EP1836749A1 - Device with an element bearing a sealing connection pin - Google Patents

Device with an element bearing a sealing connection pin

Info

Publication number
EP1836749A1
EP1836749A1 EP05820740A EP05820740A EP1836749A1 EP 1836749 A1 EP1836749 A1 EP 1836749A1 EP 05820740 A EP05820740 A EP 05820740A EP 05820740 A EP05820740 A EP 05820740A EP 1836749 A1 EP1836749 A1 EP 1836749A1
Authority
EP
European Patent Office
Prior art keywords
sheath
sleeve
pin
spindle
ring
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.)
Withdrawn
Application number
EP05820740A
Other languages
German (de)
French (fr)
Inventor
Jean-Philippe Charbonnier
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.)
Valeo Systemes de Controle Moteur SAS
Original Assignee
Valeo Systemes de Controle Moteur 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 Valeo Systemes de Controle Moteur SAS filed Critical Valeo Systemes de Controle Moteur SAS
Publication of EP1836749A1 publication Critical patent/EP1836749A1/en
Withdrawn legal-status Critical Current

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
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0069—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having connector relating features for connecting the connector pins with the PCB or for mounting the connector body with the housing

Definitions

  • the invention relates to any device, such as connectors, electronic boxes, and more generally any apparatus comprising a body which carries one or more connecting pins, and whose sealing of the connection between the pin and the body is critical. .
  • gas injectors which comprise a membrane actuated by an electromagnet electrically powered via connection pins which project from the body of the injector.
  • the body of the injector is generally molded or injected and covers a portion of the spindle so as to form an interface between the body and the spindle. This interface is not completely sealed, and the pressurized gas present in the injector can leak out via this interface. It has been thought to have a seal between the body and the spindle, but this provision can be applied in practice only circular section pins.
  • the object of the invention is to improve the seal between the pins and the body which carries these pins, including in the case of non-circular section pins.
  • a device having a body which carries at least one connecting pin, wherein the pin comprises a portion covered with a sleeve having a circular cylindrical outer surface, the sleeve being fixed in a pin-tight manner and extending into a housing of the body delimited by a circular cylindrical wall, a seal sealing being disposed between the outer surface of the sleeve and the wall defining the housing.
  • the invention also relates to a method of manufacturing such a device, comprising the steps of: - threading a sheath on the spindle and stop longitudinally the sleeve relative to the spindle; and
  • FIG. 1 is a side view of a gas injector cover according to the invention partially in section along the line I-I of Figure 2 at one of the pins;
  • FIG. 2 is a front view of the lid of the injector of FIG. 1;
  • FIG. 3 is an enlarged partial view of Figure 1, at the sheath;
  • FIG. 4 is a front view of a pin and a sleeve during the securing step of the sleeve on the spindle;
  • FIG. 5 is an enlarged sectional view along the line V-V of FIG. 4.
  • the gas injector cover comprises a body 1 which comprises a lower part adapted to be mounted on the injector proper, not shown here.
  • the body 1 of the lid encloses an electromagnet (not visible) serving to actuate a movable element of the injector, for example a membrane.
  • the body 1 comprises a portion shaped as a connector 2 in which connection pins extend.
  • Each of the pins 3 has a free portion
  • the sheath 6 is threaded onto the spindle 3 and welded thereto at the connecting portion 5 by means of a solder alloy which extends so as to completely fill the space between the sheath 6 and the spindle 3 and thus seal the connection between the sheath 6 and the pin 3.
  • a solder alloy which extends so as to completely fill the space between the sheath 6 and the spindle 3 and thus seal the connection between the sheath 6 and the pin 3.
  • it has the pin 3 in a mounting (not shown) which holds the pin 3 so that the free portion 4 extends vertically.
  • the sheath 6 on the pin 3.
  • the pin 3 has an extension 8 in the form of a butt on the base of which the sleeve 6 abuts, so that the sleeve 6 is naturally stopped opposite the connecting portion 5 of the pin 3.
  • solder alloy ring 11 Thread on the pin 3 a solder alloy ring 11 so that it bears against the sleeve 6.
  • the solder alloy ring 11 is heated (for example by means of a coil fed at high frequency arranged around the free portion of the spindle) so that the solder alloy melts and infiltrates by capillarity between the pin 3 and the sleeve 6.
  • a chamfer 12 made on the sheath 6 facilitates the infiltration of the liquid solder alloy between pin 3 and sleeve 6.
  • the sheath 6 is left free radially with respect to the pin 3 during the securing step so that the sleeve 6 is positioned radially with respect to the pin by the sole effect of the surface tensions in the molten solder alloy.
  • the sleeve 6 has a rectangular inner wall 9 which is parallel to the outer surface 10 facing the pin 3.
  • the weld alloy then forms between the sheath 6 and the spindle 3 a seal of constant thickness which guarantees a centering of the sheath 6 on the spindle 3 and ensures a homogeneous conduction of heat between the spindle. 3 and the sheath 6.
  • the spindle 3 thus provided with its sleeve 6 is then placed in a mold and the body 1 is injected around the spindle 3.
  • the material used is the body has an injection temperature lower than the melting temperature of the solder alloy, in order to prevent the sheath from becoming detached from the spindle during the injection of the body 1.
  • the body is made of aluminum, we can use an alloy of tin and silver for welding the sheath on the spindle.
  • the body 1 defines a housing 20 of revolution in which the sleeve 6 extends.
  • the housing 20 has a first circular portion 21 opening on the outside, then, after a conical transition 22, a second circular portion of a smaller diameter delimited by a circular cylindrical wall 26 extending facing the outer surface 13 circular cylindrical sleeve 6.
  • the housing 20 extends beyond the end of the sleeve 6 and has a bottom of which extends a central protrusion 24 which encloses a portion of the outer surface 13 of the sleeve 6, thus making the connection between the pin 3 and the body 1 more rigid.
  • the protrusion 24 defines on the outer surface 13 of the sleeve 6 a preferably conical shoulder 25 which forms a seat for an O-ring 30 disposed between the outer surface 13 of the sleeve 6 and the wall 26 facing the housing 20.
  • the O-ring 30 thus ensures a seal between the sheath 6 and the body 1.
  • the portion of the housing 20 immediately adjacent to the shoulder 25 extending between the wall 26 and the central protrusion 24 forms a cavity 27 which is closed by the O-ring 30 and in which a certain amount of air is trapped during In practice, care will be taken to provide the cavity 27 with a volume large enough for the installation of the O-ring 30 not to cause the installation of the O-ring. in the cavity 27 that a slight increase in pressure of the air trapped in the cavity 27, so that this increase in pressure can not prevent pushing the O-ring 30 to the shoulder 25.
  • an anti-extrusion ring 31 is disposed on the side of the O-ring 30 opposite the seat 25 , the anti-extrusion ring 31 being retained by an elastic spring washer 32 (particularly visible in Figure 2) which is pressed into the first portion 21 of the housing 20 and then forced against the conical transition 22 of the housing 20 so that the base of the petals is anchored by buttresses on the outer surface 13 of the sheath 6.
  • the invention is not limited to what has just been described, but on the contrary encompasses any variant within the scope defined by the claims.
  • the invention has been illustrated in application to a pin of non-circular section, the invention also applies to a pin of circular section, the sleeve allowing the use of an O-ring of more large dimensions that a seal adapted to the diameter of the spindle, so a priori easier to put in place.
  • an external stop may be provided.
  • sheath and the spindle are soldered by the addition of solder alloy, the sheath and the spindle can be secured using other bonding products, such as liquid glue. Other methods of sealing may also be used, such as for example a weld without adding material.
  • the sheath is metallic, the sheath may be made of any other material, for example plastic.
  • the inner wall of the sheath is parallel to the outer surface of the spindle, it can be provided on the sheath an inner wall of any shape.
  • the body has been illustrated as enclosing a portion of the outer surface of the sheath, which allows a greater rigidity of the connection between the spindle and the body, the body may not enclose the sheath.
  • the seat may be provided on the body to extend on the wall 26 defining the housing. The seat can still be formed on the outer surface of the sheath.
  • the sleeve has been illustrated as extending into a housing opening from the body, the sleeve may extend into a non-opening housing. The seal should then be put in place from inside the body.

Abstract

The invention concerns a device having an element (1) bearing at least one connection pin (3), said pin comprising a portion covered with a sheath (6) including a circular cylindrical outer surface, the sheath being sealingly fixed to the pin and extending in a housing (20) of the body delimited by a circular cylindrical wall (26), a sealing joint (30) being arranged between the sheath outer surface and the housing wall. The invention also concerns a method for making such a device.

Description

DISPOSITIF AVEC UN CORPS PORTEUR D' UNE BROCHE DE CONNEXION A ΞTANCHEITE DEVICE WITH A CARRIER BODY OF A TENSION CONNECTION PIN
L'invention concerne tout dispositif, comme par exemple des connecteurs, des boîtiers électroniques, et plus généralement tout appareillage comportant un corps qui porte une ou des broches de connexion, et dont l'étanchéité de la liaison entre la broche et le corps est critique.The invention relates to any device, such as connectors, electronic boxes, and more generally any apparatus comprising a body which carries one or more connecting pins, and whose sealing of the connection between the pin and the body is critical. .
ARRIERE-PLAN DE L'INVENTION On connaît par exemple des injecteurs de gaz qui comportent une membrane actionnée par un électroaimant alimentée électriquement via des broches de connexion qui s'étendent en saillie du corps de l'injecteur.BACKGROUND OF THE INVENTION For example, there are known gas injectors which comprise a membrane actuated by an electromagnet electrically powered via connection pins which project from the body of the injector.
Le corps de l'injecteur est en général moulé ou injecté et recouvre une partie de la broche de façon à former une interface entre le corps et la broche. Cette interface n'est pas totalement ëtanche, et le gaz sous pression présent dans l'injecteur peut fuir vers l'extérieur via cette interface. On a bien pensé à disposer un joint d'étanchéité entre le corps et la broche, mais cette disposition ne peut s'appliquer en pratique qu'aux broches de section circulaire .The body of the injector is generally molded or injected and covers a portion of the spindle so as to form an interface between the body and the spindle. This interface is not completely sealed, and the pressurized gas present in the injector can leak out via this interface. It has been thought to have a seal between the body and the spindle, but this provision can be applied in practice only circular section pins.
OBJET DE L'INVENTION L'invention a pour objet d'améliorer l'étanchéité entre les broches et le corps qui porte ces broches, y compris dans le cas de broches de section non circulaire.OBJECT OF THE INVENTION The object of the invention is to improve the seal between the pins and the body which carries these pins, including in the case of non-circular section pins.
BREVE DESCRIPTION DE L'INVENTION Selon l'invention, on propose un dispositif ayant un corps qui porte au moins une broche de connexion, dans lequel la broche comporte une portion recouverte d'un fourreau ayant une surface externe cylindrique circulaire, le fourreau étant fixé de manière êtanche à la broche et s' étendant dans un logement du corps délimité par une paroi cylindrique circulaire, un joint d'étanchéité étant disposé entre la surface externe du fourreau et la paroi délimitant le logement.BRIEF DESCRIPTION OF THE INVENTION According to the invention, there is provided a device having a body which carries at least one connecting pin, wherein the pin comprises a portion covered with a sleeve having a circular cylindrical outer surface, the sleeve being fixed in a pin-tight manner and extending into a housing of the body delimited by a circular cylindrical wall, a seal sealing being disposed between the outer surface of the sleeve and the wall defining the housing.
Ainsi, en interposant une pièce supplémentaire entre la broche et le corps, on remplace une interface par deux interfaces :Thus, by interposing an additional piece between the pin and the body, an interface is replaced by two interfaces:
- une première interface entre la broche et le fourreau, rendue étanche au moyen d'une fixation étanche, par exemple de type collage ou soudage ;- A first interface between the pin and the sleeve, sealed by means of a sealed attachment, for example gluing or welding type;
- une deuxième interface entre le fourreau et le corps, rendue étanche par un joint d'étanchéité s'étendant entre deux parois cylindriques circulaires.- A second interface between the sleeve and the body, sealed by a seal extending between two circular cylindrical walls.
Ces deux interfaces sont étanchéifiées par des procédés d'étanchéification plus performants que le simple contact entre le corps et la broche résultant de l'injection du corps autour de la broche, de sorte que l'étanchéité du dispositif s'en trouve améliorée.These two interfaces are sealed by more effective sealing methods than the simple contact between the body and the pin resulting from the injection of the body around the pin, so that the sealing of the device is improved.
L' invention est également relative à un procédé de fabrication d'un tel dispositif, comportant les étapes de : - enfiler un fourreau sur la broche et arrêter Ion-' gitudinalement le fourreau par rapport à la broche; etThe invention also relates to a method of manufacturing such a device, comprising the steps of: - threading a sheath on the spindle and stop longitudinally the sleeve relative to the spindle; and
- solidariser le fourreau à la broche en provoquant une infiltration par capillarité d'un produit liquide de liaison entre la broche et le fourreau. BREVE DESCRIPTION DES DESSINS- Secure the sleeve to the pin by causing a capillary infiltration of a liquid product connecting the pin and the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
L'invention sera mieux comprise à la lumière de la description qui suit en référence aux figures des dessins annexés parmi lesquelles :The invention will be better understood in the light of the description which follows with reference to the figures of the appended drawings in which:
- la figure 1 est une vue de côté d'un couvercle d'injecteur de gaz selon l'invention avec coupe partielle selon la ligne I-I de la figure 2 au niveau de l'une des broches ;- Figure 1 is a side view of a gas injector cover according to the invention partially in section along the line I-I of Figure 2 at one of the pins;
- la figure 2 est une vue de face du couvercle de l'injecteur de la figure 1 ; - la figure 3 est une vue partielle agrandie de la figure 1, au niveau du fourreau ;FIG. 2 is a front view of the lid of the injector of FIG. 1; FIG. 3 is an enlarged partial view of Figure 1, at the sheath;
- la figure 4 est une vue de face d'une broche et d'un fourreau lors de l'étape de solidarisation du fourreau sur à la broche ; - la figure 5 est une vue agrandie en coupe selon la ligne V-V de la figure 4.- Figure 4 is a front view of a pin and a sleeve during the securing step of the sleeve on the spindle; FIG. 5 is an enlarged sectional view along the line V-V of FIG. 4.
DESCRIPTION DETAILLEE DE L'INVENTION En référence à la figure 1, le couvercle d'injecteur de gaz selon l'invention comporte un corps 1 qui comporte une partie inférieure adaptée à être montée sur l'injecteur proprement dit, non représenté ici. Le corps 1 du couvercle renferme un électroaimant (non visible) servant à actionner un élément mobile de l'injecteur, par exemple une membrane. Le corps 1 comporte une partie conformée en connecteur 2 dans lequel s'étendent des broches de connexionDETAILED DESCRIPTION OF THE INVENTION With reference to FIG. 1, the gas injector cover according to the invention comprises a body 1 which comprises a lower part adapted to be mounted on the injector proper, not shown here. The body 1 of the lid encloses an electromagnet (not visible) serving to actuate a movable element of the injector, for example a membrane. The body 1 comprises a portion shaped as a connector 2 in which connection pins extend.
3 métalliques (une seule broche est visible ici) servant à l'alimentation électrique de l' électroaimant .3 metal (only one pin is visible here) for the power supply of the electromagnet.
Chacune des broches 3 comporte une portion libreEach of the pins 3 has a free portion
4 saillant du corps 1, puis une portion de liaison 5 à un fourreau 6 métallique s'étendant dans le prolongement de la portion libre 4.4 protruding from the body 1, then a connecting portion 5 to a metal sheath 6 extending in the extension of the free portion 4.
Le fourreau 6 est enfilé sur la broche 3 et soudé à celle-ci au niveau de la portion de liaison 5 au moyen d'un alliage de soudure qui s'étend de façon à remplir totalement l'espace entre le fourreau 6 et la broche 3 et ainsi rendre étanche la liaison entre le fourreau 6 et la broche 3. Pour réaliser cette liaison, et comme cela est visible à la figure 4, on dispose la broche 3 dans un montage (non représenté) qui tient la broche 3 de sorte que la portion libre 4 s'étende verticalement. Puis on enfile le fourreau 6 sur la broche 3. Ici, la broche 3 comporte une extension 8 en forme de crosse sur la base de laquelle le fourreau 6 vient en butée, de sorte que le fourreau 6 est naturellement arrêté en regard de la portion de liaison 5 de la broche 3.The sheath 6 is threaded onto the spindle 3 and welded thereto at the connecting portion 5 by means of a solder alloy which extends so as to completely fill the space between the sheath 6 and the spindle 3 and thus seal the connection between the sheath 6 and the pin 3. To achieve this connection, and as can be seen in Figure 4, it has the pin 3 in a mounting (not shown) which holds the pin 3 so that the free portion 4 extends vertically. Then we put the sheath 6 on the pin 3. Here, the pin 3 has an extension 8 in the form of a butt on the base of which the sleeve 6 abuts, so that the sleeve 6 is naturally stopped opposite the connecting portion 5 of the pin 3.
On enfile sur la broche 3 un anneau d'alliage de soudure 11 de sorte qu' il vienne en appui contre le fourreau 6. On chauffe l'anneau d'alliage de soudure 11 (par exemple au moyen d'une bobine alimentée en haute fréquence disposée autour de la portion libre de la broche) de sorte que l'alliage de soudure fonde et s'infiltre par capillarité entre la broche 3 et le fourreau 6. A cet égard, un chanfrein 12 réalisé sur le fourreau 6 facilite l'infiltration de l'alliage de soudure liquide entre la broche 3 et le fourreau 6.Thread on the pin 3 a solder alloy ring 11 so that it bears against the sleeve 6. The solder alloy ring 11 is heated (for example by means of a coil fed at high frequency arranged around the free portion of the spindle) so that the solder alloy melts and infiltrates by capillarity between the pin 3 and the sleeve 6. In this respect, a chamfer 12 made on the sheath 6 facilitates the infiltration of the liquid solder alloy between pin 3 and sleeve 6.
La solidification de l'alliage de soudure rend étanche la liaison entre la broche 3 et le fourreau 6.The solidification of the solder alloy seals the connection between the pin 3 and the sheath 6.
Selon un aspect particulier de l'invention, le fourreau 6 est laissé libre radialement par rapport à la broche 3 pendant l'étape de solidarisation de sorte que le fourreau 6 se positionne radialement par rapport à la broche par le seul effet des tensions superficielles dans l'alliage de soudure fondu.According to a particular aspect of the invention, the sheath 6 is left free radially with respect to the pin 3 during the securing step so that the sleeve 6 is positioned radially with respect to the pin by the sole effect of the surface tensions in the molten solder alloy.
A cet égard, et comme cela est particulièrement visible à la figure 5, pour une broche de section rectangulaire, le fourreau 6 comporte une paroi interne 9 rec- tangulaire qui est parallèle à la surface externe 10 en regard de la broche 3. Sous l'effet des tensions superficielles, l'alliage de soudure forme alors entre le fourreau 6 et la broche 3 un joint d'épaisseur constante qui garantit un centrage du fourreau 6 sur la broche 3 et as- sure une conduction homogène de chaleur entre la broche 3 et le fourreau 6.In this respect, and as is particularly visible in FIG. 5, for a pin of rectangular cross-section, the sleeve 6 has a rectangular inner wall 9 which is parallel to the outer surface 10 facing the pin 3. Under FIG. As a result of the effect of the surface tensions, the weld alloy then forms between the sheath 6 and the spindle 3 a seal of constant thickness which guarantees a centering of the sheath 6 on the spindle 3 and ensures a homogeneous conduction of heat between the spindle. 3 and the sheath 6.
La broche 3 ainsi munie de son fourreau 6 est alors placée dans un moule et le corps 1 est injecté autour de la broche 3. A ce propos, on veillera à ce que la matière uti- lisée pour le corps ait une température d'injection inférieure à la température de fusion de l'alliage de soudure, afin d'éviter que le fourreau se désolidarise de la broche pendant l'injection du corps 1. A titre d'exemple, si le corps est réalisé en aluminium, on pourra utiliser un alliage d'étain et d'argent pour la soudure du fourreau sur la broche.The spindle 3 thus provided with its sleeve 6 is then placed in a mold and the body 1 is injected around the spindle 3. In this respect, it will be ensured that the material used is the body has an injection temperature lower than the melting temperature of the solder alloy, in order to prevent the sheath from becoming detached from the spindle during the injection of the body 1. For example, if the body is made of aluminum, we can use an alloy of tin and silver for welding the sheath on the spindle.
Comme cela est particulièrement visible à la figure 3, le corps 1 définit un logement 20 de révolution dans lequel le fourreau 6 s'étend. Le logement 20 comporte une première partie circulaire 21 débouchant sur l'extérieur, puis, après une transition conique 22, une deuxième partie circulaire d'un diamètre moins important délimité par une paroi 26 cylindrique circulaire s'étendant en regard de la surface externe 13 cylindrique circulaire du fourreau 6.As is particularly visible in Figure 3, the body 1 defines a housing 20 of revolution in which the sleeve 6 extends. The housing 20 has a first circular portion 21 opening on the outside, then, after a conical transition 22, a second circular portion of a smaller diameter delimited by a circular cylindrical wall 26 extending facing the outer surface 13 circular cylindrical sleeve 6.
Le logement 20 se prolonge au delà de l'extrémité du fourreau 6 et comporte un fond duquel s'étend une excroissance centrale 24 qui enserre une partie de la sur- face externe 13 du fourreau 6, rendant ainsi la liaison entre la broche 3 et le corps 1 plus rigide.The housing 20 extends beyond the end of the sleeve 6 and has a bottom of which extends a central protrusion 24 which encloses a portion of the outer surface 13 of the sleeve 6, thus making the connection between the pin 3 and the body 1 more rigid.
L'excroissance 24 définit sur la surface externe 13 du fourreau 6 un épaulement 25 de préférence conique qui forme un siège pour un joint torique 30 disposé entre la surface externe 13 du fourreau 6 et la paroi 26 en regard du logement 20. Le joint torique 30 assure ainsi une étanchéité entre le fourreau 6 et le corps 1.The protrusion 24 defines on the outer surface 13 of the sleeve 6 a preferably conical shoulder 25 which forms a seat for an O-ring 30 disposed between the outer surface 13 of the sleeve 6 and the wall 26 facing the housing 20. The O-ring 30 thus ensures a seal between the sheath 6 and the body 1.
La partie du logement 20 immédiatement adjacente à l'épaulement 25 qui s'étend entre la paroi 26 et l'excroissance centrale 24 forme une cavité 27 qui est fermée par le joint torique 30 et dans laquelle une certaine quantité d'air est emprisonnée lors de la mise en place du joint torique 30. En pratique, on veillera à donner à la cavité 27 un volume suffisamment important pour que la mise en place du joint torique 30 ne provoque dans la cavité 27 qu'une faible augmentation de pression de l'air emprisonné dans la cavité 27, de sorte que cette augmentation de pression ne puisse empêcher de pousser le joint torique 30 jusqu'à l'épaulement 25. Pour empêcher l'expulsion du joint torique 30 sous l'effet de la pression du gaz s' infiltrant le long de la surface externe de la broche 3 jusque dans la cavité 27, une bague anti-extrusion 31 est disposée du côté du joint torique 30 opposé au siège 25, la bague anti- extrusion 31 étant retenue par une rondelle élastique à pétales 32 (particulièrement visible à la figure 2) qui est enfoncée dans la première partie 21 du logement 20 puis forcée contre la transition conique 22 du logement 20 afin que la base des pétales s'ancre par arc-boutement sur la surface externe 13 du fourreau 6.The portion of the housing 20 immediately adjacent to the shoulder 25 extending between the wall 26 and the central protrusion 24 forms a cavity 27 which is closed by the O-ring 30 and in which a certain amount of air is trapped during In practice, care will be taken to provide the cavity 27 with a volume large enough for the installation of the O-ring 30 not to cause the installation of the O-ring. in the cavity 27 that a slight increase in pressure of the air trapped in the cavity 27, so that this increase in pressure can not prevent pushing the O-ring 30 to the shoulder 25. To prevent the expulsion the O-ring 30 under the effect of the pressure of the gas infiltrating along the outer surface of the pin 3 into the cavity 27, an anti-extrusion ring 31 is disposed on the side of the O-ring 30 opposite the seat 25 , the anti-extrusion ring 31 being retained by an elastic spring washer 32 (particularly visible in Figure 2) which is pressed into the first portion 21 of the housing 20 and then forced against the conical transition 22 of the housing 20 so that the base of the petals is anchored by buttresses on the outer surface 13 of the sheath 6.
L'invention n'est pas limitée à ce qui vient d'être décrit, mais bien au contraire englobe toute variante entrant dans le cadre défini par les revendications . En particulier, bien que l'on ait illustré l'invention en application à une broche de section non circulaire, l'invention s'applique également à une broche de section circulaire, le fourreau permettant l'utilisation d'un joint torique de plus grandes dimen- sions qu'un joint adapté au diamètre de la broche, donc a priori plus facile à mettre en place .The invention is not limited to what has just been described, but on the contrary encompasses any variant within the scope defined by the claims. In particular, although the invention has been illustrated in application to a pin of non-circular section, the invention also applies to a pin of circular section, the sleeve allowing the use of an O-ring of more large dimensions that a seal adapted to the diameter of the spindle, so a priori easier to put in place.
Bien que l'on ait illustré le fourreau lors de son assemblage à la broche comme étant arrêté en regard de la portion de liaison de la broche par une forme par- ticulière de la broche, on pourra prévoir un arrêt extérieur.Although the sheath has been illustrated during its assembly at the spindle as being stopped opposite the connecting portion of the spindle by a particular form of the spindle, an external stop may be provided.
Bien que l'on ait indiqué que le fourreau et la broche sont soudés par apport d'alliage de soudure, on pourra solidariser le fourreau et la broche à l'aide d'autres produits de liaison, comme de la colle liquide. On pourra également utiliser d'autres modes de fixation étanche, comme par exemple une soudure sans apport de matière.Although it has been indicated that the sheath and the spindle are soldered by the addition of solder alloy, the sheath and the spindle can be secured using other bonding products, such as liquid glue. Other methods of sealing may also be used, such as for example a weld without adding material.
Bien que l'on ait indiqué que le fourreau est mé- tallique, le fourreau pourra être réalisé dans tout autre matière, par exemple en matière plastique.Although it has been indicated that the sheath is metallic, the sheath may be made of any other material, for example plastic.
Bien que l'on ait indiqué que la paroi interne du fourreau est parallèle à la surface externe de la broche, on pourra prévoir sur le fourreau une paroi interne de forme quelconque.Although it has been indicated that the inner wall of the sheath is parallel to the outer surface of the spindle, it can be provided on the sheath an inner wall of any shape.
Bien que l'on ait illustré le corps comme enserrant une partie de la surface externe du fourreau, ce qui permet une plus grande rigidité de la liaison entre la broche et le corps, le corps pourra ne pas enserrer le fourreau. Dans ce cas, le siège pourra être ménagé sur le corps pour s'étendre sur la paroi 26 délimitant le logement. Le siège pourra encore être formé sur la surface externe du fourreau.Although the body has been illustrated as enclosing a portion of the outer surface of the sheath, which allows a greater rigidity of the connection between the spindle and the body, the body may not enclose the sheath. In this case, the seat may be provided on the body to extend on the wall 26 defining the housing. The seat can still be formed on the outer surface of the sheath.
Bien que l'on ait illustré le fourreau comme s'étendant dans un logement débouchant du corps, le fourreau pourra s'étendre dans un logement non débouchant. Le joint d'étanchéité devra alors être mis en place depuis l'intérieur du corps. Although the sleeve has been illustrated as extending into a housing opening from the body, the sleeve may extend into a non-opening housing. The seal should then be put in place from inside the body.

Claims

REVENDICATIONS
1. Dispositif ayant un corps (1) qui porte au moins une broche (3) de connexion, caractérisé en ce que la broche comporte une portion (5) recouverte d'un fourreau (6) ayant une surface externe (13) cylindrique circulaire, le fourreau étant fixé de manière étanche à la broche et s'étendant dans un logement (20) du corps délimité par une paroi (26) cylindrique circulaire, un joint d'étanchéité (30) étant disposé entre la surface externe (13) du fourreau et la paroi (26) délimitant le logement.1. Device having a body (1) which carries at least one pin (3) connection, characterized in that the pin comprises a portion (5) covered with a sleeve (6) having a circular outer surface (13) cylindrical , the sheath being sealed to the spindle and extending into a housing (20) of the body delimited by a circular cylindrical wall (26), a seal (30) being disposed between the outer surface (13) the sleeve and the wall (26) defining the housing.
2. Dispositif selon la revendication 1, caractérisé en ce que le corps s'étend pour recouvrir partiellement la surface externe (13) du fourreau (6) et former un épaulement (25) sur cette surface externe.2. Device according to claim 1, characterized in that the body extends to partially cover the outer surface (13) of the sleeve (6) and form a shoulder (25) on this outer surface.
3. Dispositif selon la revendication 2, caractérisé en ce que le corps (1) définit une cavité (27) adjacente à l' épaulement (25) fermée par le joint d'étanchéité (30) . 3. Device according to claim 2, characterized in that the body (1) defines a cavity (27) adjacent to the shoulder (25) closed by the seal (30).
4. Dispositif selon la revendication 1, caractérisé en ce qu'une bague (31) est disposée contre un flanc du joint d'étanchéité (30) , la bague étant arrêtée par un organe de retenue (32) ancré sur le fourreau (6) .4. Device according to claim 1, characterized in that a ring (31) is disposed against a side of the seal (30), the ring being stopped by a retaining member (32) anchored on the sleeve (6). ).
5. Procédé de fabrication d'un dispositif ayant un corps (1) qui porte au moins une broche (3) de connexion, caractérisé en ce qu'il comporte les étapes de :5. A method of manufacturing a device having a body (1) which carries at least one pin (3) connection, characterized in that it comprises the steps of:
- enfiler un fourreau (6) sur la broche et arrêter longitudinalement le fourreau par rapport à la broche; et - solidariser le fourreau à la broche en provoquant une infiltration par capillarité d'un produit liquide de liaison entre la broche et le fourreau.- Put a sheath (6) on the spindle and stop longitudinally the sleeve relative to the spindle; and - secure the sheath to the spindle by causing capillary infiltration of a liquid product connecting the spindle and the sheath.
6. Procédé selon la revendication 5, caractérisé en ce que l'étape de solidarisation du fourreau à la bro- che comporte les opérations de : - enfiler un anneau d'alliage de soudure (11) solide sur la broche de sorte que l'anneau vienne en appui sur le fourreau, et faire fondre l'anneau d'alliage de soudure de sorte que l'alliage de soudure s'infiltre entre le fourreau et la broche.6. Method according to claim 5, characterized in that the step of securing the sheath to the broach comprises the operations of: - Put a ring of solder alloy (11) solid on the pin so that the ring bears on the sleeve, and melt the solder alloy ring so that the solder alloy s' infiltrates between the sheath and the spit.
7. Procédé selon la revendication 5, caractérisé en ce que le fourreau (6) comporte une paroi interne (9) parallèle à une surface externe (10) en regard de la bro- che (3) , le fourreau étant laissé libre radialement par rapport à la broche lors de l'étape de solidarisation.7. Method according to claim 5, characterized in that the sleeve (6) has an inner wall (9) parallel to an outer surface (10) facing the pin (3), the sleeve being left free radially by report to the spindle during the step of joining.
8. Procédé selon la revendication 5, caractérisé en ce que la broche ainsi munie de son fourreau est ensuite intégrée dans le corps (1) du dispositif. 8. Method according to claim 5, characterized in that the pin thus provided with its sheath is then integrated into the body (1) of the device.
9. Procédé selon la revendication 8, caractérisé en ce que l'on injecte le corps (1) du dispositif autour de la broche (3) munie de son fourreau (6) , le corps étant injecté en une matière ayant une température d'injection inférieure à une température de fusion du produit de liaison.9. Method according to claim 8, characterized in that the body (1) of the device is injected around the pin (3) provided with its sheath (6), the body being injected in a material having a temperature of injection lower than a melting temperature of the binding product.
10. Procédé selon la revendication 8, caractérisé en ce qu'on dispose un joint d'étanchéité (30) entre une surface externe (13) du fourreau et une paroi (26) en regard d'un logement du corps (1) dans lequel s'étend le fourreau. 10. A method according to claim 8, characterized in that there is a seal (30) between an outer surface (13) of the sleeve and a wall (26) facing a housing of the body (1) in which extends the sheath.
EP05820740A 2004-11-30 2005-11-23 Device with an element bearing a sealing connection pin Withdrawn EP1836749A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0412664A FR2878656B1 (en) 2004-11-30 2004-11-30 DEVICE WITH A BEARING BODY OF AN IMPROVED SEAL CONNECTION PIN BETWEEN THE PIN AND BODY
PCT/FR2005/002908 WO2006058982A1 (en) 2004-11-30 2005-11-23 Device with an element bearing a sealing connection pin

Publications (1)

Publication Number Publication Date
EP1836749A1 true EP1836749A1 (en) 2007-09-26

Family

ID=34952544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05820740A Withdrawn EP1836749A1 (en) 2004-11-30 2005-11-23 Device with an element bearing a sealing connection pin

Country Status (6)

Country Link
EP (1) EP1836749A1 (en)
CN (1) CN101065887B (en)
BR (1) BRPI0516652A (en)
FR (1) FR2878656B1 (en)
RU (1) RU2413346C2 (en)
WO (1) WO2006058982A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010033908A1 (en) * 2010-06-16 2011-12-22 Continental Automotive Gmbh Electric device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB769452A (en) * 1954-08-19 1957-03-06 Sangamo Weston Improvements in the production of hermetically sealed joints in electrical plugs and the like devices
DE4135679C2 (en) * 1991-10-30 2001-10-11 Bosch Gmbh Robert Plug for electrical connections
CN2658967Y (en) * 2003-09-11 2004-11-24 四川华丰企业集团有限公司 Circular electric connector having sealing locking structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006058982A1 *

Also Published As

Publication number Publication date
RU2413346C2 (en) 2011-02-27
CN101065887B (en) 2013-06-12
FR2878656B1 (en) 2009-04-17
CN101065887A (en) 2007-10-31
BRPI0516652A (en) 2008-09-16
RU2007124589A (en) 2009-01-10
FR2878656A1 (en) 2006-06-02
WO2006058982A1 (en) 2006-06-08

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