EP2926052B1 - Motor vehicle lighting and/or signalling device - Google Patents

Motor vehicle lighting and/or signalling device Download PDF

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Publication number
EP2926052B1
EP2926052B1 EP13795804.7A EP13795804A EP2926052B1 EP 2926052 B1 EP2926052 B1 EP 2926052B1 EP 13795804 A EP13795804 A EP 13795804A EP 2926052 B1 EP2926052 B1 EP 2926052B1
Authority
EP
European Patent Office
Prior art keywords
adapter
optical module
holder
optical
support
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.)
Active
Application number
EP13795804.7A
Other languages
German (de)
French (fr)
Other versions
EP2926052A1 (en
Inventor
Damien Cabanne
Manuel Gomez
Juan Antonio Rubia Mena
Jose-Antonio Aguilar del Moral
Carlos Gomez
Eric Moisy
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 Iluminacion SA
Original Assignee
Valeo Iluminacion SA
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 Iluminacion SA filed Critical Valeo Iluminacion SA
Publication of EP2926052A1 publication Critical patent/EP2926052A1/en
Application granted granted Critical
Publication of EP2926052B1 publication Critical patent/EP2926052B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S41/19—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
    • 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]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • 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]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • F21S41/196—Wire spring attachments
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/39—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/49—Attachment of the cooling means
    • 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]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the invention relates to a lighting and / or signaling module comprising or intended to include a light source adapter, in particular a light-emitting diode, intended to rest on the support of a first optical element of this module. It also concerns the corresponding adapter.
  • Lighting and / or signaling devices for a motor vehicle consist of a housing closed by a closing glass and containing one or more optical modules.
  • the light beams emitted by these devices are produced by this or these optical module (s), which can operate together or separately.
  • These optical modules include a light source associated with one or more optical deflection elements, and possibly covers, to modulate the shape of the beam as well as the distribution of the light intensity in this beam.
  • the document DE 10 2010 049 105 A1 describes a reflector fixed to a support acting as a radiator, the support comprising a cylindrical hole for positioning an adapter supporting a light source.
  • the document JP 2008 108613 A1 describes a reflector and a light source comprising complementary indexing means making it possible to position the reflector with respect to the source.
  • the document FR2950129 comprises an optical module using an LED, in order to allow the management of the power supply of this LED, this one is placed on a printed circuit.
  • the printed circuit on which the LED is fixed is fixed on an adapter positioning it in the optical module.
  • This adapter allows the LED of this module to be changed by removing and replacing the adapter.
  • the positioning of the adapter must be precise so that the association with the optical elements generates the light beam of the desired shape.
  • the light emitting element must be positioned precisely with respect to the focus of the first optical element, which collects the rays emitted from the surface of the light emitting element.
  • this support is indexed in the three directions of space, X, Y, Z, relative to the support of the optical element.
  • a problem of the present invention is to improve this positioning.
  • this module comprises an adapter which will be indexed directly on the optical element, also called the optical deflection element in the present application, at least along two distinct and intersecting axes.
  • the Applicant could have sought to gain in machining or manufacturing precision of the elements, to position them during assembly even more precisely.
  • it took a different direction and found a solution allowing it to reduce its rib chain, which, in particular in view of the examples disclosed in the prior art, in particular in view of FR2950129 , is not obvious. It has freed itself from indexing on the support of the element taught by the prior art and has found means for directly indexing the light source on the optical element at least along two axes.
  • the object of the invention is therefore particularly suitable for replacing the light source, in particular when it is an LED.
  • this adapter will be able to index itself precisely with respect to these indexing means, in particular with a module according to the invention. This is particularly useful in the context of a replacement of the light source, this replacement being able to be done on the vehicle.
  • this printed circuit can be a printed circuit board, the adapter possibly comprising a support block, for example a heat sink, on which the printed circuit is fixed.
  • This circuit can also be directly formed or printed on the support block, which can also in this case be a radiator.
  • the support block may include fins.
  • the adapter can comprise several light sources.
  • Another object of the invention is a vehicle lighting and / or signaling device comprising a module according to the invention.
  • a module for example, it may be a projector, also called a vehicle headlight.
  • the optical module can be a lighting module, for example to produce a lighting beam or a passing beam.
  • the figures 1 to 12 show three embodiments according to the invention. These illustrations are examples of implementation.
  • the indexing means 61, 62 visible in figures 3 and 6 , are tenons 61, 62
  • the support can be a monolithic material, for example formed in one piece. It can consist essentially of the material capable of conducting heat.
  • the material capable of conducting heat can be metal, in particular aluminum.
  • the support 20, 120, and 220 comprises rear fins 24 and 25, or 124 and 125, located behind said support and behind the optical deflection element 12 with respect to the direction of propagation R wherein the optical deflection element is intended to deflect the rays.
  • the direction of propagation R is only represented figure 1 , but is the same in the different figures. This support therefore forms a finned radiator 24 and 25, or 124 and 125.
  • the adapter according to the invention has a width less than but close to the distance between these guide fins 23; 123, which facilitates guidance and positioning when replacing adapter 70, 170, 270.
  • these bearing surfaces 66 are the contact surfaces. They therefore have the dual function of thermal and mechanical contact.
  • the optical module is a lighting module, for example to produce a lighting beam, for example a passing beam.
  • the adapter 70, 170, 270 is arranged at the level of the day 29 so that the light source 13 fixed above has its overall direction of emission oriented towards the concavity of the reflector 12.
  • the latter reflects the light rays emitted by it.
  • the light source 13 shines downwards.
  • the second branch can include other fins, not shown.
  • the rear fins 25, 125 include a recess 25a, 125a arranged so as to create a clear space of fins 27, 127, inside which is located at least part of said adapter fixing means 26, 126, 226 , here pairs of claw-shaped legs.
  • Each tab comprises at least one notch suitable for receiving a metal fixing rod 90, 190, 290, of the adapter 70, 170, 270.
  • These additional indexing means are orifices 71, 72, in particular holes passing right through the printed circuit 80.
  • the light source 13 adapter 70, 170, 270 comprises a support block 73 on which the printed circuit 80 is fixed, and therefore indirectly the light source 13.
  • the light source 13 is an LED comprising a substrate 15 fixed to the printed circuit 80, for example by electrodes.
  • the substrate carries a photoemissive semiconductor element 14.
  • the adapter or the support can carry an articulated metal rod 90, 190, 290 which will hook or press down on the support or the adapter, respectively.
  • the fins 75 on the edges of the adapter 70 comprise a hole through which passes the end 93 of a rod 90.
  • the end 93 of said metal rod 90 is free to rotate in this hole, so as to form an articulation of the rod 90 on these two fins.
  • the rod is formed into an unclosed loop. Two ends 93 are therefore articulated.
  • the buckle can thus swing downwards to hook onto the adapter fixing tabs 26 formed on the support 20, the hooked portion of the buckle thus forming a fixing part 91.
  • the support comprises a protruding guiding and holding portion 22 in the form of a claw.
  • the adapter 70 when the adapter 70 is placed in the module 10, the adapter slides on the contact surfaces 66 of the support 20, guided transversely by the guide fins 23 of the support. It will slide until it is blocked by the projecting tab 22, which is housed between two fins 75 of the adapter 70 thus completing the guidance.
  • the adapter can then be folded down so that its contact surfaces 76, located on either side of the printed circuit, come into contact with the contact surfaces 66 of the module.
  • the tenons 61, 62 will enter the through holes 71, 72 and ensure the indexing of the LED 13 relative to the reflector 12, in particular at its focal point.
  • the support block comprises cavities 74 facing the through-holes 71, each through-hole opening entirely into a cavity 74 which is specific to it.
  • the tenons 61, 62 protrude from the printed circuit inside these cavities. They therefore do not need to be sized exactly to the size of the holes in the PCB.
  • the rod 90 is folded down towards the rear branch of the “L” of the support 20 and hooks onto the fixing tabs 26 of the adapter.
  • the adapter 70 is thus kept pressed against the support 20 on one side by the rod 90 and on the other by the tab 22.
  • the principle of mounting the adapter 170, 270 is generally the same, with however the differences set out below.
  • the metal rod 190, 290 is hinged on one side to said support 120, 220, said rod further comprising a plating portion 195, 295 intended to be fixed by plating to the adapter, the rod being arranged to allow fixing in compression of the adapter 170, 270 to the module, resting on the bearing surfaces 177, 277 of the adapter.
  • the through hole in which the end 193 of the rod articulates is arranged on a fin 123 of the support 120 of the reflector 12.
  • the through hole in which the end 293 of the rod articulates is arranged on a projecting part 222 distinct from the fins.
  • the metal rod 90, 190, 290 comprises a hooking part 91, 191, 291 coming in cooperation with a notch 26a, 126a, 226a of the adapter fixing means 26, 126, 226 .
  • the metal rod 90, 190, 290 comprises a gripping portion 94, 194, 294 in the shape of a handle intended to be gripped to allow the detachment of said rod from the adapter fixing means, for example by gripping the finger by a operator.
  • the plating portion 195, 295 is located between the hooking portion 191, 291 and the articulated end 193, 293.
  • the adapter 170, 270 is maintained. pressed against the support 120, 220 on one side by the hooking of the hooking part 191, 291 and on the other by the fixing part 195, 295.
  • said adapter fixing means 126 comprise another notch 126b adapted to receive the metal fixing rod 190, so that each notch 126a, 126b defines a different fixing position of the metal rod. .
  • the rod is positioned in the intermediate notch 126b, allowing a pre-positioning of the module before its final fixing, for example to adjust it correctly before folding it down. Then, the rod is placed in the final notch 126a to permanently fix the adapter 170 to the module 120.
  • the term "definitive" is understood to mean definitive to operate the module and not for the entire service life of the module. module, since according to the invention this clip is removable to allow replacement of the light source by removing and replacing the adapter.
  • the support block that the adapter 70, 170, 270 comprises is a radiator whose fins 75, 175, 275 are arranged to dissipate the heat given off by the LED 13. This is all the more effective when they are oriented upwards.
  • the adapter 70, 170, 270 includes a connector 82, 182, or 282, connected to the LED 13 and the socket 20, 120, and 220, also includes a connector 82, 182.
  • these connectors are arranged one above the other when the adapter 70 is positioned in the support, so that during assembly the simple fact of folding the adapter against the module will plug the connectors into each other.
  • the connector 382 of the adapter 70 may include connection pins 384, 385, the connector 502 of the support being connected by plugging its pins 504, 404, between those of the connector of the adapter.
  • the pins of the connector of the support 20 comprise blades 516 mounted on more rigid parts 514 between which the central pin of the adapter connector is plugged, the rigid parts 514 are housed between the walls 484 of the adapter connector 70.
  • the rigid parts 514 are connected to the support 20 by means of a spring 518 making it possible to reduce the dimensional tolerances for the assembly when fixing the adapter 70.
  • the contact surfaces 76 of the adapter 66 and of the support are in direct contact.
  • the optical element exhibiting play along an axis perpendicular to the tangent to these surfaces, ie along the vertical axis Z in the embodiments shown.
  • This clearance may for example be between 0.1 and 2 mm, preferably between 0.5 and 1 mm, preferably 0.5 mm.
  • the contact surfaces 66 of the support and / or the contact surfaces 76 of the adapter are covered by a compressible and thermally conductive element, in particular a silicone. filled, for example a PAD 900 silicone.
  • This compressible element may have a thickness of approximately 229 ⁇ m.
  • the contact surfaces 66 and 76 are in direct or indirect thermal contact so that the adapter 70, 170, 270 and said support 20, 120, 220 of the optical element 12 form a single heat sink, some of the fins are located - 75, 23, 24, 25; 175, 123, 124, 125; 275, 223, 224, 225 - on the adapter 70, 170, 270 and for others on the support 20, 120, 220.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Description

L'invention concerne un module d'éclairage et/ou de signalisation comportant ou destiné à comporter un adaptateur de source lumineuse, en particulier une diode électroluminescente, destinée à être en appui sur le support d'un premier élément optique de ce module. Elle concerne également l'adaptateur correspondant.The invention relates to a lighting and / or signaling module comprising or intended to include a light source adapter, in particular a light-emitting diode, intended to rest on the support of a first optical element of this module. It also concerns the corresponding adapter.

Les dispositifs d'éclairage et/ou de signalisation pour un véhicule automobile, tels que les projecteurs et les feux arrière, sont constitués d'un boîtier fermé par une glace de fermeture et contenant un ou plusieurs modules optiques. Les faisceaux lumineux émis par ces dispositifs sont réalisés par ce ou ces modules optiques, qui peuvent fonctionner ensemble ou séparément. Ces modules optiques comprennent une source lumineuse associée à un ou plusieurs éléments de déviation optique, et éventuellement des caches, pour moduler la forme du faisceau ainsi que la répartition de l'intensité lumineuse dans ce faisceau.Lighting and / or signaling devices for a motor vehicle, such as headlamps and rear lights, consist of a housing closed by a closing glass and containing one or more optical modules. The light beams emitted by these devices are produced by this or these optical module (s), which can operate together or separately. These optical modules include a light source associated with one or more optical deflection elements, and possibly covers, to modulate the shape of the beam as well as the distribution of the light intensity in this beam.

Le document DE 10 2010 049 105 A1 décrit un réflecteur fixé à un support faisant office de radiateur, le support comprenant un trou cylindrique permettant de positionner un adaptateur supportant une source lumineuse.The document DE 10 2010 049 105 A1 describes a reflector fixed to a support acting as a radiator, the support comprising a cylindrical hole for positioning an adapter supporting a light source.

Le document JP 2008 108613 A1 décrit un réflecteur et une source lumineuse comprenant des moyens d'indexation complémentaires permettant de positionner le réflecteur par rapport à la source.The document JP 2008 108613 A1 describes a reflector and a light source comprising complementary indexing means making it possible to position the reflector with respect to the source.

Le document FR2950129 comprend un module optique utilisant une DEL, afin de permettre la gestion de l'alimentation de cette DEL, celle-ci est placée sur un circuit imprimé. Le circuit imprimé sur lequel est fixée la DEL est fixé sur un adaptateur le positionnant dans le module optique. Cet adaptateur permet de changer la DEL de ce module par retrait et remplacement de l'adaptateur. Le positionnement de l'adaptateur doit être précis pour que l'association avec les éléments optiques génère le faisceau lumineux de forme désirée. En particulier, l'élément photoémissif doit être positionné précisément par rapport au foyer du premier élément optique, qui collecte les rayons émis depuis la surface de l'élément photoémissif.The document FR2950129 comprises an optical module using an LED, in order to allow the management of the power supply of this LED, this one is placed on a printed circuit. The printed circuit on which the LED is fixed is fixed on an adapter positioning it in the optical module. This adapter allows the LED of this module to be changed by removing and replacing the adapter. The positioning of the adapter must be precise so that the association with the optical elements generates the light beam of the desired shape. In particular, the light emitting element must be positioned precisely with respect to the focus of the first optical element, which collects the rays emitted from the surface of the light emitting element.

Pour cela ce support est indexé dans les trois directions de l'espace, X, Y, Z, par rapport au support de l'élément optique.For this, this support is indexed in the three directions of space, X, Y, Z, relative to the support of the optical element.

Un problème de la présente invention est de perfectionner ce positionnement.A problem of the present invention is to improve this positioning.

L'objet de l'invention est donc un module optique pour dispositif d'éclairage et/ou de signalisation pour véhicule automobile tel que défini dans la revendication 1 et comprenant :

  • un premier élément de déviation optique,
  • un support de cet élément de déviation optique, ledit premier élément de déviation optique étant fixé audit support,
dans lequel ledit support comprend des moyens de fixation d'adaptateur aptes à fixer un adaptateur sur lequel est fixée une source de lumière ou à recevoir un élément de fixation de cet adaptateur, et dans lequel ledit premier élément de déviation optique comprend des moyens d'indexation d'adaptateur agencés de manière à être aptes à positionner cet adaptateur par rapport au premier élément de déviation optique selon deux axes distincts et sécants.The object of the invention is therefore an optical module for a device lighting and / or signaling for a motor vehicle as defined in claim 1 and comprising:
  • a first optical deflection element,
  • a support for this optical deflection element, said first optical deflection element being fixed to said support,
wherein said support comprises adapter fixing means adapted to fix an adapter to which is fixed a light source or to receive a fixing element of this adapter, and in which said first optical deflection element comprises means for adapter indexing arranged so as to be able to position this adapter relative to the first optical deflection element along two distinct and intersecting axes.

Ainsi ce module comprend un adaptateur qui va s'indexer directement sur l'élément optique, appelé également l'élément de déviation optique dans la présente demande, au moins selon deux axes distincts et sécants. Par rapport à l'art antérieur, la demanderesse aurait pu chercher à gagner en précision d'usinage ou de fabrication des éléments, à les positionner lors du montage encore plus précisément. Dans sa démarche inventive, celle-ci s'est orientée différemment et a trouvé une solution lui permettant de diminuer sa chaîne de côte, ce qui, notamment au vu des exemples divulgués dans l'art antérieur, notamment au vu de FR2950129 , n'est pas évident. Elle s'est affranchie d'un indexage sur le support de l'élément enseigné par l'art antérieur et a trouvé des moyens pour indexer directement la source lumineuse sur l'élément optique au moins selon deux axes. On a ainsi une chaîne de côte selon ces deux axes diminuée et une précision renforcée. Il est à noter que cet avantage est obtenu tout en conservant une fixation au support de l'élément de déviation optique, cela permet d'exercer les efforts lors du démontage de l'adaptateur sur le support et non directement sur l'élément de déviation optique.Thus this module comprises an adapter which will be indexed directly on the optical element, also called the optical deflection element in the present application, at least along two distinct and intersecting axes. Compared to the prior art, the Applicant could have sought to gain in machining or manufacturing precision of the elements, to position them during assembly even more precisely. In its inventive approach, it took a different direction and found a solution allowing it to reduce its rib chain, which, in particular in view of the examples disclosed in the prior art, in particular in view of FR2950129 , is not obvious. It has freed itself from indexing on the support of the element taught by the prior art and has found means for directly indexing the light source on the optical element at least along two axes. There is thus a chain of rib along these two reduced axes and enhanced precision. It should be noted that this advantage is obtained while maintaining an attachment to the support of the optical deflection element, this makes it possible to exert the forces during the removal of the adapter on the support and not directly on the deflection element. optical.

L'objet de l'invention est donc particulièrement adapté au remplacement de la source lumineuse notamment lorsqu'il s'agit d'une DEL.The object of the invention is therefore particularly suitable for replacing the light source, in particular when it is an LED.

Le module optique selon l'invention peut également présenter, outre les caractéristiques principales énoncées dans les paragraphes précédents, une ou plusieurs des caractéristiques complémentaires suivantes :

  • l'élément de déviation optique peut être notamment un réflecteur, une lentille optique, un guide de lumière.
  • les moyens d'indexation dudit support comprennent des orifices et/ou des tenons ; ceci permet de positionner et indexer un adaptateur comportant des formes complémentaires selon des mouvements simples ; ces moyens sont également faciles à réaliser ;
  • le support de l'élément de déviation optique est un dissipateur thermique et comprend:
    • un matériau apte à conduire la chaleur,
    • des surfaces de contact comprenant une partie de ce matériau, de manière à transmettre la chaleur d'un élément qui serait au contact desdites surfaces de contact ;
ce support va pouvoir servir également de dissipateur thermique de l'adaptateur destiné à être monté dessus, et en particulier à dissiper directement la chaleur dégagée par la source de lumière fixée sur l'adaptateur ; ledit support peut comprendre des ailettes, le support étant alors un radiateur à ailettes ;
  • ledit support peut comprendre des ailettes arrière situées à l'arrière dudit support et derrière l'élément de déviation optique par rapport au sens de propagation selon lequel l'élément de déviation optique est destiné à dévier les rayons ; cela permet une fois le module monté à l'intérieur d'un dispositif d'éclairage et/ou de déviation, d'évacuer la chaleur vers l'arrière ; on augmente également la surface d'échange sans encombrement au niveau du trajet des rayons lumineux émis par la source et déviés par l'élément de déviation optique ;
  • les ailettes arrière comprennent un décrochement agencé de manière à créer un espace dégagé d'ailettes, à l'intérieur duquel se situe au moins une partie desdits moyens de fixation d'adaptateur ; on améliore ainsi la compacité du système ;
  • le support comprend également un connecteur destiné à être connecté d'une part à l'alimentation électrique d'un véhicule et d'autre part à la source de lumière, le connecteur étant logé dans ledit espace dégagé d'ailettes ;
  • ledit support est en forme de « L » et comprend :
    • sur une première branche du « L » lesdites ailettes arrière,
    • éventuellement, sur une deuxième branche du « L » d'autres ailettes ;
cela permet une conception simple, pour répartir les ailettes, l'élément de déviation optique pouvant par exemple être monté entre les branches du « L » pour améliorer la dissipation thermique ;
  • les moyens de fixation d'adaptateur, à savoir les moyens destinés à fixer un adaptateur au module, comprennent au moins une patte avec au moins une encoche apte à recevoir une tige métallique de fixation ; il s'agit d'un moyen simple de fixation ; la fixation par tige permet de réaliser un plaquage de pièces l'une contre l'autre en utilisant l'effet ressort de la tige ;
  • les moyens de fixation d'adaptateur comprennent une autre encoche apte à recevoir une tige métallique de fixation, de manière à ce que chaque encoche définisse une position de fixation différente de la tige métallique ; cela permet de définir un pré-positionnement d'un adaptateur lors de son remplacement ;
  • ledit support comprend une tige métallique articulée d'un côté sur ledit support, ladite tige comprenant de plus une partie de fixation destinée à être fixée à l'adaptateur, la tige étant agencée pour permettre une fixation en compression au module ; on a ainsi un moyen d'attache simple évitant l'emploi de vis qui nécessite l'utilisation d'un tournevis lors de la rechange ; également lors du remplacement de la source lumineuse et de son adaptateur, ce moyen de fixation ne risque pas de tomber dans le dispositif d'éclairage et/ou de signalisation dans lequel le module est monté ;
  • selon un mode simple de réalisation, l'articulation comprend un trou traversant, à l'intérieur duquel une extrémité de ladite tige métallique (190 ; 290) est libre en rotation ;
  • l'articulation est agencée sur une ailette dudit support d'élément de déviation optique ou sur une partie saillante distincte des ailettes ; cette articulation est simple à réaliser ;
  • ladite tige métallique comprend une partie d'accrochage apte à venir en coopération avec une encoche des moyens de fixation d'adaptateur ; la fixation peut ainsi être réalisée facilement en un mouvement, facilitant ainsi le remplacement de l'adaptateur, ceci étant d'autant plus avantageux car l'accès au dispositif d'éclairage et/ou de signalisation est parfois difficile sur un véhicule ;
  • la tige métallique comprend une portion de préhension en forme d'anse destinée à être saisie pour permettre le décrochement de ladite tige des moyens de fixation d'adaptateur ;
  • la tige est en forme de boucle fermée ou non, articulée d'un côté et se fixant audit moyens de fixation d'adaptateur de l'autre ;
  • ledit support comprend :
    • un jour en vis-à-vis de l'élément de déviation optique,
    • des ailettes de guidage de part et d'autres de ce jour, notamment parallèles entre elles,
    • des surfaces d'appui entre ce jour et ces ailettes de guidage,
    lesdites ailettes de guidage étant agencées de manière à permettre le guidage d'un bloc de largeur proche de la distance entre ces ailettes de guidage pour le positionner en contact avec ces surfaces d'appui ; ainsi lorsque l'adaptateur est un tel bloc, il est possible de le faire glisser alors même que le module est difficile d'accès et/ou qu'il n'est pas ou peu visible ; ces dites surfaces d'appui peuvent être lesdites surfaces de contact mentionnées plus haut ;
  • les surfaces de contact sont recouvertes par un élément compressible et conducteur thermiquement, notamment une silicone chargée ; cela permet de compresser l'élément compressible jusqu'à ce que l'adaptateur touche l'élément de déviation optique et s'indexe alors selon un troisième axe et non sur le support, l'adaptateur étant ainsi indexé directement sur l'élément de déviation optique dans toutes les directions de l'espace.
The optical module according to the invention can also have, in addition to the main characteristics stated in the preceding paragraphs, one or more of the following additional characteristics:
  • the optical deflection element may in particular be a reflector, an optical lens or a light guide.
  • the indexing means of said support comprise orifices and / or tenons; this makes it possible to position and index an adapter comprising complementary shapes according to simple movements; these means are also easy to achieve;
  • the support for the optical deflection element is a heat sink and includes:
    • a material capable of conducting heat,
    • contact surfaces comprising a portion of this material, so as to transmit heat from an element which would be in contact with said contact surfaces;
this support will also be able to serve as a heat sink for the adapter intended to be mounted on it, and in particular to directly dissipate the heat given off by the light source attached to the adapter; said support may comprise fins, the support then being a finned radiator;
  • said support may include rear fins located behind said support and behind the optical deflection element with respect to the direction of propagation in which the optical deflection element is intended to deflect the rays; this allows, once the module is mounted inside a lighting and / or deflection device, to evacuate the heat towards the rear; the exchange surface is also increased without bulk at the level of the path of the light rays emitted by the source and deflected by the optical deflection element;
  • the rear fins comprise a recess arranged so as to create a clear space of fins, inside which is located at least part of said adapter fixing means; the compactness of the system is thus improved;
  • the support also comprises a connector intended to be connected on the one hand to the power supply of a vehicle and on the other hand to the light source, the connector being housed in said space free from fins;
  • said support is "L" shaped and comprises:
    • on a first branch of the "L" said rear fins,
    • possibly, on a second branch of the "L" of other fins;
this allows a simple design, to distribute the fins, the optical deflection element can for example be mounted between the branches of the "L" to improve heat dissipation;
  • the adapter fixing means, namely the means intended to fix an adapter to the module, comprise at least one tab with at least one notch adapted to receive a metal fixing rod; it is a simple means of fixing; the fixing by rod makes it possible to press parts against each other by using the spring effect of the rod;
  • the adapter fixing means comprise another notch suitable for receiving a metal fixing rod, so that each notch defines a different fixing position of the metal rod; this makes it possible to define a pre-positioning of an adapter during its replacement;
  • said support comprises a metal rod hinged on one side to said support, said rod further comprising an attachment portion intended to be attached to the adapter, the rod being arranged to allow compression attachment to the module; there is thus a simple attachment means avoiding the use of screws which necessitates the use of a screwdriver during replacement; also when replacing the light source and its adapter, this fastening means does not risk falling into the lighting and / or signaling device in which the module is mounted;
  • according to a simple embodiment, the hinge comprises a through hole, inside which one end of said metal rod (190; 290) is free to rotate;
  • the articulation is arranged on a fin of said optical deflection element support or on a projecting part distinct from the fins; this articulation is simple to achieve;
  • said metal rod comprises a hooking part adapted to come into cooperation with a notch of the adapter fixing means; the fixing can thus be carried out easily in one movement, thus facilitating the replacement of the adapter, this being all the more advantageous since the access the lighting and / or signaling device is sometimes difficult on a vehicle;
  • the metal rod comprises a gripping portion in the form of a handle intended to be gripped in order to allow the detachment of said rod from the adapter fixing means;
  • the rod is in the form of a closed loop or not, articulated on one side and fixing to said adapter fixing means on the other;
  • said support comprises:
    • one day opposite the optical deflection element,
    • guide vanes on either side of this day, in particular parallel to each other,
    • bearing surfaces between this day and these guide fins,
    said guide fins being arranged so as to allow the guiding of a block of width close to the distance between these guide fins to position it in contact with these bearing surfaces; thus when the adapter is such a block, it is possible to slide it even though the module is difficult to access and / or it is not or hardly visible; these said bearing surfaces may be the said contact surfaces mentioned above;
  • the contact surfaces are covered by a compressible and thermally conductive element, in particular a charged silicone; this allows the compressible element to be compressed until the adapter touches the optical deflection element and is then indexed along a third axis and not on the support, the adapter thus being indexed directly on the element of optical deviation in all directions of space.

L'adaptateur du module optique peut être échangé. Il comprend avantageusement :

  • au moins une source de lumière,
  • un circuit imprimé, sur lequel est fixée et connectée la source de lumière,
  • des moyens de fixation complémentaires aptes à permettre la fixation de l'adaptateur,
  • des moyens d'indexation complémentaires formés sur ledit circuit imprimé, agencés de manière à ce que lorsqu'un élément est positionné par rapport à ces moyens d'indexation, l'adaptateur est positionné par rapport à cet élément selon deux axes distincts et sécants.
The optical module adapter can be exchanged. It advantageously comprises:
  • at least one light source,
  • a printed circuit, on which the light source is fixed and connected,
  • complementary fixing means suitable for allowing the fixing of the adapter,
  • complementary indexing means formed on said printed circuit, arranged so that when an element is positioned relative to these indexing means, the adapter is positioned relative to this element along two distinct and intersecting axes.

Ainsi cet adaptateur va pouvoir s'indexer précisément par rapport à ces moyens d'indexation, en particulier avec un module selon l'invention. Cela est particulièrement utile dans le cadre d'un remplacement de la source de lumière, ce remplacement pouvant se faire sur véhicule.Thus this adapter will be able to index itself precisely with respect to these indexing means, in particular with a module according to the invention. This is particularly useful in the context of a replacement of the light source, this replacement being able to be done on the vehicle.

Egalement, cela permet d'avoir un adaptateur portant une source de lumière standard pouvant s'adapter à différents types de modules optiques. Cet adaptateur est concevable pour des DEL, ce qui est d'autant plus avantageux. En effet, une DEL étant un composant électronique, dans de nombreuses conceptions de modules optiques, sa défaillance nécessite le changement du module complet voire du dispositif d'éclairage et/ou de signalisation. Avec l'invention, on peut changer une partie réduite du module, à savoir l'adaptateur et sa source de lumière. On diminue ainsi le coût de remplacement.Also, this makes it possible to have an adapter carrying a standard light source which can adapt to different types of optical modules. This adapter is conceivable for LEDs, which is all the more advantageous. Indeed, since an LED is an electronic component, in many optical module designs, its failure requires the entire module to be changed or even the lighting and / or signaling device. With the invention, it is possible to change a reduced part of the module, namely the adapter and its light source. The replacement cost is thus reduced.

A noter que ce circuit imprimé peut être une carte de circuit imprimé, l'adaptateur pouvant comprendre un bloc de support, par exemple un radiateur, sur lequel est fixé le circuit imprimé. Ce circuit peut également être directement formé ou imprimé sur le bloc de support, qui peut également être dans ce cas un radiateur. Le bloc de support peut comprendre des ailettes.Note that this printed circuit can be a printed circuit board, the adapter possibly comprising a support block, for example a heat sink, on which the printed circuit is fixed. This circuit can also be directly formed or printed on the support block, which can also in this case be a radiator. The support block may include fins.

Cet adaptateur peut également présenter, outre les caractéristiques principales énoncées dans les paragraphes précédents, une ou plusieurs des caractéristiques complémentaires suivantes :

  • lesdits moyens d'indexation complémentaires sont des orifices ; il s'agit d'un moyen simple de réalisation ;
  • lesdits orifices sont des trous traversant le circuit imprimé de part en part ; on renforce ainsi le positionnement ;
  • l'adaptateur comprend un bloc de support sur lequel est fixé le circuit imprimé, ledit bloc de support comprenant des cavités en vis-à-vis des trous traversant, chaque trou traversant débouchant entièrement dans une cavité qui lui est propre ; cela permet une plus grande tolérance sur la longueur des moyens d'indexation des différents types de module sur lesquels l'adaptateur pourra être monté ;
  • l'adaptateur comprend une tige métallique articulée d'un côté sur ledit adaptateur, ladite tige comprenant de plus une partie de fixation destinée à être fixée à un élément, tel qu'un module optique, ladite tige étant agencée pour permettre une fixation en compression de l'adaptateur à cet élément ;
  • l'articulation comprend un trou traversant, à l'intérieur duquel une extrémité de ladite tige métallique est libre en rotation ;
  • l'articulation est agencée sur une ailette dudit adaptateur ou sur une partie saillante distincte des ailettes de l'adaptateur ;
  • ladite tige métallique comprend une portion apte à coopérer avec une encoche ;
  • ladite tige métallique comprend une portion de préhension en forme d'anse destinée à être saisie pour permettre le décrochement de la tige ;
  • ladite tige est en forme de boucle fermée ou non, articulée d'un côté et avec une portion apte à coopérer avec une encoche de l'autre ;
  • l'adaptateur comprend un connecteur connecté à la source lumineuse et apte à être connecté une source d'alimentation électrique pour alimenter ladite source lumineuse.
This adapter may also have, in addition to the main characteristics stated in the preceding paragraphs, one or more of the following additional characteristics:
  • said complementary indexing means are orifices; it is about a simple means of realization;
  • said orifices are holes passing right through the printed circuit; the positioning is thus reinforced;
  • the adapter comprises a support block on which the printed circuit is fixed, said support block comprising cavities facing the through holes, each through hole opening entirely into a cavity which is specific to it; this allows a greater tolerance on the length of the means for indexing the different types of module on which the adapter can be mounted;
  • the adapter comprises a metal rod hinged on one side to said adapter, said rod further comprising an attachment portion intended to be attached to an element, such as an optical module, said rod being arranged to allow compression attachment from the adapter to this element;
  • the joint comprises a through hole, inside which one end of said metal rod is free to rotate;
  • the articulation is arranged on a fin of said adapter or on a projecting part distinct from the fins of the adapter;
  • said metal rod comprises a portion adapted to cooperate with a notch;
  • said metal rod comprises a handle-shaped gripping portion intended to be gripped to allow the rod to be released;
  • said rod is in the form of a closed loop or not, hinged on one side and with a portion able to cooperate with a notch on the other;
  • the adapter comprises a connector connected to the light source and able to be connected to an electrical power source for supplying said light source.

L'invention vise un module comprenant :

  • un adaptateur fixé audit support d'élément de déviation optique par l'intermédiaire desdits moyens de fixation d'adaptateur,
  • au moins une source de lumière fixée directement ou indirectement sur l'adaptateur et émettant des rayons lumineux vers le premier élément de déviation optique, ledit support étant agencé pour laisser passer ces rayons lumineux,
dans lequel l'adaptateur comprend des moyens d'indexation complémentaires coopérant avec lesdits moyens d'indexation d'adaptateur de manière à ce que ledit adaptateur et le premier élément de déviation optique soient positionnés l'un par rapport à l'autre selon deux axes distincts et sécants.The invention relates to a module comprising:
  • an adapter attached to said optical deflection element holder through said adapter attachment means,
  • at least one light source fixed directly or indirectly on the adapter and emitting light rays towards the first optical deflection element, said support being arranged to let these light rays pass,
wherein the adapter comprises complementary indexing means cooperating with said adapter indexing means so that said adapter and the first optical deflection element are positioned relative to each other along two axes distinct and intersecting.

Le module optique selon l'invention peut également présenter, outre les caractéristiques principales énoncées dans les paragraphes précédents, une ou plusieurs des caractéristiques complémentaires suivantes :

  • lesdits moyens d'indexation d'adaptateur sont des orifices et dans lequel lesdits moyens d'indexation complémentaires sont une forme complémentaire de la forme de cet orifice et sont logés à l'intérieur de cet orifice ;
  • lesdits moyens d'indexation complémentaires sont des orifices et dans lequel lesdits moyens d'indexation d'adaptateur ont une forme complémentaire de la forme de ces orifices et sont logés à l'intérieur de ces orifices ;
  • l'adaptateur comprend des moyens de fixation complémentaires coopérant avec lesdits moyens de fixation d'adaptateur qui sont portés par ledit support ;
  • ces moyens de fixation complémentaires ou ces moyens de fixation d'adaptateur comprennent un ressort solidaire du support et de l'adaptateur et agencé de manière à plaquer ledit support contre ledit adaptateur ; ce ressort peut être une tige métallique ;
  • l'adaptateur est un adaptateur objet de l'invention, tel que précédemment décrit ;
  • le support comprend une partie saillante en forme de griffe logée entre deux ailettes de l'adaptateur ; cette griffe peut être agencée avec un jeu, elle sert alors uniquement de moyen de guidage lors du remplacement ; l'adaptateur peut également être en appui contre cette griffe, qui sert alors également de moyen de fixation d'adaptateur ;
  • ledit support comprend une partie saillante en forme de griffe et, ladite partie saillante comprenant l'articulation d'une tige métallique permettant la fixation dudit adaptateur auxdits moyens de fixation d'adaptateurs, ladite partie saillante comprenant l'articulation de la tige métallique ;
  • une tige métallique est articulée à une extrémité audit support, et une partie d'accrochage de la tige est accrochée à un moyen de fixation d'adaptateur porté par ledit support, ladite tige comprenant une portion de plaquage située entre l'extrémité articulée et ladite partie d'accrochage, la portion de plaquage étant en appui contre l'adaptateur, de manière à plaquer celui-ci contre ledit support ; il s'agit d'un mode de fixation simple permettant d'utiliser l'effet élastique ou ressort de la tige pour fixer en un seul mouvement de basculement et d'accrochage l'adaptateur au module ;
  • l'adaptateur présente des surfaces de contact plaquées en contact direct ou indirect avec des surfaces de contact du support ; le maintien est ferme ; pour renforcer davantage le maintien, ces surfaces de contact peuvent être planes ;
  • le module optique comprend un élément compressible et conducteur thermiquement, notamment une silicone chargée, situé entre ces surfaces de contact ;
  • ledit adaptateur étant en contact direct avec l'élément de déviation optique, de manière à ce que l'adaptateur s'indexe par rapport à l'élément de déviation optique selon un autre axe distinct des deux autres axes ; l'adaptateur étant ainsi indexé directement sur l'élément de déviation optique dans toutes les directions de l'espace ;
  • ces surfaces de contact sont en contact thermique direct ou indirect de sorte que l'adaptateur et ledit support de l'élément de déviation optique forment un dissipateur thermique unique ; le module est particulièrement efficace car la dissipation thermique est faite au plus près de la base de la source de lumière, ce qui est d'autant plus avantageux lorsque cette dernière est une DEL ;
  • le dissipateur thermique unique comprend des ailettes situées pour certaines sur l'adaptateur et pour d'autre sur ledit support ;
  • l'adaptateur comprend un connecteur connecté à la source lumineuse et dans lequel le support comprend également un connecteur, l'un des connecteurs étant enfiché dans l'autre ; l'agencement des deux connecteurs peut ainsi être tel que les connecteurs s'enfichent directement lorsqu'on positionne l'adaptateur et qu'on le fixe ;
The optical module according to the invention can also have, in addition to the main characteristics stated in the preceding paragraphs, one or more of the following additional characteristics:
  • said adapter indexing means are orifices and in which said complementary indexing means are a form complementary to the shape of this orifice and are housed inside this orifice;
  • said complementary indexing means are orifices and in which said adapter indexing means have a shape complementary to the shape of these orifices and are housed inside these orifices;
  • the adapter comprises complementary fixing means cooperating with said adapter fixing means which are carried by said support;
  • these complementary fixing means or these adapter fixing means comprise a spring integral with the support and the adapter and arranged so as to press said support against said adapter; this spring can be a metal rod;
  • the adapter is an adapter which is the subject of the invention, as described above;
  • the support comprises a protruding part in the form of a claw housed between two fins of the adapter; this claw can be arranged with a game, it then serves only as a guide means during replacement; the adapter may also bear against this claw, which then also serves as an adapter fixing means;
  • said support comprises a protruding part in the form of a claw and, said protruding part comprising the articulation of a metal rod allowing the fixing of said adapter to said means for fixing adapters, said protruding part comprising the articulation of the metal rod;
  • a metal rod is articulated at one end to said support, and a hooking portion of the rod is hooked to an adapter fixing means carried by said support, said rod comprising a plating portion located between the articulated end and said hooking part, the plating portion being pressed against the adapter, so as to press the latter against said support; it is a simple method of fixing allowing to use the effect elastic or spring of the rod to fix in a single movement of tilting and hooking the adapter to the module;
  • the adapter has plated contact surfaces in direct or indirect contact with contact surfaces of the support; the posture is firm; to further strengthen the support, these contact surfaces can be flat;
  • the optical module comprises a compressible and thermally conductive element, in particular a charged silicone, located between these contact surfaces;
  • said adapter being in direct contact with the optical deflection element, so that the adapter is indexed relative to the optical deflection element along another axis distinct from the other two axes; the adapter being thus indexed directly on the optical deflection element in all directions of space;
  • these contact surfaces are in direct or indirect thermal contact so that the adapter and said support of the optical deflection element form a single heat sink; the module is particularly effective because the heat dissipation is made as close as possible to the base of the light source, which is all the more advantageous when the latter is an LED;
  • the single heat sink comprises fins located some on the adapter and others on said support;
  • the adapter comprises a connector connected to the light source and in which the support also comprises a connector, one of the connectors being plugged into the other; the arrangement of the two connectors can thus be such that the connectors are plugged in directly when the adapter is positioned and fixed;

Dans les modules optiques ainsi que les adaptateurs selon l'invention, l'adaptateur peut comprendre plusieurs sources lumineuses.In the optical modules as well as the adapters according to the invention, the adapter can comprise several light sources.

Dans les modules optiques ainsi que les adaptateurs selon l'invention, la ou les source(s) lumineuse(s) peut(peuvent) être une ou des diode(s) électroluminescente(s). Les modules selon l'invention sont particulièrement adaptés à des DEL car :

  • ils permettent leur remplacement dans des encombrements restreints,
  • ils permettent un positionnement précis de la DEL par rapport à l'élément optique,
  • la fixation du réflecteur exerce moins de contrainte sur cet élément optique, la fixation se faisant sur un support distinct de l'élément optique,
  • selon les variantes de réalisation, ils permettent une bonne évacuation thermique de la chaleur dégagée par la ou les DEL.
In the optical modules as well as the adapters according to the invention, the light source (s) can (can) be one or more light-emitting diode (s). The modules according to the invention are particularly suitable for LEDs because:
  • they allow their replacement in restricted dimensions,
  • they allow precise positioning of the LED relative to the optical element,
  • the fixing of the reflector exerts less stress on this optical element, the fixing being done on a support separate from the optical element,
  • according to the variant embodiments, they allow good thermal evacuation of the heat given off by the LED (s).

Un autre objet de l'invention est un dispositif d'éclairage et/ou de signalisation de véhicule comprenant un module selon l'invention. Par exemple, il peut s'agir d'un projecteur, encore appelé phare de véhicule.Another object of the invention is a vehicle lighting and / or signaling device comprising a module according to the invention. For example, it may be a projector, also called a vehicle headlight.

Le module optique peut être un module d'éclairage, par exemple pour réaliser un faisceau d'éclairage ou un faisceau de croisement.The optical module can be a lighting module, for example to produce a lighting beam or a passing beam.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit, pour la compréhension de laquelle on se reportera aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en perspective d'un module optique avec son adaptateur selon un premier mode de réalisation de l'invention;
  • la figure 2 est une vue de l'objet de la figure 1 mais de derrière ;
  • la figure 3 est une vue en perspective du module optique de la figure 1 sans son adaptateur;
  • la figure 4 est une vue en perspective de l'adaptateur de la figure 1 sans le module optique;
  • les figure 5 montre le montage de l'adaptateur de la figure 4 dans le module de la figure 3 ;
  • la figure 6 est un agrandissement d'une partie de l'illustration de la figure 5, vu sous un autre angle;
  • la figure 6' est une section schématique représentant la zone d'indexation de l'adaptateur dans le module optique selon le premier mode de réalisation ;
  • la figure 7 est une vue en perspective arrière d'un module optique avec son adaptateur préfixé en position de remplacement selon un deuxième mode de réalisation de l'invention ;
  • la figure 8 est un zoom sur la figure 7 mais avec l'adaptateur fixé en position de fonctionnement ;
  • la figure 9 est une représentation schématique d'un module optique avec son adaptateur selon un troisième mode de réalisation de l'invention ;
  • la figure 10 est une représentation schématique d'un agencement possible des connecteurs du module optique et de l'adaptateur selon l'invention ;
  • la figure 11 est une représentation schématique d'une connexion du module optique à l'adaptateur selon l'invention ;
  • la figure 12 est une représentation schématique d'une variante d'une connexion du module optique à l'adaptateur selon l'invention.
Other characteristics and advantages of the invention will become apparent on reading the detailed description which follows, for the understanding of which reference is made to the appended drawings, in which:
  • the figure 1 is a perspective view of an optical module with its adapter according to a first embodiment of the invention;
  • the figure 2 is a view of the object of the figure 1 but from behind;
  • the figure 3 is a perspective view of the optical module of the figure 1 without its adapter;
  • the figure 4 is a perspective view of the adapter of the figure 1 without the optical module;
  • the figure 5 shows the mounting of the adapter of the figure 4 in the module of the figure 3 ;
  • the figure 6 is an enlargement of part of the illustration of the figure 5 , seen from another angle;
  • the figure 6 ' is a schematic section showing the indexing area of the adapter in the optical module according to the first embodiment;
  • the figure 7 is a rear perspective view of an optical module with its adapter prefixed in the replacement position according to a second embodiment of the invention;
  • the figure 8 is a zoom on the figure 7 but with the adapter fixed in the operating position;
  • the figure 9 is a schematic representation of an optical module with its adapter according to a third embodiment of the invention;
  • the figure 10 is a schematic representation of a possible arrangement of the connectors of the optical module and of the adapter according to the invention;
  • the figure 11 is a schematic representation of a connection of the optical module to the adapter according to the invention;
  • the figure 12 is a schematic representation of a variant of a connection of the optical module to the adapter according to the invention.

Les différents éléments apparaissant sur plusieurs figures auront, sauf précision contraire, la même référence. Par ailleurs, les éléments figurant sur plusieurs figures, ne seront pas systématiquement décrits ou cités à nouveau pour chaque figure.The various elements appearing in several figures will have the same reference, unless otherwise specified. Furthermore, the elements appearing in several figures will not be systematically described or cited again for each figure.

Les figures 1 à 12 représentent trois modes de réalisation selon l'invention. Ces illustrations sont des exemples de réalisation.The figures 1 to 12 show three embodiments according to the invention. These illustrations are examples of implementation.

Le module optique 10, 110 et 210, pour dispositif d'éclairage et/ou de signalisation pour véhicule automobile de l'invention comprend :

  • un premier élément de déviation optique 12, à savoir dans le cas de ces exemples un réflecteur 12
  • un support 20, 120, et 220, du réflecteur 12, le réflecteur 12 étant fixé audit support,
dans lequel ledit support 20, 120, et 220 comprend des moyens de fixation 26, 126 et 226, d'adaptateur aptes à fixer un adaptateur sur lequel est fixée une source de lumière ou à recevoir un élément de fixation de cet adaptateur, et dans lequel le réflecteur 12 comprend des moyens d'indexation 61, 62 d'adaptateur agencés de manière à être aptes à positionner cet adaptateur par rapport au réflecteur 12 selon deux axes distincts et sécants X, Y.The optical module 10, 110 and 210, for a lighting and / or signaling device for a motor vehicle of the invention comprises:
  • a first optical deflection element 12, namely in the case of these examples a reflector 12
  • a support 20, 120, and 220, of the reflector 12, the reflector 12 being fixed to said support,
wherein said support 20, 120, and 220 comprises fixing means 26, 126 and 226, adapter suitable for fixing an adapter on which is fixed a light source or for receiving a fixing element of this adapter, and in in which the reflector 12 comprises indexing means 61, 62 of adapter arranged so as to be able to position this adapter relative to the reflector 12 along two distinct and intersecting axes X, Y.

Selon ces modes de réalisation, les moyens d'indexation 61, 62, visibles en figures 3 et 6, sont des tenons 61, 62According to these embodiments, the indexing means 61, 62, visible in figures 3 and 6 , are tenons 61, 62

Le support 20, 120, et 220, est un dissipateur thermique et comprend:

  • un matériau apte à conduire la chaleur,
  • des surfaces de contact 66 comprenant une partie de ce matériau, de manière à transmettre la chaleur d'un élément qui serait au contact desdites surfaces de contact, comme par exemple les surfaces de contact 76 de l'adaptateur 70 illustré en figure 4.
Bracket 20, 120, and 220, is a heat sink and includes:
  • a material capable of conducting heat,
  • contact surfaces 66 comprising a part of this material, so as to transmit heat from an element which would be in contact with said contact surfaces, such as for example the contact surfaces 76 of the adapter 70 illustrated in figure 4 .

D'une manière générale, le support peut être un matériau monolithique, par exemple venu de matière en une seule pièce. Il peut être constitué essentiellement du matériau apte à conduire la chaleur. Le matériau apte à conduire la chaleur peut être en métal, notamment en aluminium.In general, the support can be a monolithic material, for example formed in one piece. It can consist essentially of the material capable of conducting heat. The material capable of conducting heat can be metal, in particular aluminum.

Tel qu'illustré, le support 20, 120, et 220, comprend des ailettes arrière 24 et 25, ou 124 et 125, situées à l'arrière dudit support et derrière l'élément de déviation optique 12 par rapport au sens de propagation R selon lequel l'élément de déviation optique est destiné à dévier les rayons. Le sens de propagation R, n'est représenté qu'en figure 1, mais est le même sur les différentes figures. Ce support forme donc un radiateur à ailettes 24 et 25, ou 124 et 125.As illustrated, the support 20, 120, and 220, comprises rear fins 24 and 25, or 124 and 125, located behind said support and behind the optical deflection element 12 with respect to the direction of propagation R wherein the optical deflection element is intended to deflect the rays. The direction of propagation R, is only represented figure 1 , but is the same in the different figures. This support therefore forms a finned radiator 24 and 25, or 124 and 125.

Ledit support 20, 120, et 220, comprend :

  • un jour 29 en vis-à-vis de l'élément de déviation optique 12, et visible sur la figure 3,
  • des ailettes de guidage 23, 123, de part et d'autres de ce jour 29, notamment parallèles entre elles,
  • des surfaces d'appui 66 entre ce jour 29 et ces ailettes de guidage 23, 123, les ailettes de guidage 23 ; 123 étant agencées de manière à permettre le guidage de l'adaptateur 70, 170, 270, pour le positionner en contact avec ces surfaces d'appui 66.
Said support 20, 120, and 220, comprises:
  • day 29 opposite the optical deflection element 12, and visible on the figure 3 ,
  • guide fins 23, 123, on either side of this day 29, in particular parallel to each other,
  • bearing surfaces 66 between this day 29 and these guide fins 23, 123, the guide fins 23; 123 being arranged so as to allow guiding of the adapter 70, 170, 270, to position it in contact with these bearing surfaces 66.

En effet, comme on peut le voir en figure 5 et 6, l'adaptateur selon l'invention a une largeur inférieure mais proche de la distance entre ces ailettes de guidage 23 ; 123, ce qui facilite le guidage et le positionnement lors du remplacement de l'adaptateur 70, 170, 270.Indeed, as can be seen in figure 5 and 6 , the adapter according to the invention has a width less than but close to the distance between these guide fins 23; 123, which facilitates guidance and positioning when replacing adapter 70, 170, 270.

Selon les exemples illustrés ces surfaces d'appui 66 sont les surfaces de contact. Elles ont donc la double fonction de contact thermique et mécanique.According to the examples illustrated, these bearing surfaces 66 are the contact surfaces. They therefore have the dual function of thermal and mechanical contact.

Dans ces exemples, le module optique est un module d'éclairage, par exemple pour réaliser un faisceau d'éclairage, par exemple un faisceau de croisement.In these examples, the optical module is a lighting module, for example to produce a lighting beam, for example a passing beam.

L'adaptateur 70, 170, 270 est agencé au niveau du jour 29 de manière à ce que la source de lumière 13 fixée dessus ait sa direction d'émission globale orientée vers la concavité du réflecteur 12. Ce dernier réfléchit les rayons lumineux émis par la source de lumière selon la direction de propagation R, parallèle à l'axe longitudinal X, dans les exemples illustrée, la direction de propagation R parallèlement à l'axe longitudinal X définissant ici la direction vers l'avant. La source de lumière 13 éclaire vers le bas.The adapter 70, 170, 270 is arranged at the level of the day 29 so that the light source 13 fixed above has its overall direction of emission oriented towards the concavity of the reflector 12. The latter reflects the light rays emitted by it. the light source in the direction of propagation R, parallel to the longitudinal axis X, in the examples illustrated, the direction of propagation R parallel to the longitudinal axis X here defining the forward direction. The light source 13 shines downwards.

Le support 20, 120, et 220, comprend ici deux plaques jointes globalement en forme de « L », par exemple environ à 90°, et comprend :

  • sur une première branche du « L » située à l'arrière du module, lesdites ailettes arrière, 24 et 25, 124 et 125,
  • sur une deuxième branche du « L » les ailettes de guidage 23.
The support 20, 120, and 220, here comprises two joined plates generally in the shape of an "L", for example approximately at 90 °, and comprises:
  • on a first branch of the “L” located at the rear of the module, said rear fins, 24 and 25, 124 and 125,
  • on a second branch of the "L" the guide vanes 23.

La deuxième branche peut comprendre d'autres ailettes, non représentées.The second branch can include other fins, not shown.

Les ailettes arrière 25, 125 comprennent un décrochement 25a, 125a agencé de manière à créer un espace dégagé d'ailettes 27, 127, à l'intérieur duquel se situe au moins une partie desdits moyens de fixation d'adaptateur 26, 126, 226, ici des paires de pattes en forme de griffe. Chaque patte comprend au moins une encoche apte à recevoir une tige métallique de fixation 90, 190, 290, de l'adaptateur 70, 170, 270.The rear fins 25, 125 include a recess 25a, 125a arranged so as to create a clear space of fins 27, 127, inside which is located at least part of said adapter fixing means 26, 126, 226 , here pairs of claw-shaped legs. Each tab comprises at least one notch suitable for receiving a metal fixing rod 90, 190, 290, of the adapter 70, 170, 270.

Dans ces exemples de réalisation, l'adaptateur 70 ; 170 ; 270 de source de lumière 13, comprend :

  • au moins une source de lumière 13,
  • un circuit imprimé 80, sur lequel est fixée et connectée la source de lumière 13,
  • des moyens de fixation complémentaires 90, 177, ou 277, aptes à permettre la fixation de l'adaptateur 70, 170, 270,
  • des moyens d'indexation complémentaires 71, 72 formés sur ledit circuit imprimé 80, agencés de manière à ce que lorsque sur le module optique un élément est positionné par rapport à ces moyens d'indexation complémentaires, l'adaptateur 70, 170, 270 est positionné par rapport à cet élément selon deux axes distincts et sécants, ici l'axe longitudinal X et transversal Y.
In these exemplary embodiments, the adapter 70; 170; 270 light source 13, includes:
  • at least one light source 13,
  • a printed circuit 80, on which is fixed and connected the light source 13,
  • additional fixing means 90, 177, or 277, capable of allowing the fixing of the adapter 70, 170, 270,
  • additional indexing means 71, 72 formed on said printed circuit 80, arranged so that when on the optical module a element is positioned relative to these complementary indexing means, the adapter 70, 170, 270 is positioned relative to this element along two distinct and intersecting axes, here the longitudinal X and transverse Y axis.

Ces moyens d'indexation complémentaires sont des orifices 71, 72, en particulier des trous traversant le circuit imprimé 80 de part en part.These additional indexing means are orifices 71, 72, in particular holes passing right through the printed circuit 80.

L'adaptateur 70, 170, 270 de source de lumière 13, comprend un bloc de support 73 sur lequel est fixé le circuit imprimé 80, et donc indirectement la source de lumière 13.The light source 13 adapter 70, 170, 270 comprises a support block 73 on which the printed circuit 80 is fixed, and therefore indirectly the light source 13.

Comme on peut le voir plus précisément en figure 4, la source de lumière 13 est une DEL comprenant un substrat 15 fixé au circuit imprimé 80, par exemple par des électrodes. Le substrat porte un élément semi-conducteur photoémissif 14.As can be seen more precisely in figure 4 , the light source 13 is an LED comprising a substrate 15 fixed to the printed circuit 80, for example by electrodes. The substrate carries a photoemissive semiconductor element 14.

Le bloc de support est un radiateur comprenant :

  • des ailettes 75, 175 ou 275, et étant agencé pour dissiper la chaleur dégagée par cette source de lumière,
  • des moyens de fixation complémentaires 90, 177, ou 277, aptes à permettre la fixation de l'adaptateur.
The support block is a radiator comprising:
  • fins 75, 175 or 275, and being arranged to dissipate the heat given off by this light source,
  • complementary fixing means 90, 177, or 277, able to allow the fixing of the adapter.

Selon l'invention d'une manière générale l'adaptateur ou le support peuvent porter une tige métallique articulée 90, 190, 290 qui va s'accrocher ou se plaquer respectivement sur le support ou l'adaptateur.According to the invention, in general, the adapter or the support can carry an articulated metal rod 90, 190, 290 which will hook or press down on the support or the adapter, respectively.

Ainsi selon le premier mode de réalisation illustré en figures 1 à 6, les ailettes 75 sur les bords de l'adaptateur 70 comprennent un trou au travers duquel passe l'extrémité 93 d'une tige 90. L'extrémité 93 de ladite tige métallique 90 est libre en rotation dans ce trou, de manière à former une articulation de la tige 90 sur ces deux ailettes. La tige est formée en une boucle non fermée. Deux extrémités 93 sont donc articulées. La boucle peut ainsi basculer vers le bas pour s'accrocher aux pattes de fixation 26 d'adaptateur formées sur le support 20, la portion accrochée de la boucle formant ainsi une partie de fixation 91.Thus according to the first embodiment illustrated in figures 1 to 6 , the fins 75 on the edges of the adapter 70 comprise a hole through which passes the end 93 of a rod 90. The end 93 of said metal rod 90 is free to rotate in this hole, so as to form an articulation of the rod 90 on these two fins. The rod is formed into an unclosed loop. Two ends 93 are therefore articulated. The buckle can thus swing downwards to hook onto the adapter fixing tabs 26 formed on the support 20, the hooked portion of the buckle thus forming a fixing part 91.

Le support comporte une partie saillante de guidage et de maintien 22 en forme de griffe.The support comprises a protruding guiding and holding portion 22 in the form of a claw.

Comme illustré en figures 5, 6 et 6', lorsque l'on met en place l'adaptateur 70 dans le module 10, l'adaptateur glisse sur les surfaces de contact 66 du support 20, guidé transversalement par les ailettes de guidage 23 du support. Il va glisser jusqu'à être bloqué par la patte saillante 22, qui vient se loger entre deux ailettes 75 de l'adaptateur 70 complétant ainsi le guidage. L'adaptateur peut ensuite être rabattu vers le bas de manière à ce que ses surfaces de contact 76, situées de part et d'autre du circuit imprimé, entre en contact avec les surfaces de contact 66 du module.As shown in figures 5, 6 and 6 ' , when the adapter 70 is placed in the module 10, the adapter slides on the contact surfaces 66 of the support 20, guided transversely by the guide fins 23 of the support. It will slide until it is blocked by the projecting tab 22, which is housed between two fins 75 of the adapter 70 thus completing the guidance. The adapter can then be folded down so that its contact surfaces 76, located on either side of the printed circuit, come into contact with the contact surfaces 66 of the module.

Les tenons 61, 62, vont rentrer dans les trous traversant 71, 72 et assurer l'indexage de la DEL 13 part rapport au réflecteur 12, notamment au niveau de son foyer.The tenons 61, 62, will enter the through holes 71, 72 and ensure the indexing of the LED 13 relative to the reflector 12, in particular at its focal point.

Comme on peut le voir en figure 6', le bloc de support comprend des cavités 74 en vis-à-vis des trous traversant 71, chaque trou traversant débouchant entièrement dans une cavité 74 qui lui est propre. Les tenons 61, 62 dépassent du circuit imprimé à l'intérieur de ces cavités. Ils n'ont donc pas besoin d'être dimensionnés exactement à la taille des trous dans le circuit imprimé.As can be seen in figure 6 ' , the support block comprises cavities 74 facing the through-holes 71, each through-hole opening entirely into a cavity 74 which is specific to it. The tenons 61, 62 protrude from the printed circuit inside these cavities. They therefore do not need to be sized exactly to the size of the holes in the PCB.

Une fois l'adaptateur positionné et plaqué au support, la tige 90 est rabattue vers la branche arrière du « L » du support 20 et vient s'accrocher aux pattes de fixation 26 d'adaptateur.Once the adapter has been positioned and pressed against the support, the rod 90 is folded down towards the rear branch of the “L” of the support 20 and hooks onto the fixing tabs 26 of the adapter.

L'adaptateur 70 est ainsi maintenu plaqué au support 20 d'un côté par la tige 90 et de l'autre par la patte 22.The adapter 70 is thus kept pressed against the support 20 on one side by the rod 90 and on the other by the tab 22.

Dans les autres modes de réalisation, le principe de montage de l'adaptateur 170, 270 est globalement le même, avec cependant les différences exposées ci-après.In the other embodiments, the principle of mounting the adapter 170, 270 is generally the same, with however the differences set out below.

La tige métallique 190, 290 est articulée d'un côté sur ledit support 120, 220, ladite tige comprenant de plus une portion de plaquage 195, 295 destinée à être fixée par plaquage à l'adaptateur, la tige étant agencée pour permettre une fixation en compression de l'adaptateur 170, 270 au module, en s'appuyant sur des surfaces d'appui 177, 277 de l'adaptateur.The metal rod 190, 290 is hinged on one side to said support 120, 220, said rod further comprising a plating portion 195, 295 intended to be fixed by plating to the adapter, the rod being arranged to allow fixing in compression of the adapter 170, 270 to the module, resting on the bearing surfaces 177, 277 of the adapter.

Dans le deuxième mode de réalisation, le trou traversant dans lequel s'articule l'extrémité 193 de la tige est agencé sur une ailette 123 du support 120 du réflecteur 12.In the second embodiment, the through hole in which the end 193 of the rod articulates is arranged on a fin 123 of the support 120 of the reflector 12.

Dans le troisième mode de réalisation, le trou traversant dans lequel s'articule l'extrémité 293 de la tige est agencé sur une partie saillante 222 distincte des ailettes.In the third embodiment, the through hole in which the end 293 of the rod articulates is arranged on a projecting part 222 distinct from the fins.

Dans ces différents mode de réalisation, la tige métallique 90, 190, 290, comprend une partie d'accrochage 91, 191, 291 venant en coopération avec une encoche 26a, 126a, 226a des moyens de fixation d'adaptateur 26, 126, 226.In these different embodiments, the metal rod 90, 190, 290, comprises a hooking part 91, 191, 291 coming in cooperation with a notch 26a, 126a, 226a of the adapter fixing means 26, 126, 226 .

La tige métallique 90, 190, 290 comprend une portion de préhension 94, 194, 294 en forme d'anse destinée à être saisie pour permettre le décrochement de ladite tige des moyens de fixation d'adaptateur, par exemple par préhension du doigt par un opérateur.The metal rod 90, 190, 290 comprises a gripping portion 94, 194, 294 in the shape of a handle intended to be gripped to allow the detachment of said rod from the adapter fixing means, for example by gripping the finger by a operator.

Dans le deuxième mode de réalisation et dans le troisième mode de réalisation, la portion de plaquage 195, 295 est située entre la partie d'accrochage 191, 291 et l'extrémité articulée 193, 293. Ainsi l'adaptateur 170, 270 est maintenu plaqué au support 120, 220 d'un côté par l'accrochage de la partie d'accrochage 191, 291 et de l'autre par la partie de fixation 195, 295.In the second embodiment and in the third embodiment, the plating portion 195, 295 is located between the hooking portion 191, 291 and the articulated end 193, 293. Thus the adapter 170, 270 is maintained. pressed against the support 120, 220 on one side by the hooking of the hooking part 191, 291 and on the other by the fixing part 195, 295.

Dans le deuxième mode de réalisation, lesdits moyens de fixation d'adaptateur 126 comprennent une autre encoche 126b apte à recevoir la tige métallique de fixation 190, de manière à ce que chaque encoche 126a, 126b définisse une position de fixation différente de la tige métallique. Ainsi comme illustré sur la figure 7, la tige est positionnée dans l'encoche intermédiaire 126b, permettant un pré-positionnement du module avant sa fixation définitive, par exemple pour l'ajuster correctement avant de le rabattre. Ensuite, la tige est placée dans l'encoche finale 126a pour fixer définitivement l'adaptateur 170 au module 120. Bien entendu, le terme « définitif » s'entend par définitif pour faire fonctionner le module et non pour toute la durée de vie du module, puisque selon l'invention cette attache est amovible pour permettre le remplacement de la source de lumière par retrait et remplacement de l'adaptateur.In the second embodiment, said adapter fixing means 126 comprise another notch 126b adapted to receive the metal fixing rod 190, so that each notch 126a, 126b defines a different fixing position of the metal rod. . So as shown on the figure 7 , the rod is positioned in the intermediate notch 126b, allowing a pre-positioning of the module before its final fixing, for example to adjust it correctly before folding it down. Then, the rod is placed in the final notch 126a to permanently fix the adapter 170 to the module 120. Of course, the term "definitive" is understood to mean definitive to operate the module and not for the entire service life of the module. module, since according to the invention this clip is removable to allow replacement of the light source by removing and replacing the adapter.

Comme on peut l'observer, selon l'invention, le bloc de support que comprend l'adaptateur 70, 170, 270 est un radiateur dont les ailettes 75, 175, 275 sont agencées pour dissiper la chaleur dégagée par la LED 13. Ceci est d'autant plus efficace qu'elles sont orientées vers le haut.As can be seen, according to the invention, the support block that the adapter 70, 170, 270 comprises is a radiator whose fins 75, 175, 275 are arranged to dissipate the heat given off by the LED 13. This is all the more effective when they are oriented upwards.

Dans les trois modes de réalisation, l'adaptateur 70, 170, 270 comprend un connecteur 82, 182, ou 282, connecté à la DEL 13 et le support 20, 120, et 220, comprend également un connecteur 82, 182.In all three embodiments, the adapter 70, 170, 270 includes a connector 82, 182, or 282, connected to the LED 13 and the socket 20, 120, and 220, also includes a connector 82, 182.

Comme illustré en figure 10, selon l'invention, ces connecteurs sont agencés l'un au-dessus de l'autre lorsque l'adaptateur 70 est positionné dans le support, de manière à ce que lors du montage le simple fait de rabattre l'adaptateur contre le module va enficher les connecteurs l'un dans l'autre.As shown in figure 10 , according to the invention, these connectors are arranged one above the other when the adapter 70 is positioned in the support, so that during assembly the simple fact of folding the adapter against the module will plug the connectors into each other.

Comme illustré en figure 11, le connecteur 382 de l'adaptateur 70 peut comprendre des broches de connexion 384, 385, le connecteur 502 du support se branchant par enfichage de ses broches 504, 404, entre celles du connecteur de l'adaptateur.As shown in figure 11 , the connector 382 of the adapter 70 may include connection pins 384, 385, the connector 502 of the support being connected by plugging its pins 504, 404, between those of the connector of the adapter.

Comme illustré en figure 12, les broches du connecteur du support 20 comportent des lames 516 montées sur des parties plus rigides 514 entre lesquelles s'enfiche la broche centrale du connecteur de l'adaptateur, les parties rigides 514 se logent entre les parois 484 du connecteur de l'adaptateur 70. Les parties rigides 514 sont reliées au support 20 par l'intermédiaire de ressort 518 permettant de diminuer les tolérances de dimension pour le montage lors de la fixation de l'adaptateur 70.As shown in figure 12 , the pins of the connector of the support 20 comprise blades 516 mounted on more rigid parts 514 between which the central pin of the adapter connector is plugged, the rigid parts 514 are housed between the walls 484 of the adapter connector 70. The rigid parts 514 are connected to the support 20 by means of a spring 518 making it possible to reduce the dimensional tolerances for the assembly when fixing the adapter 70.

Selon un mode de réalisation, les surfaces de contact 76 de l'adaptateur 66 et du support sont en contact direct. L'élément optique présentant un jeu selon un axe perpendiculaire à la tangente à ces surfaces, soit selon l'axe vertical Z dans les modes de réalisation illustrés. Ainsi, selon cet axe l'agencement se fait selon le support. Ce jeu peut par exemple être compris entre 0,1 et 2 mm, préférentiellement entre 0,5 et 1 mm, préférentiellement 0,5 mm.According to one embodiment, the contact surfaces 76 of the adapter 66 and of the support are in direct contact. The optical element exhibiting play along an axis perpendicular to the tangent to these surfaces, ie along the vertical axis Z in the embodiments shown. Thus, along this axis the arrangement is made according to the support. This clearance may for example be between 0.1 and 2 mm, preferably between 0.5 and 1 mm, preferably 0.5 mm.

Selon une variante de réalisation, les surfaces de contact 66 du support et/ou les surfaces de contact 76 de l'adaptateur sont recouvertes par un élément compressible et conducteur thermiquement, notamment une silicone chargée, par exemple une silicone PAD 900. Cet élément compressible peut avoir une épaisseur d'environ 229 µm. L'adaptateur est en contact direct avec l'élément optique 12, de manière à ce que l'adaptateur 70, 170, 270 s'indexe par rapport à l'élément optique 12 selon l'axe vertical Z.According to an alternative embodiment, the contact surfaces 66 of the support and / or the contact surfaces 76 of the adapter are covered by a compressible and thermally conductive element, in particular a silicone. filled, for example a PAD 900 silicone. This compressible element may have a thickness of approximately 229 μm. The adapter is in direct contact with the optical element 12, so that the adapter 70, 170, 270 is indexed relative to the optical element 12 along the vertical axis Z.

On voit ici que dans ces trois modes de réalisation les surfaces de contact 66 et 76 sont en contact thermique direct ou indirect de sorte que l'adaptateur 70, 170, 270 et ledit support 20, 120, 220 de l'élément optique 12 forment un dissipateur thermique unique, les ailettes étant situées pour certaines - 75, 23, 24, 25; 175, 123, 124, 125 ; 275, 223, 224, 225 - sur l'adaptateur 70, 170, 270 et pour d'autre sur le support 20, 120, 220.It can be seen here that in these three embodiments the contact surfaces 66 and 76 are in direct or indirect thermal contact so that the adapter 70, 170, 270 and said support 20, 120, 220 of the optical element 12 form a single heat sink, some of the fins are located - 75, 23, 24, 25; 175, 123, 124, 125; 275, 223, 224, 225 - on the adapter 70, 170, 270 and for others on the support 20, 120, 220.

On a ainsi un radiateur permettant d'évacuer la chaleur directement depuis la base de la LED 13, et une surface d'échange étendue.There is thus a radiator making it possible to evacuate the heat directly from the base of the LED 13, and an extended exchange surface.

Claims (17)

  1. Optical module (10; 110; 210) for a lighting and/or signalling device for a motor vehicle comprising :
    - a first optical deflection element (12),
    - a holder (20; 120; 220) for this optical deflection element (12), said first optical deflection element (12) being attached to said holder,
    wherein said holder (20; 120; 220) comprises adapter fixing means (26; 126; 226) adapted to fix an adapter to which a light source is attached or to receive a fixing member thereof,
    - an adapter (70; 170; 270) attached to said optical deflection element holder (20; 120; 220) via said adapter fixing means (26; 126; 226), the adapter (70; 170; 270) comprising a support block (73);
    - at least one light source (13) fixed directly or indirectly to said adapter and emitting light rays towards said first optical deflection element (12), said holder (20; 120; 220) being arranged to let these light rays pass,
    wherein said holder (20; 120; 220) comprises :
    - a day opposite the optical deflection element (12),
    - guide vanes (23; 123) on both sides of this day,
    - bearing surfaces (66) between this day and these guide vanes (23; 123), said guide vanes (23; 123) being arranged so as to allow the adapter support block (73) of the width close to the distance between these guide vanes to be guided to position it in contact with these bearing surfaces (66),
    characterized in that:
    - said first optical deflection element (12) comprises adapter indexing means (61, 62);
    - said adapter (70; 170; 270) comprises complementary indexing means (71, 72) cooperating with said adapter indexing means (61, 62) so that said adapter (70; 170; 270) and the first optical deflection element (12) are positioned relative to each other along two distinct and intersecting axes (X, Y).
  2. Optical module (10; 110; 210) according to claim 1, wherein the means for indexing said holder (20; 120; 220) comprise orifices and/or tenons (61, 62).
  3. Optical module (10; 110; 210) according to claim 1 or 2, wherein said holder (20; 120; 220) is a heat sink and comprises:
    - a material capable of conducting heat,
    - bearing surfaces (66) comprising a portion of said material, so as to transmit heat from an element which would be in contact with said bearing surfaces (66).
  4. Optical module (10; 110; 210) according to claim 3, wherein said holder (20; 120; 220) comprises rear fins (24, 25; 124, 125) located at the rear of said holder and behind the optical deflection element (12) with respect to the direction of propagation (R) in which the optical deflection element is intended to deflect the rays.
  5. Optical module (10) according to one of claims 1 to 4, wherein the holder also comprises a connector (82; 182) for connection to the power supply of a vehicle on the one hand and to a light source on the other hand.
  6. Optical module (10; 110; 210) according to one of claims 1 to 5, wherein said adapter fixing means (26; 126; 226) comprises at least one tab (26; 126; 226) with at least one notch (26a; 126a; 226a) adapted to receive a metal fixing rod.
  7. Optical module (110) according to claim 6, wherein said adapter fixing means (126) comprises a further notch (126b) adapted to receive a metal fixing rod, such that each notch (126a, 126b) defines a different attachment position of the metal rod.
  8. Optical module (110; 210) according to one of claims 1 to 7, wherein said holder comprises a metal rod (190; 290) hinged on one side to said holder (120; 220), said rod further comprising an attachment portion for attachment to the adapter, the rod being arranged to allow compressive attachment to the module.
  9. Optical module (10; 110; 210) according to one of claims 1 to 7, wherein the adapter comprises a metal rod (90) hinged on one side to said adapter (70), said rod further comprising an attachment portion for attachment to an element, such as an optical module, said rod being arranged to allow compressive attachment of the adapter to that element.
  10. Optical module (10; 110; 210) according to claim 9, wherein the joint comprises a through hole, within which one end of said metal rod (90) is free to rotate.
  11. Optical module (10; 110; 210) according to claim 9 or 10, wherein the articulation is arranged on a wing (75) of said adapter (70) or on a projecting part (22) distinct from the wings (75) of the adapter.
  12. Optical module (10) according to claim 3, wherein said bearing surfaces are the contact surfaces (66), wherein the contact surfaces (66) and/or bearing surfaces (66) are covered by a compressible and thermally conductive element, in particular a filled silicone.
  13. Optical module (10; 110; 210) according to one of claims 1 or 3 to 12, wherein the adapter comprises :
    - a printed circuit board (80), on which the light source (13) is fixed and connected,
    - complementary fixing means (90, 177, 277) suitable for fixing the adapter (70; 170; 270),
    - the complementary indexing means (71, 72) being formed on said printed circuit board (80),
    wherein said complementary indexing means are orifices (71,72).
  14. Optical module (10; 110; 210) according to claim 13, wherein the printed circuit board (80) is fixed on the support block (73) of the adapter (70; 170; 270), said holes being through holes passing through the printed circuit board (80), said support block comprising cavities (74) facing the through holes (71, 72), each through hole opening entirely into a cavity (74) of its own.
  15. Optical module (10; 110; 210) according to one of the preceding claims wherein the light source (13) is a light-emitting diode.
  16. Optical module (10) according to one of the preceding claims, wherein said holder comprises a claw-shaped protrusion (22) housed between two wings (75) of the adapter (70).
  17. Optical module (10; 110; 210) according to one of claims 1 to 16, wherein the adapter (70; 170; 270) comprises a connector (82; 182; 282) connected to the light source (13) and wherein the holder (20; 120; 220) also comprises a connector (382), one of the connectors being plugged into the other.
EP13795804.7A 2012-11-30 2013-11-28 Motor vehicle lighting and/or signalling device Active EP2926052B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1261519A FR2998943B1 (en) 2012-11-30 2012-11-30 LIGHTING AND / OR SIGNALING DEVICE FOR MOTOR VEHICLE
PCT/EP2013/075004 WO2014083122A1 (en) 2012-11-30 2013-11-28 Motor vehicle lighting and/or signalling device

Publications (2)

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EP2926052A1 EP2926052A1 (en) 2015-10-07
EP2926052B1 true EP2926052B1 (en) 2020-09-02

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EP13795804.7A Active EP2926052B1 (en) 2012-11-30 2013-11-28 Motor vehicle lighting and/or signalling device

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US (1) US9605826B2 (en)
EP (1) EP2926052B1 (en)
CN (1) CN104903645B (en)
FR (1) FR2998943B1 (en)
WO (1) WO2014083122A1 (en)

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Publication number Publication date
CN104903645A (en) 2015-09-09
US20150338049A1 (en) 2015-11-26
EP2926052A1 (en) 2015-10-07
FR2998943B1 (en) 2018-07-13
US9605826B2 (en) 2017-03-28
FR2998943A1 (en) 2014-06-06
CN104903645B (en) 2019-03-15
WO2014083122A1 (en) 2014-06-05

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