EP1979990A1 - Obturator for a compartment of a junction unit and junction unit equipped with such a obturator - Google Patents

Obturator for a compartment of a junction unit and junction unit equipped with such a obturator

Info

Publication number
EP1979990A1
EP1979990A1 EP06709142A EP06709142A EP1979990A1 EP 1979990 A1 EP1979990 A1 EP 1979990A1 EP 06709142 A EP06709142 A EP 06709142A EP 06709142 A EP06709142 A EP 06709142A EP 1979990 A1 EP1979990 A1 EP 1979990A1
Authority
EP
European Patent Office
Prior art keywords
plug
housing
rear portion
cap according
retention
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
EP06709142A
Other languages
German (de)
French (fr)
Other versions
EP1979990B1 (en
Inventor
Frédéric CHAZOTTES
Christian Campfort
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.)
Delphi Connection Systems Holding France SAS
Original Assignee
FCI SA
Framatome Connectors International SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FCI SA, Framatome Connectors International SAS filed Critical FCI SA
Publication of EP1979990A1 publication Critical patent/EP1979990A1/en
Application granted granted Critical
Publication of EP1979990B1 publication Critical patent/EP1979990B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5213—Covers

Definitions

  • the present invention relates to a plug for preserving the tightness of waterproof connectors under equipped with contacts and cables, which is installed in the free cells of these connectors.
  • Plugs for insertion into free cells of sealed electrical connector housings exist and Figure 1A shows such plug of the prior art.
  • the cap according to this figure is a plug made of cylindrical thermoplastic material which comprises annular shoulders for retaining the stopper, coming to be positioned on either side of the sealing grommet disposed at the rear of the connector casing during the introduction. plug in the cell.
  • the present invention aims to provide a plug with a good seal over time, easy insertion and a secure hold in the cell of the connector housing.
  • the present invention provides in the first place a cap, for connector housing cell, comprising a front sealing part with a grommet fitted to the rear of the connector housing and a rear portion defining a retention area of the plug in a rear passage of the case connector, the front portion and the rear portion being joined by a transition zone.
  • the invention relates to an electrical connector housing equipped with at least one plug received in a rear passage of the cells of the connector.
  • the retention is obtained by an elastic deformation of the rear part of the stopper.
  • it could be obtained by elastic deformation of the rear passage of the housing.
  • the rear passage is an opening preferentially in a rear grid of passage of the cables and retention of the grommet.
  • the opening of the rear gate and the rear part of the cap are of different sections to make point contact areas between the cap surface and the wall of the opening of the gate.
  • FIGS. 1A and 1B a plug of the prior art respectively in perspective and in section received in a connector housing
  • Figures 2A, 2B and 2C are perspective and sectional views of a first embodiment of a plug according to the invention associated with a connector housing
  • in Figure 3 a sectional view of a connector housing portion equipped with plugs according to the invention
  • in Figure 4 an enlarged view of Figure 3
  • in FIG. 5 a view from the rear of the connector housing of FIG. 3 at the level of a cell opening equipped with a plug according to FIG. 2C
  • FIGS. 6A, 6B, 6C, 6D alternative embodiments of plugs according to the invention.
  • the present invention relates to a sealing plug adapted to fit into a socket of connector housing, when it is not equipped with a contact and a cable connected to this contact.
  • FIG. 1A A cap A of the prior art is shown in FIG. 1A.
  • This plug of thermoplastic material comprises two annular shoulders B, retaining the plug, coming; when the plug is inserted into the cell, positioned on either side of the sealing grommet 13 disposed at the rear of the connector housing 11 as shown in FIG. 1B.
  • the correct positioning of the plug of the prior art is obtained when the shoulders are disposed abutting on either side of the lips of the grommet and the rear portion of the plug does not participate in its retention .
  • the cap If the cap is inserted with too much force, it can go too far, the rear annular shoulder of the cap passing between the lips of the grommet which reduces the seal between the cap and the grommet.
  • a first embodiment of a plug 1 according to the present invention is shown in Figures 2A, 2B in combination with a connector housing for receiving it and in Figure 2C in perspective on the front part of the seal and face.
  • the housing 11 of the connector is, according to the example, a housing for coupling with a complementary housing not shown and for receiving electrical contacts provided with cables coming out of the back of the housing as known elsewhere.
  • the plugs according to the invention serve to plug cells that are not equipped with cables and contacts so as to preserve the tightness of a sub-equipped connector.
  • the plug 1 finds its application for example in the case of a sealed automotive connector designed to receive several beam cables including optional cables depending on the vehicle version.
  • the housing 11 seen in section in FIG. 2B comprises a front portion 11a for retention of the contacts, an intermediate portion 11b in a bowl in which a grommet-type seal 13 is housed and a rear part constituted by a skirt receiving a grating. 19 keeping the grommet.
  • the grid is an insert grid which fits into the housing above the grommet and closes the rear of the housing but it is possible to consider a grid part of a rear housing element or integral housing .
  • the plug 1 fits through the grid and has a front portion
  • the front portion 12 of the plug is smooth cylindrical and is inserted between the lips of the grommet 13 so as to achieve, with these lips, sealed barriers.
  • the cap according to the invention further comprises a rear portion 14 defining a retention zone of the plug by clamping in a rear passage 15 of the connector housing and constituted by the holes of the gate, the clamping being obtained by elastic deformation of the part rear 14 of the cap.
  • the tightening of the cap is between the inner wall of the rear passage 15 and the outer surface of the rear portion 14 of the cap.
  • the front portion 12 and the rear portion 14 are joined by a transition zone 16.
  • this transition zone comprises a recess so that the diameter of the rear portion 14 at the transition zone is greater than the diameter of the front portion 12 .
  • the rear portion 14 is made hollow to allow deformation of the plug in its portion in contact with the inner wall of the rear passage.
  • the rear portion 14 is generally conical in shape of increasing diameter from the transition zone 16. This conical general shape of the rear portion 14 of the plug allows a progressive growth of the clamping force of the plug as it penetrates the rear passage 15 extending the cell, so as not to oppose too much resistance to the insertion of the plug.
  • One of the advantages of the present solution is to dissociate the means providing the seal and the means achieving the retention of the plug.
  • the seal is made on the front part of the stopper and the insertion force and the retention of the stopper are made by the rear of the stopper.
  • an advantage of the invention is to allow to adapt the retention profile of the cap according to the profile of the rear passage and the characteristics of the rear wall.
  • FIGS. 6A to 6D present several possible variants of the invention adapted to profiles of rear passages of various cells.
  • the rear portion of the plug 2, 3 is of circular section and at least the distal end of the rear portion 14 has grooves 17.
  • two or four grooves are formed. These grooves facilitate the crushing of the rear part of the plug during its introduction into a rear passage, in particular a cylindrical passage, they limit the insertion forces while providing a radial elastic return ensuring effective retention.
  • At least the distal end of the caps 4, 5 is oval.
  • the plug 5 is further provided with grooves 17.
  • Such caps are particularly useful for rectangular rear passages so as to limit the contact areas of the plug with the wall of the rear passage 15.
  • the rear part 14 of the plugs 6, 7, 8, 9 comprises, with respect to a form of revolution, bulges 18 directed towards the outside.
  • the plugs of FIG. 6C are of triangular general section with three bulges for the plug according to the reference 6 and three grooves 17 and three bulges 18 for the plug according to the reference 7.
  • the plugs 8, 9 of FIG. 6D comprise, for their part, four bulges, these bulges being separated by four grooves for the plug under the reference numeral 9.
  • the rear passage 15 of the connector housing shown in Figure 2B is an opening of a rear grid 19 of the housing ensuring the retention of the grommet and a guide of the cables at the output of the connector to prevent a cable does not laterally force the grommet and reduce the sealing of the connector.
  • the openings of this rear gate may have a shape adapted to pre-guide the contact during its introduction into the housing 11 or to perform a keying to require that the insertion of the contact is made only in one orientation.
  • the rear passage 15 and the rear portion 14 of the plug are each provided with contours of different shapes and adapted to achieve disjoint contact areas 20, 21, 22 between the outer surface of the plug and the wall surrounding the back passage in the grid.
  • the passage 15 comprises re-entrant wedges 24 and 25.
  • FIG. 4 represents, in such a configuration, the contact zone marked as 22 in FIG.
  • the diametrically opposite portion of the plug is free of contact with the wall of the passage made in the grid 19.
  • the invention is not limited to the examples shown and in particular, the distal end of the rear part of the plug may be provided with a collar completely plugging the cell without departing from the scope of the invention.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The subject of the invention is a plug for a socket of a connector housing including a sealing front part with a mat-seal equipping the rear of connector housing, and a rear part defining a zone for holding the plug in a rear passage of the connector housing, front part and rear part being connected by a transition zone.

Description

BOUCHON POUR ALVEOLE DE BOITIER DE CONNECTEUR ET BOITIER DE CONNECTEUR EQUIP D ' UN BOUCHONPLUG FOR CONNECTOR HOUSING ALVEOLE AND CONNECTOR HOUSING WITH A PLUG
La présente invention concerne un bouchon pour préserver l'étanchéité des connecteurs étanches sous équipés en contacts et câbles, lequel s'installe dans les alvéoles libres de ces connecteurs.The present invention relates to a plug for preserving the tightness of waterproof connectors under equipped with contacts and cables, which is installed in the free cells of these connectors.
Ces bouchons doivent être simples à fabriquer et de faible coût tout en offrant une bonne étanchéité tout au long de la vie du connecteur et une bonne fiabilité de leur maintien dans les alvéoles.These plugs must be simple to manufacture and low cost while providing a good seal throughout the life of the connector and a good reliability of their maintenance in the cells.
Des bouchons destinés à s'insérer dans des alvéoles libres des boîtiers de connecteurs électriques étanches existent et la figure 1A représente un tel bouchon de l'art antérieur. Le bouchon selon cette figure est un bouchon en matière thermoplastique cylindrique qui comporte des épaulements annulaires de rétention du bouchon, venant se positionner de part et d'autre du grommet d'étanchéité disposé à l'arrière du boîtier de connecteur lors de l'introduction du bouchon dans l'alvéole.Plugs for insertion into free cells of sealed electrical connector housings exist and Figure 1A shows such plug of the prior art. The cap according to this figure is a plug made of cylindrical thermoplastic material which comprises annular shoulders for retaining the stopper, coming to be positioned on either side of the sealing grommet disposed at the rear of the connector casing during the introduction. plug in the cell.
Ces épaulements obligent à mouler le bouchon avec un outillage comportant un plan de joint selon un axe longitudinal du bouchon ce qui conduit à l'existence de bavures longitudinales sur la face externe du bouchon.These shoulders force to mold the plug with a tool having a joint plane along a longitudinal axis of the plug which leads to the existence of longitudinal burrs on the outer face of the plug.
Ces bavures se trouvent dans la zone qui assure l'étanchéité entre le grommet et le bouchon et créent des risques de fuites au long de la vie du connecteur. En outre, le positionnement correct du bouchon de l'art antérieur est obtenu lorsque les épaulements sont disposés de part et d'autre des lèvres du grommet et si un défaut de positionnement existe, l'étanchéité du connecteur peut être remise en cause.These burrs are in the area that seals between the grommet and the cap and create risks of leakage throughout the life of the connector. In addition, the correct positioning of the cap of the prior art is obtained when the shoulders are arranged on either side of the lips of the grommet and if a positioning defect exists, the sealing of the connector can be questioned.
La présente invention vise à réaliser un bouchon offrant une bonne étanchéité dans le temps, une insertion aisée et un maintien assuré dans l'alvéole du boîtier de connecteur.The present invention aims to provide a plug with a good seal over time, easy insertion and a secure hold in the cell of the connector housing.
Pour ce faire, la présente invention prévoit en premier lieu un bouchon, pour alvéole de boîtier de connecteur, comprenant une partie avant d'étanchéité avec un grommet équipant l'arrière du boîtier de connecteur et une partie arrière définissant une zone de rétention du bouchon dans un passage arrière du boîtier de connecteur, la partie avant et la partie arrière étant jointes par une zone de transition.To do this, the present invention provides in the first place a cap, for connector housing cell, comprising a front sealing part with a grommet fitted to the rear of the connector housing and a rear portion defining a retention area of the plug in a rear passage of the case connector, the front portion and the rear portion being joined by a transition zone.
En outre, l'invention concerne un boîtier de connecteur électrique équipé d'au moins un bouchon reçu dans un passage arrière des alvéoles du connecteur. De préférence, la rétention est obtenue par une déformation élastique de la partie arrière du bouchon. Alternativement elle pourrait être obtenue par une déformation élastique du passage arrière du boîtier.In addition, the invention relates to an electrical connector housing equipped with at least one plug received in a rear passage of the cells of the connector. Preferably, the retention is obtained by an elastic deformation of the rear part of the stopper. Alternatively it could be obtained by elastic deformation of the rear passage of the housing.
Le passage arrière est une ouverture préférentiellement dans une grille arrière de passage des câbles et de rétention du grommet. En particulier, l'ouverture de la grille arrière et la partie arrière du bouchon sont de sections différentes pour réaliser des zones de contact ponctuelles entre la surface du bouchon et la paroi de l'ouverture de la grille.The rear passage is an opening preferentially in a rear grid of passage of the cables and retention of the grommet. In particular, the opening of the rear gate and the rear part of the cap are of different sections to make point contact areas between the cap surface and the wall of the opening of the gate.
D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description d'un exemple de réalisation non limitatif de l'invention accompagné des dessins qui représentent: aux figures 1 A et 1 B: un bouchon de l'art antérieur respectivement en perspective et en coupe reçu dans un boîtier de connecteur; aux figures 2A, 2B et 2C: des vues en perspective et en coupe, d'un premier mode de réalisation d'un bouchon selon l'invention associé à un boîtier de connecteur; en figure 3: une vue en coupe d'une partie de boîtier de connecteur équipée de bouchons selon l'invention; en figure 4: une vue agrandie de la figure 3; en figure 5: une vue de l'arrière du boîtier de connecteur de la figure 3 au niveau d'une ouverture d'alvéole équipé d'un bouchon selon la figure 2C; aux figures 6A, 6B, 6C, 6D: des réalisations alternatives de bouchons selon l'invention.Other characteristics and advantages of the invention will be better understood on reading the description of a nonlimiting exemplary embodiment of the invention accompanied by the drawings which represent: in FIGS. 1A and 1B: a plug of the prior art respectively in perspective and in section received in a connector housing; Figures 2A, 2B and 2C are perspective and sectional views of a first embodiment of a plug according to the invention associated with a connector housing; in Figure 3: a sectional view of a connector housing portion equipped with plugs according to the invention; in Figure 4: an enlarged view of Figure 3; in FIG. 5: a view from the rear of the connector housing of FIG. 3 at the level of a cell opening equipped with a plug according to FIG. 2C; in FIGS. 6A, 6B, 6C, 6D: alternative embodiments of plugs according to the invention.
La présente invention concerne un bouchon d'étanchéité adapté à s'insérer dans une alvéole de boîtier de connecteur, lorsque celle-ci est non équipée d'un contact et d'un câble raccordé à ce contact.The present invention relates to a sealing plug adapted to fit into a socket of connector housing, when it is not equipped with a contact and a cable connected to this contact.
Un bouchon A de l'art antérieur est représenté en figure 1A. Ce bouchon en matière thermoplastique comporte deux épaulements annulaires B, de rétention du bouchon, venant; lors de l'introduction du bouchon dans l'alvéole, se positionner de part et d'autre du grommet d'étanchéité 13 disposé à l'arrière du boîtier 11 de connecteur comme représenté en figure 1B.A cap A of the prior art is shown in FIG. 1A. This plug of thermoplastic material comprises two annular shoulders B, retaining the plug, coming; when the plug is inserted into the cell, positioned on either side of the sealing grommet 13 disposed at the rear of the connector housing 11 as shown in FIG. 1B.
Du fait de sa géométrie, le moulage d'un tel bouchon nécessite un moule en deux parties qui laisse subsister des bavures longitudinales C sur la surface externe du bouchon.Because of its geometry, the molding of such a plug requires a two-part mold which leaves longitudinal burrs C on the outer surface of the plug.
Ces bavures nuisent à l'étanchéité entre le bouchon et le grommet.These burrs affect the seal between the cap and the grommet.
En outre, comme vu plus haut, le positionnement correct du bouchon de l'art antérieur est obtenu lorsque les épaulements sont disposés en butée de part et d'autre des lèvres du grommet et la partie arrière de ce bouchon ne participe pas à sa rétention.In addition, as seen above, the correct positioning of the plug of the prior art is obtained when the shoulders are disposed abutting on either side of the lips of the grommet and the rear portion of the plug does not participate in its retention .
Si l'on insère le bouchon avec une force trop importante, il peut s'enfoncer trop loin, l'épaulement annulaire arrière du bouchon passant entre les lèvres du grommet ce qui réduit l'étanchéité entre le bouchon et le grommet.If the cap is inserted with too much force, it can go too far, the rear annular shoulder of the cap passing between the lips of the grommet which reduces the seal between the cap and the grommet.
Un premier exemple de réalisation d'un bouchon 1 selon la présente invention est représenté aux figures 2A, 2B en combinaison avec un boîtier de connecteur destiné à le recevoir et à la figure 2C en perspective côté partie avant d'étanchéité et de face.A first embodiment of a plug 1 according to the present invention is shown in Figures 2A, 2B in combination with a connector housing for receiving it and in Figure 2C in perspective on the front part of the seal and face.
Le boîtier 11 de connecteur est, selon l'exemple, un boîtier destiné à s'accoupler avec un boîtier complémentaire non représenté et destiné à recevoir des contacts électriques pourvus de câbles sortant par l'arrière du boîtier comme connu par ailleurs. Les bouchons selon l'invention servent à boucher des alvéoles non équipées de câbles et de contacts en sorte de préserver l'étanchéité d'un connecteur sous équipé.The housing 11 of the connector is, according to the example, a housing for coupling with a complementary housing not shown and for receiving electrical contacts provided with cables coming out of the back of the housing as known elsewhere. The plugs according to the invention serve to plug cells that are not equipped with cables and contacts so as to preserve the tightness of a sub-equipped connector.
Le bouchon 1 selon l'invention trouve son application par exemple dans le cas d'un connecteur automobile étanche prévu pour recevoir plusieurs câbles de faisceaux dont des câbles optionnels selon la version du véhicule.The plug 1 according to the invention finds its application for example in the case of a sealed automotive connector designed to receive several beam cables including optional cables depending on the vehicle version.
Pour un véhicule sous équipé, des alvéoles du connecteur sont dépourvues de câbles et de contacts, ceci pour la vie du véhicule et il est nécessaire de boucher ces alvéoles vides. Le boîtier 11 vu en coupe à la figure 2B comporte une partie avant 11a de rétention des contacts, une partie intermédiaire 11b en cuvette dans laquelle se loge un joint d'étanchéité de type grommet 13 et une partie arrière constituée par une jupe recevant une grille 19 de maintien du grommet. Selon l'exemple représenté, la grille est une grille rapportée qui s'insère dans le boîtier au dessus du grommet et referme l'arrière du boîtier mais il est possible de considérer une grille partie d'un élément de boîtier arrière ou solidaire du boîtier. Le bouchon 1 s'insère au travers de la grille et comporte une partie avantFor a vehicle under equipped, cells of the connector are devoid of cables and contacts, this for the life of the vehicle and it is necessary to plug these empty cells. The housing 11 seen in section in FIG. 2B comprises a front portion 11a for retention of the contacts, an intermediate portion 11b in a bowl in which a grommet-type seal 13 is housed and a rear part constituted by a skirt receiving a grating. 19 keeping the grommet. According to the example shown, the grid is an insert grid which fits into the housing above the grommet and closes the rear of the housing but it is possible to consider a grid part of a rear housing element or integral housing . The plug 1 fits through the grid and has a front portion
12 d'étanchéité avec le grommet 13 équipant l'arrière du boîtier 11.12 sealing with the grommet 13 fitted to the rear of the housing 11.
Selon l'exemple, la partie avant 12 du bouchon est cylindrique lisse et s'insère entre les lèvres du grommet 13 en sorte de réaliser, avec ces lèvres, des barrières étanches. Le bouchon selon l'invention comporte en outre une partie arrière 14 définissant une zone de rétention du bouchon par serrage dans un passage arrière 15 du boîtier de connecteur et constitué par les trous de la grille, le serrage étant obtenu par déformation élastique de la partie arrière 14 du bouchon.According to the example, the front portion 12 of the plug is smooth cylindrical and is inserted between the lips of the grommet 13 so as to achieve, with these lips, sealed barriers. The cap according to the invention further comprises a rear portion 14 defining a retention zone of the plug by clamping in a rear passage 15 of the connector housing and constituted by the holes of the gate, the clamping being obtained by elastic deformation of the part rear 14 of the cap.
Le serrage du bouchon se fait entre la paroi interne du passage arrière 15 et la surface externe de la partie arrière 14 du bouchon.The tightening of the cap is between the inner wall of the rear passage 15 and the outer surface of the rear portion 14 of the cap.
Enfin, selon l'exemple, la partie avant 12 et la partie arrière 14 sont jointes par une zone de transition 16.Finally, according to the example, the front portion 12 and the rear portion 14 are joined by a transition zone 16.
Pour réaliser une butée d'introduction du bouchon dans l'alvéole 10 le recevant, cette zone de transition comporte un décrochement de sorte que le diamètre de la partie arrière 14 au niveau de la zone de transition est supérieur au diamètre de la partie avant 12.To achieve an abutment for introducing the plug into the cell 10 receiving it, this transition zone comprises a recess so that the diameter of the rear portion 14 at the transition zone is greater than the diameter of the front portion 12 .
Selon l'exemple afin d'ajuster la résistance à l'insertion et la force de retenue du bouchon, la partie arrière 14 est réalisée creuse pour permettre une déformation du bouchon dans sa partie en contact avec la paroi interne du passage arrière.According to the example in order to adjust the resistance to insertion and the retaining force of the plug, the rear portion 14 is made hollow to allow deformation of the plug in its portion in contact with the inner wall of the rear passage.
Toujours selon l'exemple, la partie arrière 14 est de forme générale légèrement conique de diamètre croissant à partir de la zone de transition 16. Cette forme générale conique de la partie arrière 14 du bouchon permet une croissance progressive de la force de serrage du bouchon au fur et à mesure de sa pénétration dans le passage arrière 15 prolongeant l'alvéole, en sorte de ne pas opposer une résistance trop importante à l'insertion du bouchon.Still according to the example, the rear portion 14 is generally conical in shape of increasing diameter from the transition zone 16. This conical general shape of the rear portion 14 of the plug allows a progressive growth of the clamping force of the plug as it penetrates the rear passage 15 extending the cell, so as not to oppose too much resistance to the insertion of the plug.
Un des avantages de la présente solution est de dissocier les moyens réalisant l'étanchéité et les moyens réalisant la rétention du bouchon. Selon l'invention, l'étanchéité se fait sur la partie avant du bouchon et l'effort d'insertion et la rétention du bouchon sont réalisés par l'arrière du bouchon.One of the advantages of the present solution is to dissociate the means providing the seal and the means achieving the retention of the plug. According to the invention, the seal is made on the front part of the stopper and the insertion force and the retention of the stopper are made by the rear of the stopper.
En reportant la rétention à l'arrière du bouchon un avantage de l'invention est de permettre d'adapter le profil de rétention du bouchon en fonction du profil du passage arrière et des caractéristiques de la paroi arrière.By postponing the retention at the rear of the cap an advantage of the invention is to allow to adapt the retention profile of the cap according to the profile of the rear passage and the characteristics of the rear wall.
En adaptant la forme de la partie arrière du bouchon en fonction des configurations des trous de la grille, une optimisation des efforts d'insertion et de la rétention sont possibles.By adapting the shape of the rear part of the plug according to the configurations of the holes of the grid, an optimization of the insertion efforts and the retention are possible.
Selon ce principe, les figures 6A à 6D présentent plusieurs variantes possibles de l'invention adaptées à des profils de passages arrières d'alvéoles divers.According to this principle, FIGS. 6A to 6D present several possible variants of the invention adapted to profiles of rear passages of various cells.
Selon la figure 6A, la partie arrière du bouchon 2, 3 est de section circulaire et au moins l'extrémité distale de la partie arrière 14 comporte des rainures 17. Selon les exemples représentés, deux ou quatre rainures sont réalisées. Ces rainures facilitant l'écrasement de la partie arrière du bouchon lors de son introduction dans un passage arrière, notamment un passage cylindrique, elles limitent les efforts d'insertion tout en procurant un retour élastique radial assurant une rétention efficace.According to Figure 6A, the rear portion of the plug 2, 3 is of circular section and at least the distal end of the rear portion 14 has grooves 17. According to the examples shown, two or four grooves are formed. These grooves facilitate the crushing of the rear part of the plug during its introduction into a rear passage, in particular a cylindrical passage, they limit the insertion forces while providing a radial elastic return ensuring effective retention.
Selon la figure 6B, au moins l'extrémité distale des bouchons 4, 5 est ovale. Le bouchon 5 est en outre pourvu de rainures 17.According to Figure 6B, at least the distal end of the caps 4, 5 is oval. The plug 5 is further provided with grooves 17.
De tels bouchons sont particulièrement utilisables pour des passages arrières rectangulaires en sorte de limiter les zones de contact du bouchon avec la paroi du passage arrière 15.Such caps are particularly useful for rectangular rear passages so as to limit the contact areas of the plug with the wall of the rear passage 15.
Selon les figures 6C et 6D, la partie arrière 14 des bouchons 6, 7, 8, 9 comporte, par rapport à une forme de révolution, des renflements 18 dirigés vers l'extérieur. Les bouchons de la figure 6C sont de section générale triangulaire présentant trois renflements pour le bouchon selon le repère 6 et, trois rainures 17 et trois renflements 18 pour le bouchon selon le repère 7.According to FIGS. 6C and 6D, the rear part 14 of the plugs 6, 7, 8, 9 comprises, with respect to a form of revolution, bulges 18 directed towards the outside. The plugs of FIG. 6C are of triangular general section with three bulges for the plug according to the reference 6 and three grooves 17 and three bulges 18 for the plug according to the reference 7.
Les bouchons 8, 9 de la figure 6D comportent pour leur part quatre renflements, ces renflements étant séparés par quatre rainures pour le bouchon sous le repère 9.The plugs 8, 9 of FIG. 6D comprise, for their part, four bulges, these bulges being separated by four grooves for the plug under the reference numeral 9.
Ces dernières géométries de la partie de rétention des bouchons sont particulièrement adaptées dans le cas de passages 15 circulaires ou de forme complexe pour obtenir un effort d'insertion faible tout en conservant une force de rétention importante du bouchon dans l'alvéole.These latter geometries of the plug retention portion are particularly suitable in the case of circular or shaped passages. complex to obtain a low insertion force while maintaining a significant retention force of the plug in the cell.
Le passage arrière 15 du boîtier de connecteur représenté à la figure 2B est une ouverture d'une grille arrière 19 du boîtier assurant la rétention du grommet et un guidage des câbles à la sortie du connecteur pour éviter qu'un câble ne contraigne latéralement le grommet et réduise Pétanchéité du connecteur.The rear passage 15 of the connector housing shown in Figure 2B is an opening of a rear grid 19 of the housing ensuring the retention of the grommet and a guide of the cables at the output of the connector to prevent a cable does not laterally force the grommet and reduce the sealing of the connector.
Les ouvertures de cette grille arrière peuvent avoir une forme adaptée à pré guider le contact lors de son introduction dans le boîtier 11 ou à réaliser un détrompage pour obliger que l'insertion du contact ne se fasse que selon une seule orientation.The openings of this rear gate may have a shape adapted to pre-guide the contact during its introduction into the housing 11 or to perform a keying to require that the insertion of the contact is made only in one orientation.
Il est ainsi prévu selon les différents modes de réalisation des bouchons selon l'invention que le passage arrière 15 et la partie arrière 14 du bouchon soient chacun pourvus de contours de formes différentes et adaptées pour réaliser des zones de contact disjointes 20, 21 , 22 entre la surface externe du bouchon et la paroi entourant le passage arrière dans la grille.It is thus provided according to the various embodiments of the plugs according to the invention that the rear passage 15 and the rear portion 14 of the plug are each provided with contours of different shapes and adapted to achieve disjoint contact areas 20, 21, 22 between the outer surface of the plug and the wall surrounding the back passage in the grid.
Notamment, selon la figure 5, le passage 15 comporte des coins rentrants 24 et 25.In particular, according to FIG. 5, the passage 15 comprises re-entrant wedges 24 and 25.
Il est avantageux de profiter de ces coins pour réaliser des zones de contact limitées et disjointes avec la partie arrière du bouchon et l'on préférera dans ce cas pour cette partie arrière une forme tubulaire de révolution comme celle de l'exemple de la figure 2C.It is advantageous to take advantage of these corners to make limited and disjoint contact areas with the rear part of the plug and it will be preferable in this case for this rear part a tubular shape of revolution as that of the example of Figure 2C .
La vue en coupe de la figure 4 représente dans une telle configuration la zone de contact repérée sous le numéro 22 de la figure 5.The sectional view of FIG. 4 represents, in such a configuration, the contact zone marked as 22 in FIG.
Dans cette configuration, la partie diamétralement opposée du bouchon est libre de contact avec la paroi du passage réalisé dans la grille 19.In this configuration, the diametrically opposite portion of the plug is free of contact with the wall of the passage made in the grid 19.
La rétention par zones multiples sur l'extrémité distale de la partie arrière du bouchon assurant un coincement efficace du bouchon dans l'alvéole, à distance importante de la partie avant d'étanchéité 12, ce qui ne crée aucune contrainte préjudiciable sur cette dernière ou sur les lèvres du grommet. L'invention ne se limite pas aux exemples représentés et en particulier, l'extrémité distale de la partie arrière du bouchon peut être pourvue d'une collerette bouchant totalement l'alvéole sans sortir du cadre de l'invention. The retention by multiple zones on the distal end of the rear part of the cap ensuring effective jamming of the plug in the cell, at a significant distance from the front sealing portion 12, which creates no detrimental stress on the latter or on the lips of the grommet. The invention is not limited to the examples shown and in particular, the distal end of the rear part of the plug may be provided with a collar completely plugging the cell without departing from the scope of the invention.

Claims

R E V E N D I C A T I O N S R E V E N D I C A T IO N S
1 - Bouchon (1 , 2, 3, 4, 5, 6, 7, 8, 9), pour alvéole (10) de boîtier (11 ) de connecteur, comprenant une partie avant (12) faisant étanchéité avec un grommet (13) équipant l'arrière du boîtier (11) de connecteur caractérisé par le fait qu'il comprend une partie arrière (14) définissant une zone de rétention du bouchon dans un passage arrière (15) du boîtier de connecteur, la partie avant (12) et la partie arrière (14) étant jointes par une zone de transition (16).1 - plug (1, 2, 3, 4, 5, 6, 7, 8, 9), for cell (10) of connector housing (11), comprising a front portion (12) sealing with a grommet (13) ) fitted to the rear of the connector housing (11) characterized in that it comprises a rear portion (14) defining a retention area of the plug in a rear passage (15) of the connector housing, the front portion (12) ) and the rear portion (14) being joined by a transition zone (16).
2 - bouchon selon la revendication 1 pour lequel la rétention dans la partie arrière du boîtier est obtenue par déformation élastique.2 - cap according to claim 1 wherein the retention in the rear part of the housing is obtained by elastic deformation.
3 - bouchon selon la revendication 1 ou 2 pour lequel la partie avant (12) est cylindrique lisse.3 - cap according to claim 1 or 2 wherein the front portion (12) is cylindrical smooth.
4 - bouchon selon l'une des revendications précédentes pour lequel la partie arrière (14) est creuse.4 - cap according to one of the preceding claims wherein the rear portion (14) is hollow.
5 - bouchon selon l'une des revendications précédentes pour lequel la zone de transition (16) entre la partie avant (12) et la partie arrière (14) comporte un décrochement, le diamètre de la partie arrière (14) au niveau de la zone de transition étant supérieur au diamètre de la partie avant (12).5 - cap according to one of the preceding claims wherein the transition zone (16) between the front portion (12) and the rear portion (14) comprises a recess, the diameter of the rear portion (14) at the level of the transition zone being greater than the diameter of the front portion (12).
6 - bouchon selon l'une des revendications précédentes pour lequel la partie arrière (14) est de forme générale légèrement conique de diamètre croissant à partir de la zone de transition (16). 7 - bouchon selon l'une des revendications précédentes pour lequel au moins l'extrémité distale de la partie arrière (14) comporte des rainures (17).6 - cap according to one of the preceding claims wherein the rear portion (14) is generally slightly conical shape of increasing diameter from the transition zone (16). 7 - cap according to one of the preceding claims wherein at least the distal end of the rear portion (14) has grooves (17).
8 - bouchon selon l'une des revendications précédentes pour lequel au moins l'extrémité distale de la partie arrière (14) comporte, par rapport à une forme de révolution, des renflements (18) dirigés vers l'extérieur. 9 - boîtier (11) de connecteur électrique équipé d'un bouchon (1 , 2, 3, 4,8 - cap according to one of the preceding claims wherein at least the distal end of the rear portion (14) has, relative to a form of revolution, bulges (18) directed outwardly. 9 - housing (11) of electrical connector equipped with a plug (1, 2, 3, 4,
5, 6, 7, 8, 9) selon l'une des revendications précédentes, pour lequel la rétention dans la partie arrière du boîtier est obtenue par déformation élastique.5, 6, 7, 8, 9) according to one of the preceding claims, wherein the retention in the rear part of the housing is obtained by elastic deformation.
10 - boîtier (11) de connecteur électrique équipé d'un bouchon (1 , 2, 3, 4, 5, 6, 7, 8, 9) selon l'une des revendications précédentes pour lequel le passage arrière (15) est une ouverture d'une grille arrière (19) du boîtier. 11 - boîtier de connecteur électrique selon la revendication 9 pour lequel le passage arrière (15) et la partie arrière (14) du bouchon sont pourvus de contours de formes différentes et adaptées pour réaliser des zones de contact disjointes (20, 21 , 22) entre la surface externe du bouchon et la paroi de l'ouverture de la grille. 10 - housing (11) of electrical connector equipped with a plug (1, 2, 3, 4, 5, 6, 7, 8, 9) according to one of the preceding claims for which the rear passage (15) is a opening a rear grille (19) of the housing. 11 - electrical connector housing according to claim 9 wherein the rear passage (15) and the rear portion (14) of the plug are provided with contours of different shapes and adapted to achieve disjoint contact areas (20, 21, 22) between the outer surface of the plug and the wall of the opening of the grid.
EP06709142A 2006-01-19 2006-01-19 Connector equipped with a plug Active EP1979990B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR2006/000138 WO2007083003A1 (en) 2006-01-19 2006-01-19 Obturator for a compartment of a junction unit and junction unit equipped with such a obturator

Publications (2)

Publication Number Publication Date
EP1979990A1 true EP1979990A1 (en) 2008-10-15
EP1979990B1 EP1979990B1 (en) 2011-12-14

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EP06709142A Active EP1979990B1 (en) 2006-01-19 2006-01-19 Connector equipped with a plug

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US (1) US8241061B2 (en)
EP (1) EP1979990B1 (en)
CN (1) CN101390258B (en)
AT (1) ATE537583T1 (en)
WO (1) WO2007083003A1 (en)

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Also Published As

Publication number Publication date
CN101390258A (en) 2009-03-18
EP1979990B1 (en) 2011-12-14
WO2007083003A1 (en) 2007-07-26
CN101390258B (en) 2013-01-16
US8241061B2 (en) 2012-08-14
ATE537583T1 (en) 2011-12-15
US20090305569A1 (en) 2009-12-10

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