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EP2581986A1 - Anschlussvorrichtung eines Kabelschutzmantels - Google Patents

Anschlussvorrichtung eines Kabelschutzmantels Download PDF

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Publication number
EP2581986A1
EP2581986A1 EP12187874.8A EP12187874A EP2581986A1 EP 2581986 A1 EP2581986 A1 EP 2581986A1 EP 12187874 A EP12187874 A EP 12187874A EP 2581986 A1 EP2581986 A1 EP 2581986A1
Authority
EP
European Patent Office
Prior art keywords
sheath
sleeve
shielding
sealing
cable
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Withdrawn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
EP12187874.8A
Other languages
English (en)
French (fr)
Inventor
Valentin Dehan
Stéphane Deharbe
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.)
Leoni Wiring Systems France SAS
Original Assignee
Leoni Wiring Systems France SAS
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 Leoni Wiring Systems France SAS filed Critical Leoni Wiring Systems France SAS
Publication of EP2581986A1 publication Critical patent/EP2581986A1/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Withdrawn legal-status Critical Current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
    • 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
    • H01R9/0524—Connection to outer conductor by action of a clamping member, e.g. screw fastening means
    • 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]
    • H01R13/6581—Shield structure
    • H01R13/6582—Shield structure with resilient means for engaging mating connector
    • H01R13/6583—Shield structure with resilient means for engaging mating connector with separate conductive resilient members between mating shield members
    • H01R13/6584—Shield structure with resilient means for engaging mating connector with separate conductive resilient members between mating shield members formed by conductive elastomeric members, e.g. flat gaskets or O-rings

Definitions

  • the invention relates to the electrical connection of an electromagnetic shielding sheath of a shielded cable, intended in particular for use in an electric circuit of a motor vehicle.
  • Screening sheaths are already known for wrapping electrical wires to prevent electromagnetic interference in the vicinity of the wires and also to prevent them from disturbing nearby electronic systems, thereby improving their electromagnetic compatibility (EMC). These sheaths are more particularly useful when the electrical wires are used in high voltage and current, especially in an electric or hybrid motor vehicle.
  • the shielded cable is composed of several concentric layers comprising, starting from the central axis of the cable, a conductive core covered with an electrical insulation sheath, itself covered with a shielding sheath, also covered with a sealing sheath.
  • a known method consists in removing a section of the sealing sheath to strip a section of the shielding sheath of the cable, to surround the section of shielding sheath exposed with a shielding connection, also called armored cladding, and to tighten the fitting on the section to make electrical contact between the cable shielding sheath and the shielded casing.
  • a shielding connection also called armored cladding
  • the section of the shielding sheath exposed is no longer protected from moisture, dust and solvents by the sealing sheath and allows in particular the infiltration of water to the components.
  • An object of the invention is to provide a shield connection not having this disadvantage.
  • the subject of the invention is a device for connecting a cable shielding sheath with a shielding connection intended to surround the shielding sheath, comprising a clamping collar of the shielding connection around the shielding sheath.
  • the device comprises a deformable sealing sleeve intended to be inserted between the shielding connection and the shielding sheath, this sleeve being electrically conductive and deformable under the effect of clamping the collar between a setting configuration and place and a configuration of contacting the shield connection with the shielding sheath, this sleeve forming a sealing bridge between two sections of a cable sealing sheath, the sealing sheath covering, at least partially, the shielding sheath.
  • the shielding sheath, the shielding connection and the sealing sleeve are generally of substantially cylindrical tubular shape.
  • the sleeve surrounding the cable shielding sheath, the sleeve shaft and the sheath shaft axis are coaxial when the sleeve is positioned on the shielding sheath. In its setup configuration, the sleeve is not deformed so that its insertion between the shield connection and the cable shielding sheath is easy.
  • the sleeve forms a sealing bridge between two parts of a cable sealing sheath, the sealing sheath covering, at least partially, the shielding sheath.
  • the sleeve When the fitting is positioned around the sleeve and thus the shielding sheath, the sleeve can take its deformed configuration by means of the clamping collar which clamps the coupling around the sleeve and the sheath allowing electrical contact between the sheath and the connection to the sleeve. the sleeve.
  • the sleeve being sealed, it forms an effective sealing element of the shielding sheath.
  • connection device is therefore simple and effective and makes it possible to perform both the sealing of the shielding sheath and the electrical contact between the shielding sheath and the shielding connection.
  • the invention also relates to an electrical circuit comprising a shielded cable, a shielding connection intended to surround a shielding sheath of the cable and a clamping collar of the shielding connection around a shielding sheath of the cable, characterized in that that a deformable sealing sleeve constitutes both an electrical contact between the shielding sheath and the shielding connection and a sealing bridge between two sections of a cable sealing sheath, the sealing sheath covering , at least partially, the shielding sheath.
  • the invention also relates to a method of electrically connecting a shielding sheath of at least one shielded cable and a shielding connection intended to surround the shielding sheath, of the type in which the shielding connection is connected.
  • a section of the shielding sheath of the cable separating two sections of a shielding sheath of the shielded cable, the sealing sheath covering, at least partially, the shielding sheath, characterized in that the sheath is interposed between shielding and shielding connection, a deformable sleeve forming both an electrical contact between the shielding sheath and the shielding connection and a sealing bridge between the two sections of the sealing sheath.
  • This method is simple to perform and allows the deformable sleeve to ensure the dual function of sealing and electrical contact.
  • a shielded cable 10 of substantially circular cylinder shape comprising an axis of revolution 11 represented by mixed lines.
  • This cable 10 comprises an electrically conductive central core 12, surrounded by an electrical insulation sheath 14, itself surrounded by a shielding sheath 16.
  • the electrical insulation sheath 14 makes it possible to electrically isolate the shielding sheath 16 of the conductive core 12 so that the shielding sheath can protect the core 12 of the cable electromagnetic interference.
  • the shielding sheath 16 is surrounded by a sealing sheath 18 which protects the cable 10 from the dust, solvents and moisture.
  • the cable 10 has a succession of adjacent concentric rings whose center is a disk forming the core 12 of the cable 10 and whose outer ring is the sealing sheath 18.
  • part of the sealing sheath 18 has been removed so as to expose the shielding sheath 16 on a section 20.
  • the shielding sheath section 20 separated between two sections 22, 24 of the sheath sealing.
  • the figure 1 also shows a sealing sleeve 26 inserted around the cable 10. It is of substantially cylindrical cylindrical shape of revolution about an axis coinciding with the axis of revolution 11 of the cable.
  • the sleeve 26 has a slightly curved shape in its middle 28, that is to say that the diameter of the outer section of the sleeve, when the latter is seen in section perpendicular to its axis of revolution 11, in its central portion 28, is smaller than the diameter of the outer section of the sleeve at each end 30.
  • the central portion 28 of the sleeve 26 has a groove 32 of substantially annular shape carried by the outer surface of the sleeve 26.
  • the groove 32 is located in the middle of the sleeve 26.
  • the sleeve 26 is arranged so that it forms a sealing bridge between the two sections 22, 24 of the sealing sheath 18. Thanks to the sleeve 26 forming the sealing bridge, although exposed, the section 20 of the shielding sheath 16 is not exposed to moisture, dust or solvents.
  • the device also comprises a shielding connection 34, positioned around the sleeve 26 and therefore the cable 10 and a clamping collar 36, positioned around the shield connection 34 vis-à-vis the central portion 28 of the sleeve 26.
  • the shield connection 34 is shown so that the other elements of the device can be seen. However, it is generally made of non-transparent material.
  • the Figures 3 and 4 respectively represent the device in the setup configuration and in the contact setup.
  • the sleeve 26 comprises two ends 30. Each end 30 is in sealing contact with a section 22, 24 of the sealing sheath 18. Each end comprises three annular sealing lips 38 extending radially between the shield connection 34 and the section 22, 24 corresponding sealing sheath.
  • the inside diameter of the sleeve 26 at each end 30 is substantially smaller than the outside diameter of the sealing sheath 18 of the cable so that the free end of the lips 38 is slightly Deformed and compressed against the sealing sheath 18.
  • the central portion 28 of the sleeve 26 separates the two ends 30 and is electrically conductive and can assume a configuration of contacting the shield connection 34 with the portion 20 of the shielding sheath under the effect of clamping the collar 36.
  • the sleeve 26 comprises an elastomeric material, such as silicone.
  • the central portion 28 of the sleeve is electrically conductive, it is advantageous to use a similar material to that used for each end to, for example, easily to secure the ends 30 to the central portion 28, but comprising a conductive charge.
  • the conductive filler may be chosen preferentially from the group consisting of aluminum, copper, nickel, silver and graphite.
  • each end 30 does not comprise a conductive filler and is therefore more flexible than the central portion 28 comprising such a filler.
  • the sleeve 26 may be obtained by co-molding or overmoulding, for example.
  • the EMI component is generally shielded by a shielded package by electrically contacting the shield of the cable with the shield of the housing.
  • connection method comprises the steps in which a section of sealing sheath 18 of the cable 10 is cut to expose a section 20 of the shielding sheath 16.
  • the sleeve 26 is put on the 10 and is positioned on the section 20 of the shielding sheath so that the sleeve 26 forms a sealing bridge between the two sections 22, 24 of the sealing sheath 18.
  • the section 20 of the sheath The shielded length is less than the length of the sleeve 26.
  • the length of the section 20 is at least twice the length of one end 30 of the sleeve 26.
  • the sleeve 26 is therefore easily positioned.
  • the sealing lips 38 make it possible to guarantee, once the sleeve 26 has been positioned, a seal between the sleeve 26 and the sections 22, 24 of the sealing sheath 18.
  • the shield connection 34 is then positioned around the assembly formed by the cable 10 and the sleeve 26 and the clamping collar 36 is positioned around the coupling 34 so that the clamping collar is facing the groove 38 of the sleeve.
  • the positioning of the connector 34 and the collar 36 is facilitated, in the example shown, by the slightly diabolo shape of the central portion 28 of the sleeve (the diameter of the outer section of the central portion 28 of the sleeve is smaller than the diameter of the outer section of the sleeve 26 at each end 30).
  • the collar 36 is tightened so that the sleeve takes its configuration of electrically contacting the connection 34 with the shielding sheath 16 by deformation of the sleeve 26. At least one zone carried by the inner surface the electrically conductive central portion 28 of the sleeve is then in contact with the portion 20 of the shielding sheath 16 and at least one zone carried by the outer surface of the central portion 28 is in contact with the shielding connection 34.
  • the sleeve 26 has a tubular shape and each end 30 is bonded respectively to a section 22, 24 of the sealing sheath 18 of the cable 10 by a mass of adhesive 40.
  • the sleeve 26 has a tubular shape and is held on the cable 10 by two clamps 42 clamping each end 30 on a section 22, 24 of the sheath sealing 18 of the cable 10.
  • figure 7 represents a fourth embodiment of the sleeve 26, wherein the sleeve 26 is also tubular and is held on the cable 10 by two sealed heat-shrinkable sleeves 44 respectively clamping each end 30 of the sleeve 26 on a section 22, 24 of the sealing sheath 18 of the cable 10.
  • the holding element may also be a sealing tape or a crimping ring of the sleeve 26 on the cable 10.
  • the sleeve 26 has a tubular shape, it may also have a slightly curved shape in its middle and / or comprise two materials, for example, each end of the sleeve 26 comprises an uncharged elastomeric material and the central portion 28 comprises a material elastomer comprising a conductive filler.
  • the invention is not limited to the example described.
  • a shielding connection 10 is then positioned around all the assemblies each formed. by a cable 10 and a sleeve 26. Then all the central parts of the sleeves 26 are arranged so that when the clamping collar 36 is tightened around the coupling 34, all the sleeves 26 go from their setting configuration. their configuration of contacting the shield connection 34 with each shielding sheath 16.

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  • Cable Accessories (AREA)
EP12187874.8A 2011-10-10 2012-10-10 Anschlussvorrichtung eines Kabelschutzmantels Withdrawn EP2581986A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1159103A FR2981209B1 (fr) 2011-10-10 2011-10-10 Dispositif de raccordement d'une gaine de blindage de cable

Publications (1)

Publication Number Publication Date
EP2581986A1 true EP2581986A1 (de) 2013-04-17

Family

ID=46968096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12187874.8A Withdrawn EP2581986A1 (de) 2011-10-10 2012-10-10 Anschlussvorrichtung eines Kabelschutzmantels

Country Status (2)

Country Link
EP (1) EP2581986A1 (de)
FR (1) FR2981209B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015145059A1 (fr) 2014-03-26 2015-10-01 Labinal Power Systems Dispositif de blindage électromagnétique de câbles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011584A1 (en) * 1991-12-05 1993-06-10 Raychem S.A. Electrical connector
DE20101067U1 (de) * 2001-01-19 2001-05-10 Karin Daume Maschinenteile GmbH & Co. KG, 30938 Burgwedel Einrichtung zum elektrisch leitenden Kontaktieren eines abisolierten Außenleiters eines Koaxialkabels
US6644869B1 (en) * 2002-09-17 2003-11-11 At&T Corp. Conductive splint for fiber optic cables
US7311554B1 (en) * 2006-08-17 2007-12-25 John Mezzalingua Associates, Inc. Compact compression connector with flexible clamp for corrugated coaxial cable
EP1956683A1 (de) * 2007-02-12 2008-08-13 Alcatel Lucent Verfahren zur Kontaktierung eines elektrischen Leiters und flexibles Element zur Herstellung eines elektrischen Kontaktes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011584A1 (en) * 1991-12-05 1993-06-10 Raychem S.A. Electrical connector
DE20101067U1 (de) * 2001-01-19 2001-05-10 Karin Daume Maschinenteile GmbH & Co. KG, 30938 Burgwedel Einrichtung zum elektrisch leitenden Kontaktieren eines abisolierten Außenleiters eines Koaxialkabels
US6644869B1 (en) * 2002-09-17 2003-11-11 At&T Corp. Conductive splint for fiber optic cables
US7311554B1 (en) * 2006-08-17 2007-12-25 John Mezzalingua Associates, Inc. Compact compression connector with flexible clamp for corrugated coaxial cable
EP1956683A1 (de) * 2007-02-12 2008-08-13 Alcatel Lucent Verfahren zur Kontaktierung eines elektrischen Leiters und flexibles Element zur Herstellung eines elektrischen Kontaktes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015145059A1 (fr) 2014-03-26 2015-10-01 Labinal Power Systems Dispositif de blindage électromagnétique de câbles

Also Published As

Publication number Publication date
FR2981209B1 (fr) 2017-06-02
FR2981209A1 (fr) 2013-04-12

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