EP0028187A1 - Pluggable-board support with electrical and thermal connection - Google Patents

Pluggable-board support with electrical and thermal connection Download PDF

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Publication number
EP0028187A1
EP0028187A1 EP80401490A EP80401490A EP0028187A1 EP 0028187 A1 EP0028187 A1 EP 0028187A1 EP 80401490 A EP80401490 A EP 80401490A EP 80401490 A EP80401490 A EP 80401490A EP 0028187 A1 EP0028187 A1 EP 0028187A1
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EP
European Patent Office
Prior art keywords
support
card
thermal
plug
electrical
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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
EP80401490A
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German (de)
French (fr)
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EP0028187B1 (en
Inventor
Bruno Seytre
Henri Bricaud
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Socapex SA
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Socapex SA
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Publication of EP0028187A1 publication Critical patent/EP0028187A1/en
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Publication of EP0028187B1 publication Critical patent/EP0028187B1/en
Expired legal-status Critical Current

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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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors

Definitions

  • the present invention relates to the field of connectors for circuits on plug-in cards.
  • Such cards are presented in the form of a quadrilateral plate, made of an electrically insulating material, supporting a plurality of electronic components and the connections which connect them, these being most often produced by depositing on the plate of an electrically conductive metal.
  • connection with the external use circuits is ensured by a plurality of contacts arranged on one or more sides of the wafer, cooperating with contacts of complementary shape forming part of a fixed connector connected to the use circuits; this connector generally provides a second function, that of mechanical support of the card in the equipment where it is implemented.
  • the connectors thus take the general structure of elongated blocks in the form of bars, arranged at right angles on a common flat base.
  • connection bars are four in number, defining a closed quadrilateral
  • the installation for connection and fixing of a plug-in card requires the realization of the connection bars in two parts, capable of 'a relative movement. one with respect to the other, leading to an implementation in two phases: phase of introduction of the card, corresponding to an open position of the mobile part, phase of connection and fixing of the card, corresponding to the closed position of this part.
  • coolers are used, fixed in the central region of the card, and constituted by a block of thermally good conductive material, provided with fins increasing its surface, the evacuation of heat s 'performing by air convection.
  • connection support strip of a third function that of thermal evacuation, comes up against, in known embodiments, difficulties in obtaining electrical and thermal connections simultaneously.
  • the technical requirements to be satisfied for the two connections are indeed different, and the juxtaposition, along the same strip, of regions alternately devolved to the two functions exhibits a certain incompatibility as a result of the different contact surfaces and support pressures to be used.
  • the invention calls for a longitudinal separation of each bar into two parts, each part having respectively a face opposite with one of the two faces of the plug-in card, respectively an electrical contact face and a thermal contact face; and the invention is characterized in that the contact pressure necessary to firmly apply the card to the thermal contact face is created by the elasticity of the contacts present on the electrical contact face of the strip.
  • the invention consists of a support for a plug-in card with electrical and thermal connections, comprising a common flat base carrying several connectors in the form of a strip, arranged perpendicularly to each other, each strip having a groove for receiving an edge of the card, characterized in that the two internal faces of each groove, arranged opposite, carry respectively electrical and thermal contact elements, the bearing force between the card and the thermal contacts being provided by the support between the card and the elastic contacts with elasticity.
  • Figure 1 shows an electrical connection support for circuit on card of known type.
  • the support comprises a base 1, on which are fixed connectors in the form of a bar such as 2.
  • Each bar comprises a groove with two opposite faces, 3 and 4, intended to receive an edge 5 of a circuit on a card 6.
  • One of the faces 3 of the groove is intended to ensure the electrical connection with the electrical circuit 7 carried by the card 6, and carries contact elements such as 8, endowed with elasticity by their material and their shape.
  • the second face 4 of the groove carried by the bar 2 is mobile, and can pivot around the point 9.
  • the open position it is easy to introduce the card, the position of which is defined by the stops 10 and 11, and the closed position, as shown in the figure, applies the card to the stop 11, and simultaneously compresses the contact 8 which bends by elasticity and makes the connection electric with the necessary downforce.
  • the introduction of the card can be effected by a sliding parallel to the grooves, or a translation perpendicular to the latter.
  • the electrical connection support of FIG. 1 has no means of evacuating the thermal energy released by the circuit on the card, and it is necessary to provide the latter with separate means, a finned cooler 12, operating in the ambient air by convection.
  • Figure 2 shows, seen in section, an embodiment of the support for electrical and thermal connections according to the invention, with convection cooling.
  • connection strip is shown by way of simplification, the rest of the support being similar to that which is represented in FIG. 1.
  • the bar comprises a block 2 carrying a longitudinal groove, which seen in section, takes the shape of a horseshoe, with two branches facing each other, corresponding to the two faces 3 and 4, respectively assigned to the electrical connection and thermal with the card 6.
  • the electrical face of the strip carries contacts such as 8, with a part 20 ensuring the possibility of an elastic deformation of the contact.
  • a connection "tab” 21 allows connection with external circuits.
  • the thermal face 4 of the strip carries thermal contacts such as 22, made of material which is a good conductor of heat, and conveying the thermal energy to be eliminated thanks to a suitable surface section, by a transmission tab such as 23, in relationship with a cooler 24 provided with fins 25, and operating by air convection.
  • Such a connector works in the following way: the two faces 3 and 4 of the bar 2 are movable relative to one another, by rotation about the axis 9. In the phase of placing the card , the connector is open, the face 4 forms an angle which releases the face 3, and the introduction of the card 6 is carried out, positioned transversely by the stop 26.
  • the electrical contact occupies position 27, shown in dashes.
  • the card consists of two superimposed layers, an electrically insulating layer or substrate 6, carrying the electrical circuit 7 and its connection regions, and a layer 28 made of material with good thermal conduction, such as a metal for example, a layer often designated. under the term of thermal drain.
  • the connector closes, as shown in the figure, and the thermal contact 22 is applied to the surface of the drain.
  • the electrical contact 8 is pushed back and takes, by elasticity, the shape shown in solid lines in the figure.
  • a second stop 11 parallel to the direction in which the card is put in place, fixes the amplitude of the latter to prevent the elastic limit from being crossed by excessive compression of the contact.
  • Figure 3 shows one. another embodiment of the support of the invention, with conduction cooling.
  • the pivoting bar of FIG. 2 is then adapted, as shown in FIG. 3, to this different mode by replacing, for the positioning of the card, the pivoting movement of the thermal face by a translational movement perpendicular to the map map.
  • the external part 30 of the cooler no longer has fins, and it only assumes the function of thermal conduction, in the direction of the arrows such as 31, towards the base 1, comprising an insulating layer 33 and a basic heat sink 34, made of thermally good conductive material.
  • a fixing means such as screws 35 ensures satisfactory obtaining of the two desired types of contact.
  • the connector of the invention ensures satisfactory results as described above, it may be advantageous to improve the thermal transmission at the points of contact of departure and arrival of the thermal conductor by interposing a product there. fluid, pasty or plastic, based on silicones for example, in 36 and 37, which dispenses with too precise surface machining between the corresponding contact regions.

Abstract

L'invention se rapporte au domaine des cartes du type à circuits imprimés où est nécessaire une évacuation d'énergie thermique. Elle prévoit un support muni de connecteurs disposés perpendiculairement entre eux, chaque connecteur (2) présentant une rainure pour recevoir un bord de carte (6), les parois (3) et (4) de la rainure étant munies de contacts électriques (8) et thermiques (22), la force d'appui nécessaire à la transmission thermique étant obtenue par déformation élastique des contacts électriques (8). Les applications sont notamment du domaine des circuits montés sur embase en «fond de panier».The invention relates to the field of cards of the printed circuit type where it is necessary to evacuate thermal energy. It provides a support provided with connectors arranged perpendicularly to each other, each connector (2) having a groove for receiving a card edge (6), the walls (3) and (4) of the groove being provided with electrical contacts (8). and thermal (22), the supporting force necessary for thermal transmission being obtained by elastic deformation of the electrical contacts (8). The applications are in particular in the field of circuits mounted on a base in the “backplane”.

Description

La présente invention se rapporte au domaine des connecteurs pour circuits sur cartes enfichables.The present invention relates to the field of connectors for circuits on plug-in cards.

De telles cartes se présentent sous l'aspect d'une plaquette en forme de quadrilatère, faite d'un matériau électriquement isolant, supportant une pluralité de composants électroniques et les connexions qui les relient, celles-ci étant le plus souvent réalisées par dépôt sur la plaquette d'un métal électriquement bon conducteur.Such cards are presented in the form of a quadrilateral plate, made of an electrically insulating material, supporting a plurality of electronic components and the connections which connect them, these being most often produced by depositing on the plate of an electrically conductive metal.

Le raccordement avec les circuits d'utilisation extérieurs est assuré par une pluralité de contacts disposés sur un ou plusieurs côtés de la plaquette, coopérant avec des contacts de forme complémentaire faisant partie d'un connecteur fixe relié aux circuits d'utili sation ; ce connecteur assure en général une deuxième fonction, celle de support mécanique de la carte dans l'équipement où elle est mise en oeuvre.The connection with the external use circuits is ensured by a plurality of contacts arranged on one or more sides of the wafer, cooperating with contacts of complementary shape forming part of a fixed connector connected to the use circuits; this connector generally provides a second function, that of mechanical support of the card in the equipment where it is implemented.

Par suite de la forme en quadrilatère de la plaquette,, les connecteurs prennent ainsi la structure générale de blocs allongés en forme de barrettes, disposés à angle droit sur un socle plan commun.Due to the quadrilateral shape of the wafer, the connectors thus take the general structure of elongated blocks in the form of bars, arranged at right angles on a common flat base.

Suivant un mode de réalisation souvent rencontré, en particulier quand les barrettes sont au nombre de quatre, définissant un quadrilatère fermé, la mise en place pour raccordement et fixation d'une carte enfichable nécessite la réalisation des barrettes de connexion en deux parties, capables d'un mouvement relatif. l'une par rapport à l'autre, conduisant à une mise en oeuvre en deux phases : phase d'introduction de la carte, correspondant à une position ouverte de la partie mobile, phase de raccordement et fixation de la carte, correspondant à la position fermée de cette partie.According to an embodiment often encountered, in particular when the bars are four in number, defining a closed quadrilateral, the installation for connection and fixing of a plug-in card requires the realization of the connection bars in two parts, capable of 'a relative movement. one with respect to the other, leading to an implementation in two phases: phase of introduction of the card, corresponding to an open position of the mobile part, phase of connection and fixing of the card, corresponding to the closed position of this part.

Ces dispositions apportent de plus, dans certains cas, la possibilité de mettre en place une carte par simple translation parallèlement à une barrette de connexion, la position ouverte mettant en retrait les contacts électriques, et assurant une insertion de la carte à frottement nul.These provisions also provide, in certain cases, the possibility of installing a card by simple translation parallel to a connection strip, the open position withdrawing the electrical contacts, and ensuring insertion of the card with zero friction.

Cependant, dans un nombre croissant d'utilisations rencontrées en pratique, de tels circuits enfichables mettent en oeuvre des puissances électriques de plus en plus grandes, et le problème de la dissipation thermique de l'énergie calorifique dégagée par effet Joule se pose.However, in an increasing number of uses encountered in practice, such plug-in circuits use increasingly large electrical powers, and the problem of heat dissipation of the heat energy released by the Joule effect arises.

Suivant un type de solution connu, il est fait appel à des refroidisseurs, fixés dans la région centrale de la carte, et constitués par un bloc de matériau thermiquement bon conducteur, muni d'ailettes augmentant sa surface, l'évacuation de la chaleur s'effectuant par convection dans l'air.According to a known type of solution, coolers are used, fixed in the central region of the card, and constituted by a block of thermally good conductive material, provided with fins increasing its surface, the evacuation of heat s 'performing by air convection.

. Une telle solution est toutefois limitée dans ses possibilités d'évacuation thermique, par suite de la surface inévitablement réduite disponible pour le refroidisseur ; de plus, son poids admissible est également réduit, nécessité par les exigences, en service, de résistance élevée aux chocs et aux vibrations de la carte ainsi équipée. Enfin, la fixation du refroidisseur sur la plaquette-substrat pose un problème difficile à résoudre, par suite des différences de dilatation thermique entre ces deux éléments, respectivement constitués par exemple d'un alliage d'aluminium et d'alumine, qui ont des coefficients de dilatation très différents ; les procédés, souvent adoptés,de collage souple par joint de silicone n'ont qu'une résistance médiocre et de plus temporaire.. Such a solution is however limited in its possibilities of thermal evacuation, owing to the inevitably reduced surface available for the cooler; in addition, its admissible weight is also reduced, necessary by the requirements, in service, of high resistance to shocks and vibrations of the card thus equipped. Finally, the fixing of the cooler to the wafer-substrate poses a problem difficult to solve, due to the differences in thermal expansion between these two elements, respectively made up for example of an aluminum and alumina alloy, which have coefficients very different dilations; the processes, often adopted, of flexible bonding by silicone seal have only a mediocre resistance and moreover temporary.

Un autre type de solution a été proposé faisant appel aux barrettes de support elles-mêmes, dont certaines régions, intercalées entre les régions de contact électrique, sont alors munies d'éléments dont certaines surfaces sont disposées en contact thermique avec les bords de la carte à refroidir.Another type of solution has been proposed using the support bars themselves, some regions of which, interposed between the electrical contact regions, are then provided with elements, certain surfaces of which are arranged in thermal contact with the edges of the card. to cool.

Cependant, l'attribution à la barrette support de raccordement d'une troisième fonction, celle d'évacuation thermique, se heurte, dans les modes de réalisation connus, à des difficultés dans l'obtention simultanée des raccordements électrique et thermique. Les exigences techniques à satisfaire pour les deux raccordements sont en effet différentes, et la juxtaposition, le long d'une même barrette, de régions alternativement dévolues aux deux fonctions présente une certaine incompatibilité par suite des surfaces de contact et des pressions d'appui différentes à mettre en oeuvre.However, the attribution to the connection support strip of a third function, that of thermal evacuation, comes up against, in known embodiments, difficulties in obtaining electrical and thermal connections simultaneously. The technical requirements to be satisfied for the two connections are indeed different, and the juxtaposition, along the same strip, of regions alternately devolved to the two functions exhibits a certain incompatibility as a result of the different contact surfaces and support pressures to be used.

C'est l'objet de la présente invention que de proposer un support pour carte enfichable qui, bien qu'assurant simultanément les deux fonctions de raccordement électrique et thermique, ne comporte pas les inconvénients attachés à cette solution.It is the object of the present invention to provide a support for a plug-in card which, although simultaneously providing the two functions of electrical and thermal connection, does not have the drawbacks attached to this solution.

Dans son fondement, l'invention fait appel à une séparation longitudinale de chaque barrette en deux parties, chaque partie ayant respectivement une face en vis-à-vis avec une des deux faces de la carte enfichable, respectivement une face de contact électrique et une face de contact thermique ; et l'invention se caractérise par le fait que la pression d'appui nécessaire pour appliquer fermement la carte sur la face de contact thermique est créée par l'élasticité des contacts présents sur la face de contact électrique de la barrette.In its foundation, the invention calls for a longitudinal separation of each bar into two parts, each part having respectively a face opposite with one of the two faces of the plug-in card, respectively an electrical contact face and a thermal contact face; and the invention is characterized in that the contact pressure necessary to firmly apply the card to the thermal contact face is created by the elasticity of the contacts present on the electrical contact face of the strip.

Plus précisément, l'invention consiste en un support pour carte enfichable à raccordements électrique et thermique, comportant un socle plan commun portant plusieurs connecteurs en forme de barrette, disposés perpendiculairement entre eux, chaque barrette présentant une rainure pour la réception d'un bord de la carte, caractérisé en ce que les deux faces internes de chaque rainure, disposées en vis-à-vis, portent respectivement des éléments de contact électrique et thermique, la force d'appui entre la carte et les contacts thermiques étant assurée par l'appui entre la carte et les contacts électriques dotés d'élasticité.More specifically, the invention consists of a support for a plug-in card with electrical and thermal connections, comprising a common flat base carrying several connectors in the form of a strip, arranged perpendicularly to each other, each strip having a groove for receiving an edge of the card, characterized in that the two internal faces of each groove, arranged opposite, carry respectively electrical and thermal contact elements, the bearing force between the card and the thermal contacts being provided by the support between the card and the elastic contacts with elasticity.

L'invention sera mieux comprise à l'aide de la description ci-après, en s'appuyant sur les figures annexées, où

  • - la figure 1 représente un support à connexion électrique pour circuit sur carte de type connu ;
  • - la figure 2 représente un mode de réalisation du support à connexion électrique et thermique selon l'invention, à refroidissement par convection ;
  • la figure 3 représente un autre mode de réalisation du support de l'invention à refroidissement par conduction.
The invention will be better understood with the aid of the description below, based on the appended figures, where
  • - Figure 1 shows an electrical connection support for circuit on card of known type;
  • - Figure 2 shows an embodiment of the support with electrical and thermal connection according to the invention, with convection cooling;
  • FIG. 3 represents another embodiment of the support of the invention with conduction cooling.

La figure 1 représente un support à connexion électrique pour circuit sur carte de type connu.Figure 1 shows an electrical connection support for circuit on card of known type.

Le support comporte une base 1, sur laquelle sont fixés des connecteurs en forme de barrette tels que 2. Chaque barrette comprend une rainure avec deux faces en vis-à-vis, 3 et 4, destinée à recevoir un bord 5 d'un circuit sur carte 6. Une des faces 3 de la rainure est destinée à assurer le raccordement électrique avec le circuit électrique 7 porté par la carte 6, et porte des éléments de contact tels que 8, dotés d'élasticité par leur matériau et leur forme.The support comprises a base 1, on which are fixed connectors in the form of a bar such as 2. Each bar comprises a groove with two opposite faces, 3 and 4, intended to receive an edge 5 of a circuit on a card 6. One of the faces 3 of the groove is intended to ensure the electrical connection with the electrical circuit 7 carried by the card 6, and carries contact elements such as 8, endowed with elasticity by their material and their shape.

Pour réaliser la mise en place d'une carte dans le support, la seconde face 4 de la rainure portée par la barrette 2 est mobile, et peut pivoter autour du point 9. En position d'ouverture, il est aisé d'introduire la carte, dont la position est définie par les butées 10 et lI, et la position de fermeture, telle que représentée sur la figure, applique la carte sur la butée 11, et simultanément comprime le contact 8 qui se courbe par élasticité et réalise le raccordement électrique avec la force d'appui nécessaire.To carry out the positioning of a card in the support, the second face 4 of the groove carried by the bar 2 is mobile, and can pivot around the point 9. In the open position, it is easy to introduce the card, the position of which is defined by the stops 10 and 11, and the closed position, as shown in the figure, applies the card to the stop 11, and simultaneously compresses the contact 8 which bends by elasticity and makes the connection electric with the necessary downforce.

Suivant que les barrettes occupent trois ou quatre côtés du quadrilatère, l'introduction de la carte peut s'effectuer par un glissement parallèle aux rainures, ou une translation perpendiculairement à celles-ci.Depending on whether the bars occupy three or four sides of the quadrilateral, the introduction of the card can be effected by a sliding parallel to the grooves, or a translation perpendicular to the latter.

Le support à connexion électrique de la figure 1 ne présente aucun moyen d'évacuation de l'énergie thermique dégagée par le circuit sur carte, et il est nécessaire de munir celui-ci de moyens séparés, un refroidisseur à ailettes 12, fonctionnant dans l'air ambiant par convection.The electrical connection support of FIG. 1 has no means of evacuating the thermal energy released by the circuit on the card, and it is necessary to provide the latter with separate means, a finned cooler 12, operating in the ambient air by convection.

Cette disposition n'apporte qu'une solution limitée à ce problème, par suite des impératifs de réduction de la taille et du poids du refroidisseur 12, même en munissant la carte 6 d'une plaque de conduction élevée, en métal bon conducteur, telle que 13. Il est, de plus, impossible de mettre en oeuvre, avec ce type de circuit à refroidisseur intégré, des circuits du type double face. Enfin, comme on l'a déjà indiqué plus haut, la fixation du refroidisseur sur la carte est difficile à réaliser et peu fiable dans le temps.This provision provides only a limited solution to this problem, due to the imperatives of reducing the size and weight of the cooler 12, even by providing the card 6 with a high conduction plate, made of a good conductive metal, such as that 13. It is, moreover, impossible to implement, with this type of circuit with integrated cooler, circuits of the double-sided type. Finally, as already indicated above, fixing the cooler to the card is difficult to perform and unreliable over time.

La figure 2 représente, vu en coupe, un mode de réalisation du support à connexions électrique et thermique selon l'invention, à refroidissement par convection.Figure 2 shows, seen in section, an embodiment of the support for electrical and thermal connections according to the invention, with convection cooling.

Sur cette figure, où les mêmes éléments que ceux de la figure 1 portent les mêmes références, n'est représentée qu'une barrette de connexion par voie de simplification, le reste du support étant analogue à celui qui est représenté sur la figure 1.In this figure, where the same elements as those in FIG. 1 bear the same references, only a connection strip is shown by way of simplification, the rest of the support being similar to that which is represented in FIG. 1.

La barrette comprend un bloc 2 portant une rainure longitudinale, qui vue en coupe, affecte la forme d'un fer à cheval, avec deux branches en vis-à-vis, correspondant aux deux faces 3 et 4, respectivement dévolues au raccordement électrique et thermique avec la carte 6. La face électrique de la barrette porte des contacts tels que 8, avec une partie 20 assurant la possibilité d'une déformation élastique du contact. Une "patte" de connexion 21 permet le raccordement avec des circuits extérieurs. La face thermique 4 de la barrette porte des contacts thermiques tels que 22, réalisés en matériau bon conducteur de la chaleur, et acheminant l'énergie thermique à éliminer grâce à une section de surface convenable, par une patte de transmission telle que 23, en relation avec un refroidisseur 24 muni d'ailettes 25, et fonctionnant par convection dans l'air.The bar comprises a block 2 carrying a longitudinal groove, which seen in section, takes the shape of a horseshoe, with two branches facing each other, corresponding to the two faces 3 and 4, respectively assigned to the electrical connection and thermal with the card 6. The electrical face of the strip carries contacts such as 8, with a part 20 ensuring the possibility of an elastic deformation of the contact. A connection "tab" 21 allows connection with external circuits. The thermal face 4 of the strip carries thermal contacts such as 22, made of material which is a good conductor of heat, and conveying the thermal energy to be eliminated thanks to a suitable surface section, by a transmission tab such as 23, in relationship with a cooler 24 provided with fins 25, and operating by air convection.

Un tel connecteur fonctionne de la façon suivante : les deux faces 3 et 4 de la barrette 2 sont mobiles l'une par rapport à l'autre, par rotation autour de l'axe 9. Dans la phase de mise en place de la carte, le connecteur est ouvert, la face 4 forme un angle qui dégage la face 3, et l'introduction de la carte 6 est effectuée, positionnée transversalement par la butée 26.Such a connector works in the following way: the two faces 3 and 4 of the bar 2 are movable relative to one another, by rotation about the axis 9. In the phase of placing the card , the connector is open, the face 4 forms an angle which releases the face 3, and the introduction of the card 6 is carried out, positioned transversely by the stop 26.

Le contact électrique occupe la position 27, représentée en tirets. La carte est constituée de deux couches superposées, une couche ou substrat électriquement isolant 6, portant le circuit électrique 7 et ses régions de raccordement, et une couche 28 en matériau à bonne conduction thermique, tel qu'un métal par exemple, couche souvent désignée sous le terme de drain thermique. Dans la phase de raccordement, le connecteur se ferme, comme représenté sur la figure, et le contact thermique 22 s'applique sur la surface du drain. Simultanément, le contact électrique 8 est repoussé et prend par élasticité, la forme représentée en traits continus sur la figure.The electrical contact occupies position 27, shown in dashes. The card consists of two superimposed layers, an electrically insulating layer or substrate 6, carrying the electrical circuit 7 and its connection regions, and a layer 28 made of material with good thermal conduction, such as a metal for example, a layer often designated. under the term of thermal drain. In the connection phase, the connector closes, as shown in the figure, and the thermal contact 22 is applied to the surface of the drain. Simultaneously, the electrical contact 8 is pushed back and takes, by elasticity, the shape shown in solid lines in the figure.

C'est une caractéristique principale de l'invention que, par un choix convenable de la forme, les dimensions et le matériau du contact électrique, la force d'appui nécessaire à une bonne conduction thermique entre le drain 28 et le contact 22 soit obtenue précisément par la force élastique procurée par le contact électrique qui lui fait vis-à-vis.It is a main characteristic of the invention that, by a suitable choice of the shape, the dimensions and the material of the electrical contact, the bearing force necessary for good thermal conduction between the drain 28 and the contact 22 is obtained precisely by the elastic force provided by the electrical contact which makes it opposite.

Une seconde butée 11, parallèle à la direction de mise en place de la carte, fixe l'amplitude de celle-ci pour éviter que, par une compression excessive du contact, la limite d'élasticité ne soit franchie.A second stop 11, parallel to the direction in which the card is put in place, fixes the amplitude of the latter to prevent the elastic limit from being crossed by excessive compression of the contact.

. Par ailleurs, les possibilités de dissipation thermique sont meilleures dans le cas de l'invention, la surface de la bande de contact des bords d'une carte étant supérieure à celle de la seule région centrale, refroidie dans l'art connu de la figure 1.. Furthermore, the possibilities of heat dissipation are better in the case of the invention, the surface of the contact strip of the edges of a card being greater than that of the central region alone, cooled in the known art of the figure. 1.

La figure 3 représente un. autre mode de réalisation du support de l'invention, à refroidissement par conduction.Figure 3 shows one. another embodiment of the support of the invention, with conduction cooling.

Suivant ce mode particulièrement adapté au cas des cartes à dégagement thermique élevé, on substitue, à la mise en oeuvre de la convection dans l'air, celle de la conduction dans une base de grandes dimensions.According to this mode particularly suitable for the case of cards with high thermal release, the implementation of convection in the air is substituted for that of conduction in a large base.

La barrette à pivotement de la figure 2 est alors adaptée, comme représenté sur la figure 3, à ce mode différent en remplaçant, pour la mise en place de la carte, le mouvement de pivotement de la face thermique par un mouvement de translation perpendiculaire au plan de la carte.The pivoting bar of FIG. 2 is then adapted, as shown in FIG. 3, to this different mode by replacing, for the positioning of the card, the pivoting movement of the thermal face by a translational movement perpendicular to the map map.

Le contact thermique avec celle-ci et sa force d'appui résultent dans ce cas encore, de la force élastique du contact électrique 8.The thermal contact therewith and its bearing force again result in this case from the elastic force of the electrical contact 8.

La partie extérieure 30 du refroidisseur ne comporte plus d'ailettes, et elle assume uniquement la fonction de conduction thermique, dans le sens des flèches telles que 31, vers la base 1, comportant une couche isolante 33 et un drain thermique de base 34, en matériau thermiquement bon conducteur.The external part 30 of the cooler no longer has fins, and it only assumes the function of thermal conduction, in the direction of the arrows such as 31, towards the base 1, comprising an insulating layer 33 and a basic heat sink 34, made of thermally good conductive material.

Après mise en place de la carte et de la face thermique de la barrette, un moyen de fixation tel que des vis 35, assure une obtention satisfaisante des deux types de contact désirés.After the card and the thermal face of the bar have been put in place, a fixing means such as screws 35 ensures satisfactory obtaining of the two desired types of contact.

Bien que le connecteur de l'invention assure des résultats satisfaisants tel qu'il a été décrit plus haut, il peut être avantageux d'améliorer la transmission thermique aux points de contact de départ et d'arrivée du conducteur thermique en y interposant un produit fluide, pâteux ou plastique, à base de silicones par exemple, en 36 et 37, qui dispense d'un usinage de surface trop précis entre les régions de contact correspondantes.Although the connector of the invention ensures satisfactory results as described above, it may be advantageous to improve the thermal transmission at the points of contact of departure and arrival of the thermal conductor by interposing a product there. fluid, pasty or plastic, based on silicones for example, in 36 and 37, which dispenses with too precise surface machining between the corresponding contact regions.

Cette interposition est également avantageuse dans le mode de réalisation de la figure 2.This interposition is also advantageous in the embodiment of FIG. 2.

On doit faire remarquer, en terminant, que, bien que la description précédente ait été faite dans le cas d'une carte comportant un drain thermique, les expériences et mesures effectuées par la demanderesse ont montré que le refroidissement recherché était obtenu, dans des conditions satisfaisantes avec des cartes à simple substrat en matériau céramique, rendant plus général le domaine d'application du support à connecteur électrique et thermique de l'invention.It should be noted, in conclusion, that, although the preceding description was made in the case of a card comprising a heat drain, the experiments and measurements carried out by the applicant have shown that the desired cooling was obtained, under conditions satisfactory with single substrate cards made of ceramic material, making the field of application of the support with electrical and thermal connector of the invention more general.

Claims (9)

1. Support pour carte enfichable à raccordement électrique et thermique, comportant un socle plan commun (1), portant plusieurs connecteurs en forme de barrette (2), disposés perpendiculairement entre eux, chaque barrette présentant une rainure pour la réception d'un bord de la carte (6), caractérisé en ce que les deux faces internes (3) (4) de chaque rainure, disposées en vis-à-vis, portent respectivement des éléments de contact électrique (8) et thermique (22), la force d'appui entre la carte et les contacts thermiques étant assurée par l'appui entre la carte et les contacts électriques dotés d'élasticité.1. Support for plug-in card with electrical and thermal connection, comprising a common flat base (1), carrying several strip-shaped connectors (2), arranged perpendicularly to each other, each strip having a groove for receiving an edge of the card (6), characterized in that the two internal faces (3) (4) of each groove, arranged opposite, carry respectively electrical (8) and thermal (22) contact elements, the force of support between the card and the thermal contacts being ensured by the support between the card and the electrical contacts endowed with elasticity. 2. Support pour carte enfichable selon la revendication 1, caractérisé en ce que les deux faces internes d'une rainure sont capables d'un déplacement l'une par rapport à l'autre pour assurer ladite réception d'un bord de la carte.2. Support for plug-in card according to claim 1, characterized in that the two internal faces of a groove are capable of displacement relative to each other to ensure said reception of an edge of the card. 3. Support pour carte enfichable selon la revendication 2, caractérisé en ce que le déplacement est une rotation d'axe parallèle à la longueur de la barrette. -3. Support for plug-in card according to claim 2, characterized in that the displacement is a rotation of axis parallel to the length of the bar. - 4. Support pour carte enfichable selon la revendication 2, caractérisé en ce que le déplacement est une translation de direction perpendiculaire à la longueur de la barrette.4. Support for plug-in card according to claim 2, characterized in that the displacement is a translation of direction perpendicular to the length of the bar. 5. Support pour carte enfichable selon la revendication 1, caractérisé en ce que les contacts thermiques sont en liaison avec un organe refroidisseur par convection supporté par la barrette.5. Support for plug-in card according to claim 1, characterized in that the thermal contacts are in connection with a convection cooler member supported by the bar. 6. Support pour carte enfichable selon la revendication 5, caractérisé en ce que ledit organe refroidisseur est muni d'ailettes augmentant sa surface de convection.6. Support for plug-in card according to claim 5, characterized in that said cooling member is provided with fins increasing its convection surface. 7. Support pour carte enfichable selon la revendication 4, caractérisé en ce que les contacts thermiques sont en liaison avec un organe refroidisseur par conduction thermique constitué par le socle plan commun, l'élément de liaison étant un conducteur thermique supporté par la barrette.7. Support for plug-in card according to claim 4, characterized in that the thermal contacts are in connection with a cooling member by thermal conduction constituted by the common flat base, the connecting element being a thermal conductor supported by the bar. 8. Support pour carte enfichable selon la revendication 5, caractérisé en ce qu'une pâte plastique thermiquement conductrice est mise en place aux deux extrémités du conducteur thermique.8. Support for plug-in card according to claim 5, characterized in that a thermally conductive plastic paste is placed at both ends of the thermal conductor. 9. Support pour carte enfichable selon l'une des revendications 3 ou 4, caractérisé en ce que les barrettes sont au nombre de quatre, disposées sur le socle plan commun suivant un quadrilatère rectangle.9. Support for plug-in card according to one of claims 3 or 4, characterized in that the bars are four in number, arranged on the common flat base in a rectangular quadrilateral.
EP80401490A 1979-10-26 1980-10-21 Pluggable-board support with electrical and thermal connection Expired EP0028187B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7926613A FR2469019A1 (en) 1979-10-26 1979-10-26 SUPPORT FOR PLUG-IN CARD WITH ELECTRICAL AND THERMAL CONNECTION
FR7926613 1979-10-26

Publications (2)

Publication Number Publication Date
EP0028187A1 true EP0028187A1 (en) 1981-05-06
EP0028187B1 EP0028187B1 (en) 1984-05-16

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EP80401490A Expired EP0028187B1 (en) 1979-10-26 1980-10-21 Pluggable-board support with electrical and thermal connection

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US (1) US4314311A (en)
EP (1) EP0028187B1 (en)
JP (1) JPS5673500A (en)
CA (1) CA1170780A (en)
DE (1) DE3067879D1 (en)
FR (1) FR2469019A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054092A1 (en) * 1980-12-12 1982-06-23 Socapex Electric and thermic connector for cards comprising means for electric and thermic conduction, and electric and thermic connection plug pluggable into such a connector
EP0091847A1 (en) * 1982-03-26 1983-10-19 Socapex Connector for a substrate, and electrical connection and convection cooling system utilizing such a connector
EP0147092A2 (en) * 1983-12-27 1985-07-03 Northern Telecom Limited High density low profile multiple contact connector
EP0688067A3 (en) * 1994-06-16 1996-06-19 Framatome Connectors Int Angled card edge connector

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2477828A1 (en) * 1980-03-07 1981-09-11 Thomson Csf Mat Tel ELECTRICAL AND THERMAL INTERCONNECTION SYSTEM FOR ELECTRONIC CIRCUIT BOARDS, AND ELECTRICAL CABINET EQUIPPED WITH SUCH A SYSTEM
DE3020902A1 (en) * 1980-06-02 1981-12-17 Robert Bosch Gmbh, 7000 Stuttgart ELECTRONIC CONTROL UNIT, IN PARTICULAR FOR MOTOR VEHICLES
FR2524203B1 (en) * 1982-03-26 1985-09-13 Socapex ELECTRICAL CONNECTION AND CONDUCTIVE HEAT EXHAUST SYSTEM
DE3380920D1 (en) * 1982-03-26 1990-01-04 Socapex SYSTEM FOR ELECTRICAL CONNECTION AND HEAT EXTRACTION THROUGH HEATING PIPE FOR ELECTRONIC COMPONENTS.
FR2524205B1 (en) * 1982-03-26 1985-10-04 Socapex CERAMIC MICRO-HOUSING CONNECTOR WITH PERIMETRIC CONNECTIONS AND ELECTRICAL AND THERMAL CONNECTION SYSTEM USING SUCH A CONNECTOR
DE3245072A1 (en) * 1982-12-06 1984-06-07 Siemens AG, 1000 Berlin und 8000 München Thermal plug connection
DE3430591A1 (en) * 1984-08-20 1986-02-27 Precitronic Gesellschaft für Feinmechanik und Electronic mbH, 2000 Hamburg Contact-making device between an apparatus and a consumable article
US5161087A (en) * 1990-10-15 1992-11-03 International Business Machines Corporation Pivotal heat sink assembly
US5079567A (en) * 1991-03-04 1992-01-07 Eastman Kodak Company Leaf-spring assembly for LED printhead
DE19532330A1 (en) * 1995-09-01 1997-03-06 Teves Gmbh Alfred Mounting assembly for speed sensor for revolution counting in vehicle braking system
US6055158A (en) * 1999-03-16 2000-04-25 Framatome Connectors Interlock, Inc. Electronic component heat sink assembly
JP2001185306A (en) 1999-12-28 2001-07-06 Jst Mfg Co Ltd Connector for module
JP2001185307A (en) * 1999-12-28 2001-07-06 Jst Mfg Co Ltd Connector for module
GB2436170A (en) * 2006-03-17 2007-09-19 Amstrad Plc Cooling or heating device in a chip card reader
DE102007055320B3 (en) * 2007-11-20 2009-03-05 Continental Automotive Gmbh Electrical plug contact of an electric drive system
DE102007055235B3 (en) * 2007-11-20 2009-06-10 Continental Automotive Gmbh Electrical plug contact of an electric drive system
GB2463745A (en) * 2008-04-03 2010-03-31 Bosch Gmbh Robert Electric spring contact on pin of sealed module mechanically urges module towards heatsink
DE102009001823A1 (en) * 2008-04-03 2009-10-08 Robert Bosch Gmbh Electrical arrangement as a cooling concept
DE102011013711B3 (en) * 2011-03-11 2012-05-24 Amphenol-Tuchel Electronics Gmbh Hochstromstecker
DE102015212660B4 (en) * 2015-07-07 2020-10-08 Volkswagen Aktiengesellschaft Charging plug
JP6625004B2 (en) * 2016-04-14 2019-12-25 キヤノン株式会社 Card type recording device and slot device
CN107591655B (en) * 2017-07-28 2021-06-18 富士康(昆山)电脑接插件有限公司 Card edge connector and assembly thereof
EP3874564A4 (en) * 2018-11-01 2022-07-27 Smiths Interconnect Canada Inc. Heat dissipation from active devices connected to connectors
CN111521214B (en) * 2020-05-06 2022-01-21 山东交通学院 Engineering machine tool electrical equipment detection device
DE102020208113B4 (en) 2020-06-30 2022-04-28 Yamaichi Electronics Deutschland Gmbh Printed circuit board holder with cooling element and system comprising a printed circuit board holder and a printed circuit board

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965851A1 (en) * 1968-12-30 1970-07-02 Gen Motors Corp Thermally conductive holder for a printed circuit board
US4063791A (en) * 1976-12-27 1977-12-20 Cutchaw John M Connector for leadless integrated circuit packages

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506878A (en) * 1968-09-26 1970-04-14 Hughes Aircraft Co Apparatus for mounting miniature electronic components
US3631325A (en) * 1970-06-15 1971-12-28 Sperry Rand Corp Card module and end wall treatment facilitating heat transfer and sliding
GB1544651A (en) * 1976-10-29 1979-04-25 Secr Defence Edge connectors
US4082407A (en) * 1977-05-20 1978-04-04 Amerace Corporation Terminal block with encapsulated heat sink

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1965851A1 (en) * 1968-12-30 1970-07-02 Gen Motors Corp Thermally conductive holder for a printed circuit board
US4063791A (en) * 1976-12-27 1977-12-20 Cutchaw John M Connector for leadless integrated circuit packages

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN Vol. 18, Nr. 3, Aout 1975, New York US R.H.A. WATSON: "Full semiconductor wafer package", page 642 * Page 642 * *
IBM TECHNICAL DISCLOSURE BULLETIN Vol. 20, Nr. 11A, Avril 1978 New York US P.W. HARDIN: "Integral edge connector", pages 4346-4348. * Page 4348 * *
IBM TECHNICAL DISCLOSURE BULLETIN, Vol. 20, No. 9, Fevrier 1978 New York US K.P. MORAN et al.: "Spring-Loaded module connectors for mounting an array of modules on circuit board", pages 3434-3435 * Pages 3434-3435 * *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054092A1 (en) * 1980-12-12 1982-06-23 Socapex Electric and thermic connector for cards comprising means for electric and thermic conduction, and electric and thermic connection plug pluggable into such a connector
EP0091847A1 (en) * 1982-03-26 1983-10-19 Socapex Connector for a substrate, and electrical connection and convection cooling system utilizing such a connector
EP0147092A2 (en) * 1983-12-27 1985-07-03 Northern Telecom Limited High density low profile multiple contact connector
EP0147092A3 (en) * 1983-12-27 1987-01-21 Northern Telecom Limited High density low profile multiple contact connector
EP0688067A3 (en) * 1994-06-16 1996-06-19 Framatome Connectors Int Angled card edge connector

Also Published As

Publication number Publication date
CA1170780A (en) 1984-07-10
US4314311A (en) 1982-02-02
DE3067879D1 (en) 1984-06-20
FR2469019A1 (en) 1981-05-08
EP0028187B1 (en) 1984-05-16
JPS5673500A (en) 1981-06-18
FR2469019B1 (en) 1983-03-04

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