EP4555253A1 - Dissipateur thermique de module lumineux pour véhicule automobile et module lumineux pour véhicule automobile - Google Patents
Dissipateur thermique de module lumineux pour véhicule automobile et module lumineux pour véhicule automobileInfo
- Publication number
- EP4555253A1 EP4555253A1 EP23741340.6A EP23741340A EP4555253A1 EP 4555253 A1 EP4555253 A1 EP 4555253A1 EP 23741340 A EP23741340 A EP 23741340A EP 4555253 A1 EP4555253 A1 EP 4555253A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat sink
- cooling
- thickness
- fin
- protuberance
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
Definitions
- TITLE Light module heat sink for motor vehicle and light module for motor vehicle
- the invention relates to the field of heat sinks for light modules for motor vehicles. It also relates to light modules for a motor vehicle comprising such a heat sink, and in particular to lighting and/or signaling modules for a motor vehicle.
- the light modules of motor vehicles in particular the lighting and/or signaling modules, comprise components, such as light sources or light source control elements, which emit heat when they are activated.
- components such as light sources or light source control elements, which emit heat when they are activated.
- it is necessary to ensure the cooling of these components. Indeed, overheating of these components, and in particular overheating of the light sources, can degrade the shape of the light beam emitted by the light module.
- heat sinks comprising a plurality of fins which extend in a direction of extension between a base and a free end and whose thickness taken transversely to the direction of extension decreases continuously from the base towards the free end.
- This continuous reduction in thickness of the fins from their base towards their free end reflects a constant clearance angle along each of the two transverse sides of the fins, the clearance angle being defined for each of the two transverse sides of the fins by the angle formed between the respective transverse side of the fin and the direction of extension of the fin.
- the draft angle typically has a value greater than or equal to 2°, which makes it possible to produce a reduction in the thickness of the fins making it possible to inject the heat sink and to unmold the heat sink easily.
- a heat sink has the disadvantage of being too bulky to be integrated into certain light modules whose size must be particularly limited.
- the invention aims to overcome at least one of the disadvantages of the aforementioned state of the art. More particularly, the invention aims to provide a compact heat sink, making it possible to dissipate the heat emitted by the components of the light module in which it is intended to be mounted, and easy to manufacture, in particular easy to inject and demold. The invention also aims to propose a light module comprising such a heat sink.
- the invention proposes a light module heat sink for a motor vehicle comprising at least one cooling protuberance extending between a base and a free end in a direction of extension, and having a thickness according to a direction transverse to the direction of extension, the thickness of the cooling protuberance decreasing from the base to the free end.
- the heat sink is remarkable in that the cooling protuberance comprises a first portion, and a second portion, the first portion being located between the base and the second portion, and the second portion being located between the first portion and the free end , the reduction in the thickness of the cooling protrusion being greater in the second portion than in the first portion.
- the thickness of the cooling protuberance greater in the second portion than in the first portion is meant that, if we consider a part of the first portion of a given height taken in the direction extension, and a part of the second portion of a height identical to the given height of the part of the first portion, each of the first and second parts having a lower end turned towards the base of the cooling protuberance and an end upper facing the free end of the cooling protuberance, then the difference between the thickness of the cooling protuberance at the level of the lower end of the part of the first portion and the thickness of the cooling protuberance at level of the upper end of the part of the first portion, is greater than the difference between, the thickness of the cooling protuberance at the level of the lower end of the part of the second portion and the thickness of the protuberance cooling at the upper end of the part of the second portion.
- the reduction in thickness of the cooling protuberance from its base towards its free end is non-constant. Consequently, it is possible to design a base of the protuberance sufficiently thick to guarantee the passage of the material forming the heat sink into the mold during injection, while maintaining a limited footprint. Indeed, even though the thickness of the base of the protuberance is greater, and therefore more bulky than for a heat sink with a constant draft angle, for example less than 2° all along the transverse sides of the cooling protuberance, the fact of having a second portion with a greater reduction in thickness than in the first portion, makes it possible to sufficiently reduce the thickness of the cooling protuberance moving away from the base.
- the heat sink comprises a plurality of cooling protuberances along the transverse direction.
- the invention it is possible to position more cooling protuberances in the same space. Indeed, to position more cooling protuberances in the same footprint, the distance between two successive cooling protuberances at their base, taken in the transverse direction, is reduced. However, thanks to the greater reduction in the thickness of the cooling protuberances in the second portion than in the first portion, the distance between two successive cooling protuberances at their second portion is greater than the distance between these two protuberances successive cooling at the level of the first portion. Thus, at the level of the second portion, and therefore approaching the free ends of the cooling protuberances, the distance between the two cooling protuberances is sufficiently large to promote convection between the cooling protuberances and thus promote radiation towards the exterior of the heat sink.
- the efficiency of the heat sink is therefore preserved in a smaller footprint than that of the prior art.
- the bases of two successive cooling protuberances are spaced along the transverse direction by the same distance.
- the cooling protuberance is formed by a fin or a pin.
- the cooling protuberance comprises a third portion located between the second portion and the free end, the reduction in the thickness of the cooling protuberance in the third portion being less severe than the reduction in the thickness of the cooling protuberance in the second portion.
- the second portion is then located between the first portion and the third portion.
- the reduction in the thickness of the cooling protuberance in the third part may be identical to the reduction in the thickness of the cooling protuberance in the first portion.
- the reduction in the thickness of the cooling protuberance is constant in the first portion and in the second portion.
- the cooling protuberance comprises a third portion
- the reduction in the thickness of the cooling protuberance can also be constant in the third portion.
- the cooling protuberance comprises a first transverse side and a second transverse side, opposite the first transverse side.
- the first and second transverse sides correspond to the edges of the cooling protuberance taken on a section of the cooling protuberance by a plane comprising the direction of extension and the transverse direction.
- the first portion comprises a first primary relief angle formed between the first transverse side of the cooling protuberance in the first portion and the direction of extension
- the second portion comprises a second primary relief angle formed between the first transverse side of the cooling protrusion in the second portion and the extension direction
- the first primary draft angle is less than the second primary draft angle
- the cooling protuberance comprises a third portion
- the third portion then comprises a third primary draft angle formed between the first transverse side of the cooling protuberance in the third portion and the direction of extension, the third angle primary draft being less than the second primary draft angle, and possibly identical to the first primary draft angle.
- the draft angle along a second transverse side of the cooling protuberance, opposite the first side transverse is constant.
- constant we mean that it is identical for each portion.
- the first transverse side is symmetrical to the second transverse side with respect to an axis of symmetry parallel to the direction of extension.
- the draft angle along the second transverse side of the cooling protuberance follows the same evolution as the draft angle along the first transverse side of the cooling protuberance.
- the first portion comprises a first secondary relief angle formed between the second transverse side of the cooling protuberance in the first portion and the extension direction
- the second portion comprises a second secondary relief angle formed between the second transverse side of the cooling protuberance in the second portion and the direction of extension.
- the first primary draft angle is the same as the first secondary draft angle
- the second primary draft angle is the same as the second secondary draft angle.
- the cooling protuberance comprises a third portion
- the third portion then comprises a third secondary draft angle formed between the second transverse side of the cooling protuberance in the third portion and the direction of extension, and the third Primary draft angle is the same as the third secondary draft angle.
- the heat sink comprises at least one upper cooling protuberance and one lower cooling protuberance, and the upper and lower cooling protuberances are aligned and extend in the same direction of extension, in different directions. opposites.
- each of the upper and lower cooling protuberances has a base and a free end, and the base of each of the upper and lower cooling protuberances rests on an opposite face in the direction of extension of a base of the heatsink.
- the upper and lower cooling protuberances therefore extend on either side of the base.
- the upper and lower cooling protuberances each have a height taken according to the direction of extension. According to a first variant, the height of the upper cooling protuberance is equal to the height of the lower cooling protuberance. According to a second variant, the height of the upper cooling protuberance is different from the height of the lower cooling protuberance.
- the height of the cooling protuberances is thus adapted to the space available in the light module in which the heat sink is integrated.
- the heat sink comprises a joint plane extending in a longitudinal plane, perpendicular to the direction of extension.
- the joint plane corresponds to the junction zone of the two parts of the mold.
- the upper and lower fins extend on either side of the joint plane.
- the base of the heat sink is in the joint plane.
- the invention proposes a light module for a motor vehicle comprising a heat sink according to the first object of the invention.
- the light module comprises:
- At least one light source configured to emit a light beam
- the heat sink is configured to cool the at least one light source.
- the printed circuit board is placed on the heat sink.
- the heat sink is thus in indirect contact with the light source(s), which allows effective cooling of the light sources.
- the joint plane of the heat sink is parallel to the printed circuit board.
- Figure 1 represents a heat sink according to a first object of the invention, comprising a plurality of fins
- Figure 2 shows a section of a rear view of the heat sink shown in Figure 1;
- Figure 3 schematically represents the fins of the heat sink of Figures 1 and 2;
- Figure 4 schematically represents an alternative fin of a heat sink according to a variant of the first object of the invention
- Figure 5 represents a light module for a motor vehicle according to a second object of the invention comprising a heat sink as described in Figures 1 to 3, a reflector and a projection lens;
- Figure 6 represents the light module of Figure 5 in which the reflector has been removed revealing a printed circuit board and light sources.
- longitudinal direction L will mean the direction in which the vehicle is moving, oriented from rear to front
- transverse direction T will mean the direction extending transversely to the vehicle and which is perpendicular in the longitudinal direction L
- vertical direction V we mean the direction extending from bottom to top of the vehicle and which is perpendicular to the longitudinal direction L and the transverse direction T.
- Figure 1 represents a heat sink 10 of a light module for a motor vehicle.
- the heat sink 10 is intended to be mounted in a light module 20, itself intended to be mounted in a motor vehicle.
- the longitudinal L, transverse T and vertical V orientations given with reference to the heat sink 10 and the light module 20 correspond to the orientation that the heat sink 10, and the light module 20 have when they are mounted on the vehicle.
- the heat sink 10 comprises a plurality of cooling protuberances.
- the cooling protuberances are formed by fins 100. It is understood that other cooling protuberances could be used, such as for example pins. In the remainder of the description, we will use the term fins to refer to the cooling protuberances of the heat sink 100.
- the heat sink 10 comprises a base 11 from which the fins 100 extend.
- each fin 100 extends between a base 110 and a free end 111 in a direction of extension E (shown in Figure 2), the base 1 10 of the fin being located on the side of the base 1 1 of the heat sink 10.
- the direction of extension E of the fins 100 corresponds to the direction vertical V.
- the heat sink 10 comprises a joint plane P extending in a longitudinal plane, perpendicular to the direction of extension E.
- the joint plane P corresponds to the plane in which the two parts of the mold used during the injection of the heat sink 10.
- the base 1 1 of the heat sink 1 1 is in the joint plane P.
- the fins 100 of the heat sink 10 comprise upper fins 100a and lower fins 100b.
- the base 1 10 of each of the upper fins 100a and lower 100b rests on an opposite face in the direction of extension E of the base 11 of the heat sink 10.
- the upper fins 100a and the lower fins 100b thus extend on either side and on the other side of the base 1 1 of the heat sink 10.
- the upper fins 100a extend from their base 110 at the level of an upper face of the base 11 upwards in the vertical direction V to their free end 111
- the lower fins 100b extend from their base 110 at the level of a lower face of the base 11, opposite the upper face of the base 11 in the direction of extension E, downwards in the vertical direction V to their free end 1 1 1.
- each upper fin 100a extends in the same direction of extension E and in an opposite direction to a lower fin 100b.
- an upper fin 100a could not be aligned with a lower fin 100b, and conversely, a lower fin 100b could not be aligned with an upper fin 100a.
- the heat sink 10 could include only upper fins 100a or only lower fins 100b.
- Each fin 100 includes a height in the extension direction E.
- the height of the fins 100 depends on the space available in the light module in which the heat sink 10 is intended to be mounted.
- the upper fins 100a and/or the lower fins 100b can have all the same height ha.
- the upper fins 100a and/or the lower fins 100b may have different heights ha.
- several upper fins 100a have the same height ha, while other upper fins 100a have a different height ha, and all the lower fins 100b have the same height hb , it being understood that some lower hb fins could also have a different height.
- the fins 100 and therefore the upper fins 100a and lower fins 100b, are distributed along a direction transverse to the direction of extension E.
- the direction transverse to the direction of extension E corresponds to the transverse direction T.
- Figure 2 represents a rear view in section in a plane defined by the direction of extension and the transverse direction, corresponding in this example respectively to the vertical direction and the transverse direction, of the heat sink 10.
- Each fin 100 has a thickness e in the transverse direction. This thickness e is particularly visible in Figure 2. This thickness e shows a reduction going from the base 1 10 of the fin 100 to the free end 1 1 1 of the fin 100. In particular, the thickness e of each fin 100 is larger near the base 1 10 of the fin 100 than near the free end 1 1 1 of the fin 100.
- the fins 100 comprise a first portion 101, a second portion 102.
- the fins 100 further comprise a third portion 103.
- the first portion 101 is located between the base 1 10 and the second portion 102
- the second portion 102 is located between the first portion 101 and the third portion 103
- the third portion 103 is located between the second portion 102 and the free end 1 1 1.
- the variation in thickness e of the fin is different.
- the reduction in the thickness e of each fin 100 is greater in the second portion 102 than in the first portion 101.
- the reduction in the thickness e of the fin 100 in the third portion 103 is less than the reduction in the thickness e of the fin 100 in the second portion 102.
- the reduction in the thickness e of the fin 100 in the third portion 103 is identical to the reduction in the thickness e of the fin 100 in the first portion 101.
- the fins 100 of the heat sink 10 are represented schematically in Figure 3.
- a first part P1 of the first portion 101 we can consider a first part P1 of the first portion 101, a second part P2 of the second portion 102 and a third part P3 of the third portion 103, each of these first, second and third parts P1, P2, P3 having a height H, taken in the direction of extension E of the fin 100, identical.
- Each of the first, second and third parts P1, P2, P3 are delimited by an upper end P1 sup, P2sup, P3sup facing the free end 1 1 1 of the fin 100 and a lower end P1 inf, P2inf, P3inf turned towards the base 110 of the fin 100.
- Each upper end P1 sup, P2sup, P3sup comprises a thickness e1 h, e2h, e3h taken in the transverse direction
- each lower end P1 inf, P2inf, P3inf comprises a thickness e1 b, e2b, e3b taken in the transverse direction.
- each fin 100 in the second portion 102 results in the fact that the difference between the thickness e1 b of the fin 100 at the level of l the lower end P1 inf of the first part P1 and the thickness e1 h of the fin 100 at the level of the upper end P1 sup of the first part P1 is greater than the difference between the thickness e2b of the fin 100 at the level of the lower end P2inf of the second part P2 and the thickness e2h of the fin 100 at the level of the upper end P2sup of the second part P2.
- the reduction in the thickness e of the fin 100 in the third portion 103 is less severe than the reduction in the thickness e of the fin 100 in the second portion 102 results in the fact that the difference between the the thickness e2b of the fin 100 at the level of the lower end P2inf of the second part P2 and the thickness e2h of the fin 100 at the level of the upper end P2sup of the second part P2 is less than the difference between the thickness e3b of the fin 100 at the level of the lower end P3inf of the third part P3 and the thickness e3h of the fin 100 at the level of the upper end P3sup of the third part P3.
- the reduction in the thickness e of the fin 100 in the third portion 103 identical to the reduction in the thickness e of the fin 100 in the first portion 101 is translated by the fact that the difference between the thickness e1 b of the fin 100 at the level of the lower end P1 inf of the first part P1 and the thickness e1 h of the fin 100 at the level of the upper end P1 sup of the first part P1 is equal to the difference between the thickness e3b of the fin 100 at the level of the lower end P3inf of the third part P3 and the thickness e3h of the fin 100 at the level of the upper end P3sup of the third part P3.
- the reduction in thickness e of the fins 100 from their base 110 towards their free end 110 is therefore not constant, which makes it possible to have a base 110 wide enough to guarantee the passage of the material forming the heat sink 10 in the mold during injection, while reducing more significantly the thickness of the fin 100 in the second portion 102 in order to obtain a less thick fin 100 more quickly as we approach the free end 1 1 1 of the fin 100.
- the fins 100 are thinner more quickly thanks to the greater reduction in thickness in the second portion 102, it is possible to position the fins 100 closer to each other at level of their base 1 10, because ultimately, the distance between the fins 100 increases more quickly at the level of the second portion 102.
- the reduction in the thickness e of the fin 100 is constant.
- the difference between the thickness e1 b of the fin 100 at the level of the lower end P1 inf of the first part P1 and the thickness e1 h of the fin 100 at the level of the upper end P1 sup of the first part P1 is identical.
- the difference between the thickness e2b of the fin 100 at the level of the lower end P2inf of the second part P2 and the thickness e2h of the fin 100 at the upper end P2sup of the second part P2 is identical.
- the difference between the thickness e3b of the fin 100 at the level of the lower end P3inf of the third part P3 and the thickness e3h of the fin 100 at the upper end P3sup of the third part P3 is identical.
- Each fin 100 comprises a first transverse side 120 and a second transverse side 130, opposite the first transverse side 120.
- the first and second transverse sides correspond to the edges of the fin 100 taken from a section of the fin 100 by a plane comprising the extension direction E and the transverse direction T, corresponding to the sectional plane of Figure 2, and to the plane in which the fins 100 are represented schematically in Figure 3.
- the first transverse side 120 is symmetrical to the second transverse side 130 with respect to an axis of symmetry S parallel to the direction of extension
- the first portion 101 comprises a first primary draft angle it formed between the first transverse side 120 of the fin 100 in the first portion 101 and the direction of extension E
- the second portion 102 comprises a second primary relief angle i2 formed between the first transverse side 120 of the fin 100 in the second portion 102 and the extension direction E
- the third portion 103 comprises a third primary relief angle i3 formed between the first transverse side 120 of the fin 100 in the third portion 103 and the direction of extension E.
- the first primary draft angle is less than the second primary draft angle i2, and the third primary draft angle i3 is less than the second primary draft angle i2, and in particular, in the example illustrated, the third angle primary draft angle i3 is identical to the first primary draft angle il.
- the draft angle along the second transverse side 130 of each fin 100 follows the same evolution as the draft angle along the first transverse side 120 of the fin.
- the first portion 101 comprises a first secondary relief angle it' formed between the second transverse side 130 of the fin 100 in the first portion 101 and the direction of extension E
- the second portion 102 comprises a second angle of secondary relief i2' formed between the second transverse side 130 of the fin 102 in the second portion 102 and the direction of extension
- the third portion 103 comprises a third secondary relief angle i3' formed between the second transverse side 130 of the fin in the third portion 103 and the direction of extension E.
- the first primary draft angle it is identical to the first secondary draft angle it'
- the second primary draft angle i2 is identical to the second secondary draft angle i2'
- the third primary draft angle i3 is identical to the third secondary relief angle i3'.
- FIG. 4 schematically represents an alternative shape of the fins
- the fins 100 shown in Figure 4 differ from those shown in the other figures only by the fact that the reduction in the thickness e of the fin 100 in the first portion 101 and in the second portion 102 is non-constant. In the example illustrated, the reduction in thickness e of the fins 100 is constant for the third portion 103.
- the difference between the thickness e1 b of the fin 100 at the level of the lower end P1 inf of the first part P1 and the thickness e1 h of the fin 100 at the upper end P1 sup of the first part P1 is different depending on the first part P1 considered.
- the difference between the thickness e2b of the fin 100 at the level of the lower end P2inf of the second part P2 and the thickness e2h of the fin 100 at the level of the end upper P2sup of the second part P2 is different depending on the second part P2 considered.
- the non-constant reduction in the thickness e of the fins 100 in the first portion 101 and in the second portion 102 also results in the fact that the first and second transverse sides 120, 130 are formed by a continuous curve for the first and second portions.
- the first portion 101 comprises a first primary relief angle it formed between the tangent to the first transverse side 120 of the fin 100 in the first portion 101 and the direction of extension E
- the second portion 102 comprises a second angle of primary draft i2 formed between the tangent to the first transverse side 120 of the fin 100 in the second portion 102 and the direction of extension E.
- the first primary draft angle it and the second draft angle i2 evolve along the first transverse side 120.
- the first primary draft angle it and the second primary draft angle i2 increase as the tangent to the first transverse side 120 considered moves away from the base 11 of the heat sink 10.
- the third primary draft angle i3 is less than the second primary draft angle i2.
- the second portion 102 can be defined by a portion in which all of the second primary relief angles i2 are less than the third primary relief angle i3. The portion then located between the second portion 102 thus defined and the base 110 of the fin 100 then forms the first portion 101.
- the draft angle along the second transverse side 130 of each fin 100 follows the same evolution as the draft angle along the first transverse side 120 of the fin.
- Figures 5 and 6 show a light module 20 for a motor vehicle in which the heat sink 10 is mounted.
- This light module 20 is intended to be mounted in a motor vehicle headlight.
- the light module 20 comprises a plurality of light sources 201 configured to emit a light beam, as well as a printed circuit board 202 on which the light sources 201 are arranged.
- the heat sink 10 makes it possible to cool the sources of light 201.
- the printed circuit board 202 rests on the heat sink 10. In this example, the joint plane P of the heat sink 10 is parallel to the printed circuit board 202.
- the light module 20 comprises a first optical element in the form of a reflector 203 and a second optical element in the form of a projection lens 204.
- the reflector 203 is intended to receive the light beam emitted by the sources of light 201 and to reflect this light beam towards the projection lens 204.
- the projection lens 204 makes it possible to project the light beam reflected by the reflector 203 onto the road on which the vehicle is traveling.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2207104A FR3137743B1 (fr) | 2022-07-11 | 2022-07-11 | Dissipateur thermique de module lumineux pour véhicule automobile et module lumineux pour véhicule automobile |
| PCT/EP2023/069030 WO2024013087A1 (fr) | 2022-07-11 | 2023-07-10 | Dissipateur thermique de module lumineux pour véhicule automobile et module lumineux pour véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4555253A1 true EP4555253A1 (fr) | 2025-05-21 |
Family
ID=83280542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23741340.6A Pending EP4555253A1 (fr) | 2022-07-11 | 2023-07-10 | Dissipateur thermique de module lumineux pour véhicule automobile et module lumineux pour véhicule automobile |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20260002654A1 (fr) |
| EP (1) | EP4555253A1 (fr) |
| CN (1) | CN119497805A (fr) |
| FR (1) | FR3137743B1 (fr) |
| WO (1) | WO2024013087A1 (fr) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI449137B (zh) * | 2006-03-23 | 2014-08-11 | 製陶技術創新製陶工程股份公司 | 構件或電路用的攜帶體 |
| DE102007063542B4 (de) * | 2007-12-21 | 2010-09-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Scheinwerfer für Fahrzeuge |
| KR101427119B1 (ko) * | 2012-12-10 | 2014-08-06 | 주식회사 영동테크 | 마그네슘 압출물 히트싱크를 가진 고전력 led조명장치 |
| FR3032023B1 (fr) * | 2015-01-22 | 2017-02-10 | Valeo Vision | Module lumineux pour vehicule automobile |
| JP6451758B2 (ja) * | 2017-02-24 | 2019-01-16 | マツダ株式会社 | 車両用灯具 |
| DE102017110877A1 (de) * | 2017-05-18 | 2018-11-22 | Automotive Lighting Reutlingen Gmbh | Lichtmodul eines Kraftfahrzeugscheinwerfers und Kraftfahrzeugscheinwerfer mit einem solchen Lichtmodul |
| AT520072B1 (de) * | 2017-07-28 | 2019-01-15 | Zkw Group Gmbh | Kühlkörper und Fahrzeugscheinwerfer |
| FR3103877B1 (fr) * | 2019-11-28 | 2022-07-08 | Valeo Vision | Elément optique et module lumineux d’un véhicule automobile équipé d’un tel élément optique |
-
2022
- 2022-07-11 FR FR2207104A patent/FR3137743B1/fr active Active
-
2023
- 2023-07-10 US US18/993,297 patent/US20260002654A1/en active Pending
- 2023-07-10 EP EP23741340.6A patent/EP4555253A1/fr active Pending
- 2023-07-10 WO PCT/EP2023/069030 patent/WO2024013087A1/fr not_active Ceased
- 2023-07-10 CN CN202380052261.5A patent/CN119497805A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN119497805A (zh) | 2025-02-21 |
| WO2024013087A1 (fr) | 2024-01-18 |
| FR3137743B1 (fr) | 2024-08-02 |
| FR3137743A1 (fr) | 2024-01-12 |
| US20260002654A1 (en) | 2026-01-01 |
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