EP3104063A1 - Kühlkörper für leuchtmodul, entsprechendes leuchtmodul und entsprechende leuchtvorrichtung - Google Patents

Kühlkörper für leuchtmodul, entsprechendes leuchtmodul und entsprechende leuchtvorrichtung Download PDF

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Publication number
EP3104063A1
EP3104063A1 EP16172650.0A EP16172650A EP3104063A1 EP 3104063 A1 EP3104063 A1 EP 3104063A1 EP 16172650 A EP16172650 A EP 16172650A EP 3104063 A1 EP3104063 A1 EP 3104063A1
Authority
EP
European Patent Office
Prior art keywords
heat sink
air
chamber
air inlet
air outlet
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.)
Withdrawn
Application number
EP16172650.0A
Other languages
English (en)
French (fr)
Inventor
Jean-Claude Puente
Vincent Godbillon
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
Original Assignee
Valeo Vision SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP3104063A1 publication Critical patent/EP3104063A1/de
Withdrawn legal-status Critical Current

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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
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/30—Ventilation or drainage of lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/49—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
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass
    • 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
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the present invention relates to light devices for vehicles.
  • the invention improves the situation.
  • the invention relates to a heat sink for a motor vehicle light module, comprising a conduit passing through said heat sink, intended for the circulation of air from a first opening of said heat sink to a second opening of said heat sink, said duct comprises at least one circulation chamber, the or each chamber having an air inlet and an air outlet, offset with respect to each other, the duct further comprising at least one deflection means defining within said circulation chamber, at least one deflection baffle of air flowing between said air inlet and said air outlet of the circulation chamber.
  • the first and second openings being respectively arranged on the upstream face and the downstream face of said heat sink.
  • the cooling fins are longitudinal and parallel extensions of the heat sink allowing a better heat exchange between the air and the heat sink, and a better air circulation.
  • the cooling fins and heat sink came from material.
  • At least a portion of the air inlet and at least a portion of the air outlet are in facing relation.
  • vis-à-vis is intended to mean that the orthogonal projection of at least a portion of the air inlet along an axis orthogonal to the walls of the circulation chamber and the orthogonal projection of at least one part of the air outlet along the same orthogonal axis.
  • the air inlet and the air outlet are devoid of vis-à-vis.
  • the dissipator comprises two washers delimiting between them said circulation chamber, the washers each comprising a recess forming the air inlet, respectively the air outlet of the circulation chamber.
  • the heat sink comprises a base extending along a longitudinal axis, the air inlet and the air outlet of the circulation chamber being angularly offset by a given angle around the longitudinal axis, said given angle corresponding to the smallest of the two possible angles between 0 and 2 ⁇ radians, the projection on a plane normal to said longitudinal axis of the air path imposed by said baffle covering an angular sector of substantially equal angle at 2 ⁇ - ⁇ i or greater than 2 ⁇ - ⁇ i , where ⁇ i is said given angle and i is an index indexing the chamber considered.
  • the deflection means comprises a profile extending between the washers and defining said baffle, the profile comprising at least one separation wall arranged in the angular sector defined in normal projection relative to the axis through the air inlet and the air outlet of the circulation chamber and angle given angle ⁇ i , and at least one deflection wall extending outside said angular sector and away the air inlet and the air outlet of the flow chamber in projection on a plane normal to the longitudinal axis.
  • profile means that a shape extending in a given direction and having a constant cross section along this direction.
  • the heat sink comprises a plurality of circulation chambers each comprising an air inlet and an air outlet, the deflection means defining a baffle within all or part of the circulation chambers. of air deflection.
  • the heat sink extends along a longitudinal axis, each chamber within which is delimited a baffle is delimited axially by two washers of the heat sink, each washer having a recess forming an inlet of air or an air outlet for the flow chamber considered, said air inlet and said air outlet being angularly offset at a given angle around the axis of the heat sink, said given angle corresponding to the smallest of two possible angles between 0 and 2 ⁇ radians, the projection on a plane normal to said axis of the air path imposed by said baffle covering an angular sector of angle substantially equal to 2 ⁇ - ⁇ i or greater than 2 ⁇ - ⁇ i , where ⁇ i is said given angle and i is an index indexing the chamber considered.
  • the deflection means comprises, for each chamber comprising an air deflection baffle, a section extending between the washers delimiting the chamber in question and defining the corresponding deflection baffle, the profile comprising at least one separation wall arranged in the angular sector defined in normal projection relative to the axis by the air inlet and the air outlet of the corresponding circulation chamber and angle given angle ⁇ i between the associated recesses, and at least one deflection wall extending outside said angular sector and away from the air inlet and the air outlet of the circulation chamber in projection on a plane normal to the heatsink axis.
  • each recess is formed at the periphery of the corresponding washer.
  • the heat sink comprises cooling fins.
  • the first opening is disposed between the cooling fins.
  • the heat sink has a generally cylindrical, cubic or parallelepipedal shape or the like.
  • the light source comprises at least one semiconductor emissive element.
  • the light source is an electroluminescent diode.
  • the light source is arranged directly on the heat sink.
  • said light module comprises an electrical connection substrate capable of electrically powering the light source.
  • the electrical connection substrate is a printed circuit board, a flexible printed circuit board or a variable geometry interconnection device.
  • the electrical connection substrate is arranged on the heat sink.
  • the light source is arranged on the electrical connection substrate.
  • connection substrate comprises a passage orifice arranged facing the air outlet of the heat sink.
  • the invention also relates to a light device for a vehicle, characterized in that it comprises a housing and a closing window delimiting between them an interior volume of the light device, and a light module as defined above, said light module. being sealingly mounted through a wall of the housing, one of the first and second openings being within said heat sink interior.
  • the air inlet of the heat sink opens out of the light device and the air outlet of the heat sink opens into the interior volume of the light device, the light module being received at through the wall of enclosure so that the air inlet of the heat sink is located under a longitudinal axis of the heat sink and so that the air outlet of the heat sink is above said longitudinal axis.
  • the device comprises retention means configured to prevent the penetration, within the interior volume of the light device, of the humidity and the dust contained in the fluid entering the heat sink of the module. luminous.
  • the retention means comprise an inclined wall arranged facing the air outlet of the heat sink and / or an inclined wall arranged opposite the air inlet of the heat sink.
  • the device comprises a pipe for conveying fluid to the heat sink, the pipe comprising an air inlet and an air outlet situated opposite the air inlet of the heat sink. thermal, said air outlet being in height relative to said air inlet of the pipe.
  • the Figure 1 illustrates a light device 2 according to the invention, hereinafter device 2.
  • the device 2 is intended to be integrated with a vehicle, such as for example a car.
  • the device 2 is for example a projector - or headlight - vehicle, a signaling device such as a flasher, or a rear light vehicle.
  • the device 2 comprises a housing 4, a closure glass 6 and a light module 8 according to the invention, hereinafter module 8.
  • the casing 4 and the closure glass 6 are fixed to each other and delimit an internal volume 10 of the device 2.
  • the casing 4 comprises in particular a rear wall 12 delimiting a receiving orifice 14 for the sealed reception of the module 8 .
  • the housing 4 is for example made from metal or plastic.
  • the module 8 comprises a light source 16, an electrical connection substrate 18, and a heat sink 20 according to the invention.
  • the light source 16 is configured to emit light.
  • the light source 16 is oriented towards the closing glass 6.
  • the light source 16 advantageously comprises at least one semiconductor light emitting element adapted to generate light rays by photoluminescence.
  • this emissive element is a light emitting diode.
  • the module 8 may comprise a plurality of elements 16 fixed on the printed circuit 18.
  • the electrical connection substrate 18 is configured to supply the light source 16 with electrical energy and to control the emission of light from the light source 16.
  • the electrical connection substrate 18 comprises a printed circuit board, for example of PCB (" Printed Circuit Board "), and / or a flexible printed circuit board, for example of FPCB (" Flexible Printed Circuit Board “), and / or a variable geometry interconnection device, for example of MID type (" Molded In Device ”) .
  • PCB Printed Circuit Board
  • FPCB Flexible Printed Circuit Board
  • MID type Molded In Device
  • the electrical connection substrate 18 is for example arranged on the heat sink 20.
  • the light source 16 is then arranged on the electrical connection substrate 18.
  • the substrate 18 is arranged at a downstream face of the dissipator 20 and is directed towards the internal volume 10.
  • the substrate 19 comprises a passage orifice 19 arranged facing an air outlet of the heat sink 20. This is described in more detail below.
  • the light source 16 is arranged directly on the heat sink 20.
  • it is then arranged at the downstream face of the dissipator 20.
  • the heat sink 20 is configured to dissipate a portion of the heat generated by the light source 16 and the substrate 18.
  • the heat sink 20 is made from a material having good thermal conduction properties.
  • the heat sink 20 is made from metal or plastic that is a good thermal conductor.
  • the heat sink 20 extends substantially along a longitudinal axis X.
  • the dissipator 20 has a generally cylindrical shape.
  • the heat sink 20 has a generally parallelepipedal shape, for example cubic.
  • the heat sink 20 has any general shape known to those skilled in the art.
  • the heat sink 20 comprises fins 22 configured to exchange heat with the external environment and a base 23.
  • the heat sink 20 comprises a first opening 26 and a second opening 28 fluidly connected to each other.
  • the first and second openings 26, 28 correspond to an air inlet, respectively an air outlet of the dissipator 20. They allow fluid circulation within the heat sink 20 and between the interior volume 10 of the device 2 and the outside
  • the heat sink 20 comprises at least one deflection means 30.
  • the base 23 extends substantially along the axis X.
  • the base 23 comprises a plurality of washers 24 spaced apart from each other along the axis X.
  • the heat sink 20 comprises for example a first washer 24 1 , a second washer 24 2 and a third washer 24 3 . Indexing washers is defined in the direction from the first opening 26 to the second opening 28 of the heat sink, that is to say in the upstream direction downstream in view of the flow of fluid within the heat sink .
  • the first washer 24 1 defines an upstream face of the dissipator 20.
  • the last washer 24 3 defines a downstream face of the dissipator 20.
  • the first opening 26 of the dissipator 20 is located at the upstream face of the dissipator 20, the second opening 28 is located at the downstream face of the heat sink 20.
  • the washers 24 have for example a general form of disc. Moreover, they all have substantially the same dimensions. In addition, they are arranged substantially orthogonal to the X axis. The spacings between two washers are advantageously substantially constant.
  • the circumferential edges of all or part of the washers define a cylinder axis axis X in which the corresponding washers are inscribed. Note that it is conceivable to have a first washer 24 1 of different size than other washers, for example of larger size.
  • the washers define such a cylinder but have a shape other than a disc shape and / or are not arranged substantially orthogonal to the X axis.
  • two successive washers 24 delimit between them a chamber 32 within which the air circulates once it has entered the heat sink 20 through the first opening 26.
  • the heat sink 20 thus comprises two chambers 32 1 and 32 2 .
  • Two consecutive washers 24 thus form transverse walls to the X axis for the corresponding chamber 32.
  • Each washer 24 is provided with a recess 34 forming an air inlet or an air outlet for the chamber 32 considered and possibly for the heat sink 20.
  • the recess 34 of the first washer 24 1 forms an inlet for the chamber 32 1 delimited by it and the second washer 24 2 but also forms the first opening 26 of the heat sink 20.
  • the recess 34 of the third washer 24 3 forms an air outlet of the chamber 32 2 associated but also the second opening 28 of the heat sink 20.
  • each recesses 34 are formed at the periphery of the washer 24 considered.
  • each recess 34 is formed on the edge of the corresponding washer.
  • each recess 34 has a general shape of C.
  • each recess 34 has a U-shape or a semicircular shape.
  • At least a portion of the air inlet and at least a portion of the air outlet of a given chamber 32 are facing each other.
  • the air intake and the air outlet overlap at least partially in projection along the X axis.
  • the air inlet and the air outlet of a chamber are devoid of vis-à-vis.
  • the respective recesses 34 of two successive washers 24 are offset angularly around of the axis X of an angle ⁇ , or ⁇ i when there are three or more washers 24 as in the example of the Figure 2 where i indexes the chamber 32 delimited by the two washers 24 in question (in the sense of the order defined above).
  • angle ⁇ i is chosen to correspond to the smaller of the two angles defined by the two recesses 34 and between 0 and 2 ⁇ radians.
  • the fins 22 form extensions of the heat sink 20 allowing a better heat exchange between the air and the heat sink 20, as well as better air circulation.
  • the fins 22 extend substantially parallel to each other. They extend substantially parallel to the axis X. In addition, the fins 22 extend from the upstream face 24 1 of the dissipator 20 away from the dissipator 20.
  • the fins 22 and the heat sink 22 are made of material.
  • first opening 26 of the dissipator 20 is advantageously located between the fins 22.
  • the deflection means 30 is configured to connect the washers 24 to each other and to form at least one deflection baffle Ci of the air flowing between the air inlet 26 and the air outlet 28 of the heat sink 20. More specifically, the deflection means 30 is configured to form such a baffle Ci in each of the chambers 32.
  • the deflection means 30 comprises profiles 36 each extending between two washers 24.
  • the deflection means 30 thus comprises two profiles 36 1 , 36 2 respectively extending between the first and the second washer 24 1 , 24 2 , and between the second and the third washer 24 2 , 24 3 .
  • Each profile 36 defines a baffle Ci in the associated chamber 32.
  • Each baffle imposes a path to the air circulating within the corresponding chamber which has an ascending portion. More specifically, this baffle imposes a path to air flowing between the air inlet and the air outlet of the chamber which, in projection on a plane normal to the axis X, covers an angular sector S i with the angle is substantially equal to 2 ⁇ - ⁇ i or greater than 2 ⁇ - ⁇ i .
  • the term "substantially equal” means that the angle of the angular sector S i corresponds to 2 ⁇ - ⁇ i to the angular sector covered by a recess near (relative to the X axis), or to the half-sum of the angular sectors (with respect to the X axis) covered by the recesses forming the air intake and the air outlet from room 32 considered close.
  • the profile 36 1 delimits a chicane C1 which imposes on the air a path whose projection on the plane of the Figure 3 covers an angular sector of angle substantially equal to 2 ⁇ - ⁇ i , where ⁇ 1 is substantially equal to ⁇ / 2 radian.
  • the angle ⁇ 2 is also substantially equal to ⁇ / 2 radian.
  • the profiles 36 are in the form of pieces extending in a given direction and having a constant cross section along this direction. In the example of the Figures, this profile direction corresponds to the X axis.
  • Each profile 36 comprises at least one separation wall 38 and at least one deflection wall 40.
  • the partition (s) 38 are configured to prevent direct airflow, i.e., substantially straight, between the air inlet and the air outlet of the associated chamber 32.
  • each partition wall 38 is arranged in the angular sector defined in normal projection with respect to the X axis by the air inlet and the air outlet of the chamber 32 and angle angle ⁇ i .
  • the first section 36 1 comprises two partition walls 38 extending for one vertically and the other horizontally. These walls are arranged in the defined angular sector, in projection on the plane of the Figure 3 by the recesses 34 of the first washer 24 1 and the second washer 24 2 .
  • the second profile 36 2 comprises a partition wall 38 extending vertically.
  • the deflection walls 40 are configured to allow the fluid connection between the air inlet and the air outlet of the associated chamber 32 while forcing the air to bypass them. This has the effect of increasing the path taken by the air within the chamber 32, and in particular to increase the angular sector normally projected to the X axis of this path.
  • each deflection wall 40 extends outside the angular sector defined in normal projection relative to the axis by the air inlet and the air outlet of the chamber 32 and angle the angle ⁇ i .
  • each deflection wall 40 extends away from the recesses 34 of the washers 24 delimiting the chamber 32 considered. Finally, each deflection wall 40 does not extend to the edge of the washers 24.
  • partition walls 38 and the deflection wall or walls 49 are integral with each other.
  • the profile 36 1 comprises a deflection wall 40 extending from the partition walls 38.
  • the end of the deflection wall 40 extends near an edge of the washer which is away from the corresponding recesses 34 and the angular sector defined between them in projection perpendicular to the axis X, but not to the edge (in projection). This allows the passage of air around the deflection wall 40 once the heat sink 20 mounted in the light device 2.
  • the profile 36 2 comprises two deflection walls 40 extending from the partition wall 38.
  • One of the deflection walls 40 extends horizontally, the other deflection wall 38 extending vertically from the end 38E of the partition wall 40 and in the extension thereof.
  • the deflection walls 40 extend to near the edge of the washers (in projection) but not to the edge.
  • the heat sink 20 is sealingly received in the receiving orifice 14. More specifically, the orifice 14 has a diameter of dimensions substantially equal to the diameter of the heat sink 20. Thus, the fluid connection between the inside and the outside of the device 2 is only possible by the circulation path defined in the heat sink 20 and which passes through the chambers 32.
  • the heat sink 20 is positioned so that the air inlet 26 of the heat sink 20 is located under the axis X. Furthermore, the heat sink 20 is preferably positioned so that the output of air 28 of the heat sink 20 is above the X axis.
  • Figure 1 is a partial sectional view in which the elements of the device 2 are shown in section, with the exception of the heat sink 20, which is illustrated in a side view.
  • the device 2 comprises retention means 42 configured to prevent the penetration, within the interior volume 10 of the device 2, of the moisture and dust contained in the fluid entering the heat sink 20.
  • the retention means 42 comprise a wall 44 arranged in the internal volume 10 facing the air outlet 28 of the heat sink 20.
  • the wall 44 is inclined and has a curved shape conferring a form of giant clam. This shape has the effect that the air leaving the heat sink is deflected upwards, this deflection increasing the probability that moisture and dust are retained by the inclined wall and slide to its low point.
  • the wall 44 is for example fixed to the internal face of the casing 4.
  • the retention means 42 comprise a wall 46 inclined and arranged facing the air inlet 26 of the heat sink 20.
  • This wall 46 imposes at the air inlet 26 an upward deflection which has for effect of limiting the penetration of dust and moisture into the heat sink 20, and therefore in the device 2.
  • the module 8 During operation of the device 2, the module 8 emits light.
  • the light source 16 is controlled on transmission by the electrical connection substrate 18.
  • the operation of the module 8 generates heat which is communicated to the heat sink 20 by conduction. Part of this heat is evacuated via the fins 22.
  • air is conveyed to the heat sink 20.
  • This air comes, for example, from outside the vehicle.
  • this routing is carried out via a pipe 48, or pipe 48, of the device 2 and which has an air outlet 48S arranged facing the air inlet 26 of the heat sink or, if applicable, facing of the wall 46, this air outlet being located in height relative to the air inlet 48E of the pipe.
  • this pipe 48 also contributes to preventing the entry of dust and moisture into the heat sink 20.
  • the air is imposed a deviated course around the profile 36 1 and spring of the first chamber 32 1 by the recess 34 of the second washer 24 2 .
  • the air also observes a deflected course because of the profile 36 2 .
  • the air then leaves the heat sink 20 through the air outlet 28, possibly passing through the orifice 19 of the printed circuit 18, and is ejected against the wall 44, which imposes a new upward deflection to enter the interior volume 10.
  • the heat sink, the module and the device according to the invention have many advantages.
  • the deflection of the path of air in the heat sink which is imposed by the deflection means has the effect of increasing the length of the path taken by the air within the heat sink, which promotes the elimination dust and moisture passing through the heat sink and before penetration into the interior 10 of the device 2.
  • each baffle formed by the deflection means results in the presence, within the air circulation path inside each chamber, an ascending portion, which also limits the passage of dust and moisture from one room to another.
  • the deflection means 36 is simple and robust bill, so that the heat sink is both easy to manufacture and good mechanical strength.
  • the positioning of the recesses at the periphery of the washers increases further than the length of the air path within the heat sink, which also contributes to limiting the penetration of moisture and dust into the interior volume 10.
  • the heat sink 20 may comprise more than two chambers 32 each provided with a profile imposing a deflection of air between the air inlet and the air outlet of the chamber considered. .
  • not all chambers are provided with a profile deviating the air flow.
  • at least one of the chambers 32 is not provided with a profile forming a deflection, but is simply provided with a connection piece connecting the washers associated with each other and allowing the direct circulation, for example substantially in a straight line. , between the air inlet and the air outlet of the corresponding chamber.
  • This connecting piece is for example in the form of a rod extending substantially along the axis X.
  • each chamber 32 is provided with a profile defining a deflection baffle of the air as described above.

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  • 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)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP16172650.0A 2015-06-08 2016-06-02 Kühlkörper für leuchtmodul, entsprechendes leuchtmodul und entsprechende leuchtvorrichtung Withdrawn EP3104063A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1555192A FR3037125B1 (fr) 2015-06-08 2015-06-08 Dissipateur thermique pour module d'emission lumineuse, module d'emission lumineuse et dispositif lumineux associes

Publications (1)

Publication Number Publication Date
EP3104063A1 true EP3104063A1 (de) 2016-12-14

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Application Number Title Priority Date Filing Date
EP16172650.0A Withdrawn EP3104063A1 (de) 2015-06-08 2016-06-02 Kühlkörper für leuchtmodul, entsprechendes leuchtmodul und entsprechende leuchtvorrichtung

Country Status (5)

Country Link
US (1) US9927088B2 (de)
EP (1) EP3104063A1 (de)
JP (1) JP2017017008A (de)
CN (1) CN106247249A (de)
FR (1) FR3037125B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3376101A1 (de) * 2017-03-16 2018-09-19 Valeo Vision Optisches modul, das mit einem radiator mit auslassöffnung ausgestattet ist

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070115656A1 (en) * 2005-11-24 2007-05-24 Industrial Technology Research Institute Illumination module
JP2010108637A (ja) * 2008-10-28 2010-05-13 Harison Toshiba Lighting Corp 車両用前照灯
EP2199669A1 (de) * 2008-12-18 2010-06-23 Valeo Vision Vorrichtung zum Abkühlen eines optischen Moduls für einen Kraftfahrzeugscheinwerfer
US20110242833A1 (en) * 2010-03-31 2011-10-06 Nippon Soken, Inc. Headlamp assembly for motor vehicle
WO2013001560A1 (ja) * 2011-06-27 2013-01-03 三菱電機株式会社 車載用ヘッドランプ
FR3001524A1 (fr) * 2013-01-30 2014-08-01 Valeo Vision Dissipation thermique pour module d'eclairage de vehicule automobile

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0180704U (de) * 1987-11-19 1989-05-30
FR2693787B1 (fr) * 1992-07-17 1994-10-21 Valeo Vision Projecteur de véhicule automobile équipé de moyens de ventilation et de refroidissement perfectionnés.
JP2756906B2 (ja) * 1993-12-10 1998-05-25 トヨタ自動車株式会社 車両用灯具
JP4428588B2 (ja) * 1999-04-27 2010-03-10 本田技研工業株式会社 灯火器の通気孔構造
US7275848B2 (en) * 2005-02-16 2007-10-02 Visteon Global Technologies, Inc. Headlamp assembly having cooling channel
US7329033B2 (en) * 2005-10-25 2008-02-12 Visteon Global Technologies, Inc. Convectively cooled headlamp assembly
US7427152B2 (en) * 2005-12-05 2008-09-23 Visteon Global Technologies, Inc. Headlamp assembly with integrated housing and heat sink
DE102007046264B4 (de) * 2007-08-17 2018-04-26 Volkswagen Ag Fahrzeugleuchte mit Enttauungsvorrichtung
US7895061B2 (en) * 2007-10-02 2011-02-22 American Well Corporation Auctioning provider prices
US7841756B2 (en) * 2008-01-31 2010-11-30 Honda Motor Co., Ltd. Vehicle lamp assembly
WO2009147800A1 (ja) * 2008-06-06 2009-12-10 株式会社小糸製作所 車両用灯具
JP5160973B2 (ja) * 2008-06-23 2013-03-13 株式会社小糸製作所 車両用灯具
JP2010152323A (ja) * 2008-11-26 2010-07-08 Sanyo Electric Co Ltd 照明装置および投写型映像表示装置
US8950910B2 (en) * 2009-03-26 2015-02-10 Cree, Inc. Lighting device and method of cooling lighting device
CN102667326B (zh) * 2009-06-03 2016-08-10 沃克斯材料有限公司 灯组件及制造方法
WO2013057644A1 (en) * 2011-10-18 2013-04-25 Koninklijke Philips Electronics N.V. Split beam luminaire and lighting system
DE102014215785B4 (de) * 2014-08-08 2016-03-31 Automotive Lighting Reutlingen Gmbh Projektionslichtmodul für einen Kraftfahrzeugscheinwerfer
TWI588403B (zh) * 2015-01-05 2017-06-21 隆達電子股份有限公司 發光二極體車頭燈
FR3031572B1 (fr) * 2015-01-09 2018-08-10 Valeo Vision Module optique pour projecteur de vehicule

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070115656A1 (en) * 2005-11-24 2007-05-24 Industrial Technology Research Institute Illumination module
JP2010108637A (ja) * 2008-10-28 2010-05-13 Harison Toshiba Lighting Corp 車両用前照灯
EP2199669A1 (de) * 2008-12-18 2010-06-23 Valeo Vision Vorrichtung zum Abkühlen eines optischen Moduls für einen Kraftfahrzeugscheinwerfer
US20110242833A1 (en) * 2010-03-31 2011-10-06 Nippon Soken, Inc. Headlamp assembly for motor vehicle
WO2013001560A1 (ja) * 2011-06-27 2013-01-03 三菱電機株式会社 車載用ヘッドランプ
FR3001524A1 (fr) * 2013-01-30 2014-08-01 Valeo Vision Dissipation thermique pour module d'eclairage de vehicule automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3376101A1 (de) * 2017-03-16 2018-09-19 Valeo Vision Optisches modul, das mit einem radiator mit auslassöffnung ausgestattet ist
FR3064049A1 (fr) * 2017-03-16 2018-09-21 Valeo Vision Module optique comportant un radiateur equipe d'un event
US10465877B2 (en) 2017-03-16 2019-11-05 Valeo Vision Optical module including a heat sink equipped with a vent

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FR3037125B1 (fr) 2019-10-11
US9927088B2 (en) 2018-03-27
CN106247249A (zh) 2016-12-21
US20160356448A1 (en) 2016-12-08
FR3037125A1 (fr) 2016-12-09
JP2017017008A (ja) 2017-01-19

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