EP3450832A1 - Surface light source device for card edge connector - Google Patents

Surface light source device for card edge connector Download PDF

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Publication number
EP3450832A1
EP3450832A1 EP18187039.5A EP18187039A EP3450832A1 EP 3450832 A1 EP3450832 A1 EP 3450832A1 EP 18187039 A EP18187039 A EP 18187039A EP 3450832 A1 EP3450832 A1 EP 3450832A1
Authority
EP
European Patent Office
Prior art keywords
source
rigid support
card edge
edge connector
connection means
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Withdrawn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
EP18187039.5A
Other languages
German (de)
French (fr)
Inventor
Jean-Marc COLOMBEL
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 Vision SAS
Original Assignee
Valeo Vision 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 Vision SAS filed Critical Valeo Vision SAS
Publication of EP3450832A1 publication Critical patent/EP3450832A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/155—Surface emitters, e.g. organic light emitting diodes [OLED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F21S43/145—Surface emitters, e.g. organic light emitting diodes [OLED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F21S43/195—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F21Y2115/15—Organic light-emitting diodes [OLED]

Definitions

  • the invention relates to lighting devices for motor vehicles.
  • the invention relates to a device comprising a surface light source of the organic light-emitting diode type, OLED, as well as the connection of such a source.
  • OLED organic light-emitting diode
  • the structure of the diode comprises a superposition of several organic semiconductor layers between two electrodes of which one (at least) is transparent.
  • OLED technology allows for example the realization of surface light sources.
  • the light is emitted by a predefined surface, corresponding to the extent of the semiconductor layers of the light source.
  • this property makes OLED technology particularly interesting in the field of automotive lighting, which requires luminous surfaces, particularly in the field of light signaling. It is even possible to make flexible surface sources.
  • a surface light source is a thin component of small thickness.
  • a surface light source of a light module for a motor vehicle comprises an electrical connector welded to the source.
  • the electrical connector is connected to a connection harness through which the source is supplied with electric power.
  • the realization of a weld requires a specific step during the production of the source and / or the assembly of a light module.
  • this connection makes the repair of the source difficult, since the source is welded to the harness.
  • the invention aims to overcome at least one of the problems posed by the prior art. More specifically, the invention aims to provide a device that allows the reversible electrical connection of a surface light source.
  • a device comprising a surface source of light for a motor vehicle.
  • the source comprising electrical connection means.
  • the device is remarkable in that it further comprises a rigid support on which said electrical connection means is fixed, the support being adapted to cooperate with a card edge connector to connect the latter electrically to said surface source.
  • the electrical connection means may preferably comprise electrical tracks connected to the anode and the cathode of the surface source on the one hand, and to be contacted by a card edge connector on the other hand.
  • the connection means may preferably include a conductive pad including the electrical contacts that can be contacted by the card edge connector.
  • the rigid support may have a geometry consistent with that of the surface source.
  • the rigid support may be smaller than the extent of the surface source.
  • the rigid support may comprise at least one portion intended to comprise a fixing element of the surface source.
  • the surface source may preferentially be fixed on the rigid support.
  • the attachment can be achieved by bonding at least a portion of the surface source on the rigid support.
  • connection means may preferably be at one end of the surface source. Fixing the connection means on the rigid support may preferably be performed using an adhesive or with a mechanical attachment.
  • the mechanical attachment may for example comprise at least one screw.
  • connection means of the surface source can be fixed near an edge of the rigid support, so as to establish a direct electrical connection with a card edge connector.
  • the rigid support may preferably comprise an electrically conductive track for electrically connecting the connection means of the surface source to a card edge connector.
  • the rigid support may be made of electrically insulating plastic resin.
  • the surface light source may preferably be supported at least in part by a flexible support.
  • the surface source of light may have a planar geometry but curved in space.
  • the flexible support may be a flexible printed circuit board (FPCB).
  • FPCB flexible printed circuit board
  • the surface source may preferably be fixed on said flexible support.
  • the attachment can be performed by gluing the surface source onto the flexible support.
  • the surface source can be fixed on the rigid support by means of its flexible support.
  • the surface light source may preferably include an organic light emitting diode, OLED.
  • references 100 and 200 denote two embodiments of a device according to the invention.
  • FIG. 1 shows a section through a device 100 according to a preferred embodiment of the invention, in cooperation with a card edge connector 10, which does not form part of the present invention.
  • a card edge connector comprises two opposing jaws 12, 14 generally shaped in the manner of a plastic plug. In the gap between the jaws 12, 14 is inserted in known manner the edge of a PCB ("printed circuit board") in the manner of a plug. The depth of the interstice is several millimeters to several centimeters, so as to hold a card inserted satisfactorily while being able to contact an electrical contact of the card located at most a few millimeters from its edge.
  • At least one of the jaws 12 of the card edge connector 10 comprises on its surface which is oriented to contact the plug when the latter is inserted, at least one electrical contact connected to at least one electrical conductor.
  • the plug 10 made of plastic material is generally connected to a harness comprising at least one electrical conductor 16. This type of connector 10 makes it possible to connect a harness in a removable and reversible manner to a card, for example of the PCB type.
  • the device 100 comprises a surface source of light 110, for example of the light-emitting diode type, OLED.
  • the source 110 comprises an electrical connection means 114.
  • the device 100 also comprises a rigid support 120 on which said electrical connection means 114 is fixed. As indicated on the figure 1 , the rigid support 120 is adapted to cooperate with a card edge connector 10 to connect the latter electrically to said surface source.
  • the electrical connection is made by contact between the connection means 114 and the contacts of the electrical conductors 16.
  • the connection means 114 comprises for example electrical tracks connected to the anode and the cathode of the surface source respectively.
  • the surface light source 110 also includes a light emitting portion 112, which emits light when an electric current of a predetermined intensity passes through it from its anode to its cathode.
  • OLED surface sources are inherently known in the art and their production, structure and operation will not be described in detail in the context of the present invention.
  • the combined thickness of the electrical connection means 114 and the rigid support 120 is such that when the two elements are fixed one on the other, the jaws of a card edge connector 10 are able to come into contact with each other. part with the electrical connection means 114, and secondly with the opposite side of the rigid support 120.
  • the dimensions of the electrical connection means 114 are exaggerated for purposes of illustration.
  • the thickness of the electrical connection means 114 is negligible compared to the thickness of the rigid support.
  • the rigid support is by way of example produced from an electrically insulating plastic resin.
  • the card edge connector 10 makes it possible to connect the surface light source 110 to a device for controlling the power supply of a light module for a motor vehicle.
  • a device for controlling the power supply of a light module for a motor vehicle make it possible to supply an electric current of an intensity appropriate to the power supply of the surface source, from an input electric current supplied by a source of current internal to the vehicle, such as a battery.
  • the operation and structure of such control devices are known in the art and will not be described in detail in the context of the invention.
  • the connector 114 is fixed to the rigid support 120.
  • the extent of the rigid support 120 is sufficient to support the connector 114 and to fit into the card edge connector 10.
  • the attachment between the connector 114 and the support rigid is for example by gluing, screwing or any other suitable fastening means.
  • the support 120 comprises an electrically conductive track on its surface, which is for example produced by a copper deposition process.
  • the connection means of the surface light source come into direct contact with the card edge connector.
  • the connection means 114 is fixed on the rigid support so as to contact said electrically conductive track, which it also contacts the inner jaw 12 of the card edge connector.
  • the thickness of the rigid support is appropriately selected so that the carrier can be plugged by itself into the socket formed by the jaws of the card edge connector.
  • the surface source of light including its light-emitting portion, is fixed, for example by gluing, onto the rigid support, which may preferably have a geometry conforming to that of the surface source, although other geometries can be made without departing from the scope of the present invention.
  • the figure 2 shows another embodiment of the device 200 according to the invention, in an exploded view.
  • the device 200 comprises a surface light source 210, which comprises for example a light emitting diode, OLED.
  • the light-emitting planar portion 212 curvily extends into space.
  • the source 210 comprises an electrical connection means 214.
  • the source 210 is supported on a flexible substrate, for example of the flexible printed circuit board (FPCB) type 230.
  • FPCB flexible printed circuit board
  • the source is integrally fixed on the flexible support, while in other embodiments, only one or more parts of the source 210 are attached thereto. Fixing is preferably carried out using an adhesive.
  • the device 200 also comprises a rigid support 220 on which, according to the example shown, the source 210 including the light emitting portion 212 and the electrical connection means 214 is fixed.
  • the shape of the rigid support 220 matches that of the source 210 so that the entire source 210 can be fixed, by means of the flexible support 230, on the rigid support 220. In this example, it is the flexible support 230 which is in direct contact with the rigid support 220.
  • the rigid support 220 comprises at one end a portion 222 for supporting the connection means 214 of the surface source 210.
  • the portion 222 is adapted to cooperate with a card edge connector not illustrated to connect the latter electrically to said surface source.
  • the electrical connection is made by contact between the connection means 214 and the contact of the electrical conductor included in the card edge connector.
  • the combined thickness of the electrical connection means 214 and the portion 222 of the rigid support 220 is such that when the two elements are fixed one on the other, the jaws of a card edge connector are able to enter. contact on the one hand with the electrical connection means 214, and on the other hand with the opposite face of the rigid support 220.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

L'invention propose un dispositif pour connecter un source lumineuse surfacique, par exemple de type diode électroluminescente organique, OLED, ayant une épaisseur fine, à un connecteur électrique amovible de type connecteur bord de carte.

Figure imgaf001
The invention proposes a device for connecting a surface light source, for example of organic light-emitting diode type, OLED, having a thin thickness, to a removable electrical connector of card edge connector type.
Figure imgaf001

Description

L'invention se rapporte aux dispositifs lumineux pour véhicules automobiles. L'invention concerne en particulier un dispositif comprenant une source lumineuse surfacique de type diode électroluminescente organique, OLED, ainsi que la connectique d'une telle source.The invention relates to lighting devices for motor vehicles. In particular, the invention relates to a device comprising a surface light source of the organic light-emitting diode type, OLED, as well as the connection of such a source.

Une diode électroluminescente organique, OLED, (« organic light-emitting diode ») est un composant semi-conducteur qui émet de la lumière lorsqu'une tension électrique suffisamment élevée est appliqué entre son anode et sa cathode. L'intensité lumineuse émise par la source est en général une fonction croissante de l'intensité du courant électrique qui la traverse. La structure de la diode comprend une superposition de plusieurs couches semi-conductrices organiques entre deux électrodes dont l'une (au moins) est transparente.An organic light-emitting diode (OLED) is a semiconductor component that emits light when a sufficiently high voltage is applied between its anode and its cathode. The light intensity emitted by the source is generally an increasing function of the intensity of the electric current flowing through it. The structure of the diode comprises a superposition of several organic semiconductor layers between two electrodes of which one (at least) is transparent.

La technologie OLED permet par exemple la réalisation de sources lumineuses surfaciques. La lumière est émise par une surface prédéfinie, correspondant à l'étendue des couches semi-conductrices de la source lumineuse. Par rapport à des sources connues ponctuelles, cette propriété rend la technologie OLED particulièrement intéressante dans le domaine de l'éclairage automobile, qui requiert des surfaces lumineuses notamment dans le domaine de la signalisation lumineuse. Il est même possible de réaliser des sources surfaciques flexibles. Une source lumineuse surfacique est un composant mince d'une épaisseur peu importante.OLED technology allows for example the realization of surface light sources. The light is emitted by a predefined surface, corresponding to the extent of the semiconductor layers of the light source. Compared with known point sources, this property makes OLED technology particularly interesting in the field of automotive lighting, which requires luminous surfaces, particularly in the field of light signaling. It is even possible to make flexible surface sources. A surface light source is a thin component of small thickness.

De manière connue, une source lumineuse surfacique d'un module lumineux pour un véhicule automobile comprend un connecteur électrique soudé à la source. Le connecteur électrique est relié à un harnais de connexion à travers lequel la source est alimentée en courant électrique. La réalisation d'une soudure requiert une étape spécifique lors de la production de la source et/ou de l'assemblage d'une module lumineux. En plus, lors d'un défaut de la source, cette connexion rend la réparation de la source difficile, puisque la source est soudée au harnais.In known manner, a surface light source of a light module for a motor vehicle comprises an electrical connector welded to the source. The electrical connector is connected to a connection harness through which the source is supplied with electric power. The realization of a weld requires a specific step during the production of the source and / or the assembly of a light module. In addition, during a fault of the source, this connection makes the repair of the source difficult, since the source is welded to the harness.

L'invention a pour objectif de pallier à au moins un des problèmes posés par l'art antérieur. Plus précisément, l'invention a pour objectif de proposer un dispositif qui permet la connexion électrique réversible d'une source lumineuse surfacique.The invention aims to overcome at least one of the problems posed by the prior art. More specifically, the invention aims to provide a device that allows the reversible electrical connection of a surface light source.

Selon un premier aspect de l'invention, un dispositif comprenant une source surfacique de lumière pour un véhicule automobile est proposé. La source comprenant un moyen de connexion électrique. Le dispositif est remarquable en ce qu'il comprend en outre un support rigide sur lequel ledit moyen de connexion électrique est fixé, le support étant apte à coopérer avec un connecteur bord de carte afin de connecter ce dernier électriquement à ladite source surfacique.According to a first aspect of the invention, a device comprising a surface source of light for a motor vehicle is proposed. The source comprising electrical connection means. The device is remarkable in that it further comprises a rigid support on which said electrical connection means is fixed, the support being adapted to cooperate with a card edge connector to connect the latter electrically to said surface source.

Le moyen de connexion électrique peut de préférence comprendre des pistes électriques reliées à l'anode et la cathode de la source surfacique d'une part, et permettant d'être contactées par un connecteur bord de carte d'autre part. Le moyen de connexion peut de préférence comprendre une plage conductrice comprenant les contacts électriques qui peuvent être contactés par le connecteur bord de carte.The electrical connection means may preferably comprise electrical tracks connected to the anode and the cathode of the surface source on the one hand, and to be contacted by a card edge connector on the other hand. The connection means may preferably include a conductive pad including the electrical contacts that can be contacted by the card edge connector.

De préférence, le support rigide peut présenter une géométrie conforme à celle de la source surfacique. Alternativement, le support rigide peut être plus petit que l'étendue de la source surfacique. De préférence, le support rigide peut comprendre au moins une portion destinée à comprendre un élément de fixation de la source surfacique.Preferably, the rigid support may have a geometry consistent with that of the surface source. Alternatively, the rigid support may be smaller than the extent of the surface source. Preferably, the rigid support may comprise at least one portion intended to comprise a fixing element of the surface source.

La source surfacique peut préférentiellement être fixée sur le support rigide. De préférence, la fixation peut être réalisée par collage d'au moins une partie de la source surfacique sur le support rigide.The surface source may preferentially be fixed on the rigid support. Preferably, the attachment can be achieved by bonding at least a portion of the surface source on the rigid support.

Le moyen de connexion peut de préférence se trouver à une extrémité de la source surfacique. La fixation du moyen de connexion sur le support rigide peut de préférence être réalisée à l'aide d'une colle ou à l'aide d'une fixation mécanique. La fixation mécanique peut par exemple comprendre au moins une vis.The connection means may preferably be at one end of the surface source. Fixing the connection means on the rigid support may preferably be performed using an adhesive or with a mechanical attachment. The mechanical attachment may for example comprise at least one screw.

De préférence, le moyen de connexion de la source surfacique peut être fixé en proximité d'un bord du support rigide, de façon à pouvoir établir une connexion électrique directe avec un connecteur bord de carte.Preferably, the connection means of the surface source can be fixed near an edge of the rigid support, so as to establish a direct electrical connection with a card edge connector.

Le support rigide peut de préférence comprend une piste électriquement conductrice destinée à relier électriquement le moyen de connexion de la source surfacique à un connecteur bord de carte.The rigid support may preferably comprise an electrically conductive track for electrically connecting the connection means of the surface source to a card edge connector.

De préférence, le support rigide peut être réalisé en résine plastique électriquement isolante.Preferably, the rigid support may be made of electrically insulating plastic resin.

La source surfacique de lumière peut de préférence être supportée au moins en partie par un support flexible.The surface light source may preferably be supported at least in part by a flexible support.

De préférence, la source surfacique de lumière peut avoir une géométrie plane mais courbée dans l'espace.Preferably, the surface source of light may have a planar geometry but curved in space.

De manière préférée, le support flexible peut être circuit imprimé flexible, FPCB (« flexible printed circuit board »).Preferably, the flexible support may be a flexible printed circuit board (FPCB).

La source surfacique peut de préférence être fixée sur ledit support flexible. De préférence, la fixation peut être réalisée par collage de la source surfacique sur le support flexible.The surface source may preferably be fixed on said flexible support. Preferably, the attachment can be performed by gluing the surface source onto the flexible support.

De préférence, la source surfacique peut être fixée sur le support rigide moyennant son support flexible.Preferably, the surface source can be fixed on the rigid support by means of its flexible support.

La source surfacique de lumière peut de manière préférentielle comprendre une diode électroluminescente organique, OLED.The surface light source may preferably include an organic light emitting diode, OLED.

En utilisant les mesures proposées par la présente invention, il devient possible de connecter une source surfacique de lumière, qui est un composant mince d'une épaisseur peu importante, à un connecteur amovible de type bord de carte (« card edge »), afin de relier la source surfacique par exemple à un dispositif d'alimentation électrique.By using the measurements proposed by the present invention, it becomes possible to connect a surface source of light, which is a thin component of small thickness, to a card edge type removable connector ("card edge"), so that to connect the surface source for example to a power supply device.

D'autres caractéristiques et avantages de la présente invention seront mieux compris à l'aide de la description exemplaire et des dessins parmi lesquels :

  • la figure 1 montre de manière schématisée une coupe à travers un dispositif selon un mode de réalisation préféré de l'invention ;
  • la figure 2 montre une vue explosée en perspective d'un dispositif selon un mode de réalisation préféré de l'invention.
Other features and advantages of the present invention will be better understood from the exemplary description and the drawings, among which:
  • the figure 1 shows schematically a section through a device according to a preferred embodiment of the invention;
  • the figure 2 shows an exploded perspective view of a device according to a preferred embodiment of the invention.

Sauf indication spécifique du contraire, des caractéristiques techniques décrites en détail pour un mode de réalisation donné peuvent être combinées aux caractéristiques techniques décrites dans le contexte d'autres modes de réalisation décrits à titre d'exemples et de manière non limitative. Des numéros de référence similaires seront utilisés pour décrire des concepts semblables à travers différents modes de réalisation de l'invention. Par exemple, les références 100 et 200 désignent deux modes de réalisation d'un dispositif selon l'invention.Unless specifically indicated otherwise, technical characteristics described in detail for a given embodiment may be combined with the technical characteristics described in the context of other embodiments described by way of examples and in a non-limiting manner. Similar reference numerals will be used to describe similar concepts through different embodiments of the invention. For example, references 100 and 200 denote two embodiments of a device according to the invention.

L'illustration de la figure 1 montre une coupe à travers un dispositif 100 selon un mode de réalisation préférentiel de l'invention, en coopération avec un connecteur bord de carte 10, qui lui ne fait pas partie de la présente invention.The illustration of the figure 1 shows a section through a device 100 according to a preferred embodiment of the invention, in cooperation with a card edge connector 10, which does not form part of the present invention.

Un connecteur bord de carte ou « card edge » comprend deux mâchoires opposées 12, 14 façonnées de manière générale dans de la manière d'une prise en matière plastique. Dans l'interstice entre les mâchoires 12, 14 vient s'insérer de manière connue le bord d'une carte de circuit imprimé, PCB (« printed circuit board ») de la manière d'une fiche. La profondeur de l'interstice est de plusieurs millimètres à plusieurs centimètres, de manière à pouvoir tenir une carte insérée de manière satisfaisante tout en pouvant contacter un contact électrique de la carte située à au plus quelques millimètres de son bord. Au moins une des mâchoires 12 du connecteur bord de carte 10 comprend sur sa surface qui est orientée de manière à contacter la fiche lorsque cette dernière est insérée, au moins un contact électrique relié à au moins un conducteur électrique. La prise 10 en matière plastique est en général reliée à un harnais comprenant au moins un conducteur électrique 16. Ce type de connecteur 10 permet de connecter un harnais de manière amovible et réversible à une carte, par exemple de type PCB.A card edge connector comprises two opposing jaws 12, 14 generally shaped in the manner of a plastic plug. In the gap between the jaws 12, 14 is inserted in known manner the edge of a PCB ("printed circuit board") in the manner of a plug. The depth of the interstice is several millimeters to several centimeters, so as to hold a card inserted satisfactorily while being able to contact an electrical contact of the card located at most a few millimeters from its edge. At least one of the jaws 12 of the card edge connector 10 comprises on its surface which is oriented to contact the plug when the latter is inserted, at least one electrical contact connected to at least one electrical conductor. The plug 10 made of plastic material is generally connected to a harness comprising at least one electrical conductor 16. This type of connector 10 makes it possible to connect a harness in a removable and reversible manner to a card, for example of the PCB type.

Le dispositif 100 comprend une source surfacique de lumière 110, par exemple de type diode électroluminescente, OLED. La source 110 comprend un moyen de connexion électrique 114. Le dispositif 100 comprend également un support rigide 120 sur lequel ledit moyen de connexion électrique 114 est fixé. Comme indiqué sur la figure 1, le support rigide 120 est apte à coopérer avec un connecteur bord de carte 10 afin de connecter ce dernier électriquement à ladite source surfacique. La connexion électrique se fait par contact entre le moyen de connexion 114 et les contacts des conducteurs électriques 16. Le moyen de connexion 114 comprend à titre d'exemple des pistes électriques reliées à l'anode et à la cathode de la source surfacique respectivement. La source surfacique de lumière 110 comprend également une portion émettrice de lumière 112, qui émet de la lumière lorsqu'un courant électrique d'une intensité prédéterminée la traverse depuis son anode vers sa cathode. Les sources surfaciques de type OLED sont en soi connues dans l'art et leur production, leur structure et leur fonctionnement ne seront pas décrits en détails dans le cadre de la présente invention.The device 100 comprises a surface source of light 110, for example of the light-emitting diode type, OLED. The source 110 comprises an electrical connection means 114. The device 100 also comprises a rigid support 120 on which said electrical connection means 114 is fixed. As indicated on the figure 1 , the rigid support 120 is adapted to cooperate with a card edge connector 10 to connect the latter electrically to said surface source. The electrical connection is made by contact between the connection means 114 and the contacts of the electrical conductors 16. The connection means 114 comprises for example electrical tracks connected to the anode and the cathode of the surface source respectively. The surface light source 110 also includes a light emitting portion 112, which emits light when an electric current of a predetermined intensity passes through it from its anode to its cathode. OLED surface sources are inherently known in the art and their production, structure and operation will not be described in detail in the context of the present invention.

L'épaisseur combinée du moyen de connexion électrique 114 et du support rigide 120 est telle que lorsque les deux éléments sont fixés l'un sur l'autre, les mâchoires d'un connecteur bord de carte 10 sont aptes à entrer en contact d'une part avec le moyen de connexion électrique 114, et d'autre part avec la face opposée du support rigide 120. Sur le schéma de la figure 1, les dimensions du moyen de connexion électrique 114 sont exagérées à des fins d'illustration. En réalité, l'épaisseur du moyen de connexion électrique 114 est négligeable par rapport à l'épaisseur du support rigide. A lui tout seul, il est impossible pour le moyen de connexion électrique 114 de la source surfacique lumineuse 110 de coopérer avec un connecteur bord de carte. Le support rigide est à titre d'exemple produit à partir d'une résine plastique électriquement isolante.The combined thickness of the electrical connection means 114 and the rigid support 120 is such that when the two elements are fixed one on the other, the jaws of a card edge connector 10 are able to come into contact with each other. part with the electrical connection means 114, and secondly with the opposite side of the rigid support 120. In the diagram of the figure 1 the dimensions of the electrical connection means 114 are exaggerated for purposes of illustration. In reality, the thickness of the electrical connection means 114 is negligible compared to the thickness of the rigid support. By itself, it is impossible for the electrical connection means 114 of the light surface source 110 to cooperate with a card edge connector. The rigid support is by way of example produced from an electrically insulating plastic resin.

Le connecteur bord de carte 10 permet de relier la source surfacique de lumière 110 à un dispositif de pilotage de l'alimentation électrique d'un module lumineux pour véhicule automobile. De tels dispositifs permettent de fournir un courant électrique d'une intensité appropriée à l'alimentation de la source surfacique, à partir d'un courant électrique d'entrée fourni par une source de courant interne au véhicule, telle qu'une batterie. Le fonctionnement et la structure de tels dispositifs de pilotage sont connus dans l'art et ne seront pas décrits en détails dans le cadre de l'invention.The card edge connector 10 makes it possible to connect the surface light source 110 to a device for controlling the power supply of a light module for a motor vehicle. Such devices make it possible to supply an electric current of an intensity appropriate to the power supply of the surface source, from an input electric current supplied by a source of current internal to the vehicle, such as a battery. The operation and structure of such control devices are known in the art and will not be described in detail in the context of the invention.

Selon le mode de réalisation de la figure 1, uniquement le connecteur 114 est fixé au support rigide 120. L'étendue du support rigide 120 est suffisante pour permettre de supporter le connecteur 114 et pour s'insérer dans le connecteur bord de carte 10. La fixation entre le connecteur 114 et le support rigide se fait par exemple par collage, par vissage ou par tout autre moyen de fixation approprié.According to the embodiment of the figure 1 only the connector 114 is fixed to the rigid support 120. The extent of the rigid support 120 is sufficient to support the connector 114 and to fit into the card edge connector 10. The attachment between the connector 114 and the support rigid is for example by gluing, screwing or any other suitable fastening means.

Bien que l'exemple de la figure 1 montre un contact électrique direct entre le connecteur 114 et le contact du connecteur bord de carte 10, l'invention ne se limite pas à cette structure. En effet, selon un autre mode de réalisation non-illustré, le support 120 comprend une piste électriquement conductrice à sa surface, qui est par exemple produite par un procédé de dépôt de cuivre. Dans un tel cas, il n'est pas nécessaire que le moyen de connexion de la source surfacique de lumière entre en contact direct avec le connecteur bord de carte. Il suffit que le moyen de connexion 114 soit fixé sur le support rigide de manière à contacter ladite piste électriquement conductrice, qui elle contacte d'autre part la mâchoire interne 12 du connecteur bord de carte. Dans ce mode de réalisation, l'épaisseur de du support rigide est choisie de manière appropriée de manière à ce que le support peut être enfiché à lui tout seul dans la prise formée par les mâchoires du connecteur bord de carte.Although the example of the figure 1 shows a direct electrical contact between the connector 114 and the card edge connector contact 10, the invention is not limited to this structure. Indeed, according to another embodiment not illustrated, the support 120 comprises an electrically conductive track on its surface, which is for example produced by a copper deposition process. In such a case, it is not necessary that the connection means of the surface light source come into direct contact with the card edge connector. It is sufficient that the connection means 114 is fixed on the rigid support so as to contact said electrically conductive track, which it also contacts the inner jaw 12 of the card edge connector. In this embodiment, the thickness of the rigid support is appropriately selected so that the carrier can be plugged by itself into the socket formed by the jaws of the card edge connector.

Selon un autre mode de réalisation préféré, la source surfacique de lumière, y compris sa portion émettrice de lumière est fixée, par exemple par collage, sur le support rigide, qui peut préférentiellement avoir une géométrie conforme à celle de la source surfacique, bien que d'autres géométries peuvent être réalisées sans pour autant sortir du cadre de la présente invention.According to another preferred embodiment, the surface source of light, including its light-emitting portion, is fixed, for example by gluing, onto the rigid support, which may preferably have a geometry conforming to that of the surface source, although other geometries can be made without departing from the scope of the present invention.

La figure 2 montre un autre mode de réalisation du dispositif 200 selon l'invention, dans une vue explosée. Le dispositif 200 comprend une source surfacique de lumière 210, qui comprend par exemple une diode électroluminescente, OLED. La portion plane émettrice de lumière 212 s'étend de manière courbée dans l'espace. La source 210 comprend un moyen de connexion électrique 214. La source 210 est supporté sur un substrat flexible, par exemple de type circuit imprimé flexible, FPCB (« flexible printed circuit board ») 230. Dans l'exemple de la figure 2, la source est fixée intégralement sur le support flexible, alors que dans d'autres modes de réalisation, seulement une ou plusieurs parties de la source 210 y sont fixées. La fixation est de préférence réalisée à l'aide d'une colle.The figure 2 shows another embodiment of the device 200 according to the invention, in an exploded view. The device 200 comprises a surface light source 210, which comprises for example a light emitting diode, OLED. The light-emitting planar portion 212 curvily extends into space. The source 210 comprises an electrical connection means 214. The source 210 is supported on a flexible substrate, for example of the flexible printed circuit board (FPCB) type 230. In the example of FIG. figure 2 , the source is integrally fixed on the flexible support, while in other embodiments, only one or more parts of the source 210 are attached thereto. Fixing is preferably carried out using an adhesive.

Le dispositif 200 comprend également un support rigide 220 sur lequel, selon l'exemple montré, la source 210 y compris la portion émettrice de lumière 212 et le moyen de connexion électrique 214 est fixée. La forme du support rigide 220 épouse celle de la source 210 de manière à ce que l'intégralité de la source 210 peut être fixée, moyennant le support flexible 230, sur le support rigide 220. Dans cet exemple, c'est le support flexible 230 qui est en contact direct avec le support rigide 220. Le support rigide 220 comprend à une extrémité une partie 222 destinée à supporter le moyen de connexion 214 de la source surfacique 210. La partie 222 est apte à coopérer avec un connecteur bord de carte non-illustré afin de connecter ce dernier électriquement à ladite source surfacique. La connexion électrique se fait par contact entre le moyen de connexion 214 et le contact du conducteur électrique compris dans le connecteur bord de carte.The device 200 also comprises a rigid support 220 on which, according to the example shown, the source 210 including the light emitting portion 212 and the electrical connection means 214 is fixed. The shape of the rigid support 220 matches that of the source 210 so that the entire source 210 can be fixed, by means of the flexible support 230, on the rigid support 220. In this example, it is the flexible support 230 which is in direct contact with the rigid support 220. The rigid support 220 comprises at one end a portion 222 for supporting the connection means 214 of the surface source 210. The portion 222 is adapted to cooperate with a card edge connector not illustrated to connect the latter electrically to said surface source. The electrical connection is made by contact between the connection means 214 and the contact of the electrical conductor included in the card edge connector.

L'épaisseur combinée du moyen de connexion électrique 214 et de le partie 222 du support rigide 220 est telle que lorsque les deux éléments sont fixés l'un sur l'autre, les mâchoires d'un connecteur bord de carte sont aptes à entrer en contact d'une part avec le moyen de connexion électrique 214, et d'autre part avec la face opposée du support rigide 220.The combined thickness of the electrical connection means 214 and the portion 222 of the rigid support 220 is such that when the two elements are fixed one on the other, the jaws of a card edge connector are able to enter. contact on the one hand with the electrical connection means 214, and on the other hand with the opposite face of the rigid support 220.

L'étendue de la protection est déterminée par les revendications.The extent of protection is determined by the claims.

Claims (11)

Dispositif (100, 200) comprenant une source surfacique de lumière (110, 210) pour un véhicule automobile, la source comprenant un moyen de connexion électrique (114, 214), caractérisé en ce que le dispositif comprend en outre un support rigide (120, 220) sur lequel ledit moyen de connexion électrique est fixé, le support (120, 220) étant apte à coopérer avec un connecteur bord de carte afin de connecter ce dernier électriquement à ladite source surfacique.Device (100, 200) comprising a surface light source (110, 210) for a motor vehicle, the source comprising an electrical connection means (114, 214), characterized in that the device further comprises a rigid support (120 220) on which said electrical connection means is fixed, the support (120, 220) being adapted to cooperate with a card edge connector in order to connect the latter electrically to said surface source. Dispositif selon la revendication 1, caractérisé en ce que le support rigide à une géométrie conforme à celle de la source surfacique.Device according to claim 1, characterized in that the rigid support has a geometry consistent with that of the surface source. Dispositif selon une des revendications 1 ou 2, caractérisé en ce que la source surfacique est fixée sur le support rigide.Device according to one of claims 1 or 2, characterized in that the surface source is fixed on the rigid support. Dispositif selon une des revendications 1 à 3, caractérisé en ce que le moyen de connexion se trouve à une extrémité de la source surfacique.Device according to one of claims 1 to 3, characterized in that the connecting means is at one end of the surface source. Dispositif selon une des revendications 1 à 4, caractérisé en ce que le moyen de connexion de la source surfacique est fixé en proximité d'un bord du support rigide, de façon à pouvoir établir une connexion électrique directe avec un connecteur bord de carte.Device according to one of claims 1 to 4, characterized in that the connection means of the surface source is fixed in proximity to an edge of the rigid support, so as to establish a direct electrical connection with a card edge connector. Dispositif selon une des revendications 1 à 4, caractérisé en ce que le support rigide comprend une piste électriquement conductrice destinée à relier électriquement le moyen de connexion de la source surfacique à un connecteur bord de carte.Device according to one of claims 1 to 4, characterized in that the rigid support comprises an electrically conductive track for electrically connecting the connection means of the surface source to a card edge connector. Dispositif selon une des revendications 1 à 6, caractérisé en ce que la source surfacique de lumière est supportée au moins en partie par un support flexible.Device according to one of claims 1 to 6, characterized in that the surface light source is supported at least in part by a flexible support. Dispositif selon la revendication 7, caractérisé en ce que le support flexible est un circuit imprimé flexible.Device according to claim 7, characterized in that the flexible support is a flexible printed circuit. Dispositif selon unes des revendications 7 ou 8, caractérisé en ce que la source surfacique est fixée sur ledit support flexible.Device according to one of claims 7 or 8, characterized in that the surface source is fixed on said flexible support. Dispositif selon une des revendications 7 à 9, caractérisé en ce que la source surfacique est fixée sur le support rigide moyennant son support flexible.Device according to one of claims 7 to 9, characterized in that the surface source is fixed on the rigid support by means of its flexible support. Dispositif selon une des revendications 1 à 10, caractérisé en ce que la source surfacique de lumière est une diode électroluminescente organique, OLED.Device according to one of claims 1 to 10, characterized in that the surface light source is an organic light-emitting diode, OLED.
EP18187039.5A 2017-08-31 2018-08-02 Surface light source device for card edge connector Withdrawn EP3450832A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1758032A FR3070474B1 (en) 2017-08-31 2017-08-31 SURFACIC LIGHT SOURCE DEVICE FOR BOARD EDGE CONNECTOR

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JP3890782B2 (en) * 1998-10-23 2007-03-07 カシオ計算機株式会社 Display device
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FR3025866A1 (en) * 2014-09-15 2016-03-18 Valeo Vision LIGHT SOURCE SUPPORT WITH INTEGRATED CONNECTOR
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FR3044833A1 (en) * 2015-12-07 2017-06-09 Valeo Vision CONNECTION MODULE FOR MOTOR VEHICLE

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KR20190024838A (en) 2019-03-08
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FR3070474A1 (en) 2019-03-01

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