WO2023031072A1 - Module d'émission de lumière comprenant un support destiné à dissiper de la chaleur - Google Patents
Module d'émission de lumière comprenant un support destiné à dissiper de la chaleur Download PDFInfo
- Publication number
- WO2023031072A1 WO2023031072A1 PCT/EP2022/073870 EP2022073870W WO2023031072A1 WO 2023031072 A1 WO2023031072 A1 WO 2023031072A1 EP 2022073870 W EP2022073870 W EP 2022073870W WO 2023031072 A1 WO2023031072 A1 WO 2023031072A1
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- WIPO (PCT)
- Prior art keywords
- base
- light
- fin
- plane
- face
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 14
- 238000007493 shaping process Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 239000012080 ambient air Substances 0.000 description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- 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
- F21S41/19—Attachment of light sources or lamp holders
- F21S41/192—Details of lamp holders, terminals or connectors
-
- 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 invention relates to the field of lighting devices for motor vehicles. More specifically, the invention relates to a light-emitting module comprising a light source and a support intended to dissipate heat. The invention also relates to an optical module and a lighting device for a motor vehicle comprising such a light-emitting module.
- the lighting devices of motor vehicles are designed by following numerous dimensional requirements imposed both by the aesthetic appearance of the vehicle, by the space available for their integration, and by the different light functions that the light device must perform.
- the light devices comprise at least one light source which must be powered electrically.
- An electrical harness therefore connects the light source to a source of electrical energy of the vehicle. For simple assembly and maintenance of the vehicle, the electrical harness must be able to be easily connected and disconnected from the light source.
- the object of the invention is to provide a light-emitting module remedying the above drawbacks and improving the light-emitting modules known from the prior art.
- a first object of the invention is a light-emitting module that is both simple to manufacture and simple to connect electrically.
- a second object of the invention is a light-emitting module that is both compact and capable of effectively dissipating the heat produced by a light source.
- the invention relates to a light-emitting module comprising a light source, in particular a light-emitting diode, a support intended to dissipate heat, and an electrical connector connected to the light source, the support comprising a base s extending substantially in a first plane, the base being provided with a first face on which the light source and the electrical connector are fixed, the electrical connector comprising an inlet arranged along a first portion of a first edge of said base, the support comprising a first fin projecting with respect to said first plane on the side of said first face, the first fin being connected to the base by a single connecting segment, the connecting segment being arranged along a second portion of said first edge, the second portion being separate from the first portion.
- the invention may include one or more of the following features, taken alone or in combination.
- the light-emitting module may comprise a free volume extending at least opposite the entrance to the electrical connector.
- the first fin may comprise a primary part extending substantially in a second plane perpendicular to said first plane.
- the fin may comprise at least one secondary part extending substantially in a third plane perpendicular to said first plane and to said second plane.
- the at least one secondary part can extend in a volume defined by an orthogonal projection of the base.
- the support may comprise a second fin projecting relative to said first plane, the second fin being connected to the base by a second connecting segment arranged along a second edge of the base, the second edge being distinct from the first edge.
- the second fin may project relative to said first plane on the side of a second face of the base, the second face being opposite said first face.
- the support may comprise a third fin projecting with respect to said first plane on the side of a second face of the base, the second face being opposite to said first face, the third fin being connected to the base by a third connecting segment arranged along the first portion of said first edge.
- the base may comprise a substantially rectangular shape.
- the base of the support may comprise at least one opening intended to cooperate with a fixing means.
- the first fin may comprise a substantially rectangular shape or an "L" shape.
- the support can be obtained by bending a metal sheet.
- the light-emitting module may comprise an electronic card extending along said first face, the electronic card being electrically connected to the light source and to the electrical connector, the electronic card comprising a shape adapted to be deposited on the first face of the base by a movement along an axis perpendicular to said first plane without interference with the first fin.
- the invention also relates to an optical module comprising a means for shaping a light beam and a light emission module as defined above.
- the support of the light-emitting module can be fixed directly to said means for shaping a light beam, in particular by means of a fixing screw passing through an opening provided in the base of the support.
- the invention finally relates to a light device for a motor vehicle, comprising a casing intended to be fixed to a motor vehicle and an optical module as defined previously, the optical module being arranged inside the casing.
- FIG. 1 There is a schematic view of a motor vehicle equipped with a light device according to one embodiment of the invention.
- FIG. 1 There is a first perspective view of a first embodiment of a light emitting module of the light device.
- FIG. 1 There is a first perspective view of a second embodiment of a light emitting module of the light device.
- the light device 1 is a vehicle equipment capable of producing light rays to make the vehicle better visible and/or to illuminate the environment of the vehicle.
- the light device 1 can be arranged either at the front, at the rear, or even in any other place of the vehicle.
- the light device 1 can in particular be a projector, a traffic light or even a vehicle interior lighting device. It comprises a case 2, a case closing lens and an optical module 3.
- the combination of the case 2 and the lens envelops the optical module 3.
- the lens is transparent or translucent so as to transmit light rays towards the exterior of the lighting device.
- the housing 2 may in particular comprise fixing means configured to fix the light device to the vehicle.
- the optical module 3 comprises a means for shaping a light beam 4 and a light emitting module 5, 105.
- the means for shaping a light beam 4 can comprise one or more optical components such as lenses or reflectors. These optical components are arranged so as to orient light rays in a chosen direction.
- the light emitting module is connected to a source of electrical energy E via an electrical harness F.
- FIGS 2 and 3 illustrate a first embodiment of the light-emitting module 5.
- the light-emitting module 5 comprises a light source 6, a support 7, and an electrical connector 8 connected to the light source 6.
- the light emitting module further comprises an electronic card 9 electrically connected to the light source 6 and to the electrical connector 8.
- the light source 6 is preferably a light-emitting diode but, as a variant, it could be any other form of light source such as an incandescent lamp for example.
- the light source is able to emit light rays and produces heat during its operation.
- the light emitting module can include any number of light sources.
- the support 7 is able to dissipate the heat emitted by the light source 6 by thermal convection. It therefore forms a heat dissipation means but also a means for supporting or holding the light source 6 and the electrical connector 8.
- the support 7 is made of a material with good thermal conductivity, in particular metal. It comprises an exchange surface with the ambient air large enough to dissipate the heat produced by the light source 6, so that the temperature of the light source 6 remains below a maximum operating temperature.
- the light source 6 is fixed, in particular glued, directly to the support 7 while the electrical connector is fixed to the support via the electronic card 9, which is fixed to the support.
- the light source 6 is electrically connected to the electrical connector 8 via the electronic card 9.
- electrical wires 10 are soldered both to the light source 6 and to the electronic card 9.
- the support 7 comprises a base 71 of substantially rectangular shape and extending in a first plane.
- An XYZ reference is defined as follows: A first axis X is parallel to the two longest sides of the rectangle forming the base of the support. A second Y axis is parallel to the two smaller sides of the rectangle forming the base of the support. The first plane, called XY plane, is therefore parallel to the X and Y axes. A third Z axis is perpendicular to the first XY plane. The X, Y and Z axes therefore form an orthogonal reference.
- the base could comprise a different shape: it could for example be square, triangular, polygonal. At least one of the sides of the base could have a curved shape, such as the shape of an arc of a circle.
- the base 71 comprises two opposite faces: a first face 71A and a second face 71B.
- the light source 6, the electrical connector 8 and the electronic card 9 are arranged on the first face 71A of the base. Since the base is rectangular in shape, it comprises four distinct rectilinear edges 72A, 72B, 72C and 72D. Edges 72B and 72D correspond to the long sides of the rectangle and edges 72A and 72C correspond to the short sides of the rectangle.
- the support 7 comprises an opening 73 intended to cooperate with a fixing means.
- the support can be fixed directly or indirectly to the housing 2 of the luminous device 1.
- the support can be fixed directly to the means for shaping a light beam 4, which allows a particularly precise positioning of the light source 6 with respect to the means for shaping a light beam 4.
- the opening 73 can be circular in shape, so as to cooperate with a fixing screw.
- the opening 73 can be arranged substantially at the center of the base 71.
- the base 71 also includes a pedestal 74 on which the light source 6 is fixed.
- This pedestal 74 forms a local elevation of the base 71. It can for example have a generally rectangular shape with one or more rounded sides.
- the pedestal may for example have dimensions along the X and Y axes of the order of twice the dimensions of the light source respectively along these same axes.
- the pedestal 74 makes it possible to position the light source 6 in an elevated manner relative to the electronic card 9. This prevents electrical components arranged on the electronic card 9 from intercepting the light rays produced by the light source 6. It also facilitates the process of soldering the electrical wires 10 to the light source 6.
- the support 7 also comprises first means 75 for positioning the support relative to the housing 2. These first positioning means 75 make it possible to position the support precisely within the housing 2. These first positioning means 75 are formed by two openings arranged on either side of the pedestal 74. Finally, the support 7 comprises second positioning means 76 of the electronic card 9. These second positioning means 76 are formed by two lugs extending from the first face 71A along the axis Z. They cooperate with holes of corresponding size provided in the electronic board 9.
- the electronic board 9, or printed circuit board 9, extends parallel to the XY plane. It generally has the shape of a "U”.
- the electrical wires 10 are welded to a first branch of the "U” while the electrical connector 8 is arranged on a second branch of the "U”.
- the opening 73 opens between the two branches of the "U”.
- the electronic card 9 can be in direct contact with the first face 71A, or connected to the latter via a layer of a thermally conductive material, for example a thermal paste or a thermal glue.
- the electrical connector 8 is a generally parallelepiped-shaped female connector. It may comprise a plastic body provided with snap-fastening means making it possible to hold a male connector in position.
- the electrical connector 8 comprises an inlet 81 oriented parallel to the plane in which the base extends, and in particular parallel to one of the edges of the base, in particular parallel to the axis X. In other words, the inlet is extends substantially in a plane perpendicular to the X axis: the movement of a male connector for connection to the electrical connector 8 is therefore a movement parallel to the XY plane, and in particular parallel to the X axis.
- the inlet 81 is positioned along a first portion 72A1 of the edge 72A of the base. With reference to the , the first portion 72A1 can be defined as one half of the edge 72A, in particular from a corner P1 of the base to approximately the center P2 of the edge 72A.
- the invention also applies to a light-emitting module in which the electrical connector 8 is a male connector.
- the entry of the male connector designates the part of the male connector intended to be introduced into a female connector. It is then a female connector which is moved, in a manner similar to what is described above for the male connector, to make the connection.
- the support 7 also comprises a first fin 77 connected to the side 72A of the base 71, that is to say the same side of the base as that where the opening 81 is arranged.
- the first fin forms a one-piece assembly with the base 71 and makes it possible to increase the total surface of the support 7.
- the first fin 77 therefore makes it possible to improve the dissipation of heat produced by the support 7.
- the first fin 77 projects with respect to the plane XY on the side of the first face 71A, that is to say on the side of the electrical connector 8. In other words, the first fin 77 extends in a half-space delimited by the plane XY, this half-space comprising in particular the electrical connector 8.
- the first fin 77 is connected to the base 71 by a single connecting segment L1.
- a “segment” is a portion of an uninterrupted line delimited by two extremities.
- the two ends of the L1 link segment are identified by points P2 and P3 on the .
- the connecting segment is a straight segment, that is to say a rectilinear segment.
- the connecting segment could also be a curved segment, in particular on the assumption that the base does not have a rectangular shape.
- the connecting segment L1 is arranged along a second portion 72A2 of the first edge 72A.
- the second portion 72A2 is distinct from the first portion 72A1.
- the second portion 72A2 is the portion of the edge 72A complementary to the first portion 72A1.
- Point P3 substantially corresponds to a corner of base 71. Points P1 and P3 delimit edge 72A.
- the first fin 77 is not connected to the base by two or more connecting segments.
- the first fin 77 is also not connected to the base by a discontinuous connection line.
- the first fin 77 is not a piece attached to the base 71 and fixed thereto but is integral with the base.
- the light-emitting module 5 thus has a free volume VL1, or free space, positioned on the side of the first face 71A and plumb with the electrical connector 8.
- This free volume VL1 is delimited on a first side by the first portion 72A1 of the first edge 72A of the base 71 and on a second side by the first fin 77.
- the free volume VL1 consists of ambient air. Neither the first fin 77 nor even any other part of the support 7 extends into the free volume.
- the free volume VL1 comprises dimensions adapted to allow manual access to the electrical connector 8.
- the free volume VL1 comprises dimensions along the Y and Z axes at least equal to the dimensions of the electrical connector 8 respectively along these same axes.
- the free volume VL1 extends at least opposite the entrance to the electrical connector.
- the free volume VL1 is not delimited by other elements of the light-emitting module other than the first edge 72A and the first fin 77. It is therefore an open volume leaving wide access to the connector connector 8.
- the free volume VL1 allows an operator's hand to easily access the electrical connector 8.
- the first fin 77 comprises a primary part 77A extending substantially in a second plane YZ.
- the second YZ plane is parallel to the Y and Z axes and therefore perpendicular to the first XY plane.
- the primary part 77A also comprises a rectangular shape with short sides parallel to the Y axis and long sides parallel to the Z axis. One of the short sides of the primary part of the fin corresponds substantially to the connecting segment L1.
- the first fin 77 also comprises at least one secondary part 77B extending in a third XZ plane perpendicular to the first XY plane and to the second YZ plane.
- the first fin 77 comprises two secondary parts 77B arranged along the two long sides of the primary part 77A.
- the two secondary parts 77B can also have a substantially rectangular shape. They may have substantially the same size or one of the two secondary parts may be larger than the other.
- the first fin 77 could comprise a different number of secondary parts, in particular one or three secondary parts connected to the primary part 77A by its two long sides and/or by its short side opposite to the connecting segment L1.
- the secondary part or parts 77B extend in a volume V1 defined by an orthogonal projection of the base 71, that is to say a projection of the base along an axis perpendicular to the plane in which it extends. , i.e. a projection along the Z axis.
- This volume V1 is in particular delimited by dotted lines on the .
- the secondary part or parts 77B are overhanging the base 71.
- the support 7 also includes a set of second fins 78B, 78C, 78D projecting from the first plane XY.
- the second fins 78B, 78C, 78D are connected to the base 71 by a set of second connecting segments L2B, L2C, L2D arranged respectively along the edges 72B, 72C and 72D of the base 71.
- the second fins 78B , 78C, 78D extend perpendicular to the base, on the side of the second face 71B of the base. The second fins therefore extend in a direction opposite to the first fin 77.
- Each of the second fins 78B, 78C, 78D comprises a generally rectangular shape and extends over the entire length of the edge 72B, 72C, 72D of the base to which it is connected.
- each fin can comprise a primary part defining a first plane perpendicular to the base and a secondary part defining a second plane perpendicular to the base and perpendicular to the first part.
- these different planes could not be perpendicular.
- the angle formed between these different planes could for example be between 45° and 135°.
- each fin and the base as well as between each part of the same fin, rounded edges can be provided.
- These roundings make it possible to obtain non-contending surfaces.
- the rounding formed between the primary part and the secondary part of the first fin makes it possible to provide a smooth and edgeless surface close to the entrance 81 of the electrical connector 8.
- the operator responsible for connecting the male connector in the electrical connector 8 does not risk being injured on a sharp edge of the first fin.
- the electrical connector 8 is a male connector cooperating with a female connector.
- these roundings allow the support to be manufactured by bending a metal sheet as will be detailed later.
- the primary part 77A of the first fin may have a surface comprised between 10% and 50% of the surface of the base, in particular approximately 25%.
- the total surface of the fins 77, 78B, 78C, 78D can be between 50% and 150% of the surface of the base.
- the short sides of the base 71 can for example have a dimension comprised between 20mm and 80mm.
- the long sides of the base 71 can for example have a dimension comprised between 40mm and 100mm.
- the thickness of the base and of the various fins can be uniform and/or comprised for example between 1 mm and 4 mm.
- the light-emitting module is fixed in the casing 2 of the luminous device 1 so that the XY plane in which the base 71 extends is a horizontal plane.
- the electrical harness F therefore extends substantially horizontally from the male connector plugged into the electrical connector 8. All of the fins extend parallel to the axis Z which is therefore a vertical axis. Heat dissipation through vertical surfaces is more efficient than heat dissipation through horizontal surfaces. Thus, the fins significantly improve the efficiency of the heat exchange.
- the light-emitting module 105 comprises a light source 106, an electrical connector 108 and an electronic card 109 which are identical respectively to the light source 6, to the electrical connector 8 and to the electronic card 9 of the first embodiment.
- the light-emitting module 105 also comprises a support 107 provided with a base 171 and a set of second fins 178B, 178C, 178D identical respectively to the base 71 and to the second fins 78B, 78C, 78D.
- the base 171 has a rectangular shape whose four edges are identified by the references 172A, 172B, 172C and 172D.
- the light source 106, the electrical connector 108 and the electronic card 109 are arranged on a first face 171A of the base.
- Electrical connector 108 includes an inlet 181 positioned along a first portion 172A1 of base edge 172A.
- the second embodiment differs from the first embodiment in that the support 107 comprises a first fin 177 of different shape from the first fin 77 and in that it comprises a third fin 179.
- the common characteristics between the two light emitting modules 5, 105 and their variant embodiments are not described again below.
- the first fin 177 is connected to the base 171 by a single connecting segment L101.
- the connecting segment L101 is arranged along a second portion 172A2 of the first edge 172A, distinct from the first portion 172A1.
- the first fin 177 comprises a planar primary part 177A substantially in the shape of an "L".
- the primary part 177A has the shape of two rectangles R1, R2 juxtaposed and identified by dotted lines on the .
- a first rectangle R1 has a side corresponding to the single connecting segment L101.
- a second rectangle R2 is materially linked to the first rectangle R1 by a connecting segment L102, the connecting segments L101 and L102 forming two opposite sides of the first rectangle R1.
- the connecting segment L102 forms only part of one of the sides of the second rectangle R2.
- the side of the second rectangle R2 comprising the connecting segment L102 extends as far as the plumb of the electrical connector 108.
- the second rectangle R2 therefore has a dimension along the Y axis that is greater than the first rectangle R1.
- the dimension of the second rectangle R2 along the Y axis is substantially equal to the dimension of the base 171 along the Y axis.
- a free volume VL101 thus remains present around the electrical connector 108 and allows an operator to easily connect the electrical harness F.
- the "L" shape of the primary part 177A of the first fin 177 makes it possible to further increase the surface of heat exchange with ambient air to more effectively cool the light source.
- the first fin 177 further comprises two secondary parts 177B extending perpendicular to the primary part 177A, on either side of the primary part 177A.
- the secondary parts 177B do not extend towards the base 171 but on the contrary in a direction opposite to the base 171.
- the fin 177 is not inscribed in a volume defined by a projection orthogonal to the base 171.
- the secondary parts could be turned towards the base 171 as in the first embodiment, which would make it possible to increase the compactness of the light-emitting module.
- the secondary part 77B could extend in a direction opposite to the base 71.
- the third fin 179 projects from the base 171 on the side of a second face 171B of the base, the second face 171B being opposite the first face 171A.
- the third fin extends on the same side as the second fins 178B, 178C, 178D, that is to say on the side opposite to the face of the base on which are arranged the light source 106, the connector electric 108 and the electronic card 109.
- the third fin extends substantially perpendicular to the base 171, parallel to the plane YZ.
- the third fin is connected to the base 171 by a connecting segment L103 arranged along the first portion 172A1 of the said first edge 172A.
- the dimensions of the third fin substantially correspond to the free volume VL101 formed in the hollow of the "L" of the primary part 177A of the first fin 177.
- the third fin has a generally rectangular shape.
- the two sides parallel to the Z axis of the third fin 179 have substantially the same dimension as the sides parallel to the Z axis of the rectangle R1.
- the two sides parallel to the Y axis of the third fin 179 have substantially the same dimension as the difference between the dimension of the second rectangle R2 along the Y axis and the dimension of the first rectangle R1 along the Y axis.
- the support can first be manufactured by cutting and bending a metal sheet.
- the supports 7, 107 have shapes compatible with such a manufacturing process, in particular stamping.
- the support 5, 105 is stamped.
- the support can therefore advantageously be a one-piece piece, that is to say made from one and the same piece.
- Such a method is simple to implement and makes it possible to achieve lower production costs.
- the shapes of the proposed support avoid generating large scraps in the cut metal sheet.
- the third fin 179 is formed with the material corresponding to the hollow of the "L" of the primary part 177A. The third fin 179 can therefore be formed without increasing the dimensions of the pattern in the metal sheet from which the support 107 is derived.
- the electronic card 9, 109 can be placed on the base simply by moving the electronic card along an axis perpendicular to the plane in which the base extends, without interference with the first fin.
- the secondary parts 77B, 177B of the first fin and the electronic card therefore include dimensions compatible with such an assembly method.
- the assembly method can therefore remain sufficiently simple to implement because a mechanical arm that can move only along the Z axis suffices to deposit the electronic card.
- the electronic card can then be fixed to the support and the electrical wires 10 can be soldered to the light source and to the electronic card.
- the light-emitting module 5, 105 thus obtained can then be fixed to a means for shaping a light beam 4, in particular by using a screw cooperating with the hole 73 provided for this purpose.
- An optical module 3 is thus obtained which can be fixed to the housing 2 of the light device 1.
- the electrical harness F can also be connected to the electrical connector 8. This connection operation is easy because the fins, although having an exchange surface important with the ambient air, leave a free volume VL1, VL101 around the electrical connector sufficient for the passage of a hand.
- the roundings formed at the interface between the fins and the base or between the different parts of the first fin provide non-contending surfaces, which avoids injuring or gripping the fingers of an operator handling the electrical harness. . Subsequently, during a possible maintenance operation, the electrical harness F can also be easily disconnected from the electrical connector.
- the heat exchange with the ambient air is considerably improved and therefore the maintenance of an optimum operating temperature of the light-emitting module.
- the support remains compact and easily integrated into the housing of a lighting device.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims (13)
- Module d'émission de lumière (5, 105) comprenant une source de lumière (6, 106), notamment une diode électroluminescente, un support (7, 107) destiné à dissiper de la chaleur, et un connecteur électrique (8, 108) relié à la source de lumière, le support comprenant une base (71, 171) s'étendant sensiblement dans un premier plan (XY), la base étant pourvue d'une première face (71A, 171A) sur laquelle sont fixés la source de lumière et le connecteur électrique, le connecteur électrique comprenant une entrée (81, 181) agencée le long d'une première portion (72A1, 172A1) d'un premier bord (72A, 172A) de ladite base, le support comprenant une première ailette (77, 177) en saillie par rapport audit premier plan du côté de ladite première face, la première ailette étant reliée à la base par un unique segment de liaison (L1, L101), le segment de liaison étant agencé le long d'une deuxième portion (72A2, 172A2) dudit premier bord, la deuxième portion étant distincte de la première portion.
- Module d'émission de lumière (5, 105) selon l’une des revendications précédentes, caractérisé en ce que la première ailette (77, 177) comprend une partie primaire (77A, 177A) s'étendant sensiblement dans un deuxième plan (YZ) perpendiculaire audit premier plan (XY).
- Module d'émission de lumière (5, 105) selon la revendication précédente, caractérisé en ce que l'ailette comprend au moins une partie secondaire (77B, 177B) s'étendant sensiblement dans un troisième plan (XZ) perpendiculaire audit premier plan (XY) et audit deuxième plan (YZ).
- Module d'émission de lumière (5, 105) selon la revendication précédente, caractérisé en ce que l'au moins une partie secondaire s'étend dans un volume (V1) défini par une projection orthogonale de la base (71, 171).
- Module d'émission de lumière (5, 105) selon l’une des revendications précédentes, caractérisé en ce que le support (7, 107) comprend une deuxième ailette (78B, 78C, 78D, 178B, 178C, 178D) en saillie par rapport audit premier plan (XY), la deuxième ailette étant reliée à la base par un deuxième segment de liaison agencé le long d'un deuxième bord (72B, 72C, 72D, 172B, 172C, 172D) de la base, le deuxième bord étant distinct du premier bord (72A, 172A).
- Module d'émission de lumière (5, 105) selon la revendication précédente, caractérisé en ce que la deuxième ailette (78B, 78C, 78D, 178B, 178C, 178D) est en saillie par rapport audit premier plan du côté d'une deuxième face (71B, 171B) de la base, la deuxième face étant opposée à ladite première face (71A, 171A).
- Module d'émission de lumière (105) selon l’une des revendications précédentes, caractérisé en ce que le support (107) comprend une troisième ailette (179) en saillie par rapport audit premier plan (XY) du côté d'une deuxième face (171B) de la base, la deuxième face étant opposée à ladite première face (171A), la troisième ailette (179) étant reliée à la base par un troisième segment de liaison (L103) agencé le long de la première portion (172A1) dudit premier bord (172A).
- Module d'émission de lumière (5, 105) selon l'une des revendications précédentes, caractérisé en ce que la base (71, 171) comprend une forme sensiblement rectangulaire, et/ou en ce que la première ailette (77, 177) comprend une forme sensiblement rectangulaire ou une forme en "L".
- Module d'émission de lumière (5, 105) selon l'une des revendications précédentes, caractérisé en ce que le support (7, 107) est obtenu par pliage d'une feuille métallique.
- Module d'émission de lumière (5, 105) selon l'une des revendications précédentes, caractérisé en ce qu'il comprend une carte électronique (9, 109) s'étendant le long de ladite première face (71A, 171A), la carte électronique étant reliée électriquement à la source de lumière (6, 106) et au connecteur électrique (8, 108), la carte électronique comprenant une forme adaptée pour être déposée sur la première face de la base par un déplacement suivant un axe perpendiculaire audit premier plan (XY) sans interférence avec la première ailette (77, 177).
- Module optique (3), caractérisé en ce qu'il comprend un moyen de mise en forme d'un faisceau lumineux (4) et un module d'émission de lumière (5, 105) selon l'une des revendications précédentes.
- Module optique (3) selon la revendication précédente, caractérisé en ce que le support (7, 107) du module d'émission de lumière (5, 105) est fixé directement audit moyen de mise en forme d'un faisceau lumineux (4), notamment par l'intermédiaire d'une vis de fixation passant au travers d'une ouverture (73, 173) prévue dans la base (71, 171) du support.
- Dispositif lumineux (1) pour véhicule automobile, caractérisé en ce qu'il comprend un boîtier (2) destiné à être fixé à un véhicule automobile et un module optique (3) selon l'une des revendication 11 ou 12, le module optique étant agencé à l'intérieur du boîtier.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22769657.2A EP4396493A1 (fr) | 2021-08-31 | 2022-08-29 | Module d'émission de lumière comprenant un support destiné à dissiper de la chaleur |
CN202280059269.XA CN117897578A (zh) | 2021-08-31 | 2022-08-29 | 包括用于散热的支撑件的发光模块 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2109080 | 2021-08-31 | ||
FR2109080A FR3126475B1 (fr) | 2021-08-31 | 2021-08-31 | Module d'émission de lumière comprenant un support destiné à dissiper de la chaleur |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023031072A1 true WO2023031072A1 (fr) | 2023-03-09 |
Family
ID=77999179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/073870 WO2023031072A1 (fr) | 2021-08-31 | 2022-08-29 | Module d'émission de lumière comprenant un support destiné à dissiper de la chaleur |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4396493A1 (fr) |
CN (1) | CN117897578A (fr) |
FR (1) | FR3126475B1 (fr) |
WO (1) | WO2023031072A1 (fr) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010176859A (ja) * | 2009-01-27 | 2010-08-12 | Ichikoh Ind Ltd | 車両用灯具 |
JP5712914B2 (ja) * | 2011-12-17 | 2015-05-07 | 豊田合成株式会社 | 照明装置 |
CN105020652B (zh) * | 2015-07-23 | 2017-09-19 | 安徽卡澜特车灯科技有限公司 | 高效率led双芯片远近光一体化汽车前照大灯模组 |
US20170299143A1 (en) * | 2014-09-30 | 2017-10-19 | Valeo Vision | Lighting module comprising at least one component and a connector which are disposed on a heat dissipater, and lighting device for automotive vehicle comprising such a module |
EP3396239A1 (fr) * | 2017-04-27 | 2018-10-31 | Valeo North America, Inc. | Lampe destinée à être utilisée dans un phare |
US10330285B2 (en) * | 2016-10-25 | 2019-06-25 | Sl Corporation | Lamp for vehicle |
US20210022244A1 (en) * | 2018-03-29 | 2021-01-21 | Valeo Vision | Electronic assembly and automotive luminous device |
-
2021
- 2021-08-31 FR FR2109080A patent/FR3126475B1/fr active Active
-
2022
- 2022-08-29 EP EP22769657.2A patent/EP4396493A1/fr active Pending
- 2022-08-29 CN CN202280059269.XA patent/CN117897578A/zh active Pending
- 2022-08-29 WO PCT/EP2022/073870 patent/WO2023031072A1/fr active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010176859A (ja) * | 2009-01-27 | 2010-08-12 | Ichikoh Ind Ltd | 車両用灯具 |
JP5712914B2 (ja) * | 2011-12-17 | 2015-05-07 | 豊田合成株式会社 | 照明装置 |
US20170299143A1 (en) * | 2014-09-30 | 2017-10-19 | Valeo Vision | Lighting module comprising at least one component and a connector which are disposed on a heat dissipater, and lighting device for automotive vehicle comprising such a module |
CN105020652B (zh) * | 2015-07-23 | 2017-09-19 | 安徽卡澜特车灯科技有限公司 | 高效率led双芯片远近光一体化汽车前照大灯模组 |
US10330285B2 (en) * | 2016-10-25 | 2019-06-25 | Sl Corporation | Lamp for vehicle |
EP3396239A1 (fr) * | 2017-04-27 | 2018-10-31 | Valeo North America, Inc. | Lampe destinée à être utilisée dans un phare |
US20210022244A1 (en) * | 2018-03-29 | 2021-01-21 | Valeo Vision | Electronic assembly and automotive luminous device |
Also Published As
Publication number | Publication date |
---|---|
FR3126475A1 (fr) | 2023-03-03 |
EP4396493A1 (fr) | 2024-07-10 |
CN117897578A (zh) | 2024-04-16 |
FR3126475B1 (fr) | 2024-01-05 |
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