FR2714770A1 - Electrical contact with axial shaft for insertion of cable for use in aeronautical applications - Google Patents

Electrical contact with axial shaft for insertion of cable for use in aeronautical applications Download PDF

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Publication number
FR2714770A1
FR2714770A1 FR9400039A FR9400039A FR2714770A1 FR 2714770 A1 FR2714770 A1 FR 2714770A1 FR 9400039 A FR9400039 A FR 9400039A FR 9400039 A FR9400039 A FR 9400039A FR 2714770 A1 FR2714770 A1 FR 2714770A1
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FR
France
Prior art keywords
cable
barrel
openings
ferrule
core
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
FR9400039A
Other languages
French (fr)
Other versions
FR2714770B1 (en
Inventor
Levy Jerome
Peuchet Pascal
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.)
Connecteurs Electriques Deutsch SAS
Original Assignee
Connecteurs Electriques Deutsch SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Connecteurs Electriques Deutsch SAS filed Critical Connecteurs Electriques Deutsch SAS
Priority to FR9400039A priority Critical patent/FR2714770B1/en
Publication of FR2714770A1 publication Critical patent/FR2714770A1/en
Application granted granted Critical
Publication of FR2714770B1 publication Critical patent/FR2714770B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/048—Crimping apparatus or processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

The electrical contact includes a shaft (13) having a number of openings, with glass balls (15) sealed into the openings by gluing, crimping or deforming the shaft. The operator inserts the cable (2) into the shaft (13) until the light passing through the openings (14) is obscured. When the core of the cable is aluminium, the shaft is gilded copper and the core is covered by an annealed silver ferrule (22) within the shaft. The ferrule may have holes which fix it in place by engaging with the balls. After correct insertion, the shaft, ferrule and core are crimped. The free end of the shaft is formed with a conical rim which is pushed back to make a seal at this end.

Description

CONTACT DE TYPE COMPORTANT UN FUT DANS LEQUEL DOIT
ETRE INSERE ET FIXE UN CABLE
La présente invention concerne d'une manière générale un contact électrique se montant dans un connecteur, et plus précisément un contact destiné à l'industrie aéronautique et devant donc répondre à des normes très strictes.TYPE CONTACT HAVING A FUT IN WHICH MUST
BE INSERTED AND FIXED CABLE
The present invention relates generally to an electrical contact mounted in a connector, and more specifically a contact intended for the aeronautical industry and therefore having to meet very strict standards.

L'invention concerne notamment les contacts présentant une extrémité avant assurant une liaison avec des moyens électriques, tels que des broches, et une extrémité arrière pour la fixation d'un câble en temps opportun. The invention relates in particular to contacts having a front end ensuring a connection with electrical means, such as pins, and a rear end for fixing a cable in a timely manner.

Jusqu'alors, le câble était inséré dans la partie dépassante en forme de fût du contact puis solidarisé au contact par sertissage lorsque l'opérateur apercevait l'extrémité du câble au travers d'un trou pratiqué radialement dans le fût. Until then, the cable was inserted into the projecting barrel-shaped part of the contact and then secured to the contact by crimping when the operator saw the end of the cable through a hole made radially in the barrel.

De nouvelles demandes obligent à assurer un contrôle de l'enfoncement du câble dans le fût du contact avant le sertissage afin de vérifier que ledit câble est inséré assez profondément dans le fût et d'éviter des défauts de montage et de plus de rendre étanche le dispositif permettant ce contrôle ainsi que le sertissage rélisé sur le câble. New requests make it necessary to ensure that the cable is inserted into the contact barrel before crimping in order to verify that said cable is inserted fairly deeply into the barrel and to avoid assembly faults and in addition to seal the device allowing this control as well as the crimping carried out on the cable.

La présente invention tend alors à proposer un contact permettant d'assurer ce contrôle de manière très aisée. The present invention therefore tends to propose a contact making it possible to ensure this control very easily.

A cet effet, le contact selon l'invention est caractérisé en ce que le fût dans lequel doit être inséré le câble présente des ouvertures laissant passer la lumière diamétralement opposées dans la zone jusqu'à laquelle ledit câble doit être au minimum enfoncé. To this end, the contact according to the invention is characterized in that the barrel into which the cable is to be inserted has openings allowing the diametrically opposite light to pass through the zone up to which said cable must be at least pushed in.

Par ailleurs, lorsque les fûts des contacts visés par l'invention sont en cuivre doré et que les câbles ont une âme conductrice en aluminium, la valeur de la résistance du contact réalisé par sertissage entre ledit fût en matériau de haute conductivité électrique et ledit câble présente d'importantes variations en fonction des agressions extérieures ce qui est préjudiciable à la qualité de la connexion assurée. Furthermore, when the contact drums covered by the invention are made of gilded copper and the cables have a conductive core of aluminum, the value of the resistance of the contact made by crimping between said drum made of material of high electrical conductivity and said cable presents significant variations depending on external aggressions which is detrimental to the quality of the connection provided.

La présente invention tend également à résoudre ce problème par la disposition d'une ferrule en argent. The present invention also tends to solve this problem by the provision of a silver ferrule.

L'invention sera mieux comprise grâce à la description qui va suivre donnée à titre d'exemple non limitatif en référence aux dessins annexés dans lesquels
- la figure 1 est une vue à échelle réduite d'un contact auquel se rapporte l'invention,
- la figure 2 montre à plus grande échelle la partie arrière du contact dans laquelle l'invention est mise en oeuvre,
- la figure 3 est une coupe suivant la ligne
III-III de la figure 2.The invention will be better understood from the description which follows given by way of nonlimiting example with reference to the accompanying drawings in which
FIG. 1 is a view on a reduced scale of a contact to which the invention relates,
FIG. 2 shows on a larger scale the rear part of the contact in which the invention is implemented,
- Figure 3 is a section along the line
III-III of figure 2.

L'invention s'applique notamment aux contacts du type de celui représenté à la figure 1. The invention is particularly applicable to contacts of the type shown in FIG. 1.

Ce contact comporte une première extrémité 10 ou extrémité avant pour établir une connexion électrique avec un moyen non représenté, une portion médiane 11 et une seconde extrémité 12 ou extrémité arrière pour établir une connexion électrique avec un câble 2. This contact has a first end 10 or front end for establishing an electrical connection with a means not shown, a middle portion 11 and a second end 12 or rear end for establishing an electrical connection with a cable 2.

La première extrémité est de type connu et celle-ci ne faisant pas partie de l'invention, ne sera pas décrite plus longuement ici. The first end is of known type and this does not form part of the invention, will not be described further here.

Des boîtiers sont préparés à l'extérieur desquels dépassent des extrémités arrières 12 de contacts sur lesquelles, après l'installation du boîtier en vue de son utilisation, les câbles 2 nécessaires sont connectés pour la mise en oeuvre dudit boîtier. Boxes are prepared outside of which protrude rear ends 12 of contacts on which, after the installation of the box for its use, the necessary cables 2 are connected for the implementation of said box.

Ladite extrémité arrière 12 se présente sous la forme d'un fût 13 dans lequel est insèré le câble 2 dont une partie de la gaine 21 est retirée afin de laisser apparente l'âme conductrice 20 dudit câble. Après insertion du câble, un sertissage est réalisé pour assurer le maintien en position dudit câble et la connexion électrique du contact et dudit câble.  Said rear end 12 is in the form of a barrel 13 in which is inserted the cable 2 from which a part of the sheath 21 is removed in order to leave visible the conductive core 20 of said cable. After insertion of the cable, a crimping operation is carried out to ensure that said cable is held in position and the electrical connection of the contact and said cable.

Suivant l'invention, le fût 13 présente deux ouvertures 14 diamétralement opposées. Ces ouvertures qui peuvent être traversées par la lumière permettent à l'opérateur installant le câble 2 de vérifier que celui-ci est assez profondément inséré dans le fût. According to the invention, the barrel 13 has two diametrically opposite openings 14. These openings which can be traversed by the light allow the operator installing the cable 2 to verify that it is fairly deeply inserted into the barrel.

Ce contrôle de l'insertion du câble est fait de manière très simple puisque la lumière ne peut plus traverser lesdites ouvertures diamétralement opposées dès que le câble est disposé entre elles. This control of the insertion of the cable is very simple since the light can no longer pass through said diametrically opposite openings as soon as the cable is disposed between them.

Il suffit donc que l'installateur regarde à travers l'une des ouvertures en direction de l'autre, tant que l'âme n'est pas parvenue au niveau desdites ouvertures, il verra une zone claire tandis que cette zone deviendra noire dès que l'âme du câble séparera lesdits ouvertures. It is therefore sufficient for the installer to look through one of the openings in the direction of the other, as long as the core has not reached the level of said openings, he will see a clear zone while this zone will become black as soon as the cable core will separate said openings.

Lesdites ouvertures sont dans l'exemple représenté au dessin, disposées près du fond du fût 13 afin d'assurer que le câble 2 est inséré sensiblement jusqu'au fond dudit fût. Said openings are in the example shown in the drawing, arranged near the bottom of the barrel 13 to ensure that the cable 2 is inserted substantially to the bottom of said barrel.

I1 est bien entendu possible suivant les besoins de positionner ces ouvertures différemment sur la longueur du fût, la seule condition à respecter étant que les ouvertures soient positionnées dans une zone jusqu'à laquelle ledit câble doit être au minimum enfoncé dans le fût. I1 is of course possible according to the needs to position these openings differently along the length of the barrel, the only condition to be observed being that the openings are positioned in an area up to which said cable must be at least pressed into the barrel.

Afin d'assurer l'étanchéité de l'extrémité arrière 12 du contact, les ouvertures 14 sont fermées par des moyens laissant passer la lumière. Dans l'exemple de réalisation représenté au dessin, ces moyens de fermeture sont des billes de verre 15. In order to seal the rear end 12 of the contact, the openings 14 are closed by means allowing light to pass through. In the embodiment shown in the drawing, these closing means are glass balls 15.

L'étanchéité du montage de ces billes 15 dans les ouvertures 14 du fût est assurée par toute technique connue telle que collage, écrasement du fût ou sertissage. The sealing of the mounting of these balls 15 in the openings 14 of the barrel is ensured by any known technique such as bonding, crushing of the barrel or crimping.

Suivant une autre caractéristique de l'invention, l'âme 20 en aluminium argenté du câble 2 est recouverte d'une ferrule en argent recuit 22. Cette ferrule 22 se présente sous la forme d'un tube de diamètre interne tel que l'on puisse y faire entrer l'âme 20 du câble. According to another characteristic of the invention, the silver aluminum core 20 of the cable 2 is covered with an annealed silver ferrule 22. This ferrule 22 is in the form of a tube with an internal diameter such that one can enter the core 20 of the cable.

Dans l'exemple représenté au dessin pour lequel les billes 15 pénètrent dans le fût 13 et l'obstruent en partie, et pour lequel le diamètre externe de l'âme 20 du câble est sensiblement égal à celui de l'espace laissé libre entre lesdites billes, il n'est pas possible de disposer ladite âme 20 portant la ferrule 22 au droit des billes. I1 est alors nécessaire de disposer ladite ferrule à distance de l'extrémité libre de l'âme 20 du câble afin de ne pas entraver l'insertion de celle-ci entre lesdites billes 15. In the example shown in the drawing for which the balls 15 penetrate into the barrel 13 and partially obstruct it, and for which the external diameter of the core 20 of the cable is substantially equal to that of the space left free between said balls, it is not possible to have said core 20 carrying the ferrule 22 in line with the balls. It is then necessary to place said ferrule at a distance from the free end of the core 20 of the cable so as not to hinder the insertion of the latter between said balls 15.

Lorsque le câble 2 porteur de la ferrule est convenablement inséré dans le fût 13, ce qui est contrôlé en regardant à travers l'une des billes 15 en direction de l'autre, l'opérateur fixe ledit câble en position par sertissage. When the cable 2 carrying the ferrule is properly inserted into the barrel 13, which is checked by looking through one of the balls 15 in the direction of the other, the operator fixes said cable in position by crimping.

La présence de la ferrule en argent recuit entre le fût en cuivre doré et l'âme en aluminium du câble permet de limiter les variations de la résistance de contact de cette connexion en fonction de la température. The presence of the annealed silver ferrule between the golden copper barrel and the aluminum core of the cable allows variations in the contact resistance of this connection to be limited as a function of temperature.

Ladite ferrule pourrait être réalisée par toute autre méthode connue en soi, par exemple par dépôt, plaquage ou formage. Said ferrule could be produced by any other method known per se, for example by deposition, plating or forming.

Ladite ferrule peut également comporter un perçage transversal par lequel elle est immobilisée dans le contact par coopération avec les billes. Said ferrule may also include a transverse hole through which it is immobilized in contact by cooperation with the balls.

Suivant encore une autre caractéristique du contact selon l'invention, l'extrémité arrière de celui-ci, c'està-dire l'extrémité libre du fût 13 est munie d'un bourrelet conique 16. According to yet another characteristic of the contact according to the invention, the rear end of the latter, that is to say the free end of the barrel 13 is provided with a conical bead 16.

Ce bourrelet conique 16 est repoussé afin de pincer la gaine 21 du câble de manière à rendre étanche ladite extrémité arrière du contact.  This conical bead 16 is pushed back in order to pinch the sheath 21 of the cable so as to seal said rear end of the contact.

Claims (7)

REVENDICATIONS 1. - Contact du type comportant un fût (13) dans lequel doit être inséré et fixé un câble (2), caractérisé en ce que ledit fût (13) présente des ouvertures (14), diamétralement opposées et disposées dans la zone jusqu'à laquelle ledit câble (2) doit être au minimum enfoncé avant sa fixation afin de contrôler visuellement l'insertion du câble, et en ce que lesdites ouvertures (14) sont fermées par des moyens (15) laissant passer la lumière. 1. - Contact of the type comprising a barrel (13) into which a cable (2) must be inserted and fixed, characterized in that said barrel (13) has openings (14), diametrically opposite and arranged in the region up to to which said cable (2) must be at least depressed before its fixing in order to visually control the insertion of the cable, and in that said openings (14) are closed by means (15) allowing light to pass through. 2. - Contact selon la revendication 1, caractérisé en ce que lesdits moyens (15) laissant passer la lumière sont des billes de verre. 2. - Contact according to claim 1, characterized in that said means (15) allowing the light to pass are glass balls. 3. - Contact selon la revendication 1 ou la revendication 2, caractérisé en ce que le montage desdits moyens (15) laissant passer la lumière dans les ouvertures (14) du fût est rendu étanche. 3. - Contact according to claim 1 or claim 2, characterized in that the mounting of said means (15) letting the light pass through the openings (14) of the barrel is sealed. 4. - Contact selon l'une quelconque des revendications précédentes, caractérisé en ce que lorsque l'âme (20) du câble (2) est en aluminium et le fût (13) est en cuivre doré, ladite âme est recouverte d'une ferrule en argent recuit (22) avant d'être insérée dans ledit fût (13). 4. - Contact according to any one of the preceding claims, characterized in that when the core (20) of the cable (2) is made of aluminum and the barrel (13) is of gilded copper, said core is covered with a annealed silver ferrule (22) before being inserted into said barrel (13). 5. - Contact selon la revendication 4, caractérisé en ce que ladite ferrule (22) est un tube de diamètre interne tel que l'âme (20) dudit câble (2) puisse y pénétrer. 5. - Contact according to claim 4, characterized in that said ferrule (22) is a tube of internal diameter such that the core (20) of said cable (2) can penetrate therein. 6. - Contact selon la revendication 4 ou la revendication 5, caractérisé en ce qu'un sertissage est effectué après contrôle de l'insertion correcte du câble (2) porteur de la ferrule (22) dans le fût (13). 6. - Contact according to claim 4 or claim 5, characterized in that a crimping is carried out after checking the correct insertion of the cable (2) carrying the ferrule (22) in the barrel (13). 7. - Contact selon l'une quelconque des revendications précédentes, caractérisé en ce que l'extrémité arrière libre du fût (13) est munie d'un bourrelet conique 16 pour assurer l'étanchéité de l'extrémité arrière du fût par repoussage de ce bourrelet conique.  7. - Contact according to any one of the preceding claims, characterized in that the free rear end of the barrel (13) is provided with a conical bead 16 to seal the rear end of the barrel by pushing back this conical bead.
FR9400039A 1994-01-05 1994-01-05 Contact of the type comprising a barrel into which a cable must be inserted and fixed. Expired - Fee Related FR2714770B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9400039A FR2714770B1 (en) 1994-01-05 1994-01-05 Contact of the type comprising a barrel into which a cable must be inserted and fixed.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9400039A FR2714770B1 (en) 1994-01-05 1994-01-05 Contact of the type comprising a barrel into which a cable must be inserted and fixed.

Publications (2)

Publication Number Publication Date
FR2714770A1 true FR2714770A1 (en) 1995-07-07
FR2714770B1 FR2714770B1 (en) 1996-02-23

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ID=9458778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9400039A Expired - Fee Related FR2714770B1 (en) 1994-01-05 1994-01-05 Contact of the type comprising a barrel into which a cable must be inserted and fixed.

Country Status (1)

Country Link
FR (1) FR2714770B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2027117A1 (en) * 1968-12-26 1970-09-25 Amp Inc
DE2833755A1 (en) * 1977-08-03 1979-02-22 Bunker Ramo TWO-PIECE CONTACT ARRANGEMENT FOR ELECTRIC CONNECTORS
FR2437705A1 (en) * 1978-09-27 1980-04-25 Alsthom Cgee Electrical connector plug with ribbed body - enables larger dia. to be crimped avoiding multiple sizes for different wires
GB2057784A (en) * 1979-02-07 1981-04-01 Bunker Ramo Improvements in electrical connectors
EP0042332A1 (en) * 1980-06-11 1981-12-23 The Bendix Corporation Electrical contact with inner sleeve member and method of making the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2027117A1 (en) * 1968-12-26 1970-09-25 Amp Inc
DE2833755A1 (en) * 1977-08-03 1979-02-22 Bunker Ramo TWO-PIECE CONTACT ARRANGEMENT FOR ELECTRIC CONNECTORS
FR2437705A1 (en) * 1978-09-27 1980-04-25 Alsthom Cgee Electrical connector plug with ribbed body - enables larger dia. to be crimped avoiding multiple sizes for different wires
GB2057784A (en) * 1979-02-07 1981-04-01 Bunker Ramo Improvements in electrical connectors
EP0042332A1 (en) * 1980-06-11 1981-12-23 The Bendix Corporation Electrical contact with inner sleeve member and method of making the same

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