EP3214363A1 - Lighting device for motor vehicle comprising light units cooled by means of an air flow generator - Google Patents

Lighting device for motor vehicle comprising light units cooled by means of an air flow generator Download PDF

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Publication number
EP3214363A1
EP3214363A1 EP17157627.5A EP17157627A EP3214363A1 EP 3214363 A1 EP3214363 A1 EP 3214363A1 EP 17157627 A EP17157627 A EP 17157627A EP 3214363 A1 EP3214363 A1 EP 3214363A1
Authority
EP
European Patent Office
Prior art keywords
air
lighting device
air duct
duct
housing
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
Application number
EP17157627.5A
Other languages
German (de)
French (fr)
Other versions
EP3214363B1 (en
Inventor
Hugo MESTRE
Isidro Manuel Garcia Alegre
Pedro Zambrana
Rafael Martinez
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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Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP3214363A1 publication Critical patent/EP3214363A1/en
Application granted granted Critical
Publication of EP3214363B1 publication Critical patent/EP3214363B1/en
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Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • F21V29/673—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for intake
    • 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
    • F21V29/763—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 the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • 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
    • 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
    • F21W2102/30—Fog lights
    • 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
    • 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 present invention relates to a lighting device for a motor vehicle.
  • a disadvantage of this state of the art is that the number of air ducts depends on the number of light modules to be cooled. This generates a large dimensions of the ducts in the lighting device and manufacturing costs of this consequent lighting device.
  • the present invention aims to solve the aforementioned drawbacks.
  • the conduit is formed by an open portion external to the lighting device and reported therein and by a structural closure member internal to the lighting device.
  • the internal structural element is thus adapted to receive the outer open portion of the conduit.
  • the closure structural element is said housing.
  • the attached portion of the air duct is fixed by fastening means to the closure structural member.
  • the fastening means are latching means or gluing means or screwing means.
  • the air flow generator comprises an air outlet and the air duct is connected directly to this air outlet.
  • the air duct extends into the lighting device from the air flow generator and in a substantially longitudinal direction.
  • the lighting device comprises a series of N light modules and in which the air duct is divided into N air sub-ducts, each duct supplying air respectively a light module of the series of N light modules.
  • the air duct comprises at least one outlet which opens directly on the heat sink of said at least one light module.
  • said outlet of the air duct has a closed section, in other words a closed profile.
  • the air sub-duct which supplies the most distant light module of the air flow generator with air has an outlet which is closed directly by the housing.
  • the output of said sub-air duct is divided into a plurality of channels.
  • the light source is a semiconductor emitter chip.
  • the structural element forming a portion of the air duct is made of plastic.
  • the lighting device is a projector.
  • the lighting device 10 for a motor vehicle is described with reference to Figures 1 to 11 .
  • motor vehicle we mean any type of motorized vehicle.
  • the lighting device 10 is a projector.
  • the light source is a semiconductor emitter chip.
  • a semiconductor emitter chip is part of a light emitting diode.
  • Light-emitting diode means any type of light-emitting diode, whether in non-limiting examples of LEDs ("Light Emitting Diode”), OLEDs ("organic LEDs”), AMOLEDs (Active-Matrix-Organic LEDs), or FOLED (Flexible OLED).
  • the light modules 2 are housed in the lighting device 10 by means of structural elements 1, 11. Among these structural elements, there is a housing 1 (shown in FIG. figure 2 ) and an optical block 11 (shown in FIG. figure 3 ) housed in the housing 1.
  • This housing 1 is in the general form of a shell defining an interior volume in which the light modules 2 are housed.
  • the casing 1 also has fastening flanges 14 for fixing it in the motor vehicle by means of fixing screws (not shown on the drawing). figure 2 ).
  • the housing 1 is adapted to receive an optical block 11.
  • the optical block 11 is fixed in the housing by means of four fastening screws 12 as illustrated in FIG. figure 1 .
  • the figure 3 presents the optical unit 11 adapted to be housed in the housing 1.
  • the optical unit 11 is made of plastic. It comprises in particular a ramp 16.
  • This ramp 16 is in the form of an elongated element generally flat and slightly inclined.
  • the ramp 16 extends in a longitudinal direction X to the optical unit 11.
  • the optical unit 11 also includes portions 21a ', 21b', 21c.
  • the ramp 16 and the parts 21a ', 21b', 21c are adapted to receive an open portion 9 of an air duct 7 attached to the housing 1.
  • This open open portion 9 rests on the ramp 16 on which she is hooked.
  • the open open portion 9 is thus closed by the optical unit 11, namely the ramp 16 and the portions 21a ', 21b', 21c of the optical unit 11.
  • the closing structural element is the optical block 11.
  • the optical block 11 is adapted to close all the open part reported 9.
  • the air duct 7 is adapted to cooperate with an air flow generator 5 and at least one heat sink so as to allow the transfer of the air flow of the air flow generator 5 to the heat sink. .
  • the figure 5 illustrates the open open portion 9 of the air duct 7 which cooperates with the air flow generator 5.
  • air flow generator is meant a fan adapted to stir a certain volume of air for the purpose to force the passage of this volume of air in the air duct 7.
  • the airflow generator 5 comprises an air outlet 15 and the air duct 7 is connected directly to this air outlet 15.
  • the air flow generator 5 is here fixed by fixing screws 20 (illustrated in FIG. figure 9 ) on a complementary structural element 22, visible at the figure 3 .
  • This complementary structural element 22 comprises in particular a fixing orifice 24 for receiving one of the fixing screws 20 of the air flow generator 5.
  • the figure 6 illustrates the open open portion 9 of the air duct 7.
  • This open open portion 9 is here open on a lower zone which will come in cooperation with the ramp 16 of the optical unit 11.
  • the open open portion 9 is also open on zones 21 a ", 21 b", 21 c "which will come into cooperation with portions 21 a ', 21 b', 21 c of the optical unit 11 so as to form outputs 21 a, 21 b, 21 c of the conduit of air 7.
  • the air duct 7 is connected to three heat sinks 3a, 3b, 3c.
  • Each heat sink 3a, 3b, 3c is associated with a light module 2.
  • Each heat sink is thus adapted to evacuate the heat generated by operation by this light module 2.
  • each heat sink 3a, 3b, 3c comprises fins allowing a heat exchange with the air flow generated by the air flow generator 15.
  • the air flow scans the fins forced passage, which allows optimal cooling of the dissipators 3a, 3b, 3c.
  • the heat dissipaters 3a, 3b, 3c are adapted to be fixed on blistered portions 18a, 18b, 18c of the optical unit 11, as illustrated in FIGS. figures 3 , 7 .
  • These hollow parts 18a, 18b, 18c allow to strengthen the structure of the optical unit 11.
  • these cellular parts 18a, 18b, 18c are made of plastic.
  • the plastic is polypropylene with 20% fiberglass (known as PP-GF20).
  • the open open portion 9 comprises fastening means adapted to fix it to a structural closure member, here the optical unit 11.
  • the fastening means comprise first fastening means 13a (illustrated in FIG. figure 4 ) complementary to second fastening means 13b (illustrated in FIG. figure 3 ) belonging to the ramp 16 of the optical unit 11.
  • the first fastening means 13a are here in the form of notches and the second fastening means 13b are, in a non-limiting embodiment, elastically deformable members.
  • the second fastening means 13b are snap-fastening means adapted to be inserted into said slots 13a.
  • these latching means 13b are here clips.
  • the figure 7 illustrates a lighting device 10 in which is integrated the air duct 7.
  • This air duct 7 is connected directly to the air outlet 15 of the air flow generator 5.
  • the air duct 7 comprises at least one outlet that opens directly onto the heat sink of a light module 2.
  • said at least one output of the duct air 7 has a closed section.
  • the section is formed by the open part of the air duct 7 (and in particular an open lateral zone 21a ", 21b", 21c ") and the closure structural element, here the optical unit 11 (and in particular a part 21a ', 21b', 21c ').
  • the air duct 7 has three outlets 21a, 21b, 21c which open directly to three heat sinks 3a, 3b, 3c.
  • the lighting device 10 comprises a series of N light modules 2, here three in the non-limiting example illustrated, and the air duct 7 is divided into N air ducts. 17a, 17b, 17c, each subcircuit supplying air respectively a light module 2 of the series of N light modules.
  • the figure 8 is a sectional view of the air duct 7 of the figure 7 realized in the length of air duct.
  • This sectional view shows that the air duct 7 is divided into 3 sub-ducts 17a, 17b, 17c.
  • Each sub-conduit 17a, 17b, 17c is adapted to supply airflow directly to a heat sink 3a, 3b, 3c via one of the outlets 21a, 21b, 21c.
  • the heat sinks 3a, 3b, 3c are thus connected in series along the air duct 7.
  • the figure 9 is a sectional view AA of the air duct of the figure 7 conducted at the air outlet 15 of the air flow generator 5.
  • the air duct 7 is formed by the open open portion 9 and the structural closure member 11, here the optical unit 11.
  • the air duct 7 comprises the three sub-ducts 17a, 17b, 17c which have substantially the same passage section in a non-limiting embodiment.
  • the air flow created by the air flow generator 5 is divided equally between the three sub-ducts 17a, 17b, 17c.
  • the three sub-ducts 17a, 17b, 17c will convey the flow of air to the three outlets 21a, 21b, 21c of the air duct 7 to cool the three light modules 2 via their associated heat sink 3a, 3b and 3c.
  • the figure 10 is a sectional view BB of the air duct of the figure 7 performed after the air supply of the first heat sink 3a, that is to say after the heatsink closest to the air flow generator 5.
  • the air duct 7 comprises only the two sub-ducts 17b, 17c which will convey the flow of air to the two outlets 21b, 21c of the air duct 7 to cool the two light modules farthest from the air flow generator 5.
  • the sub-conduit 17a is not visible in this section BB because this section is downstream of the first light module 2.
  • the figure 11 is a sectional view CC of the air duct of the figure 7 performed at the outlet 21C of this duct, namely at the third heat sink 3c furthest from the air flow generator 5.
  • the section of this outlet 21C is closed and the air duct 7 is delimited by the lateral zone 21c "and by the optical block 1, in particular the part 21c '. then comprises more than a single conduit 17c adapted to supply air to the third heat sink 3c.
  • the sub-conduit 17c is here divided into a plurality of channels 23a, 23b, 23c.
  • the use of several channels level of this output 21c allows a more uniform scan of the fins of the last heat sink 3c.
  • the action of the channels for guiding the flows is thus limited to the level of the output 21c.
  • a sub-conduit starts at the outlet 15 of the air flow generator 5 and conveys a flow of air to a heat sink 3a, 3b, 3c.
  • a channel begins at the end of a sub-duct closest to a heat sink to evenly distribute the airflow in the fins of a heat sink.
  • each subchannel comprises a plurality of channels at a corresponding output.
  • the lighting device may comprise more than three light modules and therefore more than three sub-ducts supplying air to these light modules.
  • the closure structural element is only the housing 1. In this case, there is no optical block 11.
  • the air duct 7 is formed by the open open portion 9 and by two structural closure members, namely the optical unit 11 and the housing 1. In this case, for example the part 21 c 'belongs to the housing 1 and no longer to the optical block 11.
  • each closure structural element 1 and 11 is adapted to close a portion of the open part reported 9.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

La présente invention concerne un dispositif d'éclairage (10) pour véhicule automobile comprenant :
- des éléments structurels (1, 11) dont un boîtier (1);
- au moins un module lumineux (2) logé à l'intérieur dudit boîtier (1), comprenant au moins une source lumineuse coopérant avec une surface optique, ledit module lumineux étant équipé d'un dissipateur de chaleur (3a, 3b, 3c) ;
- un générateur d'un flux d'air (5) ; et
- un unique conduit d'air (7) adapté pour coopérer avec ledit générateur du flux d'air (5) de sorte à acheminer ledit flux d'air généré vers le dissipateur de chaleur (3) dudit au moins module lumineux (2), ledit conduit d'air (7) étant formé par :
- une partie ouverte (9) rapportée dans le boîtier (1) ; et
- au moins un élément structurel de fermeture (1, 11) adapté pour refermer tout ou partie de ladite partie rapportée (9).

Figure imgaf001
The present invention relates to a lighting device (10) for a motor vehicle comprising:
structural elements (1, 11) including a housing (1);
- At least one light module (2) housed inside said housing (1), comprising at least one light source cooperating with an optical surface, said light module being equipped with a heat sink (3a, 3b, 3c) ;
- a generator of an air flow (5); and
a single air duct (7) adapted to cooperate with said airflow generator (5) so as to convey said stream of generated air to the heat sink (3) of said at least one light module (2) , said air duct (7) being formed by:
- an open part (9) reported in the housing (1); and
- At least one closure structural member (1, 11) adapted to close all or part of said attached portion (9).

Figure imgaf001

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

La présente invention concerne un dispositif d'éclairage pour véhicule automobile.The present invention relates to a lighting device for a motor vehicle.

Elle trouve une application particulière mais non limitative dans les dispositifs d'éclairage, tels que des projecteurs de véhicule automobile.It finds a particular but non-limiting application in lighting devices, such as motor vehicle headlamps.

ARRIÈRE-PLAN TECHNOLOGIQUE DE L'INVENTIONBACKGROUND OF THE INVENTION

Un dispositif d'éclairage pour véhicule automobile, tel qu'un projecteur, comprend de manière connue de l'homme du métier :

  • une pluralité de modules lumineux logés à l'intérieur d'un boîtier, comprenant au moins une source lumineuse coopérant avec un système optique, lesdits modules lumineux étant chacun équipés d'un dissipateur de chaleur ;
  • un générateur d'un flux d'air ;
  • au moins un conduit d'air adapté pour coopérer avec ledit générateur du flux d'air de sorte à acheminer ledit flux d'air généré vers le dissipateur de chaleur d'un module lumineux.
Un conduit d'air est une pièce entièrement rapportée dans le boîtier. Celui-ci est installé par un opérateur entre le générateur de flux d'air et un dissipateur de chaleur. Il est prévu autant de conduits que de modules lumineux à refroidir.A lighting device for a motor vehicle, such as a projector, comprises, in a manner known to those skilled in the art:
  • a plurality of light modules housed inside a housing, comprising at least one light source cooperating with an optical system, said light modules each being equipped with a heat sink;
  • a generator of an air flow;
  • at least one air duct adapted to cooperate with said airflow generator so as to route said generated airflow to the heat sink of a light module.
An air duct is a part completely attached in the housing. This is installed by an operator between the airflow generator and a heat sink. There are as many ducts as light modules to cool.

Un inconvénient de cet état de la technique est que le nombre de conduits d'air dépend du nombre de modules lumineux à refroidir. Cela engendre un encombrement important des conduits dans le dispositif d'éclairage et des coûts de fabrication de ce dispositif d'éclairage conséquents.A disadvantage of this state of the art is that the number of air ducts depends on the number of light modules to be cooled. This generates a large dimensions of the ducts in the lighting device and manufacturing costs of this consequent lighting device.

Dans ce contexte, la présente invention vise à résoudre les inconvénients précédemment mentionnés.In this context, the present invention aims to solve the aforementioned drawbacks.

DESCRIPTION GENERALE DE L'INVENTIONGENERAL DESCRIPTION OF THE INVENTION

A cette fin l'invention propose un dispositif d'éclairage pour véhicule automobile, ledit dispositif d'éclairage comprenant :

  • des éléments structurels dont un boîtier ;
  • au moins un module lumineux logé à l'intérieur dudit boîtier, comprenant au moins une source lumineuse coopérant avec un système optique, ledit module lumineux étant équipé d'un dissipateur de chaleur ;
  • au moins un générateur d'un flux d'air ; et
  • au moins un unique conduit d'air adapté pour coopérer avec ledit générateur du flux d'air de sorte à acheminer ledit flux d'air généré vers le dissipateur de chaleur dudit au moins un module lumineux, ledit conduit d'air étant formé par :
    • une partie ouverte rapportée dans le boîtier ; et
    • au moins un élément structurel de fermeture adapté pour refermer tout ou partie de ladite partie ouverte rapportée.
To this end the invention proposes a lighting device for a motor vehicle, said lighting device comprising:
  • structural elements including a housing;
  • at least one light module housed inside said housing, comprising at least one light source cooperating with an optical system, said light module being equipped with a heat sink;
  • at least one generator of an air flow; and
  • at least one single air duct adapted to cooperate with said air flow generator so as to convey said stream of generated air to the heat sink of said at least one light module, said air duct being formed by:
    • an open portion reported in the housing; and
    • at least one closure structural member adapted to close all or part of said reported open portion.

Ainsi, comme on va le voir en détail ci-après, en utilisant un conduit formant un unique ensemble, on limite l'encombrement de cet ensemble dans le dispositif d'éclairage. En outre, le conduit est formé par une partie ouverte externe au dispositif d'éclairage et rapportée dans celui-ci et par un élément structurel de fermeture interne au dispositif d'éclairage. L'élément structurel interne est ainsi adapté pour recevoir la partie ouverte externe du conduit. La fabrication de ce conduit est donc plus économique car un élément de celui-ci est déjà préexistant dans le dispositif d'éclairage. On diminue alors les coûts de fabrication de ce dispositif d'éclairage.Thus, as will be seen in detail below, using a duct forming a single assembly, it limits the size of this assembly in the lighting device. In addition, the conduit is formed by an open portion external to the lighting device and reported therein and by a structural closure member internal to the lighting device. The internal structural element is thus adapted to receive the outer open portion of the conduit. The manufacture of this conduit is therefore more economical because an element thereof is already pre-existing in the lighting device. This reduces the manufacturing costs of this lighting device.

Selon des modes de réalisation non limitatifs, le dispositif d'éclairage peut comporter en outre une ou plusieurs caractéristiques supplémentaires parmi les suivantes :

  • Dans un mode de réalisation non limitatif, l'élément structurel de fermeture est un bloc optique disposé dans ledit boîtier et adapté pour recevoir ledit au moins un module lumineux.
According to non-limiting embodiments, the lighting device may further comprise one or more additional characteristics among the following:
  • In a non-limiting embodiment, the closure structural element is an optical block disposed in said housing and adapted to receive said at least one light module.

Dans un mode de réalisation non limitatif, l'élément structurel de fermeture est ledit boîtier.In a non-limiting embodiment, the closure structural element is said housing.

Dans un mode de réalisation non limitatif, la partie rapportée du conduit d'air est fixée par des moyens de fixation à l'élément structurel de fermeture.In a non-limiting embodiment, the attached portion of the air duct is fixed by fastening means to the closure structural member.

Dans un mode de réalisation non limitatif, les moyens de fixation sont des moyens d'encliquetage ou des moyens de collage ou des moyens de vissage.In a non-limiting embodiment, the fastening means are latching means or gluing means or screwing means.

Dans un mode de réalisation non limitatif, le générateur du flux d'air comporte une sortie d'air et le conduit d'air est branché directement sur cette sortie d'air.In a non-limiting embodiment, the air flow generator comprises an air outlet and the air duct is connected directly to this air outlet.

Dans un mode de réalisation non limitatif, le conduit d'air s'étend dans le dispositif d'éclairage à partir du générateur de flux d'air et selon une direction sensiblement longitudinale.In a non-limiting embodiment, the air duct extends into the lighting device from the air flow generator and in a substantially longitudinal direction.

Dans un mode de réalisation non limitatif, le dispositif d'éclairage comprend une série de N modules lumineux et dans lequel le conduit d'air est divisé en N sous-conduits d'air, chaque sous-conduit alimentant en air respectivement un module lumineux de la série des N modules lumineux.In a non-limiting embodiment, the lighting device comprises a series of N light modules and in which the air duct is divided into N air sub-ducts, each duct supplying air respectively a light module of the series of N light modules.

Dans un mode de réalisation non limitatif, le conduit d'air comporte au moins une sortie qui débouche directement sur le dissipateur de chaleur dudit au moins un module lumineux.In a non-limiting embodiment, the air duct comprises at least one outlet which opens directly on the heat sink of said at least one light module.

Dans un mode de réalisation non limitatif, ladite sortie du conduit d'air présente une section fermée, en d'autres termes un profil fermé.In a non-limiting embodiment, said outlet of the air duct has a closed section, in other words a closed profile.

Dans un mode de réalisation non limitatif, le sous-conduit d'air qui alimente en air le module lumineux le plus distant du générateur de flux d'air comporte une sortie qui est fermée directement par le boîtier.In a non-limiting embodiment, the air sub-duct which supplies the most distant light module of the air flow generator with air has an outlet which is closed directly by the housing.

Dans un mode de réalisation non limitatif, la sortie dudit sous-conduit d'air est divisée en une pluralité de canaux.In a non-limiting embodiment, the output of said sub-air duct is divided into a plurality of channels.

Dans un mode de réalisation non limitatif, la source lumineuse est une puce émettrice semi-conductrice.In a non-limiting embodiment, the light source is a semiconductor emitter chip.

Dans un mode de réalisation non limitatif, l'élément structurel formant une partie du conduit d'air est en matière plastique.In a non-limiting embodiment, the structural element forming a portion of the air duct is made of plastic.

Dans un mode de réalisation non limitatif, le dispositif d'éclairage est un projecteur.In a non-limiting embodiment, the lighting device is a projector.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

L'invention et ses différentes applications seront mieux comprises à la lecture de la description qui suit et à l'examen des figures qui l'accompagnent.

  • la figure 1 représente un dispositif d'éclairage pour véhicule automobile comprenant une pluralité de modules lumineux selon un mode de réalisation non limitatif de l'invention ;
  • la figure 2 représente un premier élément structurel du dispositif d'éclairage formant boitier, ledit boîtier étant adapté pour être fixé dans le véhicule automobile ;
  • la figure 3 représente un bloc optique du dispositif d'éclairage, ce bloc optique étant adapté pour être logé dans le boîtier ;
  • la figure 4 représente une partie ouverte rapportée d'un conduit d'air du dispositif d'éclairage de la figure 1 adaptée pour être fermée par au moins un élément structurel de ce dispositif d'éclairage ;
  • la figure 5 représente la partie ouverte rapportée du conduit d'air de la figure 4 qui coopère avec un générateur de flux d'air ;
  • la figure 6 représente une vue de dessous de la partie ouverte rapportée du conduit d'air de la figure 4 qui coopère avec une pluralité de dissipateurs de chaleur ;
  • la figure 7 illustre la partie ouverte rapportée du conduit d'air des figures 4 à 6 logé dans un bloc optique de la figure 3, le tout étant intégré dans le boîtier de la figure 2 ;
  • la figure 8 représente une vue en coupe du conduit d'air de la figure 7 réalisée dans la longueur de ce conduit d'air ;
  • la figure 9 représente une vue en coupe A-A du conduit de la figure 7 réalisée au niveau de la sortie d'air du générateur du flux d'air ;
  • la figure 10 représente une vue en coupe B-B du conduit de la figure 7 ; et
  • la figure 11 représente une vue en coupe C-C du conduit de la figure 7.
The invention and its various applications will be better understood by reading the following description and examining the figures that accompany it.
  • the figure 1 represents a lighting device for a motor vehicle comprising a plurality of light modules according to a non-limiting embodiment of the invention;
  • the figure 2 represents a first structural element of the lighting device forming a housing, said housing being adapted to be fixed in the motor vehicle;
  • the figure 3 represents an optical block of the lighting device, this optical unit being adapted to be housed in the housing;
  • the figure 4 represents an exposed open portion of an air duct of the lighting device of the figure 1 adapted to be closed by at least one structural element of this lighting device;
  • the figure 5 represents the reported open portion of the air duct of the figure 4 which cooperates with an air flow generator;
  • the figure 6 represents a view from below of the reported open portion of the air duct of the figure 4 which cooperates with a plurality of heat sinks;
  • the figure 7 illustrates the open portion of the air duct Figures 4 to 6 housed in an optical block of the figure 3 , all integrated into the housing of the figure 2 ;
  • the figure 8 represents a sectional view of the air duct of the figure 7 realized in the length of this air duct;
  • the figure 9 represents a sectional view AA of the duct of the figure 7 performed at the air outlet of the air flow generator;
  • the figure 10 represents a sectional view BB of the duct of the figure 7 ; and
  • the figure 11 represents a sectional view CC of the duct of the figure 7 .

DESCRIPTION DE MODES DE REALISATION DE L'INVENTIONDESCRIPTION OF EMBODIMENTS OF THE INVENTION

Les éléments identiques, par structure ou par fonction, apparaissant sur différentes figures conservent, sauf précision contraire, les mêmes références.Identical elements, structure or function, appearing in different figures retain, unless otherwise specified, the same references.

Le dispositif d'éclairage 10 pour véhicule automobile selon l'invention est décrit en référence aux figures 1 à 11.
Par véhicule automobile, on entend tout type de véhicule motorisé.
Dans un exemple non limitatif pris dans la suite de la description, le dispositif d'éclairage 10 est un projecteur.The lighting device 10 for a motor vehicle according to the invention is described with reference to Figures 1 to 11 .
By motor vehicle, we mean any type of motorized vehicle.
In a non-limiting example taken in the remainder of the description, the lighting device 10 is a projector.

Le dispositif d'éclairage 10 comprend :

  • des éléments structurels 1, 11 dont un boîtier 1 ;
  • au moins un module lumineux 2 logé à l'intérieur dudit boîtier 1 ;
  • un générateur d'un flux d'air 5 ; et
  • un unique conduit d'air 7 adapté pour coopérer avec ledit générateur du flux d'air 5.
The lighting device 10 comprises:
  • structural elements 1, 11 including a housing 1;
  • at least one light module 2 housed inside said housing 1;
  • a generator of an air flow 5; and
  • a single air duct 7 adapted to cooperate with said air flow generator 5.

Dans un mode de réalisation non limitatif, le dispositif d'éclairage 10 comprend une pluralité de modules lumineux 2. Dans l'exemple non limitatif illustré, le dispositif d'éclairage 10 comprend trois modules lumineux 2.
Un module lumineux 2 comprend :

  • au moins une source lumineuse (non illustrée) coopérant avec une surface optique et ;
  • une surface optique (non illustrée). Dans un mode de réalisation non limitatif, la surface optique est un réflecteur et/ou une lentille.
In a non-limiting embodiment, the lighting device 10 comprises a plurality of light modules 2. In the non-limiting example illustrated, the lighting device 10 comprises three light modules 2.
A light module 2 comprises:
  • at least one light source (not shown) cooperating with an optical surface and;
  • an optical surface (not shown). In a non-limiting embodiment, the optical surface is a reflector and / or a lens.

Les modules lumineux 2 sont adaptés pour émettre un faisceau lumineux pour réaliser au moins une fonction photométrique.
Dans des modes de réalisation non limitatifs, la fonction photométrique est :

  • une fonction dite « low beam » pour réaliser un feu de croisement ;
  • une fonction dite « high beam » pour réaliser un feu de route.
  • une fonction dite « fog » pour réaliser un feu de brouillard.
  • une fonction dite DRL (« Daytime Running Lamp » en anglais) pour réaliser un feu diurne.
The light modules 2 are adapted to emit a light beam to perform at least one photometric function.
In non-limiting embodiments, the photometric function is:
  • a so-called "low beam" function for making a low beam;
  • a function called "high beam" to achieve a high beam.
  • a function called "fog" to achieve a fog light.
  • a function called DRL ("Daytime Running Lamp" in English) to achieve a daytime running light.

Dans un mode de réalisation non limitatif, la source lumineuse est une puce émettrice semi-conductrice.
Dans une variante de réalisation non limitative, une puce émettrice semi-conductrice fait partie d'une diode électroluminescente. Par diode électroluminescente, on entend tout type de diodes électroluminescentes, que ce soit dans des exemples non limitatifs des LED (« Light Emitting Diode »), des OLED (« organic LED »), des AMOLED (Active-Matrix-Organic LED), ou encore des FOLED (Flexible OLED).In a non-limiting embodiment, the light source is a semiconductor emitter chip.
In a non-limiting embodiment, a semiconductor emitter chip is part of a light emitting diode. Light-emitting diode means any type of light-emitting diode, whether in non-limiting examples of LEDs ("Light Emitting Diode"), OLEDs ("organic LEDs"), AMOLEDs (Active-Matrix-Organic LEDs), or FOLED (Flexible OLED).

Les modules lumineux 2 sont logés dans le dispositif d'éclairage 10 aux moyens d'éléments structurels 1, 11. Parmi ces éléments structurels, on distingue un boîtier 1 (illustré à la figure 2) et un bloc optique 11 (illustré à la figure 3) logé dans le boîtier 1.The light modules 2 are housed in the lighting device 10 by means of structural elements 1, 11. Among these structural elements, there is a housing 1 (shown in FIG. figure 2 ) and an optical block 11 (shown in FIG. figure 3 ) housed in the housing 1.

La figure 2 présente plus en détail le boîtier 1 du dispositif d'éclairage 10. Ce boîtier 1 se présente sous la forme générale d'une coque délimitant un volume intérieur dans lequel les modules lumineux 2 sont logés.
Le boîtier 1 dispose également de brides de fixation 14 pour sa fixation dans le véhicule automobile au moyen de vis de fixation (non représentées sur la figure 2).
Le boîtier 1 est adapté pour recevoir un bloc optique 11. Dans un mode de réalisation non limitatif, le bloc optique 11 est fixé dans le boîtier au moyen de quatre vis de fixation 12 tel qu'illustré sur la figure 1.The figure 2 This housing 1 is in the general form of a shell defining an interior volume in which the light modules 2 are housed.
The casing 1 also has fastening flanges 14 for fixing it in the motor vehicle by means of fixing screws (not shown on the drawing). figure 2 ).
The housing 1 is adapted to receive an optical block 11. In a non-limiting embodiment, the optical block 11 is fixed in the housing by means of four fastening screws 12 as illustrated in FIG. figure 1 .

La figure 3 présente le bloc optique 11 adapté à être logé dans le boîtier 1. Dans un mode de réalisation non limitatif, le bloc optique 11 est en matière plastique.
Il comporte en particulier une rampe 16. Cette rampe 16 se présente sous la forme d'un élément allongé globalement plan et légèrement incliné. La rampe 16 s'étend selon une direction X longitudinale au bloc optique 11.
Le bloc optique 11 comprend également des parties 21 a', 21 b', 21 c. La rampe 16 et les parties 21 a', 21 b', 21 c sont adaptées pour recevoir une partie ouverte 9 d'un conduit d'air 7 rapportée dans le boîtier 1. Cette partie ouverte rapportée 9 repose sur la rampe 16 sur laquelle elle est accrochée. La partie ouverte rapportée 9 est donc fermée par le bloc optique 11, à savoir la rampe 16 et les parties 21 a', 21 b', 21 c du bloc optique 11.The figure 3 presents the optical unit 11 adapted to be housed in the housing 1. In a non-limiting embodiment, the optical unit 11 is made of plastic.
It comprises in particular a ramp 16. This ramp 16 is in the form of an elongated element generally flat and slightly inclined. The ramp 16 extends in a longitudinal direction X to the optical unit 11.
The optical unit 11 also includes portions 21a ', 21b', 21c. The ramp 16 and the parts 21a ', 21b', 21c are adapted to receive an open portion 9 of an air duct 7 attached to the housing 1. This open open portion 9 rests on the ramp 16 on which she is hooked. The open open portion 9 is thus closed by the optical unit 11, namely the ramp 16 and the portions 21a ', 21b', 21c of the optical unit 11.

La partie ouverture rapportée 9 est illustrée à la figure 4. Dans cette figure 4, la partie ouverte rapportée 9 se présente sous la forme d'une partie allongée complémentaire à la rampe 16 et aux parties 21 a', 21 b', 21 c' du bloc optique 11 de sorte à former un unique conduit d'air 7. L'unique conduit d'air 7 est formé ainsi par :

  • une partie ouverte rapportée 9 rapportée dans le boîtier 1 ; et
  • au moins un élément structurel de fermeture 1, 11 adapté pour refermer tout ou partie de ladite partie rapportée 9.
The opening portion reported 9 is illustrated at figure 4 . In this figure 4 , the open open portion 9 is in the form of an elongate portion complementary to the ramp 16 and the portions 21a ', 21b', 21c 'of the optical unit 11 so as to form a single air duct 7 The single air duct 7 is thus formed by:
  • an open portion reported 9 reported in the housing 1; and
  • at least one closure structural element 1, 11 adapted to close all or part of said attached portion 9.

Dans un mode de réalisation non limitatif illustré sur la figure 3, l'élément structurel de fermeture est le bloc optique 11. Dans ce cas, le bloc optique 11 est adapté pour refermer toute la partie ouverte rapportée 9.In a non-limiting embodiment illustrated on the figure 3 , the closing structural element is the optical block 11. In this case, the optical block 11 is adapted to close all the open part reported 9.

Le conduit d'air 7 est adapté pour coopérer avec un générateur de flux d'air 5 et au moins un dissipateur de chaleur de sorte à permettre le transfert du flux d'air de ce générateur de flux d'air 5 au dissipateur de chaleur.The air duct 7 is adapted to cooperate with an air flow generator 5 and at least one heat sink so as to allow the transfer of the air flow of the air flow generator 5 to the heat sink. .

La figure 5 illustre la partie ouverte rapportée 9 du conduit d'air 7 qui coopère avec le générateur de flux d'air 5. Par « générateur de flux d'air », on entend un ventilateur adapté pour brasser un certain volume d'air dans le but de forcer le passage de ce volume d'air dans le conduit d'air 7.
Dans le mode de réalisation non limitatif illustré à la figure 5, le générateur de flux d'air 5 comporte une sortie d'air 15 et le conduit d'air 7 est branché directement sur cette sortie d'air 15. Ainsi, il n'y a aucune perte de charge entre le générateur de flux d'air 5 et le conduit d'air 7.
On notera que le générateur de flux d'air 5 est ici fixé par des vis de fixation 20 (illustrées à la figure 9) sur un élément structurel complémentaire 22, visible à la figure 3. Cet élément structurel complémentaire 22 comprend notamment un orifice de fixation 24 pour recevoir une des vis de fixation 20 du générateur de flux d'air 5.The figure 5 illustrates the open open portion 9 of the air duct 7 which cooperates with the air flow generator 5. By "air flow generator" is meant a fan adapted to stir a certain volume of air for the purpose to force the passage of this volume of air in the air duct 7.
In the non-limiting embodiment illustrated in FIG. figure 5 , the airflow generator 5 comprises an air outlet 15 and the air duct 7 is connected directly to this air outlet 15. Thus, there is no pressure drop between the flow generator 5 and the air duct 7.
It will be noted that the air flow generator 5 is here fixed by fixing screws 20 (illustrated in FIG. figure 9 ) on a complementary structural element 22, visible at the figure 3 . This complementary structural element 22 comprises in particular a fixing orifice 24 for receiving one of the fixing screws 20 of the air flow generator 5.

La figure 6 illustre la partie ouverte rapportée 9 du conduit d'air 7. Cette partie ouverte rapportée 9 est ici ouverte sur une zone inférieure qui va venir en coopération avec la rampe 16 du bloc optique 11. La partie ouverte rapportée 9 est également ouverte sur des zones latérales 21 a", 21 b", 21 c" qui vont venir en coopération avec des parties 21 a', 21 b', 21 c du bloc optique 11 de sorte à former des sorties 21 a, 21 b, 21 c du conduit d'air 7.
Le conduit d'air 7 est relié à trois dissipateurs de chaleur 3a, 3b, 3c. Chaque dissipateur de chaleur 3a, 3b, 3c est associé avec un module lumineux 2. Chaque dissipateur de chaleur est ainsi adapté pour évacuer la chaleur dégagée en fonctionnement par ce module lumineux 2. Pour cela chaque dissipateur de chaleur 3a, 3b, 3c comprend des ailettes permettant un échange thermique avec le flux d'air généré par le générateur de flux d'air 15. Le flux d'air balaye les ailettes en passage forcé, ce qui permet un refroidissement optimal des dissipateurs 3a, 3b, 3c.
On notera également que les dissipateurs de chaleur 3a, 3b, 3c sont adaptés pour être fixés sur des parties alvéolées 18a, 18b, 18c du bloc optique 11, comme cela est illustré aux figures 3, 7. Ces parties alvéolées 18a, 18b, 18c permettent de renforcer la structure du bloc optique 11. Dans un mode de réalisation non limitatif, ces parties alvéolées 18a, 18b, 18c sont en matière plastique. Dans un exemple non limitatif, la matière plastique est du polypropylène avec 20% de fibre de verre (connue sous la référence PP-GF20).The figure 6 illustrates the open open portion 9 of the air duct 7. This open open portion 9 is here open on a lower zone which will come in cooperation with the ramp 16 of the optical unit 11. The open open portion 9 is also open on zones 21 a ", 21 b", 21 c "which will come into cooperation with portions 21 a ', 21 b', 21 c of the optical unit 11 so as to form outputs 21 a, 21 b, 21 c of the conduit of air 7.
The air duct 7 is connected to three heat sinks 3a, 3b, 3c. Each heat sink 3a, 3b, 3c is associated with a light module 2. Each heat sink is thus adapted to evacuate the heat generated by operation by this light module 2. For this, each heat sink 3a, 3b, 3c comprises fins allowing a heat exchange with the air flow generated by the air flow generator 15. The air flow scans the fins forced passage, which allows optimal cooling of the dissipators 3a, 3b, 3c.
It will also be noted that the heat dissipaters 3a, 3b, 3c are adapted to be fixed on blistered portions 18a, 18b, 18c of the optical unit 11, as illustrated in FIGS. figures 3 , 7 . These hollow parts 18a, 18b, 18c allow to strengthen the structure of the optical unit 11. In a non-limiting embodiment, these cellular parts 18a, 18b, 18c are made of plastic. In a non-limiting example, the plastic is polypropylene with 20% fiberglass (known as PP-GF20).

Dans un mode de réalisation non limitatif, la partie ouverte rapportée 9 comprend des moyens de fixation adaptés pour la fixer à un élément structurel de fermeture, ici le bloc optique 11.
Dans une variante de réalisation non limitative, les moyens de fixation comprennent des premiers moyens de fixation 13a (illustrés sur la figure 4) complémentaires à des seconds moyens de fixation 13b (illustrés sur la figure 3) appartenant à la rampe 16 du bloc optique 11. Les premiers moyens de fixation 13a sont ici présents sous la forme d'encoches et les seconds moyens de fixation 13b sont, dans un mode de réalisation non limitatif, des organes déformables élastiquement. Dans une variante de réalisation non limitative, les seconds moyens de fixation 13b sont des moyens d'encliquetage adaptés pour être insérés dans lesdites encoches 13a. Dans un exemple non limitatif, ces moyens d'encliquetage 13b sont ici des clips.In a non-limiting embodiment, the open open portion 9 comprises fastening means adapted to fix it to a structural closure member, here the optical unit 11.
In a non-limiting variant embodiment, the fastening means comprise first fastening means 13a (illustrated in FIG. figure 4 ) complementary to second fastening means 13b (illustrated in FIG. figure 3 ) belonging to the ramp 16 of the optical unit 11. The first fastening means 13a are here in the form of notches and the second fastening means 13b are, in a non-limiting embodiment, elastically deformable members. In a non-limiting variant embodiment, the second fastening means 13b are snap-fastening means adapted to be inserted into said slots 13a. In a non-limiting example, these latching means 13b are here clips.

Le conduit d'air 7 est assemblé selon le procédé d'assemblage suivant :

  • on vient positionner la partie ouverte rapportée 9 sur la rampe 16 de sorte à positionner les encoches 13a en regard des clips 13b.
  • dans cette position, on applique sur la partie ouverte rapportée 9 une force perpendiculaire à la direction transversale X de sorte à ce que les clips 13b viennent se loger dans les encoches 13a ;
La partie ouverte rapportée 9 est ainsi fixée à la rampe 16 et le conduit d'air 7 est formé.
Dans un autre mode de réalisation non limitatif, les moyens de fixation sont des moyens de collage.
Dans un autre mode de réalisation non limitatif, les moyens de fixation sont des moyens de vissage.The air duct 7 is assembled according to the following assembly method:
  • the inserted open portion 9 is positioned on the ramp 16 so as to position the notches 13a opposite the clips 13b.
  • in this position, is applied to the open portion 9 reported a force perpendicular to the transverse direction X so that the clips 13b are housed in the notches 13a;
The open open portion 9 is thus attached to the ramp 16 and the air duct 7 is formed.
In another non-limiting embodiment, the fixing means are gluing means.
In another non-limiting embodiment, the fixing means are screwing means.

La figure 7 illustre un dispositif d'éclairage 10 dans lequel est intégré le conduit d'air 7. Ce conduit d'air 7 est branché directement sur la sortie d'air 15 du générateur du flux d'air 5.
Dans un mode de réalisation non limitatif, le conduit d'air 7 comporte au moins une sortie qui débouche directement sur le dissipateur de chaleur d'un module lumineux 2. Dans un mode de réalisation non limitatif, ladite au moins une sortie du conduit d'air 7 a une section fermée. La section est formée par la partie ouverte rapportée du conduit d'air 7 (et notamment une zone latérale ouverte 21 a", 21b", 21c") et l'élément structurel de fermeture, ici le bloc optique 11 (et notamment une partie 21 a', 21 b', 21 c').
Dans l'exemple non limitatif illustré sur la figure 7, le conduit d'air 7 comporte trois sorties 21 a, 21 b, 21 c qui débouchent directement sur trois dissipateurs de chaleur 3a, 3b, 3c.The figure 7 illustrates a lighting device 10 in which is integrated the air duct 7. This air duct 7 is connected directly to the air outlet 15 of the air flow generator 5.
In a non-limiting embodiment, the air duct 7 comprises at least one outlet that opens directly onto the heat sink of a light module 2. In a non-limiting embodiment, said at least one output of the duct air 7 has a closed section. The section is formed by the open part of the air duct 7 (and in particular an open lateral zone 21a ", 21b", 21c ") and the closure structural element, here the optical unit 11 (and in particular a part 21a ', 21b', 21c ').
In the non-limiting example illustrated on the figure 7 , the air duct 7 has three outlets 21a, 21b, 21c which open directly to three heat sinks 3a, 3b, 3c.

Dans un mode de réalisation non limitatif, le dispositif d'éclairage 10 comprend une série de N modules lumineux 2, ici trois dans l'exemple non limitatif illustré, et le conduit d'air 7 est divisé en N sous-conduits d'air 17a, 17b, 17c, chaque sous-conduit alimentant en air respectivement un module lumineux 2 de la série des N modules lumineux.In a non-limiting embodiment, the lighting device 10 comprises a series of N light modules 2, here three in the non-limiting example illustrated, and the air duct 7 is divided into N air ducts. 17a, 17b, 17c, each subcircuit supplying air respectively a light module 2 of the series of N light modules.

La figure 8 est une vue en coupe du conduit d'air 7 de la figure 7 réalisée dans la longueur de conduit d'air. Cette vue en coupe montre que le conduit d'air 7 est divisé en 3 sous-conduits 17a, 17b, 17c. Chaque sous-conduit 17a, 17b, 17c est adapté pour alimenter en flux d'air directement un dissipateur de chaleur 3a, 3b, 3c via l'une des sorties 21 a, 21 b, 21 c. Les dissipateurs de chaleur 3a, 3b, 3c sont ainsi montés en série le long du conduit d'air 7.The figure 8 is a sectional view of the air duct 7 of the figure 7 realized in the length of air duct. This sectional view shows that the air duct 7 is divided into 3 sub-ducts 17a, 17b, 17c. Each sub-conduit 17a, 17b, 17c is adapted to supply airflow directly to a heat sink 3a, 3b, 3c via one of the outlets 21a, 21b, 21c. The heat sinks 3a, 3b, 3c are thus connected in series along the air duct 7.

La figure 9 est une vue en coupe A-A du conduit d'air de la figure 7 réalisée au niveau de la sortie d'air 15 du générateur de flux d'air 5. Dans cette vue en coupe A-A, le conduit d'air 7 est formée par la partie ouverte rapportée 9 et par l'élément structurel de fermeture 11, ici le bloc optique 11.
Le conduit d'air 7 comprend les trois sous-conduits 17a, 17b, 17c qui ont sensiblement une même section de passage dans un mode de réalisation non limitatif. Ainsi, le flux d'air créé par le générateur de flux d'air 5 est divisé équitablement entre les trois sous-conduits 17a, 17b, 17c. Les trois sous-conduits 17a, 17b, 17c vont acheminer le flux d'air vers les trois sorties 21 a, 21 b, 21 c du conduit d'air 7 pour refroidir les trois modules lumineux 2 via leur dissipateur de chaleur associé 3a, 3b et 3c.The figure 9 is a sectional view AA of the air duct of the figure 7 conducted at the air outlet 15 of the air flow generator 5. In this sectional view AA, the air duct 7 is formed by the open open portion 9 and the structural closure member 11, here the optical unit 11.
The air duct 7 comprises the three sub-ducts 17a, 17b, 17c which have substantially the same passage section in a non-limiting embodiment. Thus, the air flow created by the air flow generator 5 is divided equally between the three sub-ducts 17a, 17b, 17c. The three sub-ducts 17a, 17b, 17c will convey the flow of air to the three outlets 21a, 21b, 21c of the air duct 7 to cool the three light modules 2 via their associated heat sink 3a, 3b and 3c.

La figure 10 est une vue en coupe B-B du conduit d'air de la figure 7 réalisée après l'alimentation en air du premier dissipateur de chaleur 3a, c'est-à-dire après le dissipateur le plus proche du générateur du flux d'air 5. Dans cette vue en coupe B-B, le conduit d'air 7 comprend seulement les deux sous-conduits 17b, 17c qui vont acheminer le flux d'air vers les deux sorties 21 b, 21 c du conduit d'air 7 pour refroidir les deux modules lumineux les plus éloignés du générateur de flux d'air 5. Le sous-conduit 17a est non visible dans cette coupe B-B car cette coupe est en aval du premier module lumineux 2.The figure 10 is a sectional view BB of the air duct of the figure 7 performed after the air supply of the first heat sink 3a, that is to say after the heatsink closest to the air flow generator 5. In this sectional view BB, the air duct 7 comprises only the two sub-ducts 17b, 17c which will convey the flow of air to the two outlets 21b, 21c of the air duct 7 to cool the two light modules farthest from the air flow generator 5. The sub-conduit 17a is not visible in this section BB because this section is downstream of the first light module 2.

La figure 11 est une vue en coupe C-C du conduit d'air de la figure 7 réalisée au niveau de la sortie 21C de ce conduit, à savoir au niveau du troisième dissipateur de chaleur 3c le plus éloignée du générateur de flux d'air 5.
La section de cette sortie 21C est fermée et le conduit d'air 7 est délimité par la zone latérale 21 c" et par le bloc optique 1, en particulier la partie 21 c'. A ce niveau, ce conduit d'air 7 ne comprend alors plus qu'un seul conduit 17c adapté pour alimenter en air le troisième dissipateur de chaleur 3c.The figure 11 is a sectional view CC of the air duct of the figure 7 performed at the outlet 21C of this duct, namely at the third heat sink 3c furthest from the air flow generator 5.
The section of this outlet 21C is closed and the air duct 7 is delimited by the lateral zone 21c "and by the optical block 1, in particular the part 21c '. then comprises more than a single conduit 17c adapted to supply air to the third heat sink 3c.

Dans un mode de réalisation non limitatif, le sous-conduit 17c est ici divisé en une pluralité de canaux 23a, 23b, 23c. L'utilisation de plusieurs canaux au niveau de cette sortie 21 c permet un balayage plus uniforme des ailettes du dernier dissipateur de chaleur 3c. L'action des canaux pour le guidage des flux se limitent ainsi au niveau de la sortie 21 c. On distingue donc bien le terme sous-conduit du terme canal. En effet, un sous-conduit débute à la sortie 15 du générateur de flux 5 d'air et achemine un flux d'air jusqu'à un dissipateur de chaleur 3a, 3b, 3c. Un canal débute à l'extrémité d'un sous-conduit la plus proche d'un dissipateur de chaleur pour répartir de façon uniforme le flux d'air dans les ailettes d'un dissipateur de chaleur.In a non-limiting embodiment, the sub-conduit 17c is here divided into a plurality of channels 23a, 23b, 23c. The use of several channels level of this output 21c allows a more uniform scan of the fins of the last heat sink 3c. The action of the channels for guiding the flows is thus limited to the level of the output 21c. There is therefore a good distinction between the sub-term and the term channel. Indeed, a sub-conduit starts at the outlet 15 of the air flow generator 5 and conveys a flow of air to a heat sink 3a, 3b, 3c. A channel begins at the end of a sub-duct closest to a heat sink to evenly distribute the airflow in the fins of a heat sink.

Bien entendu la description de l'invention n'est pas limitée aux modes de réalisation décrits ci-dessus.
Ainsi, dans un mode de réalisation non limitatif, chaque sous-conduit comprend une pluralité de canaux au niveau d'une sortie correspondante. Ainsi, dans un mode de réalisation non limitatif, le dispositif d'éclairage peut comporter plus de trois modules lumineux et donc plus de trois sous-conduits alimentant en air ces modules lumineux.
Ainsi, dans un autre mode de réalisation non limitatif, l'élément structurel de fermeture est seulement le boîtier 1. Dans ce cas, il n'existe pas de bloc optique 11.
Ainsi, dans un autre mode de réalisation non limitatif, le conduit d'air 7 est formé par la partie ouverte rapportée 9 et par deux éléments structurels de fermeture, à savoir le bloc optique 11 et le boîtier 1. Dans ce cas, par exemple la partie 21 c' appartient au boîtier 1 et non plus au bloc optique 11. Dans ce cas chaque élément structurel de fermeture 1 et 11 est adapté pour refermer une partie de la partie ouverte rapportée 9.Of course, the description of the invention is not limited to the embodiments described above.
Thus, in a non-limiting embodiment, each subchannel comprises a plurality of channels at a corresponding output. Thus, in a non-limiting embodiment, the lighting device may comprise more than three light modules and therefore more than three sub-ducts supplying air to these light modules.
Thus, in another non-limiting embodiment, the closure structural element is only the housing 1. In this case, there is no optical block 11.
Thus, in another non-limiting embodiment, the air duct 7 is formed by the open open portion 9 and by two structural closure members, namely the optical unit 11 and the housing 1. In this case, for example the part 21 c 'belongs to the housing 1 and no longer to the optical block 11. In this case each closure structural element 1 and 11 is adapted to close a portion of the open part reported 9.

Ainsi, l'invention décrite présente notamment les avantages suivants :

  • le conduit est délimité en partie par un élément structurel du dispositif d'éclairage. Le coût de réalisation du conduit est ainsi plus faible car on utilise moins de matière rapportée pour réaliser le conduit ;
  • l'intégration de la partie du conduit rapportée est facilitée. En effet, cette partie de conduit s'adapte exactement à l'élément structurel du boîtier complémentaire ;
  • la fixation de la partie rapportée du conduit par des moyens de fixation simples permet une installation et une manipulation aisée de cette partie rapportée dans le boîtier ;
  • le conduit comporte une pluralité de sous-conduits, chaque sous conduit étant adapté pour alimenter en flux d'air un dissipateur de chaleur. Ainsi, à partir d'un seul conduit il est possible de refroidir plusieurs modules lumineux. On limite alors l'encombrement global du conduit dans le boîtier et on évite d'induire une gêne pour l'accès aux autres organes fonctionnels du dispositif d'éclairage logés à l'intérieur du boîtier, comme les modules lumineux.
Thus, the invention described has the following advantages:
  • the duct is delimited in part by a structural element of the lighting device. The duct production cost is thus lower because less material is used to make the duct;
  • the integration of the part of the reported duct is facilitated. Indeed, this portion of conduit fits exactly to the structural element of the complementary housing;
  • fixing the reported portion of the conduit by simple fastening means allows easy installation and handling of this reported part in the housing;
  • the duct comprises a plurality of sub-ducts, each sub duct being adapted to supply airflow to a heat sink. Thus, from a single conduit it is possible to cool several light modules. It then limits the overall size of the conduit in the housing and it avoids inducing an inconvenience for access to other functional organs of the lighting device housed inside the housing, such as light modules.

Claims (15)

Dispositif d'éclairage (10) pour véhicule automobile, ledit dispositif d'éclairage (10) comprenant : - des éléments structurels (1, 11) dont un boîtier (1) ; - au moins un module lumineux (2) logé à l'intérieur dudit boîtier (1), comprenant au moins une source lumineuse coopérant avec une surface optique, ledit module lumineux (2) étant équipé d'un dissipateur de chaleur (3a, 3b, 3c) ; - un générateur d'un flux d'air (5) ; et - un unique conduit d'air (7) adapté pour coopérer avec ledit générateur du flux d'air (5) de sorte à acheminer ledit flux d'air généré vers le dissipateur de chaleur (3) dudit au moins module lumineux (2), ledit conduit d'air (7) étant formé par : - une partie ouverte (9) rapportée dans le boîtier (1) ; et - au moins un élément structurel de fermeture (1, 11) adapté pour refermer tout ou partie de ladite partie ouverte rapportée (9). A lighting device (10) for a motor vehicle, said lighting device (10) comprising: structural elements (1, 11) including a housing (1); - At least one light module (2) housed inside said housing (1), comprising at least one light source cooperating with an optical surface, said light module (2) being equipped with a heat sink (3a, 3b , 3c); - a generator of an air flow (5); and a single air duct (7) adapted to cooperate with said airflow generator (5) so as to convey said stream of generated air to the heat sink (3) of said at least one light module (2) , said air duct (7) being formed by: - an open part (9) reported in the housing (1); and - At least one closure structural member (1, 11) adapted to close all or part of said reported open portion (9). Dispositif d'éclairage (10) selon la revendication 1, dans lequel l'élément structurel de fermeture (1, 11) est un bloc optique (11) disposé dans ledit boîtier (1) et adapté pour recevoir ledit au moins un module lumineux (2).Lighting device (10) according to claim 1, wherein the structural closure element (1, 11) is an optical block (11) disposed in said housing (1) and adapted to receive said at least one light module ( 2). Dispositif d'éclairage (10) selon la revendication 1 ou la revendication 2, dans lequel l'élément structurel de fermeture (1, 11) est ledit boîtier (1).An illumination device (10) according to claim 1 or claim 2, wherein the closure structural member (1, 11) is said housing (1). Dispositif d'éclairage (10) selon l'une quelconque des revendications précédentes 1 à 3, dans lequel la partie rapportée (9) du conduit d'air est fixée par des moyens de fixation (13a, 13b) à l'élément structurel de fermeture (1, 11).Lighting device (10) according to one of the preceding claims 1 to 3, wherein the insert (9) of the air duct is fixed by fixing means (13a, 13b) to the closure structural element (1, 11). Dispositif d'éclairage (10) selon la revendication précédente 4, dans lequel les moyens de fixation (13a, 13b) sont : - des moyens d'encliquetage ; ou - des moyens de collage ; ou - des moyens de vissage. Lighting device (10) according to the preceding claim 4, wherein the fixing means (13a, 13b) are: - latching means; or gluing means; or - Screwing means. Dispositif d'éclairage (10) selon l'une quelconque des revendications précédentes 1 à 5, dans lequel le générateur du flux d'air (5) comporte une sortie d'air (15) et le conduit d'air (7) est branché directement sur cette sortie d'air (15).Lighting device (10) according to one of the preceding claims 1 to 5, wherein the air flow generator (5) has an air outlet (15) and the air duct (7) is connected directly to this air outlet (15). Dispositif d'éclairage (10) selon l'une quelconque des revendications précédentes 1 à 6, dans lequel le conduit d'air (7) s'étend dans le dispositif d'éclairage (10) à partir du générateur de flux d'air (5) et selon une direction sensiblement longitudinale (X).Illumination device (10) according to any one of the preceding claims 1 to 6, wherein the air duct (7) extends in the lighting device (10) from the air flow generator (5) and in a substantially longitudinal direction (X). Dispositif d'éclairage (10) selon l'une quelconque des revendications précédentes 1 à 7, dans lequel le dispositif d'éclairage (10) comprend une série de N modules lumineux (2) et dans lequel le conduit d'air (7) est divisé en N sous-conduits d'air (17a, 17b, 17c), chaque sous-conduit d'air (17a, 17b, 17c) alimentant en air respectivement un module lumineux (2) de la série des N modules lumineux (2).Lighting device (10) according to one of the preceding claims 1 to 7, wherein the lighting device (10) comprises a series of N light modules (2) and wherein the air duct (7) is divided into N air sub-ducts (17a, 17b, 17c), each air sub-duct (17a, 17b, 17c) respectively supplying air to a light module (2) of the series of N light modules ( 2). Dispositif d'éclairage (10) selon l'une quelconque des revendications précédentes 1 à 8, dans lequel le conduit d'air (7) comporte au moins une sortie (21 a, 21 b, 21 c) qui débouche directement sur le dissipateur de chaleur (3a, 3b, 3c) dudit au moins un module lumineux (2).Lighting device (10) according to any one of the preceding claims 1 to 8, wherein the air duct (7) comprises at least one outlet (21a, 21b, 21c) which opens directly on the dissipator of heat (3a, 3b, 3c) of said at least one light module (2). Dispositif d'éclairage (10) selon la revendication précédente 9, dans lequel ladite sortie (21 a, 21 b, 21 c) du conduit d'air (7) présente une section fermée.Lighting device (10) according to the preceding claim 9, wherein said outlet (21a, 21b, 21c) of the air duct (7) has a closed section. Dispositif d'éclairage (10) selon quelconque des revendications précédentes 8 à 10, dans lequel le sous-conduit d'air (17c) qui alimente en air le module lumineux (2) le plus distant du générateur de flux d'air (5) comporte une sortie (21 c) qui est fermée directement par le boîtier (1).A lighting device (10) according to any of the preceding claims 8 to 10, wherein the air sub-duct (17c) which supplies air to the light module (2) furthest from the air flow generator (5). ) has an output (21c) which is closed directly by the housing (1). Dispositif d'éclairage (10) selon la revendication précédente 11, dans lequel la sortie (21 c) dudit sous-conduit d'air (17c) est divisée en une pluralité de canaux (23a, 23b, 23c).An illumination device (10) according to the preceding claim 11, wherein the output (21c) of said air sub-duct (17c) is divided into a plurality of channels (23a, 23b, 23c). Dispositif d'éclairage (10) selon l'une quelconque des revendications 1 à 12, dans lequel la source lumineuse est une puce émettrice semi-conductrice.An illumination device (10) according to any one of claims 1 to 12, wherein the light source is a semiconductor emitter chip. Dispositif d'éclairage (10) selon l'une quelconque des revendications 1 à 13, dans lequel l'élément structurel (1, 11) formant une partie du conduit d'air (7) est en matière plastique.Lighting device (10) according to any one of claims 1 to 13, wherein the structural element (1, 11) forming a portion of the air duct (7) is made of plastic. Dispositif d'éclairage (10) selon l'une quelconque des revendications 1 à 14, dans lequel ledit dispositif d'éclairage (10) est un projecteur.A lighting device (10) according to any one of claims 1 to 14, wherein said lighting device (10) is a projector.
EP17157627.5A 2016-03-02 2017-02-23 Lighting device for motor vehicle comprising light units cooled by means of an air flow generator Active EP3214363B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3715707A1 (en) * 2019-03-27 2020-09-30 Valeo Iluminacion Automotive lighting device and method for manufacturing an automotive lighting device

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD932518S1 (en) * 2017-11-24 2021-10-05 Siemens Aktiengesellschaft Electric motor starter
JP1616481S (en) * 2017-12-11 2018-10-29
JP1619986S (en) * 2018-02-09 2018-12-10
CN108167772A (en) * 2018-02-11 2018-06-15 上海小糸车灯有限公司 LED luminescent systems and car light
JP1622555S (en) * 2018-02-27 2019-01-21 Motor actuator
WO2019190996A1 (en) 2018-03-26 2019-10-03 Milwaukee Electric Tool Corporation High-power battery-powered portable power source
US11271415B2 (en) 2018-05-18 2022-03-08 Milwaukee Electric Tool Corporation Portable power source
USD906240S1 (en) 2018-06-04 2020-12-29 Semikron Elektronik Gmbh & Co. Kg Powercore module
USD909299S1 (en) * 2018-07-12 2021-02-02 Advanced Thermal Control, Inc. Exothermic extermination device
USD900742S1 (en) * 2018-08-02 2020-11-03 Aws Holdings Llc Water generator unit
DE102019104308A1 (en) * 2019-02-20 2020-08-20 HELLA GmbH & Co. KGaA Air duct for cooling a lighting device of a vehicle, cooling device and lighting device
USD933010S1 (en) * 2019-05-29 2021-10-12 Milwaukee Electric Tool Corporation Portable power source
USD984694S1 (en) * 2021-08-25 2023-04-25 Coplus Inc. Vehicle light
USD984695S1 (en) * 2021-08-25 2023-04-25 Coplus Inc. Vehicle light

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070091632A1 (en) * 2005-10-25 2007-04-26 Visteon Global Technologies, Inc. Convectively cooled headlamp assembly
DE102007043961A1 (en) * 2007-09-14 2009-03-19 Automotive Lighting Reutlingen Gmbh Illuminating device, has closed air passage provided with essentially horizontal extension, and conveying unit actively conveying air through air passage, and heat sink partially arranged in air stream that flows through air passage
FR2946730A1 (en) * 2009-06-16 2010-12-17 Valeo Vision Lighting or signaling device i.e. headlight, for motor vehicle, has pipe provided in aeraulic communication with generating apparatus to transfer flow of air toward heat exchanging surface
EP2607784A1 (en) * 2011-12-21 2013-06-26 Automotive Lighting Reutlingen GmbH Headlamp with means for air guidance within the headlamp housing
DE102012205434A1 (en) * 2012-04-03 2013-10-10 Bayerische Motoren Werke Aktiengesellschaft Lighting device for a motor vehicle
FR2997751A1 (en) * 2012-11-08 2014-05-09 Peugeot Citroen Automobiles Sa Front headlight i.e. LED headlight, for motor vehicle, has cooling channel extended from air intake located in front of headlight between dipped and main beam headlamps to respective rear radiators of dipped and main beam headlamps

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6441943B1 (en) * 1997-04-02 2002-08-27 Gentex Corporation Indicators and illuminators using a semiconductor radiation emitter package
CN101470335A (en) * 2007-12-29 2009-07-01 奇菱科技股份有限公司 Integrated heat radiating device for high pressure mercury lamp of projector
JP5160973B2 (en) * 2008-06-23 2013-03-13 株式会社小糸製作所 Vehicle lighting
CN201242106Y (en) * 2008-08-12 2009-05-20 梁允生 Light emitting diode lamp core
DE102009033909A1 (en) * 2009-07-20 2011-01-27 Automotive Lighting Reutlingen Gmbh Headlamp with a cooling device
JP2011048923A (en) * 2009-08-25 2011-03-10 Stanley Electric Co Ltd Lighting fixture for vehicle
KR20110137993A (en) * 2010-06-18 2011-12-26 현대자동차주식회사 Heat radiating structure of led head lamp
CN202056713U (en) * 2010-12-14 2011-11-30 孟强 LED (Light Emitting Diode) headlight of electric vehicles
WO2013071972A1 (en) * 2011-11-17 2013-05-23 Osram Gmbh Led light source module
DE102012202933A1 (en) * 2012-02-27 2013-08-29 Osram Gmbh lighting device
DE102012205435A1 (en) * 2012-04-03 2013-10-10 Bayerische Motoren Werke Aktiengesellschaft Lighting device for a motor vehicle
JP2014013663A (en) * 2012-07-03 2014-01-23 Honda Motor Co Ltd Led lighting apparatus of vehicle
US10591124B2 (en) * 2012-08-30 2020-03-17 Sabic Global Technologies B.V. Heat dissipating system for a light, headlamp assembly comprising the same, and method of dissipating heat
FR2998034A1 (en) * 2012-11-09 2014-05-16 Valeo Vision LIGHTING MODULE WITH UNIT CARD AND DISTINCTIVE DISSIPATORS
FR3003521B1 (en) * 2013-03-21 2016-10-07 Valeo Vision LIGHTING AND / OR SIGNALING MODULE FOR MOTOR VEHICLE
CN203464209U (en) * 2013-04-26 2014-03-05 周路珍 LED head lamp employing air-flow heat-dissipating device for dissipation heat
CN104266127B (en) * 2014-10-15 2018-05-11 李丽京 A kind of distance-light LED car lamp
CN204534369U (en) * 2015-01-09 2015-08-05 广州伊迪电子科技有限公司 A kind of LED automobile lamp
CN104990019B (en) * 2015-07-23 2018-05-11 安徽卡澜特车灯科技有限公司 High efficiency LED dual chip distance-light all-in-one car headlight cooling systems

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070091632A1 (en) * 2005-10-25 2007-04-26 Visteon Global Technologies, Inc. Convectively cooled headlamp assembly
DE102007043961A1 (en) * 2007-09-14 2009-03-19 Automotive Lighting Reutlingen Gmbh Illuminating device, has closed air passage provided with essentially horizontal extension, and conveying unit actively conveying air through air passage, and heat sink partially arranged in air stream that flows through air passage
FR2946730A1 (en) * 2009-06-16 2010-12-17 Valeo Vision Lighting or signaling device i.e. headlight, for motor vehicle, has pipe provided in aeraulic communication with generating apparatus to transfer flow of air toward heat exchanging surface
EP2607784A1 (en) * 2011-12-21 2013-06-26 Automotive Lighting Reutlingen GmbH Headlamp with means for air guidance within the headlamp housing
DE102012205434A1 (en) * 2012-04-03 2013-10-10 Bayerische Motoren Werke Aktiengesellschaft Lighting device for a motor vehicle
FR2997751A1 (en) * 2012-11-08 2014-05-09 Peugeot Citroen Automobiles Sa Front headlight i.e. LED headlight, for motor vehicle, has cooling channel extended from air intake located in front of headlight between dipped and main beam headlamps to respective rear radiators of dipped and main beam headlamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3715707A1 (en) * 2019-03-27 2020-09-30 Valeo Iluminacion Automotive lighting device and method for manufacturing an automotive lighting device

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US20170254501A1 (en) 2017-09-07
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FR3048487A1 (en) 2017-09-08
US10288251B2 (en) 2019-05-14
FR3048487B1 (en) 2019-05-24

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