WO2023118567A1 - Motor vehicle signalling device - Google Patents

Motor vehicle signalling device Download PDF

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Publication number
WO2023118567A1
WO2023118567A1 PCT/EP2022/087729 EP2022087729W WO2023118567A1 WO 2023118567 A1 WO2023118567 A1 WO 2023118567A1 EP 2022087729 W EP2022087729 W EP 2022087729W WO 2023118567 A1 WO2023118567 A1 WO 2023118567A1
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WO
WIPO (PCT)
Prior art keywords
light source
substrate
light
cavity
electronic circuit
Prior art date
Application number
PCT/EP2022/087729
Other languages
French (fr)
Inventor
Pierre BAHIN
Claire JOBARD
Julien Hemon
Original Assignee
Valeo Vision
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Filing date
Publication date
Application filed by Valeo Vision filed Critical Valeo Vision
Publication of WO2023118567A1 publication Critical patent/WO2023118567A1/en

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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
    • 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
    • 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
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/247—Light guides with a single light source being coupled into the light guide
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/50—Light sources with three-dimensionally disposed light-generating elements on planar substrates or supports, but arranged in different planes or with differing orientation, e.g. on plate-shaped supports with steps on which light-generating elements are mounted
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0274—Optical details, e.g. printed circuits comprising integral optical means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
    • H05K1/183—Components mounted in and supported by recessed areas of the printed circuit board
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10106—Light emitting diode [LED]

Definitions

  • the invention belongs to the field of motor vehicle signaling devices.
  • a signaling device comprising a substrate, on a surface of which are mounted a first and a second light source, and in which at least one optical part is configured to conform the light emitted by the light sources, from so that the first light source contributes to a first signaling function and the second light source contributes to a second light function.
  • This signaling device has several problems.
  • the production time of the light source components is sometimes shorter than the life cycle of the signaling device, which can cause situations in which a light source component used in a first version of the signaling device is no longer available on the market.
  • the signaling device must therefore use another light source component, which may have a height different from that of the initial component.
  • the height of the light source has a strong impact both on the optical performance and on the heat dissipation of the heat produced by the light source in operation. Additionally, an appearance of the signaling device when turned on may be degraded by an unsuitable height of a light source. To do this, the height should be controlled with a tolerance of the order of a tenth of a millimeter.
  • the object of the invention is therefore to solve this problem and to provide a signaling device that is easily adaptable to different components of light sources, so as to deal with changes in availability and differences in regulations depending on the country.
  • the invention proposes a signaling device comprising:
  • a substrate comprising an upper face on which an upper electronic circuit is arranged, and at least one inner layer comprising an inner electronic circuit
  • the substrate comprising on its upper face a cavity having a given depth through which the interior layer appears, at least one first light source being mounted in the cavity on the interior electronic circuit,
  • the first light source having a greater height than the depth of the cavity.
  • the substrate is a plate provided with a thickness, such as a well-known printed circuit board from the state of the art.
  • a thickness such as a well-known printed circuit board from the state of the art.
  • an inner layer is meant a layer of electronic circuit integrated between two thicknesses of material of the substrate, as is the case in laminated multilayer printed circuit boards.
  • “Mounting a component”, in particular a light source component, means the fact of mechanically fixing, in particular by soldering or soldering, a component directly on an electronic circuit, so as to allow its electronic power supply via said circuit electronic.
  • the term “cavity” means a recess in the material of the substrate, which can for example take the form of a trench. It is understood that the cavity has a bottom that is at least partly flat in that it reveals part of the inner layer which is itself flat, in particular part of the inner electronic circuit.
  • the cavity can be obtained by various known methods which are not the subject of the invention, involving in particular milling and/or laser cutting steps. We understand that it makes it possible to reveal part of the inner layer and its electronic circuit, so that components can be mounted there.
  • the luminous device comprises means for holding the support and optical part so that they are fixed relative to each other. These means can take various forms well known to those skilled in the art.
  • the light source Since the light source is mounted on the inner layer, it is clear that the light performance depends on the position of the inner layer.
  • the inner layers of the substrates have standard spacings, from which it is expensive to deviate, which implies a possible positioning error which must be included in the positioning tolerances. This can constitute an obstacle in the case of lighting functions such as dipped beam headlights, main beam headlights, fog lights, for which the expected performance is greater and, consequently, the height positioning tolerances of the light source are weaker.
  • the invention therefore allows, at the cost of a simple adaptation of the substrate according to a known method, to use a light source component of height greater than that of a light source component initially used for a signaling device given, without incurring any modification of the other components or of the structures for maintaining the substrate or of the optics cooperating with the light source.
  • the provision of a cavity compensates for additional height of the light source component, so that optical performance and heat dissipation, as well as the lit appearance, are preserved, while avoiding costly modifications of structural elements ensuring the position of the light source relative to the optical parts, or of the optical part itself.
  • the height of the first light source is greater than the depth of the cavity. In this way, it is possible, without modifying the optical part, to accommodate both light source components of lesser height, by reducing the depth of the cavity, or components of greater height, by increasing the depth of the cavity.
  • At least one second light source is mounted on the substrate.
  • a first light source component having a modified height within a lighting device comprising second unmodified light sources and parts optics and unmodified substrate holding elements.
  • the optical part comprises a light guide configured to shape light rays from the first light source.
  • the optical part comprises a reflector.
  • the optical part comprises an optical element configured to shape light rays from the first light source and a separate optical element configured to shape rays from the second light source.
  • an optical part comprising a single optical element for example, an optical part made from the material, is configured to conform the rays coming from the first and from the second light source.
  • the optical part comprises a collimator configured to conform light rays from the first light source and/or from the second light source. This is for example often the case for luminous devices with light guides intended for the signaling of motor vehicles.
  • the substrate is of the FR4 type.
  • This type of substrate is the most suitable for producing cavities and makes it possible to obtain the desired effects at low cost.
  • the light sources are light-emitting diodes.
  • FIG.l represents a partial view of a signaling device in which a first light source mounted in a cavity cooperates with a first optical part.
  • the [Fig.2] represents a partial view of a signaling device in which a first light source mounted in a cavity cooperates with a first optical part, and in which a second light source cooperates with a second optical part.
  • the [Fig.l] represents a partial view of a luminous signaling device 10 for a motor vehicle, in which a substrate 3 comprises an upper surface comprising an electronic circuit 31 and a cavity in said substrate 3.
  • a first light source 1 mounted in a cavity of substrate 3 cooperates with an optical part 41 provided with an input face 43 configured to be placed at a distance d1 from the first light source 1.
  • a support holds the optical part 41 at a fixed distance from the substrate 3 and therefore from the first light source 1.
  • Said light source is mounted on the interior electronic circuit 32 of the interior layer.
  • the cavity has in the substrate a depth el and a width w.
  • the first light source 1 has a height H1 such that the first light source 1 is located at a distance dl from the entrance face 43 of the optical part 4.
  • the [Fig.2] represents a partial view of a luminous signaling device 10 for a motor vehicle, in which a substrate 3 comprises an upper surface comprising an electronic circuit 31 and a cavity in said substrate 3.
  • a first light source 1 mounted in a cavity of substrate 3 cooperates with an optical part 4 comprising an optical element 41 provided with an input face 43 configured to be placed at a distance d1 from the first light source 1, and an optical element 42 provided with an entry face 44 configured to be disposed at a distance d2 from a second light source 2 of height H2, mounted on the electronic circuit from surface 31 of substrate 3.
  • a support not shown maintains the optical part 4 at a fixed distance from the substrate 3 and therefore from the light sources 1 and 2.
  • the first light source 1 is mounted on the interior electronic circuit 32 of the interior layer.
  • the cavity has in the substrate a depth el and a width w.
  • the first light source 1 has a height H1 such that the first light source 1 is located at a distance dl from the entrance face 43 of the optical part 4L

Abstract

The invention relates to a signalling device (10) having a substrate (3) comprising an upper face on which an upper electronic circuit (31) is arranged, and at least one inner layer having an inner electronic circuit (32), the substrate comprising on its upper face a cavity having a given depth (e) through which the inner layer appears, at least one first light source (1) being mounted in the cavity on the inner electronic circuit, and at least one optical component (4) held fixedly with respect to the substrate (3) and capable of shaping the light emanating from the first light source (1) so as to contribute to a first signalling function, the first light source (1) having a height (H1) that is greater than the depth (e) of the cavity.

Description

Description Description
Titre de l'invention : Dispositif de signalisation de véhicule automobile Title of the invention: Motor vehicle signaling device
[0001] L’invention appartient au domaine des dispositifs de signalisation de véhicule automobile. The invention belongs to the field of motor vehicle signaling devices.
Etat de la technique State of the art
[0002] Il est connu un dispositif de signalisation comprenant un substrat, sur une surface duquel sont montées une première et une deuxième sources lumineuses, et dans lequel au moins une pièce optique est configurée pour conformer de la lumière émise par les sources lumineuses, de sorte que la première source lumineuse contribue à une première fonction de signalisation et la deuxième source lumineuse contribue à une deuxième fonction lumineuse. [0002] A signaling device is known comprising a substrate, on a surface of which are mounted a first and a second light source, and in which at least one optical part is configured to conform the light emitted by the light sources, from so that the first light source contributes to a first signaling function and the second light source contributes to a second light function.
[0003] Ce dispositif de signalisation a plusieurs problèmes. This signaling device has several problems.
[0004] En particulier, un problème est issu des différences de réglementations nationales qui peuvent imposer des choix de sources lumineuses différentes selon les pays pour des versions spécifiques à des pays. Ainsi, un même type de dispositif lumineux peut avoir des versions différentes selon les pays, dans lesquelles sont utilisées des composants de sources lumineuses différentes, pouvant présenter des hauteurs différentes. On entend par hauteur l’épaisseur d’une LED dans une direction orthogonale à la surface sur laquelle elle est montée. [0004] In particular, a problem arises from the differences in national regulations which may impose choices of different light sources depending on the country for country-specific versions. Thus, the same type of light device may have different versions depending on the country, in which components of different light sources are used, which may have different heights. Height refers to the thickness of an LED in a direction orthogonal to the surface on which it is mounted.
[0005] De plus, il apparaît que la durée de production des composants de sources lumineuses est parfois plus courte que le cycle de vie du dispositif de signalisation, ce qui peut provoquer des situations dans lesquelles un composant de source lumineuse utilisée dans une première version du dispositif de signalisation n’est plus disponible sur le marché. Le dispositif de signalisation doit donc employer un autre composant de source lumineuse, pouvant présenter une hauteur différente de celle du composant initial. [0005] In addition, it appears that the production time of the light source components is sometimes shorter than the life cycle of the signaling device, which can cause situations in which a light source component used in a first version of the signaling device is no longer available on the market. The signaling device must therefore use another light source component, which may have a height different from that of the initial component.
[0006] Or, la hauteur de la source lumineuse a un fort impact tant sur les performances optiques que sur la dissipation thermique de la chaleur produite par la source lumineuse en fonctionnement. De plus, une apparence du dispositif de signalisation lorsqu’il est allumé peut être dégradée par une hauteur inadaptée d’une source lumineuse. Pour ce faire, la hauteur devrait être maîtrisée avec une tolérance de l’ordre du dixième de millimètre. [0006] However, the height of the light source has a strong impact both on the optical performance and on the heat dissipation of the heat produced by the light source in operation. Additionally, an appearance of the signaling device when turned on may be degraded by an unsuitable height of a light source. To do this, the height should be controlled with a tolerance of the order of a tenth of a millimeter.
[0007] A ces fins, on pourrait envisager de produire une pièce optique adaptée à la hauteur de chaque LED différente ; cependant, cela implique des coûts de revient élevés, en particulier pour la conception ainsi que pour l’outillage de production (moules notamment) permettant de produire des pièces optiques. De même, des modifications visant à modifier la position du substrat ont des conséquences quant aux structures de maintien du substrat identiques en termes de coûts puisqu’elles engendrent également des coûts de modification d’équipements. For these purposes, one could consider producing an optical part adapted to the height of each different LED; however, this involves high production costs, in particular for the design as well as for the production tooling (molds in particular) to produce optical parts. Similarly, modifications aimed at modifying the position of the substrate have consequences as regards the identical substrate support structures in terms of costs since they also generate equipment modification costs.
Objet de l’invention Object of the invention
[0008] L’objet de l’invention est donc de résoudre ce problème et de fournir un dispositif de signalisation aisément adaptable à différents composants de sources lumineuses, de sorte à parer aux évolutions des disponibilités et aux différences de régulations selon les pays. The object of the invention is therefore to solve this problem and to provide a signaling device that is easily adaptable to different components of light sources, so as to deal with changes in availability and differences in regulations depending on the country.
[0009] A cet effet, l’invention propose un dispositif de signalisation comportant : To this end, the invention proposes a signaling device comprising:
[0010] un substrat comprenant une face supérieure sur laquelle est disposée un circuit électronique supérieur, et au moins une couche intérieure comportant un circuit électronique intérieur, [0010] a substrate comprising an upper face on which an upper electronic circuit is arranged, and at least one inner layer comprising an inner electronic circuit,
[0011] le substrat comprenant sur sa face supérieure une cavité ayant une profondeur donnée par laquelle apparaît la couche intérieure, au moins une première source lumineuse étant montée dans la cavité sur le circuit électronique intérieur, [0011] the substrate comprising on its upper face a cavity having a given depth through which the interior layer appears, at least one first light source being mounted in the cavity on the interior electronic circuit,
[0012] au moins une pièce optique maintenue fixe par rapport au substrat, apte à conformer la lumière issue de la première source lumineuse de sorte à contribuer à une première fonction de signalisation, [0012] at least one optical part held fixed relative to the substrate, able to shape the light coming from the first light source so as to contribute to a first signaling function,
[0013] la première source lumineuse ayant une hauteur plus importante que la profondeur de la cavité. [0013] the first light source having a greater height than the depth of the cavity.
[0014] On comprend que le substrat est une plaque dotée d’une épaisseur, comme une carte de circuit imprimé bien connue de l’état de la technique. On entend par une couche intérieure une couche de circuit électronique intégrée entre deux épaisseurs de matière du substrat, comme c’est le cas dans les cartes de circuit imprimé multicouche laminées. [0014] It is understood that the substrate is a plate provided with a thickness, such as a well-known printed circuit board from the state of the art. By an inner layer is meant a layer of electronic circuit integrated between two thicknesses of material of the substrate, as is the case in laminated multilayer printed circuit boards.
[0015] On entend par "monter un composant", en particulier un composant de source lumineuse, le fait de fixer mécaniquement, notamment par brasage ou soudure, un composant directement sur un circuit électronique, de sorte à permettre son alimentation électronique via ledit circuit électronique. [0015] "Mounting a component", in particular a light source component, means the fact of mechanically fixing, in particular by soldering or soldering, a component directly on an electronic circuit, so as to allow its electronic power supply via said circuit electronic.
[0016] On entend par "une cavité" un évidement dans la matière du substrat, pouvant par exemple prendre la forme d’une tranchée. On comprend que la cavité a un fond au moins en partie plat en ce qu’elle laisse apparaître une partie de la couche intérieure elle-même plane, en particulier une partie du circuit électronique intérieur. La cavité peut être obtenue par différents procédés connus ne faisant pas l’objet de l’invention, impliquant notamment des étapes de fraisage et/ou de découpe laser. On comprend qu’elle permet de faire apparaître une partie de la couche intérieure et de son circuit électronique, de sorte à pouvoir y monter des composants. [0016] The term “cavity” means a recess in the material of the substrate, which can for example take the form of a trench. It is understood that the cavity has a bottom that is at least partly flat in that it reveals part of the inner layer which is itself flat, in particular part of the inner electronic circuit. The cavity can be obtained by various known methods which are not the subject of the invention, involving in particular milling and/or laser cutting steps. We understand that it makes it possible to reveal part of the inner layer and its electronic circuit, so that components can be mounted there.
[0017] On comprend que le dispositif lumineux comprend des moyens de maintien du support et de la pièce optique de sorte qu’ils sont fixes l’un par rapport à l’autre. Ces moyens peuvent revêtir des formes variés bien connues de l’homme du métier. [0017] It is understood that the luminous device comprises means for holding the support and optical part so that they are fixed relative to each other. These means can take various forms well known to those skilled in the art.
[0018] Dès lors que c’est sur la couche intérieure qu’est montée la source lumineuse, il est clair que c’est de la position de la couche intérieure que dépend la performance lumineuse. Les couches intérieures des substrats ont des espacements standard, desquels il est coûteux de s’écarter, ce qui implique une possible erreur de positionnement qui doit être comprise dans des tolérances de positionnement. Cela peut constituer un obstacle dans le cas de fonctions d’éclairage telles que les feux de croisement, les feux de route, les feux anti brouillard, pour lesquelles les performances attendues sont plus importantes et, par conséquent, les tolérances de positionnement en hauteur de la source lumineuse sont plus faibles. [0018] Since the light source is mounted on the inner layer, it is clear that the light performance depends on the position of the inner layer. The inner layers of the substrates have standard spacings, from which it is expensive to deviate, which implies a possible positioning error which must be included in the positioning tolerances. This can constitute an obstacle in the case of lighting functions such as dipped beam headlights, main beam headlights, fog lights, for which the expected performance is greater and, consequently, the height positioning tolerances of the light source are weaker.
[0019] L’invention permet donc, au prix d’une simple adaptation du substrat selon un procédé connu, d’employer un composant de source lumineuse de hauteur supérieure à celle d’un composant de source lumineuse initialement employée pour un dispositif de signalisation donné, sans engager aucune modification des autres composants ou des structures de maintien du substrat ou de l’optique coopérant avec la source lumineuse. La réalisation d’une cavité permet de compenser un supplément de hauteur du composant de source lumineuse, de sorte que la performance optique et la dissipation thermique, ainsi que l’aspect allumé, sont préservés, tout en évitant de coûteuses modifications d’éléments structurels assurant la position de la source lumineuse par rapport aux pièces optiques, ou de la pièce optique elle-même. The invention therefore allows, at the cost of a simple adaptation of the substrate according to a known method, to use a light source component of height greater than that of a light source component initially used for a signaling device given, without incurring any modification of the other components or of the structures for maintaining the substrate or of the optics cooperating with the light source. The provision of a cavity compensates for additional height of the light source component, so that optical performance and heat dissipation, as well as the lit appearance, are preserved, while avoiding costly modifications of structural elements ensuring the position of the light source relative to the optical parts, or of the optical part itself.
[0020] La hauteur de la première source lumineuse est plus importante que la profondeur de la cavité. De la sorte, il est possible, sans modifier la pièce optique, d’accommoder aussi bien des composants de source lumineuse de hauteur moins importante, en diminuant la profondeur de la cavité, ou des composants de hauteur plus importante, en augmentant la profondeur de la cavité. [0020] The height of the first light source is greater than the depth of the cavity. In this way, it is possible, without modifying the optical part, to accommodate both light source components of lesser height, by reducing the depth of the cavity, or components of greater height, by increasing the depth of the cavity.
[0021] Avantageusement, au moins une deuxième source lumineuse est montée sur le substrat. Dans ce cas, il est possible, au cours de la vie d’un produit donné, d’employer un composant de première source lumineuse ayant une hauteur modifiée, au sein d’un dispositif lumineux comportant des deuxièmes sources lumineuses non modifiées et des pièces optiques et des éléments de maintien du substrat non modifiés. [0021] Advantageously, at least one second light source is mounted on the substrate. In this case, it is possible, during the life of a given product, to employ a first light source component having a modified height, within a lighting device comprising second unmodified light sources and parts optics and unmodified substrate holding elements.
[0022] Avantageusement, la pièce optique comporte un guide de lumière configuré pour conformer des rayons lumineux de la première source lumineuse. Alternativement, la pièce optique comporte un réflecteur. [0022] Advantageously, the optical part comprises a light guide configured to shape light rays from the first light source. Alternatively, the optical part comprises a reflector.
[0023] Avantageusement, la pièce optique comporte un élément optique configuré pour conformer des rayons lumineux de la première source lumineuse et un élément optique séparé configuré pour conformer des rayons issus de la deuxième source lumineuse. Alternativement, une pièce optique comportant un unique élément optique, par exemple une pièce optique venue de matière, est configurée pour conformer des rayons issus de la première et de la deuxième source lumineuse. Advantageously, the optical part comprises an optical element configured to shape light rays from the first light source and a separate optical element configured to shape rays from the second light source. Alternatively, an optical part comprising a single optical element, for example, an optical part made from the material, is configured to conform the rays coming from the first and from the second light source.
[0024] Avantageusement, la pièce optique comporte un collimateur configuré pour conformer des rayons lumineux de la première source lumineuse et/ou de la deuxième source lumineuse. C’est par exemple souvent le cas pour les dispositifs lumineux à guide de lumière destinés à la signalisation des véhicules automobiles. [0024] Advantageously, the optical part comprises a collimator configured to conform light rays from the first light source and/or from the second light source. This is for example often the case for luminous devices with light guides intended for the signaling of motor vehicles.
[0025] Avantageusement, le substrat est de type FR4. Ce type de substrat est le plus adapté pour la réalisation de cavités et permet d’obtenir les effets recherchés à bas coûts. [0025] Advantageously, the substrate is of the FR4 type. This type of substrate is the most suitable for producing cavities and makes it possible to obtain the desired effects at low cost.
[0026] Avantageusement, les sources lumineuses sont des diodes électroluminescentes. [0026] Advantageously, the light sources are light-emitting diodes.
Liste des figures List of Figures
[0027] La [Fig.l] représente une vue partielle d’un dispositif de signalisation dans lequel une première source lumineuse montée dans une cavité coopère avec une première pièce optique. The [Fig.l] represents a partial view of a signaling device in which a first light source mounted in a cavity cooperates with a first optical part.
[0028] La [Fig.2] représente une vue partielle d’un dispositif de signalisation dans lequel une première source lumineuse montée dans une cavité coopère avec une première pièce optique, et dans lequel une deuxième source lumineuse coopère avec une deuxième pièce optique. [0028] The [Fig.2] represents a partial view of a signaling device in which a first light source mounted in a cavity cooperates with a first optical part, and in which a second light source cooperates with a second optical part.
Description des figures Description of figures
[0029] La [Fig.l] représente une vue partielle d’un dispositif lumineux de signalisation 10 pour un véhicule automobile, dans lequel un substrat 3 comporte une surface supérieure comprenant un circuit électronique 31 et une cavité dans ledit substrat 3. Une première source lumineuse 1 montée dans une cavité du substrat 3 coopère avec une pièce optique 41 munie d’une face d’entrée 43 configurée pour être disposée à une distance dl de la première source lumineuse 1. A ces fins, un support maintient la pièce optique 41 à une distance fixe du substrat 3 et donc de la première source lumineuse 1. Ladite source lumineuse est montée sur le circuit électronique intérieur 32 de la couche intérieure. [0029] The [Fig.l] represents a partial view of a luminous signaling device 10 for a motor vehicle, in which a substrate 3 comprises an upper surface comprising an electronic circuit 31 and a cavity in said substrate 3. A first light source 1 mounted in a cavity of substrate 3 cooperates with an optical part 41 provided with an input face 43 configured to be placed at a distance d1 from the first light source 1. For these purposes, a support holds the optical part 41 at a fixed distance from the substrate 3 and therefore from the first light source 1. Said light source is mounted on the interior electronic circuit 32 of the interior layer.
[0030] La cavité a dans le substrat une profondeur el et une largeur w. La première source lumineuse 1 a une hauteur H1 telle que la première source lumineuse 1 est située à une distance dl de la face d’entrée 43 de la pièce optique 4. The cavity has in the substrate a depth el and a width w. The first light source 1 has a height H1 such that the first light source 1 is located at a distance dl from the entrance face 43 of the optical part 4.
[0031] La [Fig.2] représente une vue partielle d’un dispositif lumineux de signalisation 10 pour un véhicule automobile, dans lequel un substrat 3 comporte une surface supérieure comprenant un circuit électronique 31 et une cavité dans ledit substrat 3. Une première source lumineuse 1 montée dans une cavité du substrat 3 coopère avec une pièce optique 4 comportant un élément optique 41 muni d’une face d’entrée 43 configurée pour être disposée à une distance dl de la première source lumineuse 1, et un élément optique 42 muni d’une face d’entrée 44 configurée pour être disposée à une distance d2 d’une deuxième source lumineuse 2 de hauteur H2, montée sur le circuit électronique de la surface 31 du substrat 3. [0031] The [Fig.2] represents a partial view of a luminous signaling device 10 for a motor vehicle, in which a substrate 3 comprises an upper surface comprising an electronic circuit 31 and a cavity in said substrate 3. A first light source 1 mounted in a cavity of substrate 3 cooperates with an optical part 4 comprising an optical element 41 provided with an input face 43 configured to be placed at a distance d1 from the first light source 1, and an optical element 42 provided with an entry face 44 configured to be disposed at a distance d2 from a second light source 2 of height H2, mounted on the electronic circuit from surface 31 of substrate 3.
[0032] A ces fins, un support non représenté maintient la pièce optique 4 à une distance fixe du substrat 3 et donc des sources lumineuses 1 et 2. La première source lumineuse 1 est montée sur le circuit électronique intérieur 32 de la couche intérieure. For these purposes, a support not shown maintains the optical part 4 at a fixed distance from the substrate 3 and therefore from the light sources 1 and 2. The first light source 1 is mounted on the interior electronic circuit 32 of the interior layer.
[0033] La cavité a dans le substrat une profondeur el et une largeur w. La première source lumineuse 1 a une hauteur H1 telle que la première source lumineuse 1 est située à une distance dl de la face d’entrée 43 de la pièce optique 4L The cavity has in the substrate a depth el and a width w. The first light source 1 has a height H1 such that the first light source 1 is located at a distance dl from the entrance face 43 of the optical part 4L

Claims

6 Revendications 6 Claims
[Revendication 1] Dispositif lumineux (10) de signalisation de véhicule automobile comportant : [Claim 1] Luminous device (10) for motor vehicle signaling comprising:
• un substrat (3) comprenant une face supérieure sur laquelle est disposée un circuit électronique supérieur (31), et au moins une couche intérieure comportant un circuit électronique intérieur (32), • a substrate (3) comprising an upper face on which is arranged an upper electronic circuit (31), and at least one inner layer comprising an inner electronic circuit (32),
• le substrat (3) comprenant sur sa face supérieure une cavité ayant une profondeur donnée (e) par laquelle apparaît la couche intérieure, au moins une première source lumineuse étant montée dans la cavité sur le circuit électronique intérieur,• the substrate (3) comprising on its upper face a cavity having a given depth (e) through which the interior layer appears, at least a first light source being mounted in the cavity on the interior electronic circuit,
• au moins une pièce optique (4) maintenue fixe par rapport au substrat (3), apte à conformer la lumière issue de la première source lumineuse de sorte à contribuer à une première fonction de signalisation, • at least one optical part (4) held fixed relative to the substrate (3), able to shape the light coming from the first light source so as to contribute to a first signaling function,
• la première source lumineuse ayant une hauteur (Hl) plus importante que la profondeur (e) de la cavité. • the first light source having a height (H1) greater than the depth (e) of the cavity.
[Revendication 2] Dispositif lumineux selon la revendication précédente, caractérisé en ce qu’il comprend au moins une deuxième source lumineuse (2) montée sur le circuit supérieur. [Claim 2] Luminous device according to the preceding claim, characterized in that it comprises at least one second light source (2) mounted on the upper circuit.
[Revendication 3] Dispositif lumineux selon l’une quelconque des revendications précédentes, caractérisé en ce que la pièce optique (4) comporte un guide de lumière configuré pour conformer des rayons lumineux de la première source lumineuse. [Claim 3] Luminous device according to any one of the preceding claims, characterized in that the optical part (4) comprises a light guide configured to conform light rays from the first light source.
[Revendication 4] Dispositif lumineux selon la revendication 2, caractérisé en ce que la pièce optique (4) comporte un élément optique (41) configuré pour conformer des rayons lumineux de la première source lumineuse et un élément optique séparé (42) configuré pour conformer des rayons issus de la deuxième source lumineuse. [Claim 4] Luminous device according to claim 2, characterized in that the optical part (4) comprises an optical element (41) configured to conform light rays from the first light source and a separate optical element (42) configured to conform rays from the second light source.
[Revendication 5] Dispositif lumineux selon l’une quelconque des revendications 3 à 4, caractérisé en ce que la pièce optique (4) comporte un collimateur configuré pour conformer des rayons lumineux de la première source lumineuse. [Claim 5] Luminous device according to any one of Claims 3 to 4, characterized in that the optical part (4) comprises a collimator configured to conform light rays from the first light source.
[Revendication 6] Dispositif lumineux selon l’une quelconque des revendications précédentes, caractérisé en ce que le substrat (3) est de type FR4. 7 [Claim 6] Luminous device according to any one of the preceding claims, characterized in that the substrate (3) is of the FR4 type. 7
[Revendication 7] Dispositif lumineux selon l’une quelconque des revendications précédentes, caractérisé en ce que les sources lumineuses (1,2) sont des diodes électroluminescentes. [Claim 7] Luminous device according to any one of the preceding claims, characterized in that the light sources (1,2) are light-emitting diodes.
PCT/EP2022/087729 2021-12-26 2022-12-23 Motor vehicle signalling device WO2023118567A1 (en)

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FR2114523A FR3131363B1 (en) 2021-12-26 2021-12-26 Motor vehicle signaling device
FRFR2114523 2021-12-26

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1895228A1 (en) * 2006-09-01 2008-03-05 Valeo Vision Lighting or signalling device with the appearance of a high-performance light guide for an automobile vehicle
WO2008038915A1 (en) * 2006-09-25 2008-04-03 Lg Innotek Co., Ltd Light emitting device and method of manufacturing the same
US20090001392A1 (en) * 2007-06-26 2009-01-01 Lee Kwang Cheol Light emitting device
US20140016340A1 (en) * 2012-07-13 2014-01-16 Yun Min CHO Lamp and vehicle lamp apparatus using the same
JP2016048625A (en) * 2014-08-27 2016-04-07 株式会社小糸製作所 Vehicle lighting appliance
EP3176495A1 (en) * 2015-12-02 2017-06-07 Automotive Lighting Reutlingen GmbH Lighting device for a motor vehicle
EP3190334A1 (en) * 2016-01-11 2017-07-12 Valeo Iluminacion Lighting module for vehicle comprising two kinds of light sources

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1895228A1 (en) * 2006-09-01 2008-03-05 Valeo Vision Lighting or signalling device with the appearance of a high-performance light guide for an automobile vehicle
WO2008038915A1 (en) * 2006-09-25 2008-04-03 Lg Innotek Co., Ltd Light emitting device and method of manufacturing the same
US20090001392A1 (en) * 2007-06-26 2009-01-01 Lee Kwang Cheol Light emitting device
US20140016340A1 (en) * 2012-07-13 2014-01-16 Yun Min CHO Lamp and vehicle lamp apparatus using the same
JP2016048625A (en) * 2014-08-27 2016-04-07 株式会社小糸製作所 Vehicle lighting appliance
EP3176495A1 (en) * 2015-12-02 2017-06-07 Automotive Lighting Reutlingen GmbH Lighting device for a motor vehicle
EP3190334A1 (en) * 2016-01-11 2017-07-12 Valeo Iluminacion Lighting module for vehicle comprising two kinds of light sources

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FR3131363A1 (en) 2023-06-30

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