A2/fr
Publication of EP0724310A3 publication Critical patent/EP0724310A3/fr
Application granted granted Critical
Publication of EP0724310B1 publication Critical patent/EP0724310B1/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
    • 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
    • H01R9/0512—Connections to an additional grounding conductor
    • 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
    • H01R13/65918—Specific features or arrangements of connection of shield to conductive members for shielded multiconductor cable wherein each conductor is individually surrounded by shield
    • 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
    • H01R13/648—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
    • H01R13/6593—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable the shield being composed of different pieces

Definitions

  • the present invention relates to a lightweight wire or cable shielding termination system and most particularly to the use of a yoke disposed between a connector backshell adapter and the back of an electrical connector to provide a direct ground connection for ground leads of multiconductor cables to the rear face of the connector, considered the grounding point.
  • Yet another object of the present invention is to provide a cable shielding system that cooperates with a cable shield termination system to provide continuous electrical shielding from a cable through a termination system contained within a backshell adapter to an electrical connector.
  • Still another object of the present invention is to provide strain relief of the wires of a cable subject to severe shock and vibration whereby to prevent breakage of one or more of the wires of a cable.
  • the present invention includes as a major component an annular termination yoke insertable into the front end of a conventional backshell adapter of the type usually employed to physically connect a multiconductor cable to the back of a multicontact electrical connector.
  • the yoke is preferably a lightweight aluminum or metalized plastic ring with teeth on one end for mating with the teeth at the back of an electrical connector and for maintaining electrical continuity of the ground path.
  • the other end or back of the yoke provides various methods for connecting multiple shield grounding leads to the yoke, the yoke providing continuity to the teeth of the connector (where teeth are employed) through teeth on the front of the yoke.
  • ground leads may be accomplished by various means such as holes in an annular wall at the back of the yoke to receive pins on the ends of the shielding braids, holes in the front of the yoke to receive ground wires that have passed through the center opening of the yoke or as another example, a ground lead bandolier grounding tape onto which numerous ground leads have been presoldered.
  • the tape is soldered or clamped to the ring of the yoke.
  • the tape rides on ridges of metal to insure excellent grounding, the grounding resistance being of the order of 0.001 ohms.
  • the yoke snaps into a plastic adapter plated with metal or a lightweight metal backshell adapter to provide shielding, the adapter being secured to the cable.
  • the yoke is adapted not only to ground the shield braids of individual wires but also the braid disposed about the cable where such is employed.
  • bulk shielding of the communication or power wires may be achieved with a lightweight metallized cloth (braid) woven from threads of, for instance, copper, aluminum or a copper plated polymer substrate.
  • the cloth may be formed as a tube disposed about a cable to be shielded.
  • the tube may have wires for grounding the tube to the aforesaid yoke or may be formed into a pigtail and secured to the yoke directly or indirectly.
  • Strain relief of the wires of a cable carrying data or electricity may be achieved by attaching the shield braids to the yoke. If the length of the shield braids from the saddle clamp at the entry to the backshell adapter to the yoke is sufficiently less than the length of the cable wires from the saddle clamp to the multipin connection, the cable wires will have slack, and all shield braids would have to fail before strain is placed on the wires.
  • the yoke is an annulus having a large center opening 4 and in this configuration a plurality of apertures 6 formed in a rear wall 8 of the yoke 2; the wall 8 being transverse to the axis of the annulus.
  • the apertures 8 have indents (or notches) 10 that cooperate with ridge 12 on pins 14 secured to the ends of conductors 16 to be terminated in (grounded at) the yoke 2.
  • the conductors 16 are the braids of the individual cable conductors and the grounding wires for the cable braid.
  • the front of the yoke 2 has teeth 18 to engage teeth conventionally found on the back of a multipin connector, see Figure 6 teeth 126.
  • the yoke may be a lightweight metal such as aluminum, a lightweight plastic with metalized coating or a lightweight plastic with metallic inserts to provide continuity from the grounding leads to a connector.
  • a yoke 19 has a skirt 20 at its back end; the skirt 20 having a knurled surface 22. Ground leads such as a lead 24, may be clamped to the skirt 20 by a strap 26, preferably but not necessarily conductive.
  • the yoke 19 has teeth 28 as does the yoke of Figure 1.
  • a termination yoke 30 is also in the form of a ring having a toothed front face 32 adapted to interface with an electrical connector ( Figure 6) in conventional fashion.
  • the face 32 has teeth 34 to provide good electrical contact with an electrical connector.
  • a grounding lead bandolier 36 constitutes a flexible metal band 38 to which is soldered a plurality of wire leads 40 to be employed to ground various components of the assembly.
  • the tape 36 may be made up in any convenient length and may be cut to provide the number of leads required for a particular application.
  • the tape is wrapped around and may be soldered or strapped to a rearwardly located circular region or ring 42 of the yoke 30.
  • the ring may have protrusions 44 thereon to insure firm contact between the ring and the tape.
  • the grounding leads are illustrated as having Solder Sleeves® 46 or the like, connected to their ends remote from the ring 42. (Solder Sleeves is a registered trademark of Raychem Corporation.)
  • a yoke 48 has teeth 50 at its front end formed on an annular shoulder 52.
  • the interface between a region 54 of reduced diameter of the yoke and the shoulder 52 defines a sloping wall 56 between the outer perimeter of the shoulder 52 and the region 54.
  • a plurality of holes 58 extend through the shoulder 52 below the teeth 50 from the front of the yoke through to the region 54.
  • Leads 59 to be terminated in the yoke 48 are passed through a large passage 60 through the main body of the yoke and are then reversed and inserted into and through the holes 58 and preferably into contact with an annular shoulder 62 at the back of the region 54.
  • the leads 59 may be clamped against the surface of the region 54 by a strap 64.
  • a yoke 66 is quite similar to the yoke of Figure 1 with the exception of a ring of holes 68 about annular skirt 70 behind an outwardly sloping region 72 of the yoke.
  • teeth 74 are formed for engagement with mating teeth on the back of an electrical connector to be engaged by the yoke.
  • the yoke has a further ring of holes 76 into which ground leads, such as lead 78, are to be inserted.
  • the holes 68 and 76 intersect for several reasons, first a technician assembling the device can determine if the end of the lead is fully inserted into its hole 76 and secondly, if desired, a length of solder wire may be inserted into hole 68 and heated to solder the wire in place. Alternatively, a short length of solder wire may be inserted into a hole 76, melted and then lead 78 inserted until viewed through hole 68. Heavily tinned wires may also be used as well as a conductive mastic.
  • a cable 80 is disposed in a conduit 82 and is included in Figure 6 to demonstrate the full capability of the yoke.
  • the cable 80 has shielded wires 84 extending from the cable through a backshell adapter 86, thence through an adapter coupling nut 88, and a yoke 90 to the back of a conventional cable connector 92.
  • Outer shields (braids) (not illustrated) of the wires 84 are connected by Solder Sleeves 94 to ground leads 96 connected to surface 95 of the yoke 90, for instance, by the bandolier of Figure 4, reference numeral 36.
  • the cable and conduit are secured to a reduced diameter region 98 of the adapter 86 by a termination strap 100 that clamps strain relief filaments 102 of the cable, a metal cloth shielding braid 104, and grounding drain wires 108 of the conduit to the region 98 of the adapter 86.
  • the interface between the conduit 82 and adapter body 86 is covered by a heat shrink sleeve 110 to protect against the environment.
  • the adapter 86 may be a plastic having a metallized coating to provide shielding in its region but does not provide a grounding function.
  • the grounding of the braid 104 and drain wires 108 are affected by folding the drain wires back on themselves (see length 108a), clamping them to the adapter 86 on an annulus 112, formed on the back thereof, by the strap 100 and bringing the wire 108 out from under the termination strap and to a Solder Sleeve 114 to one of the grounding leads 96.
  • the metal cloth shield 104, braids of the leads 84, and drain wires (strain relief wires) 108 to surface 95 of the yoke, the yoke in turn being grounded via the connector body 92 to system ground.
  • adapter 86 coupling nut 88
  • adapter 86 is secured to the adapter 86 by a snap ring 116 recessed in a circular slot 118 in the outer surface of the adapter.
  • the yoke 90 when the system is assembled, is seated in the adapter 86 with its surface 117 in engagement with the surface 119 of the adapter, whereby teeth 121 of the yoke can engage teeth 123 (if provided) of the connector 92.
  • the left region of the adapter coupling nut 88 as viewed in Figure 6, is threaded to mate with threads 120 on the connector 92.
  • the yoke 90 has a radial hole 122 formed in its surface 123 which hole mates with a pin 124 (only half being shown in Figure 6, see Figure 7) to retain the yoke in the adapter.
  • the slot and pin arrangement is oriented to not be dislodged by rotation of adapter coupling nut 88.
  • All regions at the interface between the conduit and electrical connector are fully electrically shielded and are environmentally sealed by an O-ring 125 as well as by sleeve 110.
  • the materials employed throughout are lightweight such as aluminum or plated plastics. As a result of light weight and positive coupling the structure is resistant to shock and vibration while the environmental shielding reduces corrosion and choice of materials reduces effects of heat.
  • EMI protection is provided as indicated above.
  • the yoke may have teeth or may have a flat surface providing high pressure contact between the yoke and connector. The yoke surface may be roughened for better contact.
  • the yoke 90 is illustrated as inserted into the end of the adapter 86.
  • the slot 122 is aligned with the pin 124 and the pin is depressed so as to enter slot 122.
  • the yoke is now fixed in place and provides, when the nut 88 is screwed onto threads 120 of the adapter 92, direct engagement with teeth 126 of the connector, thus providing continuity of the grounding path.
  • the termination strap may be a standard cable tie and can be readily replaced if necessary.
  • FIG. 8 of the accompanying drawings a prior art cable termination system is illustrated.
  • four Teflon coated cables 130 enter a backshell connector 132 through a rubber or the like collar 134.
  • a saddle clamp 136 tighlty binds the collar 134 about cables 130 to prevent movement of the cables relative to the backshell connector 132.
  • the outer braids 138 of the individual cables 130 are brought out of the ends of the cables 130, looped back over the saddle clamp 136 and secured to an annuluar area 140 of the backshell connector to the left, of the clamp 136, as viewed in Figure 8.
  • the braids 138 are secured to the area 140 by, in this instance, a hose clamp 142.
  • the backshell connector is secured to a multipin electrical connector 144 in conventional fashion. Wires 146 of the cables 130 are connected to the multipin connector 144 as can be seen in the breakaway region of the backshell connector.
  • Cables 150 enter a backshell connector 152 through a saddle or like clamp 154.
  • the cables have braided shields 156 that are removed from the cables and formed into pigtails 158.
  • the pigtails are attached to a yoke 159 while conductors 160 of the cables are connected to a multipin electrical connector 162. Note that the conductors 160 are illustrated as being wavey to indicate that they are slack while the braids are straight to indicate they are taut.
  • Each cable 150 has its braid pigtailed and attached to the yoke. Thus as a practical matter all braids would have to break or become unsoldered before strain is palced on any of the leads. Since the braids are stronger than the conductors the potential for damage to the conductors is greatly reduced.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Cable Accessories (AREA)
EP96300468A 1995-01-24 1996-01-24 Système de terminaison multiple avec blindage interne Expired - Lifetime EP0724310B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37743495A 1995-01-24 1995-01-24
US377434 1995-01-24

Publications (3)

Publication Number Publication Date
EP0724310A2 true EP0724310A2 (fr) 1996-07-31
EP0724310A3 EP0724310A3 (fr) 1997-02-19
EP0724310B1 EP0724310B1 (fr) 2002-07-24

Family

ID=23489099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96300468A Expired - Lifetime EP0724310B1 (fr) 1995-01-24 1996-01-24 Système de terminaison multiple avec blindage interne

Country Status (2)

Country Link
EP (1) EP0724310B1 (fr)
DE (1) DE69622446T2 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2745424A1 (fr) * 1996-02-27 1997-08-29 Interconnexions Sa Bague de reprise de blindage
DE19631300A1 (de) * 1996-08-02 1998-02-05 Alcatel Kabel Ag Anordnung zum Einführen des Endes einer geschirmten elektrischen Leitung in ein metallisches Gehäuse
EP0841725A1 (fr) * 1996-11-08 1998-05-13 Schaltbau Aktiengesellschaft Connecteur électrique blindé
WO1998027626A1 (fr) * 1996-12-19 1998-06-25 The Whitaker Corporation Connecteur circulaire a haute densite
EP0874420A2 (fr) * 1997-04-25 1998-10-28 AMPHENOL-TUCHEL ELECTRONICS GmbH Système de connexion d'écran de connexion et connecteur utilisant celui-ci
WO1999031763A1 (fr) * 1997-12-18 1999-06-24 Raytheon Aircraft Corporation Ensemble connecteur de terminaisons de blindages et son procede d'utilisation
WO2000014831A1 (fr) * 1998-09-08 2000-03-16 The Boeing Company Collier de serrage anti-induction electromagnetique avec mise a la masse
EP1061612A1 (fr) * 1997-03-19 2000-12-20 Engineered Transitions Company, Inc Dispositif de soulagement de contraintes pour accessoires électriques
EP2053701A1 (fr) 2007-09-17 2009-04-29 Deutsch Engineered Connecting Devices, Inc. Dispositif de bouclier arrière pour un connecteur
WO2017023491A1 (fr) 2015-08-03 2017-02-09 Glenair, Inc. Anneau de terminaison fendu serré pour ensemble connecteur électrique
CN112038840A (zh) * 2019-06-04 2020-12-04 泰连公司 屏蔽件接地电连接器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3090223B1 (fr) * 2018-12-17 2020-12-11 Safran Electrical & Power Raccord arrière avec protection électromagnétique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5052947A (en) * 1990-11-26 1991-10-01 United States Of America As Represented By The Secretary Of The Air Force Cable shield termination backshell
EP0463760A1 (fr) * 1990-06-27 1992-01-02 The Whitaker Corporation Terminaison d'un petit câble coaxial
US5195910A (en) * 1990-01-16 1993-03-23 Nec Corporation Coaxial connector
EP0546657A2 (fr) * 1991-12-11 1993-06-16 General Electric Company Connecteur électrique réparable avec enveloppe
WO1993016503A1 (fr) * 1992-02-17 1993-08-19 Raychem S.A. Amenagement pour terminaison de cable coaxial

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195910A (en) * 1990-01-16 1993-03-23 Nec Corporation Coaxial connector
EP0463760A1 (fr) * 1990-06-27 1992-01-02 The Whitaker Corporation Terminaison d'un petit câble coaxial
US5052947A (en) * 1990-11-26 1991-10-01 United States Of America As Represented By The Secretary Of The Air Force Cable shield termination backshell
EP0546657A2 (fr) * 1991-12-11 1993-06-16 General Electric Company Connecteur électrique réparable avec enveloppe
WO1993016503A1 (fr) * 1992-02-17 1993-08-19 Raychem S.A. Amenagement pour terminaison de cable coaxial

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2745424A1 (fr) * 1996-02-27 1997-08-29 Interconnexions Sa Bague de reprise de blindage
US5941717A (en) * 1996-08-02 1999-08-24 Alcatel Arrangement for introducing the end of a shielded electric line into a metal housing
DE19631300A1 (de) * 1996-08-02 1998-02-05 Alcatel Kabel Ag Anordnung zum Einführen des Endes einer geschirmten elektrischen Leitung in ein metallisches Gehäuse
EP0841725A1 (fr) * 1996-11-08 1998-05-13 Schaltbau Aktiengesellschaft Connecteur électrique blindé
WO1998027626A1 (fr) * 1996-12-19 1998-06-25 The Whitaker Corporation Connecteur circulaire a haute densite
US5871371A (en) * 1996-12-19 1999-02-16 The Whitaker Corporation High density circular connector
EP1061612A1 (fr) * 1997-03-19 2000-12-20 Engineered Transitions Company, Inc Dispositif de soulagement de contraintes pour accessoires électriques
EP0874420A3 (fr) * 1997-04-25 2000-01-12 AMPHENOL-TUCHEL ELECTRONICS GmbH Système de connexion d'écran de connexion et connecteur utilisant celui-ci
EP0874420A2 (fr) * 1997-04-25 1998-10-28 AMPHENOL-TUCHEL ELECTRONICS GmbH Système de connexion d'écran de connexion et connecteur utilisant celui-ci
WO1999031763A1 (fr) * 1997-12-18 1999-06-24 Raytheon Aircraft Corporation Ensemble connecteur de terminaisons de blindages et son procede d'utilisation
US6276967B1 (en) * 1997-12-18 2001-08-21 Raytheon Aircraft Corporation Shield termination connector assembly and method for using the same
WO2000014831A1 (fr) * 1998-09-08 2000-03-16 The Boeing Company Collier de serrage anti-induction electromagnetique avec mise a la masse
EP2053701A1 (fr) 2007-09-17 2009-04-29 Deutsch Engineered Connecting Devices, Inc. Dispositif de bouclier arrière pour un connecteur
WO2017023491A1 (fr) 2015-08-03 2017-02-09 Glenair, Inc. Anneau de terminaison fendu serré pour ensemble connecteur électrique
EP3332455A4 (fr) * 2015-08-03 2019-07-24 Glenair, Inc. Anneau de terminaison fendu serré pour ensemble connecteur électrique
CN112038840A (zh) * 2019-06-04 2020-12-04 泰连公司 屏蔽件接地电连接器
CN112038840B (zh) * 2019-06-04 2024-05-28 泰连公司 屏蔽件接地电连接器

Also Published As

Publication number Publication date
EP0724310A3 (fr) 1997-02-19
DE69622446T2 (de) 2003-05-08
DE69622446D1 (de) 2002-08-29
EP0724310B1 (fr) 2002-07-24

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