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EP3118932A1 - Electrical connecting member for electrical wiring elements - Google Patents

Electrical connecting member for electrical wiring elements Download PDF

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Publication number
EP3118932A1
EP3118932A1 EP16178906.0A EP16178906A EP3118932A1 EP 3118932 A1 EP3118932 A1 EP 3118932A1 EP 16178906 A EP16178906 A EP 16178906A EP 3118932 A1 EP3118932 A1 EP 3118932A1
Authority
EP
European Patent Office
Prior art keywords
tube
section
electrical
electrical wiring
wiring element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16178906.0A
Other languages
German (de)
French (fr)
Other versions
EP3118932B1 (en
Inventor
Cédric MARTY
Frédéric LHUGUET
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.)
Vm Industries
Original Assignee
Vm Industries
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Publication date
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Priority to SI201630976T priority Critical patent/SI3118932T1/en
Publication of EP3118932A1 publication Critical patent/EP3118932A1/en
Application granted granted Critical
Publication of EP3118932B1 publication Critical patent/EP3118932B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors

Definitions

  • the invention relates to an electrical connection member for connecting electrical wiring elements.
  • a motor vehicle generally includes several electrical appliances, including electronic. In order to connect these devices together, it is known to use one or more bundles of electric cables. These electric cables comprise electrical conductors, generally made of copper. In order to reduce the weight of the beam (s), it is envisaged to replace the copper conductors with aluminum conductors.
  • Copper-alloy open lugs are suitable for crimping a copper conductor to another copper conductor.
  • this type of lug is not suitable for connecting them by crimping aluminum conductors, because the aluminum has a lower electrical conductivity than copper. It follows that it would be necessary to modify the shape and dimensions of the lugs so that they could be suitable for aluminum cables, which would be very expensive.
  • the lugs were open aluminum are also not suitable, since they pose problems of electrolysis and reliability in terms of electrical conduction over time.
  • Tubular lugs are commonly used to connect copper conductors. But these tubular lugs can not have a complex shape, which is sometimes preferable to optimize several aspects related to the beam, such as the size in the vehicle.
  • An object of the invention is to overcome these problems by providing a means for making a sealed connection between two electrical wiring elements, and this with simple means and usable for copper conductors and aluminum conductors.
  • a cable according to claim 1 is provided.
  • the electrical connection member makes it possible not to have to resort to ultrasonic welding which poses the problems identified above.
  • the dimensions of the member depend solely on the diameter of the driver which is crimped. As a result, a conductor diameter, generally selected from a range of standardized values, corresponds to a particular member. It is therefore also possible to identify standard ranges for the organ, which helps to make the organ simple to use.
  • the electrical wiring element being a first electrical wiring element
  • the cable further comprises a second electrical wiring element connected to the sealing member.
  • connection between the member and a wiring lug is thus also sealed.
  • the tube has a cross-section with a "U" profile in the section.
  • the electrical connection member is in one piece.
  • the electrical connection member is thus simple to manufacture.
  • the tube is continuous.
  • the tube comprises a cuprous alloy.
  • an inner surface of the annular end is coated with an anti-corrosion agent.
  • the section is located at one end of the tube.
  • the electrical connection member thus makes it possible to connect an electrical conductor with a terminal to be closed.
  • the tube has two annular ends.
  • the electrical connection member makes it possible to connect between them two electrical conductors and a terminal to be opened.
  • a junction with three branches is made, which makes it possible to produce bundles of cables with a complex structure.
  • the first electrical wiring element is coated with a sealing sheath.
  • the sealing sheath is made of a heat-shrinkable polymer.
  • the sheath compresses the conductor, which contributes to improving the sealing of the connection between the conductor and the electrical connection member.
  • an inner surface of the sheath is coated with an adhesive.
  • a cable bundle is also provided which comprises at least one cable as defined in the foregoing.
  • the invention also provides a method according to claim 12.
  • a sealed connection is thus made between the first and second electrical wiring elements by means of a simple method suitable for mass production.
  • the second wiring element is formed by a pod to be opened or a splice to be opened.
  • FIG. 1 We have illustrated in figure 1 an electrical connection member 2 belonging to an electric cable according to a first embodiment of the invention.
  • This member 2 which forms a connecting tube is intended to connect two electrical wiring elements.
  • the member 2 comprises an elongate tube 4 with a circular cross section and a main axis 6 shown in FIG. figure 1 .
  • This is a continuous tube and not a band wound to form a tube, which improves the sealing and mechanical characteristics of the tube 4.
  • the tube 4 has at least one end or free end section of annular shape 8 giving access to an inner housing of the tube 4.
  • the end section 8 has a cross section of generally circular shape, but it can be expected that this cross section is for example oval, rectangular, square or any other form.
  • the tube 4 also has at least one deformed section 10 in which the section of the tube 4 is deformed so that it consists of several portions contiguous to one another or to each other.
  • the internal volume of the tube 4 in the end section 8 is greater than the internal volume of the tube 4 in the deformed section 10.
  • the tube 4 has in the deformed section 10 a cross-section with a profile of "U”, but it can be expected that the profile has the shape of any of the profiles illustrated in FIG. figure 9 , among which are "V", “O”, semicircle, square, “W”, spiral, "Y”, “H”, "X”, "U” shaped profiles end and in "U” with folded branches.
  • the deformed section 10 is present on the member 2 before it is crimped.
  • the deformed section 10 is located at a free end of the tube 4.
  • the shape of the deformed section 10 is obtained by locally crushing the tube 4 on itself in a direction perpendicular to its main axis 6 and in FIG. giving the crushed part a U-shaped profile. It will be seen in the following that the shapes of the end 8 and the deformed section 10 are interesting for the use that is made of the organ 2.
  • the tube 4 also has a transition section 11 connecting the end section 8 and the deformed section 10 so that an outer surface of the tube 4 does not have a projecting angle.
  • the tube 4 consists of the end section 8, the transition section 11 and the deformed section 10.
  • the electrical connection member 2 is in one piece.
  • the electrical connection member 2 is metallic.
  • the tube 4 here comprises an alloy, for example a cuprous alloy such as the Cu-DHP alloy or the Cu-ETP alloy respectively marketed under the names "Wieland-K19" and "Wieland-K32" by the company Wieland. In this way, the mechanical properties and oxidation resistance of the member 2 are known and controlled. It is thus possible to evaluate the life of the organ 2.
  • the electrical connection member 2 is intended to electrically connect two electrical wiring elements.
  • an electrical conductor 12 is crimped into the annular end 8 of the tube 4.
  • This electrical conductor 12 comprises several strands 14 here made of aluminum. However, it can be provided that these strands 14 are made of another electrically conductive material, such as copper for example.
  • the crimping of the electrical conductor 12 in the electrical connection member 2 is carried out in the following manner: the electrical conductor 12 is inserted into the tube 4 by the free end 8 so that the electrical conductor 12 reaches a crimping zone 17 of the member 2, then the tube 4 is compressed on itself in its crimping zone 17 in a direction perpendicular to the main axis 6 of the tube 4. This compression makes it possible to produce a sealed electrical connection between the electrical conductor 12 and the member 2.
  • the crimping zone 17 forms part of the end section 8.
  • an inner surface of the free end section 8 is coated with an anticorrosive agent, possibly electrically conductive. In this way, once the conductor 12 crimped in the free end section 8, the anticorrosive agent protects the conductor 12 from corrosion.
  • the strands 14 are coated with a sealing sheath 16 made of a heat-shrinkable material, for example a polyolefin sheath marketed under the name "PM4-A” by the company ACLP or a sheath sold under the name "Atum”. by the company Raychem.
  • a sealing sheath 16 made of a heat-shrinkable material, for example a polyolefin sheath marketed under the name "PM4-A" by the company ACLP or a sheath sold under the name "Atum”. by the company Raychem.
  • the combination of the annular shape of the end 8 of the tube 4 and the sealing sheath 16 improves the sealing of the connection between the conductor 12 and the member 2. Indeed, there is in this way no effect called “pumping" of moisture that can occur due to pressure variations in the conductor 12, or rising moisture capillarity in the conductor 12.
  • a lug was opened 18 is crimped on the deformed section 10 of the tube 4, as this is more precisely visible on the figure 3 .
  • the lug 18 comprises for example bronze or brass.
  • the lug 18 comprises an orifice 20 for fixing it and a crimping device having two flanges 22.
  • the flanges 22 are crimped to the deformed section 10 of the tube 4.
  • the deformed section 10 is introduced between the flanges 22 and these flaps are folded. last on this section 10, the free edge of the wings 22 being housed at the bottom of the deformed section 10.
  • the shape of the deformed section 10 of the tube 4 allows a crimping whose compacting rate is sufficiently important to ensure the sealing of the connection between the lug 18 and the body 2.
  • connection by the member 2 between the conductor 12 and the lug 18 is made particularly airtight and watertight, more generally to any element likely to oxidize the portion of the conductor 12 housed in 2.
  • the method generally makes it possible to obtain an immersion seal under a pressure of up to 3 bar, ie 3.10 5 Pa. It is understood that the presence of the anti-corrosion agent on the inner surface of the section of free end 8 of the member 2 is optional. It would serve especially in case of rupture of the seal, for example caused during a shock suffered by the body 2.
  • the dimensions of the electrical connection member 2 depend on the diameter of the conductor 12 and do not depend on the properties of the lug 18. It is therefore possible to match a model of electrical connection member 2 to a specific diameter of the driver. In other words, it is possible to standardize the dimensions of the member 2. Furthermore, the properties of the lug 18 are independent of the fact that the conductor 12 comprises copper or aluminum.
  • FIG 5 We have illustrated in figure 5 an electrical connection member 2 'belonging to an electric cable according to a second embodiment of the invention.
  • This member 2 ' which also forms a junction tube differs from that of the first mode in that it comprises a tube 4 having two free ends 8 of annular shape. The deformed section 10 is located between these two free ends 8 and this time forms a median section.
  • the member 2 'of this second embodiment allows the crimping of two electrical conductors 12 at each of the annular free ends 8 and a terminal 18 was opened on the section 10.
  • the electric cable obtained following the connection of the two electrical conductors 12 and the lug was opened 18 is illustrated in the Figures 6 to 8 . It is observed that the member 2 'makes it possible to produce bundles of cables of complex shape.
  • the electrical connection member may be made of any material having satisfactory electrical and mechanical properties to allow the transmission of electric current and to give it a sufficiently long service life.
  • lug was opened by any type of lug can be crimped on the deformed section of the tube of the electrical connection member, for example a suitably shaped copper tube.

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  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Cable Accessories (AREA)

Abstract

Ce câble électrique comprend :
- un élément de câblage électrique, et
- un organe de connexion électrique (2) serti à l'élément de câblage électrique de manière étanche et apte à connecter l'élément de câblage électrique à un autre élément de câblage électrique.This electric cable includes:
an element of electrical wiring, and
- An electrical connection member (2) crimped to the electrical wiring element sealingly and adapted to connect the electrical wiring element to another electrical wiring element.

L'organe (2) comprend un tube (4) présentant au moins une extrémité de forme annulaire (8) donnant accès à un logement interne du tube (4), et au moins un tronçon (10) dans lequel une section du tube (4) est déformée de sorte qu'elle comprend plusieurs portions accolées l'une à l'autre ou les unes aux autres.

Figure imgaf001
The member (2) comprises a tube (4) having at least one annular end (8) giving access to an inner housing of the tube (4), and at least one section (10) in which a section of the tube (4) 4) is deformed so that it comprises several portions contiguous to one another or to each other.
Figure imgaf001

Description

L'invention concerne un organe de connexion électrique pour connecter des éléments de câblage électrique.The invention relates to an electrical connection member for connecting electrical wiring elements.

Un véhicule automobile comprend généralement plusieurs appareils électriques, notamment électroniques. Afin de connecter ces appareils entre eux, il est connu d'utiliser un ou plusieurs faisceaux de câbles électriques. Ces câbles électriques comprennent des conducteurs électriques, généralement réalisés en cuivre. Dans le but de réduire le poids du ou des faisceaux, il est envisagé de remplacer les conducteurs en cuivre par des conducteurs en aluminium.A motor vehicle generally includes several electrical appliances, including electronic. In order to connect these devices together, it is known to use one or more bundles of electric cables. These electric cables comprise electrical conductors, generally made of copper. In order to reduce the weight of the beam (s), it is envisaged to replace the copper conductors with aluminum conductors.

Il existe plusieurs moyens permettant de relier les câbles entre eux pour former un faisceau ou de connecter les câbles à des appareils électriques. Les moyens les plus classiques consistent en l'utilisation de cosses de câblage. Plusieurs types de cosses de câblage existent.There are several ways to connect the cables together to form a bundle or connect the cables to electrical devices. The most conventional means consist in the use of wiring lugs. Several types of wiring lugs exist.

Les cosses à fut ouvert en alliage cuivreux conviennent pour connecter par sertissage un conducteur en cuivre à un autre conducteur en cuivre. En revanche, ce type de cosse ne convient pas pour connecter entre eux par sertissage des conducteurs en aluminium, car l'aluminium présente une conductivité électrique inférieure à celle du cuivre. Il s'ensuit qu'il serait nécessaire de modifier la forme et les dimensions des cosses pour qu'elles puissent convenir à des câbles en aluminium, ce qui serait très coûteux. Les cosses à fut ouvert en aluminium ne conviennent pas non plus, puisqu'elles posent des problèmes d'électrolyse et de fiabilité en terme de conduction électrique dans le temps.Copper-alloy open lugs are suitable for crimping a copper conductor to another copper conductor. However, this type of lug is not suitable for connecting them by crimping aluminum conductors, because the aluminum has a lower electrical conductivity than copper. It follows that it would be necessary to modify the shape and dimensions of the lugs so that they could be suitable for aluminum cables, which would be very expensive. The lugs were open aluminum are also not suitable, since they pose problems of electrolysis and reliability in terms of electrical conduction over time.

Les cosses tubulaires sont utilisées de manière courante pour connecter des conducteurs en cuivre. Mais ces cosses tubulaires ne peuvent pas avoir une forme complexe, ce qui est parfois préférable afin d'optimiser plusieurs aspects liés au faisceau, tels que l'encombrement dans le véhicule.Tubular lugs are commonly used to connect copper conductors. But these tubular lugs can not have a complex shape, which is sometimes preferable to optimize several aspects related to the beam, such as the size in the vehicle.

Afin de pallier ce problème lié à la forme complexe de la cosse, il est connu de connecter un conducteur en aluminium à une cosse adaptée au moyen d'une soudure à ultrasons. Mais cette technique est relativement coûteuse et délicate à mettre en place dans le cadre d'une production en masse. De plus, des problèmes d'étanchéité peuvent survenir dans le cas où le faisceau est situé dans un environnement agressif, par exemple dans un compartiment moteur.In order to overcome this problem related to the complex shape of the lug, it is known to connect an aluminum conductor to a lug adapted by means of an ultrasonic weld. But this technique is relatively expensive and difficult to implement as part of a mass production. In addition, sealing problems may arise in the case where the beam is located in an aggressive environment, for example in an engine compartment.

Un but de l'invention est de pallier ces problèmes en fournissant un moyen permettant de réaliser une connexion étanche entre deux éléments de câblage électrique, et ce avec des moyens simples et utilisables pour des conducteurs en cuivre et pour des conducteurs en aluminium.An object of the invention is to overcome these problems by providing a means for making a sealed connection between two electrical wiring elements, and this with simple means and usable for copper conductors and aluminum conductors.

A cet effet, on prévoit selon l'invention un câble selon la revendication 1.For this purpose, according to the invention, a cable according to claim 1 is provided.

Ainsi, il est possible de sertir un conducteur électrique dans l'extrémité annulaire du tube, la forme annulaire de l'extrémité assurant l'étanchéité de la connexion entre le conducteur et l'organe de connexion électrique. Il est possible de sertir une cosse à fut ouvert sur le tronçon déformé du tube. La forme du tronçon déformé permet d'obtenir un sertissage à taux de compactage élevé, ce qui garantit l'étanchéité de la connexion entre la cosse et l'organe de connexion électrique. Que le conducteur électrique soit réalisé en aluminium ou en cuivre, l'organe assure une bonne connexion électrique entre le conducteur et la cosse.Thus, it is possible to crimp an electrical conductor in the annular end of the tube, the annular shape of the end sealing the connection between the conductor and the electrical connection member. It is possible to crimp a pod to was opened on the deformed section of the tube. The shape of the deformed section makes it possible to obtain a crimping at high compacting rate, which guarantees the sealing of the connection between the lug and the electrical connection member. Whether the electrical conductor is made of aluminum or copper, the member ensures a good electrical connection between the driver and the terminal.

De plus, l'organe de connexion électrique permet de ne pas avoir à recourir à un soudage par ultrasons qui pose les problèmes identifiés plus haut. Enfin, les dimensions de l'organe dépendent uniquement du diamètre du conducteur qui y est serti. De ce fait, à un diamètre du conducteur, généralement choisi parmi une gamme de valeurs standardisées, correspond un organe particulier. Il est donc également possible d'identifier des gammes standards pour l'organe, ce qui participe à rendre l'organe simple à utiliser.In addition, the electrical connection member makes it possible not to have to resort to ultrasonic welding which poses the problems identified above. Finally, the dimensions of the member depend solely on the diameter of the driver which is crimped. As a result, a conductor diameter, generally selected from a range of standardized values, corresponds to a particular member. It is therefore also possible to identify standard ranges for the organ, which helps to make the organ simple to use.

Enfin, grâce à la connexion étanche réalisée par l'organe, il n'est pas nécessaire de prévoir un élément supplémentaire uniquement dédié à rendre étanche la connexion entre les premier et deuxième éléments de connexion électrique. On simplifie ainsi la connexion électrique étanche de ces deux éléments.Finally, thanks to the sealed connection made by the member, it is not necessary to provide an additional element solely dedicated to sealing the connection between the first and second electrical connection elements. This simplifies the sealed electrical connection of these two elements.

Avantageusement, l'élément de câblage électrique étant un premier élément de câblage électrique, le câble comprend en outre un deuxième élément de câblage électrique connecté à l'organe de manière étanche.Advantageously, the electrical wiring element being a first electrical wiring element, the cable further comprises a second electrical wiring element connected to the sealing member.

La connexion entre l'organe et une cosse de câblage est ainsi également rendue étanche.The connection between the member and a wiring lug is thus also sealed.

Avantageusement, le tube a une section transversale à profil en « U » dans le tronçon. Avantageusement, l'organe de connexion électrique est d'un seul tenant.Advantageously, the tube has a cross-section with a "U" profile in the section. Advantageously, the electrical connection member is in one piece.

L'organe de connexion électrique est ainsi simple à fabriquer.The electrical connection member is thus simple to manufacture.

Avantageusement, le tube est continu.Advantageously, the tube is continuous.

On améliore de la sorte l'étanchéité conférée par le tube ainsi que ses caractéristiques mécaniques, par exemple par rapport à un tube qui serait formé par l'enroulement d'une bande. En effet, la surface de liaison des extrémités de la bande formerait à la fois une zone dans laquelle de l'air ou de l'eau pourrait s'infiltrer et une zone de concentration de contraintes mécaniques.This improves the sealing imparted by the tube as well as its mechanical characteristics, for example with respect to a tube which would be formed by the winding of a strip. Indeed, the bonding surface of the ends of the strip would form both an area in which air or water could infiltrate and a zone of concentration of mechanical stresses.

Avantageusement, le tube comprend un alliage cuivreux.Advantageously, the tube comprises a cuprous alloy.

De cette manière, les propriétés de résistance à l'oxydation et au vieillissement mécanique de l'organe de connexion électrique sont connues et maîtrisées. Cela permet de déterminer la durée de vie de l'organe.In this way, the properties of resistance to oxidation and mechanical aging of the electrical connection member are known and controlled. This helps to determine the life of the organ.

Avantageusement, une surface interne de l'extrémité de forme annulaire est revêtue d'un agent anticorrosion.Advantageously, an inner surface of the annular end is coated with an anti-corrosion agent.

On assure ainsi une protection contre l'oxydation du premier conducteur en cas de détérioration de l'étanchéité de la connexion.This ensures protection against oxidation of the first conductor in case of deterioration of the sealing of the connection.

Selon un premier mode de réalisation de l'invention, le tronçon est situé à une extrémité du tube.According to a first embodiment of the invention, the section is located at one end of the tube.

L'organe de connexion électrique permet ainsi de connecter un conducteur électrique avec une cosse à fut fermé.The electrical connection member thus makes it possible to connect an electrical conductor with a terminal to be closed.

Selon un deuxième mode de réalisation de l'invention, le tube présente deux extrémités de forme annulaire.According to a second embodiment of the invention, the tube has two annular ends.

Le tronçon déformé étant situé entre les deux extrémités de forme annulaire, l'organe de connexion électrique permet de connecter entre eux deux conducteurs électriques et une cosse à fut ouvert. En d'autres termes, on réalise une jonction à trois branches, ce qui permet de réaliser des faisceaux de câbles à structure complexe.The deformed section being located between the two ends of annular shape, the electrical connection member makes it possible to connect between them two electrical conductors and a terminal to be opened. In other words, a junction with three branches is made, which makes it possible to produce bundles of cables with a complex structure.

Avantageusement, le premier élément de câblage électrique est revêtu d'une gaine d'étanchéité.Advantageously, the first electrical wiring element is coated with a sealing sheath.

On améliore ainsi l'étanchéité de la connexion entre le conducteur et l'organe avec des moyens simples.This improves the sealing of the connection between the conductor and the body with simple means.

Avantageusement, la gaine d'étanchéité est réalisée dans un polymère thermorétractable.Advantageously, the sealing sheath is made of a heat-shrinkable polymer.

Ainsi, sous l'effet de la chaleur à laquelle on l'expose lors de sa mise en place, la gaine comprime le conducteur, ce qui contribue à améliorer l'étanchéité de la connexion entre le conducteur et l'organe de connexion électrique.Thus, under the effect of the heat to which it is exposed during its installation, the sheath compresses the conductor, which contributes to improving the sealing of the connection between the conductor and the electrical connection member.

Avantageusement, une surface interne de la gaine est enduite d'une colle.Advantageously, an inner surface of the sheath is coated with an adhesive.

On améliore ainsi la fixation de la gaine au conducteur.This improves the fixing of the sheath to the driver.

On prévoit également selon l'invention un faisceau de câbles qui comprend au moins un câble tel que défini dans ce qui précède.According to the invention, a cable bundle is also provided which comprises at least one cable as defined in the foregoing.

On prévoit aussi selon l'invention un procédé selon la revendication 12.The invention also provides a method according to claim 12.

On réalise ainsi une connexion étanche entre les premier et deuxième éléments de câblage électrique au moyen d'un procédé simple et adapté à une production en masse.A sealed connection is thus made between the first and second electrical wiring elements by means of a simple method suitable for mass production.

Avantageusement, le deuxième élément de câblage est formé par une cosse à fut ouvert ou par une épissure à fut ouvert.Advantageously, the second wiring element is formed by a pod to be opened or a splice to be opened.

On va maintenant décrire plusieurs modes de réalisation de l'invention à l'appui des dessins annexés sur lesquels :

  • la figure 1 est une vue en perspective d'un organe de connexion électrique appartenant à un câble électrique selon un premier mode de réalisation de l'invention,
  • la figure 2 est une vue en perspective du câble électrique selon le premier mode de réalisation de l'invention muni de l'organe de connexion électrique de la figure 1,
  • la figure 3 est une vue du câble de la figure 2 illustrant la connexion entre une cosse à fut ouvert et l'organe de connexion électrique,
  • la figure 4 est une vue éclatée du câble de la figure 2,
  • la figure 5 est une vue en perspective d'un organe de connexion électrique appartenant à un câble électrique selon un deuxième mode de réalisation de l'invention,
  • la figure 6 est une vue éclatée du câble électrique selon le deuxième mode de réalisation de l'invention muni de l'organe de connexion électrique de la figure 5,
  • les figures 7 et 8 sont des vues en perspective sous deux angles différents du câble électrique de la figure 6 une fois les opérations de sertissage effectuées, et
  • la figure 9 illustre différentes formes que peut prendre le tronçon déformé de l'organe de connexion électrique de la figure 1 ou de la figure 5.
Several embodiments of the invention will now be described in support of the appended drawings in which:
  • the figure 1 is a perspective view of an electrical connection member belonging to an electric cable according to a first embodiment of the invention,
  • the figure 2 is a perspective view of the electric cable according to the first embodiment of the invention provided with the electrical connection member of the figure 1 ,
  • the figure 3 is a cable view of the figure 2 illustrating the connection between a pod to was opened and the electrical connection member,
  • the figure 4 is an exploded view of the cable from the figure 2 ,
  • the figure 5 is a perspective view of an electrical connection member belonging to an electric cable according to a second embodiment of the invention,
  • the figure 6 is an exploded view of the electric cable according to the second embodiment of the invention provided with the electrical connection member of the figure 5 ,
  • the Figures 7 and 8 are perspective views from two different angles of the electrical cable of the figure 6 once the crimping operations are done, and
  • the figure 9 illustrates different forms that can take the deformed section of the electrical connection member of the figure 1 or from figure 5 .

On a illustré en figure 1 un organe de connexion électrique 2 appartenant à un câble électrique selon un premier mode de réalisation de l'invention. Cet organe 2 qui forme un tube de jonction est destiné à connecter deux éléments de câblage électrique. L'organe 2 comprend un tube allongé 4 à section générale transversale circulaire et d'axe principal 6 représenté sur la figure 1. Il s'agit d'un tube continu et non pas une bande enroulée pour former un tube, ce qui permet d'améliorer les caractéristiques d'étanchéité et mécaniques du tube 4.We have illustrated in figure 1 an electrical connection member 2 belonging to an electric cable according to a first embodiment of the invention. This member 2 which forms a connecting tube is intended to connect two electrical wiring elements. The member 2 comprises an elongate tube 4 with a circular cross section and a main axis 6 shown in FIG. figure 1 . This is a continuous tube and not a band wound to form a tube, which improves the sealing and mechanical characteristics of the tube 4.

Le tube 4 présente au moins une extrémité ou tronçon d'extrémité libre de forme annulaire 8 donnant accès à un logement interne du tube 4. Ici, le tronçon d'extrémité 8 présente une section transversale de forme générale circulaire, mais on peut prévoir que cette section transversale soit par exemple ovale, rectangulaire, carrée ou de toute autre forme.The tube 4 has at least one end or free end section of annular shape 8 giving access to an inner housing of the tube 4. Here, the end section 8 has a cross section of generally circular shape, but it can be expected that this cross section is for example oval, rectangular, square or any other form.

Le tube 4 présente également au moins un tronçon déformé 10 dans lequel la section du tube 4 est déformée de sorte qu'elle est constituée de plusieurs portions accolées l'une à l'autre ou les unes aux autres. En d'autres termes, le volume interne du tube 4 dans le tronçon d'extrémité 8 est supérieur au volume interne du tube 4 dans le tronçon déformé 10. Ici, le tube 4 a dans le tronçon déformé 10 une section transversale à profil en « U », mais on peut prévoir que le profil ait la forme de l'un quelconque des profils illustrés en figure 9, parmi lesquels figurent des profils en « V », en « O », en demi-cercle, carré, en « W », en spirale, en « Y », en « H », en « X », en « U » fin et en « U » à branches rabattues. Il convient de noter que le tronçon déformé 10 est présent sur l'organe 2 avant qu'il ne fasse l'objet d'un sertissage.The tube 4 also has at least one deformed section 10 in which the section of the tube 4 is deformed so that it consists of several portions contiguous to one another or to each other. In other words, the internal volume of the tube 4 in the end section 8 is greater than the internal volume of the tube 4 in the deformed section 10. Here, the tube 4 has in the deformed section 10 a cross-section with a profile of "U", but it can be expected that the profile has the shape of any of the profiles illustrated in FIG. figure 9 , among which are "V", "O", semicircle, square, "W", spiral, "Y", "H", "X", "U" shaped profiles end and in "U" with folded branches. It should be noted that the deformed section 10 is present on the member 2 before it is crimped.

Dans ce premier mode de réalisation, le tronçon déformé 10 est situé à une extrémité libre du tube 4. La forme du tronçon déformé 10 est obtenue en écrasant localement le tube 4 sur lui-même suivant une direction perpendiculaire à son axe principal 6 et en donnant à la partie écrasée un profil en « U ». On verra dans la suite que les formes de l'extrémité 8 et du tronçon déformé 10 sont intéressantes pour l'utilisation qui est faite de l'organe 2.In this first embodiment, the deformed section 10 is located at a free end of the tube 4. The shape of the deformed section 10 is obtained by locally crushing the tube 4 on itself in a direction perpendicular to its main axis 6 and in FIG. giving the crushed part a U-shaped profile. It will be seen in the following that the shapes of the end 8 and the deformed section 10 are interesting for the use that is made of the organ 2.

Le tube 4 présente également un tronçon de transition 11 reliant le tronçon d'extrémité 8 et le tronçon déformé 10 de sorte qu'une surface externe du tube 4 ne présente pas d'angle saillant. Le tube 4 est constitué du tronçon d'extrémité 8, du tronçon de transition 11 et du tronçon déformé 10.The tube 4 also has a transition section 11 connecting the end section 8 and the deformed section 10 so that an outer surface of the tube 4 does not have a projecting angle. The tube 4 consists of the end section 8, the transition section 11 and the deformed section 10.

L'organe de connexion électrique 2 est d'un seul tenant. L'organe de connexion électrique 2 est métallique. Le tube 4 comprend ici un alliage, par exemple un alliage cuivreux tel que l'alliage Cu-DHP ou l'alliage Cu-ETP respectivement commercialisés sous les appellations « Wieland-K19 » et « Wieland-K32 » par la société Wieland. De la sorte, les propriétés mécaniques et de résistance à l'oxydation l'organe 2 sont connues et maîtrisées. On peut ainsi évaluer la durée de vie de l'organe 2.The electrical connection member 2 is in one piece. The electrical connection member 2 is metallic. The tube 4 here comprises an alloy, for example a cuprous alloy such as the Cu-DHP alloy or the Cu-ETP alloy respectively marketed under the names "Wieland-K19" and "Wieland-K32" by the company Wieland. In this way, the mechanical properties and oxidation resistance of the member 2 are known and controlled. It is thus possible to evaluate the life of the organ 2.

Comme cela est illustré en figure 2, l'organe de connexion électrique 2 est destiné à connecter électriquement deux éléments de câblage électrique.As illustrated in figure 2 , the electrical connection member 2 is intended to electrically connect two electrical wiring elements.

En l'espèce, un conducteur électrique 12 est serti dans l'extrémité annulaire 8 du tube 4. Ce conducteur électrique 12 comprend plusieurs brins 14 ici réalisés en aluminium. On peut toutefois prévoir que ces brins 14 soient réalisés dans un autre matériau conducteur d'électricité, comme du cuivre par exemple. Le sertissage du conducteur électrique 12 dans l'organe de connexion électrique 2 est réalisé de la manière suivante : on insère le conducteur électrique 12 dans le tube 4 par l'extrémité libre 8 de sorte que le conducteur électrique 12 atteigne une zone de sertissage 17 de l'organe 2, puis on comprime le tube 4 sur lui-même en sa zone de sertissage 17 suivant une direction perpendiculaire à l'axe principal 6 du tube 4. Cette compression permet de réaliser une connexion électrique étanche entre le conducteur électrique 12 et l'organe 2. La zone de sertissage 17 forme une partie du tronçon d'extrémité 8.In this case, an electrical conductor 12 is crimped into the annular end 8 of the tube 4. This electrical conductor 12 comprises several strands 14 here made of aluminum. However, it can be provided that these strands 14 are made of another electrically conductive material, such as copper for example. The crimping of the electrical conductor 12 in the electrical connection member 2 is carried out in the following manner: the electrical conductor 12 is inserted into the tube 4 by the free end 8 so that the electrical conductor 12 reaches a crimping zone 17 of the member 2, then the tube 4 is compressed on itself in its crimping zone 17 in a direction perpendicular to the main axis 6 of the tube 4. This compression makes it possible to produce a sealed electrical connection between the electrical conductor 12 and the member 2. The crimping zone 17 forms part of the end section 8.

On peut prévoir qu'une surface interne du tronçon d'extrémité libre 8 est revêtue d'un agent anticorrosion, éventuellement conducteur d'électricité. De la sorte, une fois le conducteur 12 serti dans le tronçon d'extrémité libre 8, l'agent anticorrosion protège le conducteur 12 de la corrosion.It can be provided that an inner surface of the free end section 8 is coated with an anticorrosive agent, possibly electrically conductive. In this way, once the conductor 12 crimped in the free end section 8, the anticorrosive agent protects the conductor 12 from corrosion.

Les brins 14 sont revêtus d'une gaine d'étanchéité 16 réalisée dans un matériau thermorétractable, par exemple une gaine en polyoléfine commercialisée sous l'appellation « PM4-A » par la société ACLP ou une gaine commercialisée sous l'appellation « Atum » par la société Raychem. La combinaison de la forme annulaire de l'extrémité 8 du tube 4 et de la gaine d'étanchéité 16 permet d'améliorer l'étanchéité de la connexion entre le conducteur 12 et l'organe 2. En effet, il n'y a de la sorte pas d'effet dit de « pompage » d'humidité qui peut survenir du fait de variations de pression dans le conducteur 12, ni de remontée d'humidité par capillarité dans le conducteur 12.The strands 14 are coated with a sealing sheath 16 made of a heat-shrinkable material, for example a polyolefin sheath marketed under the name "PM4-A" by the company ACLP or a sheath sold under the name "Atum". by the company Raychem. The combination of the annular shape of the end 8 of the tube 4 and the sealing sheath 16 improves the sealing of the connection between the conductor 12 and the member 2. Indeed, there is in this way no effect called "pumping" of moisture that can occur due to pressure variations in the conductor 12, or rising moisture capillarity in the conductor 12.

Une cosse à fut ouvert 18 est sertie sur le tronçon déformé 10 du tube 4, comme cela est plus précisément visible sur la figure 3. La cosse 18 comprend par exemple du bronze ou du laiton. La cosse 18 comprend un orifice 20 permettant sa fixation et un fut de sertissage présentant deux ailes 22. Les ailes 22 sont serties au tronçon déformé 10 du tube 4. Pour cela, on introduit le tronçon déformé 10 entre les ailes 22 et on rabat ces dernières sur ce tronçon 10, le bord libre des ailes 22 étant logé au fond du tronçon déformé 10. La forme du tronçon déformé 10 du tube 4 permet de réaliser un sertissage dont le taux de compactage est suffisamment important pour assurer l'étanchéité de la connexion entre la cosse 18 et l'organe 2.A lug was opened 18 is crimped on the deformed section 10 of the tube 4, as this is more precisely visible on the figure 3 . The lug 18 comprises for example bronze or brass. The lug 18 comprises an orifice 20 for fixing it and a crimping device having two flanges 22. The flanges 22 are crimped to the deformed section 10 of the tube 4. For this, the deformed section 10 is introduced between the flanges 22 and these flaps are folded. last on this section 10, the free edge of the wings 22 being housed at the bottom of the deformed section 10. The shape of the deformed section 10 of the tube 4 allows a crimping whose compacting rate is sufficiently important to ensure the sealing of the connection between the lug 18 and the body 2.

On remarque ainsi que la connexion entre la cosse 18, l'organe 2 et le conducteur 12 est uniquement effectuée par des opérations de sertissage simples et rapides. En effet, pour connecter les deux éléments de câblage, c'est-à-dire le conducteur 12 et la cosse 18, à l'organe 2, on met en oeuvre le procédé suivant à partir des éléments en l'état illustré à la figure 4 :

  • on sertit le conducteur 12 dans l'extrémité de forme annuaire 8 du tube 4 de l'organe de connexion électrique 2, et
  • on sertit la cosse 18 sur le tronçon déformé 10 du tube 4 de l'organe de connexion électrique 2.
It is thus noted that the connection between the lug 18, the member 2 and the conductor 12 is only performed by simple and fast crimping operations. Indeed, to connect the two wiring elements, that is to say the conductor 12 and the lug 18 to the member 2, the following method is implemented from the elements in the state illustrated in FIG. figure 4 :
  • the conductor 12 is crimped into the end 8 of the tube 4 of the electrical connection member 2, and
  • the lug 18 is crimped on the deformed section 10 of the tube 4 of the electrical connection member 2.

On évite ainsi d'avoir à recourir à des opérations de soudure plus onéreuses et plus longues. De plus, il n'est pas nécessaire de prévoir une étape supplémentaire ou un élément supplémentaire spécifiquement destiné à rendre la connexion étanche, puisque les deux sertissages permettent déjà de rendre la connexion étanche. Grâce à ce procédé, la connexion par l'organe 2 entre le conducteur 12 et la cosse 18 est rendue notamment étanche à l'air et à l'eau, plus généralement à tout élément susceptible d'oxyder la partie du conducteur 12 logée dans l'organe 2. Le procédé permet en général d'obtenir une étanchéité en immersion sous une pression allant jusqu'à 3 bar, soit 3.105 Pa. On comprend que la présence de l'agent anticorrosion sur la surface interne du tronçon d'extrémité libre 8 de l'organe 2 est optionnelle. Il servirait notamment en cas de rupture de l'étanchéité, par exemple occasionnée lors d'un choc subi par l'organe 2.This avoids having to resort to more expensive and longer welding operations. In addition, it is not necessary to provide an additional step or an additional element specifically intended to make the connection tight, since the two crimps already make it possible to make the connection watertight. Thanks to this method, the connection by the member 2 between the conductor 12 and the lug 18 is made particularly airtight and watertight, more generally to any element likely to oxidize the portion of the conductor 12 housed in 2. The method generally makes it possible to obtain an immersion seal under a pressure of up to 3 bar, ie 3.10 5 Pa. It is understood that the presence of the anti-corrosion agent on the inner surface of the section of free end 8 of the member 2 is optional. It would serve especially in case of rupture of the seal, for example caused during a shock suffered by the body 2.

Les dimensions de l'organe de connexion électrique 2 dépendent du diamètre du conducteur 12 et ne dépendent pas des propriétés de la cosse 18. Il est donc possible de faire correspondre un modèle d'organe de connexion électrique 2 à un diamètre bien précis du conducteur 12. En d'autres termes, il est possible de normaliser les dimensions de l'organe 2. Par ailleurs, les propriétés de la cosse 18 sont indépendantes du fait que le conducteur 12 comprenne du cuivre ou de l'aluminium.The dimensions of the electrical connection member 2 depend on the diameter of the conductor 12 and do not depend on the properties of the lug 18. It is therefore possible to match a model of electrical connection member 2 to a specific diameter of the driver. In other words, it is possible to standardize the dimensions of the member 2. Furthermore, the properties of the lug 18 are independent of the fact that the conductor 12 comprises copper or aluminum.

On a illustré en figure 5 un organe de connexion électrique 2' appartenant à un câble électrique selon un deuxième mode de réalisation de l'invention. Cet organe 2' qui forme lui aussi un tube de jonction diffère de celui du premier mode en ce qu'il comprend un tube 4 présentant deux extrémités libres 8 de forme annulaire. Le tronçon déformé 10 est situé entre ces deux extrémités libres 8 et forme cette fois un tronçon médian. L'organe 2' de ce deuxième mode de réalisation permet le sertissage de deux conducteurs électriques 12 à chacune des extrémités libres de forme annulaire 8 et d'une cosse à fut ouvert 18 sur le tronçon 10. Le câble électrique obtenu suite à la connexion des deux conducteurs électriques 12 et de la cosse à fut ouvert 18 est illustré dans les figures 6 à 8. On observe que l'organe 2' permet de réaliser des faisceaux de câbles de forme complexe.We have illustrated in figure 5 an electrical connection member 2 'belonging to an electric cable according to a second embodiment of the invention. This member 2 'which also forms a junction tube differs from that of the first mode in that it comprises a tube 4 having two free ends 8 of annular shape. The deformed section 10 is located between these two free ends 8 and this time forms a median section. The member 2 'of this second embodiment allows the crimping of two electrical conductors 12 at each of the annular free ends 8 and a terminal 18 was opened on the section 10. The electric cable obtained following the connection of the two electrical conductors 12 and the lug was opened 18 is illustrated in the Figures 6 to 8 . It is observed that the member 2 'makes it possible to produce bundles of cables of complex shape.

Bien entendu, on pourra apporter à l'invention de nombreuses modifications sans sortir du cadre de celle-ci.Of course, we can bring to the invention many changes without departing from the scope thereof.

On pourra réaliser l'organe de connexion électrique dans tout matériau présentant des propriétés électriques et mécaniques satisfaisantes pour permettre la transmission du courant électrique et pour lui conférer une durée de vie suffisamment longue.The electrical connection member may be made of any material having satisfactory electrical and mechanical properties to allow the transmission of electric current and to give it a sufficiently long service life.

On pourra remplacer la cosse à fut ouvert par tout type de cosse pouvant être serti sur le tronçon déformé du tube de l'organe de connexion électrique, par exemple un tube de cuivre convenablement mis en forme.We can replace the lug was opened by any type of lug can be crimped on the deformed section of the tube of the electrical connection member, for example a suitably shaped copper tube.

Claims (12)

Câble électrique caractérisé en ce qu'il comprend : - un élément de câblage électrique (12), et - un organe de connexion électrique (2 ; 2') serti à l'élément de câblage électrique (12) de manière étanche et apte à connecter l'élément de câblage électrique (12) à un autre élément de câblage électrique (18), l'organe de connexion électrique (2; 2') comprenant un tube (4) présentant au moins une extrémité de forme annulaire (8) donnant accès à un logement interne du tube (4), et au moins un tronçon (10) dans lequel une section du tube (4) est déformée de sorte qu'elle comprend plusieurs portions accolées l'une à l'autre ou les unes aux autres. Electric cable characterized in that it comprises: an electrical wiring element (12), and - an electrical connection member (2; 2 ') crimped to the electrical wiring element (12) in a sealed manner and adapted to connect the electrical wiring element (12) to another electrical wiring element (18), the electrical connection member (2; 2 ') comprising a tube (4) having at least one annular end (8) giving access to an inner housing of the tube (4), and at least one section (10) in wherein a section of the tube (4) is deformed so that it comprises a plurality of portions contiguous to one another or to each other. Câble selon la revendication précédente, l'élément de câblage électrique (12) étant un premier élément de câblage électrique (12), le câble comprenant en outre un deuxième élément de câblage électrique (18) connecté à l'organe (2 ; 2') de manière étanche.Cable according to the preceding claim, the electrical wiring element (12) being a first electrical wiring element (12), the cable further comprising a second electrical wiring element (18) connected to the member (2; 2 ' ) tightly. Câble selon l'une quelconque des revendications précédentes, dans lequel le tube (4) a une section transversale à profil en « U » dans le tronçon (10).Cable according to any one of the preceding claims, wherein the tube (4) has a cross section with a "U" profile in the section (10). Câble selon l'une quelconque des revendications précédentes, dans lequel l'organe (2 ; 2') est d'un seul tenant.Cable according to any one of the preceding claims, wherein the member (2; 2 ') is in one piece. Câble selon l'une quelconque des revendications précédentes, dans lequel le tube (4) est continu.Cable according to any one of the preceding claims, wherein the tube (4) is continuous. Câble selon l'une quelconque des revendications précédentes, dans lequel le tube (4) comprend un alliage cuivreux.Cable according to any one of the preceding claims, wherein the tube (4) comprises a cuprous alloy. Câble selon l'une quelconque des revendications précédentes, dans lequel une surface interne de l'extrémité de forme annulaire (8) est revêtue d'un agent anticorrosion.A cable as claimed in any one of the preceding claims, wherein an inner surface of the annular end (8) is coated with an anti-corrosive agent. Câble selon l'une quelconque des revendications précédentes, dans lequel le tronçon (10) est situé à une extrémité du tube (4).Cable according to any one of the preceding claims, wherein the section (10) is located at one end of the tube (4). Câble selon l'une quelconque des revendications 1 à 7, dans lequel le tube (4) présente deux extrémités de forme annulaire (8).Cable according to any one of claims 1 to 7, wherein the tube (4) has two annular ends (8). Câble selon l'une quelconque des revendications précédentes, dans lequel le premier élément de câblage électrique (12) est revêtu d'une gaine d'étanchéité (16) de préférence réalisée dans un polymère thermorétractable.Cable according to any one of the preceding claims, wherein the first electrical wiring element (12) is coated with a sealing sheath (16) preferably made of a heat-shrinkable polymer. Faisceau de câbles qui comprend au moins un câble selon l'une quelconque des revendications précédentes.A bundle of cables which comprises at least one cable according to any one of the preceding claims. Procédé pour connecter électriquement des premier et deuxième éléments de câblage électrique (12, 18), dans lequel : - on sertit le premier élément de câblage électrique (12) dans une extrémité (8) d'un tube (4) d'un organe de connexion électrique (2 ; 2'), cette extrémité (8) ayant une forme annulaire, et - on sertit le deuxième élément de câblage (18) sur un tronçon (10) du tube (4) de l'organe de connexion électrique (2 ; 2'), une section du tube (4) étant déformée dans le tronçon (10) de sorte qu'elle comprend plusieurs portions accolées l'une à l'autre ou les unes aux autres. A method for electrically connecting first and second electrical wiring elements (12, 18), wherein: the first electrical wiring element (12) is crimped into an end (8) of a tube (4) of an electrical connection member (2; 2 '), this end (8) having an annular shape, and the second wiring element (18) is crimped onto a section (10) of the tube (4) of the electrical connection member (2; 2 '), a section of the tube (4) being deformed in the section (10; ) so that it comprises several portions contiguous to one another or to each other.
EP16178906.0A 2015-07-13 2016-07-11 Electrical connecting member for electrical wiring elements Active EP3118932B1 (en)

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SI201630976T SI3118932T1 (en) 2015-07-13 2016-07-11 Electrical connecting member for electrical wiring elements

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FR1556652A FR3039007B1 (en) 2015-07-13 2015-07-13 ELECTRICAL CONNECTING DEVICE FOR ELECTRICAL WIRING ELEMENTS

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EP3560766A1 (en) * 2018-04-27 2019-10-30 Lisa Dräxlmaier GmbH Cable assembly for an electrical network of a motor vehicle

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EP2141771A1 (en) * 2008-07-03 2010-01-06 Lisa Dräxlmaier GmbH Contacting of light metal conductors
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FR2917244A1 (en) * 2007-06-06 2008-12-12 Peugeot Citroen Automobiles Sa Connection lug for electric cables, has tubular ends to receive stripped ends of conducting electric cable, and pressed zone arranged between two tubular ends in order to ensure sealing between tubular ends
US20110048762A1 (en) * 2007-12-19 2011-03-03 Sumitomo Wiring Systems, Ltd. Waterproofing method for wire and wire having waterproof part formed by the waterproofing method
EP2141771A1 (en) * 2008-07-03 2010-01-06 Lisa Dräxlmaier GmbH Contacting of light metal conductors
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EP3560766A1 (en) * 2018-04-27 2019-10-30 Lisa Dräxlmaier GmbH Cable assembly for an electrical network of a motor vehicle

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FR3039007A1 (en) 2017-01-20
FR3039007B1 (en) 2019-10-11
ES2821893T3 (en) 2021-04-28
SI3118932T1 (en) 2020-12-31
EP3118932B1 (en) 2020-08-19

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