EP3391474B1 - Contact femelle avec lames latérales de maintien pour contact mâle et ensemble de connexion comportant de tels contacts femelle et mâle - Google Patents
Contact femelle avec lames latérales de maintien pour contact mâle et ensemble de connexion comportant de tels contacts femelle et mâle Download PDFInfo
- Publication number
- EP3391474B1 EP3391474B1 EP16810358.8A EP16810358A EP3391474B1 EP 3391474 B1 EP3391474 B1 EP 3391474B1 EP 16810358 A EP16810358 A EP 16810358A EP 3391474 B1 EP3391474 B1 EP 3391474B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- cage
- top wall
- tongue
- side walls
- 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.)
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Links
- 230000013011 mating Effects 0.000 claims description 9
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 240000000966 Allium tricoccum Species 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012777 electrically insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel 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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
- H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
- H01R13/115—U-shaped sockets having inwardly bent legs, e.g. spade type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
- H01R13/18—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding the socket
Definitions
- the invention relates to the field of electrical connectors and, in particular, electrical connectors for motor vehicles.
- the connectors and in particular, those mounted on internal combustion engines, can be subjected to strong vibrations (for example 60G at 1000Hz). It is therefore important that the male and female contacts of these connectors can maintain an electrical contact that is as low resistive as possible over time, that they are not the source of electric arcs or excessive heating and that they are not the seat of corrosion by friction ("fretting corrosion" according to the English terminology).
- the cage has essentially a parallelepipedal shape open at each of the mating and fixing ends, to form a tube with four walls. It therefore comprises a lower wall, an upper wall and two side walls extending between the lower and upper walls. These lower, upper and side walls define an internal space suitable for receiving and housing the tongue of a male contact introduced through the opening of the matching end.
- the upper and lower walls each comprise at least one contact blade, elastic and extending, from the cage towards a free end, transversely with respect to the longitudinal direction.
- the sleeve envelops, from the outside of the cage, at least partially the lower, upper and side walls.
- the contact blades exert pressure on the main faces of the tongue (essentially parallel to the upper and lower walls of the cage), to establish between them a electric contact.
- the tongue can be caused under the effect of vibrations to move and oscillate between the contact blades, in a plane parallel to the lower and upper walls. Such movements can be the cause of a degradation in the quality of the electrical contact between the male and female contacts thus connected.
- An object of the invention is to at least partially overcome this problem and to increase the persistence over time of a good quality of contact between the male and female contacts.
- a female electrical contact of the type of that described above is produced, with a sleeve, in which at least one of the side walls comprises at least one retaining blade.
- This retaining blade is elastic and cut in a side wall. It remains attached to the side wall in which it is cut at a junction. This junction is closer to the mating end than to the attachment end.
- the retaining blade extends from the junction to a free end located closer to the attachment end than to the mating end. The free end protrudes into the internal space.
- the contact comprises a sleeve enveloping, through the outside of the cage, at least partially the lower, upper and side walls.
- Each retaining blade has a pressure zone bearing on the sleeve when a male contact tab is housed in the cage.
- each lateral retaining blade cooperates elastically with an edge of the tongue of the male contact, in order to limit its movements in the female contact in which it is housed.
- each retaining strip can cooperate with an edge (essentially perpendicular to the main faces) of the tab of the male contact, in order to limit, in the cage, its movements parallel to the lower and upper walls.
- connection assembly can for example comprise an electrical connector and a counter-connector comprising respectively a female electrical contact according to the invention, with two retaining blades, and a male electrical contact having a tab with one dimension, perpendicular to the direction. longitudinal and parallel to the lower and upper walls, less than the corresponding internal dimension of the cage, and greater than the distance between the free ends of the retaining blades (when they are not constrained, before insertion of the tongue into the cage ).
- connection assembly optionally comprises a tongue having the shape in cross section of a flattened parallelepiped, and the retaining blades each bear respectively on an edge of the tongue corresponding to the short side of this parallelepiped.
- connection assembly 100 shown in figure 1 comprises a female contact 1 and a male contact 2 (of which only the tongue 3 is shown in the figures).
- the female contact 1, alone or with other contacts can be housed in a connector housing (not shown) of electrically insulating material.
- the male contact 2, alone or with other contacts can be housed in a housing of a counter-connector (not shown) made of electrically insulating material, adapted to mate with the connector comprising the female contact 1. .
- the female 1 and male 2 contacts are coupled, or paired, electrically and mechanically by inserting the tab 3 into the cage 4 of the female contact 1, in an insertion direction essentially parallel to the longitudinal direction L of the male 2 and female 1 contacts. .
- the female contact 1 also comprises a fixing portion 5 extending the cage 4, towards the rear of the latter, in the longitudinal direction L.
- the fixing portion 5 is suitable in this case to receive and crimp the end of a cable (not shown).
- the female contact 1 also includes a protective sleeve 6.
- the cage 4 is obtained by stamping and bending a sheet of conductive material (copper or aluminum or an alloy of these metals for example).
- the sleeve 6 is also obtained by stamping and bending a sheet of conductive material (steel for example).
- the cage 4 has essentially a parallelepipedal shape. It extends longitudinally parallel to the direction L between a matching end 7, towards the front, and a fixing end 8, towards the rear.
- the cage 4 forms (without taking into account the cutouts in the walls) a tube whose cross section is essentially rectangular. This tube therefore has essentially four walls: a lower wall 9, an upper wall 10 and two side walls 11. It is open at each of its longitudinal ends 7 and 8. On the side of the matching end 7, it has a opening through which the tongue 3 of a male contact 2 can be inserted.
- the lower 9, upper 10 and side walls 11 thus define an internal space suitable for receiving and accommodating the tongue 3.
- the cage 4 is formed in a single piece, by folding, parallel to the longitudinal direction L, a shape cut by stamping and by bringing the edges of the stamping blank, one towards l 'other, substantially at the level of a median junction line 12 of the upper wall 10 of the cage 4.
- the junction line 12 is partly covered with a continuous portion 24 of the sleeve 6 (see figure 1 ). extending above and parallel to the upper wall 10 of the cage 4. This continuous portion 24 is folded back on either side of the latter parallel to the side walls 11. It helps to prevent the edges of the cage 4 do not deviate.
- the upper 12 and lower 9 walls each comprise two elastic contact blades 13 and extending, from the cage 4 towards a free end 14, transversely with respect to the longitudinal direction L.
- the contact blades 13 corresponding to the upper 10 and lower 9 walls are linked to the cage at the level of the side walls 11. It can be seen that relatively wide cutouts are made around these contact blades 13.
- a certain elasticity is imparted to the cage 4 which makes it possible to damp part of the energy of the vibrations and limits any relative displacements between the tongue 3 and the contact blades 13.
- this elasticity ensures good resistance to vibrations, at the same time good performance electric.
- the contact blades 13 comprise at their free end 14, an edge 15 between two surfaces forming an acute angle with a plane parallel to the lower 9 and upper walls 10.
- Each edge 15 is essentially tangent to a straight line parallel to the direction longitudinal L.
- Each edge 15 thus allows the contact blades 13 to bite into the material constituting the tongue 3, when it is inserted into the cage 4, which thus contributes to establishing the least resistive electrical contact possible between the blades contact 13 and the tongue 3.
- each edge 15 makes it possible to better anchor the tongue 3 between the contact blades 13 and to exert on the tongue 3 a frictional force tending to limit as much as possible the relative displacement of the tongue 3 with respect to the cage 4 in a plane parallel to the upper 10 and lower 9 walls.
- the side walls 11 each comprise a retaining strip 16, resiliently cut from a side wall to which it remains attached at a junction 17.
- Each retaining strip 16 therefore extends from a junction 17 towards one end. free 18.
- Each retaining blade 16 is folded back towards the rear of the cage 4, that is to say towards the fixing end 5, in order to facilitate the insertion of the tongue 3 into the cage 4 from opening corresponding to the matching end 7.
- the retaining blades 16 extend generally transversely in the internal space of the cage 4, up to possibly almost meet in the center thereof.
- the length and shape of the retaining blades 16 make it possible to adapt to many shapes of tabs 3, whether these have parallel edges 19, as on the figure 6A or bevelled as on the figure 6B .
- Each side wall 11 has a window 20 corresponding to the portion of the cage 4 cut to form a respective retaining blade 16.
- Each retaining blade 16 has, in longitudinal section, parallel to the lower 9 and upper 10 walls, an “S” shape. As shown on figure 5 , a portion of this "S” shape is intended to come into contact with a longitudinal edge 19 of the tongue 3, when the latter is introduced into the cage4. Another portion of this "S” shape is intended to come into contact with the internal face of the sleeve 6. This last portion of the "S” shape forms a pressure zone bearing on the sleeve 6 when a male contact tab 3 2 is housed in cage 4.
- retaining blades 16 guide and hold tab 3 in cage 4, but they limit, on the one hand, transverse movements (in a parallel plane to the upper 10 and lower walls 9) of the tab 3 relative to the cage 4 and, on the other hand, the movements of the cage 4 relative to the sleeve 6.
- the pressure of the retaining blades 16 on the internal face of the sleeve 6 increases the force exerted by the blades retainer 16 on tab 3, thus contributing to better retention of tab 3 in cage 4.
- the sleeve 6 comprises two ramps 21.
- Each ramp 21 is folded towards the internal space of the cage 4 at its mating end 7. They guide the tongue 3 during its introduction into the cage 4.
- These ramps 21 make it possible to attach the sleeve 6 in the cage 4 and to block the movement of the cage 4 in the sleeve 6, in the longitudinal direction L.
- these ramps 21 can each form a support point also contributing to limit the transverse displacement (in a plane parallel to the upper 10 and lower 9 walls) of the tongue 3 with respect to the cage 4.
- the sleeve 6 also comprises, on its internal face, ribs 22 interfering with the external surface of the side walls 11 of the cage 4, and also contributing to limit the transverse displacement (in a plane parallel to the upper walls 10 and lower 9) of the tab 3 in relation to the cage 4.
- the retaining blades 16 it is possible to reduce the transverse relative displacements of the tongue 3 in the cage 4 to 0.8 ⁇ m or less.
- the average tongue width is approximately 1.2mm, and the cage width is 1.8mm.
- each retaining strip 16 is folded back, substantially to half its length, by bringing its free end 18 through the window so that the latter is in contact with the internal surface of the sleeve 6 and build on it.
- the curved portion (substantially in its middle) of each retaining blade 16 comes into contact with a longitudinal edge 19 of the tongue 3 when the latter is introduced into the cage 4. This shape may possibly contribute to giving more rigidity to the holding blades 16, compared to the previous embodiment.
- each retaining blade 16 bears on the internal surface of the sleeve 6 by its free end 18 instead of a curved portion.
- the free end 18 rests on the internal surface of the sleeve 6 at the level of an edge 23 biting into the material constituting the sleeve 6 and creating thus increased friction of the retaining blade 16 on the inner surface of the sleeve 6 when the tongue 3 tends to move transversely in a plane parallel to the upper 10 and lower 9 walls.
- the female contact according to the invention can, thanks to the elasticity of the side blade (s), make it possible to accommodate several shapes and sizes of tabs 3 while retaining, or even by improving the performance when the female 1 and male 2 contacts are subjected to vibrations.
- the female contact is not surrounded by a sleeve, and the female contact consists of a single piece, what has just been described above in relation to the sleeve 6 can be transposed to the surfaces internal of a box in which the female contact 1 is housed.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
L'invention concerne le domaine des connecteurs électriques et, notamment, des connecteurs électriques pour véhicules automobiles.The invention relates to the field of electrical connectors and, in particular, electrical connectors for motor vehicles.
Les connecteurs, et en particulier, ceux montés sur des moteurs à explosion, peuvent être soumis à de fortes vibrations (par exemple 60G à 1000Hz). Il est donc important que les contacts mâles et femelles de ces connecteurs puissent maintenir dans le temps un contact électrique aussi peu résistif que possible, qu'ils ne soient pas à l'origine d'arcs électriques ou d'échauffements excessifs et qu'ils ne soient pas le siège d'une corrosion par frottements (« fretting corrosion » selon la terminologie anglo-saxonne).The connectors, and in particular, those mounted on internal combustion engines, can be subjected to strong vibrations (for example 60G at 1000Hz). It is therefore important that the male and female contacts of these connectors can maintain an electrical contact that is as low resistive as possible over time, that they are not the source of electric arcs or excessive heating and that they are not the seat of corrosion by friction ("fretting corrosion" according to the English terminology).
Il a été proposé des contacts électriques femelles, tels que ceux décrits dans le document
- une extrémité d'appariement munie d'une ouverture par laquelle une languette de contact mâle peut être introduite dans la cage, et
- une extrémité de fixation à partir de laquelle le contact se prolonge par une portion de fixation au niveau de laquelle un câble peut être fixé et relié électriquement, par soudure ou sertissage par exemple.
- a mating end provided with an opening through which a male contact tab can be introduced into the cage, and
- a fixing end from which the contact is extended by a fixing portion at which a cable can be fixed and connected electrically, by soldering or crimping for example.
La cage a essentiellement une forme parallélépipédique ouverte à chacune des extrémités d'appariement et de fixation, pour former un tube avec quatre parois. Elle comprend donc une paroi inférieure, une paroi supérieure et deux parois latérales s'étendant entre les parois inférieure et supérieure. Ces parois inférieure, supérieure et latérales délimitent un espace interne adapté pour recevoir et loger la languette d'un contact mâle introduite par l'ouverture de l'extrémité d'appariement. Les parois supérieure et inférieure comprennent chacune au moins une lame de contact, élastique et s'étendant, à partir de la cage vers une extrémité libre, transversalement par rapport à la direction longitudinale.The cage has essentially a parallelepipedal shape open at each of the mating and fixing ends, to form a tube with four walls. It therefore comprises a lower wall, an upper wall and two side walls extending between the lower and upper walls. These lower, upper and side walls define an internal space suitable for receiving and housing the tongue of a male contact introduced through the opening of the matching end. The upper and lower walls each comprise at least one contact blade, elastic and extending, from the cage towards a free end, transversely with respect to the longitudinal direction.
Par ailleurs, le manchon enveloppe, par l'extérieur de la cage, au moins partiellement les parois inférieure, supérieure et latérales.Furthermore, the sleeve envelops, from the outside of the cage, at least partially the lower, upper and side walls.
Il peut être avantageux de pouvoir utiliser ce type de contacts femelles avec des contacts mâles de formes et de dimensions variées, sans avoir à concevoir et fabriquer un contact femelle adapté et ajusté pour chaque forme ou dimension de contact mâle. Par exemple, dans le cas d'un contact mâle avec une languette de forme aplatie, les lames de contact exercent une pression sur les faces principales de la languette (essentiellement parallèles aux parois supérieure et inférieure de la cage), pour établir entre elles un contact électrique. Mais, la languette peut être amenée sous l'effet des vibrations, à se déplacer et osciller, entre les lames de contact, dans un plan parallèle aux parois inférieure et supérieure. De tels déplacements peuvent être à l'origine d'une dégradation de la qualité du contact électrique entre les contacts mâle et femelle ainsi connectés.It may be advantageous to be able to use this type of female contact with male contacts of various shapes and sizes, without having to design and manufacture a suitable and adjusted female contact for each male contact shape or size. For example, in the case of male contact with a tongue of flattened shape, the contact blades exert pressure on the main faces of the tongue (essentially parallel to the upper and lower walls of the cage), to establish between them a electric contact. However, the tongue can be caused under the effect of vibrations to move and oscillate between the contact blades, in a plane parallel to the lower and upper walls. Such movements can be the cause of a degradation in the quality of the electrical contact between the male and female contacts thus connected.
Un but de l'invention est de palier au moins partiellement ce problème et d'augmenter la persistance dans le temps d'une bonne qualité de contact entre les contacts mâle et femelle.An object of the invention is to at least partially overcome this problem and to increase the persistence over time of a good quality of contact between the male and female contacts.
A cette fin, on réalise selon la revendication 1 un contact électrique femelle du type de celui décrit ci-dessus, avec manchon, dans lequel au moins l'une des parois latérales comporte au moins une lame de maintien. Cette lame de maintien est élastique et découpée dans une paroi latérale. Elle reste attachée à la paroi latérale dans laquelle elle est découpée au niveau d'une jonction. Cette jonction est plus proche de l'extrémité d'appariement que de l'extrémité de fixation. La lame de maintien s'étend à partir de la jonction vers une extrémité libre située plus proche de l'extrémité de fixation que de l'extrémité d'appariement. L'extrémité libre fait saillie dans l'espace interne. Le contact comporte un manchon enveloppant, par l'extérieur de la cage, au moins partiellement les parois inférieure, supérieure et latérales. Chaque lame de maintien comporte une zone de pression prenant appui sur le manchon lorsqu'une languette de contact mâle est logée dans la cage.To this end, according to claim 1, a female electrical contact of the type of that described above is produced, with a sleeve, in which at least one of the side walls comprises at least one retaining blade. This retaining blade is elastic and cut in a side wall. It remains attached to the side wall in which it is cut at a junction. This junction is closer to the mating end than to the attachment end. The retaining blade extends from the junction to a free end located closer to the attachment end than to the mating end. The free end protrudes into the internal space. The contact comprises a sleeve enveloping, through the outside of the cage, at least partially the lower, upper and side walls. Each retaining blade has a pressure zone bearing on the sleeve when a male contact tab is housed in the cage.
Grâce à ces dispositions, chaque lame de maintien latérale coopère de manière élastique avec un bord de la languette du contact mâle, afin de limiter ses mouvements dans le contact femelle dans lequel il est logé. Par exemple, chaque lame de maintien peut coopérer avec un bord (essentiellement perpendiculaire aux faces principales) de la languette du contact mâle, afin de limiter, dans la cage, ses mouvements parallèles aux parois inférieure et supérieure.Thanks to these arrangements, each lateral retaining blade cooperates elastically with an edge of the tongue of the male contact, in order to limit its movements in the female contact in which it is housed. For example, each retaining strip can cooperate with an edge (essentially perpendicular to the main faces) of the tab of the male contact, in order to limit, in the cage, its movements parallel to the lower and upper walls.
Le contact électrique femelle selon l'invention peut en outre comporter l'une ou l'autre des caractéristiques suivantes considérées isolément ou en combinaison d'une ou plusieurs autres :
- le manchon et/ou la cage comporte deux rampes, chacune repliée vers l'intérieur et/ou l'extérieur de la cage ; par exemple, ces deux rampes sont repliées vers les parois latérales et l'espace interne de la cage, au niveau de l'extrémité d'appariement ce cette dernière ;
- les lames de contact correspondant aux parois supérieure et inférieure comportent, au niveau de leur extrémité libre, une arête entre deux surfaces formant un angle aigu avec un plan parallèle aux parois inférieure et supérieure ;
- les lames de contact correspondant aux parois supérieure et inférieure sont liées à la cage au niveau des parois latérales ;
- la cage est intégralement formée d'une seule pièce ;
- la paroi supérieure de la cage comporte une ligne de jonction entre deux bords d'un flan replié ; et
- la ligne de jonction est au moins partiellement recouverte d'une portion continue du manchon s'étendant au-dessus et parallèlement à la paroi supérieure de la cage et repliée de part et d'autre de celle-ci parallèlement aux parois latérales.
- the sleeve and / or the cage comprises two ramps, each folded towards the inside and / or the outside of the cage; for example, these two ramps are folded towards the side walls and the internal space of the cage, at the level of the matching end thereof;
- the contact blades corresponding to the upper and lower walls comprise, at their free end, an edge between two surfaces forming an acute angle with a plane parallel to the lower and upper walls;
- the contact blades corresponding to the upper and lower walls are linked to the cage at the level of the side walls;
- the cage is integrally formed in one piece;
- the upper wall of the cage has a junction line between two edges of a folded blank; and
- the junction line is at least partially covered with a continuous portion of the sleeve extending above and parallel to the upper wall of the cage and folded over on either side of the latter parallel to the side walls.
Selon un autre aspect l'invention concerne un ensemble de connexion. Un tel ensemble de connexion peut par exemple comprendre un connecteur et un contre-connecteur électriques comportant respectivement un contact électrique femelle selon l'invention, avec deux lames de maintien, et un contact électrique mâle ayant une languette avec une dimension, perpendiculairement à la direction longitudinale et parallèlement aux parois inférieure et supérieure, inférieure à la dimension interne correspondante de la cage, et supérieure à l'écartement entre les extrémités libres des lames de maintien (lorsqu'elles ne sont pas contraintes, avant insertion de la languette dans la cage).According to another aspect, the invention relates to a connection assembly. Such a connection assembly can for example comprise an electrical connector and a counter-connector comprising respectively a female electrical contact according to the invention, with two retaining blades, and a male electrical contact having a tab with one dimension, perpendicular to the direction. longitudinal and parallel to the lower and upper walls, less than the corresponding internal dimension of the cage, and greater than the distance between the free ends of the retaining blades (when they are not constrained, before insertion of the tongue into the cage ).
Cet ensemble de connexion comporte éventuellement une languette ayant une forme en coupe transversale de parallélépipède aplati, et les lames de maintien prennent appui chacune respectivement sur un bord de la languette correspondant au petit côté de ce parallélépipède.This connection assembly optionally comprises a tongue having the shape in cross section of a flattened parallelepiped, and the retaining blades each bear respectively on an edge of the tongue corresponding to the short side of this parallelepiped.
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit ainsi que sur les dessins annexés. Sur ces dessins :
- la
figure 1 représente schématiquement en perspective un ensemble ce connexion comprenant un contact mâle et un contact femelle ; - la
figure 2 représente schématiquement en perspective la cage du contact femelle de lafigure 1 ; - la
figure 3 représente schématiquement en perspective, vue essentiellement de face, la cage de lafigure 2 ; - la
figure 4 représente schématiquement en perspective et en coupe, vue essentiellement de dessus, la cage desfigures 2 et 3 ; - la
figure 5 représente schématiquement en perspective et en coupe, vue essentiellement de dessus, la cage desfigures 2 et 3 , avec un manchon autour de la cage et une languette de contact mâle inséré dans la cage ; - les
figures 6A et 6B représentent chacune une languette de contact mâle ayant une forme différente de celle insérée dans la cage du contact femelle représenté sur lafigure 5 ; - les
figures 7A et 7B représentent en coupe longitudinale une variante de la cage du contact femelle représenté sur lesfigures 1 à 5 , avec une languette de contact mâle insérée dans la cage ; et - les
figures 8A et 8B représentent en coupe longitudinale une autre variante de la cage du contact femelle représenté sur lesfigures 1 à 5 , avec une languette de contact mâle insérée dans la cage.
- the
figure 1 schematically shows in perspective an assembly of this connection comprising a male contact and a female contact; - the
figure 2 schematically represents in perspective the cage of the female contact of thefigure 1 ; - the
figure 3 schematically represents in perspective, seen mainly from the front, the cage of thefigure 2 ; - the
figure 4 schematically represents in perspective and in section, seen mainly from above, the cage offigures 2 and 3 ; - the
figure 5 schematically represents in perspective and in section, seen mainly from above, the cage offigures 2 and 3 , with a sleeve around the cage and a male contact tab inserted into the cage; - the
figures 6A and 6B each represent a male contact tab having a different shape from that inserted in the cage of the female contact shown infigure 5 ; - the
figures 7A and 7B show in longitudinal section a variant of the cage of the female contact shown in thefigures 1 to 5 , with a male contact tab inserted into the cage; and - the
figures 8A and 8B show in longitudinal section another variant of the cage of the female contact shown in thefigures 1 to 5 , with a male contact tab inserted into the cage.
Dans ce document les termes « avant », « arrière », « dessus », « dessous », etc. sont purement conventionnels et font, le cas échéant, référence aux orientations telles que représentées sur les figures.In this document the terms “front”, “rear”, “top”, “bottom”, etc. are purely conventional and refer, where appropriate, to the orientations as shown in the figures.
L'ensemble de connexion 100 représenté sur la
Les contacts femelle 1 et mâle 2 sont accouplés, ou appariés, électriquement et mécaniquement en insérant la languette 3 dans la cage 4 du contact femelle 1, dans une direction d'insertion essentiellement parallèle à la direction longitudinale L des contacts mâle 2 et femelle 1.The female 1 and male 2 contacts are coupled, or paired, electrically and mechanically by inserting the
Le contact femelle 1 comprend aussi une portion de fixation 5 prolongeant la cage 4, vers l'arrière de celle-ci, dans la direction longitudinale L. La portion de fixation 5 est adaptée dans le cas présent pour recevoir et y sertir l'extrémité d'un câble (non représenté). Le contact femelle 1 comprend également un manchon protecteur 6.The female contact 1 also comprises a fixing
La cage 4 est obtenue par emboutissage et pliage d'une tôle de matériau conducteur (cuivre ou aluminium ou un alliage de ces métaux par exemple). Le manchon 6 est également obtenu par emboutissage et pliage d'une tôle de matériau conducteur (acier par exemple).The
Comme représenté sur la
Pour le mode de réalisation décrit ici, la cage 4 est formée d'une seule pièce, en repliant, parallèlement à la direction longitudinale L, une forme découpée par emboutissage et en ramenant les bords du flan d'emboutissage, l'un vers l'autre, sensiblement au niveau d'une ligne de jonction 12 médiane de la paroi supérieure 10 de la cage 4. La ligne de jonction 12 est en partie recouverte d'une portion continue 24 du manchon 6 (voir
Les parois supérieure 12 et inférieure 9 comprennent chacune deux lames de contact 13 élastiques et s'étendant, à partir de la cage 4 vers une extrémité libre 14, transversalement par rapport à la direction longitudinale L. Dans le mode de réalisation décrit ici, les lames de contact 13 correspondant aux parois supérieure 10 et inférieure 9 sont liées à la cage au niveau des parois latérales 11. On peut constater que des découpes relativement larges sont ménagées autour de ces lames de contact 13. Ainsi, une certaine élasticité est conférée à la cage 4 qui permet d'amortir une partie de l'énergie des vibrations et limite les déplacements relatifs éventuels entre la languette 3 et les lames de contact 13. Ainsi, cette élasticité assure une bonne tenue aux vibrations, en même temps de bonnes performances électriques.The upper 12 and lower 9 walls each comprise two
Comme représenté sur la
Les parois latérales 11 comportent chacune une lame de maintien 16, élastique découpée dans une paroi latérale à laquelle elle reste attachée au niveau d'une jonction 17. Chacune lame de maintien 16 s'étend donc à partir d'une jonction 17 vers une extrémité libre 18. Chaque lame de maintien 16 est repliée vers l'arrière de la cage 4, c'est-à-dire vers l'extrémité de fixation 5, afin de faciliter l'insertion de la languette 3 dans la cage 4 à partir de l'ouverture correspondant à l'extrémité d'appariement 7. Comme on peut le remarquer sur les
Chaque paroi latérale 11 comporte une fenêtre 20 correspondant à la portion de la cage 4 découpée pour former une lame de maintien 16 respective.Each
Chacune lame de maintien 16 a, en coupe longitudinale, parallèlement aux parois inférieure 9 et supérieure 10, une forme en « S ». Comme représenté sur la
Comme on peut le voir sur la
Le manchon 6 comporte également, sur sa face interne, des nervures 22 interférant avec la surface externe des parois latérales 11 de la cage 4, et contribuant également à limiter le déplacement transversal (dans un plan parallèle aux parois supérieure 10 et inférieure 9) de la languette 3 par rapport à la cage 4.The
Grâce aux lames de maintien 16, on peut réduire les déplacements relatifs transversaux de la languette 3 dans la cage 4 à 0,8µm ou moins. Pour cet exemple précis, la largeur moyenne de la languette est d'environ 1.2mm, et la largeur de la cage est de 1.8mm.Thanks to the
Des variantes du mode de réalisation précédent sont décrites ci-dessous en relation avec les
La variante des
La variante des
D'une manière générale, le contact femelle selon l'invention peut, grâce à l'élasticité de la, ou des, lame(s) latérale(s), permettre d'accommoder plusieurs formes et dimensions de languettes 3 tout en conservant, voire en améliorant, les performances lorsque les contacts femelle 1 et mâle 2 sont soumis à des vibrations.In general, the female contact according to the invention can, thanks to the elasticity of the side blade (s), make it possible to accommodate several shapes and sizes of
Eventuellement, si le contact femelle n'est pas entouré d'un manchon, et que le contact femelle est constitué d'une seule pièce, ce qui vient d'être décrit ci-dessus en relation avec le manchon 6 peut être transposé aux surfaces internes d'un boîtier dans lequel est logé le contact femelle 1.Optionally, if the female contact is not surrounded by a sleeve, and the female contact consists of a single piece, what has just been described above in relation to the
Claims (9)
- Female electrical contact (1) comprising a cage (4) extending in a longitudinal direction between- a mating end (7) provided with an opening through which a tongue (3) of a male contact (2) can be inserted into the cage (4),- a securing end (8) from which the female contact (1) extends in the form of a securing portion (5) to which a cable may be secured and electrically connected,the cage (4) comprises a bottom wall (9), a top wall (10) and two side walls (11) extending between the bottom wall (9) and top wall (10), said bottom wall (9), top wall (10) and side walls (11) delimiting an internal space suitable for receiving and housing the tongue (3) of the male contact (2) inserted through the opening, the top wall (10) and bottom wall (9) each comprising at least one contact blade (13), which is elastic and extends, from the cage (4) towards a free end (14), transversely with respect to the longitudinal direction (L),
characterized in that at least one of the side walls (11) has at least one retaining blade (16) which is elastic and cut into a side wall (11) to which it remains attached at a junction (17) which is closer to the mating end (7) than to the securing end (8), and which extends from the junction (17) towards a free end (18) located closer to the securing end (8) than to the mating end (7), the free end (18) protruding into the internal space;
and in that the female electrical contact comprises a sleeve (6) which surrounds the bottom wall (9), top wall (10) and side walls (11), at least partially, on the outside of the cage (4), each retaining blade (16) having a pressure zone bearing on the sleeve (6) when a tongue (3) of the male contact (2) is housed in the cage (4). - Contact according to Claim 1, wherein the sleeve (6) has two ramps (21), each bent towards the side walls (11) and the internal space of the cage (4), at the mating end (7) thereof.
- Contact according to either of the preceding claims, wherein the contact blades (13) corresponding to the top wall (10) and bottom wall (9) have, at their free end (14), a ridge (15) between two surfaces forming an acute angle with a plane parallel to the bottom wall (9) and top wall (10).
- Contact according to one of the preceding claims, wherein the contact blades (13) corresponding to the top wall (10) and bottom wall (9) are connected to the cage (4) at the side walls (11).
- Contact according to one of the preceding claims, wherein the cage (4) is integrally formed in one piece.
- Contact according to one of the preceding claims, wherein the top wall (10) of the cage (4) has a junction line (12) between two edges of a bent blank.
- Contact according to Claim 6, wherein the junction line (12) is at least partially covered by a continuous portion (24) of the sleeve extending above and parallel to the top wall (10) of the cage (4) and bent, on either side thereof, parallel to the side walls (11).
- Connection assembly having a female electrical contact (1) according to one of the preceding claims, having two retaining blades (16) and a male electrical contact (2) having a tongue (3) with a dimension, perpendicular to the longitudinal direction (L) and parallel to the bottom wall (9) and top wall (10), less than the corresponding internal dimension of the cage (4), and greater than the spacing between the free ends (18) of the retaining blades (16).
- Connection assembly according to Claim 8, wherein the tongue (3) has a cross-sectional shape of a flattened parallelepiped, and the retaining blades (16) each bear respectively on a short side of this parallelepiped.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1562689A FR3045964B1 (en) | 2015-12-17 | 2015-12-17 | FEMALE CONTACT WITH LATERAL HOLDING BLADES FOR MALE CONTACT AND CONNECTING ASSEMBLY COMPRISING SUCH FEMALE AND MALE CONTACTS |
PCT/EP2016/080791 WO2017102725A1 (en) | 2015-12-17 | 2016-12-13 | Female contact with lateral retaining blades for male contact and connection assembly including such female and male contacts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3391474A1 EP3391474A1 (en) | 2018-10-24 |
EP3391474B1 true EP3391474B1 (en) | 2021-02-03 |
Family
ID=55646756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16810358.8A Active EP3391474B1 (en) | 2015-12-17 | 2016-12-13 | Contact femelle avec lames latérales de maintien pour contact mâle et ensemble de connexion comportant de tels contacts femelle et mâle |
Country Status (7)
Country | Link |
---|---|
US (2) | US20180375241A1 (en) |
EP (1) | EP3391474B1 (en) |
JP (1) | JP2018537832A (en) |
KR (1) | KR20180093928A (en) |
CN (1) | CN108370112B (en) |
FR (1) | FR3045964B1 (en) |
WO (1) | WO2017102725A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI725721B (en) * | 2020-01-22 | 2021-04-21 | 凡甲科技股份有限公司 | Contact |
TWI802862B (en) * | 2021-04-01 | 2023-05-21 | 華碩電腦股份有限公司 | Connector assembly and female connector |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3660806A (en) * | 1970-10-07 | 1972-05-02 | Thomas & Betts Corp | Connector |
FR2749440B1 (en) * | 1996-06-03 | 1998-10-30 | Framatome Connectors Int | REINFORCED CAGE TYPE FEMALE ELECTRIC CONTACT TERMINAL |
DE19734523C2 (en) * | 1997-08-08 | 1999-07-29 | Framatome Connectors Int | Connector sleeve |
KR20030059831A (en) * | 2000-12-07 | 2003-07-10 | 에프씨아이 | Female contact having a cage structure comprising a blade-holder module |
JP2003022859A (en) * | 2001-07-06 | 2003-01-24 | Japan Aviation Electronics Industry Ltd | Socket contact |
US6790101B1 (en) * | 2003-07-15 | 2004-09-14 | Molex Incorporated | Female terminal with sacrificial arc discharge contacts |
US6945830B2 (en) * | 2003-10-20 | 2005-09-20 | Tyco Electronics Corporation | Connector system having opposing biasing beam and lance |
JP2008140589A (en) * | 2006-11-30 | 2008-06-19 | Yazaki Corp | Female terminal |
DE102009030463A1 (en) * | 2009-06-25 | 2010-12-30 | Lapp Engineering & Co. | Electrical connector |
JP5720507B2 (en) * | 2011-05-19 | 2015-05-20 | 住友電装株式会社 | Terminal fittings and connectors |
JP2014053076A (en) * | 2012-09-05 | 2014-03-20 | Sumitomo Wiring Syst Ltd | Female terminal |
CN203826623U (en) * | 2014-02-14 | 2014-09-10 | 萧至仁 | Hollow terminal structure |
CN203942065U (en) * | 2014-07-07 | 2014-11-12 | 泰科电子(上海)有限公司 | Parent form terminal and electric connector |
EP3240114B1 (en) * | 2016-04-25 | 2019-01-23 | Aptiv Technologies Limited | Electrical contact terminal and method to manufacture the same |
-
2015
- 2015-12-17 FR FR1562689A patent/FR3045964B1/en active Active
-
2016
- 2016-12-13 KR KR1020187016621A patent/KR20180093928A/en unknown
- 2016-12-13 JP JP2018531641A patent/JP2018537832A/en active Pending
- 2016-12-13 WO PCT/EP2016/080791 patent/WO2017102725A1/en active Application Filing
- 2016-12-13 CN CN201680071349.1A patent/CN108370112B/en active Active
- 2016-12-13 EP EP16810358.8A patent/EP3391474B1/en active Active
- 2016-12-13 US US16/062,381 patent/US20180375241A1/en not_active Abandoned
-
2019
- 2019-11-07 US US16/677,058 patent/US20200076106A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
KR20180093928A (en) | 2018-08-22 |
CN108370112B (en) | 2020-05-12 |
US20180375241A1 (en) | 2018-12-27 |
FR3045964B1 (en) | 2018-06-15 |
FR3045964A1 (en) | 2017-06-23 |
CN108370112A (en) | 2018-08-03 |
WO2017102725A1 (en) | 2017-06-22 |
JP2018537832A (en) | 2018-12-20 |
US20200076106A1 (en) | 2020-03-05 |
EP3391474A1 (en) | 2018-10-24 |
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