EP1006622B1 - Câble de connexion électrique blindé - Google Patents

Câble de connexion électrique blindé Download PDF

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Publication number
EP1006622B1
EP1006622B1 EP99402993A EP99402993A EP1006622B1 EP 1006622 B1 EP1006622 B1 EP 1006622B1 EP 99402993 A EP99402993 A EP 99402993A EP 99402993 A EP99402993 A EP 99402993A EP 1006622 B1 EP1006622 B1 EP 1006622B1
Authority
EP
European Patent Office
Prior art keywords
sheath
connector
combination according
retractable sleeve
braid
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.)
Expired - Lifetime
Application number
EP99402993A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1006622A1 (fr
Inventor
Michel André Dunand
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.)
Safran Electrical and Power SAS
Original Assignee
Labinal SA
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 Labinal SA filed Critical Labinal SA
Priority to DK99402993T priority Critical patent/DK1006622T3/da
Publication of EP1006622A1 publication Critical patent/EP1006622A1/fr
Application granted granted Critical
Publication of EP1006622B1 publication Critical patent/EP1006622B1/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

Definitions

  • the present invention relates to an electrical connection cable shielded, of the type comprising a bundle of conducting wires surrounded by a shielding shell and provided at one end with a connector which comprises a body carrying connections to which the conductor wires are connected and a rear connector electrically connected to the shielding casing, which rear connection is traversed by the bundle of conductive wires and is movable along the beam, between a position coupled to the body of the connector, and a disengaged position of the connector body, in which the rear connection is separated from the connector body.
  • Such shielded connection cables are used in particular in the aeronautical industry to convey information away from disturbances electromagnetic environment.
  • the shielding envelope is commonly formed of a metallic braid tubular surrounding the bundle of wires. At its end, the metallic braid is mechanically and electrically connected to the rear connection, for example by means of a strapping.
  • electromagnetic shielding braid In order to ensure satisfactory protection against disturbances electromagnetic shielding braid has commonly a coefficient of high recovery. Also, the braid is very difficult to deform, so that the sliding of the rear fitting along the wire bundle is frequently accompanied by irreversible deformations of the braid which degrade its electromagnetic protection characteristics.
  • the purpose of the invention is to provide a shielded connection cable comprising a connector whose rear connection can be moved easily to allow access to the inside of the connector, without causing degradation electromagnetic protection characteristics of the envelope shielding the bundle of conductive wires.
  • the subject of the invention is a combination according to claim 1.
  • FIG. 1 and 2 a same end section a shielded connection cable 10.
  • This comprises a bundle 12 of wires conductors, an electrical connector 14 and a shielding casing 16 surrounding, from the connector 14, the beam 12 over its entire length.
  • the bundle 12 of conducting wires comprises a set of metal wires 18 isolated individually and held together by tape-taping insulation 20.
  • the connector 14 comprises a connector body 22 carrying a set of connection pins 24 to which the ends are connected 18. It further comprises a rear connection 26 engaged around the bundle 12 of conducting wires.
  • the rear connector 26 is intended to be mechanically coupled to the connector body 22. It is slidably movable along the beam 12 between a position coupled to the connector body 22, shown in Figure 1, where it protects the end of the bundle of conductive wires connected to the pins 24, and an uncoupled position, shown in Figure 2, where the rear connector 26 is away from the connector body 22, thus releasing access to the ends of the conductive wires.
  • the connection 26 is made of a suitable material for electromagnetic protection wires passing through it.
  • the taping 20 is interrupted at the inside of the rear connector 26.
  • the shielding envelope 16 comprises a tubular electromagnetic shielding sheath 28 surrounding the taping 20. It consists of a metal braid whose transfer impedance is less than 400 m ⁇ .m -1 at 30 MHz. It has a high recovery coefficient, advantageously greater than 0.7.
  • the shielding sheath 28 is adapted for electromagnetic shielding of the bundle 12 of conducting wires. It is therefore very little deformable axially.
  • the shielding sheath 28 comprises a main section 28A extending over the current portion of the beam 12 of conductive wires and a end section 28B extending inside the rear connection 26 when it is in position coupled to the body 22, as shown on Figure 1.
  • the main section 28A and the end section 28B of the sheath shielding are connected to each other electrically and mechanically in a first region of overlap 30.
  • this region having a length of 3 to 5 cm the end portion 28A of the bundle of conductive wires is surrounded and covered by the main section 28A.
  • the link is performed by mechanical clamping of the section 28A around the end of the section 28B. This tightening is obtained for example when braiding the section 28A directly around section 28B
  • the shielding envelope 16 includes a retractable sleeve 32 which surrounds the shielding sheath 28 over part of its length. It is electrically connected at one end to the rear connector 26 and at its other end to the shielding sheath 28, outside the fitting 26.
  • the retractable sleeve 32 is engaged at its end connecting to the rear connection 26, around a cylindrical section 34 of it. The end of the retractable sleeve 32 is maintained there by a metal strapping 36.
  • the retractable sleeve 32 is enclosed in a second overlapping region 37, between the main section 28A of the shielding sheath and its end portion 28B. She is kept there by mechanical clamping of the main section 28A around the end of the cuff 32 and the end portion 28B.
  • the main section 28A is provided at its end with a re-entrant hem 38.
  • the braiding angle is greater than that of the current part of the main section 28A in order to increase the clamping force ensuring the restraint of the retractable sleeve 32.
  • the braiding angle is greater than 45 °.
  • a metal strapping can be added in the second overlapping region 37 to improve the mechanical connection.
  • the links of the retractable sleeve 32 to the rear connector 26 and to the sheath 28 provides an electrical connection of the rear connector 26 and the sheath shielding 28.
  • the retractable sleeve 32 is formed of a tubular metal braid with reduced recovery coefficient allowing axial compression without permanent deformation.
  • the recovery coefficient is advantageously between 0.3 and 0.7 and is preferably about 0.5.
  • the length of the sleeve 32 is chosen in function of the overlap coefficient to allow axial deflection rear connection between 3 and 12 cm, and preferably substantially equal to 8 cm.
  • the shielding sheath 28 both in its main section 28A and in its section 28B end remains without deformation. It is not damaged during interventions on the connector 14.
  • the electromagnetic protection of the bundle of conducting wires is kept intact, the shielding sheath 28 being continuous outside the connector and extending partially inside of it to inside the inner fitting 26.
  • the electromagnetic performance specified for the cable is therefore provided by main section 28A to the first area of overlap 30 and is relayed at low frequencies (frequencies lower than about 300 kHz) by the conductive sleeve 32 and at high frequencies (frequencies greater than 300 kHz) by the end section 28B having an electromagnetic performance identical to that of the section principal 28A.
  • the conductive sleeve 32 can then be manipulated without no degradation of electromagnetic performance specified low and high frequencies do not appear, even if mechanical deformation crippling of the cuff occurs.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Multi-Conductor Connections (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
EP99402993A 1998-12-04 1999-12-01 Câble de connexion électrique blindé Expired - Lifetime EP1006622B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK99402993T DK1006622T3 (da) 1998-12-04 1999-12-01 Afskærmet elektrisk forbindelseskabel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9815372A FR2786934B1 (fr) 1998-12-04 1998-12-04 Cable de connexion electrique blinde
FR9815372 1998-12-04

Publications (2)

Publication Number Publication Date
EP1006622A1 EP1006622A1 (fr) 2000-06-07
EP1006622B1 true EP1006622B1 (fr) 2005-03-02

Family

ID=9533623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99402993A Expired - Lifetime EP1006622B1 (fr) 1998-12-04 1999-12-01 Câble de connexion électrique blindé

Country Status (7)

Country Link
EP (1) EP1006622B1 (da)
AT (1) ATE290257T1 (da)
DE (1) DE69923923T2 (da)
DK (1) DK1006622T3 (da)
ES (1) ES2237060T3 (da)
FR (1) FR2786934B1 (da)
PT (1) PT1006622E (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4306541B2 (ja) 2003-12-22 2009-08-05 住友電装株式会社 シールドコネクタ
FR3019370B1 (fr) 2014-03-26 2017-10-13 Labinal Power Systems Dispositif de blindage electromagnetique de cables

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422710A (en) * 1981-12-21 1983-12-27 The United States Of America As Represented By The Secretary Of The Navy Repairable backshell adapter for electrical connector
GB8319630D0 (en) * 1983-07-20 1983-08-24 Icore Int Ltd Device for terminating electrical cable
EP0566090A1 (en) * 1992-04-14 1993-10-20 Ametek Aerospace Products, Inc. Repairable cable assembly

Also Published As

Publication number Publication date
DK1006622T3 (da) 2005-06-27
EP1006622A1 (fr) 2000-06-07
FR2786934A1 (fr) 2000-06-09
DE69923923D1 (de) 2005-04-07
ATE290257T1 (de) 2005-03-15
DE69923923T2 (de) 2006-04-13
ES2237060T3 (es) 2005-07-16
PT1006622E (pt) 2005-06-30
FR2786934B1 (fr) 2001-02-16

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