EP2514039B1 - Method for securing a wiring harness - Google Patents

Method for securing a wiring harness Download PDF

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Publication number
EP2514039B1
EP2514039B1 EP10808997.0A EP10808997A EP2514039B1 EP 2514039 B1 EP2514039 B1 EP 2514039B1 EP 10808997 A EP10808997 A EP 10808997A EP 2514039 B1 EP2514039 B1 EP 2514039B1
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EP
European Patent Office
Prior art keywords
insert
sheath
electrical
une
securing
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.)
Active
Application number
EP10808997.0A
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German (de)
French (fr)
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EP2514039A2 (en
Inventor
Laurent Touroude
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SC2N SAS
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SC2N SAS
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Publication of EP2514039A2 publication Critical patent/EP2514039A2/en
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Publication of EP2514039B1 publication Critical patent/EP2514039B1/en
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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5845—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the strain relief being achieved by molding parts around cable and 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
    • H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
    • 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
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/24—Assembling by moulding on contact members
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • 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
    • H01R4/02—Soldered or welded connections
    • H01R4/023—Soldered or welded connections between cables or wires and terminals
    • 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
    • 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
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded 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
    • 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

Definitions

  • the present invention relates to a method of fixing an electric harness. Its main purpose is to secure the operation of various equipment of a motor vehicle.
  • the field of the invention is, in general, that of the protection of connections or electrical connections, and more particularly of the protection of electrical harnesses.
  • a motor vehicle is equipped with electrical harnesses, making it possible to connect different equipment or electrical and / or electronic elements of a vehicle to each other.
  • An electrical harness includes at least one electrical wire and a sheath protecting said electrical wire.
  • the electrical wires of the various beams are fixed by soldering, crimping or the like, to an electrical circuit, for making electronic connections.
  • the electronic connections are likely to be in the safety equipment, for example in an airbag, or in optional equipment, for example in a car radio.
  • an electrical connection may be damaged by a user.
  • said beams may be torn off with the weight of said part.
  • the connections connecting the harness to the electrical circuit are then deteriorated.
  • Such deterioration of the connections is visible or not.
  • the beams are torn off, and the user can repair or repair the connection.
  • the connection no longer works.
  • the user may replace the defective part in the vehicle, and the function to be provided by the room in question will not be filled, which may, in some cases, pose security problems. For example, for a faulty electrical connection on airbag type safety equipment, there is a risk of not opening the airbag considered during an impact.
  • a first system in which the electric wire is passed through an "S" shaped conduit having numerous curvatures.
  • the large number of curvatures combined with low value radii of curvature considerably reduce the user's constraints on the connection connecting the electrical harness to an electrical circuit.
  • a second system is to put a connector to ensure the connection between the harness and the electrical circuit.
  • the connector is automatically inserted into an electrical circuit, before being soldered to the electrical circuit.
  • the thus welded connector becomes then inseparable from the electrical circuit.
  • the beams are then connected to the connector. When a user holds the part by the beams, the connector remains welded to the electrical circuit.
  • a third system used in electrical cords of household appliances, consists of overmolding plastic around a bundle and an insert.
  • the electrical wire of the beam is welded to the insert, and the sheath of said beam remains outside.
  • Overmoulding of the assembly, beam and insert, is performed in a mold.
  • a plastic material surrounds the sheath and the insert.
  • the fixing method according to the invention, and the associated device make it possible to solve the problems that have just been mentioned.
  • a solution is proposed for improving the maintenance of the beams at their connection on an electric circuit; for this purpose, in the invention, it is proposed in particular to add a toothed portion on an insert receiving said beam.
  • the device according to the invention has several advantages, particularly in economic terms by limiting the number of repairs and / or replacement to be made, but also in terms of security thanks to the reliability of the connections.
  • the present invention also relates to a device for holding a motor vehicle beam, comprising an electric wire and a sheath in an insert, obtained by the method according to the invention, and wherein the insert comprises a toothed portion in support on the sheath of the beam.
  • the figure 1 represents a sectional view of the device according to the invention before a crimping step 310.
  • the electrical wire 120 is made of an electrically conductive material.
  • the sheath 110 for not conducting electricity is made of an insulating material.
  • the insert 200 is advantageously a deformable material, made of the same material as the electric wire 120, said material being electrically conductive; advantageously, the insert 200 is therefore a metal insert.
  • the toothed portion 220 of the insert 200 is located in this example under the sheath 110.
  • the toothed portion 220 has teeth directed towards the sheath 110.
  • the teeth are distributed over a defined length and have a defined depth according to the sheath thickness 110. For example, it is proposed a tooth distribution over five millimeters in length, and a depth of 0.5 millimeters for a 1.5 millimeter thick sheath.
  • the insert 200 may comprise a toothed circular portion surrounding the sheath 110.
  • the bundle 100 then passes through the toothed circular portion so that the sheath 110 is at the circular toothed portion and the wire 120 is located above the insert 200.
  • the electrical wire 120 provides an electrical connection with the insert 200.
  • the insert 200 can be connected to a printed circuit not shown.
  • the figure 2 represents a sectional view of the device according to the invention after the crimping step 310.
  • Crimping step 310 allows the toothed portion 220 and the sheath 110 to maintain a clamping position during the life of a workpiece 700.
  • the figure 4 represents a perspective view of a part 700 made by the method according to the invention.
  • the part 700 is shown after the crimping step 310.
  • the openings 500 left after removal of the movable elements are visible following the overmolding operation 312 of the plastic.
  • Overmolding 600 thus traps the electrical wire 120 and the insert 200, to protect the crimping 400 and thus the electrical connection, and traps the sheath 110 and the toothed portion 220 in the clamping position.
  • the prolonged holding of the clamping position advantageously increases the difficulty in tearing the beam 100, and thus protects the electrical connection.

Description

La présente invention se rapporte à un procédé de fixation d'un faisceau électrique. Il a essentiellement pour but de sécuriser le fonctionnement de différents équipements d'un véhicule automobile.The present invention relates to a method of fixing an electric harness. Its main purpose is to secure the operation of various equipment of a motor vehicle.

Le domaine de l'invention est, d'une façon générale celui de la protection de connexions ou de liaisons électriques, et plus particulièrement de la protection de faisceaux électriques.The field of the invention is, in general, that of the protection of connections or electrical connections, and more particularly of the protection of electrical harnesses.

Un véhicule automobile est équipé de faisceaux électriques, permettant de connecter différents équipements ou éléments électriques et/ou électroniques d'un véhicule entre eux. Un faisceau électrique comporte au moins un fil électrique et une gaine protégeant ledit fil électrique. Les fils électriques des différents faisceaux sont fixés par une soudure, un sertissage ou autre, à un circuit électrique, pour réaliser des connexions électroniques. Les connexions électroniques sont susceptibles de se situer dans les équipements de sécurité, par exemple dans un airbag, ou dans des équipements optionnels, par exemple dans un autoradio.A motor vehicle is equipped with electrical harnesses, making it possible to connect different equipment or electrical and / or electronic elements of a vehicle to each other. An electrical harness includes at least one electrical wire and a sheath protecting said electrical wire. The electrical wires of the various beams are fixed by soldering, crimping or the like, to an electrical circuit, for making electronic connections. The electronic connections are likely to be in the safety equipment, for example in an airbag, or in optional equipment, for example in a car radio.

Une connexion électrique risque cependant d'être détériorée par un utilisateur. Par exemple, si l'utilisateur maintient une pièce du véhicule par les faisceaux, lesdits faisceaux risquent d'être arrachés avec le poids de ladite pièce. Les connexions reliant le faisceau au circuit électrique sont alors détériorées. Une telle détérioration des connexions est visible ou non. Lorsque la détérioration est visible, les faisceaux sont arrachés, et l'utilisateur peut alors réparer ou faire réparer la connexion. Cependant quand la détérioration n'est pas visible, le faisceau est toujours dans la pièce, mais la connexion ne fonctionne plus. Dans ce cas précis, l'utilisateur risque de replacer la pièce défectueuse dans le véhicule, et la fonction sensée être assurée par la pièce considérée ne sera pas remplie, ce qui peut, dans certains cas, poser des problèmes de sécurité. Par exemple, pour une connexion électrique défectueuse sur un équipement de sécurité de type airbag, on risque de s'exposer à une non ouverture de l'airbag considéré lors d'un impact.However, an electrical connection may be damaged by a user. For example, if the user holds a part of the vehicle by the beams, said beams may be torn off with the weight of said part. The connections connecting the harness to the electrical circuit are then deteriorated. Such deterioration of the connections is visible or not. When the deterioration is visible, the beams are torn off, and the user can repair or repair the connection. However, when the deterioration is not visible, the beam is still in the room, but the connection no longer works. In this case, the user may replace the defective part in the vehicle, and the function to be provided by the room in question will not be filled, which may, in some cases, pose security problems. For example, for a faulty electrical connection on airbag type safety equipment, there is a risk of not opening the airbag considered during an impact.

Ainsi, la robustesse d'une connexion électrique est donc primordiale pour le fonctionnement des éléments associés à la connexion considérée, et elle peut même dans certains cas, être une garantie importante de sécurité pour un utilisateur.Thus, the robustness of an electrical connection is therefore essential for the operation of the elements associated with the connection in question, and it can even in some cases be an important guarantee of security for a user.

Différents systèmes permettant de réduire les efforts, les contraintes exercées par l'utilisateur sur les faisceaux existent.Different systems to reduce the efforts, the constraints exerted by the user on the beams exist.

On connait par exemple un premier système consistant à faire passer le fil électrique par une conduite en forme de « S » comportant de nombreuses courbures. Le nombre important de courbures combiné à des rayons de courbure de faible valeur réduisent considérablement les contraintes de l'utilisateur sur la connexion reliant le faisceau électrique à un circuit électrique.For example, a first system is known in which the electric wire is passed through an "S" shaped conduit having numerous curvatures. The large number of curvatures combined with low value radii of curvature considerably reduce the user's constraints on the connection connecting the electrical harness to an electrical circuit.

L'inconvénient majeur de ce système est l'encombrement qu'il occasionne, encombrement qui est difficilement compatible avec les exigences des constructeurs automobiles qui demandent à limiter l'encombrement des différents équipements présents, ceux-ci étant toujours plus nombreux.The major disadvantage of this system is the size it causes, congestion which is hardly compatible with the requirements of car manufacturers who ask to limit the size of the various equipment present, the latter being always more numerous.

Un deuxième système consiste à poser un connecteur pour assurer la connexion entre le faisceau électrique et le circuit électrique. Le connecteur est inséré automatiquement sur un circuit électrique, avant d'être soudé sur le circuit électrique. Le connecteur ainsi soudé devient alors indissociable du circuit électrique. Les faisceaux sont ensuite branchés sur le connecteur. Lorsqu'un utilisateur maintient la pièce par les faisceaux, le connecteur reste soudé au circuit électrique.A second system is to put a connector to ensure the connection between the harness and the electrical circuit. The connector is automatically inserted into an electrical circuit, before being soldered to the electrical circuit. The thus welded connector becomes then inseparable from the electrical circuit. The beams are then connected to the connector. When a user holds the part by the beams, the connector remains welded to the electrical circuit.

L'inconvénient majeur de ce système est que les faisceaux électriques risquent toujours d'être détériorés, voire arrachés, au mépris du fonctionnement de la connexion électrique ; un autre problème inhérent à ce deuxième système est le coût engendré.The major disadvantage of this system is that the electrical harnesses can always be damaged or ripped, in defiance of the operation of the electrical connection; another problem inherent in this second system is the cost generated.

Un troisième système, utilisé dans les cordons électriques des appareils ménagers, consiste à surmouler de la matière plastique autour d'un faisceau et d'un insert. Le fil électrique du faisceau est soudé sur l'insert, et la gaine dudit faisceau reste à l'extérieur. Un surmoulage de l'ensemble, faisceau et insert, est effectué dans un moule. Une matière plastique vient entourer la gaine et l'insert.A third system, used in electrical cords of household appliances, consists of overmolding plastic around a bundle and an insert. The electrical wire of the beam is welded to the insert, and the sheath of said beam remains outside. Overmoulding of the assembly, beam and insert, is performed in a mold. A plastic material surrounds the sheath and the insert.

L'inconvénient majeur de ce système est que le procédé de surmoulage entraine des contraintes sur la liaison électrique. La partie de la gaine qui est surmoulée, glisse dans la matière plastique et se plisse. La soudure du fil électrique n'est alors plus correctement protégée. Dans le document US 2005/0159047 A1 , un insert comporte une partie dentée qui est sortie sur la gaine du câble. L'insert et le câble sont ensuite surmoulés.The major disadvantage of this system is that the overmolding process causes constraints on the electrical connection. The part of the sheath that is overmolded, slides into the plastic and folds. The soldering of the electric wire is then no longer properly protected. In the document US 2005/0159047 A1 , an insert has a toothed portion which is output on the sheath of the cable. The insert and the cable are then overmoulded.

Le procédé de fixation selon l'invention, et le dispositif associé, permettent de résoudre les problèmes qui viennent d'être évoqués. Dans l'invention, on propose une solution pour améliorer le maintien des faisceaux au niveau de leur connexion sur un circuit électrique ; à cet effet, dans l'invention, on propose notamment d'ajouter une partie dentée sur un insert recevant ledit faisceau.The fixing method according to the invention, and the associated device, make it possible to solve the problems that have just been mentioned. In the invention, a solution is proposed for improving the maintenance of the beams at their connection on an electric circuit; for this purpose, in the invention, it is proposed in particular to add a toothed portion on an insert receiving said beam.

Le dispositif selon l'invention comporte plusieurs avantages, notamment en terme économique en limitant le nombre de réparations et/ou de remplacement à réaliser, mais aussi en terme de sécurité grâce à la fiabitisation des connexions.The device according to the invention has several advantages, particularly in economic terms by limiting the number of repairs and / or replacement to be made, but also in terms of security thanks to the reliability of the connections.

L'invention concerne donc essentiellement un procédé de fixation d'un faisceau électrique de véhicule automobile comportant un fil électrique et une gaine, ledit procédé comportant une étape de maintien, par soudage ou sertissage, du fil électrique sur un insert, caractérisé en ce que le procédé comporte une étape de sertissage dans laquelle sont réalisées les opérations suivantes :

  • une opération de serrage dans laquelle la gaine est serrée contre l'insert, au moins au niveau d'une partie dentée dudit insert ;
  • une opération de surmoulage dans laquelle un surmoulage est réalisé autour d'au moins une partie du faisceau et de l'insert.
The invention therefore essentially relates to a method for fixing a motor vehicle electrical harness comprising an electric wire and a sheath, said method comprising a step of holding, by welding or crimping, the electric wire on an insert, characterized in that the method comprises a crimping step in which the following operations are performed:
  • a clamping operation in which the sheath is clamped against the insert, at least at a toothed portion of said insert;
  • an overmolding operation in which an overmoulding is performed around at least a portion of the bundle and the insert.

Outre les caractéristiques principales qui viennent d'être mentionnées dans le paragraphe précédent, le procédé selon l'invention peut présenter une ou plusieurs caractéristiques supplémentaires parmi les suivantes :

  • l'opération de surmoulage est réalisée pendant l'opération de serrage ;
  • le serrage de la gaine est assuré par un premier élément mobile et un deuxième élément mobile;
  • le premier élément mobile est en appui sur la gaine, et le deuxième élément mobile est en appui sur l'insert ;
  • les deux éléments mobiles sont en appuis sur l'insert.
In addition to the main features which have just been mentioned in the preceding paragraph, the method according to the invention may have one or more additional characteristics among the following:
  • the overmoulding operation is performed during the clamping operation;
  • clamping of the sheath is provided by a first movable member and a second movable member;
  • the first movable element bears on the sheath, and the second movable element bears on the insert;
  • the two movable elements are in support on the insert.

Les différentes caractéristiques supplémentaires du procédé selon l'invention, dans la mesure où elles ne s'excluent pas mutuellement, sont combinées selon toutes les possibilités d'association pour aboutir à différents exemples de mise en oeuvre du procédé selon l'invention.The various additional features of the method according to the invention, insofar as they are not mutually exclusive, are combined according to all the possibilities of association to lead to different examples of implementation of the method according to the invention.

La présente invention a également pour objet un dispositif de maintien d'un faisceau de véhicule automobile, comportant un fil électrique et une gaine dans un insert, obtenu par le procédé selon l'invention, et dans lequel l'insert comporte une partie dentée en appui sur la gaine du faisceau.The present invention also relates to a device for holding a motor vehicle beam, comprising an electric wire and a sheath in an insert, obtained by the method according to the invention, and wherein the insert comprises a toothed portion in support on the sheath of the beam.

Le dispositif selon l'invention peut également présenter une ou plusieurs des caractéristiques supplémentaires parmi les suivantes :

  • la partie dentée comporte des dents d'une taille fonction de l'épaisseur de la gaine ;
  • le dispositif comporte un surmoulage présentant au moins une ouverture au niveau de la partie dentée ;
  • la taille de la partie dentée est supérieure à la taille de l'ouverture.
The device according to the invention may also have one or more of the following additional characteristics:
  • the toothed portion has teeth of a size depending on the thickness of the sheath;
  • the device comprises an overmolding having at least one opening at the toothed portion;
  • the size of the toothed portion is greater than the size of the opening.

Les différentes caractéristiques supplémentaires du dispositif selon l'invention, dans la mesure où elles ne s'excluent pas mutuellement, sont combinées selon toutes les possibilités d'association pour aboutir à différents exemples de réalisation du dispositif selon l'invention.The various additional features of the device according to the invention, insofar as they do not exclude each other, are combined according to all the possibilities of association to lead to different embodiments of the device according to the invention.

L'invention et ses différentes applications seront mieux comprises à la lecture de la description qui suit et à l'examen des figures qui l'accompagnent.The invention and its various applications will be better understood by reading the following description and examining the figures that accompany it.

Celles-ci ne sont présentées qu'à titre indicatif et nullement limitatif de l'invention. Les figures montrent :

  • à la figure 1, une représentation d'une vue en coupe du dispositif selon l'invention avant une étape de sertissage ;
  • à la figure 2, une représentation d'une vue en coupe du dispositif selon l'invention après une étape de sertissage ;
  • à la figure 3, une représentation d'un diagramme d'un exemple de mise en oeuvre du procédé selon l'invention ;
  • à la figure 4, une représentation d'une vue en perspective d'une pièce réalisée par le procédé selon l'invention.
These are presented only as an indication and in no way limitative of the invention. The figures show:
  • to the figure 1 , a representation of a sectional view of the device according to the invention before a crimping step;
  • to the figure 2 , a representation of a sectional view of the device according to the invention after a crimping step;
  • to the figure 3 a representation of a diagram of an exemplary implementation of the method according to the invention;
  • to the figure 4 , a representation of a perspective view of a part made by the method according to the invention.

Les différents éléments apparaissant sur différentes figures auront, sauf précision contraire, conservés les mêmes références. Les dimensions mentionnées sont, sauf précision contraire, exprimées en millimètres.The different elements appearing in different figures will, unless otherwise specified, retain the same references. The dimensions mentioned are, unless otherwise specified, expressed in millimeters.

La figure 1 représente une vue en coupe du dispositif selon l'invention avant une étape de sertissage 310.The figure 1 represents a sectional view of the device according to the invention before a crimping step 310.

Le dispositif selon l'invention comporte notamment les différents éléments suivants :

  • un faisceau 100, comportant un fil électrique 120 et une gaine 110 ;
  • un insert 200 comportant une partie dentée 220.
The device according to the invention comprises in particular the following elements:
  • a beam 100 comprising an electric wire 120 and a sheath 110;
  • an insert 200 having a toothed portion 220.

Le fil électrique 120 est réalisé dans un matériau électriquement conducteur. La gaine 110 permettant de ne pas conduire l'électricité, est réalisée dans un matériau isolant. L'insert 200 est avantageusement un matériau déformable, réalisé dans le même matériau que le fil électrique 120, ledit matériau étant électriquement conducteur ; avantageusement, l'insert 200 est donc un insert métallique. La partie dentée 220 de l'insert 200 est située dans cet exemple sous la gaine 110. La partie dentée 220 comporte des dents dirigées vers la gaine 110. Les dents sont réparties sur une longueur définie et ont une profondeur définie en fonction de l'épaisseur de la gaine 110. Par exemple, on propose une répartition des dents sur cinq millimètres de longueur, et une profondeur de 0.5 millimètre pour une gaine d'épaisseur 1,5 millimètre.The electrical wire 120 is made of an electrically conductive material. The sheath 110 for not conducting electricity, is made of an insulating material. The insert 200 is advantageously a deformable material, made of the same material as the electric wire 120, said material being electrically conductive; advantageously, the insert 200 is therefore a metal insert. The toothed portion 220 of the insert 200 is located in this example under the sheath 110. The toothed portion 220 has teeth directed towards the sheath 110. The teeth are distributed over a defined length and have a defined depth according to the sheath thickness 110. For example, it is proposed a tooth distribution over five millimeters in length, and a depth of 0.5 millimeters for a 1.5 millimeter thick sheath.

Dans un autre mode de réalisation l'insert 200 peut comporter une partie circulaire dentée, entourant la gaine 110. Le faisceau 100 traverse alors la partie circulaire dentée afin que la gaine 110 soit au niveau de la partie circulaire dentée et que le fil électrique 120 soit situé au-dessus de l'insert 200.In another embodiment, the insert 200 may comprise a toothed circular portion surrounding the sheath 110. The bundle 100 then passes through the toothed circular portion so that the sheath 110 is at the circular toothed portion and the wire 120 is located above the insert 200.

Le fil électrique 120 permet d'assurer une liaison électrique avec l'insert 200. L'insert 200 peut être relié à un circuit imprimé non représenté.The electrical wire 120 provides an electrical connection with the insert 200. The insert 200 can be connected to a printed circuit not shown.

La figure 2, décrite conjointement avec le diagramme de la figure 3, représente une vue en coupe du dispositif selon l'invention après l'étape de sertissage 310.The figure 2 , described in conjunction with the diagram of the figure 3 , represents a sectional view of the device according to the invention after the crimping step 310.

Sur la figure 2, on retrouve notamment les éléments présents à la figure 1, notamment un insert 200, comportant une partie dentée 220, et un faisceau 100, comportant un fil électrique 120 et une gaine 110.On the figure 2 , we find in particular the elements present at the figure 1 , in particular an insert 200, comprising a toothed portion 220, and a beam 100, comprising an electric wire 120 and a sheath 110.

Le procédé selon l'invention comprend notamment deux étapes :

  • Une première étape, dite de maintien 300, consiste à maintenir une liaison électrique entre le fil électrique 120 du faisceau 100 et l'insert 200. La liaison électrique est réalisée par un soudage 400 permettant de conduire l'électricité entre le faisceau 100 et l'insert 200. Dans un autre mode de réalisation le soudage 400 est remplacé par un sertissage.
  • Une deuxième étape dite de sertissage 310, consiste à fixer de manière permanente l'insert 200 sur la gaine 110, par une déformation de la gaine 110 sur la partie dentée 220. L'étape de sertissage 310 comporte avantageusement deux opérations :
    • ■ Une opération de serrage 311, qui fait intervenir un premier élément mobile et un deuxième élément mobile, non représentés, dont la fonction consiste à serrer l'insert 200 contre la gaine 110. Le premier élément mobile est ainsi en appui sur la gaine 110 et le deuxième élément mobile est en appui sur la partie dentée 220 de l'insert 200. Lorsque les deux éléments mobiles sont en appui, contraignant la gaine 110 sur la partie dentée 220, l'insert 200 et la gaine 110 sont en position de serrage.
    • ■ Une opération de surmoulage 312, qui est avantageusement réalisée pendant l'opération de serrage 311. L'opération de surmoulage 312 consiste à réaliser un surmoulage 600, notamment de matière plastique, autour de la gaine 110, de l'insert 200 et des éléments mobiles.
The process according to the invention comprises in particular two stages:
  • A first step, called holding 300, consists in maintaining an electrical connection between the electrical wire 120 of the bundle 100 and the insert 200. The electrical connection is made by a welding 400 making it possible to conduct the electricity between the bundle 100 and the In another embodiment, the welding 400 is replaced by a crimping.
  • A second so-called crimping step 310 consists in permanently fixing the insert 200 on the sheath 110 by deformation of the sheath 110 on the toothed portion 220. The crimping step 310 advantageously comprises two operations:
    • ■ A clamping operation 311, which involves a first movable element and a second movable element, not shown, the function of which consists in clamping the insert 200 against the sheath 110. The first movable element is thus supported on the sheath 110 and the second movable element bears on the toothed portion 220 of the insert 200. When the two movable elements are in abutment, forcing the sheath 110 on the toothed portion 220, the insert 200 and the sheath 110 are in the position of Tightening.
    • ■ An overmoulding operation 312, which is advantageously carried out during the clamping operation 311. The overmoulding operation 312 consists in producing an overmoulding 600, in particular of plastic material, around the sheath 110, the insert 200 and the moving parts.

Après l'opération de surmoulage 312, lorsque les éléments mobiles sont desserrés, puis retirés, deux ouvertures 500 apparaissent dans le surmoulage 600. Les ouvertures 500 sont situées au niveau de la gaine 110 et au niveau de la partie dentée 220. Ainsi, l'étape de sertissage 310 permet, à la partie dentée 220 et à la gaine 110, de garder une position de serrage pendant la durée de vie d'une pièce 700.After the overmolding operation 312, when the movable elements are loosened and then withdrawn, two openings 500 appear in the overmolding 600. The openings 500 are located at the sheath 110 and at the toothed portion 220. Thus, Crimping step 310 allows the toothed portion 220 and the sheath 110 to maintain a clamping position during the life of a workpiece 700.

La figure 4 représente une vue en perspective d'une pièce 700 réalisée par le procédé selon l'invention.The figure 4 represents a perspective view of a part 700 made by the method according to the invention.

La pièce 700 est représentée après l'étape de sertissage 310. Les ouvertures 500 laissés après le retrait des éléments mobiles sont visibles suite à l'opération de surmoulage 312 de la matière plastique. Le surmoulage 600 emprisonne ainsi le fil électrique 120 et l'insert 200, permettant de protéger le sertissage 400 et donc la liaison électrique, et emprisonne la gaine 110 et la partie dentée 220 en position de serrage. Le maintien prolongé de la position de serrage augment avantageusement la difficulté à réaliser un arrachement du faisceau 100, et protège ainsi la connexion électrique.The part 700 is shown after the crimping step 310. The openings 500 left after removal of the movable elements are visible following the overmolding operation 312 of the plastic. Overmolding 600 thus traps the electrical wire 120 and the insert 200, to protect the crimping 400 and thus the electrical connection, and traps the sheath 110 and the toothed portion 220 in the clamping position. The prolonged holding of the clamping position advantageously increases the difficulty in tearing the beam 100, and thus protects the electrical connection.

Claims (6)

  1. Method for securing a motor vehicle wiring harness (100), said harness comprising at least one electrical wire (120) and one sheath (110), said method comprising a step of securing (300), by weld or crimping, the electrical wire (120) on an insert (200), characterized in that the method comprises a crimping step (310) in which the following operations are performed:
    - a clamping operation (311) during which the sheath (110) is clamped against the insert (200), at least at the level of a toothed part (220) of said insert (200);
    - an overmoulding operation (312), performed during the clamping operation (311), in which an overmoulding (600) is produced around at least a part of the harness (100) and of the insert (200).
  2. Method according to Claim 1, characterized in that the clamping of the sheath (110) is ensured by a first movable element and a second movable element.
  3. Method according to Claim 2, characterized in that, during the clamping operation, the first movable element is bearing on the sheath (110), and the second movable element is bearing on the insert (200).
  4. Method according to Claim 2, characterized in that the two movable elements are bearing on the insert (200) .
  5. Device for securing a motor vehicle wiring harness (100), comprising:
    - an electrical wire (120) secured by welding or crimping on an insert (200),
    - a sheath (110) clamped against the insert (200), characterized in that the insert (200) notably comprises a toothed part (220) bearing on the sheath (110) of the harness (100) and in that the device comprises an overmoulding (600) securing the sheath (110) and the toothed part (220) in the clamping position and having at least one opening at the level of the toothed part (220).
  6. Device according to Claim 5, characterized in that the size of the toothed part (220) is greater than the size of the opening (500).
EP10808997.0A 2009-12-17 2010-12-16 Method for securing a wiring harness Active EP2514039B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0906123A FR2954602B1 (en) 2009-12-17 2009-12-17 METHOD FOR FIXING AN ELECTRICAL BEAM
PCT/FR2010/000842 WO2011080417A2 (en) 2009-12-17 2010-12-16 Method for securing a wiring harness

Publications (2)

Publication Number Publication Date
EP2514039A2 EP2514039A2 (en) 2012-10-24
EP2514039B1 true EP2514039B1 (en) 2014-06-18

Family

ID=42315236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10808997.0A Active EP2514039B1 (en) 2009-12-17 2010-12-16 Method for securing a wiring harness

Country Status (3)

Country Link
EP (1) EP2514039B1 (en)
FR (1) FR2954602B1 (en)
WO (1) WO2011080417A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2982429B1 (en) * 2011-11-04 2013-11-15 Sagemcom Energy & Telecom Sas ELECTRICAL CONDUCTION DEVICE AND METHOD FOR MANUFACTURING SUCH AN ORGAN
FR3013518B1 (en) * 2013-11-18 2018-01-05 Psa Automobiles Sa. ELECTRICAL CONDUCTION DEVICE WITH ELECTRICAL CONDUCTORS WITH EXTREMITS COUPLED AND BEHIND IN TWO SUB-PARTS OF A HOUSING
CN112563847B (en) * 2020-11-20 2022-02-11 江苏创立电器设备有限公司 Portable instant-melting type cable joint connecting device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524084A (en) * 1975-06-30 1977-01-12 Matsushita Electric Works Ltd Cord end molding method
US5470238A (en) * 1994-02-09 1995-11-28 Intercon Systems, Inc. Shielded ribbon cable electrical connector assembly and method
JP4074097B2 (en) * 2001-04-27 2008-04-09 モレックス インコーポレーテッド plug
JP4198342B2 (en) * 2001-08-24 2008-12-17 日本圧着端子製造株式会社 Shielded cable electrical connector, connector body thereof, and method of manufacturing the electrical connector

Also Published As

Publication number Publication date
EP2514039A2 (en) 2012-10-24
FR2954602A1 (en) 2011-06-24
WO2011080417A2 (en) 2011-07-07
FR2954602B1 (en) 2012-10-05
WO2011080417A3 (en) 2011-08-25

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