EP1170824A1 - Manufacturing procedure of an electric contact lamella band - Google Patents

Manufacturing procedure of an electric contact lamella band Download PDF

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Publication number
EP1170824A1
EP1170824A1 EP01401462A EP01401462A EP1170824A1 EP 1170824 A1 EP1170824 A1 EP 1170824A1 EP 01401462 A EP01401462 A EP 01401462A EP 01401462 A EP01401462 A EP 01401462A EP 1170824 A1 EP1170824 A1 EP 1170824A1
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EP
European Patent Office
Prior art keywords
strips
strip
lateral
plane
elastic spring
Prior art date
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Granted
Application number
EP01401462A
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German (de)
French (fr)
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EP1170824B1 (en
Inventor
Markus Keiser
Peter Wagner
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Grid Solutions SAS
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Alstom SA
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Publication of EP1170824A1 publication Critical patent/EP1170824A1/en
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Publication of EP1170824B1 publication Critical patent/EP1170824B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/48Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4881Clamped connections, spring connections utilising a spring, clip, or other resilient member using a louver type spring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49204Contact or terminal manufacturing
    • Y10T29/49208Contact or terminal manufacturing by assembling plural parts
    • Y10T29/49218Contact or terminal manufacturing by assembling plural parts with deforming
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49204Contact or terminal manufacturing
    • Y10T29/49208Contact or terminal manufacturing by assembling plural parts
    • Y10T29/49222Contact or terminal manufacturing by assembling plural parts forming array of contacts or terminals

Definitions

  • the present invention relates to a method of manufacturing a strip of electrical contact strips for an electrical connector, said connectors slats being joined at their ends by two lateral bands continuous, the lamellae being taken out of the plane of said lateral strips by twist around their longitudinal axis, perpendicular to the length of the bandaged.
  • Such a strip of electrical contact strips is used in a electrical connector comprising two parts, respectively linked to one and to the other of the members to be electrically connected, the strip being a member contact intermediary ensuring elastic contact and linked to one of the two pieces.
  • the connector can be flat and include two plates of contact between which the strip is placed, linked to one of the plates, or make a coaxial cylindrical connector with a male part and a female part, one of the two parts comprising a housing for the bandaged.
  • the invention applies in particular, although not limited to, for the permanent current passing contacts in the upper switchgear and medium voltage.
  • the document FR 2 339 259 describes, in relation to FIGS. 7, 10 and 11 of the document, a strip of electrical contact strips of a type such as defined above.
  • the strip of lamellae is made of a material electrically conductive or non-conductive and the blades are coated in their central part by a layer of an electrically conductive material which wraps the two edges of each blade. So we can separate, thanks in this arrangement, the two necessary functions of elastic contact and of good electrical conductivity. Indeed, the material of the strip which must ensuring elastic contact like a spring does not necessarily good qualities of electrical conductivity.
  • each lamella of which has a layer of an electrically conductive material enveloping the two edges of the lamella is not easy to manufacture, each lamella must be individually coated with its conductive layer.
  • the object of the present invention is to propose a method ensuring simple manufacture of a strip of electrical contact strips.
  • the subject of the invention is therefore a method of manufacturing a strip of electrical contact strips for an electrical connector, said connectors slats being joined at their ends by two lateral bands continuous, the lamellae being taken out of the plane of said lateral strips by twist around their longitudinal axis, perpendicular to the length of the strip, characterized in that one starts from a strip of material plastically deformable and capable, after treatment, of having elastic spring properties, in that at least the central part of the strip, on only one of its two faces, is coated with a layer of material which is a good electrical conductor, said strip then being notched with so as to obtain said continuous side strips and strips, said lamellae being taken out of the plane of said lateral strips by said twist, in that one of the edges of each strip is folded up in the direction of the hem where the electrically conductive coating remains outside, said strip then being subjected to a hardening treatment to give it elastic spring properties.
  • the invention also relates to a strip of contact strips electrical for an electrical connector, said strips being joined to their ends by two continuous lateral bands, the slats being exits from the plane of said lateral strips by twisting around their axis longitudinal, perpendicular to the length of the strip, said strip being in a material with elastic spring properties, characterized in that at least the central part of each strip is coated on a single of its faces of an electrically good conductive material, and in that one of the edges of each slat is folded into a hem in a direction leaving appear electrically conductive coating on the outside.
  • FIGS. 1 to 5 illustrate the steps of the process for manufacturing a strip of electrical contact strips according to the invention, FIGS. 4 and 5 showing the end result.
  • Fig. 6 schematically shows a coaxial electrical connector cylindrical in which a strip of contact strips is used electric according to the invention.
  • Fig. 6 very schematically shows an electrical connector cylindrical coaxial comprising a female part 1 and a male part 2 in electrically conductive materials.
  • An intermediate strip 3 of electrical contact strips are linked to the male part 2.
  • This strip intermediate which must ensure good electrical contact between the male parts 2 and female 1 also has the function of ensuring elastic contact between the two pieces.
  • Such a strip 3 of electrical contact strips can also be used in a flat electrical connector where the two parts 1 and 2 are then flat and the strip 3 linked to one of the two.
  • a strip 4 of a plastically deformable material and capable, after treatment, of having elastic spring properties We leave, fig. 1, a strip 4 of a plastically deformable material and capable, after treatment, of having elastic spring properties.
  • a beryllium-bronze alloy This material can be softened by a heat treatment at 750 ° C followed by quenching giving it good malleability.
  • the central part of the strip receives, on one of its faces only, a layer 5 of a material that is a good electrical conductor. This is for example a silver plating.
  • the strip 4 is then notched so as to cut it according to the desired contours, revealing strips 6 connected at their ends by two continuous lateral bands 7 and 8, and comprising tabs 9 used for connecting the strip with one of the parts of the connector with which it is associated.
  • the slats 6 are then removed from the plane of the lateral strips 7 and 8 by twisting around their longitudinal axis X perpendicular to the length L Of the band.
  • the edges 10 and 11 of each strip, as seen in fig. 5 are also curved and especially one of the edges, the lower edge in fig. 5, is completely folded down at hem 12 as shown in FIG. 5.
  • the hem 12 is folded in the direction where the plating electrically good conductor 5 remains outside the fold.
  • figs. 4 and 5 which shows the strip in section along V-V in fig. 4
  • the side bands 7 and 8 are pleated so as to bring the strips 6 closer to one another and thus obtaining a greater number of lamellae per unit length of bandaged.
  • a hardening treatment is carried out by heat treatment at about 325 ° C for about three hours.
  • the invention makes it possible to manufacture in a very simple manner a strip of electrical contact strips in which one can choose a material for its mechanical qualities and elasticity, regardless of its electrical conductivity qualities.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Manufacture Of Switches (AREA)

Abstract

The method consists in using a strip of a plastically deformable material which is capable of acquiring elastic spring properties after treatment. The central portion of the strip is coated in a layer of electrically conductive material and then the strip is punched so as to obtain springs which are interconnected at their ends by two continuous side strips. Thereafter, the springs are displaced from the plane of the strip being twisted about their respective longitudinal axes, and one edge of each spring is folded down as a hem in the direction which ensures that the layer of conductive material remains on the outside of the fold. Thereafter, the strip is subjected to hardening treatment to confer elastic properties thereto.

Description

La présente invention concerne un procédé de fabrication d'une bande de lamelles de contact électrique pour un connecteur électrique, lesdites lamelles étant réunies à leurs extrémités par deux bandes latérales continues, les lamelles étant sorties du plan desdites bandes latérales par torsion autour de leur axe longitudinal, perpendiculaire à la longueur de la bande.The present invention relates to a method of manufacturing a strip of electrical contact strips for an electrical connector, said connectors slats being joined at their ends by two lateral bands continuous, the lamellae being taken out of the plane of said lateral strips by twist around their longitudinal axis, perpendicular to the length of the bandaged.

Une telle bande de lamelles de contact électrique est utilisée dans un connecteur électrique comportant deux pièces, liées respectivement à l'un et à l'autre des organes à relier électriquement, la bande étant un organe intermédiaire de contact assurant un contact élastique et liée à l'une des deux pièces. Le connecteur peut être plan et comporter deux plaques de contact entre lesquelles est placée la bande, liée à l'une des plaques, ou bien constituer un connecteur cylindrique coaxial comportant une partie mâle et une partie femelle, l'une des deux parties comportant un logement pour la bande.Such a strip of electrical contact strips is used in a electrical connector comprising two parts, respectively linked to one and to the other of the members to be electrically connected, the strip being a member contact intermediary ensuring elastic contact and linked to one of the two pieces. The connector can be flat and include two plates of contact between which the strip is placed, linked to one of the plates, or make a coaxial cylindrical connector with a male part and a female part, one of the two parts comprising a housing for the bandaged.

L'invention s'applique en particulier, bien que non limitativement, pour les contacts de passage de courants permanents dans l'appareillage haute et moyenne tension.The invention applies in particular, although not limited to, for the permanent current passing contacts in the upper switchgear and medium voltage.

Le document FR 2 339 259 décrit, en relation avec les fig. 7, 10 et 11 du document, une bande de lamelles de contact électrique d'un type tel que défini ci-dessus. Dans ce document, la bande de lamelles est en un matériau conducteur électrique ou non conducteur et les lames sont revêtues dans leur partie centrale par une couche d'un matériau électriquement conducteur qui enveloppe les deux bords de chaque lame. On peut donc séparer, grâce à cette disposition, les deux fonctions nécessaires de contact élastique et de bonne conductivité électrique. En effet, le matériau de la bande qui doit assurer un contact élastique à la façon d'un ressort n'a pas nécessairement de bonnes qualités de conductivité électrique. Cependant, la bande de lamelles du document ci-dessus, dont chaque lamelle comporte une couche d'un matériau électriquement conducteur enveloppant les deux bords de la lamelle, n'est pas facile à fabriquer, chaque lamelle devant être individuellement revêtue de sa couche conductrice.The document FR 2 339 259 describes, in relation to FIGS. 7, 10 and 11 of the document, a strip of electrical contact strips of a type such as defined above. In this document, the strip of lamellae is made of a material electrically conductive or non-conductive and the blades are coated in their central part by a layer of an electrically conductive material which wraps the two edges of each blade. So we can separate, thanks in this arrangement, the two necessary functions of elastic contact and of good electrical conductivity. Indeed, the material of the strip which must ensuring elastic contact like a spring does not necessarily good qualities of electrical conductivity. However, the gang of lamellae of the above document, each lamella of which has a layer of an electrically conductive material enveloping the two edges of the lamella, is not easy to manufacture, each lamella must be individually coated with its conductive layer.

La présente invention a pour but de proposer un procédé assurant une fabrication simple d'une bande de lamelles de contact électrique.The object of the present invention is to propose a method ensuring simple manufacture of a strip of electrical contact strips.

L'invention a ainsi pour objet un procédé de fabrication d'une bande de lamelles de contact électrique pour un connecteur électrique, lesdites lamelles étant réunies à leurs extrémités par deux bandes latérales continues, les lamelles étant sorties du plan desdites bandes latérales par torsion autour de leur axe longitudinal, perpendiculaire à la longueur de la bande, caractérisé par le fait que l'on part d'une bande d'un matériau déformable plastiquement et capable, après traitement, d'avoir des propriétés élastiques de ressort, en ce qu'au moins la partie centrale de la bande, sur une seule de ses deux faces, est revêtue d'une couche d'un matériau bon conducteur électrique, ladite bande étant ensuite encochée de façon à obtenir lesdites lamelles et bandes latérales continues, lesdites lamelles étant sorties du plan desdites bandes latérales par ladite torsion, en ce que l'un des bords de chaque lamelle est rabattu en ourlet dans le sens où le revêtement électriquement conducteur reste à l'extérieur, ladite bande étant ensuite soumise à un traitement de durcissement pour lui donner des propriétés élastiques de ressort.The subject of the invention is therefore a method of manufacturing a strip of electrical contact strips for an electrical connector, said connectors slats being joined at their ends by two lateral bands continuous, the lamellae being taken out of the plane of said lateral strips by twist around their longitudinal axis, perpendicular to the length of the strip, characterized in that one starts from a strip of material plastically deformable and capable, after treatment, of having elastic spring properties, in that at least the central part of the strip, on only one of its two faces, is coated with a layer of material which is a good electrical conductor, said strip then being notched with so as to obtain said continuous side strips and strips, said lamellae being taken out of the plane of said lateral strips by said twist, in that one of the edges of each strip is folded up in the direction of the hem where the electrically conductive coating remains outside, said strip then being subjected to a hardening treatment to give it elastic spring properties.

L'invention a aussi pour objet une bande de lamelles de contact électrique pour un connecteur électrique, lesdites lamelles étant réunies à leurs extrémités par deux bandes latérales continues, les lamelles étant sorties du plan desdites bandes latérales par torsion autour de leur axe longitudinal, perpendiculaire à la longueur de la bande, ladite bande étant en un matériau ayant des propriétés élastiques de ressort, caractérisé en ce qu'au moins la partie centrale de chaque lamelle est revêtue sur une seule de ses faces d'un matériau électriquement bon conducteur, et en ce que l'un des bords de chaque lamelle est rabattu en ourlet dans un sens laissant apparaítre le revêtement électriquement bon conducteur à l'extérieur.The invention also relates to a strip of contact strips electrical for an electrical connector, said strips being joined to their ends by two continuous lateral bands, the slats being exits from the plane of said lateral strips by twisting around their axis longitudinal, perpendicular to the length of the strip, said strip being in a material with elastic spring properties, characterized in that at least the central part of each strip is coated on a single of its faces of an electrically good conductive material, and in that one of the edges of each slat is folded into a hem in a direction leaving appear electrically conductive coating on the outside.

On va maintenant donner la description d'un exemple de mise en oeuvre de l'invention en se reportant au dessin annexé dans lequel :We will now give the description of an example of setting work of the invention with reference to the accompanying drawing in which:

Les fig. 1 à 5 illustrent les étapes du procédé de fabrication d'une bande de lamelles de contact électrique selon l'invention, les fig. 4 et 5 montrant le résultat final.Figs. 1 to 5 illustrate the steps of the process for manufacturing a strip of electrical contact strips according to the invention, FIGS. 4 and 5 showing the end result.

La fig. 6 montre schématiquement un connecteur électrique coaxial cylindrique dans lequel est utilisée une bande de lamelles de contact électrique selon l'invention.Fig. 6 schematically shows a coaxial electrical connector cylindrical in which a strip of contact strips is used electric according to the invention.

La fig. 6 montre très schématiquement un connecteur électrique coaxial cylindrique comportant une partie femelle 1 et une partie mâle 2 en matériaux électriquement conducteurs. Une bande intermédiaire 3 de lamelles de contact électrique est liée à la partie mâle 2. Cette bande intermédiaire qui doit assurer un bon contact électrique entre les pièces mâle 2 et femelle 1 a en outre pour fonction d'assurer un contact élastique entre les deux pièces.Fig. 6 very schematically shows an electrical connector cylindrical coaxial comprising a female part 1 and a male part 2 in electrically conductive materials. An intermediate strip 3 of electrical contact strips are linked to the male part 2. This strip intermediate which must ensure good electrical contact between the male parts 2 and female 1 also has the function of ensuring elastic contact between the two pieces.

Une telle bande 3 de lamelles de contact électrique peut également être utilisée dans un connecteur électrique plan où les deux pièces 1 et 2 sont alors planes et la bande 3 liée à l'une des deux.Such a strip 3 of electrical contact strips can also be used in a flat electrical connector where the two parts 1 and 2 are then flat and the strip 3 linked to one of the two.

En se reportant maintenant aux fig. 1 à 5, on va décrire le procédé de fabrication d'une telle bande 3 de lamelles de contact électrique.Referring now to Figs. 1 to 5, we will describe the process of manufacture of such a strip 3 of electrical contact strips.

On part, fig. 1, d'une bande 4 d'un matériau déformable plastiquement et capable, après traitement, d'avoir des propriétés élastiques de ressort. On utilise, par exemple, un alliage de béryllium-bronze. Ce matériau peut être adouci par un traitement thermique à 750°C suivi d'une trempe lui donnant une bonne malléabilité.We leave, fig. 1, a strip 4 of a plastically deformable material and capable, after treatment, of having elastic spring properties. We uses, for example, a beryllium-bronze alloy. This material can be softened by a heat treatment at 750 ° C followed by quenching giving it good malleability.

On part donc d'un tel matériau puis, comme montré sur la fig. 2, la partie centrale de la bande reçoit, sur l'une de ses faces seulement, une couche 5 d'un matériau bon conducteur électrique. Il s'agit par exemple d'un placage d'argent. Conformément à la fig. 3, la bande 4 est ensuite encochée de façon à la découper selon les contours souhaités, laissant apparaítre des lamelles 6 reliées à leurs extrémités par deux bandes latérales continues 7 et 8, et comportant des languettes 9 utilisées pour la liaison de la bande avec l'une des parties du connecteur auquel elle est associée.We therefore start from such a material then, as shown in FIG. 2, the central part of the strip receives, on one of its faces only, a layer 5 of a material that is a good electrical conductor. This is for example a silver plating. In accordance with fig. 3, the strip 4 is then notched so as to cut it according to the desired contours, revealing strips 6 connected at their ends by two continuous lateral bands 7 and 8, and comprising tabs 9 used for connecting the strip with one of the parts of the connector with which it is associated.

Les lamelles 6 sont ensuite sorties du plan des bandes latérales 7 et 8 par torsion autour de leur axe longitudinal X perpendiculaire à la longueur L de la bande. Les bords 10 et 11 de chaque lamelle, comme on le voit fig. 5, sont également incurvés et surtout l'un des bords, le bord inférieur sur la fig. 5, est complètement rabattu en ourlet 12 comme le montre bien la fig. 5.The slats 6 are then removed from the plane of the lateral strips 7 and 8 by twisting around their longitudinal axis X perpendicular to the length L Of the band. The edges 10 and 11 of each strip, as seen in fig. 5 are also curved and especially one of the edges, the lower edge in fig. 5, is completely folded down at hem 12 as shown in FIG. 5.

Bien entendu, l'ourlet 12 est rabattu dans le sens où le placage électriquement bon conducteur 5 reste à l'extérieur de la pliure.Of course, the hem 12 is folded in the direction where the plating electrically good conductor 5 remains outside the fold.

Comme le montre également les fig. 4 et 5, et spécialement la fig. 5 qui montre la bande en coupe selon V-V de la fig. 4, les bandes latérales 7 et 8 sont plissées de façon à rapprocher les lamelles 6 les unes des autres et obtenir ainsi un plus grand nombre de lamelles par unité de longueur de bande. As also shown in figs. 4 and 5, and especially fig. 5 which shows the strip in section along V-V in fig. 4, the side bands 7 and 8 are pleated so as to bring the strips 6 closer to one another and thus obtaining a greater number of lamellae per unit length of bandaged.

Lorsque la bande est ainsi placée entre les deux parties conjuguées d'un connecteur électrique, plan, ou cylindrique comme sur la fig. 6, les points de contact de chaque lamelle assurant le passage du courant d'une pièce à l'autre sont figurés en 13 et 14 sur l'une des lamelles 6, fig. 5. Ainsi, grâce à "l'ourlet" 12, il n'est pas nécessaire de réaliser un placage enveloppant les bords des lamelles 6 et la fabrication est facilitée puisqu'il suffit, par tout moyen connu, d'effectuer un placage, fig. 2, sur une seule des deux faces de la bande originale 4.When the strip is thus placed between the two conjugate parts an electrical, flat, or cylindrical connector as in fig. 6, the contact points of each strip ensuring the passage of current from a part to another are shown in 13 and 14 on one of the strips 6, fig. 5. So thanks to the "hem" 12, it is not necessary to make a plating wrapping the edges of the lamellas 6 and the manufacture is facilitated since it is sufficient, by any known means, to carry out a plating, FIG. 2, on only one of two sides of the soundtrack 4.

L'encochage et les opérations de mise en forme : torsion, pliures, sont ensuite réalisés très facilement.The notching and shaping operations: twisting, bending, are then made very easily.

Une fois la confection de la bande terminée, il suffit de la soumettre à un traitement lui donnant des propriétés élastiques de ressort.Once the tape is finished, just submit it to a treatment giving it elastic spring properties.

Dans le cas de l'exemple cité d'une bande en alliage de béryllium-bronze, on effectue un traitement de durcissement par traitement thermique à environ 325°C pendant à peu près trois heures.In the case of the example cited of a beryllium-bronze alloy strip, a hardening treatment is carried out by heat treatment at about 325 ° C for about three hours.

Ainsi, l'invention permet de fabriquer d'une manière très simple une bande de lamelles de contact électrique dans laquelle on peut choisir un matériau pour ses qualités mécaniques et d'élasticité, indépendamment de ses qualités de conductivité électrique.Thus, the invention makes it possible to manufacture in a very simple manner a strip of electrical contact strips in which one can choose a material for its mechanical qualities and elasticity, regardless of its electrical conductivity qualities.

Claims (4)

Procédé de fabrication d'une bande (3) de lamelles (6) de contact électrique pour un connecteur électrique, lesdites lamelles (6) étant réunies à leurs extrémités par deux bandes latérales continues (7,8), les lamelles étant sorties du plan desdites bandes latérales par torsion autour de leur axe longitudinal (X), perpendiculaire à la longueur (L) de la bande, caractérisé par le fait que l'on part d'une bande (4) d'un matériau déformable plastiquement et capable, après traitement, d'avoir des propriétés élastiques de ressort, en ce qu'au moins la partie centrale de la bande, sur une seule de ses deux faces, est revêtue d'une couche (5) d'un matériau bon conducteur électrique, ladite bande étant ensuite encochée de façon à obtenir lesdites lamelles (6) et bandes latérales continues (7, 8), lesdites lamelles étant sorties du plan desdites bandes latérales par ladite torsion, en ce que l'un des bords de chaque lamelle est rabattu en ourlet (12) dans le sens où le revêtement électriquement conducteur (5) reste à l'extérieur, ladite bande étant ensuite soumise à un traitement de durcissement pour lui donner des propriétés élastiques de ressort.Method for manufacturing a strip (3) of electrical contact strips (6) for an electrical connector, said strips (6) being joined at their ends by two continuous lateral strips (7, 8), the strips being taken out of the plane said lateral bands by twisting around their longitudinal axis (X), perpendicular to the length (L) of the band, characterized in that one starts from a band (4) of a plastically deformable and capable material, after treatment, to have elastic spring properties, in that at least the central part of the strip, on only one of its two faces, is coated with a layer (5) of a material which is a good electrical conductor, said strip then being notched so as to obtain said strips (6) and continuous side strips (7, 8), said strips being taken out of the plane of said side strips by said twist, in that one of the edges of each strip is folded hem (12) in the direction wherein the electrically conductive coating (5) remains outside, said strip then being subjected to a hardening treatment to give it elastic spring properties. Procédé selon la revendication 1, caractérisé en ce que, avant ledit traitement de durcissement, lesdites bandes latérales (7, 8) sont plissées de manière à rapprocher les lamelles les unes des autres pour augmenter le nombre de lamelles (6) par unité de longueur.Method according to claim 1, characterized in that , before said hardening treatment, said lateral strips (7, 8) are pleated so as to bring the strips together to increase the number of strips (6) per unit of length . Bande (3) de lamelles (6) de contact électrique pour un connecteur électrique, lesdites lamelles (6) étant réunies à leurs extrémités par deux bandes (7, 8) latérales continues, les lamelles étant sorties du plan desdites bandes latérales par torsion autour de leur axe longitudinal, perpendiculaire à la longueur de la bande, ladite bande étant en un matériau ayant des propriétés élastiques de ressort, caractérisé en ce qu'au moins la partie centrale de chaque lamelle est revêtue sur une seule de ses faces d'un matériau (5) électriquement bon conducteur, et en ce que l'un des bords de chaque lamelle est rabattu en ourlet (12) dans un sens laissant apparaítre le revêtement électriquement bon conducteur à l'extérieur. Strip (3) of electrical contact strips (6) for an electrical connector, said strips (6) being joined at their ends by two continuous lateral strips (7, 8), the strips being pulled out of the plane of said lateral strips by twisting around of their longitudinal axis, perpendicular to the length of the strip, said strip being of a material having elastic spring properties, characterized in that at least the central part of each strip is coated on one of its faces with a electrically good conductive material (5), and in that one of the edges of each lamella is folded into a hem (12) in a direction revealing the electrically good conductive coating on the outside. Bande de lamelles selon la revendication 3, caractérisée en ce que lesdites bandes latérales (7, 8) sont plissées, rapprochant les lamelles (6) les unes des autres.Strip of strips according to Claim 3, characterized in that the said lateral strips (7, 8) are pleated, bringing the strips (6) closer to one another.
EP01401462A 2000-06-29 2001-06-06 Manufacturing process of an electric contact lamella band and an electric contact lamella band Expired - Lifetime EP1170824B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0008429A FR2811147B1 (en) 2000-06-29 2000-06-29 METHOD FOR MANUFACTURING A STRIP OF ELECTRICAL CONTACT BLADES AND A STRIP OF ELECTRICAL CONTACT BLADES
FR0008429 2000-06-29

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EP1170824A1 true EP1170824A1 (en) 2002-01-09
EP1170824B1 EP1170824B1 (en) 2004-03-31

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EP01401462A Expired - Lifetime EP1170824B1 (en) 2000-06-29 2001-06-06 Manufacturing process of an electric contact lamella band and an electric contact lamella band

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US (1) US6783406B2 (en)
EP (1) EP1170824B1 (en)
AT (1) ATE263440T1 (en)
DE (1) DE60102519D1 (en)
FR (1) FR2811147B1 (en)

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Also Published As

Publication number Publication date
US6783406B2 (en) 2004-08-31
US20020004344A1 (en) 2002-01-10
ATE263440T1 (en) 2004-04-15
DE60102519D1 (en) 2004-05-06
FR2811147A1 (en) 2002-01-04
FR2811147B1 (en) 2002-12-06
EP1170824B1 (en) 2004-03-31

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