EP3299702B1 - Luminous optical module of a motor vehicle - Google Patents
Luminous optical module of a motor vehicle Download PDFInfo
- Publication number
- EP3299702B1 EP3299702B1 EP17190835.3A EP17190835A EP3299702B1 EP 3299702 B1 EP3299702 B1 EP 3299702B1 EP 17190835 A EP17190835 A EP 17190835A EP 3299702 B1 EP3299702 B1 EP 3299702B1
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- European Patent Office
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- substrate
- support
- optical module
- optical
- module according
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- 230000003287 optical effect Effects 0.000 title claims description 56
- 239000000758 substrate Substances 0.000 claims description 48
- 238000001816 cooling Methods 0.000 claims description 29
- 230000000295 complement effect Effects 0.000 claims description 10
- 229920000297 Rayon Polymers 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 206010042496 Sunburn Diseases 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
-
- 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
- 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
- F21S41/19—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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/29—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
- 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
- F21S41/32—Optical layout thereof
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
-
- 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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
-
- 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
- F21S45/10—Protection of lighting devices
-
- 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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
- F21V21/088—Clips; Clamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the invention relates to an optical module for a motor vehicle, also called a light module or a lighting module.
- the invention relates more particularly to an optical module designed to emit at least two light segments which can be activated selectively, for example for the production of a headlight or projector comprising at least one such optical module.
- such a light module comprises a substrate, at least two light sources mounted on the substrate, each of which can be selectively activated to emit light rays, primary optical means which are arranged to form primary light beams from the light rays emitted by each light source, and secondary optical means arranged to project each of the primary light beams to form said light segments.
- the primary optical means are made in the form of a primary optical element such as a collector or lens, in one piece, which must be precisely positioned with respect to the light sources so that, for each source , the light rays emitted by the light source enter a light guide belonging to the primary optical element.
- a primary optical element such as a collector or lens
- the secondary optical means are produced in the form of a reflector element which is for example a converging mirror, which must also be positioned with precision, in particular by adding to the primary optical element.
- optical modules examples are illustrated in documents FR-A-2,979,971 or FR-A-2.964.724
- optical module of a motor vehicle is illustrated in the document WO-A1-2013 / 037799 .
- the invention aims to provide a design of such an optical module which makes it possible to solve the problems mentioned above relating to the need to position the various optical components with precision.
- optical module 10 comprising, arranged vertically from bottom to top, a cooling unit 12, a substrate 14, a collector 16 constituting the primary optical means, a single support 18, and a reflector 20 constituting the means. secondary optics.
- the optical module 10 and all of its components generally have a design symmetry with respect to a median vertical and longitudinal plane PVL.
- the module is designed to emit axially forward (along the axis A corresponding to the longitudinal direction L indicated in the figures) light beams F.
- the cooling unit 12 is here a radiator made in a single piece molded from a heat-conducting material.
- the cooling unit 12 is delimited by a flat horizontal upper face 22 of generally rectangular outline.
- the upper face 22 of the cooling unit 12 is delimited by two longitudinal side edges 24, and by two rear transverse edges 26 and front 28.
- the cooling unit 12 is extended by a longitudinal fixing heel 30 which is delimited by a horizontal upper face 32 parallel to the upper face 22, but vertically offset downwards with respect to to the latter.
- the upper face 22 comprises four indexing pins in position 12-A which extend vertically upwards, above the plane of the upper face 22.
- the upper face 22 comprises, at an angle, a coding finger 34.
- the cooling unit 12 In its upper face 22, the cooling unit 12 has two transversely opposed fixing holes 36, each of which is able to receive a rear screw 38 for fixing the support 18.
- the heel 30 In its upper face 32, the heel 30 has a central fixing hole 37 adapted to receive a front screw 40 for fixing and tightening the support 18.
- the cooling unit 12 In its upper face 22, the cooling unit 12 has two indexing holes 12-B in the position of the support 18.
- the cooling unit 12 comprises a series of three recesses 22B, the function of which will be explained later.
- the substrate 14 is a horizontal plate of rectangular outline almost identical to that of the upper face 22 of the cooling unit 12.
- the substrate 14 In the vicinity of its rear transverse edge, the substrate 14 comprises a notch 42 which receives the coding finger 34.
- the substrate 14 is delimited vertically by a horizontal lower face 13 which is adjacent to the upper face 22 of the cooling unit 12, here with the interposition of a sheet 44 of thermal conductivity.
- the substrate 14 comprises a series of through holes including: four indexing holes 14-B complementary to the indexing fingers 12-A for the precise positioning of the substrate 14 relative to the cooling block 12; two holes 46 aligned with the holes 36 for the passage of the rear fixing screws 38; two indexing holes 15-B for indexing in position of the support 18; and three holes and notches 48 aligned with the recesses 22B.
- the upper face 15 of the substrate 12 carries a series of five light sources 50 in the form of light-emitting diodes, as well as a resistor 52. These components 50 and 52 are welded to the upper face 15 of the substrate. which is for example a printed circuit board.
- the upper face 15 of the substrate carries electrical and electronic components 54 for connecting the substrate 14 and the module 10 and for supplying and controlling the light sources 50.
- the support 18 is a molded plastic part which comprises a vertical back plate 56 for fixing the support 12, for example on a frame (not shown) allowing the mounting and fixing of several optical modules.
- Support 18 also includes a generally horizontal lower portion 58 which extends longitudinally forward from the lower portion of rear plate 56.
- the lower part 58 has a lower face 62.
- the lower face 62 comprises two bearing rings 64, each of which defines a flat annular bearing surface 66.
- the two bearing surfaces 66 are coplanar and are designed to bear vertically on annular screw portions. -à -vis 67 the upper face 15 of the substrate 14.
- Each support ring 64 is centrally crossed by a hole 68 for the passage of a fixing screw 38.
- each fixing screw 38 bears by its head on a portion of the upper flat surface 70 surrounding the hole 68.
- the lower horizontal part 58 of the support 18 comprises two vertical indexing fingers 18-A, each of which is designed to be received in a complementary indexing hole 15-B of the substrate 14, then in a hole of 12-B indexing of the cooling unit 12, so as to precisely position the support 18 relative to the substrate 14 and to the cooling unit 12.
- the horizontal lower part 58 of the support 18 comprises a fixing and clamping tab 70 with an L-profile which extends vertically downwards and then horizontally forwards.
- the lower face 72 of the tab 70 comprises a support ring 74 which defines a flat annular support surface 76.
- the support ring 74 is designed to bear on a corresponding portion of the upper face 32 of the front heel 30.
- the support ring 74 is centrally crossed by a hole 78 for the passage of the fixing screw 40.
- the design and dimensions of the fixing lug 70 are such that it is elastically deformable during the fixing and tightening operations by means of the screw 40, the head of which is supported on a portion of the upper flat surface 80 surrounding the hole 78 .
- the lower face 62 of the support 18 comprises two pins 77 formed projecting vertically downwards and having a profile in the form of a convex spherical cap, each of which is designed to cooperate with a corresponding portion of the collector 16 as will be explained later.
- Each pin 77 is formed on a branch 79 of longitudinal orientation, which is stiffened by an upper rib.
- the rear fixing plate 56 has a series of three indexing fingers 56-A which extend vertically upwards as well as a fixing hole 82 surrounded by a bearing surface 84 for the mounting and fixing of the reflector 20.
- the “central” finger performs a keying function for the correct positioning of the reflector 20.
- the horizontal lower plate 58 of the support 18 comprises a main recess 19 allowing the passage of the upper part of the collector 16.
- the support 18 In its central part, substantially adjacent to the upper part of the manifold 16, the support 18 comprises a bulge 100, which comprises an upper wall 102 which is delimited by a front concave circular edge 104.
- the wall 102 is a protective wall to avoid the so-called “sunburn” phenomenon. This phenomenon results, in certain situations, from the accidental penetration of solar radiation inside the optical module by reflection on the reflective front face 21 of the reflector 20, then through the collector 16, thus causing a local heating phenomenon which is harmful to the light-emitting diodes 50, which may, if necessary, lead to their destruction.
- the wall 102 makes it possible to defocus the beam resulting from the solar radiation relative to the support 18
- the collector 16 which is illustrated in detail in figures 11 and 12 , is a molded plastic part which comprises an upper part 90 for guiding and transforming the light rays emitted by the light-emitting diodes 50 and which extends through the main opening 19 of the support 18:
- the collector 16 comprises a lower fixing base which is here constituted by two side blocks 92, each of which is delimited by a flat lower bearing face 94.
- the two flat bearing surfaces 94 are designed to come to bear, vertically towards the front. bottom, on portions facing the upper face 15 of the substrate 14 located at the level of the recesses 22-B and the holes and notches 48.
- the side blocks 92 carry three vertical indexing fingers 16-A which extend downward and which are designed to cooperate in a complementary manner with the indexing holes and notches 48 of the substrate 14.
- the collector 16 can be indexed in position with a keying function, with respect to the substrate 14, to the support 18, and to the cooling unit 12.
- the precise indexing in position of the collector 16 with respect to the substrate 14 is important to guarantee a good positioning of the collector 16 with respect to the light emitting diodes 50.
- the collector 16 comprises a series of light guides 91, each of which is delimited downwards by a facet 93 which constitutes the entry surface into the collector 16 of the light emitted by the light emitting diode 50. arranged opposite the facet 93.
- Each side block 92 is delimited upwards by a portion of flat surface 96.
- each side block 92 is housed inside a branch 79 of the support 18, and each portion of flat surface 96 constitutes a bearing surface for a pin 77 associate which exerts a point force of support vertically downwards in order to press the collector 16 into contact with the upper face 15 of the substrate 14.
- the fixing and tightening of all the components 12, 14, 16 and 18 is carried out by stacking these components with their relative position indexes, then by screw fixing by means of the rear fixing screws 38 and the front fixing screw 40.
- the lug 70 Due to the elastically deformable design of the fixing lug 70, during screwing and axial tightening of the screw 40, the lug 70 is elastically deformed to permanently exert a clamping force to press each side block 92 of the manifold 16 on. the upper face 15 of the substrate 14.
- the reflector is a plastic molded part which is indexed in position and which is fixed to the support 18, more precisely to the upper part of the rear plate 56 of the support 18.
- the reflector 20 For its positioning and its fixing on the support 18, the reflector 20 has a rear horizontal upper tab 86 which has three complementary indexing holes 86-B.
- the indexing fingers 56-A are received in the indexing holes 86-B, and the fixing bracket 56 is mounted to tighten in vertical support on the support surface 84 by a fixing screw 88.
- the reflector 20 is thus indexed in position on the support 18 and, indirectly, with respect to the collector 16.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Description
L'invention concerne un module optique de véhicule automobile, aussi appelé module lumineux ou module d'éclairage.The invention relates to an optical module for a motor vehicle, also called a light module or a lighting module.
L'invention concerne plus particulièrement un module optique conçu pour émettre au moins deux segments lumineux pouvant être activés de manière sélective par exemple pour la réalisation d'un phare ou projecteur comportant au moins un tel module optique.The invention relates more particularly to an optical module designed to emit at least two light segments which can be activated selectively, for example for the production of a headlight or projector comprising at least one such optical module.
Selon une conception générale connue, par exemple du document
Par exemple, les moyens optiques primaires sont réalisés sous la forme d'un élément optique primaire tel qu'un collecteur ou lentille, en une seule pièce, qui doit être positionné avec précision par rapport aux sources de lumière de façon que, pour chaque source, les rayons lumineux émis par la source de lumière pénètrent dans un guide de lumière appartenant à l'élément optique primaire.For example, the primary optical means are made in the form of a primary optical element such as a collector or lens, in one piece, which must be precisely positioned with respect to the light sources so that, for each source , the light rays emitted by the light source enter a light guide belonging to the primary optical element.
Par exemple, les moyens optiques secondaires, sont réalisés sous la forme d'un élément réflecteur qui est par exemple un miroir convergent, qui doit aussi être positionné avec précision, notamment par apport à l'élément optique primaire.For example, the secondary optical means are produced in the form of a reflector element which is for example a converging mirror, which must also be positioned with precision, in particular by adding to the primary optical element.
Des exemples de tels modules optiques sont illustrés dans les documents
Un autre exemple de module optique de véhicule automobile est illustré dans le document
L'invention vise à poser une conception d'un tel module optique qui permette de résoudre les problèmes mentionnés ci-dessus relatifs à la nécessité de positionner avec précision les différents composants optiques.The invention aims to provide a design of such an optical module which makes it possible to solve the problems mentioned above relating to the need to position the various optical components with precision.
L'invention propose un module optique de véhicule automobile pour émettre au moins deux segments lumineux pouvant être activés de manière sélective, le module comportant :
- un substrat
- au moins deux sources lumineuses montées sur le substrat dont chacune peut être activée de manière sélective pour émettre des rayons lumineux ;
- des moyens optiques primaires agencés pour former des faisceaux lumineux primaires à partir des rayons lumineux émis par chaque source lumineuse ;
- des moyens optiques secondaires agencés pour projeter chacun des faisceaux lumineux primaires pour former lesdits segments lumineux,
caractérisé en ce que :
- les moyens optiques primaires :
- comportent des moyens d'indexation en position qui coopèrent avec des moyens complémentaires du substrat ;
- sont fixés en position indexée par serrage entre le support et le substrat.
- a substrate
- at least two light sources mounted on the substrate each of which can be selectively activated to emit light rays;
- primary optical means arranged to form primary light beams from the light rays emitted by each light source;
- secondary optical means arranged to project each of the primary light beams to form said light segments,
characterized in that:
- primary optical means:
- comprise position indexing means which cooperate with complementary means of the substrate;
- are fixed in an indexed position by clamping between the support and the substrate.
Selon d'autres caractéristiques du module :
- les moyens optiques secondaires :
- comportent des moyens d'indexation en position qui coopèrent avec des moyens complémentaires du support ;
- sont fixés sur le support ;
- le module optique comporte un bloc de refroidissement qui est adjacent au substrat ;
- le bloc de refroidissement comporte des moyens d'indexation en position qui coopèrent avec des moyens complémentaires du substrat ;
- le substrat est fixé par serrage entre le bloc de refroidissement et le support ;
- le support est fixé sur le bloc de refroidissement au moyen de vis de serrage ;
- le substrat est une plaque horizontale qui est interposée verticalement entre une face supérieure du bloc de refroidissement et un plan inférieur d'appui du support ;
- le support comporte :
- au moins deux zones inférieures d'appui délimitant ledit plan inférieur d'appui sur la face supérieure du substrat ;
- et une patte déformable élastiquement qui est fixée sur le bloc de refroidissement en assurant le serrage des moyens optiques primaires entre le support et le substrat ;
- les moyens optiques primaires comportent :
- une face inférieure d'appui qui coopère avec la face supérieure du substrat ;
- et au moins une face supérieure de serrage sur laquelle agit ladite patte déformable élastiquement du support.
- secondary optical means:
- comprise position indexing means which cooperate with complementary means of the support;
- are fixed on the support;
- the optical module has a cooling block which is adjacent to the substrate;
- the cooling unit comprises position indexing means which cooperate with complementary means of the substrate;
- the substrate is clamped between the cooling block and the support;
- the support is fixed on the cooling block by means of clamping screws;
- the substrate is a horizontal plate which is interposed vertically between an upper face of the cooling block and a lower bearing plane of the support;
- the support includes:
- at least two lower bearing zones delimiting said lower bearing plane on the upper face of the substrate;
- and an elastically deformable tab which is fixed to the cooling unit by ensuring the clamping of the primary optical means between the support and the substrate;
- primary optical means include:
- a lower bearing face which cooperates with the upper face of the substrate;
- and at least one upper clamping face on which the said elastically deformable tab of the support acts.
D'autres caractéristiques et avantages de l'invention apparaitront au cours de la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels :
- la
figure 1 est une vue en perspective d'un exemple de réalisation d'un module optique selon l'invention ; - la
figure 2 est une vue de côté du module optique représenté à lafigure 1 ; - la
figure 3 est une vue analogue à celle de lafigure 2 sur laquelle les différents composants sont représentés en section par un plan longitudinal et vertical médian ; - la
figure 4 est une vue en perspective du support unique du module optique représenté à lafigure 1 ; - la
figure 5 est une vue de dessous du support unique représenté à lafigure 4 ; - la
figure 6 est une vue analogue à celle de lafigure 1 , après avoir ôté le réflecteur optique secondaire et le support unique ; - la
figure 7 est une vue analogue à celle de lafigure 6 après avoir ôté le collecteur optique primaire et les moyens électriques et électroniques de commande de l'alimentation des sources lumineuses ; - la
figure 8 est une vue analogue à celle de lafigure 7 qui représente seulement bloc de refroidissement ; - la
figure 9 est une vue en perspective de dessous à plus grande échelle du support unique du module optique représenté à lafigure 4 ; - la
figure 10 est une vue en perspective et en section par un plan transversal et vertical selon la ligne 10-10 de lafigure 2 ; - la
figure 11 est une vue en perspective de dessous du collecteur primaire ; - la
figure 12 et une vue en perspective du collecteur primaire de lafigure 11 selon un autre angle de représentation.
- the
figure 1 is a perspective view of an exemplary embodiment of an optical module according to the invention; - the
figure 2 is a side view of the optical module shown infigure 1 ; - the
figure 3 is a view similar to that of thefigure 2 on which the various components are represented in section by a longitudinal and vertical median plane; - the
figure 4 is a perspective view of the single support of the optical module shown infigure 1 ; - the
figure 5 is a bottom view of the single support shown infigure 4 ; - the
figure 6 is a view similar to that of thefigure 1 , after having removed the secondary optical reflector and the single support; - the
figure 7 is a view similar to that of thefigure 6 after having removed the primary optical collector and the electrical and electronic control means for supplying the light sources; - the
figure 8 is a view similar to that of thefigure 7 which represents only cooling block; - the
figure 9 is a perspective view from below on a larger scale of the single support of the optical module shown infigure 4 ; - the
figure 10 is a perspective view in section through a transverse and vertical plane along line 10-10 of thefigure 2 ; - the
figure 11 is a perspective view from below of the primary manifold; - the
figure 12 and a perspective view of the primary manifold of thefigure 11 according to another angle of representation.
Dans la suite de la description, des éléments présentant une structure identique ou des fonctions analogues seront désignés par des mêmes références.In the remainder of the description, elements having an identical structure or similar functions will be designated by the same references.
Dans la suite de la description, on adoptera de manière non limitative des orientations longitudinale, verticale et transversale indiquées par le trièdre "L,V,T" des figures. On définit aussi un plan horizontal qui s'étend longitudinalement et transversalement.In the remainder of the description, the longitudinal, vertical and transverse orientations indicated by the trihedron "L, V, T" of the figures will be adopted without limitation. A horizontal plane is also defined which extends longitudinally and transversely.
On a représenté sur les figures un module optique 10 comportant, agencés verticalement de bas en haut, un bloc de refroidissement 12, un substrat 14, un collecteur 16 constituant les moyens optiques primaires, un support unique 18, et un réflecteur 20 constituant les moyens optiques secondaires.There is shown in the figures an
Le module optique 10 et l'ensemble de ses composants présente globalement une symétrie de conception par rapport à un plan vertical et longitudinal médian PVL.The
De manière connue, le module est conçu pour émettre axialement vers l'avant (Selon l'axe A correspondant à la direction longitudinale L indiqué sur les figures) des faisceaux lumineux F.In a known manner, the module is designed to emit axially forward (along the axis A corresponding to the longitudinal direction L indicated in the figures) light beams F.
Le bloc de refroidissement 12 est ici un radiateur réalisé en une seule pièce moulée en un matériau conducteur de la chaleur. Le bloc de refroidissement 12 est délimité par une face supérieure horizontale plane 22 de contour globalement rectangulaire.The cooling
La face supérieure 22 du bloc de refroidissement 12 est délimitée par deux bords latéraux longitudinaux 24, et par deux bords transversaux arrière 26 et avant 28.The
A son extrémité avant, au delà du bord transversal avant 28, le bloc de refroidissement 12 se prolonge par talon longitudinal de fixation 30 qui est délimité par une face supérieure horizontale 32 parallèle à la face supérieure 22, mais décalée verticalement vers le bas par rapport à cette dernière.At its front end, beyond the front
La face supérieure 22 comporte quatre pions d'indexation en position 12-A qui s'étendent verticalement vers le haut, au-dessus du plan de la face supérieure 22.The
Au voisinage de son bord arrière 26, la face supérieure 22 comporte en angle un doigt de détrompage 34.In the vicinity of its
Dans sa face supérieure 22, le bloc de refroidissement 12 comporte deux trous, transversalement opposés, de fixation 36 dont chacun est apte à recevoir une vis arrière 38 de fixation du support 18.In its
Dans sa face supérieure 32, le talon 30 comporte un trou central de fixation 37 apte à recevoir une vis avant 40 de fixation et de serrage du support 18.In its
Dans sa face supérieure 22, le bloc de refroidissement 12 comporte deux trous 12-B d'indexation en position du support 18.In its
Enfin, à sa partie avant et dans sa face supérieure 22, le bloc de refroidissement 12 comporte une série de trois évidements 22B dont la fonction sera précisée par la suite.Finally, at its front part and in its
Comme on peut le voir notamment à la
Au voisinage de son bord transversal arrière, le substrat 14 comporte une encoche 42 qui reçoit le doigt de détrompage 34.In the vicinity of its rear transverse edge, the
Le substrat 14 est délimité verticalement par une face inférieure horizontale 13 qui est adjacente à la face supérieure 22 du bloc de refroidissement 12, ici avec interposition d'une feuille 44 de conductibilité thermique.The
Le substrat 14 comporte une série de trous traversant dont : quatre trous d'indexation 14-B complémentaires des doigts d'indexation 12-A pour le positionnement précis du substrat 14 par rapport au bloc de refroidissement 12 ; deux trous 46 alignés avec les trous 36 pour le passage des vis arrière de fixation 38 ; deux trous d'indexation 15-B pour l'indexation en position du support 18 ; et trois trous et encoches 48 alignés avec les évidements 22B.The
Au voisinage de son bord transversal avant, la face supérieure 15 du substrat 12 porte une série cinq sources lumineuses 50 sous la forme de diodes électroluminescentes, ainsi qu'une résistance 52. Ces composants 50 et 52 sont soudés sur la face supérieure 15 du substrat qui est par exemple une plaque à circuits imprimés.In the vicinity of its front transverse edge, the
Comme on peut le voir aux
Le support 18 est une pièce moulée en matière plastique qui comporte une plaque arrière verticale 56 pour la fixation du support 12, par exemple sur une armature (non représentée) permettant le montage et la fixation de plusieurs modules optiques.The
Le support 18 comporte aussi une partie inférieure globalement horizontale 58 qui s'étend longitudinalement vers l'avant à partir de la portion inférieure de la plaque arrière 56.
La partie inférieure 58 et une partie creuse qui est notamment délimitée par deux ailes latérales 60.The
La partie inférieure 58 comporte une face inférieure 62.The
Dans sa partie centrale, la face inférieure 62 comporte deux anneaux d'appui 64 dont chacun délimite une surface annulaire plane d'appui 66. Les deux surfaces d'appui 66 son coplanaires et sont conçues pour prendre appui verticalement sur des portions annulaire en vis-à-vis 67 de la face supérieure 15 du substrat 14.In its central part, the
Chaque anneau d'appui 64 est traversé centralement par un trou 68 pour le passage d'une vis de fixation 38.Each
Lors des opérations de fixation par vissage du support unique 18 sur le bloc de refroidissement 12, chaque vis de fixation 38, prend appui par sa tête sur une portion de surface plane supérieure 70 entourant le trou 68.During the operations of fixing by screwing the
Dans sa inférieure 62, la partie horizontale inférieure 58 du support 18 comporte deux doigts verticaux d'indexation 18-A dont chacun est conçu pour être reçu dans un trou complémentaire d'indexation 15-B du substrat 14, puis dans un trou d'indexation 12-B du bloc de refroidissement 12, de manière à positionner avec précision le support 18 par rapport au substrat 14 et au bloc de refroidissement 12.In its lower 62, the lower
À sa partie avant, la partie inférieure horizontale 58 du support 18 comporte une patte de fixation et de serrage 70 à profil en L qui s'étend verticalement vers le bas puis horizontalement vers l'avant.At its front part, the horizontal
La face inférieure 72 de la patte 70 comporte un anneau d'appui 74 qui délimite une surface annulaire plane d'appui 76.The
L'anneau d'appui 74 est conçu pour venir en appui sur une portion correspondante de la face supérieure 32 du talon avant 30.The
L'anneau d'appui 74 est traversé centralement par un trou 78 pour le passage de la vis de fixation 40.The
La conception et les dimensions de la patte de fixation 70 sont telles qu'elle est déformable élastiquement lors des opérations de fixation et de serrage au moyen de la vis 40 dont la tête prend appui sur une portion de surface plane supérieure 80 entourant le trou 78.The design and dimensions of the fixing
À sa partie avant, entre les doigts d'indexation 18-A et la patte de fixation 70, la face inférieure 62 du support 18 comporte deux pions 77 formés en saillie verticalement vers le bas et à profil en forme de calotte sphérique convexe dont chacun est prévu pour coopérer avec une portion correspondante du collecteur 16 comme cela sera expliqué par la suite.At its front part, between the indexing fingers 18-A and the fixing
Chaque pion 77 est formé sur une branche de 79, d'orientation longitudinale, qui est rigidifiée par une nervure supérieure.Each
À son extrémité libre supérieure, la plaque arrière de fixation 56 comporte une série de trois doigts d'indexation 56-A qui s'étendent verticalement vers le haut ainsi qu'un trou de fixation 82 entouré par une surface d'appui 84 pour le montage et la fixation du réflecteur 20. Parmi ces trois doigts d'indexation, le doigt « central assure une fonction de détrompage pour la mise en position correcte du réflecteur 20.At its upper free end, the
À sa partie avant, la plaque inférieure horizontale 58 du support 18 comporte un évidement principal 19 permettant le passage de la partie supérieure du collecteur 16.At its front part, the horizontal
Dans sa partie centrale, de manière sensiblement adjacente à la partie supérieure du collecteur 16, le support 18 comporte un renflement 100, qui comporte une paroi supérieure 102 qui est délimitée par un bord circulaire concave avant 104.In its central part, substantially adjacent to the upper part of the manifold 16, the
La paroi 102 est une paroi de protection pour éviter le phénomène dit de « sunburn ». Ce phénomène résulte, dans certaines situations, de la pénétration accidentelle du rayonnement solaire à l'intérieur du module optique par réflexion sur la face avant réfléchissante 21 du réflecteur 20, puis à travers le collecteur 16 en provoquant ainsi un phénomène d'échauffement local nuisible aux diodes électroluminescentes 50, pouvant le cas échéant aboutir à leur destruction. La paroi 102permet de défocaliser le faisceau résultant du rayonnement solaire par rapport au support 18The
De manière connue, le collecteur 16 qui est illustré en détails aux
Le collecteur 16 comporte une embase inférieure de fixation qui est ici constituée par deux blocs latéraux 92 dont chacun est délimité par une face inférieure plane d'appui 94. Les deux surfaces planes d'appui 94 sont conçues pour venir en appui, verticalement vers le bas, sur des portions en vis-à-vis de la face supérieure 15 du substrat 14 situées au niveau des évidements 22-B et des trous et encoches 48.In known manner, the
The
Les blocs latéraux 92 portent trois doigts d'indexation verticaux 16-A qui s'étendent vers le bas et qui sont conçus pour coopérer de manière complémentaire avec les trous et encoches d'indexation 48 du substrat 14.The side blocks 92 carry three vertical indexing fingers 16-A which extend downward and which are designed to cooperate in a complementary manner with the indexing holes and
Ainsi, le collecteur 16 peut être indexé en position avec une fonction de détrompage, par rapport au substrat 14, au support 18, et au bloc de refroidissement 12.Thus, the
L'indexation précise en position du collecteur 16 par rapport au substrat 14 est importante pour garantir un bon positionnement du collecteur 16 par rapport aux diodes électroluminescentes 50.The precise indexing in position of the
En effet, dans sa partie inférieure, le collecteur 16 comporte une série de guides de lumière 91 dont chacun est délimité vers le bas par une facette 93 qui constitue la surface d'entrée dans le collecteur 16 de la lumière émise par la diode électroluminescente 50 agencée en vis-à-vis de la facette 93.In fact, in its lower part, the
Chaque bloc latéral 92 est délimité vers le haut par une portion de surface plane 96.Each
En position montée et assemblée du collecteur 16 et du support 18, chaque bloc latéral 92 est logé à l'intérieur d'une branche de 79 du support 18, et chaque portion de surface plane 96 constitue une surface d'appui pour un pion 77 associé qui exerce un effort ponctuel d'appui verticalement vers le bas pour plaquer le collecteur 16 en appui sur la face supérieure 15 du substrat 14.In the mounted and assembled position of the manifold 16 and of the
La fixation et le serrage de l'ensemble des composants 12, 14,16 et 18, s'effectue par un empilage de ces composants avec leurs indexations de positions relatives, puis par fixation par vissage au moyen des vis de fixations arrière 38 et de la vis de fixation avant 40.The fixing and tightening of all the
Du fait de la conception déformable élastiquement de la patte de fixation 70, lors du vissage et du serrage axial de la vis 40, la patte 70 est déformée élastiquement pour exercer en permanence un effort de serrage pour plaquer chaque bloc latéral 92 du collecteur 16 sur la face supérieure 15 du substrat 14.Due to the elastically deformable design of the fixing
Le réflecteur est une pièce moulée en matière plastique qui est indexée en position et qui est fixée sur le support 18, plus précisément à la partie supérieure de la plaque arrière 56 du support 18.The reflector is a plastic molded part which is indexed in position and which is fixed to the
Pour son positionnement et sa fixation sur le support 18, le réflecteur 20 comporte une patte supérieure horizontale arrière 86 qui comporte trois trous complémentaires d'indexation 86-B.For its positioning and its fixing on the
Comme le voir notamment aux
Le réflecteur 20 est ainsi indexé en position sur le support 18 et, indirectement, par rapport au collecteur 16.The
Claims (9)
- Motor vehicle optical module (10) for emitting at least two light-emitting segments that can be activated selectively, the module including:- a substrate (14);- at least two light sources (50) mounted on the substrate (14) each of which can be activated selectively to emit light rays;- primary optical means (16) adapted to form primary light beams from the light rays emitted by each light source (50);- secondary optical means (20) adapted to project each of the primary light beams to form said light-emitting segments, the module including :- a single support (18) that carries the substrate (14), the primary optical means (16) and the secondary optical means (20),- means (16-A, 48) for positioning the primary optical means (16) relative to the substrate (14);characterized in that the primary optical means (16):- include position indexing means (16-A) that cooperate with complementary means (48) of the substrate (14);- are fixed in their indexed position by clamping them between the support (18) and the substrate (14).
- Optical module according to Claim 1, characterized in that the secondary optical means (20):- include position indexing means (86-B) that cooperate with complementary means (56-A) of the support (18);- are fixed to the support (18).
- Optical module according to Claim 1, characterized in that it includes a cooling block (12) that is adjacent to the substrate (14).
- Optical module according to Claim 3, characterized in that the cooling block (12) includes position indexing means (12-A) that cooperate with complementary means (14-B) of the substrate (14).
- Optical module according to Claim 4, characterized in that the substrate (14) is fixed by clamping it between the cooling block (12) and the support (18).
- Optical module according to any one of Claims 3 to 5, characterized in that the support (18) is fixed to the cooling block (12) by means of clamping screws (38, 40).
- Optical module according to any one of Claims 3 to 6, characterized in that the substrate (14) is a horizontal plate that is disposed vertically between an upper face (22) of the cooling block (12) and a lower bearing plane (66) on the support (18).
- Optical module according to Claim 7, characterized in that the support (18) includes at least two lower bearing areas (66) delimiting said lower bearing plane on the upper face (22) of the substrate (14) and includes an elastically deformable lug (70) that is fixed to the cooling block (12, 30) to clamp the primary optical means (16) between the support (18) and the substrate (14).
- Optical module according to Claim 8, characterized in that the primary optical means (16) include:- a lower bearing face (94) that cooperates with the upper face (15) of the substrate (14);- and at least one upper clamping face (96) on which said elastically deformable lug (70) of the support (18) acts.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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FR1659049A FR3056690B1 (en) | 2016-09-26 | 2016-09-26 | LUMINOUS OPTICAL MODULE OF MOTOR VEHICLE |
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EP3299702A1 EP3299702A1 (en) | 2018-03-28 |
EP3299702B1 true EP3299702B1 (en) | 2021-04-07 |
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EP17190835.3A Active EP3299702B1 (en) | 2016-09-26 | 2017-09-13 | Luminous optical module of a motor vehicle |
Country Status (4)
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US (1) | US10378723B2 (en) |
EP (1) | EP3299702B1 (en) |
CN (1) | CN107869691B (en) |
FR (1) | FR3056690B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102018110587A1 (en) * | 2018-05-03 | 2019-11-07 | Automotive Lighting Reutlingen Gmbh | DMD light module with a clamped DMD chip |
US10823356B1 (en) | 2019-12-20 | 2020-11-03 | Valeo Vision | Device and method of focusing a light |
JPWO2023068153A1 (en) * | 2021-10-20 | 2023-04-27 | ||
FR3141505A1 (en) * | 2022-10-28 | 2024-05-03 | Valeo Vision | Lighting device for a motor vehicle |
EP4397903A1 (en) * | 2023-01-03 | 2024-07-10 | Valeo Vision | Automotive luminous device |
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Publication number | Priority date | Publication date | Assignee | Title |
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FR2928894B1 (en) * | 2008-03-20 | 2010-04-30 | Plastic Omnium Cie | REAR MODULE OF A MOTOR VEHICLE FOR REPORTING ON A REAR OPENING STRUCTURE |
JP5471596B2 (en) | 2010-03-01 | 2014-04-16 | 市光工業株式会社 | Vehicle lighting |
AT511761B1 (en) * | 2011-08-08 | 2014-02-15 | Zizala Lichtsysteme Gmbh | LED LIGHT SOURCE MODULE FOR A VEHICLE HEADLAMP AND VEHICLE HEADLAMP AND VEHICLE LIGHT SYSTEM |
FR2979971B1 (en) * | 2011-09-13 | 2014-01-17 | Valeo Vision | LIGHTING AND / OR SIGNALING DEVICE FOR MOTOR VEHICLE |
FR2982006B1 (en) | 2011-09-13 | 2018-04-27 | Valeo Vision | OPTICAL MODULE WITH COMMON REFERENCE FOR LIGHTING AND / OR SIGNALING OF A MOTOR VEHICLE |
FR2996503B1 (en) * | 2012-10-10 | 2016-11-04 | Renault Sa | ARRANGEMENT OF A FRONT PART OF A MOTOR VEHICLE |
RU2674149C2 (en) * | 2013-11-05 | 2018-12-05 | Филипс Лайтинг Холдинг Б.В. | Light-emitting device |
FR3015853B1 (en) * | 2013-12-20 | 2017-01-27 | Valeo Vision | LED SUPPORT WITH ELECTRICAL CONNECTION BY BRIDGE |
FR3022974B1 (en) * | 2014-06-30 | 2018-11-09 | Valeo Vision | LIGHTING MODULE FOR AUTOMOTIVE PROJECTOR WITH POSITIONING BETWEEN REFLECTOR AND LENS |
CN204593165U (en) * | 2015-05-13 | 2015-08-26 | 许宸伟 | The radiator structure of car light |
FR3040935B1 (en) * | 2015-09-14 | 2018-08-24 | Valeo Vision | LIGHTING SYSTEM FOR MOTOR VEHICLES |
FR3054298A1 (en) * | 2016-07-22 | 2018-01-26 | Valeo Vision | VEHICLE LIGHT PROJECTOR |
DE102016125676A1 (en) * | 2016-12-23 | 2018-06-28 | Automotive Lighting Reutlingen Gmbh | LED module and lighting device for a motor vehicle with a plurality of such LED modules |
-
2016
- 2016-09-26 FR FR1659049A patent/FR3056690B1/en active Active
-
2017
- 2017-09-13 EP EP17190835.3A patent/EP3299702B1/en active Active
- 2017-09-26 CN CN201710880937.6A patent/CN107869691B/en active Active
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US20180087730A1 (en) | 2018-03-29 |
EP3299702A1 (en) | 2018-03-28 |
FR3056690B1 (en) | 2019-08-02 |
FR3056690A1 (en) | 2018-03-30 |
CN107869691A (en) | 2018-04-03 |
US10378723B2 (en) | 2019-08-13 |
CN107869691B (en) | 2021-09-21 |
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