EP2157369A1 - Support plate for LED electrical circuit - Google Patents

Support plate for LED electrical circuit Download PDF

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Publication number
EP2157369A1
EP2157369A1 EP09167902A EP09167902A EP2157369A1 EP 2157369 A1 EP2157369 A1 EP 2157369A1 EP 09167902 A EP09167902 A EP 09167902A EP 09167902 A EP09167902 A EP 09167902A EP 2157369 A1 EP2157369 A1 EP 2157369A1
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EP
European Patent Office
Prior art keywords
plate
support plate
circuit
light
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP09167902A
Other languages
German (de)
French (fr)
Inventor
Patrice Renaudot
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Noegh
Original Assignee
Noegh
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Filing date
Publication date
Application filed by Noegh filed Critical Noegh
Publication of EP2157369A1 publication Critical patent/EP2157369A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • 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
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • F21V27/02—Cable inlets
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/37—U-shaped
    • 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]

Definitions

  • the present invention relates to a light plate comprising at least one LED (Light Emitting Diode) mounted on at least one power supply circuit connected to power supply means.
  • LED Light Emitting Diode
  • the LEDs are connected to a power supply circuit generally consisting of a printed circuit.
  • Such a printed circuit is made from a thin epoxy resin plate lined with a thin copper layer on which the desired electrical circuit according to the arrangement of the diodes is photographically transferred.
  • the excess copper is then dissolved using iron perchloride or a mixture of copper chloride, hydrochloric acid and hydrogen peroxide, typically.
  • the remaining copper conductor strips thus form the feed circuit.
  • the realization of a large printed circuit measured according to a given scheme can be expensive compared to the application that is made or even unaffordable. Indeed, in common electronic applications, the goal is usually to bring together the maximum of components on a circuit board as small as possible. A large light panel with spaced apart diodes prevents this miniaturization and the use of a printed circuit is no longer wise.
  • the printed circuit boards are relatively thin, they nevertheless have a certain thickness which makes it difficult to produce light panels integrating as discreetly as possible in the object that is to be decorated.
  • a printed circuit board is generally flat and is impractical to use when it is desired to make an object having curved portions.
  • the present invention aims at overcoming these problems and relates, for this purpose, to a light plate comprising at least one light-emitting diode mounted on a power supply circuit connected to power supply means, characterized in that the diode and the light circuit supply are mounted on a support plate comprises at least one face in which has been formed at least one groove defining the path of an electrical circuit diode supply and designed to form a housing for said electrical circuit.
  • the support plate may have any imaginable shape, such as being flat, curved, etc., the electrical circuit being disposed within the groove.
  • electrical circuit generally means a circuit adapting to the shape of the groove for the supply and control of the diodes.
  • Such circuits are made in particular from one or more metal strips (single or multilayer, rigid or flexible) or a flexible strip covered with one or more metal layers, one or more wire conductors, or a conductive ink which would be applied in the groove or a conductive material projected in the groove so as to form the equivalent of a printed circuit.
  • it may be a flexible film on which the power circuit is printed. We can speak of circuit board when there are several tracks.
  • the groove is formed in the thickness of the plate, the electrical circuit and the LEDs do not constitute an additional layer increasing the thickness of the assembly.
  • the thickness of the support plate can therefore be reduced to substantially the thickness of the diodes. This allows the realization of particularly thin support plates up to a thickness of only a few millimeters.
  • the groove is made by machining.
  • the support plate has on the path at least one housing formed in the thickness of the plate and corresponding to the position of a diode on the circuit so as to allow its introduction into said housing.
  • the diodes of the circuit are housed in the support plate, which allows to further reduce the thickness.
  • the housing of the diode has a through hole for allowing the passage of light emitted by the diode through the support plate.
  • a through hole for allowing the passage of light emitted by the diode through the support plate.
  • the groove is closed with the aid of a resin.
  • the resin will be cast in the groove until it is flush with its rim.
  • the presence of a resin closing the groove improve the tightness of the electrical circuit and allow the use of the support plate in a very humid environment.
  • the resin may be translucent or not.
  • the present invention also relates to a light plate comprising at least one light-emitting diode mounted on a power supply circuit connected to power supply means, characterized in that the diode and the power supply circuit are mounted on a support plate according to the invention.
  • the electrical circuit supplying the diodes is made from at least one metal strip, preferably a copper strip.
  • the translucent plate covering the support plate can also help to ensure a sealing function to use the light plate in a humid environment (bathroom, kitchen, for example).
  • the support plate comprises a plating on a lighting surface of the diodes.
  • the support plate is covered by a counter-plate ensuring the closure of the groove.
  • the backplate can provide a sealing function. In the case where the groove is closed with a resin, the thickness of the backplate can be reduced accordingly.
  • the light plate comprises a peripheral seal ensuring a seal between at least the support plate and the backplate.
  • a light plate 1 according to the invention as represented on the figure 1 and in exploded view on the figure 2 , includes a support plate 2 to the interior of which is arranged a diode supply circuit 3, said supply circuit 3 being powered by means of electrical wires 5 connected to at least one copper strip forming a track constituting the supply circuit 3 diodes 4.
  • SMD type diodes surface-mounted component having a more compact size will be chosen.
  • the light plate 1 also comprises a surface veneer 7 of the support plate 2, a counterplate 6 and a translucent plate 8 of the facade.
  • the veneer 7 and the support plate 2 are surrounded by a peripheral seal 40.
  • the support plate comprises a first surface 22 having a peripheral rim 21, and in which is formed a groove 23 defining the electrical path of the electric circuit 3.
  • the groove 23 extending between two orifices 24 formed in the flange 21 and intended to allow the passage of the electrical wires 5.
  • Orifices 25 each for receiving a diode 4 are formed in the thickness of the support plate 2 along the groove 23.
  • Each orifice 25 opens at a front surface 9 of the support plate 2 located opposite the surface 22.
  • the orifice 25 can lead directly to the level of the facade surface 9 ( figure 3 and 6 ) or have an inner shoulder ( figure 5 ) able to serve as a support for the diode 4, a reduced-sized conduit opening at the level of the facade 9.
  • the first surface 22 of the support plate 2 in which is housed the supply circuit 3 is closed by the counter plate 6 having a complementary shape.
  • the front surface 9 of the support plate 2 is in turn covered with a plate 7 having orifices 71 located at each orifice 25 housing a diode 4.
  • the plate 7 may be a decorative plate, of wood, for example, of more or less fine thickness, or made of a more or less translucent material, diffusing more or less light, depending on the desired aesthetic effects.
  • the plate 7 is covered with a translucent plate 8 protection on the front.
  • the translucent plate 8 may, for example, be a mirror plate, a glass plate, be screen printed, have decorative patterns, etc.
  • the support plate 2 is preferably surrounded by a peripheral seal 40 intended to ensure its sealing with the counterplate 6 and the translucent plate 8.
  • the light plate 1 can be used in a humid environment of the bathroom, kitchen type.
  • a light plate 100 differs from the light plate 1 mainly in that it comprises a plate against 106 embedded in the support plate 2 and is surrounded by a peripheral seal 140 also embedded in the support plate 2.
  • the support plate 2 is also covered with the plate 7.
  • the plate 7 is optional and is intended to allow a particular external rendering.
  • the power source of the light plates 1, 100 will preferably be a low voltage electrical source (less than 50 volts).
  • the figures 10 and 11 show a third embodiment of a light plate according to the invention.
  • a light plate 200 differs from the plate 1 only in that the groove 23 houses an electrical circuit 203 on which are mounted diodes 204 multicolored.
  • the electrical circuit 203 is powered by a control block 205 having appropriate control inputs to control the different colors of the diodes 204.
  • This control box is housed in an orifice 224 of the support plate 2.
  • the support plate 2 is flat, its conformation is not limited and it is possible to envisage curved, cylindrical, spherical support plates, etc.
  • the number of LEDs 4 used and the number of grooves 23 is not limited.
  • the number of LEDs used can range from a single LED to several thousand, arranged according to circuits controllable independently of each other.
  • the copper track used to constitute the electric circuit 3 can be made on a rigid or flexible support.
  • the supply circuit may also be a multilayer printed circuit.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

The plate (1) has a LED (4) mounted on a power supply circuit (3) connected to an electric wire (5). The LED and the circuit are mounted on a support plate (2) having a primary face (22) in which a groove (23) is formed. The groove defines a path of the circuit, and is designed for constituting housing for the circuit. The housing includes an orifice (25) for passage of light emitted by the LED through the support plate, where the groove is sealed with a resin and the circuit is formed from copper strip. A translucent plate (8) covers the support plate on lighting sides of the LED.

Description

La présente invention se rapporte à une plaque lumineuse comprenant au moins une diode électroluminescente (DEL / Light Emitting Diode (LED)) montée sur au moins un circuit d'alimentation relié à des moyens d'alimentation électrique.The present invention relates to a light plate comprising at least one LED (Light Emitting Diode) mounted on at least one power supply circuit connected to power supply means.

L'utilisation de LED dans des dispositifs d'éclairage s'est fortement répandue ces dernières années en raison de leur faible consommation électrique et de leur excellente puissance lumineuse comparativement à leur taille.The use of LEDs in lighting devices has become widespread in recent years due to their low power consumption and excellent light output compared to their size.

De nombreux artistes et concepteurs d'objets de décoration en font de plus en plus usage également.Many artists and designers of decorative objects are making more and more use.

Les LED sont reliées à un circuit d'alimentation électrique consistant généralement en un circuit imprimé.The LEDs are connected to a power supply circuit generally consisting of a printed circuit.

Un tel circuit imprimé est réalisé à partir d'un fine plaque en résine époxy doublée d'une fine couche de cuivre sur laquelle le circuit électrique souhaité en fonction de la disposition des diodes est photographiquement transféré. L'excédent de cuivre est alors dissous à l'aide de perchlorure de fer ou un mélange de chlorure de cuivre, d'acide chlorhydrique et d'eau oxygénée, typiquement.Such a printed circuit is made from a thin epoxy resin plate lined with a thin copper layer on which the desired electrical circuit according to the arrangement of the diodes is photographically transferred. The excess copper is then dissolved using iron perchloride or a mixture of copper chloride, hydrochloric acid and hydrogen peroxide, typically.

Les bandes conductrices de cuivre restantes forment donc le circuit d'alimentation.The remaining copper conductor strips thus form the feed circuit.

Après perçage de trous de passage, un tel circuit permet d'implanter par soudure les diodes à leur emplacement.After drilling through holes, such a circuit makes it possible to implant by welding the diodes at their location.

Dans une application décorative visant à intégrer des LED sous la forme de panneaux lumineux dans des objets et meubles, cette technique présentent de nombreuses limites.In a decorative application to integrate LEDs in the form of light panels into objects and furniture, this technique have many limitations.

Tout d'abord, la réalisation d'un circuit imprimé de grande taille mesuré en fonction d'un schéma donné peut s'avérer coûteuse par rapport à l'application qui en est faite, voire inabordable. En effet, dans des applications électroniques courantes, le but est généralement de réunir le maximum de composants sur un circuit imprimé le plus petit possible. Un panneau lumineux de grande taille présentant des diodes espacées empêche cette miniaturisation et le recours à un circuit imprimé n'est donc plus judicieux.First, the realization of a large printed circuit measured according to a given scheme can be expensive compared to the application that is made or even unaffordable. Indeed, in common electronic applications, the goal is usually to bring together the maximum of components on a circuit board as small as possible. A large light panel with spaced apart diodes prevents this miniaturization and the use of a printed circuit is no longer wise.

On notera également, d'une part, qu'il résulte une perte de cuivre importante, ce qui est économiquement impactant, et d'autre part, que la réalisation d'un circuit imprimé utilise des produits polluants.It will also be noted, on the one hand, that a significant loss of copper results, which is economically impacting, and on the other hand, that the production of a printed circuit uses pollutants.

L'alternative est donc d'utiliser des plaques de circuits imprimés standardisées et que l'artiste ou concepteur peut modifier légèrement selon ses besoins pour réaliser le circuit voulu.The alternative is to use standardized printed circuit boards and that the artist or designer can modify slightly according to his needs to achieve the desired circuit.

Par ailleurs, bien que les plaques de circuits imprimés soient relativement minces, elles n'en présentent pas moins une épaisseur certaine qui rend difficile la réalisation de panneaux lumineux s'intégrant le plus discrètement possible dans l'objet que l'on souhaite décorer.Moreover, although the printed circuit boards are relatively thin, they nevertheless have a certain thickness which makes it difficult to produce light panels integrating as discreetly as possible in the object that is to be decorated.

On notera également qu'une plaque de circuit imprimé est généralement plane et est peu pratique d'utilisation lorsque l'on souhaite réaliser un objet présentant des portions courbes.Note also that a printed circuit board is generally flat and is impractical to use when it is desired to make an object having curved portions.

II existe donc un besoin pour une technique simple permettant de répondre aux problèmes soulevés.There is therefore a need for a simple technique to respond to the problems raised.

La présente invention vise à pallier ces problèmes et se rapporte pour ce faire à une plaque lumineuse comprenant au moins une diode électroluminescente montée sur un circuit d'alimentation reliée à des moyens d'alimentation électrique, caractérisée en ce que la diode et le circuit d'alimentation sont montés sur une plaque support comporte au moins une face dans laquelle a été réalisé au moins un sillon définissant le chemin d'un circuit électrique d'alimentation des diodes et conçu pour constituer un logement pour ledit circuit électrique.The present invention aims at overcoming these problems and relates, for this purpose, to a light plate comprising at least one light-emitting diode mounted on a power supply circuit connected to power supply means, characterized in that the diode and the light circuit supply are mounted on a support plate comprises at least one face in which has been formed at least one groove defining the path of an electrical circuit diode supply and designed to form a housing for said electrical circuit.

Ainsi, en prévoyant une plaque support pour le circuit électrique d'alimentation des LED, seule la quantité nécessaire de métal est utilisée. Par ailleurs, la plaque support peut présenter toute forme imaginable, telle qu'être plane, courbe, etc, le circuit électrique étant disposé à l'intérieur du sillon.Thus, by providing a support plate for the LED power supply circuit, only the necessary amount of metal is used. Furthermore, the support plate may have any imaginable shape, such as being flat, curved, etc., the electrical circuit being disposed within the groove.

Par circuit électrique, on entend de manière générale un circuit s'adaptant à la forme du sillon permettant l'alimentation et le contrôle des diodes. De tels circuits sont réalisés notamment à partir d'une ou plusieurs bandes métalliques (simples ou multicouches, rigide ou souple) ou d'une bande souple recouverte d'une ou plusieurs couches métalliques, une ou plusieurs conducteurs filaires, ou encore une encre conductrice qui serait appliquée dans le sillon voire un matériau conducteur projeté dans le sillon de manière à former l'équivalent d'un circuit imprimé.By electrical circuit, generally means a circuit adapting to the shape of the groove for the supply and control of the diodes. Such circuits are made in particular from one or more metal strips (single or multilayer, rigid or flexible) or a flexible strip covered with one or more metal layers, one or more wire conductors, or a conductive ink which would be applied in the groove or a conductive material projected in the groove so as to form the equivalent of a printed circuit.

Plus particulièrement, il pourra s'agir d'un film flexible sur lequel est imprimé le circuit d'alimentation. On peut parler de circuit imprimé lorsqu'il y a plusieurs pistes.More particularly, it may be a flexible film on which the power circuit is printed. We can speak of circuit board when there are several tracks.

On notera également que le sillon étant pratiqué dans l'épaisseur de la plaque, le circuit électrique et les LED ne constituent pas une couche supplémentaire augmentant l'épaisseur de l'ensemble. L'épaisseur de la plaque support peut donc être réduite à sensiblement l'épaisseur des diodes. Cela permet la réalisation de plaques support particulièrement fine pouvant atteindre une épaisseur de quelques millimètres seulement.It should also be noted that since the groove is formed in the thickness of the plate, the electrical circuit and the LEDs do not constitute an additional layer increasing the thickness of the assembly. The thickness of the support plate can therefore be reduced to substantially the thickness of the diodes. This allows the realization of particularly thin support plates up to a thickness of only a few millimeters.

Avantageusement, le sillon est réalisé par usinage. Bien évidemment, on pourrait également réaliser les plaques support par moulage, notamment dans le cas où l'on souhaite obtenir des plaques présentant des zones courbes.Advantageously, the groove is made by machining. Of course, it is also possible to make the support plates by molding, especially in the case where it is desired to obtain plates having curved areas.

Avantageusement encore, la plaque support présente sur le chemin au moins un logement ménagé dans l'épaisseur de la plaque et correspondant à la position d'une diode sur le circuit de manière à permettre son introduction dans ledit logement. Ainsi, les diodes du circuit sont logées dans la plaque support, ce qui permet d'en réduire encore l'épaisseur.Advantageously, the support plate has on the path at least one housing formed in the thickness of the plate and corresponding to the position of a diode on the circuit so as to allow its introduction into said housing. Thus, the diodes of the circuit are housed in the support plate, which allows to further reduce the thickness.

De manière préférentielle, le logement de la diode présente un orifice traversant destiné à permettre le passage de la lumière émise par la diode à travers la plaque support. Bien évidemment, selon le matériau de la plaque et sa capacité de diffusion de la lumière, on pourra se dispenser de cette ouverture en fonction de l'effet lumineux recherché.Preferably, the housing of the diode has a through hole for allowing the passage of light emitted by the diode through the support plate. Of course, depending on the material of the plate and its light scattering capacity, it will be possible to dispense with this opening depending on the desired light effect.

Avantageusement, le sillon est fermé à l'aide d'une résine. Préférentiellement la résine sera coulée dans le sillon jusqu'à affleurer son rebord. La présence d'une résine fermant le sillon améliorer l'étanchéité du circuit électrique et permettre l'utilisation de la plaque-support en milieu très humide. La résine pourra être translucide ou non.Advantageously, the groove is closed with the aid of a resin. Preferably the resin will be cast in the groove until it is flush with its rim. The presence of a resin closing the groove improve the tightness of the electrical circuit and allow the use of the support plate in a very humid environment. The resin may be translucent or not.

La présente invention se rapporte également à une plaque lumineuse comprenant au moins une diode électroluminescente montée sur un circuit d'alimentation reliée à des moyens d'alimentation électrique, caractérisée en ce que la diode et le circuit d'alimentation sont montés sur une plaque support selon l'invention.The present invention also relates to a light plate comprising at least one light-emitting diode mounted on a power supply circuit connected to power supply means, characterized in that the diode and the power supply circuit are mounted on a support plate according to the invention.

Avantageusement, le circuit électrique alimentant les diodes est réalisé à partir d'au moins une bande métallique, de préférence une bande de cuivre.Advantageously, the electrical circuit supplying the diodes is made from at least one metal strip, preferably a copper strip.

De manière préférentielle, elle comprend une plaque translucide recouvrant la plaque support sur un côté d'éclairage des diodes. La plaque translucide recouvrant la plaque support peut également permettre d'assurer une fonction d'étanchéité permettant d'utiliser la plaque lumineuse en milieu humide (salle de bain, cuisine, par exemple).Preferably, it comprises a translucent plate covering the support plate on a lighting side of the diodes. The translucent plate covering the support plate can also help to ensure a sealing function to use the light plate in a humid environment (bathroom, kitchen, for example).

Préférentiellement, la plaque support comprend un placage sur une surface d'éclairage des diodes.Preferably, the support plate comprises a plating on a lighting surface of the diodes.

Préférentiellement encore, la plaque support est recouverte par une contre-plaque assurant la fermeture du sillon. De même que la plaque translucide, la contre-plaque peut assurer une fonction d'étanchéité. Dans le cas ou le sillon est fermé avec une résine, l'épaisseur de la contre-plaque pourra être diminuée d'autant.Preferentially, the support plate is covered by a counter-plate ensuring the closure of the groove. Like the translucent plate, the backplate can provide a sealing function. In the case where the groove is closed with a resin, the thickness of the backplate can be reduced accordingly.

Avantageusement, la plaque lumineuse comprend un joint périphérique assurant une étanchéité entre au moins la plaque support et la contre-plaque.Advantageously, the light plate comprises a peripheral seal ensuring a seal between at least the support plate and the backplate.

La présente invention sera mieux comprise à l'aide de la description détaillée qui suit, en regard du dessin annexé dans lequel :

  • La figure 1 est une représentation schématique en perspective d'un premier mode de réalisation d'une plaque lumineuse selon l'invention.
  • La figure 2 est une vue éclatée de la plaque lumineuse de la figure 1.
  • La figure 3 est une vue d'une plaque support équipant la plaque lumineuse de la figure 1.
  • La figure 4 est une vue de la plaque support de la figure 3 équipée d'un plaquage de façade.
  • Les figures 5 et 6 sont des représentation en coupe de la plaque lumineuse de la figure 1 comprenant respectivement une plaque support sans et avec placage de surface.
  • La figure 7 est une représentation schématique en perspective d'un deuxième mode de réalisation d'une plaque lumineuse selon l'invention.
  • La figure 8 est une vue éclatée de la plaque lumineuse de la figure 7.
  • La figure 9 est une représentation schématique en coupe de la plaque lumineuse de la figure 7.
  • Les figures 10 et 11 sont des vues d'un troisième mode de réalisation d'une plaque lumineuse selon l'invention comprenant un circuit de diodes multicolores.
The present invention will be better understood with the aid of the detailed description which follows, with reference to the appended drawing in which:
  • The figure 1 is a schematic representation in perspective of a first embodiment of a light plate according to the invention.
  • The figure 2 is an exploded view of the luminous plate of the figure 1 .
  • The figure 3 is a view of a support plate equipping the luminous plate of the figure 1 .
  • The figure 4 is a view of the support plate of the figure 3 equipped with a facade plating.
  • The Figures 5 and 6 are sectional representations of the luminous plate of the figure 1 respectively comprising a support plate without and with surface plating.
  • The figure 7 is a schematic representation in perspective of a second embodiment of a light plate according to the invention.
  • The figure 8 is an exploded view of the luminous plate of the figure 7 .
  • The figure 9 is a schematic representation in section of the luminous plate of the figure 7 .
  • The figures 10 and 11 are views of a third embodiment of a light plate according to the invention comprising a multicolored diode circuit.

Un plaque lumineuse 1 selon l'invention, telle que représentée sur la figure 1 et en vue éclatée sur la figure 2, comprend une plaque support 2 à l'intérieur de laquelle est disposé un circuit d'alimentation 3 de diodes 4, ledit circuit d'alimentation 3 étant alimenté par le biais de fils électriques 5 connectés à au moins une bande de cuivre formant une piste constitutive du circuit d'alimentation 3 des diodes 4. On choisira préférentiellement des diodes de types CMS (composant monté en surface), possédant une dimension plus compacte.A light plate 1 according to the invention, as represented on the figure 1 and in exploded view on the figure 2 , includes a support plate 2 to the interior of which is arranged a diode supply circuit 3, said supply circuit 3 being powered by means of electrical wires 5 connected to at least one copper strip forming a track constituting the supply circuit 3 diodes 4. Preferably, SMD type diodes (surface-mounted component) having a more compact size will be chosen.

La plaque lumineuse 1 comprend également un placage 7 de surface de la plaque support 2, une contre-plaque 6 ainsi qu'une plaque translucide 8 de façade.The light plate 1 also comprises a surface veneer 7 of the support plate 2, a counterplate 6 and a translucent plate 8 of the facade.

Le placage 7 et la plaque support 2 sont entourées d'un joint périphérique 40.The veneer 7 and the support plate 2 are surrounded by a peripheral seal 40.

Comme visible sur la figure 2, la plaque support comporte une première surface 22 présentant un rebord périphérique 21, et dans laquelle est ménagé un sillon 23 définissant le chemin électrique du circuit électrique 3.As visible on the figure 2 , the support plate comprises a first surface 22 having a peripheral rim 21, and in which is formed a groove 23 defining the electrical path of the electric circuit 3.

Le sillon 23 s'étendant entre deux orifices 24 ménagés dans le rebord 21 et destinés à permettre le passage des fils électriques 5.The groove 23 extending between two orifices 24 formed in the flange 21 and intended to allow the passage of the electrical wires 5.

Des orifices 25 destinés à recevoir chacun une diode 4 sont pratiqués dans l'épaisseur de la plaque support 2 le long du sillon 23.Orifices 25 each for receiving a diode 4 are formed in the thickness of the support plate 2 along the groove 23.

Chaque orifice 25 débouche au niveau d'une surface de façade 9 de la plaque support 2 située à l'opposé de la surface 22.Each orifice 25 opens at a front surface 9 of the support plate 2 located opposite the surface 22.

Selon l'épaisseur de la plaque support 2, l'orifice 25 pourra déboucher directement au niveau de la surface de façade 9 (figure 3 et 6) ou présenter un épaulement intérieur (figure 5) apte à servir d'appui à la diode 4, un conduit de taille réduite débouchant au niveau de la façade 9.Depending on the thickness of the support plate 2, the orifice 25 can lead directly to the level of the facade surface 9 ( figure 3 and 6 ) or have an inner shoulder ( figure 5 ) able to serve as a support for the diode 4, a reduced-sized conduit opening at the level of the facade 9.

La première surface 22 de la plaque support 2 dans laquelle est logé le circuit d'alimentation 3 est fermée par la contre plaque 6 présentant une forme complémentaire.The first surface 22 of the support plate 2 in which is housed the supply circuit 3 is closed by the counter plate 6 having a complementary shape.

La surface de façade 9 de la plaque support 2 est quant à elle recouverte d'un plaque 7 présentant des orifices 71 situés au niveau de chaque orifice 25 logeant une diode 4.The front surface 9 of the support plate 2 is in turn covered with a plate 7 having orifices 71 located at each orifice 25 housing a diode 4.

La plaque 7 pourra être une plaque décorative, en bois, par exemple, d'épaisseur plus ou moins fine, ou réalisée dans un matériau plus ou moins translucide, diffusant plus ou moins la lumière, selon les effets esthétiques recherchés.The plate 7 may be a decorative plate, of wood, for example, of more or less fine thickness, or made of a more or less translucent material, diffusing more or less light, depending on the desired aesthetic effects.

La plaque 7 est recouverte d'une plaque translucide 8 de protection en façade.The plate 7 is covered with a translucent plate 8 protection on the front.

La plaque translucide 8 pourra, par exemple, être une plaque miroir, une plaque de verre, être sérigraphiée, présenter des motifs décoratifs, etc.The translucent plate 8 may, for example, be a mirror plate, a glass plate, be screen printed, have decorative patterns, etc.

Des figures 5 et 6, on notera que la plaque support 2 est entourée préférentiellement d'un joint périphérique 40 visant à assurer son étanchéité avec la contre-plaque 6 et la plaque translucide 8.of the Figures 5 and 6 it will be noted that the support plate 2 is preferably surrounded by a peripheral seal 40 intended to ensure its sealing with the counterplate 6 and the translucent plate 8.

Ainsi, la plaque lumineuse 1 peut être utilisée en milieu humide du type salle de bains, cuisine.Thus, the light plate 1 can be used in a humid environment of the bathroom, kitchen type.

Les figures 7 à 9 présentent un deuxième mode de réalisation de l'invention.The Figures 7 to 9 show a second embodiment of the invention.

Comme représenté sur lesdites figures une plaque lumineuse 100 diffère de la plaque lumineuse 1 principalement par le fait qu'elle comporte une contre plaque 106 venant s'encastrer dans la plaque support 2 et est entouré par un joint périphérique 140 également encastré dans la plaque support 2.As shown in said figures a light plate 100 differs from the light plate 1 mainly in that it comprises a plate against 106 embedded in the support plate 2 and is surrounded by a peripheral seal 140 also embedded in the support plate 2.

La plaque support 2 est également recouverte de la plaque 7. Bien évidemment, comme précédemment, la plaque 7 est optionnelle et vise à permettre un rendu extérieur particulier.The support plate 2 is also covered with the plate 7. Of course, as previously, the plate 7 is optional and is intended to allow a particular external rendering.

La source d'alimentation des plaques lumineuses 1, 100 sera préférentiellement une source électrique basse tension (inférieure à 50 volts).The power source of the light plates 1, 100 will preferably be a low voltage electrical source (less than 50 volts).

Les figures 10 et 11 présentent un troisième mode de réalisation d'une plaque lumineuse selon l'invention.The figures 10 and 11 show a third embodiment of a light plate according to the invention.

Une plaque lumineuse 200 diffère de la plaque 1 uniquement par le fait que le sillon 23 abrite un circuit électrique 203 sur lequel sont montées des diodes 204 multicolores.A light plate 200 differs from the plate 1 only in that the groove 23 houses an electrical circuit 203 on which are mounted diodes 204 multicolored.

Le circuit électriques 203 est alimenté par un bloc contrôle 205 possédant des entrées de commande appropriées pour commander les différentes couleurs des diodes 204.The electrical circuit 203 is powered by a control block 205 having appropriate control inputs to control the different colors of the diodes 204.

Ce boîtier de contrôle est logé dans un orifice 224 de la plaque support 2.This control box is housed in an orifice 224 of the support plate 2.

Bien que l'invention ait été décrite avec un exemple particulier de réalisation, il est bien évident qu'elle n'y est nullement limitée et qu'elle comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci entrent dans le cadre de l'invention.Although the invention has been described with a particular embodiment, it is obvious that it is in no way limited and that it includes all the technical equivalents of the means described and their combinations if they enter into the scope of the invention.

Notamment, bien que la plaque support 2 soit plane, sa conformation n'est pas limitée et il est possible d'envisager des plaques support courbes, cylindriques, sphériques, etc...In particular, although the support plate 2 is flat, its conformation is not limited and it is possible to envisage curved, cylindrical, spherical support plates, etc.

Le nombre de LED 4 utilisées ainsi que le nombre de sillon 23 n'est pas limité. Le nombre de LED utilisées peut aller d'une unique LED à plusieurs milliers, arrangées selon des circuits commandables indépendamment les uns des autres.The number of LEDs 4 used and the number of grooves 23 is not limited. The number of LEDs used can range from a single LED to several thousand, arranged according to circuits controllable independently of each other.

La piste de cuivre utilisée pour constituer le circuit électrique 3 peut être réalisée sur un support rigide ou souple. Le circuit d'alimentation peut également être un circuit imprimé multicouche.The copper track used to constitute the electric circuit 3 can be made on a rigid or flexible support. The supply circuit may also be a multilayer printed circuit.

Claims (10)

Plaque lumineuse (1, 100) comprenant au moins une diode (4) électroluminescente montée sur un circuit d'alimentation (3) reliée à des moyens d'alimentation électrique (5), caractérisée en ce que la diode et le circuit d'alimentation sont montés sur une plaque support (2) comporte au moins une face (22) dans laquelle a été réalisé au moins un sillon (23) définissant le chemin d'un circuit électrique (3) d'alimentation des diodes et conçu pour constituer un logement pour ledit circuit électrique.Light plate (1, 100) comprising at least one electroluminescent diode (4) mounted on a supply circuit (3) connected to power supply means (5), characterized in that the diode and the power supply circuit are mounted on a support plate (2) comprises at least one face (22) in which at least one groove (23) has been formed defining the path of an electrical circuit (3) for supplying the diodes and designed to constitute a housing for said electrical circuit. Plaque lumineuse (1, 100) selon la revendication 1, caractérisée en ce que le sillon (23) est réalisé par usinage.Light plate (1, 100) according to claim 1, characterized in that the groove (23) is produced by machining. Plaque lumineuse (1, 100) selon l'une quelconque des revendications 1 ou 2, caractérisée en ce qu'elle présente sur le chemin (23) au moins un logement (25) ménagé dans l'épaisseur de la plaque et correspondant à la position d'une diode (4) sur le circuit de manière à permettre son introduction dans ledit logement.Light plate (1, 100) according to any one of claims 1 or 2, characterized in that it has on the path (23) at least one housing (25) formed in the thickness of the plate and corresponding to the position of a diode (4) on the circuit so as to allow its insertion into said housing. Plaque lumineuse (1, 100) selon la revendication 3, caractérisé en ce que le logement (25) de la diode (4) présente un orifice traversant destiné à permettre le passage de la lumière émise par la diode à travers la plaque support.Light plate (1, 100) according to claim 3, characterized in that the housing (25) of the diode (4) has a through hole for allowing the passage of light emitted by the diode through the support plate. Plaque lumineuse (1, 100) selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le sillon (23) est fermé à l'aide d'une résine.Light plate (1, 100) according to any one of claims 1 to 4, characterized in that the groove (23) is closed with a resin. Plaque lumineuse (1, 100) selon l'lune quelconque des revendications 1 à 5, caractérisée en ce que le circuit électrique alimentant (3) les diodes (4) est réalisé à partir d'au moins une bande métallique, de préférence une bande de cuivre.Light plate (1, 100) according to any of the claims 1 to 5, characterized in that the electrical circuit supplying (3) the diodes (4) is made from at least one metal strip, preferably a strip of copper. Plaque lumineuse (1) selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'elle comprend une plaque translucide (8) recouvrant la plaque support (2) sur un côté d'éclairage des diodes (4).Light plate (1) according to any one of claims 1 to 6, characterized in that it comprises a translucent plate (8) covering the support plate (2) on one lighting side of the diodes (4). Plaque lumineuse (1, 100) selon l'une quelconque des revendications 1 à 7, caractérisée en ce la plaque support (2) comprend un placage (7) sur une surface d'éclairage des diodes (4).Light plate (1, 100) according to any one of claims 1 to 7, characterized in that the support plate (2) comprises a plating (7) on a lighting surface of the diodes (4). Plaque lumineuse (1, 100) selon l'une quelconque des revendications 1 à 8, caractérisée en ce que la plaque support (2) est recouverte par une contre-plaque (6, 106) assurant la fermeture du sillon (23).Light plate (1, 100) according to any one of claims 1 to 8, characterized in that the support plate (2) is covered by a counter plate (6, 106) ensuring the closing of the groove (23). Plaque lumineuse (1, 100) selon l'une quelconque des revendications 1 à 9, caractérisée en ce qu'elle comprend un joint (40, 140) périphérique assurant une étanchéité entre au moins la plaque support (2) et la contre-plaque (6, 106).Light plate (1, 100) according to any one of claims 1 to 9, characterized in that it comprises a peripheral seal (40, 140) ensuring a seal between at least the support plate (2) and the counterplate (6, 106).
EP09167902A 2008-08-20 2009-08-14 Support plate for LED electrical circuit Withdrawn EP2157369A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0804652A FR2935217B1 (en) 2008-08-20 2008-08-20 SUPPORT PLATE FOR ELECTRICAL LED CIRCUIT

Publications (1)

Publication Number Publication Date
EP2157369A1 true EP2157369A1 (en) 2010-02-24

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EP09167902A Withdrawn EP2157369A1 (en) 2008-08-20 2009-08-14 Support plate for LED electrical circuit

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FR (1) FR2935217B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2497998A3 (en) * 2011-03-08 2013-04-17 Samsung Electronics Co., Ltd. Light emitting diode (LED) module
FR3058203A1 (en) * 2016-10-27 2018-05-04 Nicolas Chaume LIGHT EMITTING LIGHT EMITTING APPARATUS
WO2020228995A1 (en) * 2019-05-15 2020-11-19 Zumtobel Lighting Gmbh Luminaire with a luminaire component that is accommodated in a protected manner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1457805A (en) * 1974-03-01 1976-12-08 Mullard Ltd Electric circuit modules
GB2032088A (en) * 1978-10-03 1980-04-30 Carville Ltd A display panel
DE3821121A1 (en) * 1988-06-23 1990-02-08 Ullmann Ulo Werk Method of manufacture of contact carriers
EP1081426A2 (en) * 1999-09-02 2001-03-07 Dinnebier Licht GmbH Lighting element comprising a supporting and mounting body, a cover and a light source
US20020141181A1 (en) * 2001-03-29 2002-10-03 Bailey Bendrix L. Lighting system
US20030123253A1 (en) * 2001-05-08 2003-07-03 Krietzman Mark Howard Multi-layered thin flat illuminator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1457805A (en) * 1974-03-01 1976-12-08 Mullard Ltd Electric circuit modules
GB2032088A (en) * 1978-10-03 1980-04-30 Carville Ltd A display panel
DE3821121A1 (en) * 1988-06-23 1990-02-08 Ullmann Ulo Werk Method of manufacture of contact carriers
EP1081426A2 (en) * 1999-09-02 2001-03-07 Dinnebier Licht GmbH Lighting element comprising a supporting and mounting body, a cover and a light source
US20020141181A1 (en) * 2001-03-29 2002-10-03 Bailey Bendrix L. Lighting system
US20030123253A1 (en) * 2001-05-08 2003-07-03 Krietzman Mark Howard Multi-layered thin flat illuminator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2497998A3 (en) * 2011-03-08 2013-04-17 Samsung Electronics Co., Ltd. Light emitting diode (LED) module
US8740408B2 (en) 2011-03-08 2014-06-03 Samsung Electronics Co., Ltd. Light emitting diode (LED) module
FR3058203A1 (en) * 2016-10-27 2018-05-04 Nicolas Chaume LIGHT EMITTING LIGHT EMITTING APPARATUS
WO2020228995A1 (en) * 2019-05-15 2020-11-19 Zumtobel Lighting Gmbh Luminaire with a luminaire component that is accommodated in a protected manner

Also Published As

Publication number Publication date
FR2935217B1 (en) 2010-10-08
FR2935217A1 (en) 2010-02-26

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