EP2846079B1 - Lighting module for an illumination and/or signalling device - Google Patents

Lighting module for an illumination and/or signalling device Download PDF

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Publication number
EP2846079B1
EP2846079B1 EP14183832.6A EP14183832A EP2846079B1 EP 2846079 B1 EP2846079 B1 EP 2846079B1 EP 14183832 A EP14183832 A EP 14183832A EP 2846079 B1 EP2846079 B1 EP 2846079B1
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EP
European Patent Office
Prior art keywords
seat
heat sink
tongue
wall
reflector
Prior art date
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EP14183832.6A
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German (de)
French (fr)
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EP2846079A1 (en
Inventor
Eric Mornet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
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Valeo Vision SAS
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Publication of EP2846079A1 publication Critical patent/EP2846079A1/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/47Passive cooling, e.g. using fins, thermal conductive elements or openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141Light emitting diodes [LED]
    • F21S41/147Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148Light 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19Attachment of light sources or lamp holders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/49Attachment of the cooling means

Definitions

  • the present invention relates to a light module comprising a light source associated with a radiator fixed on a reflector, the radiator being arranged in contact with the light source for dissipation of the radiation heat emitted by the latter during its activation.
  • the light source is disposed substantially at the focus of the reflector, this reflector being formed by several sectors, each being of paraboloidal shape.
  • the light source advantageously comprises at least one light-emitting diode.
  • the light-emitting diode is generally carried directly by a printed circuit connected to an energy source and to control means, in particular external to the light-emitting diode.
  • the positioning of the light source relative to the first focus of the reflector is an operation which requires significant precision, often carried out using several screws.
  • a light module comprising a light source carried by a radiator body fixed on a seat provided on a reflector.
  • the seat comprises a receiving surface of an external face of the radiator body with the light source, and a referencing wall extending substantially perpendicular to the reception surface by cooperating with a bearing wall provided on the body of radiator.
  • the referencing wall extends substantially perpendicular to the outer face of the radiator body, the support wall is connected to the referencing wall of the seat by fixing means applying them one against the other for positioning the light source relative to the reflector.
  • the seat provided on the latter further comprises guide and indexing means used during assembly of the radiator body carrying the light source on the seat of the reflector.
  • the means for fixing the radiator body to the reflector comprise at least one fixing member, generally a screw.
  • An object of the invention is to provide a light module in which the positioning of the light source on the reflector is free of play, in order to avoid tolerances detrimental to the optical performance of the module, and the position of which this source of light is guaranteed both during assembly and during the use of the light module in a lighting and / or signaling device.
  • Another object of the invention is to provide easy mounting of the radiator - light source assembly on the reflector.
  • An object of the invention is a light module for a lighting and / or signaling device, in which a light source is mounted on a radiator body, and in which a reflector is provided with a seat for fixing the radiator body to the reflector, said seat comprising a receiving surface and a referencing wall at least part of which extends substantially perpendicularly to said receiving surface, a support wall being provided at one end of the radiator body, at least one part of the support wall extending substantially perpendicularly thereto, said support wall of the radiator body being fixed to said seat referencing wall by fixing means, characterized in that said support wall of the radiator body is extended by a tongue held in abutment against an inclined surface of said seat referencing wall.
  • the fixing means apply, at least partially, the bearing wall against the referencing wall, so as to ensure the referencing of the light source relative to the reflector in a predetermined position.
  • the tongue bears against the inclined surface, then is held against this inclined surface by means of fasteners so as to press the radiator body against said receiving surface of the seat of the reflector.
  • the tongue can be inclined relative to the support wall, that is to say that the support wall and the tongue form a non-zero angle.
  • Another object of the invention is a lighting and / or signaling device comprising a light module according to the invention.
  • the figure 1 shows in a partial perspective view of a reflector 1 of a light module according to the invention.
  • the reflector has a reflecting surface 2 surmounted by an L-shaped seat 3 adapted to receive a radiator 4 on which is fixed a support 5 of a light source 6 (see figure 3 ).
  • the L-shaped seat 3 is composed of a reception surface 7 of an external face of the radiator 4 with the support 5 of the light source 6, and of a reference wall 8 extending substantially perpendicularly to the surface of reception 7.
  • the referencing wall 8 is used for positioning the radiator 4 and therefore also the support 5 with the light source 6 relative to the reflector.
  • the referencing wall 8 is able to cooperate with a support wall 9 disposed at one end of the radiator 4 extending substantially perpendicular to the outer face of the latter.
  • the radiator 4 comprises a radiator body 10 formed by a generally rectangular plate to which fins 11 are connected so as to extend on either side of the plate 10. In order not to protrude on the sides, all the fins 11 are bent by 90 ° in the same direction, on both sides other of the radiator body 10.
  • the light source 6 is a light-emitting diode and its support 5 is a printed circuit.
  • This circuit is on a front edge provided with two generally semi-circular recesses 12 which, during assembly of the radiator body with the reflector, cooperate with two referencing projections 13 provided on the referencing wall 8 of the seat 3 of the reflector 1 and having a complementary rounded shape.
  • halogen lamp or a discharge lamp known as a "Xenon lamp”.
  • the radiator body 10 has immediately before the support wall 9 a recess 14 forming a housing for an electrical connector 15 disposed on the printed circuit 5 and ensuring the control and power connections of the light module.
  • the support wall 9 of the radiator 4 is simply an extension of the rectangular plate 10 folded by 90 ° relative to the latter and forms with two lateral wings 16 folded 90 ° relative to the support wall U-shaped, seen from above.
  • these two lateral wings will be placed on either side of the referencing wall 8 to act as guide means.
  • the side wings 16 also contribute to the dissipation of heat.
  • the printed circuit 5 is during assembly of the radiator 4 on the reflector 1 guided in a central groove 17 in the receiving surface 7 of the seat 3.
  • the central groove 17 has substantially the same width as that of the circuit, increased by a slight clearance allowing the circuit to slide in the central groove 17 during assembly.
  • pins 18 are provided on the external face of the printed circuit to cooperate with holes (not shown) provided on the reception area 7 of the seat 3.
  • the radiator 4 is fixed to the seat 3 of the reflector 1 by fixing means.
  • these fixing means comprise a fixing hole 19 provided in the reference wall 8 of the seat 3.
  • This fixing hole 19 must be aligned with a fixing hole 20 provided in said bearing wall 9 of the radiator 4 in order to receive a fixing member in the form of a screw 21 (see figure 7 ) for fixing the radiator 4 to the seat 3 of the reflector 1.
  • the support wall 9 of the radiator 4 is under the effect of the screwing of the screw 21 brought close to the referencing wall 8 until the wall support is firmly applied against it. In this position, the light source must be correctly positioned relative to the reflector.
  • the support wall 9 of the radiator 4 is extended by a tongue inclined at the rear 22 and able to come into contact, during assembly, against an inclined surface 23 at one end of the referencing wall 8 of the seat 3 of the reflector 1 so as to press the outer face of the radiator body 10 against the receiving surface 7 from seat 3 to reflector 1.
  • the bearing wall 9 of the radiator body 10 is capable of deforming when the tongue 22 is pressed against the inclined surface 23 of the referencing wall 8 during assembly of the module.
  • the rigidity of the seat 3 and more particularly of the inclined surface 23 is greater than the rigidity of the radiator body 10 and more particularly of the tongue 22. In this way, when the tongue 22 comes to bear against the inclined surface 23 , it is the tongue 22 which will deform and not the inclined surface 23 so as to guarantee that the light source 6 is kept in position.
  • the seat 3 comprises stiffening means 29 in the form of two stiffening ribs 29, arranged on either side of the sides of the referencing wall 8 and whose thickness is greater than that of the rest of the wall 8.
  • the radiator body 10 comprises a softening means 30 in the form of a neck 30 formed at the fold of the tongue 22, and whose thickness is substantially less than that of the rest of the body 10.
  • the radiator body 10 is made with a more rigid material, for example aluminum, than that used for the reflector 1, for example polyester resin.
  • the radiator is made of weakly hardened aluminum.
  • the inclination of the inclined surface 23 of the referencing wall 8 is identical to that of the inclined tongue 22 of the bearing wall.
  • the inclined surface 23 of the referencing wall 8 of the seat 3 ends in a part 24 of the tongue 22 extending substantially parallel to the receiving surface 7 of the seat.
  • the tongue 22 of the radiator body 10 is, by two parallel slots 25, divided into a central part 22 'and two lateral parts 22 ".
  • the central part 22' that the tongue 22 has a lower inclination than that of the lateral parts 22 "so as to pre-position the radiator body 10 when it is assembled with the reflector 1.
  • the central part 22 'of the tongue 22 advantageously has a reduced width compared to that of the lateral parts 22 "so as to be more easily deformable during a first phase of assembly.
  • the fixing hole 19 provided in the support wall 9 of the radiator body 10 is advantageously disposed in the center of a lug 26 of generally circular shape cut in the support wall in order to take up play during the assembly of the radiator body 10 on the reflector 1.
  • the fixing member may include a tab 27 (see Figures 8 and 9 ) provided on the support wall 9 of the radiator body 10.
  • This tongue 27 extends substantially perpendicular to the support wall 9 and is capable of being inserted in a slot-shaped fixing hole 28 provided in the wall referencing 8 of the seat 3.
  • the tongue 27 has at its free end a fin 31 able to be pivoted axially relative to the axis of the tongue 27.
  • the fixing is obtained by a simple rotation of a quarter turn of the 'fin 31 which causes twisting deformation of the tongue 27.
  • the tongue 27 may have at its free end two legs 32 separated from a slot, the legs 32 being able to be moved radially relative to the axis of the tongue.
  • the fixing is obtained by spreading the two tabs 32 from one another, which causes deformation by traction of the tongue 27.
  • the method of assembling the light module according to the invention is simple, quick to implement, and allows very precise positioning of the light source relative to the reflector. It suffices to place the radiator body 10 on which is fixed the support 5 of the light source on the seat 3 of the reflector 1 by sliding it towards the referencing wall 8 of the seat 3 of the reflector until the tongue 22 of the support wall 9 of the radiator body 10 comes into contact with the inclined surface 23 of the referencing wall 8 of the seat 3. Next, the means for fixing the radiator body to the reflector are put in place and a fixing member 21 is actuated to bring the support wall 9 closer to the radiator body 10 to the referencing wall 8 of the reflector 1.
  • the central part 22' When the tongue 22 is in three parts 22 ', 22 ", the central part 22' is first placed in abutment against the inclined surface 23 of the referencing wall 8 of the seat 3 so as to reach a position for prepositioning the body of the radiator 10 on the seat 3 of the reflector 1. In this prepositioning position, the support wall 9 of the radiator body 10 is located at a distance of approximately 1 mm from the referencing wall 8 of the seat 3.

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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)
  • Led Device Packages (AREA)

Description

Les documents EP 1 617 131 A2 et JP 2012-216348 A décrivent des modules lumineux connus pour dispositifs d'éclairage.The documents EP 1 617 131 A2 and JP 2012-216348 A describe known light modules for lighting devices.

La présente invention concerne un module lumineux comprenant une source de lumière associée à un radiateur fixé sur un réflecteur, le radiateur étant disposé au contact de la source de lumière pour la dissipation de la chaleur de radiation émise par celle-ci pendant son activation. La source de lumière est disposée sensiblement au foyer du réflecteur, ce réflecteur étant formé par plusieurs secteurs, chacun étant de forme paraboloïdale.The present invention relates to a light module comprising a light source associated with a radiator fixed on a reflector, the radiator being arranged in contact with the light source for dissipation of the radiation heat emitted by the latter during its activation. The light source is disposed substantially at the focus of the reflector, this reflector being formed by several sectors, each being of paraboloidal shape.

La source de lumière comprend avantageusement au moins une diode électroluminescente. La diode électroluminescente est en général portée directement par un circuit imprimé relié à une source d'énergie et à des moyens de commande, notamment extérieurs de la diode électroluminescente.The light source advantageously comprises at least one light-emitting diode. The light-emitting diode is generally carried directly by a printed circuit connected to an energy source and to control means, in particular external to the light-emitting diode.

Le positionnement de la source de lumière par rapport au premier foyer du réflecteur est une opération qui nécessite une précision importante, souvent réalisée à l'aide de plusieurs vis.The positioning of the light source relative to the first focus of the reflector is an operation which requires significant precision, often carried out using several screws.

On connaît un module lumineux comprenant une source de lumière portée par un corps de radiateur fixé sur un siège prévu sur un réflecteur. Le siège comprend une surface de réception d'une face extérieure du corps de radiateur avec la source de lumière, et une paroi de référencement s'étendant sensiblement perpendiculairement à la surface de réception en coopérant avec une paroi d'appui prévue sur le corps de radiateur. La paroi de référencement s'étend sensiblement perpendiculairement à la face extérieure du corps de radiateur dont la paroi d'appui est reliée à la paroi de référencement du siège par des moyens de fixation les appliquant l'une contre l'autre pour le positionnement de la source de lumière par rapport au réflecteur.A light module is known comprising a light source carried by a radiator body fixed on a seat provided on a reflector. The seat comprises a receiving surface of an external face of the radiator body with the light source, and a referencing wall extending substantially perpendicular to the reception surface by cooperating with a bearing wall provided on the body of radiator. The referencing wall extends substantially perpendicular to the outer face of the radiator body, the support wall is connected to the referencing wall of the seat by fixing means applying them one against the other for positioning the light source relative to the reflector.

Pour le positionnement exact du corps de radiateur par rapport au réflecteur, le siège prévu sur celui-ci comporte en outre des moyens de guidage et d'indexation utilisés lors de l'assemblage du corps de radiateur portant la source de lumière sur le siège du réflecteur.For the exact positioning of the radiator body relative to the reflector, the seat provided on the latter further comprises guide and indexing means used during assembly of the radiator body carrying the light source on the seat of the reflector.

Les moyens de fixation du corps de radiateur sur le réflecteur comportent au moins un organe de fixation, en générale une vis.The means for fixing the radiator body to the reflector comprise at least one fixing member, generally a screw.

Un but de l'invention est de proposer un module lumineux dans lequel le positionnement de la source de lumière sur le réflecteur est sans jeu, afin d'éviter des tolérances préjudiciables à la performance optique du module, et dont la position de cette source de lumière est garantie aussi bien pendant l'assemblage que pendant l'utilisation du module lumineux dans un dispositif d'éclairage et/ou de signalisation.An object of the invention is to provide a light module in which the positioning of the light source on the reflector is free of play, in order to avoid tolerances detrimental to the optical performance of the module, and the position of which this source of light is guaranteed both during assembly and during the use of the light module in a lighting and / or signaling device.

Un autre but de l'invention est de proposer un montage aisé de l'ensemble radiateur - source de lumière sur le réflecteur.Another object of the invention is to provide easy mounting of the radiator - light source assembly on the reflector.

Un objet de l'invention, tel que définit dans la revendication 1, est un module lumineux pour un dispositif d'éclairage et/ou de signalisation, dans lequel une source de lumière est montée sur un corps de radiateur, et dans lequel un réflecteur est pourvu d'un siège pour la fixation du corps de radiateur sur le réflecteur, ledit siège comportant une surface de réception et une paroi de référencement dont au moins une partie s'étend sensiblement perpendiculairement à ladite surface de réception, une paroi d'appui étant prévue à une extrémité du corps de radiateur, au moins une partie de la paroi d'appui s'étendant sensiblement perpendiculairement à celui-ci, ladite paroi d'appui du corps de radiateur étant fixée à ladite paroi de référencement du siège par des moyens de fixation, caractérisé en ce que ladite paroi d'appui du corps de radiateur est prolongée par une languette maintenue en appui contre une surface inclinée de ladite paroi de référencement du siège.An object of the invention, as defined in claim 1, is a light module for a lighting and / or signaling device, in which a light source is mounted on a radiator body, and in which a reflector is provided with a seat for fixing the radiator body to the reflector, said seat comprising a receiving surface and a referencing wall at least part of which extends substantially perpendicularly to said receiving surface, a support wall being provided at one end of the radiator body, at least one part of the support wall extending substantially perpendicularly thereto, said support wall of the radiator body being fixed to said seat referencing wall by fixing means, characterized in that said support wall of the radiator body is extended by a tongue held in abutment against an inclined surface of said seat referencing wall.

Les moyens de fixations appliquent, au moins partiellement, la paroi d'appui contre la paroi de référencement, de manière à assurer le référencement de la source de lumière par rapport au réflecteur dans une position prédéterminée.The fixing means apply, at least partially, the bearing wall against the referencing wall, so as to ensure the referencing of the light source relative to the reflector in a predetermined position.

Lors de l'assemblage du module lumineux, c'est-à-dire de l'assemblage du corps de radiateur, sur lequel est montée, directement ou indirectement, la source de lumière, avec le réflecteur, la languette vient en appui contre la surface inclinée, puis est maintenue contre cette surface inclinée grâce aux moyens de fixations de manière à plaquer le corps de radiateur contre ladite surface de réception du siège du réflecteur. Grâce à l'invention, il est ainsi possible de garantir un positionnement isostatique de la source de lumière par rapport au réflecteur pendant l'assemblage et l'utilisation du module lumineux.During the assembly of the light module, that is to say of the assembly of the radiator body, on which is mounted, directly or indirectly, the light source, with the reflector, the tongue bears against the inclined surface, then is held against this inclined surface by means of fasteners so as to press the radiator body against said receiving surface of the seat of the reflector. Thanks to the invention, it is thus possible to guarantee an isostatic positioning of the light source relative to the reflector during assembly and use of the light module.

La languette peut être inclinée par rapport à la paroi d'appui, c'est-à-dire que la paroi d'appui et la languette forment un angle non nul.The tongue can be inclined relative to the support wall, that is to say that the support wall and the tongue form a non-zero angle.

Selon d'autres caractéristiques du module lumineux selon l'invention :

  • la paroi d'appui et/ou la languette du corps de radiateur est apte à se déformer lors de l'appui de la languette contre la surface inclinée de la paroi de référencement lors de l'assemblage du module ;
  • la rigidité du siège est supérieure à la rigidité du corps de radiateur. Cette caractéristique offre l'avantage de garantir que, lorsque la languette vient en appui contre la surface inclinée, c'est la languette qui se déformera et non la surface inclinée de façon à garantir le maintien en position de la source de lumière.
  • le siège comporte au moins un moyen de rigidification et/ou le corps de radiateur comporte au moins un moyen d'assouplissement. Cette caractéristique offre l'avantage de pouvoir réaliser le corps de radiateur avec un matériau plus rigide, par exemple de l'aluminium, que celui utilisée pour le réflecteur, par exemple en résine de polyester. Il est ainsi possible d'avoir un corps de radiateur répondant à des contraintes thermiques élevées tout en garantissant un siège plus rigide que le corps de radiateur. Par exemple, le siège peut présenter de part et d'autre de la paroi de référencement des nervures de rigidification dont l'épaisseur est supérieure à celle du reste de la paroi. Dans un autre exemple, le corps de radiateur, notamment la languette, peut présenter un ou des strictions d'épaisseur sensiblement inférieure, notamment de plus de 25%, voire de 75%, à celle du reste du corps.
  • l'inclinaison de la surface inclinée de ladite paroi de référencement du siège est, avant assemblage, identique à celle de ladite languette de ladite paroi d'appui du corps de radiateur;
  • le matériau du corps de radiateur est de l'aluminium faiblement écroui ;
  • ladite surface inclinée de ladite paroi de référencement du siège se termine par une partie s'étendant sensiblement parallèlement à ladite surface de réception de celui-ci ;
  • ladite languette du corps de radiateur est, par deux fentes parallèles, divisée en une partie centrale et deux parties latérales ;
  • la partie centrale de la languette présente une inclinaison plus faible que celle des parties latérales. De cette façon, il est possible d'effectuer un prépositionnement du corps de radiateur lors de son assemblage avec le réflecteur ;
  • ladite partie centrale de ladite languette présente une largeur réduite par rapport à celle desdites parties latérales ;
  • lesdits moyens de fixation comprennent un trou de fixation prévu dans ladite paroi de référencement dudit siège, un trou de fixation prévu dans ladite paroi d'appui du corps de radiateur, notamment aligné avec le trou prévu dans la paroi de référencement, et un organe de fixation traversant les deux trous pour la fixation du corps de radiateur sur le siège du réflecteur;
  • ledit trou de fixation prévu dans ladite paroi d'appui du corps de radiateur est disposé au centre d'une patte découpée dans celle-ci. Cette caractéristique offre l'avantage de pouvoir effectuer un rattrapage de jeu lors de l'assemblage du corps de radiateur sur le réflecteur ;
  • ledit organe de fixation comporte une vis passant par le trou de fixation prévu dans la paroi d'appui du corps de radiateur et par le trou de fixation prévu dans la paroi de référencement dudit siège du réflecteur ;
  • lesdits moyens de fixations comportent une languette prévue sur ladite paroi d'appui du corps de radiateur, s'étendant notamment sensiblement perpendiculairement à celle-ci, et s'insérant dans un trou de fixation en forme de fente prévu dans la paroi de référencement dudit siège, et en ce que la fixation est obtenu par une déformation permanente de ladite languette. Par exemple, la languette peut présenter à son extrémité libre une ailette apte à être pivotée axialement par rapport à l'axe de la languette, notamment d'un quart de tour. La rotation provoque une déformation par torsion de ladite languette et permet la fixation. En variante, la languette peut présenter à son extrémité libre deux pattes séparées d'une fente, les pattes étant aptes à être déplacée radialement par rapport à l'axe de la languette. Le déplacement provoque une déformation par traction de la languette et permet la fixation ;
  • la source de lumière est montée sur le corps de radiateur via un support fixé sur ledit corps de radiateur ;
  • la source de lumière comporte au moins une diode électroluminescente, et ledit support est un circuit imprimé fixé à ladite face extérieure du corps de radiateur. La diode peut par exemple être une diode laser ;
  • ladite surface de réception du siège comporte une rainure centrale recevant une partie avant dudit circuit imprimé ;
  • ledit circuit imprimé comporte sur un bord avant au moins un, notamment deux, évidement coopérant avec une, notamment deux, saillie de référencement prévues sur le siège, notamment sur la paroi de référencement dudit siège.
According to other characteristics of the light module according to the invention:
  • the support wall and / or the tongue of the radiator body is capable of deforming when the tongue is pressed against the inclined surface of the referencing wall during assembly of the module;
  • the rigidity of the seat is greater than the rigidity of the radiator body. This characteristic offers the advantage of guaranteeing that, when the tongue comes to bear against the inclined surface, it is the tongue which will deform and not the inclined surface so as to guarantee that the light source is held in position.
  • the seat comprises at least one stiffening means and / or the radiator body comprises at least one softening means. This feature offers the advantage of being able to produce the radiator body with a more rigid material, for example aluminum, than that used for the reflector, for example polyester resin. It is thus possible to have a radiator body which responds to high thermal stresses while guaranteeing a more rigid seat than the radiator body. For example, the seat may have on either side of the referencing wall stiffening ribs whose thickness is greater than that of the rest of the wall. In another example, the radiator body, in particular the tongue, may have one or more neckings of thickness substantially less, in particular by more than 25%, or even 75%, than that of the rest of the body.
  • the inclination of the inclined surface of said seat referencing wall is, before assembly, identical to that of said tongue of said bearing wall of the radiator body;
  • the material of the radiator body is lightly cold-worked aluminum;
  • said inclined surface of said seat referencing wall ends in a part extending substantially parallel to said receiving surface thereof;
  • said tongue of the radiator body is, by two parallel slots, divided into a central part and two lateral parts;
  • the central part of the tongue has a lower inclination than that of the lateral parts. In this way, it is possible to pre-position the radiator body when it is assembled with the reflector;
  • said central part of said tongue has a reduced width compared to that of said side parts;
  • said fixing means comprise a fixing hole provided in said referencing wall of said seat, a fixing hole provided in said bearing wall of the radiator body, in particular aligned with the hole provided in the referencing wall, and a member fixing through the two holes for fixing the radiator body to the seat of the reflector;
  • said fixing hole provided in said bearing wall of the radiator body is disposed in the center of a tab cut out therein. This characteristic offers the advantage of being able to make up a play during assembly of the radiator body on the reflector;
  • said fixing member comprises a screw passing through the fixing hole provided in the bearing wall of the radiator body and through the hole fixing provided in the referencing wall of said seat of the reflector;
  • said fixing means comprise a tongue provided on said bearing wall of the radiator body, extending in particular substantially perpendicular thereto, and fitting into a fixing hole in the form of a slot provided in the referencing wall of said seat, and in that the fixing is obtained by a permanent deformation of said tongue. For example, the tongue may have at its free end a fin capable of being pivoted axially relative to the axis of the tongue, in particular by a quarter turn. The rotation causes a deformation by twisting of said tongue and allows the fixing. Alternatively, the tongue may have at its free end two legs separated by a slot, the legs being able to be moved radially relative to the axis of the tongue. The displacement causes a deformation by traction of the tongue and allows fixing;
  • the light source is mounted on the radiator body via a support fixed on said radiator body;
  • the light source comprises at least one light-emitting diode, and said support is a printed circuit fixed to said external face of the radiator body. The diode can for example be a laser diode;
  • said seat receiving surface has a central groove receiving a front part of said printed circuit;
  • said printed circuit comprises on a front edge at least one, in particular two, recess cooperating with one, in particular two, referencing projection provided on the seat, in particular on the referencing wall of said seat.

Un autre objet de l'invention est un dispositif d'éclairage et/ou de signalisation comportant un module lumineux selon l'invention.Another object of the invention is a lighting and / or signaling device comprising a light module according to the invention.

Un autre objet de l'invention est un procédé d'assemblage d'un module lumineux selon l'invention, comprenant les phases suivantes :

  • placer le corps de radiateur sur lequel est montée la source de lumière sur le siège du réflecteur en le déplaçant vers ladite paroi de référencement du siège du réflecteur jusqu'à ce que ladite languette de la paroi d'appui du corps de radiateur vienne en contact avec ladite surface inclinée de la paroi de référencement du siège ;
  • mettre en place les moyens de fixation du corps de radiateur sur le réflecteur ;
  • actionner un organe de fixation pour rapprocher la paroi d'appui du corps de radiateur de la paroi de référencement du réflecteur ;
  • continuer à actionner l'organe de fixation de sorte que ladite surface inclinée de la paroi de référencement du siège applique une force sur ladite languette de la paroi d'appui de manière à déformer ladite languette en arrière pour ainsi plaquer ladite face extérieure du corps de radiateur contre la surface de réception du siège.
Another object of the invention is a method of assembling a light module according to the invention, comprising the following phases:
  • place the radiator body on which the light source is mounted on the seat of the reflector by moving it towards said reference wall of the reflector seat until said tab of the support wall of the radiator body comes into contact with said inclined surface of the referencing wall of the seat;
  • set up the means for fixing the radiator body to the reflector;
  • actuating a fixing member to bring the support wall of the radiator body closer to the referencing wall of the reflector;
  • continue to actuate the fixing member so that said inclined surface of the referencing wall of the seat applies a force to said tongue of the support wall so as to deform said tongue back so as to press said outer face of the body of radiator against the receiving surface of the seat.

Selon d'autres caractéristiques du procédé s'assemblage selon l'invention :

  • la languette de la paroi d'appui est en trois parties dont une partie centrale vient en premier en appui contre ladite surface inclinée de la paroi de référencement de manière à atteindre une position de prépositionnement du corps de radiateur sur le siège du réflecteur ; et
  • ladite position de prépositionnement, ladite paroi d'appui du corps de radiateur se trouve à une distance d'environ 1 mm de ladite paroi de référencement du siège.
According to other characteristics of the assembly process according to the invention:
  • the tongue of the support wall is in three parts, a central part of which bears first against said inclined surface of the referencing wall so as to reach a position for prepositioning the radiator body on the seat of the reflector; and
  • said prepositioning position, said bearing wall of the radiator body is at a distance of approximately 1 mm from said referencing wall of the seat.

D'autres caractéristiques et avantages de l'invention ressortiront de la description qui va suivre d'un mode de réalisation non limitatif de l'invention, en référence aux figures annexées dans lesquelles :

  • la figure 1 est une vue partielle en perspective d'un réflecteur comportant un siège apte à recevoir un corps de radiateur associé à une source de lumière pour un module lumineux selon l'invention ;
  • la figure 2 est une vue partielle latérale du réflecteur de la figure 1 ;
  • la figure 3 est une vue d'en-dessous et en perspective d'un corps de radiateur sur la face inférieur duquel est fixé un circuit imprimé portant une diode électroluminescente pour un module lumineux selon l'invention ;
  • la figure 4 est une vue de dessus et en perspective du corps de radiateur de la figure 3 ;
  • la figure 5 est une vue latérale du corps de radiateur des figures 3 et 4;
  • la figure 6 est une vue en perspective du corps de radiateur de la figure 5 ;
  • la figure 7 est une coupe longitudinale montrant le corps de radiateur des figures 3 à 6 fixé sur le siège du réflecteur ;
  • les figures 8 et 9 sont des vues en perspective illustrant un module lumineux selon l'invention pourvu d'organe de fixation alternatif ; et
  • la figure 10 est une vue en perspective illustrant un module lumineux selon l'invention pourvu d'une autre variante de l'organe de fixation.
Other characteristics and advantages of the invention will emerge from the description which follows of a nonlimiting embodiment of the invention, with reference to the appended figures in which:
  • the figure 1 is a partial perspective view of a reflector comprising a seat capable of receiving a radiator body associated with a light source for a light module according to the invention;
  • the figure 2 is a partial side view of the reflector of the figure 1 ;
  • the figure 3 is a view from below and in perspective of a radiator body on the underside of which is fixed a printed circuit carrying a light emitting diode for a light module according to the invention;
  • the figure 4 is a top and perspective view of the radiator body of the figure 3 ;
  • the figure 5 is a side view of the radiator body of the figures 3 and 4 ;
  • the figure 6 is a perspective view of the radiator body of the figure 5 ;
  • the figure 7 is a longitudinal section showing the radiator body of the figures 3 to 6 fixed on the seat of the reflector;
  • the Figures 8 and 9 are perspective views illustrating a light module according to the invention provided with an alternative fixing member; and
  • the figure 10 is a perspective view illustrating a light module according to the invention provided with another variant of the fixing member.

Dans les figures, les éléments identiques ou équivalents porteront les mêmes signes de référence.In the figures, identical or equivalent elements will bear the same reference signs.

La figure 1 montre dans une vue partielle en perspective d'un réflecteur 1 d'un module lumineux selon l'invention. Le réflecteur présente une surface réfléchissante 2 surmontée par un siège en L 3 adapté pour recevoir un radiateur 4 sur lequel est fixé un support 5 d'une source de lumière 6 (voir figure 3).The figure 1 shows in a partial perspective view of a reflector 1 of a light module according to the invention. The reflector has a reflecting surface 2 surmounted by an L-shaped seat 3 adapted to receive a radiator 4 on which is fixed a support 5 of a light source 6 (see figure 3 ).

Le siège en L 3 est composé d'une surface de réception 7 d'une face extérieure du radiateur 4 avec le support 5 de la source de lumière 6, et d'une paroi de référencement 8 s'étendant sensiblement perpendiculairement à la surface de réception 7. La paroi de référencement 8 sert au positionnement du radiateur 4 et par conséquent aussi du support 5 avec la source de lumière 6 par rapport au réflecteur.The L-shaped seat 3 is composed of a reception surface 7 of an external face of the radiator 4 with the support 5 of the light source 6, and of a reference wall 8 extending substantially perpendicularly to the surface of reception 7. The referencing wall 8 is used for positioning the radiator 4 and therefore also the support 5 with the light source 6 relative to the reflector.

Pour ce positionnement, la paroi de référencement 8 est apte à coopérer avec une paroi d'appui 9 disposée à l'une des extrémités du radiateur 4 en s'étendant sensiblement perpendiculairement à la face extérieure de celui-ci. Par ailleurs, le radiateur 4 comporte un corps de radiateur 10 formé par une plaque globalement rectangulaire à laquelle des ailettes 11 sont reliées de manière à s'étendre de part et d'autre de la plaque 10. Pour ne pas faire saillie sur les côtés, toutes les ailettes 11 sont pliées de 90° dans la même direction, de part et d'autre du corps de radiateur 10.For this positioning, the referencing wall 8 is able to cooperate with a support wall 9 disposed at one end of the radiator 4 extending substantially perpendicular to the outer face of the latter. Furthermore, the radiator 4 comprises a radiator body 10 formed by a generally rectangular plate to which fins 11 are connected so as to extend on either side of the plate 10. In order not to protrude on the sides, all the fins 11 are bent by 90 ° in the same direction, on both sides other of the radiator body 10.

Dans l'exemple illustré sur les figures, la source de lumière 6 est une diode électroluminescente et son support 5 est un circuit imprimé. Ce circuitest sur un bord avant pourvu de deux évidements globalement semi-circulaires 12 qui lors de l'assemblage du corps de radiateur au réflecteur viennent coopérer avec deux saillies de référencement 13 prévues sur la paroi de référencement 8 du siège 3 du réflecteur 1 et présentant une forme arrondie complémentaire.In the example illustrated in the figures, the light source 6 is a light-emitting diode and its support 5 is a printed circuit. This circuit is on a front edge provided with two generally semi-circular recesses 12 which, during assembly of the radiator body with the reflector, cooperate with two referencing projections 13 provided on the referencing wall 8 of the seat 3 of the reflector 1 and having a complementary rounded shape.

D'autres sources de lumières sont également envisageables, telles que par exemple une lampe halogène ou une lampe à décharge dite « lampe à Xénon ».Other light sources are also possible, such as for example a halogen lamp or a discharge lamp known as a "Xenon lamp".

Le corps de radiateur 10 présente immédiatement devant la paroi d'appui 9 un enfoncement 14 formant un logement pour un connecteur électrique 15 disposé sur le circuit imprimé 5 et assurant les connexions de commande et d'alimentation du module lumineux.The radiator body 10 has immediately before the support wall 9 a recess 14 forming a housing for an electrical connector 15 disposed on the printed circuit 5 and ensuring the control and power connections of the light module.

La paroi d'appui 9 du radiateur 4 est tout simplement une prolongation de la plaque rectangulaire 10 pliée de 90° par rapport à celle-ci et forme avec deux ailes latérales 16 pliées de 90° par rapport à la paroi d'appui une conformation en U, vu de dessus. Lors de l'assemblage du radiateur 4 sur le réflecteur 1, ces deux ailes latérales vont se placer de part et d'autre de la paroi de référencement 8 pour faire fonction de moyens de guidage. Les ailes latérales 16 contribuent en outre à la dissipation de la chaleur.The support wall 9 of the radiator 4 is simply an extension of the rectangular plate 10 folded by 90 ° relative to the latter and forms with two lateral wings 16 folded 90 ° relative to the support wall U-shaped, seen from above. When assembling the radiator 4 on the reflector 1, these two lateral wings will be placed on either side of the referencing wall 8 to act as guide means. The side wings 16 also contribute to the dissipation of heat.

Le circuit imprimé 5 est lors de l'assemblage du radiateur 4 sur le réflecteur 1 guidé dans une rainure centrale 17 dans la surface de réception 7 du siège 3. La rainure centrale 17 présente sensiblement la même largeur que celle du circuit, augmentée d'un léger jeu permettant au circuit de glisser dans la rainure centrale 17 lors de l'assemblage.The printed circuit 5 is during assembly of the radiator 4 on the reflector 1 guided in a central groove 17 in the receiving surface 7 of the seat 3. The central groove 17 has substantially the same width as that of the circuit, increased by a slight clearance allowing the circuit to slide in the central groove 17 during assembly.

Pour aider au positionnement du radiateur 4, et par conséquent au positionnement de la source de lumière 6, par rapport au réflecteur 1, des pions 18 sont prévus sur la face extérieure du circuit imprimé pour coopérer avec des trous (non représentés) prévus sur la surface de réception 7 du siège 3.To assist in positioning the radiator 4, and consequently in positioning the light source 6, with respect to the reflector 1, pins 18 are provided on the external face of the printed circuit to cooperate with holes (not shown) provided on the reception area 7 of the seat 3.

Le radiateur 4 est fixé sur le siège 3 du réflecteur 1 par des moyens de fixation. Dans l'exemple illustré aux figures 1 à 7, ces moyens de fixation comprennent un trou de fixation 19 prévu la paroi de référencement 8 du siège 3. Ce trou de fixation 19 doit se trouver aligné sur un trou de fixation 20 prévu dans ladite paroi d'appui 9 du radiateur 4 afin de recevoir un organe de fixation sous forme d'une vis 21 (voir figure 7) pour la fixation du radiateur 4 sur le siège 3 du réflecteur 1.The radiator 4 is fixed to the seat 3 of the reflector 1 by fixing means. In the example illustrated in Figures 1 to 7 , these fixing means comprise a fixing hole 19 provided in the reference wall 8 of the seat 3. This fixing hole 19 must be aligned with a fixing hole 20 provided in said bearing wall 9 of the radiator 4 in order to receive a fixing member in the form of a screw 21 (see figure 7 ) for fixing the radiator 4 to the seat 3 of the reflector 1.

Lors de l'assemblage du radiateur 4 sur le siège 3 du réflecteur 1, la paroi d'appui 9 du radiateur 4 est sous l'effet du vissage de la vis 21 rapprochée de la paroi de référencement 8 jusqu'à ce que la paroi d'appui est fermement appliquée contre celle-ci. Dans cette position, la source de lumière doit être correctement positionnée par rapport au réflecteur.During assembly of the radiator 4 on the seat 3 of the reflector 1, the support wall 9 of the radiator 4 is under the effect of the screwing of the screw 21 brought close to the referencing wall 8 until the wall support is firmly applied against it. In this position, the light source must be correctly positioned relative to the reflector.

Selon une caractéristique importante de l'invention, la paroi d'appui 9 du radiateur 4 est prolongée par une languette inclinée en arrière 22 et apte à venir, lors de l'assemblage, en appui contre une surface inclinée 23 à une extrémité de la paroi de référencement 8 du siège 3 du réflecteur 1 de manière à plaquer la face extérieure du corps de radiateur 10 contre la surface de réception 7 du siège 3 sur le réflecteur 1.According to an important characteristic of the invention, the support wall 9 of the radiator 4 is extended by a tongue inclined at the rear 22 and able to come into contact, during assembly, against an inclined surface 23 at one end of the referencing wall 8 of the seat 3 of the reflector 1 so as to press the outer face of the radiator body 10 against the receiving surface 7 from seat 3 to reflector 1.

Selon une caractéristique important de l'invention, la paroi d'appui 9 du corps de radiateur 10 est apte à se déformer lors de l'appui de la languette 22 contre la surface inclinée 23 de la paroi de référencement 8 lors de l'assemblage du module. En effet, la rigidité du siège 3 et plus particulièrement de la surface inclinée 23 est supérieure à la rigidité du corps de radiateur 10 et plus particulièrement de la languette 22. De cette façon, lorsque la languette 22 vient en appui contre la surface inclinée 23, c'est la languette 22 qui se déformera et non la surface inclinée 23 de façon à garantir le maintien en position de la source de lumière 6.According to an important characteristic of the invention, the bearing wall 9 of the radiator body 10 is capable of deforming when the tongue 22 is pressed against the inclined surface 23 of the referencing wall 8 during assembly of the module. Indeed, the rigidity of the seat 3 and more particularly of the inclined surface 23 is greater than the rigidity of the radiator body 10 and more particularly of the tongue 22. In this way, when the tongue 22 comes to bear against the inclined surface 23 , it is the tongue 22 which will deform and not the inclined surface 23 so as to guarantee that the light source 6 is kept in position.

Avantageusement, le siège 3 comporte des moyen de rigidification 29 sous la forme de deux nervures de rigidification 29, disposées de part et d'autre des flancs de la paroi de référencement 8 et dont l'épaisseur est supérieure à celle du reste de la paroi 8.Advantageously, the seat 3 comprises stiffening means 29 in the form of two stiffening ribs 29, arranged on either side of the sides of the referencing wall 8 and whose thickness is greater than that of the rest of the wall 8.

Avantageusement encore, le corps de radiateur 10 comporte un moyen d'assouplissement 30 sous la forme d'une striction 30 formée au niveau de la pliure de la languette 22, et dont l'épaisseur est sensiblement inférieure à celle du reste du corps 10.Advantageously also, the radiator body 10 comprises a softening means 30 in the form of a neck 30 formed at the fold of the tongue 22, and whose thickness is substantially less than that of the rest of the body 10.

Enfin, le corps de radiateur 10 est réalisé avec un matériau plus rigide, par exemple de l'aluminium, que celui utilisée pour le réflecteur 1, par exemple en résine de polyester. Toutefois, afin de limiter la force nécessaire à la déformation de la languette 22, le radiateur est réalisé en aluminium faiblement écroui.Finally, the radiator body 10 is made with a more rigid material, for example aluminum, than that used for the reflector 1, for example polyester resin. However, in order to limit the force necessary for the deformation of the tongue 22, the radiator is made of weakly hardened aluminum.

Selon une caractéristique de l'invention, l'inclinaison de la surface inclinée 23 de la paroi de référencement 8 est identique à celle de la languette inclinée 22 de la paroi d'appui.According to a characteristic of the invention, the inclination of the inclined surface 23 of the referencing wall 8 is identical to that of the inclined tongue 22 of the bearing wall.

De préférence, la surface inclinée 23 de la paroi de référencement 8 du siège 3 se termine par une partie 24 de la languette 22 s'étendant sensiblement parallèlement à la surface de réception 7 du siège.Preferably, the inclined surface 23 of the referencing wall 8 of the seat 3 ends in a part 24 of the tongue 22 extending substantially parallel to the receiving surface 7 of the seat.

Selon une autre caractéristique de l'invention, la languette 22 du corps de radiateur 10 est, par deux fentes parallèles 25, divisée en une partie centrale 22' et deux parties latérales 22". La partie centrale 22' ce la languette 22 présente une inclinaison plus faible que celle des parties latérales 22" de manière à effectuer un prépositionnement du corps de radiateur 10 lors de son assemblage avec le réflecteur 1.According to another characteristic of the invention, the tongue 22 of the radiator body 10 is, by two parallel slots 25, divided into a central part 22 'and two lateral parts 22 ". The central part 22' that the tongue 22 has a lower inclination than that of the lateral parts 22 "so as to pre-position the radiator body 10 when it is assembled with the reflector 1.

La partie centrale 22' de la languette 22 présente avantageusement une largeur réduite par rapport à celle des parties latérales 22" de manière à être plus facilement déformable pendant une première phase de l'assemblage.The central part 22 'of the tongue 22 advantageously has a reduced width compared to that of the lateral parts 22 "so as to be more easily deformable during a first phase of assembly.

Le trou de fixation 19 prévu dans la paroi d'appui 9 du corps de radiateur 10 est avantageusement disposé au centre d'une patte 26 de forme globalement circulaire découpée dans la paroi d'appui afin d'effectuer un rattrapage de jeu lors de l'assemblage du corps de radiateur 10 sur le réflecteur 1.The fixing hole 19 provided in the support wall 9 of the radiator body 10 is advantageously disposed in the center of a lug 26 of generally circular shape cut in the support wall in order to take up play during the assembly of the radiator body 10 on the reflector 1.

Comme une alternative à la fixation du corps de radiateur 10 sur le réflecteur 1 à l'aide d'une vis 21, l'organe de fixation peut comporter une languette 27 (voir figures 8 et 9) prévue sur la paroi d'appui 9 du corps de radiateur 10. Cette languette 27 s'étend sensiblement perpendiculairement à la paroi d'appui 9 et est apte à être insérée dans un trou de fixation en forme de fente 28 prévu dans la paroi de référencement 8 du siège 3. La languette 27 présente à son extrémité libre une ailette 31 apte à être pivotée axialement par rapport à l'axe de la languette 27. La fixation est obtenue par une simple rotation d'un quart de tour de l'ailette 31 ce qui provoque une déformation par torsion de la languette 27.As an alternative to fixing the radiator body 10 to the reflector 1 using a screw 21, the fixing member may include a tab 27 (see Figures 8 and 9 ) provided on the support wall 9 of the radiator body 10. This tongue 27 extends substantially perpendicular to the support wall 9 and is capable of being inserted in a slot-shaped fixing hole 28 provided in the wall referencing 8 of the seat 3. The tongue 27 has at its free end a fin 31 able to be pivoted axially relative to the axis of the tongue 27. The fixing is obtained by a simple rotation of a quarter turn of the 'fin 31 which causes twisting deformation of the tongue 27.

Dans une variante représentée en figure 10, la languette 27 peut présenter à son extrémité libre deux pattes 32 séparées d'une fente, les pattes 32 étant aptes à être déplacée radialement par rapport à l'axe de la languette. La fixation est obtenue en écartant les deux pattes 32 l'une de l'autre ce qui provoque une déformation par traction de la languette 27.In a variant shown in figure 10 , the tongue 27 may have at its free end two legs 32 separated from a slot, the legs 32 being able to be moved radially relative to the axis of the tongue. The fixing is obtained by spreading the two tabs 32 from one another, which causes deformation by traction of the tongue 27.

Le procédé d'assemblage du module lumineux selon l'invention est simple, rapide à mettre en œuvre, et permet un positionnement très précis de la source de lumière par rapport au réflecteur. Il suffit pour cela de placer le corps de radiateur 10 sur lequel est fixé le support 5 de la source de lumière sur le siège 3 du réflecteur 1 en le faisant glisser vers la paroi de référencement 8 du siège 3 du réflecteur jusqu'à ce que la languette 22 de la paroi d'appui 9 du corps de radiateur 10 vienne en contact avec la surface inclinée 23 de la paroi de référencement 8 du siège 3. Ensuite, les moyens de fixation du corps de radiateur sur le réflecteur sont mis en place et un organe de fixation 21 est actionné pour rapprocher la paroi d'appui 9 du corps de radiateur 10 de la paroi de référencement 8 du réflecteur 1. Ensuite, l'actionnement de l'organe de fixation 21 est continué de sorte que la surface inclinée 23 de la paroi de référencement 8 du siège 3 applique une force sur la languette 22 de la paroi d'appui 9 de manière à déformer celle-ci en arrière pour ainsi plaquer la face extérieure du corps de radiateur 10 contre la surface de réception 7 du siège 3.The method of assembling the light module according to the invention is simple, quick to implement, and allows very precise positioning of the light source relative to the reflector. It suffices to place the radiator body 10 on which is fixed the support 5 of the light source on the seat 3 of the reflector 1 by sliding it towards the referencing wall 8 of the seat 3 of the reflector until the tongue 22 of the support wall 9 of the radiator body 10 comes into contact with the inclined surface 23 of the referencing wall 8 of the seat 3. Next, the means for fixing the radiator body to the reflector are put in place and a fixing member 21 is actuated to bring the support wall 9 closer to the radiator body 10 to the referencing wall 8 of the reflector 1. Then, the actuation of the fixing member 21 is continued so that the inclined surface 23 of the referencing wall 8 of the seat 3 applies a force to the tongue 22 of the support wall 9 so as to deform the latter behind so as to press the outer face of the radiator body 10 against the receiving surface 7 of the seat 3.

Lorsque la languette 22 est en trois parties 22', 22", la partie centrale 22' est d'abord placé en appui contre la surface inclinée 23 de la paroi de référencement 8 du siège 3 de manière à atteindre une position de prépositionnement du corps de radiateur 10 sur le siège 3 de réflecteur 1. Dans cette position de prépositionnement, la paroi d'appui 9 du corps de radiateur 10 se trouve à une distance d'environ 1 mm de la paroi de référencement 8 du siège 3.When the tongue 22 is in three parts 22 ', 22 ", the central part 22' is first placed in abutment against the inclined surface 23 of the referencing wall 8 of the seat 3 so as to reach a position for prepositioning the body of the radiator 10 on the seat 3 of the reflector 1. In this prepositioning position, the support wall 9 of the radiator body 10 is located at a distance of approximately 1 mm from the referencing wall 8 of the seat 3.

Il doit aussi être noté qu'un seul organe de fixation est nécessaire pour l'assemblage du radiateur au réflecteur et que le positionnement souhaité de la source de lumière par rapport au réflecteur est obtenu automatiquement, sans aucun réglage intermédiaire.It should also be noted that only one fixing member is necessary for assembling the radiator to the reflector and that the desired positioning of the light source relative to the reflector is obtained automatically, without any intermediate adjustment.

Bien entendu, l'invention n'est pas limitée aux exemples illustrés et décrits, et l'homme du métier sera en mesure de trouver des variantes sans pour autant sortir du cadre de l'invention.Of course, the invention is not limited to the examples illustrated and described, and those skilled in the art will be able to find variants without departing from the scope of the invention.

Claims (18)

  1. Light module for a lighting and/or signalling device comprising a heat sink (4), a reflector (1) and a light source (6), wherein the heat sink (4) comprises a heat sink body (10) and a bearing wall (9), and
    wherein the reflector (1) is provided with a seat (3) for fixing the heat sink body (10) to the reflector, said seat comprising a receiving surface (7) and a referencing wall (8) at least part of which extends substantially perpendicularly to said receiving surface, the bearing wall (9) of the heat sink (4) being provided at one end of the heat sink body (10), at least part of the bearing wall (9) extending substantially perpendicularly to an outer face of the heat sink body, said bearing wall (9) being fixed to said reference wall (8) of said seat (3) by fixing means (19, 20, 21; 27, 28) (1), characterized in that said bearing wall (9) is extended by a tongue (22) held in abutment against an inclined surface (23) of said reference wall (8) of said seat (3).
  2. Light module according to the preceding claim, characterized in that the bearing wall (9) and/or the tongue (22) is capable of deforming when the tongue (22) bears against the inclined surface (23) of the reference wall (8) when the module is assembled.
  3. Light module according to the preceding claim, characterized in that the rigidity of the seat (3) is greater than the rigidity of the heat sink body (10).
  4. Light module according to the preceding claim, characterized in that the seat (3) comprises at least one stiffening means (29) and/or the heat sink body (10) comprises at least one softening means (30).
  5. Light module according to any one of the preceding claims, characterized in that the said inclined surface (23) of the said reference wall (9) of the said seat (3) is extended by a portion extending substantially parallel to the said receiving surface (7) thereof.
  6. Light module according to any one of the preceding claims, characterized in that said tongue (22) is, by two parallel slots (25), divided into a central portion (22') and two lateral portions (22").
  7. Light module according to the preceding claim, characterized in that the central portion (22') of the tongue has a smaller inclination than that of the lateral portions (22").
  8. A light module according to one of claims 6 or 7, characterized in that said central portion (22') of said tongue (22) has a reduced width with respect to that of said lateral portions (22").
  9. Light module according to any one of the preceding claims, characterized in that said fixing means comprise a fixing hole (19) provided in said reference wall (8) of said seat (3), a fixing hole (20) provided in said bearing wall (9), notably aligned with the hole provided in the reference wall, and a fixing member (21) passing through both holes for fixing the heat sink (4) to the seat (3) of the reflector (1).
  10. Light module according to claim 9, characterized in that said fixing hole (19) provided in said bearing wall (9) is arranged in the center of a tab (26) cut out therefrom.
  11. Light module according to any one of claims 1 to 8, characterized in that said fixing means comprise a tongue (27) provided on said bearing wall (9), extending in particular substantially perpendicularly thereto, and being inserted in a slot-shaped fixing hole (28) provided in the reference wall (8) of said seat (3), and in that the fixing is obtained by permanent deformation of said tongue (27).
  12. Light module according to any one of the preceding claims, characterized in that the light source (6) is mounted on the heat sink body (10) via a bracket (5) fixed onto said heat sink body (10).
  13. Light module according to any one of the preceding claims, characterized in that the light source (6) comprises at least one light-emitting diode and in that said support (5) is a printed circuit fixed to said outer face of the heat sink body.
  14. Light module according to claim 13, characterized in that said receiving surface (7) of said seat (3) comprises a central groove (17) receiving a front part of said printed circuit (5).
  15. Light module according to any one of claims 13 or 14, characterized in that said printed circuit (5) comprises on a front edge at least one, in particular two, recess (12) cooperating with at least one, in particular two, referencing projection (13) provided on said seat (3).
  16. Lighting and/or signalling device comprising a light module according to one of the preceding claims.
  17. Method of assembling a light module according to one of claims 1 to 15, comprising the following phases:
    - placing the heat sink body (10) on which the light source (6) is mounted on the seat (3) of the reflector (1) by moving it towards the said reference wall (8) of the said seat (3) of the reflector until the tongue (22) of the bearing wall (9) of the heat sink (4) comes into contact with the inclined surface (23) of the reference wall (8) of the said seat (3);
    - positioning the means for fixing the heat sink (4) on the reflector (1);
    - actuating a fixing member (21; 27) to bring the bearing wall (9) of the heat sink (4) closer to the reference wall (8) of the reflector (1);
    - further actuating the fixing member (21; 27) so that said inclined surface (23) of the referencing wall (8) of said seat (3) applies a force to said tongue (22) of the bearing wall (9) so as to deform said tongue backwards, thereby pressing said outer face of the heat sink body (10) against the receiving surface (7) of said seat (3).
  18. Assembly method according to claim 17, characterized in that the tongue (22) of the bearing wall is in three parts, a central part (22') of which first comes to bear against the said inclined surface (23) of the reference wall (8) so as to reach a position for pre-positioning the heat sink body (10) on the seat (3) of the reflector (1).
EP14183832.6A 2013-09-06 2014-09-05 Lighting module for an illumination and/or signalling device Active EP2846079B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1358565A FR3010488B1 (en) 2013-09-06 2013-09-06 LUMINOUS MODULE FOR LIGHTING AND / OR SIGNALING DEVICE

Publications (2)

Publication Number Publication Date
EP2846079A1 EP2846079A1 (en) 2015-03-11
EP2846079B1 true EP2846079B1 (en) 2020-06-03

Family

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Application Number Title Priority Date Filing Date
EP14183832.6A Active EP2846079B1 (en) 2013-09-06 2014-09-05 Lighting module for an illumination and/or signalling device

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EP (1) EP2846079B1 (en)
FR (1) FR3010488B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3037381B1 (en) 2015-06-11 2021-02-19 Valeo Vision DEVICE FOR POSITIONING A LIGHT SUPPORT OF A LIGHT-LUMINESCENT DIODE ON A SUPPORT ELEMENT AND LIGHT MODULE FOR A LIGHTING AND / OR SIGNALING DEVICE CONTAINING SUCH A DEVICE
FR3056702B1 (en) * 2016-09-27 2019-06-28 Valeo Vision LUMINOUS MODULE WITH INTEGRATED DRIVER
US10544915B2 (en) 2017-04-27 2020-01-28 Valeo North America, Inc. Vehicle lamp assembly having an improved heat sink with light shield
DE102017115699A1 (en) * 2017-07-12 2019-01-17 Automotive Lighting Reutlingen Gmbh Light module of a motor vehicle headlight and motor vehicle headlight with such a light module
DE102017122560A1 (en) * 2017-09-28 2019-03-28 Automotive Lighting Reutlingen Gmbh LED headlamp module
JP7068864B2 (en) * 2018-03-02 2022-05-17 株式会社小糸製作所 Vehicle lighting

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Publication number Priority date Publication date Assignee Title
US20060013004A1 (en) * 2004-07-16 2006-01-19 Charles Coushaine LED sideward emitting lamp
JP2007141549A (en) * 2005-11-16 2007-06-07 Koito Mfg Co Ltd Lamp for vehicle
JP5501906B2 (en) * 2010-09-10 2014-05-28 株式会社小糸製作所 Optical unit
JP5630360B2 (en) * 2011-03-31 2014-11-26 市光工業株式会社 Vehicle lighting
JP5830294B2 (en) * 2011-07-29 2015-12-09 スタンレー電気株式会社 Vehicle headlamp
DE102012202933A1 (en) * 2012-02-27 2013-08-29 Osram Gmbh lighting device

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Title
None *

Also Published As

Publication number Publication date
FR3010488A1 (en) 2015-03-13
FR3010488B1 (en) 2015-09-18
EP2846079A1 (en) 2015-03-11

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