EP2847825B1 - Mechanische anordnung mittels autogener nieten - Google Patents

Mechanische anordnung mittels autogener nieten Download PDF

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Publication number
EP2847825B1
EP2847825B1 EP13728447.7A EP13728447A EP2847825B1 EP 2847825 B1 EP2847825 B1 EP 2847825B1 EP 13728447 A EP13728447 A EP 13728447A EP 2847825 B1 EP2847825 B1 EP 2847825B1
Authority
EP
European Patent Office
Prior art keywords
support
strands
cable
assembly according
multistrand cable
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.)
Not-in-force
Application number
EP13728447.7A
Other languages
English (en)
French (fr)
Other versions
EP2847825A1 (de
Inventor
Didier Denerf
Christophe Lequeux
Philippe Fortanier
Eric LABREZE
Laurent Clisson
Matthieu Francillout
Bertrand CAHUZAC
Richard RETOUT
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.)
Legrand France SA
Original Assignee
Legrand France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legrand France SA filed Critical Legrand France SA
Publication of EP2847825A1 publication Critical patent/EP2847825A1/de
Application granted granted Critical
Publication of EP2847825B1 publication Critical patent/EP2847825B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0036—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08—Several wires or the like stranded in the form of a rope
    • 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
    • H01R4/06—Riveted connections
    • 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
    • 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
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49194—Assembling elongated conductors, e.g., splicing, etc.

Definitions

  • the present invention relates to the field of mechanical assembly of a multi-strand cable with a support.
  • the support encloses the wire conductor.
  • the implementation of these techniques shows that they can be complex to achieve, especially when the assembly must be performed in a crowded environment.
  • this type of assembly requires often to be protected from the external environment to retain over time its electrical and mechanical properties, the connection between the two components is not airtight.
  • the patent application EP 2 458 694 describes a device in which the support comprises a light and a clamp-type tool whose upper part is flat or concave crushes the driver to pack around the light.
  • this technique appears to give a bad result in the case of multi-stranded conductor, the strands fraying around the light can thus degrade the mechanical strength and / or the electrical contact sought.
  • the processes mentioned above act mainly by compression of the strands thus knowing the limits of quality of contact and deformation of the crimping process including the residual interstices, the relaxation tendency are the best known.
  • the object of the invention in this context, is to propose a mechanical assembly of a multi-strand cable and a support that solves all or some of the aforementioned drawbacks.
  • a mechanical assembly of a multi-strand cable comprising a plurality of strands and a support, the plurality of strands being aligned at the height of the support in a first direction and the support having in a perpendicular to the first direction a convex edge
  • the assembly of the plurality of strands on the support is made by stamping the plurality of strands around the convex edge resulting in a deformation of a part of the plurality of strands around the convex edge
  • the support further comprises a light in a plane substantially parallel to the first direction and whose border forms at least a portion of the convex edge, the stamping being performed on the part of the strands positioned between the edges of the light such that a portion of the plurality of stamped strands passes through the lumen and overflows around the convex edge of the r its upper and lower sides, and in that the strands have been compressed during assembly, the strands
  • the support may advantageously be in a rigid material such as PCB plates, the operation does not require deformation of the support.
  • the strands advantageously overflow around the edge of the light due to their compacted and creped state.
  • a multi-strand cable comprises at least one assembly as described above.
  • This assembly method advantageously allows an assembly even in a relatively small environment insofar as it can be achieved with a portable clamp having suitable jaws, the clamping pressure can be only manual, especially for the materials the more malleable.
  • a support 1 comprises a flat zone 3 extending substantially in a median plane P in which a slot 5 is pierced, putting in communication a first face 7 and a second face 9 of the support 1.
  • the light comprises a convex edge 10.
  • multi-strand cable 11 is positioned on the first face 7.
  • multi-strand cable is meant a cable composed of a plurality of elementary strands of the same material. Most often, the elementary strands are held together to form the cable either by torsion or by weaving.
  • numerous examples of multi-stranded cables in the field of copper electrical cables are known.
  • the strands of the cable 11 form a compact material around and in the slot 5, a part of this material projecting over the edges of the slot 5 and in particular on the edge of the second face 9.
  • the sectional view of the figure 3 shows that the material of the strands has amalgamated and substantially forms an X, crossing and filling the lumen 5 and overflowing on its edges, thus "locking" the support in the multi-stranded cable 11.
  • This form is similar to that of FIG. a rivet that would have been inserted in the light and then crushed around the support, which explains the term “autogenous riveting" used to name this type of assembly.
  • an assembly by deformation of the material of a multi-strand cable around the edges of the light can not be deduced from a simple transposition of the application of an assembly for a mono-strand cable to an assembly for a multi-strand cable.
  • the prejudice lies in particular in that the diameter of a multi-strand cable comprises a sum of smaller diameter diameters for each of the adjoining strands.
  • the intention to apply deformation to a multi-strand cable presupposes that the strands may break during their deformation and may reduce the strength of such an assembly.
  • the compaction of the deforming material from the strands has a mechanical strength of the assembly beyond what could be envisaged.
  • An effect similar to a crushed braid which would present a "double" resistance in particular due firstly to the compaction related to the crushing of the material and secondly due to the resistance of the interwoven strands forming a knot when crushed.
  • each strand is very deformed so that its ratio of the perimeter length / area of its section, which is minimal in the initial state of a cylindrical strand, increases very substantially.
  • the entanglement of the strands creates a "helical effect" which consolidates the joining of the strands between them.
  • the high compression of the strands causes surface effects between the strands which can cause in some configurations a quasi-welding of the strands between them.
  • the deformation of a multi-strand cable engaged by a compaction of the material around the opening of the support is obtained thanks to the punch on the one hand and on the other hand thanks to a mold, or a matrix, allowing fold the deformed material around the edges of the opening.
  • the remainder of the description supports the means necessary to obtain such an assembly between a multi-stranded cable and a support comprising a convex face. Indeed, it appears that at least, the support can be content to have a convex section surface in a plane perpendicular to the main orientation of the strands.
  • the deformation of the cable is then oriented by tools and shims so that there is a creep of the strands around the convex edge, the pressure forces being applied in the perpendicular plane.
  • a tool comprises a die 31, a flank 32 and a punch 33.
  • figure 4 the second face 9 of the support 1 is placed on the matrix 31 which has clearances facing and below the edges of the light 5.
  • the multi-strand cable 11 is then placed on the first face 7 of the support 1, then the flange 32 is deposited on the support 1 and around the multi-strand cable 11 in the area where the assembly is to be performed.
  • This flank 32 has the function of preventing lateral creep of the multi-strand cable 11.
  • the punch 33 is then applied, figure 5 on the multi-strand cable 11 through a well of the flange 32 so as to locally deform the multi-strand cable 11 by stamping so as to flow through the lumen 5 towards the clearances of the matrix 31.
  • the tip of the punch 33 has a width less than the distance between the convex edges of the light to partially penetrate into this light while leaving room for the strands between the punch and the convex edges.
  • the flange 32 and the matrix 31 are joined together and form a chamber around the convex surface so that the material of the multi-strand cable flows in the direction of and around the the convex surface, figure 6 .
  • the material of the strands of cable may have a ductility greater than or equal to that of the support.
  • the cable is made of copper and the brass support.
  • the malleability of the cable may advantageously be chosen to be greater than the malleability of the support.
  • stranded cables lies in the improvement of the flexibility of the cable and the reduction of the mass thereof compared to an equivalent single-strand cable.
  • the forces to be used to compact and flow the material of the strands can be substantially reduced to reach values below 350DaN when assembling a conductive cable multi-strand with a diameter of about 1.8 mm for low-voltage copper. This is compared to a force of about 700DaN needed to clinch the same wire.
  • the tool can then be integrated into a manual gripper, with or without assistance.
  • the strands of the multi-strand cable are heated beforehand so as to be more ductile during the assembly operation.
  • the strands are previously compacted so as to improve the cohesion between them.
  • This second variant is combinable with the first variant, the compaction then taking place before the heating operation, or even the compaction can generate the necessary preliminary heating.
  • the assembly obtained is heated so as to improve the strength of the aggregate formed by the compressed strands.
  • the support comprises a closed or open light.
  • closed it comprises, for example, four convex edges to form a parallelepiped. It is then usually pierced in the support.
  • the light When the light is open, it comprises, in an example of parallelepiped shape, three convex edges and an opening on one of the edges.
  • this type of light is used when it is necessary that it is located at the edge of the support. In the latter case the support does not close one side of the light.
  • the assembly of the invention remains very efficient when a cable is assembled to a support comprising a open light especially because a mold, otherwise called a matrix, retains the material around the three edges of the light and allows compaction of the latter following its deformation.
  • the light can in fact be of varied shape, for example in T or V. The choice is then made according to the connection to be made to optimize the strength of the assembly.
  • the support comprises a tongue 71 which is folded over the multi-strand cable to serve as flank or die. By remaining in place, it also participates in the mechanical strength by providing a clinching function.
  • the support is itself a multi-strand wire shaped by the matrix.
  • the support may have flat, cylindrical or tubular shapes.
  • the tool is then adapted to the shape of the support so as to guide the material of the strands of the cable and optimize its distribution on the edges of the light.
  • this method of assembly can be used to assemble 2 or more son, all stranded or some stranded and other single strand, with or without support by adapting the tool to the assembly to achieve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wire Processing (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Insulated Conductors (AREA)
  • Installation Of Indoor Wiring (AREA)

Claims (14)

  1. Mechanische Anordnung eines mehrsträngigen Kabels (11), umfassend eine Vielzahl von Strängen, und eines Trägers (1), wobei die Vielzahl der Stränge auf der Höhe des Trägers in einer ersten Richtung ausgerichtet sind, und der Träger eine Öffnung aufweist, die in einer Ebene senkrecht zu der ersten Richtung zwei konvexe Ränder bildet, die einander gegenüberliegen, wobei die Anordnung der Vielzahl von Strängen auf dem Träger (1) durch Ziehen der Vielzahl der Stränge (11) um konvexe Ränder (10) erfolgt, das zu einer Verformung eines Teils der Vielzahl von Strängen um die konvexen Ränder führt, dadurch gekennzeichnet, dass das Ziehen durch ein Werkzeug erfolgt, umfassend eine Matrix (31), eine Flankenpresse (32) und einen Stempel (33) auf dem Teil der Stränge, die zwischen den Rändern der Öffnung positioniert sind, so dass ein Teil der Vielzahl der gezogenen Stränge durch die Öffnung (5) hindurchgeht und um die konvexen Ränder auf den Seiten derselben überragt, und dass durch das Ziehen, das die Stränge zusammen komprimiert hat, die Stränge miteinander und mit dem Träger durch Kriechen verbunden werden.
  2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass die gezogenen Stränge in dieser Ebene eine X-Form annehmen, die die konvexen Ränder einspannt.
  3. Anordnung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass das mehrsträngige Kabel eine Duktilität größer oder gleich jener des Trägers aufweist.
  4. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Träger eine flache, röhrenförmige oder zylindrische Form hat, wobei die Zone der Öffnung lokal einer Zone gleichgesetzt werden kann, die eine Mittelebene parallel zur ersten Richtung umfasst.
  5. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das mehrsträngige Kabel (1) ein verkabelter Leiter ist.
  6. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Träger eine Lasche umfasst, die über den konvexen Rand umlegbar ist, um einen Teil des mehrsträngigen Kabels teilweise zu umgeben.
  7. Mehrsträngiges Kabel, umfassend mindestens eine Anordnung nach einem der Ansprüche 1 bis 6.
  8. Verfahren zum mechanischen Zusammenbau eines mehrsträngigen Kabels (11), umfassend eine Vielzahl von Strängen, die in eine erste Richtung auf Höhe eines Trägers (1) ausgerichtet sind, der eine Öffnung aufweist, die in einer Ebene senkrecht zu der ersten Richtung zwei konvexe Ränder bildet, die einander gegenüberliegen, entsprechend Anspruch 1, dadurch gekennzeichnet, dass ein Nietvorgang mit Hilfe eines ersten Werkzeugs durchgeführt wird, das eine Matrix (31), eine Flankenpresse (32) und einen Stempel (33) umfasst und es ermöglicht:
    - das mehrsträngige Kabel in einer Zone entsprechend der Öffnung zu ziehen, damit ein Teil desselben in die Öffnung eindringt und um die konvexen Ränder läuft;
    - den Teil des mehrsträngigen Kabels, der um die Öffnung gezogen ist, zu verdichten;
    - das mehrsträngige Kabel in der gezogenen Zone kriechen zu lassen, so dass die Stränge miteinander und mit dem Träger verbunden werden.
  9. Verfahren zum Zusammenbau nach Anspruch 8, dadurch gekennzeichnet, dass der Träger in der Matrix (31) auf der Höhe der Öffnung angeordnet ist, und dass der Stempel (33) auf das mehrsträngige Kabel in der Zone der Öffnung des Trägers angelegt wird.
  10. Verfahren zum Zusammenbau nach Anspruch 9, dadurch gekennzeichnet, dass es die Flankenpresse (32) ermöglicht, den Stempel zu führen, um das Ziehen durchzuführen, und einen Teil des mehrsträngigen Kabels auf der Seite des Trägers gegenüber dem mehrsträngigen Kabel zu verdichten und kriechen zu lassen.
  11. Verfahren zum Zusammenbau nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass der Nietvorgang des mehrsträngigen Kabels auf dem Träger eine Optimierung der Verteilung des verdichteten Materials des mehrsträngigen Kabels an den konvexen Rändern mit Hilfe eines Abdrucks, der in der Matrix gebildet ist, umfasst, deren Abmessungen dazu vorgesehen sind, das vom mehrsträngigen Kabel kommende Material auf der Oberfläche der konvexen Ränder zu verteilen.
  12. Verfahren zum Zusammenbau nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass ein Vorgang der Vorerhitzung des mehrsträngigen Kabels vor dem Nietvorgang erfolgt.
  13. Verfahren zum Zusammenbau nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, dass ein Vorgang der Vorverdichtung des mehrsträngigen Kabels vor jedem Vorgang erfolgt.
  14. Verfahren zum Zusammenbau nach einem der Ansprüche 8 bis 13, dadurch gekennzeichnet, dass ein Vorgang der Nacherhitzung der Anordnung nach dem Nietvorgang erfolgt.
EP13728447.7A 2012-05-11 2013-05-07 Mechanische anordnung mittels autogener nieten Not-in-force EP2847825B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1254310A FR2990568B1 (fr) 2012-05-11 2012-05-11 Assemblage mecanique par rivetage autogene
PCT/FR2013/051027 WO2013167846A1 (fr) 2012-05-11 2013-05-07 Assemblage mecanique par rivetage autogene

Publications (2)

Publication Number Publication Date
EP2847825A1 EP2847825A1 (de) 2015-03-18
EP2847825B1 true EP2847825B1 (de) 2015-06-03

Family

ID=48614044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13728447.7A Not-in-force EP2847825B1 (de) 2012-05-11 2013-05-07 Mechanische anordnung mittels autogener nieten

Country Status (8)

Country Link
US (2) US20150107104A1 (de)
EP (1) EP2847825B1 (de)
KR (1) KR20150013724A (de)
CN (1) CN104584327B (de)
ES (1) ES2545800T3 (de)
FR (1) FR2990568B1 (de)
IN (1) IN2014DN10337A (de)
WO (1) WO2013167846A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019211473A1 (de) 2019-07-31 2021-02-04 Te Connectivity Germany Gmbh Zwischenprodukt und Verfahren zum Vercrimpen eines elektrischen Leiters

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038958A (en) * 1959-06-08 1962-06-12 Amp Inc Electrical connection
DE1123378B (de) * 1961-01-25 1962-02-08 Amp Inc Elektrische Verbindung
US3878318A (en) * 1973-01-02 1975-04-15 Amp Inc Aluminum electrical connection
US4976132A (en) * 1983-12-30 1990-12-11 Amp Incorporated Dies for crimping an electrical connection
IT230349Y1 (it) * 1993-07-12 1999-06-02 Gallone Cesare Terminale di connessione per apparecchi elettrici
US5566432A (en) * 1993-08-09 1996-10-22 Orscheln Company Apparatus for terminating wire or other elongated generally rigid elements
TW273055B (de) * 1994-06-27 1996-03-21 Seiko Epson Corp
FR2736471B1 (fr) 1995-07-04 1997-09-12 Legrand Sa Ensemble connecte, son procede de realisation, et appareil electrique comportant au moins un tel ensemble connecte
WO2008070673A2 (en) * 2006-12-04 2008-06-12 Nanonexus, Inc. Construction structures and manufacturing processes for integrated circuit wafer probe card assemblies
DE102006013347B4 (de) * 2006-03-23 2022-12-22 Kostal Kontakt Systeme Gmbh Steckverbinderanordnung
FR2935550B1 (fr) * 2008-09-03 2010-10-15 Legrand Snc Assemblage electrique et mecanique obtenu par rivetage autogene
EP2458694B1 (de) * 2010-11-24 2013-06-26 Tyco Electronics Nederland B.V. Anschlussanordnung und Verfahren zum Verbinden einer Leiters an ein Anschlusselement

Also Published As

Publication number Publication date
US20170178769A1 (en) 2017-06-22
FR2990568B1 (fr) 2014-05-02
CN104584327A (zh) 2015-04-29
US10395801B2 (en) 2019-08-27
CN104584327B (zh) 2017-03-08
WO2013167846A1 (fr) 2013-11-14
IN2014DN10337A (de) 2015-08-07
ES2545800T3 (es) 2015-09-15
US20150107104A1 (en) 2015-04-23
EP2847825A1 (de) 2015-03-18
FR2990568A1 (fr) 2013-11-15
KR20150013724A (ko) 2015-02-05

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