EP1006622A1 - Shielded electrical connection cable - Google Patents

Shielded electrical connection cable Download PDF

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Publication number
EP1006622A1
EP1006622A1 EP99402993A EP99402993A EP1006622A1 EP 1006622 A1 EP1006622 A1 EP 1006622A1 EP 99402993 A EP99402993 A EP 99402993A EP 99402993 A EP99402993 A EP 99402993A EP 1006622 A1 EP1006622 A1 EP 1006622A1
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EP
European Patent Office
Prior art keywords
connector
shielding
sheath
cable according
retractable
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
EP99402993A
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German (de)
French (fr)
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EP1006622B1 (en
Inventor
Michel André Dunand
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Safran Electrical and Power SAS
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Labinal SA
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Publication date
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Priority to DK99402993T priority Critical patent/DK1006622T3/en
Publication of EP1006622A1 publication Critical patent/EP1006622A1/en
Application granted granted Critical
Publication of EP1006622B1 publication Critical patent/EP1006622B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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 conductive wires surrounded by a shielding casing and provided, at one end, with a connector which comprises a body carrying connections to which the conductive wires are connected and a rear connector electrically connected to the shielding casing, which rear connection is crossed by the bundle of conductive wires and is movable along the beam, between a position coupled to the body of the connector, and a decoupled position from the connector body, in which the rear connector is separated from the body of the connector.
  • Such shielded connection cables are used in particular in the aeronautical industry to convey information sheltered from disruptions electromagnetic from the ambient environment.
  • the shielding envelope is commonly formed from a metallic braid tubular surrounding the wire harness. At its end, the metal braid is mechanically and electrically connected to the rear connector, for example by means of a strapping.
  • the shielding braid usually has a coefficient of high recovery. Also, the braid is very difficult to deform, from so that the back fitting slides along the wire harness is frequently accompanied by irreversible deformations of the braid which degrade its electromagnetic protection characteristics.
  • the covering coefficient of the braid is reduced, which allows an axial deformation thereof, it should be that its geometric structure is not modified during the deformations it undergoes. Indeed, its structure adapted geometry guarantees the conservation of protective properties electromagnetic. In practice, we note that the geometric structure is generally altered during deformation of the braid, which reduces its efficiency.
  • the object of the invention is to provide a shielded connection cable comprising a connector whose rear connection can be easily moved to allow access to the interior of the connector, without causing degradation electromagnetic protection characteristics of the enclosure shielding the wire harness.
  • the invention relates to a shielded connection cable, the aforementioned type, characterized in that the shielding envelope comprises a electromagnetic protective shielding sheath with specified immunity extending around the bundle of conductive wires, which sheath extends inside the rear connector when the latter is in the coupled position, the rear connector being mounted movable around the shielding sheath, and in that the armor jacket has a retractable cuff that surrounds said shield sheath over part of its length, and is connected electrically, at one end, to the rear connector and, at its other end, to the shielding sheath in a region external to the rear connection.
  • FIG. 1 and 2 is shown the same end section a shielded connection cable 10.
  • This comprises a bundle 12 of wires conductors, an electrical connector 14 and a shielding jacket 16 surrounding, from the connector 14, the bundle 12 over its entire length.
  • the bundle 12 of conductive wires comprises a set of metallic wires 18 individually isolated and held together by tape insulator 20.
  • the connector 14 comprises a connector body 22 carrying a set of connection pins 24 to which the ends are connected conductive wires 18. It further comprises a rear connection 26 engaged around the bundle 12 of conductive wires.
  • the rear connector 26 is intended to be mechanically coupled to the connector body 22. It is mounted slidingly movable along the harness 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 pins 24, and a decoupled position, shown in FIG. 2, where the rear connector 26 is away from the connector body 22, thus freeing access to the ends of the conductive wires.
  • the fitting rear 26 is made of a material suitable for electromagnetic protection wires crossing it.
  • the shielding envelope 16 comprises a tubular electromagnetic shielding sheath 28 surrounding the tape 20. It consists of a metal braid whose transfer impedance is less than 400m ⁇ .m -1 at 30 MHz. It has a high recovery coefficient, advantageously greater than 0.7.
  • the shielding sheath 28 is adapted for electromagnetic protection of the bundle 12 of conductive wires. It is therefore very little deformable axially.
  • the shielding sheath 28 has a main section 28A extending over the current part of the bundle 12 of conducting wires and a end section 28B extending inside the rear connector 26 when the latter is in position coupled to the body 22, as shown in 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 overlapping region 30.
  • this region having a length 3 to 5 cm the end section 28A of the bundle of conductive wires is surrounded and covered by the main section 28A.
  • the bond is produced by mechanical clamping of the section 28A around the end of the section 28B. This tightening is obtained for example during the braiding of the section 28A directly around the section 28B.
  • the shielding envelope 16 includes a retractable cuff. 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 rear 26.
  • the retractable sleeve 32 is engaged at its end of connection to the rear connection 26, around a cylindrical section 34 of it. The end of the retractable cuff 32 is held there by a metallic band 36.
  • the retractable cuff 32 is enclosed in a second overlapping region 37, between the main section 28A of the shielding sheath and its end section 28B. She is kept there by mechanical tightening of the main section 28A around the end of the cuff 32 and end section 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 tightening force ensuring the retention of the retractable cuff 32.
  • the braiding angle is greater than 45 °.
  • a metal band can also be added to the second overlapping region 37 to improve the mechanical connection.
  • the connections 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 shield 28.
  • the retractable sleeve 32 is formed of a tubular metallic braid with reduced covering coefficient allowing its axial compression without permanent deformation.
  • the recovery coefficient is advantageously between 0.3 and 0.7 and is preferably equal to about 0.5.
  • the length of the cuff 32 is chosen by function of the covering coefficient to allow axial travel of the rear connection between 3 and 12 cm, and preferably substantially equal to 8 cm.
  • the electromagnetic protection of the wire harness is kept intact, the shielding sheath 28 being continuous outside the connector and extending partially inside of it to inside the interior fitting 26.
  • the electromagnetic performance specified for the cable is therefore provided by main section 28A to the first overlap region 30 then is relayed at low frequencies (frequencies below around 300 kHz) via conductive sleeve 32 and at high frequencies (frequencies above 300 kHz) via the end section 28B having electromagnetic performance identical to that of the section main 28A.
  • the conductive sleeve 32 can then be handled without no degradation of specified electromagnetic performance low and high frequencies does not appear, even if mechanical deformation Cuff prohibition occurs.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Multi-Conductor Connections (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The assembly comprises a cable with a bundle of conductors (18) surrounded by a screen (16) and terminated by a connector (22) portion with multiple contacts (24). The rear portion (26) of the connector, which makes contact with the screen, can slide along the cable to be engaged or disengaged with the connector portion. The cable screen incorporates a shield (28) which extends within the connector rear portion and a retractable sleeve (32) which surrounds the shield over part of its length, making electrical contact with the rear of the connector and the shield at its opposite ends.

Description

La présente invention concerne un câble de connexion électrique blindé, du type comportant un faisceau de fils conducteurs entouré d'une enveloppe de blindage et muni, à une extrémité, d'un connecteur qui comporte un corps portant des connexions auxquelles sont reliés les fils conducteurs et un raccord arrière relié électriquement à l'enveloppe de blindage, lequel raccord arrière est traversé par le faisceau de fils conducteurs et est déplaçable le long du faisceau , entre une position accouplée au corps du connecteur, et une position désaccouplée du corps du connecteur, dans laquelle le raccord arrière est écarté du corps du connecteur.The present invention relates to an electrical connection cable shielded, of the type comprising a bundle of conductive wires surrounded by a shielding casing and provided, at one end, with a connector which comprises a body carrying connections to which the conductive wires are connected and a rear connector electrically connected to the shielding casing, which rear connection is crossed by the bundle of conductive wires and is movable along the beam, between a position coupled to the body of the connector, and a decoupled position from the connector body, in which the rear connector is separated from the body of the connector.

De tels câbles de connexion blindés sont utilisés notamment dans l'industrie aéronautique pour véhiculer des informations à l'abris des perturbations électromagnétiques du milieu ambiant.Such shielded connection cables are used in particular in the aeronautical industry to convey information sheltered from disruptions electromagnetic from the ambient environment.

Afin d'assurer une protection optimale des fils conducteurs, il est souhaitable d'établir une continuité électromagnétique entre l'enveloppe de blindage du faisceau de fils et le connecteur, plus particulièrement son raccord arrière.In order to ensure optimal protection of the conductive wires, it is desirable establish electromagnetic continuity between the shielding envelope of the wire harness and the connector, more particularly its connector back.

L'enveloppe de blindage est couramment formée d'une tresse métallique tubulaire entourant le faisceau de fils. A son extrémité, la tresse métallique est connectée mécaniquement et électriquement au raccord arrière, par exemple par l'intermédiaire d'un cerclage.The shielding envelope is commonly formed from a metallic braid tubular surrounding the wire harness. At its end, the metal braid is mechanically and electrically connected to the rear connector, for example by means of a strapping.

Pour toute intervention sur le connecteur, il convient de faire coulisser le raccord arrière de sa position accouplée avec le corps du connecteur, jusqu'à une position écartée du corps de connecteur où le raccord arrière est disposé sur la partie courante du faisceau de fils.For any intervention on the connector, it is necessary to slide the rear connector from its coupled position with the connector body, up to a position away from the connector body where the rear connector is arranged on the current part of the wire harness.

Or, afin d'assurer une protection satisfaisante contre les perturbations électromagnétiques, la tresse de blindage a, couramment, un coefficient de recouvrement élevé. Aussi, la tresse est très difficilement déformable, de sorte que le coulissement du raccord arrière le long du faisceau de fils s'accompagne fréquemment de déformations irréversibles de la tresse qui dégradent ses caractéristiques de protection électromagnétique.However, in order to ensure satisfactory protection against disturbances electromagnetic, the shielding braid usually has a coefficient of high recovery. Also, the braid is very difficult to deform, from so that the back fitting slides along the wire harness is frequently accompanied by irreversible deformations of the braid which degrade its electromagnetic protection characteristics.

Si le coefficient de recouvrement de la tresse est réduit, ce qui permet une déformation axiale de celle-ci, il convient que sa structure géométrique ne soit pas modifiée lors des déformations qu'elle subit. En effet, sa structure géométrique adaptée garantit la conservation des propriétés de protection électromagnétique. En pratique, on constate que la structure géométrique est généralement altérée lors des déformations de la tresse, ce qui réduit son efficacité.If the covering coefficient of the braid is reduced, which allows an axial deformation thereof, it should be that its geometric structure is not modified during the deformations it undergoes. Indeed, its structure adapted geometry guarantees the conservation of protective properties electromagnetic. In practice, we note that the geometric structure is generally altered during deformation of the braid, which reduces its efficiency.

L'invention a pour but de fournir un câble de connexion blindé comportant un connecteur dont le raccord arrière peut être déplacé facilement pour permettre l'accès à l'intérieur du connecteur, sans provoquer de dégradation des caractéristiques de protection électromagnétiques de l'enveloppe de blindage du faisceau de fils conducteurs.The object of the invention is to provide a shielded connection cable comprising a connector whose rear connection can be easily moved to allow access to the interior of the connector, without causing degradation electromagnetic protection characteristics of the enclosure shielding the wire harness.

A cet effet, l'invention a pour objet un câble de connexion blindé, du type précité, caractérisé en ce que l'enveloppe de blindage comporte une gaine de blindage de protection électromagnétique à immunité spécifiée s'étendant autour du faisceau de fils conducteurs, laquelle gaine se prolonge à l'intérieur du raccord arrière lorsque celui-ci est en position accouplée, le raccord arrière étant monté déplaçable autour de la gaine de blindage, et en ce que l'enveloppe de blindage comporte une manchette rétractable qui entoure ladite gaine de blindage sur une partie de sa longueur, et est reliée électriquement, à une extrémité, au raccord arrière et, à son autre extrémité, à la gaine de blindage en une région extérieure au raccord arrière.To this end, the invention relates to a shielded connection cable, the aforementioned type, characterized in that the shielding envelope comprises a electromagnetic protective shielding sheath with specified immunity extending around the bundle of conductive wires, which sheath extends inside the rear connector when the latter is in the coupled position, the rear connector being mounted movable around the shielding sheath, and in that the armor jacket has a retractable cuff that surrounds said shield sheath over part of its length, and is connected electrically, at one end, to the rear connector and, at its other end, to the shielding sheath in a region external to the rear connection.

Suivant des modes particuliers de réalisation, l'invention comporte l'une ou plusieurs des caractéristiques suivantes :

  • la gaine de blindage comporte deux tronçons tubulaires successifs reliés l'un à l'autre dans une région de chevauchement ;
  • l'extrémité de la manchette rétractable liée à la gaine de blindage est enserrée entre les tronçons de la gaine de blindage dans la région de chevauchement ;
  • les deux tronçons tubulaires successifs sont des tresses, et, dans la région de chevauchement, la tresse externe présente un angle de tressage supérieur à celui de sa partie courante, et notamment supérieure à 45° ;
  • il comporte dans la région de chevauchement un cerclage extérieur de compression radiale des deux tronçons tubulaires ;
  • l'impédance de transfert de la gaine de blindage est supérieure à 400 mΩ.m-1 à 30 MHz;
  • la gaine de blindage et la manchette rétractable comportent chacune une tresse de blindage tubulaire, le coefficient de recouvrement de la tresse de la manchette rétractable étant inférieur au coefficient de recouvrement de la tresse de la gaine de blindage ;
  • la gaine de blindage comporte une tresse dont le coefficient de recouvrement est supérieur à 0,7 ;
  • la manchette rétractable comporte une tresse dont le coefficient de recouvrement est compris entre 0,3 et 0,7 et est avantageusement sensiblement égal à 0,5 ;
  • l'extrémité de la manchette rétractable liée au raccord arrière entoure celui-ci, et un cerclage assure leur liaison mécanique ; et
  • la longueur de la manchette rétractable est adaptée pour un débattement axial du raccord arrière compris entre 3 et 12 cm et avantageusement sensiblement égal à 8 cm.
According to particular embodiments, the invention includes one or more of the following characteristics:
  • the shielding sheath comprises two successive tubular sections connected to one another in an overlapping region;
  • the end of the retractable cuff linked to the shielding sheath is sandwiched between the sections of the shielding sheath in the overlapping region;
  • the two successive tubular sections are braids, and, in the region of overlap, the external braid has a braiding angle greater than that of its current part, and in particular greater than 45 °;
  • it comprises in the overlapping region an outer hoop of radial compression of the two tubular sections;
  • the transfer impedance of the shielding sheath is greater than 400 mΩ.m -1 at 30 MHz;
  • the shielding sheath and the retractable cuff each comprise a tubular shielding braid, the covering coefficient of the braid of the retractable cuff being less than the covering coefficient of the braid of the shielding sheath;
  • the shielding sheath comprises a braid whose covering coefficient is greater than 0.7;
  • the retractable cuff comprises a braid whose covering coefficient is between 0.3 and 0.7 and is advantageously substantially equal to 0.5;
  • the end of the retractable cuff linked to the rear connector surrounds the latter, and a strapping ensures their mechanical connection; and
  • the length of the retractable cuff is suitable for an axial clearance of the rear connection of between 3 and 12 cm and advantageously substantially equal to 8 cm.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux figures 1 et 2 qui sont des vues en élévation avec arrachement partiel d'un câble selon l'invention dans lequel le raccord arrière est respectivement en position accouplée avec le corps du connecteur et en position désaccouplée.The invention will be better understood on reading the description which will follow, given only as an example and made with reference to the figures 1 and 2 which are elevation views with partial cutaway of a cable according to the invention in which the rear connector is respectively in position coupled with the connector body and in the uncoupled position.

Sur les figures 1 et 2 est représenté un même tronçon d'extrémité d'un câble de connexion blindé 10. Celui-ci comporte un faisceau 12 de fils conducteurs, un connecteur électrique 14 et une enveloppe de blindage 16 entourant, depuis le connecteur 14, le faisceau 12 sur toute sa longueur.In Figures 1 and 2 is shown the same end section a shielded connection cable 10. This comprises a bundle 12 of wires conductors, an electrical connector 14 and a shielding jacket 16 surrounding, from the connector 14, the bundle 12 over its entire length.

Le faisceau 12 de fils conducteurs comporte un ensemble de fils métalliques 18 isolés individuellement et retenus ensemble par un rubanage isolant 20.The bundle 12 of conductive wires comprises a set of metallic wires 18 individually isolated and held together by tape insulator 20.

Le connecteur 14 comporte un corps de connecteur 22 portant un ensemble de broches de connexion 24 auxquelles sont reliées les extrémités des fils conducteurs 18. Il comporte en outre un raccord arrière 26 engagé autour du faisceau 12 de fils conducteurs.The connector 14 comprises a connector body 22 carrying a set of connection pins 24 to which the ends are connected conductive wires 18. It further comprises a rear connection 26 engaged around the bundle 12 of conductive wires.

Le raccord arrière 26 est destiné à être accouplé mécaniquement au corps de connecteur 22. Il est monté déplaçable à coulissement le long du faisceau 12 entre une position accouplée au corps 22 de connecteur, représentée sur la figure 1, où il protège l'extrémité du faisceau de fils conducteurs connectés aux broches 24, et une position désaccouplée, représentée sur la figure 2, où le raccord arrière 26 est à l'écart du corps 22 de connecteur, libérant ainsi l'accès aux extrémités des fils conducteurs. Le raccord arrière 26 est réalisé dans un matériau adapté pour la protection électromagnétique des fils le traversant.The rear connector 26 is intended to be mechanically coupled to the connector body 22. It is mounted slidingly movable along the harness 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 pins 24, and a decoupled position, shown in FIG. 2, where the rear connector 26 is away from the connector body 22, thus freeing access to the ends of the conductive wires. The fitting rear 26 is made of a material suitable for electromagnetic protection wires crossing it.

Comme représenté sur la figure 1, lorsque le raccord arrière 26 est accouplé au corps 22 du connecteur, le rubanage 20 est interrompu à l'intérieur du raccord arrière 26.As shown in Figure 1, when the rear connector 26 is coupled to the body 22 of the connector, the taping 20 is interrupted at inside the rear connector 26.

L'enveloppe de blindage 16 comporte une gaine tubulaire de blindage électromagnétique 28 entourant le rubanage 20. Elle est constituée d'une tresse métallique dont l'impédance de transfert est inférieure à 400mΩ.m-1 à 30 MHz. Elle a un coefficient de recouvrement élevé, avantageusement supérieur à 0,7. La gaine de blindage 28 est adaptée pour une protection électromagnétique du faisceau 12 de fils conducteurs. Elle est donc très peu déformable axialement.The shielding envelope 16 comprises a tubular electromagnetic shielding sheath 28 surrounding the tape 20. It consists of a metal braid whose transfer impedance is less than 400mΩ.m -1 at 30 MHz. It has a high recovery coefficient, advantageously greater than 0.7. The shielding sheath 28 is adapted for electromagnetic protection of the bundle 12 of conductive wires. It is therefore very little deformable axially.

La gaine de blindage 28 comporte un tronçon principal 28A s'étendant sur la partie courante du faisceau 12 de fils conducteurs et un tronçon d'extrémité 28B se prolongeant à l'intérieur du raccord arrière 26 lorsque celui-ci est en position couplée au corps 22, comme représenté sur la figure 1.The shielding sheath 28 has a main section 28A extending over the current part of the bundle 12 of conducting wires and a end section 28B extending inside the rear connector 26 when the latter is in position coupled to the body 22, as shown in Figure 1.

Le tronçon principal 28A et le tronçon d'extrémité 28B de la gaine de blindage sont reliés l'un à l'autre électriquement et mécaniquement dans une première région de chevauchement 30. Dans cette région ayant une longueur de 3 à 5 cm, le tronçon d'extrémité 28A du faisceau de fils conducteurs est entouré et recouvert par le tronçon principal 28A. La liaison est réalisée par serrage mécanique du tronçon 28A autour de l'extrémité du tronçon 28B. Ce serrage est obtenu par exemple lors du tressage du tronçon 28A directement autour du tronçon 28B.The main section 28A and the end section 28B of the sheath shielding are connected to each other electrically and mechanically in a first overlapping region 30. In this region having a length 3 to 5 cm, the end section 28A of the bundle of conductive wires is surrounded and covered by the main section 28A. The bond is produced by mechanical clamping of the section 28A around the end of the section 28B. This tightening is obtained for example during the braiding of the section 28A directly around the section 28B.

En outre, l'enveloppe de blindage 16 comporte une manchette rétractable 32 qui entoure la gaine de blindage 28 sur une partie de sa longueur. Elle est reliée électriquement, à une extrémité, au raccord arrière 26 et, à son autre extrémité, à la gaine de blindage 28, à l'extérieur du raccord arrière 26. En particulier, le manchon rétractable 32 est engagé, à son extrémité de raccordement au raccord arrière 26, autour d'un tronçon cylindrique 34 de celui-ci. L'extrémité de la manchette rétractable 32 y est maintenue par un cerclage métallique 36.In addition, the shielding envelope 16 includes a retractable cuff. 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 rear 26. In particular, the retractable sleeve 32 is engaged at its end of connection to the rear connection 26, around a cylindrical section 34 of it. The end of the retractable cuff 32 is held there by a metallic band 36.

A son autre extrémité, la manchette rétractable 32 est enserrée dans une seconde région de chevauchement 37, entre le tronçon principal 28A de la gaine de blindage et son tronçon d'extrémité 28B. Elle y est maintenue par serrage mécanique du tronçon principal 28A autour de l'extrémité de la manchette 32 et du tronçon d'extrémité 28B. A cet effet, le tronçon principal 28A est muni, à son extrémité, d'un ourlet rentrant 38. Dans la région de celui-ci, l'angle de tressage est supérieur à celui de la partie courante du tronçon principal 28A afin d'augmenter l'effort de serrage assurant la retenue de la manchette rétractable 32. Avantageusement, l'angle de tressage y est supérieur à 45°. Un cerclage métallique peut en outre être ajouté dans la seconde région de chevauchement 37 pour améliorer la liaison mécanique.At its other end, the retractable cuff 32 is enclosed in a second overlapping region 37, between the main section 28A of the shielding sheath and its end section 28B. She is kept there by mechanical tightening of the main section 28A around the end of the cuff 32 and end section 28B. For this purpose, the main section 28A is provided, at its end, with a re-entrant hem 38. In the region of this one, the braiding angle is greater than that of the current part of the main section 28A in order to increase the tightening force ensuring the retention of the retractable cuff 32. Advantageously, the braiding angle is greater than 45 °. A metal band can also be added to the second overlapping region 37 to improve the mechanical connection.

Les liaisons de la manchette rétractable 32 au raccord arrière 26 et à la gaine 28 assure une liaison électrique du raccord arrière 26 et de la gaine de blindage 28.The connections 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 shield 28.

La manchette rétractable 32 est formée d'une tresse métallique tubulaire à coefficient de recouvrement réduit permettant sa compression axiale sans déformation permanente. Le coefficient de recouvrement est avantageusement compris entre 0,3 et 0,7 et est de préférence égal à environ 0,5.The retractable sleeve 32 is formed of a tubular metallic braid with reduced covering coefficient allowing its axial compression without permanent deformation. The recovery coefficient is advantageously between 0.3 and 0.7 and is preferably equal to about 0.5.

Ainsi, comme représenté sur la figure 2, lorsqu'elle est comprimée axialement, le diamètre de la manchette 32 augmente. Elle se plisse et présente en surface un profil festoné. Elle autorise ainsi un grand débattement axial du raccord arrière 26.So, as shown in Figure 2, when it is compressed axially, the diameter of the cuff 32 increases. It wrinkles and presents on the surface a scalloped profile. It thus allows a large clearance axial of rear connection 26.

Avantageusement, la longueur de la manchette 32 est choisie en fonction du coefficient de recouvrement pour permettre un débattement axial du raccord arrière compris entre 3 et 12 cm, et de préférence sensiblement égal à 8 cm.Advantageously, the length of the cuff 32 is chosen by function of the covering coefficient to allow axial travel of the rear connection between 3 and 12 cm, and preferably substantially equal to 8 cm.

Avec un tel câble de connexion blindé, on comprend que, lorsque le raccord arrière est écarté du corps du connecteur, comme représenté sur la figure 2, le raccord arrière 26 s'étend autour du tronçon d'extrémité 28B de la gaine de blindage. La manchette rétractable 32 est comprimée axialement par déformation radiale sous la forme d'un tube de diamètre plus important. Cette déformation est rendue possible du fait du faible coefficient de recouvrement de la tresse la constituant.With such a shielded connection cable, it is understood that, when the rear connector is separated from the connector body, as shown in the Figure 2, the rear connector 26 extends around the end section 28B of the shielding sheath. The retractable sleeve 32 is axially compressed by radial deformation in the form of a tube of larger diameter. This deformation is made possible due to the low recovery coefficient of the braid constituting it.

Lors du déplacement du raccord arrière 26, la gaine de blindage 28, aussi bien dans son tronçon principal 28A que dans son tronçon d'extrémité 28B reste sans déformation. Elle n'est donc pas endommagée lors des interventions sur le connecteur 14.When moving the rear connection 26, the shielding sheath 28, both in its main section 28A and in its section end 28B remains without deformation. It is therefore not damaged when working on connector 14.

Après remise en place du raccord arrière 26, comme représenté sur la figure 1, la protection électromagnétique du faisceau de fils conducteurs est maintenue intacte, la gaine de blindage 28 étant continue en dehors du connecteur et se prolongeant partiellement à l'intérieur de celui-ci à l'intérieur du raccord intérieur 26.After replacing the rear connector 26, as shown in Figure 1, the electromagnetic protection of the wire harness is kept intact, the shielding sheath 28 being continuous outside the connector and extending partially inside of it to inside the interior fitting 26.

La performance électromagnétique spécifiée pour le câble est donc assurée par le tronçon principal 28A jusqu'à la première région de chevauchement 30 puis est relayée en basses fréquences (fréquences inférieures à environ 300 kHz) par la manchette conductrice 32 et en hautes fréquences (fréquences supérieures à 300 kHz) par le tronçon d'extrémité 28B présentant une performance électromagnétique identique à celle du tronçon principal 28A.The electromagnetic performance specified for the cable is therefore provided by main section 28A to the first overlap region 30 then is relayed at low frequencies (frequencies below around 300 kHz) via conductive sleeve 32 and at high frequencies (frequencies above 300 kHz) via the end section 28B having electromagnetic performance identical to that of the section main 28A.

La manchette conductrice 32 peut être alors manipulée sans qu'aucune dégradation des performances électromagnétiques spécifiées basses et hautes fréquences n'apparaisse, même si une déformation mécanique rédhibitoire de la manchette se produit.The conductive sleeve 32 can then be handled without no degradation of specified electromagnetic performance low and high frequencies does not appear, even if mechanical deformation Cuff prohibition occurs.

Claims (11)

Câble de connexion électrique blindé (10), comportant un faisceau (12) de fils conducteurs (18) entouré d'une enveloppe de blindage (16) et muni, à une extrémité, d'un connecteur (14) qui comporte un corps (22) portant des connexions (24) auxquelles sont reliés les fils conducteurs (18) et un raccord arrière (26) relié électriquement à l'enveloppe de blindage (16), lequel raccord arrière (26) est traversé par le faisceau (12) de fils conducteurs et est déplaçable le long du faisceau (12), entre une position accouplée au corps (22) du connecteur, et une position désaccouplée du corps (22) du connecteur, dans laquelle le raccord arrière (26) est écarté du corps (22) du connecteur, caractérisé en ce que l'enveloppe de blindage (16) comporte une gaine de blindage (28) de protection électromagnétique à immunité spécifiée s'étendant autour du faisceau (12) de fils conducteurs, laquelle gaine (28) se prolonge à l'intérieur du raccord arrière (26) lorsque celui-ci est en position accouplée, le raccord arrière (26) étant monté déplaçable autour de la gaine de blindage (28), et en ce que l'enveloppe de blindage (16) comporte une manchette rétractable (32) conductrice de l'électricité qui entoure ladite gaine de blindage (28) sur une partie de sa longueur, et est reliée électriquement, à une extrémité, au raccord arrière (26) et, à son autre extrémité, à la gaine de blindage (28) en une région (30) extérieure au raccord arrière (26).Shielded electrical connection cable (10), comprising a harness (12) of conductive wires (18) surrounded by a shielding envelope (16) and provided at one end with a connector (14) which has a body (22) carrying connections (24) to which the conducting wires (18) are connected and a rear connector (26) electrically connected to the shielding casing (16), which rear connection (26) is crossed by the bundle (12) of conductive wires and is movable along the beam (12), between a coupled position to the body (22) of the connector, and a decoupled position of the body (22) of the connector, in which the rear connector (26) is spaced from the body (22) of the connector, characterized in that the shielding casing (16) has an electromagnetic immunity protection shielding sheath (28) specified extending around the bundle (12) of conductive wires, which sheath (28) extends inside the rear connector (26) when this is in the coupled position, the rear connector (26) being mounted displaceable around the shielding sheath (28), and in that the shielding casing (16) has an electrically conductive retractable sleeve (32) which surrounds said shielding sheath (28) over part of its length, and is electrically connected at one end to the rear connector (26) and its other end, to the shielding sheath (28) in an outer region (30) to the rear connector (26). Câble selon la revendication 1, caractérisé en ce que la gaine de blindage (28) comporte deux tronçons tubulaires successifs (28A, 28B) reliés l'un à l'autre dans une région (30, 37) de chevauchement.Cable according to claim 1, characterized in that the sheath shield (28) comprises two successive tubular sections (28A, 28B) connected to each other in an overlapping region (30, 37). Câble selon la revendication 2, caractérisé en ce que l'extrémité (38) de la manchette rétractable (32) liée à la gaine de blindage (28) est enserrée entre les tronçons (28A, 28B) de la gaine de blindage (28) dans la région de chevauchement (30).Cable according to claim 2, characterized in that the end (38) of the retractable cuff (32) linked to the shielding sheath (28) is clamped between the sections (28A, 28B) of the shielding sheath (28) in the overlap region (30). Câble selon la revendication 2 ou 3, caractérisé en ce que les deux tronçons tubulaires successifs (28A, 28B) sont des tresses, et en ce que, dans la région de chevauchement (30, 37), la tresse externe (28A) présente un angle de tressage supérieur à celui de sa partie courante, et notamment supérieure à 45°. Cable according to claim 2 or 3, characterized in that the two successive tubular sections (28A, 28B) are braids, and in this that in the overlapping region (30, 37), the outer braid (28A) has a braiding angle greater than that of its current part, and in particular greater than 45 °. Câble selon l'une quelconque des revendications 2 à 4, caractérisé en ce qu'il comporte dans la région de chevauchement (30, 37) un cerclage extérieur de compression radiale des deux tronçons tubulaires (28A, 28B).Cable according to any one of claims 2 to 4, characterized in that it comprises in the overlapping region (30, 37) a hooping radial compression exterior of the two tubular sections (28A, 28B). Câble selon l'une quelconque des revendications précédentes, caractérisé en ce que l'impédance de transfert de la gaine de blindage (28) est supérieure à 400 mΩ.m-1 à 30 MHz.Cable according to any one of the preceding claims, characterized in that the transfer impedance of the shielding sheath (28) is greater than 400 mΩ.m -1 at 30 MHz. Câble selon l'une quelconque des revendications précédentes, caractérisé en ce que la gaine de blindage (28) et la manchette rétractable (32) comportent chacune une tresse de blindage tubulaire, le coefficient de recouvrement de la tresse de la manchette rétractable (32) étant inférieur au coefficient de recouvrement de la tresse de la gaine de blindage (28).Cable according to any one of the preceding claims, characterized in that the shielding sheath (28) and the retractable sleeve (32) each have a tubular shielding braid, the covering coefficient of the braid of the retractable cuff (32) being less than covering coefficient of the braiding of the shielding sheath (28). Câble selon la revendication 7, caractérisé en ce que la gaine de blindage (28) comporte une tresse dont le coefficient de recouvrement est supérieur à 0,7.Cable according to claim 7, characterized in that the sheath shield (28) comprises a braid whose covering coefficient is greater than 0.7. Câble selon la revendication 7 ou 8, caractérisé en ce que la manchette rétractable (32) comporte une tresse dont le coefficient de recouvrement est compris entre 0,3 et 0,7 et est avantageusement sensiblement égal à 0,5.Cable according to claim 7 or 8, characterized in that the cuff retractable (32) comprises a braid whose covering coefficient is between 0.3 and 0.7 and is advantageously substantially equal at 0.5. Câble selon l'une quelconque des revendications précédentes, caractérisé en ce que l'extrémité de la manchette rétractable (32) liée au raccord arrière (26) entoure celui-ci, et en ce qu'un cerclage (36) assure leur liaison mécanique.Cable according to any one of the preceding claims, characterized in that the end of the retractable cuff (32) linked to the rear connection (26) surrounds it, and in that a hoop (36) ensures their mechanical connection. Câble selon l'une quelconque des revendications précédentes, caractérisé en ce que la longueur de la manchette rétractable (32) est adaptée pour un débattement axial du raccord arrière (26) compris entre 3 et 12 cm et avantageusement sensiblement égal à 8 cm.Cable according to any one of the preceding claims, characterized in that the length of the retractable sleeve (32) is suitable for axial clearance of the rear connection (26) between 3 and 12 cm and advantageously substantially equal to 8 cm.
EP99402993A 1998-12-04 1999-12-01 Shielded electrical connection cable Expired - Lifetime EP1006622B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK99402993T DK1006622T3 (en) 1998-12-04 1999-12-01 Shielded electrical connection cable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9815372A FR2786934B1 (en) 1998-12-04 1998-12-04 SHIELDED ELECTRICAL CONNECTION CABLE
FR9815372 1998-12-04

Publications (2)

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

Family

ID=9533623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99402993A Expired - Lifetime EP1006622B1 (en) 1998-12-04 1999-12-01 Shielded electrical connection cable

Country Status (7)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1548899A1 (en) * 2003-12-22 2005-06-29 Sumitomo Wiring Systems, Ltd. A shielded connector
WO2015145059A1 (en) 2014-03-26 2015-10-01 Labinal Power Systems Electromagnetic cable-shielding device

Citations (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
US4615574A (en) * 1983-07-20 1986-10-07 Icore International Limited Device for terminating an electrical cable
EP0566090A1 (en) * 1992-04-14 1993-10-20 Ametek Aerospace Products, Inc. Repairable cable assembly

Patent Citations (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
US4615574A (en) * 1983-07-20 1986-10-07 Icore International Limited Device for terminating an electrical cable
EP0566090A1 (en) * 1992-04-14 1993-10-20 Ametek Aerospace Products, Inc. Repairable cable assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1548899A1 (en) * 2003-12-22 2005-06-29 Sumitomo Wiring Systems, Ltd. A shielded connector
US7226317B2 (en) 2003-12-22 2007-06-05 Sumitomo Wiring Systems, Ltd. Shielded connector
WO2015145059A1 (en) 2014-03-26 2015-10-01 Labinal Power Systems Electromagnetic cable-shielding device
FR3019370A1 (en) * 2014-03-26 2015-10-02 Labinal Power Systems DEVICE FOR ELECTROMAGNETIC SHIELDING OF CABLES

Also Published As

Publication number Publication date
FR2786934A1 (en) 2000-06-09
DE69923923D1 (en) 2005-04-07
PT1006622E (en) 2005-06-30
DE69923923T2 (en) 2006-04-13
DK1006622T3 (en) 2005-06-27
ATE290257T1 (en) 2005-03-15
FR2786934B1 (en) 2001-02-16
ES2237060T3 (en) 2005-07-16
EP1006622B1 (en) 2005-03-02

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