EP3439111B1 - Optimised crimping of two electrical connectors - Google Patents
Optimised crimping of two electrical connectors Download PDFInfo
- Publication number
- EP3439111B1 EP3439111B1 EP18186842.3A EP18186842A EP3439111B1 EP 3439111 B1 EP3439111 B1 EP 3439111B1 EP 18186842 A EP18186842 A EP 18186842A EP 3439111 B1 EP3439111 B1 EP 3439111B1
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- European Patent Office
- Prior art keywords
- connector
- zones
- assembly
- connectors
- main axis
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- 238000002788 crimping Methods 0.000 title claims description 32
- 238000000034 method Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
- H01R43/0488—Crimping apparatus or processes with crimp height adjusting means
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- 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
- H01R4/188—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 having an uneven wire-receiving surface to improve the contact
Definitions
- the invention relates to electrical connectors. More particularly, the invention relates to the crimping of electrical connectors.
- a known method is to crimp a first of these connectors into the second. This consists in inserting the first electrical connector inside the second and in squeezing a section of this assembly in which the second connector covers the first connector. This compression, which must be sufficient to deform the section, makes it possible to ensure the electrical contact between the two connectors and therefore the flow of electricity from one to the other of the connectors.
- the first connector can be an electrical wire comprising several strands and the second can be a wiring lug.
- the strands are generally made of copper, but it may be desirable to make them of aluminum for certain applications because of its low density (about three times lower than that of copper).
- the first is to create an efficient electrical connection between the two connectors.
- the second consists in creating a solid mechanical connection, in particular in tension, between the two connectors.
- a third aspect crimping can be provided in order to improve the aesthetics of the whole.
- US2015364833A1 , EP1658662A1 , US2015364835A1 and EP1503454A1 each disclose the crimping of connectors between them.
- An object of the invention is to overcome these drawbacks by simplifying the crimping of the first connector in the second connector.
- a crimping method according to claim 1 is provided.
- the relative position of the two areas of the walls of the mold is fixed and known.
- the reproducibility of the crimping is thus improved in that it makes it possible to guarantee the adjacency of the two pressed zones of the assembly.
- each wall has a general shape of “W”.
- the walls are thus simple to produce and allow effective pressurization.
- the walls form cavities of different areas in the zones in sections perpendicular to the main axis.
- the first wall of the mold forming a fixed die, a punch carrying the second wall is pressed in the direction of the first wall.
- the crimping is thus done in a simple way, by pressing the punch in the direction of the die.
- the crimping can easily be configured with the punch.
- the shape of the pressed areas of the assembly can be changed during crimping. Flexibility is therefore provided in the crimping process.
- the second connector has ridges on an internal surface.
- the ridges of the second connector make it possible to create a plurality of pressure points on the first connector, which allows the second connector to grip the first connector.
- the tensile strength of the assembly is thus improved, which contributes to improving the mechanical properties of the crimping.
- the first electrical connector is made of aluminum.
- the pressure points created by the second connector make it possible to break an insulating layer of alumina which forms on the surface of the first connector by oxidation. This constraint is therefore overcome, which makes it possible to improve the electrical properties of the assembly.
- a set of first and second electrical connectors as defined in claim 4 is also provided according to the invention.
- the second connector has ridges on an internal surface.
- the ridges of the second connector make it possible to create a plurality of pressure points on the first connector which make it possible to break the layer of alumina which forms on the surface of the strands if they are made in aluminum. This constraint is therefore overcome, which makes it possible to improve the electrical properties of the assembly.
- the plurality of pressure points allow the second connector to grip the first connector.
- the tensile strength of the assembly is thus improved, which contributes to improving the mechanical properties of the crimping.
- the ridges make it possible to increase the contact surface between the first and second connectors, which improves the electrical conduction between them.
- the ridges extend helically over the inner surface of the second connector.
- the ridges form an angle of between 10 and 80 ° with a main axis of the assembly.
- the second connector is made from a copper alloy.
- the second connector is thus made of a material having a hardness greater than that of aluminum, which facilitates the breaking of the layer of alumina in the case where the first connector is made of aluminum.
- the set 2 includes first 4 and second 6 electrical connectors.
- the first connector 4 is intended to be crimped in the second connector 6.
- the first and second connectors 4, 6 are here generally cylindrical in shape and have main axes coinciding with a main axis 8 of the assembly 2.
- the first connector 4 is formed by an electric wire comprising one or more strands 10 made of an electrically conductive material.
- the strands 10 are made of aluminum, but it can very well be provided that they are made of any other conductive material, for example any metal.
- the second connector 6 has at one axial end an opening 11, the dimensions of which allow the insertion of the first connector 4.
- the second connector 6 is here formed by a wiring lug and comprises a tab 12 allowing its subsequent fixing.
- the second connector 6 is made of a material having a hardness greater than that of the material in which the strands 10 of the first connector 4 are made.
- the strands 10 being made of aluminum, one can for example choose to make the second connector 6 in a relatively inexpensive copper alloy. However, you can choose another material for the second connector 6.
- the second connector 6 has striations 20 on an internal surface. These stripes 20 extend helically on the internal surface of the second connector 6, here at an angle approximately equal to 45 ° with the axis 8. In general, the stripes ridges 20 form an angle between 10 and 80 ° with the axis 8.
- the mold 21 used to crimp the first connector 4 in the second connector 6.
- the mold 21 comprises a die 22 and a punch 24 respectively forming first and second parts of the mold 21.
- the die 22 has a wall having different shapes in two zones 22a, 22b which follow one another along the axis 8.
- the punch 24 has a wall having different shapes in two zones 24a, 24b which follow each other. along axis 8.
- zone 22a is located opposite zone 24a and zone 22b is located opposite zone 24b.
- each wall has a general shape of “W”.
- the walls form cavities of different areas in the zones in sections perpendicular to the axis 8.
- the first connector 4 is inserted into the second connector 6. This is permitted by the dimensions of the connectors 4, 6 as stated in the above.
- the assembly 2 is placed in the die 22 so that a section 14 of the assembly 2 in which the two connectors 4, 6 are radially superimposed can be pressed into the mold 21.
- the punch 24 is pressed in the direction of the die 22 so as to compress the section 14.
- the mold 21 then occupies the configuration illustrated in figures 5a and 5b .
- the figure 5a is a section comprising areas 22a and 24a
- the figure 5b is a section comprising Figures 22b and 24b.
- the assembly 2 resulting from this crimping process is illustrated in figure 2 .
- the section 14 is formed by zones 16 and 18 in which the assembly 2 is compressed. Zone 16 of section 14 has been compressed by zones 22a and 24a of mold 21, and zone 18 of section 14 has been compressed by zones 22b and 24b of mold 21.
- a double crimping has thus been produced having two different functions. : an electrical crimping and a mechanical crimping.
- Zone 16 namely the least compressed zone, is located closer to the opening 11 of the second connector 6 than the zone 18. Otherwise, the zone 18 would create a zone of mechanical weakness of the assembly 2. And there is also the risk of cutting the first connector 4 during crimping. In other words, the arrangement of zones 16 and 18 is chosen to maximize the mechanical and electrical performance of assembly 2.
- the figures 6a and 6b illustrate more precisely the state of the first and second connectors 4, 6 after crimping.
- the figure 6a is a section including zone 16, and the figure 6b is a section comprising zone 18. It is observed in particular that the strands 10 and the second connector 6 are compressed and take the form of the walls of the mold 21.
- the second connector 6 has two opposite outer faces 6A, 6B, each outer face 6A, 6B having the shape of a respective wall of the mold 21.
- each outer face 6A, 6B has different shapes in the two zones. 16, 18.
- Each external face 6A, 6B has here, in section perpendicular to the main axis 8 and in each of the zones 16, 18, a general shape of “W”.
- the assembly formed by the first and second connectors 4, 6 has different areas in the zones 16, 18, in section perpendicular to the main axis 8.
- the ridges 20 of the second connector 6 penetrate into the strands 10. This is permitted by the fact that the second connector 6 is made in a material having a hardness greater than that of the material in which the strands 10 are made. As a result, the striations 20 can break the alumina layer forming at the second connector 6 / strands 10 interface. And the penetration of the striations 20 improves the resistance to tearing of the assembly 2.
Description
L'invention concerne les connecteurs électriques. Plus particulièrement, l'invention concerne le sertissage des connecteurs électriques.The invention relates to electrical connectors. More particularly, the invention relates to the crimping of electrical connectors.
Afin de connecter électriquement et mécaniquement deux connecteurs électriques entre eux, un procédé connu est de sertir un premier de ces connecteurs dans le second. Cela consiste à insérer le premier connecteur électrique à l'intérieur du second et à presser un tronçon de cet ensemble dans lequel le second connecteur recouvre le premier connecteur. Cette compression, qui doit être suffisante pour déformer le tronçon, permet d'assurer le contact électrique entre les deux connecteurs et donc la circulation de l'électricité de l'un à l'autre des connecteurs. Le premier connecteur peut être un fil électrique comprenant plusieurs brins et le second peut être une cosse de câblage. Les brins sont généralement en cuivre, mais il peut être souhaité de les réaliser en aluminium pour certaines applications du fait de sa faible masse volumique (environ trois fois inférieure à celle du cuivre).In order to electrically and mechanically connect two electrical connectors together, a known method is to crimp a first of these connectors into the second. This consists in inserting the first electrical connector inside the second and in squeezing a section of this assembly in which the second connector covers the first connector. This compression, which must be sufficient to deform the section, makes it possible to ensure the electrical contact between the two connectors and therefore the flow of electricity from one to the other of the connectors. The first connector can be an electrical wire comprising several strands and the second can be a wiring lug. The strands are generally made of copper, but it may be desirable to make them of aluminum for certain applications because of its low density (about three times lower than that of copper).
En pratique, il est nécessaire de procéder successivement à au moins deux sertissages différents. Le premier consiste à créer une connexion électrique efficace entre les deux connecteurs. Le second consiste à créer une liaison mécanique solide, notamment en traction, entre les deux connecteurs. Un troisième sertissage d'aspect peut être prévu afin d'améliorer l'esthétisme de l'ensemble.In practice, it is necessary to carry out successively at least two different crimps. The first is to create an efficient electrical connection between the two connectors. The second consists in creating a solid mechanical connection, in particular in tension, between the two connectors. A third aspect crimping can be provided in order to improve the aesthetics of the whole.
Ces différents sertissages permettent de sertir correctement le premier connecteur dans le second connecteur. Toutefois, le fait de devoir procéder à plusieurs opérations de sertissage est chronophage et fastidieux. De plus, il s'agit d'une source de baisse de reproductibilité.These different crimps make it possible to correctly crimp the first connector in the second connector. However, having to carry out several crimping operations is time consuming and tedious. In addition, it is a source of reduced reproducibility.
Un but de l'invention est de pallier ces inconvénients en simplifiant le sertissage du premier connecteur dans le second connecteur.An object of the invention is to overcome these drawbacks by simplifying the crimping of the first connector in the second connector.
A cet effet, on prévoit selon l'invention un procédé de sertissage selon la revendication 1.For this purpose, according to the invention, a crimping method according to claim 1 is provided.
Ainsi, grâce aux formes différentes des parois du moule dans des zones se faisant suite le long d'un axe principal des connecteurs, on réalise en une opération deux sertissages pouvant avoir des fonctions différentes, par exemple un sertissage électrique et un sertissage mécanique. Il s'ensuit qu'on simplifie considérablement le sertissage du premier connecteur dans le second connecteur.Thus, by virtue of the different shapes of the walls of the mold in zones which follow one another along a main axis of the connectors, two crimping operations which can have different functions, for example an electrical crimping and a mechanical crimping, are produced in one operation. It follows that the crimping of the first connector in the second connector is considerably simplified.
De plus, la position relative des deux zones des parois du moule est fixe et connue. On améliore ainsi la reproductibilité du sertissage en ce que cela permet de garantir l'adjacence des deux zones pressées de l'ensemble.In addition, the relative position of the two areas of the walls of the mold is fixed and known. The reproducibility of the crimping is thus improved in that it makes it possible to guarantee the adjacency of the two pressed zones of the assembly.
Avantageusement, dans une section perpendiculaire à l'axe principal, chaque paroi a une forme générale de « W ».Advantageously, in a section perpendicular to the main axis, each wall has a general shape of “W”.
Les parois sont ainsi simples à réaliser et permettent de réaliser des mises en pression efficaces.The walls are thus simple to produce and allow effective pressurization.
Avantageusement, une fois le moule fermé, les parois forment des cavités d'aires différentes dans les zones dans des sections perpendiculaires à l'axe principal.Advantageously, once the mold is closed, the walls form cavities of different areas in the zones in sections perpendicular to the main axis.
La possibilité de choisir les aires de ces cavités permet un réglage quantitatif des propriétés électrique et mécanique du sertissage.The possibility of choosing the areas of these cavities allows quantitative adjustment of the electrical and mechanical properties of the crimping.
Avantageusement, la première paroi du moule formant une matrice fixe, on presse un poinçon portant la seconde paroi en direction de la première paroi.Advantageously, the first wall of the mold forming a fixed die, a punch carrying the second wall is pressed in the direction of the first wall.
Le sertissage se fait ainsi de manière simple, en pressant le poinçon en direction de la matrice. De plus, on peut aisément paramétrer le sertissage avec le poinçon. En d'autres termes, en changeant de poinçon, on peut changer la forme des zones pressées de l'ensemble lors du sertissage. On apporte donc de la souplesse dans le procédé de sertissage.The crimping is thus done in a simple way, by pressing the punch in the direction of the die. In addition, the crimping can easily be configured with the punch. In other words, by changing the punch, the shape of the pressed areas of the assembly can be changed during crimping. Flexibility is therefore provided in the crimping process.
Selon l'invention, le second connecteur présente des stries sur une surface interne.According to the invention, the second connector has ridges on an internal surface.
Ainsi, lors du sertissage, les stries du second connecteur permettent de créer une pluralité de points de pression sur le premier connecteur, ce qui permet au second connecteur d'agripper le premier connecteur. On améliore ainsi la tenue à la traction de l'ensemble, ce qui contribue à améliorer les propriétés mécaniques du sertissage.Thus, during crimping, the ridges of the second connector make it possible to create a plurality of pressure points on the first connector, which allows the second connector to grip the first connector. The tensile strength of the assembly is thus improved, which contributes to improving the mechanical properties of the crimping.
Cela est encore plus avantageux si le premier connecteur électrique est réalisé en aluminium. En effet, les points de pressions créés par le second connecteur rendent possible la rupture d'une couche d'alumine, isolante, qui se forme à la surface du premier connecteur par oxydation. On s'affranchit donc de cette contrainte, ce qui permet d'améliorer les propriétés électriques de l'ensemble.This is even more advantageous if the first electrical connector is made of aluminum. In fact, the pressure points created by the second connector make it possible to break an insulating layer of alumina which forms on the surface of the first connector by oxidation. This constraint is therefore overcome, which makes it possible to improve the electrical properties of the assembly.
On prévoit également selon l'invention un ensemble d'un premier et d'un second connecteurs électriques tel que défini à la revendication 4.A set of first and second electrical connectors as defined in
Selon l'invention, le second connecteur présente des stries sur une surface interne.According to the invention, the second connector has ridges on an internal surface.
Ainsi, lors du sertissage, les stries du second connecteur permettent de créer une pluralité de points de pression sur le premier connecteur qui rendent possible la rupture de la couche d'alumine qui se forme à la surface des brins s'ils sont réalisés en aluminium. On s'affranchit donc de cette contrainte, ce qui permet d'améliorer les propriétés électriques de l'ensemble.Thus, during crimping, the ridges of the second connector make it possible to create a plurality of pressure points on the first connector which make it possible to break the layer of alumina which forms on the surface of the strands if they are made in aluminum. This constraint is therefore overcome, which makes it possible to improve the electrical properties of the assembly.
De plus, la pluralité de points de pression permet au second connecteur d'agripper le premier connecteur. On améliore ainsi la tenue à la traction de l'ensemble, ce qui contribue à améliorer les propriétés mécaniques du sertissage.Additionally, the plurality of pressure points allow the second connector to grip the first connector. The tensile strength of the assembly is thus improved, which contributes to improving the mechanical properties of the crimping.
Enfin, les stries permettent d'augmenter la surface de contact entre les premier et second connecteurs, ce qui améliore la conduction électrique entre ceux-ci.Finally, the ridges make it possible to increase the contact surface between the first and second connectors, which improves the electrical conduction between them.
De préférence, les stries s'étendent hélicoïdalement sur la surface interne du second connecteur.Preferably, the ridges extend helically over the inner surface of the second connector.
Ces stries sont simples à réaliser et permettent d'agripper efficacement le premier connecteur.These ridges are simple to produce and allow the first connector to be gripped effectively.
De préférence les stries forment un angle compris entre 10 et 80° avec un axe principal de l'ensemble.Preferably the ridges form an angle of between 10 and 80 ° with a main axis of the assembly.
De préférence, le second connecteur est réalisé dans un alliage cuivreux.Preferably, the second connector is made from a copper alloy.
Le second connecteur est ainsi réalisé dans un matériau présentant une dureté supérieure à celle de l'aluminium, ce qui facilite la brisure de la couche d'alumine dans le cas où le premier connecteur est réalisé en aluminium.The second connector is thus made of a material having a hardness greater than that of aluminum, which facilitates the breaking of the layer of alumina in the case where the first connector is made of aluminum.
On va maintenant décrire un mode de réalisation de l'invention à l'appui des dessins annexés sur lesquels :
- la
figure 1 est une vue éclatée d'un ensemble d'un premier et d'un second connecteurs électriques selon l'invention, avant sertissage, - la
figure 2 est une vue schématique de l'ensemble de lafigure 1 après sertissage, - la
figure 3 est une vue en perspective d'une extrémité du second connecteur électrique de l'ensemble de lafigure 1 , - la
figure 4 est une vue à grande échelle illustrant un moule utilisé pour sertir l'ensemble de lafigure 1 , - les
figures 5a et 5b illustrent la configuration du moule de lafigure 4 une fois fermé, dans deux sections différentes, et - les
figures 6a et 6b sont des vues en section des deux zones de l'ensemble après sertissage.
- the
figure 1 is an exploded view of an assembly of first and second electrical connectors according to the invention, before crimping, - the
figure 2 is a schematic view of the entirefigure 1 after crimping, - the
figure 3 is a perspective view of one end of the second electrical connector of the assembly of thefigure 1 , - the
figure 4 is an enlarged view showing a mold used to crimp the assembly of thefigure 1 , - the
figures 5a and 5b illustrate the mold configuration of thefigure 4 once closed, in two different sections, and - the
figures 6a and 6b are sectional views of the two areas of the assembly after crimping.
On a illustré en
Le premier connecteur 4 est formé par un fil électrique comprenant un ou plusieurs brins 10 réalisés dans un matériau conducteur de l'électricité. Dans ce qui suit, on va considérer que les brins 10 sont réalisés en aluminium, mais on peut très bien prévoir qu'ils soient réalisés dans n'importe quel autre matériau conducteur, par exemple n'importe quel métal.The
Le second connecteur 6 présente à une extrémité axiale une ouverture 11 dont les dimensions permettent l'insertion du premier connecteur 4. Le second connecteur 6 est ici formé par une cosse de câblage et comprend une patte 12 permettant sa fixation ultérieure.The
Le second connecteur 6 est réalisé dans un matériau présentant une dureté supérieure à celle du matériau dans lequel sont réalisés les brins 10 du premier connecteur 4. Les brins 10 étant réalisés en aluminium, on peut par exemple choisir de réaliser le second connecteur 6 dans un alliage cuivreux relativement peu onéreux. On peut toutefois choisir un autre matériau pour le second connecteur 6.The
En référence à la
On a illustré en
La matrice 22 présente une paroi présentant des formes différentes dans deux zones 22a, 22b se faisant suite le long de l'axe 8. De même, le poinçon 24 présente une paroi présentant des formes différentes dans deux zones 24a, 24b se faisant suite le long de l'axe 8. Lorsque le moule est fermé, la zone 22a est située en regard de la zone 24a et la zone 22b est située en regard de la zone 24b. En section perpendiculaire à l'axe 8, et dans chacune des zones 22a, 22b, 24a et 24b, chaque paroi a une forme générale de « W ».The
Comme cela est visible sur les
Pour réaliser le sertissage du premier connecteur 4 dans le second connecteur 6, on procède de la manière suivante.To perform the crimping of the
Tout d'abord, on insère le premier connecteur 4 dans le second connecteur 6. Cela est permis par les dimensions des connecteurs 4, 6 telles qu'énoncées dans ce qui précède.First, the
Ensuite, on place l'ensemble 2 dans la matrice 22 de manière à ce qu'un tronçon 14 de l'ensemble 2 dans lequel les deux connecteurs 4, 6 se superposent radialement puisse être pressé dans le moule 21.Then, the assembly 2 is placed in the die 22 so that a
Enfin, on presse le poinçon 24 en direction de la matrice 22 de manière à comprimer le tronçon 14. Le moule 21 occupe alors la configuration illustrée en
L'ensemble 2 résultant de ce procédé de sertissage est illustré en
La zone 16, à savoir la zone la moins comprimée, se trouve plus près de l'ouverture 11 du second connecteur 6 que la zone 18. Dans le cas contraire, la zone 18 créerait une zone de faiblesse mécanique de l'ensemble 2. Et on risquerait aussi de sectionner le premier connecteur 4 lors du sertissage. En d'autres termes, l'agencement des zones 16 et 18 est choisi pour maximiser les performances mécaniques et électriques de l'ensemble 2.
Les
En particulier, le second connecteur 6 possède deux faces externes 6A, 6B opposées, chaque face externe 6A, 6B ayant la forme d'une paroi respective du moule 21. Ainsi, chaque face externe 6A, 6B présente des formes différentes dans les deux zones 16, 18. Chaque face externe 6A, 6B a ici, en section perpendiculaire à l'axe principal 8 et dans chacune des zones 16, 18, une forme générale de « W ».In particular, the
Par ailleurs, l'ensemble formé par les premier et second connecteurs 4, 6 possède des aires différentes dans les zones 16, 18, en section perpendiculairement à l'axe principal 8.Furthermore, the assembly formed by the first and
Grâce à cette compression, on crée une grande surface de contact entre les premier et second connecteurs 4, 6, ce qui permet le maintien mécanique de l'ensemble et assure une bonne conductivité électrique entre les deux connecteurs 4, 6.Thanks to this compression, a large contact surface is created between the first and
On voit également que les stries 20 du second connecteur 6 pénètrent dans les brins 10. Cela est permis par le fait que le second connecteur 6 est réalisé dans un matériau présentant une dureté supérieure à celle du matériau dans lequel sont réalisés les brins 10. En conséquence, les stries 20 peuvent briser la couche d'alumine se formant à l'interface second connecteur 6 / brins 10. Et la pénétration des stries 20 améliore la résistance à l'arrachement de l'ensemble 2.It can also be seen that the
Bien entendu, on pourra apporter à l'invention de nombreuses modifications sans sortir du cadre des revendications.Of course, numerous modifications can be made to the invention without departing from the scope of the claims.
Claims (10)
- A method for crimping a first connector (4) in a second connector (6), wherein the two connectors (4, 6) are pressed between first and second walls of a mold (21), these walls each having different shapes in zones following one another along a main axis (8) of the connectors (4, 6), wherein, in cross-section perpendicular to the main axis (8), and in each of the zones, each wall is generally W-shaped, and wherein the second connector (6) has ridges (20) on an inner surface.
- The method according to the preceding claim, wherein, once the mold (21) is closed, the walls form cavities of different areas in the zones in cross-sections perpendicular to the main axis (8).
- The method according to any one of the preceding claims, wherein, the first wall of the mold (21) forming a fixed die (22), a punch (24) bearing the second wall is pressed toward the first wall.
- An assembly (2) of a first and a second electrical connector (4, 6), wherein the first connector (4) is crimped in the second connector (6), the assembly (2) comprising at least two zones, following one another along a main axis (8) of the connectors (4, 6), in which the connectors (4, 6) are pressed, the connectors (4, 6) having different shapes in the two zones in cross-sections perpendicular to the main axis (8), wherein the shapes are obtained by pressing the two connectors (4, 6) between first and second walls of a mold (21), each of these walls having different shapes in the two zones, and wherein each wall is, in cross-section perpendicular to the main axis (8) and in each of the zones, generally W-shaped and wherein the second connector (6) has ridges (20) on an inner surface.
- The assembly according to claim 4, wherein the second connector has two opposite outer faces (6A, 6B), each outer face (6A, 6B) having different shapes in the two zones (16, 18).
- The assembly according to claim 5, wherein each face is generally W-shaped in cross-section perpendicular to the main axis (8) and in each of the zones (16, 18).
- The assembly according to any one of claims 4 to 6, having different areas in the zones (16, 18) in cross-sections perpendicular to the main axis (8).
- The assembly (2) according to claim 7, wherein the ridges (20) extend helically over the inner surface of the second connector (6).
- The assembly (2) according to any one of claims 4 to 8, wherein the ridges (20) form an angle comprised between 10 and 80° with a main axis (8) of the assembly (2).
- The assembly (2) according to any one of claims 4 to 9, wherein the second connector (6) is made from a cuprous alloy.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI201830597T SI3439111T1 (en) | 2017-08-01 | 2018-08-01 | Optimised crimping of two electrical connectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1757371A FR3069965B1 (en) | 2017-08-01 | 2017-08-01 | OPTIMIZED CRIMPING OF TWO ELECTRICAL CONNECTORS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3439111A1 EP3439111A1 (en) | 2019-02-06 |
EP3439111B1 true EP3439111B1 (en) | 2021-12-22 |
Family
ID=60765736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18186842.3A Active EP3439111B1 (en) | 2017-08-01 | 2018-08-01 | Optimised crimping of two electrical connectors |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3439111B1 (en) |
ES (1) | ES2904898T3 (en) |
FR (1) | FR3069965B1 (en) |
SI (1) | SI3439111T1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020103866A1 (en) * | 2020-02-14 | 2021-08-19 | Phoenix Contact E-Mobility Gmbh | Contact element assembly for a connector part |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1503454B1 (en) * | 2003-07-30 | 2015-08-05 | Furukawa Electric Co. Ltd. | Terminal crimping structure for aluminium wire and producing method |
EP1658662B1 (en) * | 2003-08-19 | 2016-07-27 | Delphi International Operations Luxembourg S.à r.l. | Electric contact crimping method and contact obtained according to said method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60116017T2 (en) * | 2000-09-21 | 2006-07-13 | Yazaki Corp. | Arrangement and method for connecting a terminal to an electrical wire |
CN105009386B (en) * | 2013-02-23 | 2017-11-28 | 古河电气工业株式会社 | Manufacture method, connection structural bodies, wire harness, welded part and the compression bonding apparatus of connection structural bodies |
JP5567234B1 (en) * | 2013-02-23 | 2014-08-06 | 古河電気工業株式会社 | Connection structure, terminal crimping member, wire harness, connector, connection structure crimping method, and crimping apparatus for crimping the connection structure |
-
2017
- 2017-08-01 FR FR1757371A patent/FR3069965B1/en active Active
-
2018
- 2018-08-01 EP EP18186842.3A patent/EP3439111B1/en active Active
- 2018-08-01 ES ES18186842T patent/ES2904898T3/en active Active
- 2018-08-01 SI SI201830597T patent/SI3439111T1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1503454B1 (en) * | 2003-07-30 | 2015-08-05 | Furukawa Electric Co. Ltd. | Terminal crimping structure for aluminium wire and producing method |
EP1658662B1 (en) * | 2003-08-19 | 2016-07-27 | Delphi International Operations Luxembourg S.à r.l. | Electric contact crimping method and contact obtained according to said method |
Also Published As
Publication number | Publication date |
---|---|
FR3069965B1 (en) | 2021-02-12 |
FR3069965A1 (en) | 2019-02-08 |
SI3439111T1 (en) | 2022-04-29 |
EP3439111A1 (en) | 2019-02-06 |
ES2904898T3 (en) | 2022-04-06 |
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