EP3043107A1 - Optical module for motor vehicle headlight - Google Patents
Optical module for motor vehicle headlight Download PDFInfo
- Publication number
- EP3043107A1 EP3043107A1 EP16150244.8A EP16150244A EP3043107A1 EP 3043107 A1 EP3043107 A1 EP 3043107A1 EP 16150244 A EP16150244 A EP 16150244A EP 3043107 A1 EP3043107 A1 EP 3043107A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radiator
- optical module
- fan
- module according
- clipping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 43
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 230000003993 interaction Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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- 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
- F21S45/42—Forced cooling
- F21S45/43—Forced cooling using gas
-
- 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]
-
- 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
- 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
-
- 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
- F21V17/16—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 deformation of parts; Snap action mounting
-
- 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
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
-
- 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
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
-
- 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
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
- F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- 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 vehicle headlamp.
- Such an optical module operates with a light source having the disadvantage of emitting heat. It is therefore equipped with a radiator for absorbing this heat, so as to maintain the temperature of said module at a relatively low level. In this way, the operation of the optical module is not affected by too high a temperature.
- This type of module has already been patented.
- This module includes a radiator able to blow air cooled to the light source.
- An optical module according to the invention implements a fan / radiator assembly, which is easy and quick to assemble and disassemble, is compact and has a reduced cost.
- the subject of the invention is an optical module comprising a radiator provided with one or more heat-dissipating surfaces, a fan capable of sending air onto the heat-dissipating surface (s), and a light source supported by said radiator.
- the main characteristic of an optical module according to the invention is that the fan is attached to the radiator by clipping. In this way, the attachment of the fan to the radiator is easy and fast because it does not require specific tools or complicated handling requiring precision and rigor.
- the fan can be detached at any time from the radiator as simple and fast as when mounted on said radiator.
- the fan is oriented relative to the radiator, so that the air pulsed by said fan passes between the heat dissipating surfaces of the radiator. It is advantageously assumed that the radiator heat dissipating surfaces are made of metal.
- the radiator can support the light source, either directly or indirectly by means of a holding piece.
- Each heat-dissipating surface may, for example, be represented by a fin or a pin.
- the radiator comprises a housing having one or more edges and at least two deformable clipping tabs protruding from the edge or at least two of said edges, the fan being placed on said radiator between said at least two clipping tabs.
- the fixing of the fan on the radiator comprises a first phase during which the bringing together of the fan towards the radiator will cause an elastic separation of the clipping lugs, then a second phase during which the clipping lugs are going to closing on said fan once it has reached its final fixing position on said radiator.
- the legs close on the fan in a natural way trying to find their position of relaxation. It is assumed that all the clipping lugs project from said edges in the same direction.
- the fan is fixed by the top of the radiator.
- the housing has two clipping lugs protruding from two opposite edges facing one another. This is a simple configuration ensuring a homogeneous and effective stowage of the fan on the radiator.
- each clipping lug has three segments and two elbows, the distance separating said tabs being smaller than the dimensions of the fan so that the fixing of the fan on said radiator is effected by means of a spacing of said tabs.
- the two tabs are inclined relative to each other so as to promote the insertion of the fan.
- the two legs are oriented relative to each other so as to form a bottleneck narrowing progressively as one approaches the radiator, thus facilitating the pre-positioning of the fan relative to the radiator, and then guiding its translation to bring it closer to said radiator.
- each edge is surmounted by at least one positioning element of the fan protruding from the housing in the same direction as that of the clipping lugs.
- each positioning element is constituted by a plane wall extending in the same plane each edge of the radiator housing.
- the radiator has several dissipating surfaces formed by parallel fins.
- the fins are all the same size and are strictly aligned.
- Each of the fins may advantageously be materialized by a metal sheet.
- the fins are separated from each other. In this way, they constitute a discontinuous network, two successive fins being separated and independent of one another.
- the fins are in continuity with each other to form a single piece.
- two successive fins are connected to each other by a bend of 180 °.
- the fins constitute a single piece that can easily be manipulated to, for example, be inserted into the housing of the radiator and then be fixed therein.
- the fins are aluminum.
- the fins being in the form of sheets can thus be made of 99% pure aluminum, unlike existing radiators manufactured from an injected aluminum alloy, less efficient in cooling.
- the light source comprises at least one electroluminescent diode.
- a light-emitting diode is a powerful light source in terms of light intensity produced, while remaining of a small footprint.
- the fan is fixed to the radiator by means of a sliding of said fan along said radiator and a locking by clipping.
- the sliding is effected by means of an interaction between two grooves and two rails, said two grooves belonging to one of the two elements constituted by the radiator and the fan, and said two rails belonging to the other element.
- both rails belong to the fan then the grooves belong to the radiator, and vice versa.
- the grooves are introduced into the rails and slide along them until the fan has reached its final fixing position.
- the subject of the invention is a radiator for producing an optical module according to the invention.
- the third object of the invention is a vehicle headlamp comprising at least one optical module according to the invention.
- a light module according to the invention is particularly suitable for use in a vehicle headlight, and more particularly in a motor vehicle headlight.
- An optical module according to the invention has the advantage of being flexible in use and maintenance, because the fan can be attached to the radiator quickly and easily, and can be removed at any time easily . It also has the advantage of being efficient in terms of temperature regulation, insofar as the radiator is made of folded sheet metal, with pure aluminum having good thermal conduction.
- an optical module 1 constitutes an elongated element, and comprises schematically two light-emitting diodes 2, 3, two reflecting surfaces 4, 5, an exit diopter 6 and a cooling device having a fan 7 and a radiator 8.
- the two diodes 2, 3 are placed on a support piece 9 flat and thin, secured to the radiator 8. More specifically, this support part 9 comprises two flat surfaces 10, 11 and parallel, a diode 2, 3 being fixed on each of said surfaces 10, 11.
- Each reflective diopter 4, 5 is curved and is located opposite a diode 2, 3 so as to reflect the light beams from said diode 2, 3 to the output diopter 6.
- the device cooling is placed behind the diodes 2, 3 with respect to the diopter 6 output. In other words, the diodes 2, 3 are placed between the output dioptre 6 and the assembly formed by the fan 7 and the radiator 8.
- the cooling device, the diodes 2, 3 and the output diopter 6 are aligned in a longitudinal axis of the optical module 1.
- the radiator 8 comprises a housing 12 and a network of fins 13 of aluminum.
- the housing 12 is delimited by four side walls 14, 15, 16, 17 and a bottom 18, two successive walls forming between them an angle of 90 °.
- the walls 14, 15, 16, 17 and the bottom 18 are planar, said bottom 18 being perpendicular to each of said walls 14, 15, 16, 17.
- each of said lugs 19, 20 having three segments 21, 22, 23 and two elbows.
- These two tabs 19, 20 emerge on the same side of the two walls 14, 15 on which they are implanted, said side being opposite to that at which the bottom 18 is located. In this way, each tab 19, 20 extends into a direction which is opposed to that where the bottom 18 is located.
- the first segment 21 extends in the same plane the wall 14, from which it emerges, the second segment 22 extends said first segment 21, and has a tendency to extend towards the center of the housing 13.
- the third segment 23 extends said second segment 22 by being slightly inclined relative to the first segment 21 and tends to extend outwardly of said housing 12, the two elbows being situated between said three segments 21, 22, 23.
- the third segments 23 of the two tabs 19, 20 facing one another, define between them a space which is gradually reduced in approaching the bottom 18 of the housing 12.
- Two positioning tabs 24, 25, 2 6, 27 frame each of the two clipping lugs 19, 20, each of said positioning tabs 24, 25, 26, 27 consisting of a flat wall of small thickness, extending in the same plane the side wall 14, 15 of the housing 12 from which it emerges, and protruding in the same direction as that of the clipping lug 19, 20.
- the other two parallel side walls 16, 17 of the housing 12 also have locating lugs 28, 29, 30 having different lengths. along the said walls 16, 17.
- the various positioning tabs 24, 25, 26, 27, 28, 29, 30 are intended to delimit a space of the radiator 8 intended to receive the fan 7.
- the fins 13 of the radiator 8 are all the same length and are arranged in said radiator 8 being parallel to each other. They are further aligned with each other, two successive fins 13 being connected to each other by means of a segment 31 bent at 180 °. In other words, each fin 13 is extended at its ends by bent segments 31 in opposite directions.
- the fins 13 being machined in sheets can be made with 99% pure aluminum and thus ensure a high performance heat conduction, in particular to cool the optical module 1.
- the fins 13 of the radiator 8 constitute a single piece, housed in the housing 12 of the radiator 8 remaining completely included in said housing 12, without emerging from it.
- the housing 12 is provided with perforated fastening elements 32, parallel to the bottom 18 of said housing 12, to allow attachment, for example by screwing it onto the flat support part 9 of the optical module 1.
- the fin array 13 and the housing 12 constitute a single piece made of folded aluminum sheet.
- the fan 7 is brought above the radiator 8, consisting of the housing 12 and the fins 13, said radiator 8 being fixed to the flat support part 9 of the optical module 1.
- the fan 7 is then moved in translation from top to bottom, as indicates the arrow 34, to be fixed on said radiator 8.
- the fan 7 then passes between the third segments 23 of the two lugs 19, 20 of clipping, causing a temporary spacing of said two legs 19, 20.
- the stroke of the fan 7 to the radiator 8 continues, until the upper part of said fan 7 has crossed the second segments 22 of said tabs 19, 20.
- the clipping lugs 19, 20 are then closed on the fan 7 while relaxing to find their rest position.
- the fin array 13 and the housing 12 constitute two separate parts made of folded aluminum sheet.
- the part materializing the network of fins 13 is then introduced into the housing 12 to form the radiator 8.
- the fan 7 is then attached to the radiator 8 according to the same principle as that used for the first preferred embodiment described above. .
- the fan 7 can be fixed, either by the top of the radiator 8 as is the case for the first two preferred embodiments described above. but laterally by means of a sliding on said radiator 8.
- This lateral sliding is implemented by means of an interaction between two parallel protruding grooves and two parallel rails, said grooves belonging to one of the two elements constituted by the fan 7 and the radiator 8, and said two rails belonging to the other element.
- the grooves are introduced into the rails, and the fan 7 slides laterally on the radiator 8 by creating an extra thickness corresponds approximately to the total thickness of said fan.
- the fan 7 is locked on said radiator 8 by clipping.
Landscapes
- 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)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
L'invention se rapporte à un module optique (1) comprenant un radiateur (8) muni d'une ou plusieurs surfaces dissipatrices de chaleur (13), un ventilateur (7) apte à envoyer de l'air sur la ou lesdites surfaces dissipatrices de chaleur (13), et une source lumineuse (2, 3) supportée par ledit radiateur (8). La principale caractéristique d'un module optique selon l'invention est que le ventilateur (7) est fixé au radiateur (8) par clippage.The invention relates to an optical module (1) comprising a radiator (8) provided with one or more heat-dissipating surfaces (13), a fan (7) able to send air to the at least one dissipating surface of heat (13), and a light source (2, 3) supported by said radiator (8). The main characteristic of an optical module according to the invention is that the fan (7) is fixed to the radiator (8) by clipping.
Description
L'invention se rapporte à un module optique pour projecteur de véhicule.The invention relates to an optical module for a vehicle headlamp.
Généralement un tel module optique fonctionne avec une source lumineuse présentant l'inconvénient d'émettre de la chaleur. Il est donc équipé d'un radiateur permettant d'absorber cette chaleur, de manière à maintenir la température dudit module à un niveau relativement bas. De cette manière, le fonctionnement du module optique n'est pas affecté par une température trop élevée.Generally such an optical module operates with a light source having the disadvantage of emitting heat. It is therefore equipped with a radiator for absorbing this heat, so as to maintain the temperature of said module at a relatively low level. In this way, the operation of the optical module is not affected by too high a temperature.
Ce type de module a déjà fait l'objet de brevets. On peut, par exemple, citer la demande de brevet
Un module optique selon l'invention met en oeuvre un ensemble ventilateur/radiateur, qui est facile et rapide à monter et à démonter, qui est peu encombrant et est d'un coût réduit.An optical module according to the invention implements a fan / radiator assembly, which is easy and quick to assemble and disassemble, is compact and has a reduced cost.
L'invention a pour objet un module optique comprenant un radiateur muni d'une ou plusieurs surfaces dissipatrices de chaleur, un ventilateur apte à envoyer de l'air sur la ou lesdites surfaces dissipatrices de chaleur, et une source lumineuse supportée par ledit radiateur.The subject of the invention is an optical module comprising a radiator provided with one or more heat-dissipating surfaces, a fan capable of sending air onto the heat-dissipating surface (s), and a light source supported by said radiator.
La principale caractéristique d'un module optique selon l'invention est que le ventilateur est fixé au radiateur par clippage. De cette manière, la fixation du ventilateur au radiateur est facile et rapide, car elle ne nécessite ni un outillage spécifique ni une manipulation compliquée requérant de la précision et de la rigueur. De plus, le ventilateur peut être désolidarisé à tout moment du radiateur de façon aussi simple et rapide que lors de son montage sur ledit radiateur. Le ventilateur est orienté par rapport au radiateur, de telle sorte que l'air pulsé par ledit ventilateur passe entre les surfaces dissipatrices de chaleur du radiateur. Il est avantageusement supposé que les surfaces dissipatrices de chaleur du radiateur sont en métal. Le radiateur peut supporter la source lumineuse, soit directement, soit indirectement au moyen d'une pièce de maintien. Chaque surface dissipatrice de chaleur peut, par exemple, être représentée par une ailette ou un picot.The main characteristic of an optical module according to the invention is that the fan is attached to the radiator by clipping. In this way, the attachment of the fan to the radiator is easy and fast because it does not require specific tools or complicated handling requiring precision and rigor. In addition, the fan can be detached at any time from the radiator as simple and fast as when mounted on said radiator. The fan is oriented relative to the radiator, so that the air pulsed by said fan passes between the heat dissipating surfaces of the radiator. It is advantageously assumed that the radiator heat dissipating surfaces are made of metal. The radiator can support the light source, either directly or indirectly by means of a holding piece. Each heat-dissipating surface may, for example, be represented by a fin or a pin.
Avantageusement, le radiateur comprend un boitier possédant un ou des bords et au moins deux pattes de clippage déformables saillant du bord ou d'au moins deux desdits bords, le ventilateur venant se placer sur ledit radiateur entre lesdites au moins deux pattes de clippage. De cette manière, la fixation du ventilateur sur le radiateur comprend une première phase au cours de laquelle le rapprochement du ventilateur vers le radiateur va provoquer un écartement élastique des pattes de clippage, puis une deuxième phase au cours de laquelle les pattes de clippage vont se refermer sur ledit ventilateur une fois que celui-ci aura atteint sa position définitive de fixation sur ledit radiateur. Les pattes se referment sur le ventilateur de façon naturelle en tentant de retrouver leur position de relaxation. Il est supposé que toutes les pattes de clippage saillent desdits bords dans le même sens. Pour cette variante de réalisation, le ventilateur vient se fixer par le dessus du radiateur.Advantageously, the radiator comprises a housing having one or more edges and at least two deformable clipping tabs protruding from the edge or at least two of said edges, the fan being placed on said radiator between said at least two clipping tabs. In this way, the fixing of the fan on the radiator comprises a first phase during which the bringing together of the fan towards the radiator will cause an elastic separation of the clipping lugs, then a second phase during which the clipping lugs are going to closing on said fan once it has reached its final fixing position on said radiator. The legs close on the fan in a natural way trying to find their position of relaxation. It is assumed that all the clipping lugs project from said edges in the same direction. For this embodiment, the fan is fixed by the top of the radiator.
De façon préférentielle, le boitier possède deux pattes de clippage saillant de deux bords opposés en regard l'un de l'autre. Il s'agit d'une configuration simple assurant un arrimage homogène et efficace du ventilateur sur le radiateur.Preferably, the housing has two clipping lugs protruding from two opposite edges facing one another. This is a simple configuration ensuring a homogeneous and effective stowage of the fan on the radiator.
Préférentiellement, chaque patte de clippage présente trois segments et deux coudes, la distance séparant lesdites pattes étant inférieure aux dimensions du ventilateur de sorte que la fixation du ventilateur sur ledit radiateur s'effectue au moyen d'un écartement desdites pattes.Preferably, each clipping lug has three segments and two elbows, the distance separating said tabs being smaller than the dimensions of the fan so that the fixing of the fan on said radiator is effected by means of a spacing of said tabs.
Avantageusement, les deux pattes sont inclinées l'une par rapport à l'autre de façon à favoriser l'insertion du ventilateur. Ainsi, les deux pattes sont orientées l'une par rapport à l'autre de manière à former un goulet d'étranglement se rétrécissant progressivement au fur et à mesure que l'on se rapproche du radiateur, facilitant ainsi le pré-positionnement du ventilateur par rapport au radiateur, et guidant ensuite sa translation pour le rapprocher dudit radiateur.Advantageously, the two tabs are inclined relative to each other so as to promote the insertion of the fan. Thus, the two legs are oriented relative to each other so as to form a bottleneck narrowing progressively as one approaches the radiator, thus facilitating the pre-positioning of the fan relative to the radiator, and then guiding its translation to bring it closer to said radiator.
De façon avantageuse, chaque bord est surmonté par au moins un élément de positionnement du ventilateur saillant du boitier dans le même sens que celui des pattes de clippage.Advantageously, each edge is surmounted by at least one positioning element of the fan protruding from the housing in the same direction as that of the clipping lugs.
Préférentiellement, chaque élément de positionnement est constitué par une paroi plane prolongeant dans le même plan chaque bord du boitier du radiateur.Preferably, each positioning element is constituted by a plane wall extending in the same plane each edge of the radiator housing.
Avantageusement, le radiateur présente plusieurs surfaces dissipatrices formées par des ailettes parallèles. De façon avantageuse, les ailettes ont toutes la même dimension et sont rigoureusement alignées. Chacune des ailettes peut avantageusement être matérialisée par une feuille métallique.Advantageously, the radiator has several dissipating surfaces formed by parallel fins. Advantageously, the fins are all the same size and are strictly aligned. Each of the fins may advantageously be materialized by a metal sheet.
De façon préférentielle, les ailettes sont séparées les unes des autres. De cette manière, elles constituent un réseau discontinu, deux ailette successives étant séparées et indépendantes l'une de l'autre.Preferably, the fins are separated from each other. In this way, they constitute a discontinuous network, two successive fins being separated and independent of one another.
Selon un autre mode de réalisation préféré d'un module optique selon l'invention, les ailettes sont en continuité les unes des autres pour former une seule pièce. Préférentiellement, deux ailettes successives sont reliées l'une à l'autre par un coude faisant 180°. Ainsi agencées, les ailettes constituent une pièce monobloc pouvant facilement être manipulée pour, par exemple, être insérée dans le boitier du radiateur puis être fixée dans celui-ci.According to another preferred embodiment of an optical module according to the invention, the fins are in continuity with each other to form a single piece. Preferably, two successive fins are connected to each other by a bend of 180 °. Thus arranged, the fins constitute a single piece that can easily be manipulated to, for example, be inserted into the housing of the radiator and then be fixed therein.
Préférentiellement, les ailettes sont en aluminium. Les ailettes étant mises sous la forme de feuilles peuvent ainsi être constituée avec de l'aluminium pur à 99%, contrairement aux radiateurs existants fabriqués à partir d'un alliage en aluminium injecté, moins performant en matière de refroidissement.Preferably, the fins are aluminum. The fins being in the form of sheets can thus be made of 99% pure aluminum, unlike existing radiators manufactured from an injected aluminum alloy, less efficient in cooling.
De façon avantageuse, la source lumineuse comprend au moins une diode électroluminescente. Une diode électroluminescente constitue une source lumineuse performante en matière d'intensité lumineuse produite, tout en demeurant d'un encombrement réduit.Advantageously, the light source comprises at least one electroluminescent diode. A light-emitting diode is a powerful light source in terms of light intensity produced, while remaining of a small footprint.
Selon un autre mode de réalisation préféré d'un module optique selon l'invention, le ventilateur vient se fixer au radiateur au moyen d'un coulissement dudit ventilateur le long dudit radiateur puis d'un verrouillage par clippage. Il s'agit d'une variante de réalisation d'un module lumineux selon l'invention, pour laquelle le ventilateur vient se fixer latéralement sur le radiateur.According to another preferred embodiment of an optical module according to the invention, the fan is fixed to the radiator by means of a sliding of said fan along said radiator and a locking by clipping. This is an alternative embodiment of a light module according to the invention, for which the fan is fixed laterally on the radiator.
Avantageusement, le coulissement s'effectue par l'intermédiaire d'une interaction entre deux rainures et deux rails, lesdites deux rainures appartenant à l'un des deux éléments constitués par le radiateur et le ventilateur, et lesdits deux rails appartenant à l'autre élément. Autrement dit, si les deux rails appartiennent au ventilateur, alors les rainures appartiennent au radiateur, et vice versa. Les rainures sont introduites dans les rails et coulissent le long de ceux-ci jusqu'à ce que le ventilateur ait atteint sa position définitive de fixation.Advantageously, the sliding is effected by means of an interaction between two grooves and two rails, said two grooves belonging to one of the two elements constituted by the radiator and the fan, and said two rails belonging to the other element. In other words, if both rails belong to the fan, then the grooves belong to the radiator, and vice versa. The grooves are introduced into the rails and slide along them until the fan has reached its final fixing position.
L'invention a pour deuxième objet un radiateur pour la réalisation d'un module optique selon l'invention.The subject of the invention is a radiator for producing an optical module according to the invention.
L'invention a pour troisième objet un projecteur de véhicule comprenant au moins un module optique conforme à l'invention. En effet, un module lumineux selon l'invention est particulièrement adapté pour être utilisé dans un projecteur de véhicule, et plus particulièrement dans un projecteur de véhicule automobile.The third object of the invention is a vehicle headlamp comprising at least one optical module according to the invention. Indeed, a light module according to the invention is particularly suitable for use in a vehicle headlight, and more particularly in a motor vehicle headlight.
Un module optique selon l'invention présente l'avantage d'être souple d'utilisation et de maintenance, car le ventilateur peut venir se fixer sur le radiateur de façon simple et rapide, et peut être retiré à tout moment de façon tout aussi aisée. Il a de plus l'avantage d'être performant en matière de régulation de la température, dans la mesure où le radiateur est réalisé en tôle pliée, avec de l'aluminium pur ayant une bonne conduction thermique.An optical module according to the invention has the advantage of being flexible in use and maintenance, because the fan can be attached to the radiator quickly and easily, and can be removed at any time easily . It also has the advantage of being efficient in terms of temperature regulation, insofar as the radiator is made of folded sheet metal, with pure aluminum having good thermal conduction.
On donne, ci-après, une description détaillée de deux modes de réalisation préférés d'un module optique selon l'invention, en se référant aux
- La
figure 1 est une vue en perspective d'un module optique selon l'invention, le ventilateur étant détaché dudit module, - la
figure 2 est une vue en coupe du module de lafigure 1 , - la
figure 3 est une vue en perspective d'un radiateur d'un module optique selon l'invention, - la
figure 4 est une vue du dessus du radiateur de lafigure 3 , - la
figure 5 est une vue en éclaté d'une partie d'un premier mode de réalisation préféré d'un module optique selon l'invention, - la
figure 6 est une vue en éclaté d'une partie d'un deuxième mode de réalisation préféré d'un module optique selon l'invention,
- The
figure 1 is a perspective view of an optical module according to the invention, the fan being detached from said module, - the
figure 2 is a sectional view of the module of thefigure 1 , - the
figure 3 is a perspective view of a radiator of an optical module according to the invention, - the
figure 4 is a top view of the radiator of thefigure 3 , - the
figure 5 is an exploded view of part of a first preferred embodiment of an optical module according to the invention, - the
figure 6 is an exploded view of part of a second preferred embodiment of an optical module according to the invention,
En se référant aux
En se référant aux
En se référant aux
En se référant aux
En se référant à la
En se référant à la
Selon un troisième mode de réalisation préféré d'un module optique 1selon l'invention, le ventilateur 7 peut venir se fixer, non plus par le dessus du radiateur 8 comme cela est le cas pour les deux premiers modes de réalisation préférés décrits ci-avant, mais latéralement au moyen d'un coulissement sur ledit radiateur 8. Ce coulissement latéral est mis en oeuvre au moyen d'une interaction entre deux rainures saillantes parallèles et deux rails parallèles, lesdites rainures appartenant à l'un des deux éléments constitués par le ventilateur 7 et le radiateur 8, et lesdits deux rails appartenant à l'autre élément. Les rainures sont introduites dans les rails, et le ventilateur 7 coulisse latéralement sur le radiateur 8 en créant une surépaisseur correspond approximativement à l'épaisseur totale dudit ventilateur. En bout de course, le ventilateur 7 est verrouillé sur ledit radiateur 8 par clippage.According to a third preferred embodiment of an
Claims (15)
Applications Claiming Priority (1)
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FR1550174A FR3031571B1 (en) | 2015-01-09 | 2015-01-09 | OPTICAL MODULE FOR VEHICLE PROJECTOR |
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EP3043107A1 true EP3043107A1 (en) | 2016-07-13 |
EP3043107B1 EP3043107B1 (en) | 2020-02-12 |
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EP16150244.8A Active EP3043107B1 (en) | 2015-01-09 | 2016-01-05 | Optical module for motor vehicle headlight |
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US (2) | US10072810B2 (en) |
EP (1) | EP3043107B1 (en) |
CN (1) | CN105782935A (en) |
FR (1) | FR3031571B1 (en) |
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Also Published As
Publication number | Publication date |
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CN105782935A (en) | 2016-07-20 |
FR3031571B1 (en) | 2018-08-10 |
US10859233B2 (en) | 2020-12-08 |
US10072810B2 (en) | 2018-09-11 |
EP3043107B1 (en) | 2020-02-12 |
US20180340667A1 (en) | 2018-11-29 |
FR3031571A1 (en) | 2016-07-15 |
US20160201870A1 (en) | 2016-07-14 |
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