EP2730837B1 - Beleuchtungsmodul mit verschiedenen Wärmesenken montiert auf einer gemeinsamen Platine - Google Patents

Beleuchtungsmodul mit verschiedenen Wärmesenken montiert auf einer gemeinsamen Platine Download PDF

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Publication number
EP2730837B1
EP2730837B1 EP13190870.9A EP13190870A EP2730837B1 EP 2730837 B1 EP2730837 B1 EP 2730837B1 EP 13190870 A EP13190870 A EP 13190870A EP 2730837 B1 EP2730837 B1 EP 2730837B1
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EP
European Patent Office
Prior art keywords
circuit board
printed circuit
light
control device
module according
Prior art date
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Active
Application number
EP13190870.9A
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English (en)
French (fr)
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EP2730837A1 (de
Inventor
Eric Mornet
Jonathan Blandin
Christine Roucoules
Benoît Reiss
Christophe Thullier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
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Valeo Vision SAS
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Publication of EP2730837A1 publication Critical patent/EP2730837A1/de
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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
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • 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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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

Definitions

  • the technical sector of the present invention is that of lighting and / or signaling modules capable of generating a light beam.
  • a lighting module finds a particular application in a vehicle headlight, in particular an automobile.
  • Motor vehicles are typically equipped with lighting and / or signaling device, called projector.
  • the latter uses a light source which, until recently, was made by means of an incandescent lamp.
  • a new light source technology replaces these incandescent lamps: they are electroluminescent diodes.
  • the latter are able to provide a sufficient luminous performance to ensure a photometric function and have the advantage of being reduced in size.
  • These light-emitting diodes used as a light source also have the advantage of reducing the power consumption compared to the same optical function provided by an incandescent lamp. It is therefore understood from the foregoing reasons why motor vehicle manufacturers are applicants for this new technology.
  • these light-emitting diodes are electrically controlled by a control device, installed near the assembly mentioned above.
  • a first disadvantage lies in the cost that generates the use of a cable and electrical connectors.
  • a second disadvantage lies in the impossibility of verifying and / or adapting the proper functioning of the control device and the electroluminescent diodes prior to assembly in the projector. It should be noted in this regard that the manufacturing dispersion of the light emitting diodes requires a pairing thereof with their control device, pairing which can be achieved only when the control device is connected to the light emitting diodes. Finally, the assembly of the cable on the electrical connectors is a manually performed operation, which can generate defects leading to rejection of the projector.
  • control device and the light-emitting diodes are assembled on the same printed circuit board, said card then being coupled to a single heat sink.
  • the light flux generated by the light-emitting diodes is highly dependent on the temperature of these light-emitting diodes.
  • the combination of the control device and the light-emitting diodes generates a large quantity of calories which must be evacuated, so as to maintain the temperature of the light-emitting diodes at a level compatible with the expected luminous flux.
  • the single heat sink then has a large footprint, for example twice as much space required to ensure the cooling only light emitting diodes. This congestion thus poses integration difficulties inside the volume of the projector, this volume being particularly limited.
  • One of the aims of the present invention is therefore to solve the disadvantages described above by reducing the size of the dissipation elements without using a cable to connect the light emitting diodes to their control device.
  • Such a goal is achieved mainly by assembling the light-emitting diodes and their control device on the same printed circuit board, while providing two separate and separate heat dissipation means, secured to one another by the circuit board. printed.
  • a unitary module comprising a light ray emission zone and an electric control zone for the emission or extinction of these light rays, such a module comprising a first cooling device and a second cooling device which have reduced dimensions facilitating the integration of such a module in a motor vehicle headlight.
  • Another object of the invention is to improve the thermal performance of the dissipation elements and to optimize their size and bulk.
  • the subject of the invention is a lighting and / or signaling module comprising at least one light source and a control device for said light source, both of which are arranged on the same printed circuit board, said module comprising a first heat sink for dissipating calories generated by said light source and a second heat sink for dissipating calories generated by the controller, the first heat sink which is attached to a first portion of the printed circuit board and the second heat sink which is attached to a second portion of the printed circuit board separate from the first portion are distinct, i.e. physically separated, and connected to each other by the printed circuit board.
  • the circuit board includes at least one thermal insulation means disposed between the first portion and the second portion, said thermal insulation means being at least formed by at least one hole through the printed circuit board through which an air flow is able to pass.
  • the thermal insulation between the two portions is increased in order to form a thermal barrier.
  • the invention thus makes it possible to limit the transfer of calories from the pilot portion which can accept higher temperatures towards the lighting part, the heat transfer occurring naturally from the highest temperatures to the lowest temperatures.
  • the at least one hole passing through the printed circuit board through which an air flow is able to pass has the advantage, in the case of a generally horizontal circuit, of facilitating the evacuation of air from the first heat sink, so as not to limit its performance, and to limit thermal transfer by conduction between the two portions of the printed circuit board.
  • first heat sink and the second heat sink line the hole.
  • first and second heat sinks are disposed on either side of the hole. This ensures that the flow of air flowing through the hole is closer to the cooling elements so as to promote heat exchange between the latter, the first heat sink and / or the second heat sink.
  • the hole has a perimeter, in particular a rectangular-shaped periphery, the first portion and the second portion being connected to each other by at least a third portion which borders the hole.
  • the rectangular shape of the hole increases the thermal insulation and circulation of the air flow, while limiting the dimensions of the third portion.
  • the third portion carries at least a portion of an electrically conductive track connecting the control device to the light source.
  • a surface of the third portion covered by the electrically conductive track represents at most 20% of the surface of the third portion.
  • the printed circuit is made of at least one material having a low thermal conductivity, in particular a thermal conductivity of less than 5 W / m / ° C, preferably less than 1 W / m / ° C.
  • a thermal conductivity of less than 5 W / m / ° C, preferably less than 1 W / m / ° C.
  • the printed circuit is made of a rigid material and having a high elastic limit, especially a material having a Young's modulus greater than 10GPa, for example a fiber material.
  • a material having a Young's modulus greater than 10GPa for example a fiber material.
  • a FR4 printed circuit board made of epoxy resin and glass fiber, this material having a thermal conductivity of 0.35 W / m / ° C.
  • the light source comprises at least one light emitting diode secured to a first portion of the printed circuit board.
  • the light source, the first portion and the first sink are superimposed in this order.
  • the control device comprises at least one electronic component secured to the second portion of the printed circuit board separate from the first portion. This is the same printed circuit board which receives in a first zone the light source and in a second zone the means of controlling this light source, these two zones being distinct, so as to limit a thermal transfer of one area to another.
  • control device the second portion and the second heat sink are superimposed in this order.
  • the first heat sink comprises a means of recovery of mechanical forces generated by the control device.
  • Such stress recovery means limits the generation of mechanical stresses at the third portion which connects the first portion to the second portion of the printed circuit board.
  • the mechanical stress recovery means comprises at least one protrusion issuing from the first heat sink and a free end of which is integral with the second portion of the printed circuit board carrying at least one constituent electronic component. of the control device.
  • the lighting and / or signaling module according to the invention is particularly adapted to the formation of a lighting beam of a motor vehicle, for example code or road type.
  • Such a module according to the invention may also comprise at least one reflection means and / or a projection means, both carried by the heat sink.
  • This arrangement has the advantage of forming a unitary module that brings together all the components necessary for the formation of a light beam.
  • the invention also covers a motor vehicle headlamp, in particular a front headlamp, comprising at least one lighting and / or signaling module incorporating one or more of the features presented above.
  • a first advantage of the invention lies in the removal of the cable and electrical connectors that connect the light emitting diodes to the control device.
  • the electrical connection between these elements is thus provided directly by the printed circuit board.
  • the connectivity between these elements, the proper operation and the pairing thereof can then be checked and / or performed before mounting in the projector.
  • Another advantage lies in the possibility of reducing and optimizing the size of the elements necessary for the heat dissipation, by affecting a first dissipation means dimensioned solely for the cooling of the light-emitting diodes, and by affecting a second physically separate and isolated heat dissipation means thermally the first dissipation means, the second dissipation means being dimensioned only for the cooling needs of the electronic component or components constituting the control device of these light emitting diodes.
  • the figure 1 illustrates a lighting and / or signaling module 1 according to the invention.
  • module For the sake of convenience, the description below uses the term module to denote in its entirety the lighting module and / or signaling according to the invention.
  • Such a module finds a particularly interesting application in a lighting and / or signaling device for a vehicle, especially a motor vehicle.
  • This lighting and / or signaling device may, for example, be a rear light of this vehicle, but it may also be a front projector of said vehicle, in order to achieve in particular a lighting function of the code type and / or road type.
  • such a module 1 forms a separate subassembly of the projector, before its assembly in the latter. It comprises a multiplicity of parts among which there is at least one light source 2 and a control device 3 of this light source 2.
  • the module 1 comprises four light sources 2 whose ignition, extinction and / or the state are controlled by the same control device 3.
  • a light source 2 is in particular formed by a light emitting diode installed on an upper face of a printed circuit board 4.
  • this or these light-emitting diodes are secured, for example by welding, to the printed circuit board 4.
  • the control module 3 is here formed by a plurality of electronic components symbolically represented by the reference numeral 5. These electronic components are welded to the upper face of the printed circuit board 4 and manage the flow of electric current to the one or more electroluminescent diodes.
  • the light source 2 and the control device 3 are assembled on the same printed circuit board 4.
  • the latter is formed, for example, by a unitary electrically insulating substrate between a first portion 6 of the printed circuit board 4 where is arranged the light source 2 and a second portion 7 of the printed circuit board 4 where the control device 3 is located, the first and the second portions being formed by distinct zones of the printed circuit board.
  • the electrically insulating substrate carries on one and / or the other of these electrically conducting track faces charged with conveying an electric current between the electronic components 5 and between the control device 3 and the source. bright 2.
  • the module 1 further comprises a first heat sink 8 intended to dissipate calories generated by the light source or sources 2, and a second heat sink 9 intended to dissipate calories generated by the control device 3, these two cooling means whose function is to collect the calories and disperse them in a surrounding air flow, referenced 10.
  • first 8 and second 9 heat sinks are two separate rooms and separated from each other.
  • the first heat sink 8 comprises a substantially planar base 11 from which is derived a plurality of cooling ribs 12 which define circulation channels of the air flow 10.
  • Such heat sink is particularly a massive piece since the base 11 and the cooling ribs 12 are made simultaneously from the same material, for example an aluminum alloy.
  • the first portion 6 of the printed circuit board 4 bears against the base 11 of the first heat sink 8, so as to dissipate the calories generated by the light-emitting diodes.
  • the first heat sink 8 comprises a receiving zone 13 of a reflection means not shown in this figure.
  • the first heat sink 8 further comprises two branches 14 which form a fixing area of a projection means, also not shown in this figure.
  • the first heat sink 8 comprises at least one securing point 15 for fixing the module 1 inside the projector.
  • a first attachment point 16 is formed in a flank perpendicular to the base 11 and perpendicular to the plurality of cooling ribs 12.
  • a second attachment point 17 is provided at the free end of a fastening arm 18 from the first heat sink 8, such an arm also provided with cooling ribs 12.
  • the first attachment point 16 and the second attachment point 17 are formed by a through-hole.
  • the second portion 7 of the printed circuit board 4 bears against the second dissipator 9, so as to dissipate the calories generated by the control device 3, and more particularly by the electronic components 5 of the control device.
  • this second dissipator 9 is formed by a metal plate made of steel or an aluminum alloy.
  • This second dissipator 9 comprises a plate 18 against which the second portion 7 is plated, and a plurality of fins 19 which extend in a plane perpendicular to the plane of extension of the plate 18.
  • the fins are formed unitarily with the plate 18, and extend from a slice of the latter.
  • the plate 18 only one of the sides of the plate 18 is provided with fins 19, but it is also possible to provide fins on a second side and / or a third side and / or a fourth side delimiting a periphery of the plate 18.
  • the second heat sink 9 is secured to the printed circuit board by a multiplicity of fixing pads 20, which in this particular example are three in number.
  • the relative position of the first heat sink 8 with respect to the second heat sink 9 is managed by the printed circuit board 4.
  • the latter thus provides a mechanical connection between the first heat sink 8 and the second heat sink 9, this mechanical connection being operated by the substrate constituting the printed circuit board.
  • the first heat sink 8 and the second heat sink 9 are distant from each other, but they are nevertheless secured by means of the printed circuit board 4.
  • the module 1 comprises at least one thermal insulation means 21 disposed between the first portion 6 and the second portion 7.
  • This thermal insulation means 21 is at least implemented by at least one first hole 22 passing through the printed circuit board 4.
  • a first hole is formed at a third portion 23 of the printed circuit board located between the first portion 6 and the second portion 7.
  • this third portion 23 borders the first hole 22.
  • the thermal insulation means 21 comprises the first hole 22 of shape, for example, rectangular, and a second hole 24 which follows a particular shape of "L". These two holes 22 and 24 extend between the first portion 6 and the second portion 7 of the printed circuit board 4.
  • the hole or holes 22, 24 behave like chimneys that promote the circulation of this air flow, and correlatively the exchange thermal performed with this one.
  • the figure 2 shows the module 1 according to a view from below of the figure 1 , that is to say on the side of the cooling elements.
  • the second heat sink 9 is secured to the second portion 7, the latter being connected to the first portion 6 by the third portion 23 of the printed circuit board 4.
  • the first heat sink 8 and the second heat sink 9 are arranged on the module 1 so that they surround the thermal insulation means 21.
  • a wafer of the second heat sink 9 is extends substantially to the right of an edge which delimits the first hole 22 and / or the second hole 24.
  • a sidewall of the base 11 of the first heat sink 8 extends substantially in the extension of an edge of the first hole 22 and / or the second hole 24. It is thus understood that the first heat sink and the second heat sink line the hole forming the thermal insulation means 21.
  • the thermal insulation means 21 further comprises the constituent substrate of the printed circuit board 4.
  • the thermal conductivity of this substrate being globally equal to 0.35 Wm -1 .K -1 , thus achieves a thermal barrier that opposes thermal migration of calories between the first and second portions of the printed circuit board 4.
  • the first heat sink 8 comprises a means 26 for the recovery of mechanical forces generated by the control device.
  • the weight of control device combined with the weight of the second dissipator 9 generate at the third portion 23 of the mechanical stresses, including bending.
  • the means 26 of mechanical stress recovery is arranged to support the second portion 7 of the printed circuit board.
  • such a support is formed by at least a first protrusion 27 issuing from the first heat sink 8.
  • the latter comprises a second protrusion 28 opposite the first protrusion 27 with respect to the second dissipator 9.
  • These two protuberances 27 and 28 are derived from the base 11 and each comprise at least one cooling ribs 12 which plays a role of dissipation, and a role of mechanical reinforcement of the considered growth.
  • the first protrusion 27 and the second protrusion 28 comprise a free end 29 secured to the second portion 7, for example by means of a screw, a rivet or a collapsed assembly.
  • the second portion 7 is in contact with the protrusions and fixed to the free end 29 of the latter, so as to avoid any mechanical forces at the third portion which would be likely to break the substrate of the printed circuit board.
  • the figure 3 shows module 1 of the figure 1 in view from above, that is to say on the side of the light sources 2 and the control device 3.
  • the first portion 6 of the printed circuit board 4 is the area where the light-emitting diodes extend, while the second portion 7 of the printed circuit board 4 is the area where the electronic components constituting the light-emitting device extend. control 3 of the light sources 2.
  • the reflection means 30 serves to collect and / or reflect the rays emitted by the light source (s) 2 of the module 1.
  • a reflection means 30 is for example a parabolic or elliptical mirror or with complex surfaces.
  • the projection means 31 is a transparent component traversed by the light beam generated by the light source (s) 2.
  • the projection means 31 modifies the direction of the light rays of this beam in order to form a lighting beam, in particular type code or route.
  • a projection means is for example a lens.
  • the third portion 23 carries at least one electrically conductive track 32 which electrically connects at least one light-emitting diode with the control device 3.
  • another electrically conductive track 32 is also formed on a third portion 23 located between the first hole 22 and the second hole 24.
  • These electrically conductive tracks 32 form thermal bridges between the first portion 6 and the second portion 7 of the printed circuit board 4.
  • the invention makes it possible to limit their importance by dimensioning these electrically conductive tracks 32. is the reason that it is expected that the electrically conductive tracks occupy a maximum of 20% of the surface of the third portion 23. This limits the thermal drainage at the electrically conductive tracks, while allowing the transport of electrical energy between the control module 3 and the light source (s) 2.
  • Module 1 describes with reference to Figures 1 to 3 is preferably adapted for the formation of a lighting light beam, that is to say a light beam focused on a particular area of the road taken by the carrier vehicle module 1. This is particularly the case of a light beam of code or road type, in contrast to a signal beam of the fire type. position where the rays of light are not concentrated in a specific area.
  • a lighting light beam that is to say a light beam focused on a particular area of the road taken by the carrier vehicle module 1.
  • This is particularly the case of a light beam of code or road type, in contrast to a signal beam of the fire type. position where the rays of light are not concentrated in a specific area.
  • the module 1 comprising any of the features presented above with reference to the Figures 1 to 3 , is intended to be integrated into a vehicle headlamp.
  • a projector comprises at least one housing closed by a transparent element, in particular an ice or a wall made of transparent polycarbonate.
  • This housing and this transparent element delimit an internal volume in which are installed one or more lighting and / or signaling modules 1 detailed above and in which the flow of air that exchanges with the first heat sink and the second sink Thermal circulates.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Claims (13)

  1. Licht- und/oder Signalgebungsmodul (1) mit wenigstens einer Lichtquelle (2) und einer Vorrichtung (3) zum Steuern der Lichtquelle (2), die beide auf ein und derselben Leiterplatte (4) angeordnet sind, wobei das Modul (1) einen ersten Kühlkörper (8) zum Ableiten der von der Lichtquelle (2) erzeugten Wärme und einen zweiten Kühlkörper (9) zum Ableiten der von der Steuervorrichtung (3) erzeugten Wärme umfasst, wobei der erste Kühlkörper (8), der auf einem ersten Abschnitt (6) der Leiterplatte (4) befestigt ist, und der zweite Kühlkörper, der auf einem vom ersten Abschnitt (6) getrennten zweiten Abschnitt (7) der Leiterplatte (4) befestigt ist, voneinander getrennt und durch die Leiterplatte (4) miteinander verbunden sind, dadurch gekennzeichnet, dass die Leiterplatte (4) wenigstens ein zwischen dem ersten Abschnitt (6) und dem zweiten Abschnitt (7) angeordnetes Wärmeisolierungsmittel (21) umfasst, wobei das Wärmeisolierungsmittel (21) wenigstens durch mindestens ein die Leiterplatte (4) durchquerendes Loch (22, 24) gebildet ist, das von einem Luftstrom (10) passiert zu werden vermag.
  2. Modul nach Anspruch 1,
    bei dem der erste Kühlkörper (8) und der zweite Kühlkörper (9) das Loch (22, 24) umgeben.
  3. Modul nach einem der Ansprüche 1 bis 2,
    bei dem das Loch (22, 24) einen Umfangsrand aufweist, insbesondere einen rechteckigen Umfangsrand, wobei der erste Abschnitt (6) und der zweite Abschnitt (7) durch wenigstens einen dritten Abschnitt (23) miteinander verbunden sind, der das Loch (22, 24) säumt.
  4. Modul nach Anspruch 3,
    bei dem der dritte Abschnitt (23) wenigstens einen Teil einer Leiterbahn (32) trägt, die die Steuervorrichtung (3) mit der Lichtquelle (2) verbindet.
  5. Modul nach Anspruch 4,
    bei dem eine von der Leiterbahn (32) bedeckte Fläche des dritten Abschnitts (23) maximal 20 % der Fläche des dritten Abschnitts (23) ausmacht.
  6. Modul nach einem der vorhergehenden Ansprüche,
    bei dem die Lichtquelle (2) eine Leuchtdiode umfasst, die auf dem ersten Abschnitt (6) der Leiterplatte (4) befestigt ist.
  7. Modul nach Anspruch 6,
    bei dem die Lichtquelle (2), der erste Abschnitt (6) und der erste Kühlkörper (8) in dieser Reihenfolge übereinander angeordnet sind.
  8. Modul nach einem der vorhergehenden Ansprüche,
    bei dem die Steuervorrichtung (3) wenigstens ein elektronisches Bauteil (5) umfasst, das auf dem von dem ersten Abschnitt (6) getrennten zweiten Abschnitt (7) der Leiterplatte (4) befestigt ist.
  9. Modul nach Anspruch 8,
    bei dem die Steuervorrichtung (3), der zweite Abschnitt (7) und der zweite Kühlkörper (9) in dieser Reihenfolge übereinander angeordnet sind.
  10. Modul nach einem der vorhergehenden Ansprüche,
    bei dem der erst Kühlkörper (8) ein Mittel (26) zur Aufnahme mechanischer Belastungen umfasst, die durch die Steuervorrichtung (3) erzeugt werden
  11. Modul nach Anspruch 10,
    bei dem das Mittel (26) zur Aufnahme von mechanischen Belastungen wenigstens eine vom ersten Kühlkörper (8) ausgehende Vorwölbung (27, 28) aufweist, deren freies Ende (29) mit dem zweiten Abschnitt (7) der Leiterplatte (4) fest verbunden ist, der wenigstens ein elektronisches Bauteil (5) trägt, das die Steuervorrichtung (3) bildet.
  12. Modul nach einem der vorhergehenden Ansprüche,
    mit wenigstens einem Reflexionsmittel (30) und/oder einem Projektionsmittel (31), das bzw. die unmittelbar oder mittelbar von dem ersten Kühlkörper (8) getragen werden.
  13. Kraftfahrzeugscheinwerfer mit wenigstens einem Licht- und/oder Signalgebungsmodul (1) nach einem der vorhergehenden Ansprüche.
EP13190870.9A 2012-11-09 2013-10-30 Beleuchtungsmodul mit verschiedenen Wärmesenken montiert auf einer gemeinsamen Platine Active EP2730837B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1260652A FR2998034A1 (fr) 2012-11-09 2012-11-09 Module d'eclairage a carte unitaire et dissipateurs distincts

Publications (2)

Publication Number Publication Date
EP2730837A1 EP2730837A1 (de) 2014-05-14
EP2730837B1 true EP2730837B1 (de) 2016-01-13

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EP13190870.9A Active EP2730837B1 (de) 2012-11-09 2013-10-30 Beleuchtungsmodul mit verschiedenen Wärmesenken montiert auf einer gemeinsamen Platine

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EP (1) EP2730837B1 (de)
ES (1) ES2565429T3 (de)
FR (1) FR2998034A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
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EP4397903A1 (de) * 2023-01-03 2024-07-10 Valeo Vision Leuchtvorrichtung für kraftfahrzeuge
WO2026078254A1 (fr) * 2024-10-11 2026-04-16 Valeo Vision Module lumineux pour un véhicule automobile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9883612B2 (en) 2015-06-02 2018-01-30 International Business Machines Corporation Heat sink attachment on existing heat sinks
FR3037127B1 (fr) * 2015-06-08 2019-08-09 Valeo Vision Dissipateur thermique de module optique a del de projecteur automobile
FR3048487B1 (fr) * 2016-03-02 2019-05-24 Valeo Vision Dispositif d'eclairage pour vehicule automobile comprenant des modules lumineux refroidis au moyen d'un generateur d'un flux d'air
FR3100600A1 (fr) * 2019-09-05 2021-03-12 Psa Automobiles Sa Radiateur à capacité de refroidissement optimisée pour projecteur de véhicule automobile
EP4729829A2 (de) * 2021-10-20 2026-04-22 Koito Manufacturing Co., Ltd. Fahrzeugscheinwerfer

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US6517221B1 (en) * 1999-06-18 2003-02-11 Ciena Corporation Heat pipe heat sink for cooling a laser diode
EP1711739A4 (de) * 2004-01-28 2008-07-23 Tir Technology Lp Direkt zu sehende leuchte
US7866852B2 (en) * 2007-08-29 2011-01-11 Texas Instruments Incorporated Heat sinks for cooling LEDs in projectors
DE102009033949A1 (de) * 2009-07-13 2011-01-20 Automotive Lighting Reutlingen Gmbh Kühlelement für eine Halbleiterlichtquelle einer Beleuchtungseinrichtung eines Kraftfahrzeugs
JP2012015148A (ja) * 2010-06-29 2012-01-19 Rohm Co Ltd Ｌｅｄモジュールおよびｌｅｄ照明装置
EP2428725B1 (de) * 2010-09-10 2019-11-20 Koito Manufacturing Co., Ltd. Fahrscheugscheinwerfer

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Publication number Priority date Publication date Assignee Title
EP4397903A1 (de) * 2023-01-03 2024-07-10 Valeo Vision Leuchtvorrichtung für kraftfahrzeuge
WO2026078254A1 (fr) * 2024-10-11 2026-04-16 Valeo Vision Module lumineux pour un véhicule automobile

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EP2730837A1 (de) 2014-05-14
FR2998034A1 (fr) 2014-05-16
ES2565429T3 (es) 2016-04-04

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