EP1006622B1 - Shielded electrical connection cable - Google Patents

Shielded electrical connection cable 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
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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
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German (de)
French (fr)
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EP1006622A1 (en
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
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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
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Publication of EP1006622B1 publication Critical patent/EP1006622B1/en
Anticipated expiration legal-status Critical
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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 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.

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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 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.

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 away from disturbances electromagnetic 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 optimum protection of the conductor wires, it is desirable to establish an electromagnetic continuity between the shielding envelope the wire harness and the connector, especially its connection 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 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.

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 connection of its position coupled with the connector body, up to a position away from the connector body where the rear connection is disposed on the running portion of the wire bundle.

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.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.

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 ré-duit son efficacité. Le document US-A-4 615 574 montre une combinaison selon le préambule de la reventication 1.If the overlap coefficient of the braid is reduced, which allows an axial deformation of it, it is appropriate that its geometric structure not be modified during the deformations it undergoes. Indeed, its structure geometric fit ensures the conservation of the protective properties electromagnetic. In practice, we see that the geometric structure is generally impaired during deformation of the braid, which reduces its efficiency. US-A-4,615,574 shows a combination according to the preamble of the resurrection 1.

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 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.

A cet effet, l'invention a pour objet une combinaison selon la revendication 1.For this purpose, the subject of the invention is a combination according to claim 1.

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 comprises one or more of the following features:
  • the shielding sheath comprises two successive tubular sections connected to one another in an overlapping region;
  • the end of the retractable sleeve connected to the shielding sheath is clamped between the sections of the shielding sheath in the overlap region;
  • the two successive tubular sections are braids, and in the overlap region, the outer braid has a braiding angle greater than that of its current portion, 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 sleeve each comprise a tubular shielding braid, the overlap coefficient of the braid of the retractable sleeve being lower than the coating coefficient of the braid of the shielding sheath;
  • the shielding sheath has a braid with a recovery coefficient greater than 0.7;
  • the retractable sleeve comprises a braid whose coefficient of coverage is between 0.3 and 0.7 and is advantageously substantially equal to 0.5;
  • the end of the retractable sleeve connected to the rear connection surrounds it, and a strapping ensures their mechanical connection; and
  • the length of the retractable sleeve is adapted for an axial displacement 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 by way of example and with reference to the figures 1 and 2 which are elevational views with partial tearing of a cable according to the invention in which the rear connection is respectively in position coupled to 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 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.

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 conducting wires comprises a set of metal wires 18 isolated individually and held together by tape-taping insulation 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 18. It further comprises a rear connection 26 engaged around the bundle 12 of conducting 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 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.

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 FIG. 1, when the rear coupling 26 is coupled to the body 22 of the connector, the taping 20 is interrupted at the inside of 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 taping 20. It consists of a metal braid whose transfer impedance is less than 400 mΩ.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.

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 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.

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 28BThe 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. In 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

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 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. In particular, 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.

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 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. For this purpose, the main section 28A is provided at its end with a re-entrant hem 38. In the region of the latter, 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. Advantageously, the braiding angle is greater than 45 °. A metal strapping can be added in 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 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.

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 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.

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.Thus, as shown in Figure 2. when compressed axially, the diameter of the sleeve 32 increases. She folds and presents on the surface a festooned profile. It thus allows a large deflection axial of the rear connector 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 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.

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 spaced from the connector body, as shown on the 2, the rear connection 26 extends around the end section 28B of the shielding sheath. The retractable sleeve 32 is compressed axially by radial deformation in the form of a tube of larger diameter. This deformation is made possible due to the low coefficient of recovery 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 connector 26, 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.

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 connection 26, as shown on FIG. 1, 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.

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 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.

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 manipulated without no degradation of electromagnetic performance specified low and high frequencies do not appear, even if mechanical deformation crippling of the cuff occurs.

Claims (11)

  1. Combination comprising a shielded electrical connection cable (10), the cable comprising a bundle (12) of conductor wires (18) surrounded by a cover (16), the combination being provided at one end of the cable with a connector (14) which comprises a body (22) bearing connections (24) to which the conductor wires (18) are connected and a rear connector (26) electrically connected to the cover (16), the bundle (12) of conductor wires passing through the rear connector (26), which is displaceable along the bundle (12) between a position where it is coupled to the body (22) of the connector and a position where it is uncoupled from the body (22) of the connector, in which the rear connector (26) is apart from the body (22) of the connector, the cover (16) comprising an electromagnetically protective sheath (28) with specified immunity extending around the bundle (12) of conductor wires, the said sheath (28) extending inside the rear connector (26) when the latter is in its coupled position, the combination comprising a retractable sleeve (32) which surrounds the said sheath (28) on one part of its length, characterised in that the retractable sleeve is electrically conductive and electrically connected, at one end, to the rear connector (26) and, at its other end, to the sheath (28) in an area (30) outside the rear connector (26), and in that the rear connector (26) is displaceably mounted around the sheath (28).
  2. Combination according to claim 1, characterised in that the sheath (28) comprises two successive tubular sections (28A, 28B) connected to each other in an overlapping area (30, 37).
  3. Combination according to claim 2, characterised in that the end (38) of the retractable sleeve (32) connected to the sheath (28) is gripped between the sections (28A, 28B) of the sheath (28) in the overlapping area (30).
  4. Combination according to claim 2 or 3, characterised in that the two successive tubular sections (28A, 28B) are braids, and in that, in the overlapping area (30, 37) the external braid (28A) has a braiding angle larger than that of its current part, and particularly larger than 45°.
  5. Combination according to any of claims 2 to 4, characterised in that, in the overlapping area (30, 37), it comprises external strapping for radially compressing the two tubular sections (28A, 28B).
  6. Combination according to any of the preceding claims, characterised in that the transfer impedance of the sheath (28) is greater than 400 mΩm-1 to 30 MHz.
  7. Combination according to any of the preceding claims, characterised in that the sheath (28) and the retractable sleeve (32) each comprise a tubular braid, the covering coefficient of the braid of the retractable sleeve (32) being less than the covering coefficient of the braid of the sheath (28).
  8. Combination according to claim 7, characterised in that the sheath (28) comprises a braid whose covering coefficient is greater than 0.7.
  9. Combination according to claim 7 or 8, characterised in that the retractable sleeve (32) comprises a braid whose covering coefficient is between 0.3 and 0.7 and is advantageously substantially equal to 0.5.
  10. Combination according to any of the preceding claims, characterised in that the end of the retractable sleeve (32) connected to the rear connector (26) surrounds the latter, and in that strapping (36) assures their mechanical connection.
  11. Combination according to any of the preceding claims, characterised in that the length of the retractable sleeve (32) is adapted for an axial displacement of the rear connector (26) of 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 EP1006622A1 (en) 2000-06-07
EP1006622B1 true 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)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4306541B2 (en) 2003-12-22 2009-08-05 住友電装株式会社 Shield connector
FR3019370B1 (en) 2014-03-26 2017-10-13 Labinal Power Systems DEVICE FOR ELECTROMAGNETIC SHIELDING OF 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
ES2237060T3 (en) 2005-07-16
FR2786934B1 (en) 2001-02-16
EP1006622A1 (en) 2000-06-07
DE69923923T2 (en) 2006-04-13
FR2786934A1 (en) 2000-06-09
ATE290257T1 (en) 2005-03-15
DK1006622T3 (en) 2005-06-27
DE69923923D1 (en) 2005-04-07
PT1006622E (en) 2005-06-30

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