EP2926048A1

EP2926048A1 - Motor vehicle lighting and/or signalling device

Info

Publication number: EP2926048A1
Application number: EP13796092.8A
Authority: EP
Inventors: Damien Cabanne; Manuel Gomez; Carlos Gomez; Juan Antonio Rubia Mena; Eric Moisy; Jose-Antonio Aguilar del Moral
Original assignee: Valeo Iluminacion SA
Current assignee: Valeo Iluminacion SA
Priority date: 2012-11-30
Filing date: 2013-11-28
Publication date: 2015-10-07
Also published as: CN104838202A; CN104838202B; FR2998944B1; US9829172B2; WO2014083123A1; FR2998944A1; US20150308652A1

Abstract

Optical module for a motor vehicle lighting and/or signalling device comprising: - an optical deflection component (12) and - a support member (20) to which said optical deflection component (12) is attached, wherein said support member (20) has adapter fastening means (26) for fastening an adapter to which a light source is attached, and wherein said first optical deflection component (12) comprises adapter indexing means arranged such that they are able to position the adapter according to two separate, intersecting axes relative to the first optical deflection component (12).

Description

Lighting and / or signaling device for a motor vehicle

The invention relates to a lighting and / or signaling module comprising or intended to include a light source adapter, in particular a light-emitting diode, intended to bear on the support of a first optical element of this module. It also relates to the corresponding adapter.

Lighting and / or signaling devices for a motor vehicle, such as headlamps and taillights, consist of a housing closed by a closure glass and containing one or more optical modules. The light beams emitted by these devices are made by this or these optical modules, which can work together or separately. These optical modules comprise a light source associated with one or more optical deflection elements, and possibly caches, for modulating the shape of the beam as well as the distribution of the light intensity in this beam.

The document FR2950129 comprises an optical module using an LED, or light-emitting diode, to enable management of the power supply of this LED, it is placed on a printed circuit. The printed circuit board on which the LED is fixed is fixed on an adapter positioning it in the optical module. This adapter allows you to change the LED of this module by removing and replacing the adapter. In order to allow the cooling of the LED, the adapter is thermally conductive and must be in contact with the radiator supporting the reflector over the largest possible area. This requires great constraints on the manufacture of the adapter and the radiator to precisely position the adapter.

A problem of the present invention is to remedy this.

The object of the invention is therefore a light source adapter, comprising:

at least one light source,

a support block to which the light source is directly or indirectly fixed, said support block being a radiator comprising fins and being arranged to dissipate the heat released by this light source,

- Additional fastening means adapted to allow the attachment of the adapter.

The block may in particular have the LED on one side and the fins on the other, in particular on both sides of a plate.

Thus, we will be able to use an adapter to cool quickly and directly the light source. The adapter can then be positioned and attach to narrower portions than in the prior art, including tenons, notches on an optical element support having a day to let these fins. The positioning of the adapter and the module is thus simplified. This is particularly advantageous in the context of a replacement of the light source, especially if it is an LED.

The adapter may also include a printed circuit board, to which the light source is attached and connected.

According to one embodiment of the invention, the adapter also comprises:

a printed circuit, on which the light source is fixed and connected,

complementary fixing means able to allow the fixing of the adapter,

complementary indexing means formed on said printed circuit, arranged so that when an element is positioned relative to these indexing means, the adapter is positioned with respect to this element along two distinct and intersecting axes; .

Thus this adapter will be able to index precisely with respect to these indexing means, in particular with a module according to the invention. This is particularly useful as part of a replacement of the light source, this replacement can be done on the vehicle.

Also, this makes it possible to have an adapter carrying a standard light source that can adapt to different types of optical modules. This adapter is conceivable for LEDs, which is all the more advantageous. Indeed, an LED being an electronic component, in many optical module designs, its failure requires the change of the complete module or even the lighting and / or signaling device. With the invention, it is possible to change a reduced part of the module, namely the adapter and its light source. This reduces the cost of replacement.

Note that this printed circuit may be a printed circuit board, the adapter may include a support block, for example a radiator, on which is fixed the printed circuit. This circuit can also be directly formed or printed on the support block, which can also be in this case a radiator. The support block may comprise fins.

The adapter according to the invention may also have, in addition to the main features set forth in the preceding paragraphs, one or more of the following additional features:

said complementary indexing means are orifices; it is a simple means of realization;

said holes are holes passing through the printed circuit from one side to the other; thus strengthening the positioning;

- The adapter comprises a support block on which is fixed the printed circuit, said support block comprising cavities vis-à-vis the through holes, each through hole opening entirely into a cavity which is specific thereto; this allows a greater tolerance on the length of the indexing means of the different types of module on which the adapter can be mounted;

the adapter comprises a metal rod hinged on one side on said adapter, said rod further comprising a fixing part intended to be fixed to an element, such as an optical module, said rod being arranged to allow a fixation in compressing the adapter to this element;

- The joint comprises a through hole, inside which an end of said metal rod is free to rotate;

the articulation is arranged on a fin of said adapter or on a projecting part distinct from the fins of the adapter;

- said metal rod comprises a portion adapted to cooperate with a notch; said metal rod comprises a gripping portion in the form of a loop intended to be grasped in order to allow the recess of the rod;

- Said rod is in the form of a closed loop or not, articulated on one side and with a portion adapted to cooperate with a notch of the other;

- The adapter comprises a connector connected to the light source and adapted to be connected to a power source for supplying said light source.

Another object of the invention is an optical module for a lighting and / or signaling device for a motor vehicle comprising:

a first optical deflection element,

a support of this optical deflection element, said first optical deflection element being fixed to said support,

wherein said support comprises adapter attachment means;

an adapter according to the invention fixed to said support of this optical deflection element by means of said adapter fixing means,

This optical module may in particular be an optical module for lighting and / or signaling device for a motor vehicle comprising:

a first optical deflection element,

wherein said support comprises adapter fixing means fixing the adapter on which the light source is fixed or receiving a fixing element of this adapter, and wherein said first optical deflection element comprises indexing means of adapter arranged to position this adapter relative to the first optical deflection element along two distinct and intersecting axes.

Thus this module will be able to receive an adapter that will index directly on the optical element, also called the optical deflection element in the present application, at least along two distinct and intersecting axes. Compared to the prior art, the plaintiff could have sought to gain precision machining or manufacturing elements, to position during assembly even more precisely. In its inventive step, it has been oriented differently and found a solution allowing it to reduce its coastline, which, in particular given the examples disclosed in the prior art, particularly in view of FR2950129, n ' is not obvious. It has freed itself from indexing on the support of the element taught by the prior art and has found means for directly indexing the light source on the optical element at least along two axes. There is thus a coastline along these two reduced axes and increased precision. It should be noted that this advantage is obtained while maintaining a fixation to the support of the optical element, this makes it possible to exercise the forces during the disassembly of the adapter on the support and not directly on the optical deflection element. This is particularly suitable for replacing the light source, especially when it is an LED.

The optical module according to the invention may also have, in addition to the main features mentioned in the preceding paragraphs, one or more of the following additional features:

the optical deflection element may in particular be a reflector, an optical lens, a light guide.

the indexing means of said support comprise orifices and / or tenons; this allows to position and index an adapter with complementary shapes in simple movements; these means are also easy to achieve;

the support of the optical deflection element is a heat sink and comprises:

a material capable of conducting heat,

contact surfaces comprising a part of this material, so as to transmit the heat of an element which would be in contact with said contact surfaces;

this support will also be able to serve as heat sink of the adapter to be mounted on it, and in particular to directly dissipate the heat released by the light source attached to the adapter; said support may comprise fins, the support then being a finned radiator; said support may comprise rear fins situated at the rear of said support and behind the optical deflection element with respect to the direction of propagation according to which the optical deflection element is intended to deflect the rays; this allows once the module mounted inside a lighting device and / or deflection, to evacuate the heat backwards; the exchange surface is also increased without space at the path of the light rays emitted by the source and deflected by the optical deflection element;

- The rear wings comprise a recess arranged to create a clear space fins, within which is at least a portion of said adapter fixing means; this improves the compactness of the system;

the support also comprises a connector intended to be connected on the one hand to the power supply of a vehicle and on the other hand to the light source, the connector being housed in said clear space of fins;

said support is in the form of an "L" and comprises:

on a first branch of the "L", said rear wings,

- possibly, on a second branch of the "L" other fins; this allows a simple design, to distribute the fins, the optical deflection element can for example be mounted between the branches of the "L" to improve heat dissipation;

- The adapter fixing means, namely the means for attaching the adapter to the module, comprise at least one tab with at least one notch adapted to receive a metal fixing rod; it is a simple means of fixation; the fixation by rod makes it possible to perform a plating of pieces against each other by using the spring effect of the rod;

- The adapter fixing means comprise another notch adapted to receive a metal fastening rod, so that each notch defines a different fastening position of the metal rod; this makes it possible to define a pre-positioning of an adapter during its replacement;

said support comprises a metal rod hinged on one side to said support, said rod further comprising a fixing portion intended to be attached to the adapter, the rod being arranged to allow compression attachment to the module; there is thus a simple attachment means avoiding the use of screws which requires the use of a screwdriver during the replacement; also when replacing the light source and its adapter, this fastening means is not likely to fall into the lighting and / or signaling device in which the module is mounted;

- According to a simple embodiment, the hinge comprises a through hole, inside which an end of said metal rod (190; 290) is free in rotation;

the hinge is arranged on a fin of said optical deflection element support or on a distinct projecting part of the fins; this articulation is simple to achieve;

said metal rod comprises a hooking part able to come into cooperation with a notch of adapter fixing means; the attachment can thus be easily achieved in one movement, thus facilitating the replacement of the adapter, this being all the more advantageous because access to the lighting and / or signaling device is sometimes difficult on a vehicle;

the metal rod comprises a gripping portion in the form of a loop intended to be grasped in order to allow the recess of said rod of the adapter fixing means;

the rod is in the form of a closed loop or not, articulated on one side and being fixed to said adapter fixing means of the other;

said support comprises:

- one day vis-à-vis the optical deflection element,

- Guide vanes on both sides of this day, especially parallel to each other,

bearing surfaces between this day and these guide vanes,

said guide vanes being arranged to allow the guiding of a block of width close to the distance between these guide vanes to position it in contact with these bearing surfaces; so when the adapter is such a block, it is possible to drag it while the module is difficult to access and / or not or not very visible; said support surfaces may be said contact surfaces mentioned above;

- The contact surfaces are covered by a compressible element and thermally conductive, including a charged silicone; this makes it possible to compress the compressible element until the adapter touches the optical deflection element and then indexes along a third axis and not on the support, the adapter thus being indexed directly on the element of optical deflection in all directions of space.

at least one light source directly or indirectly attached to the adapter and emitting light rays towards the first optical deflection element, said support being arranged to let these light rays pass, the adapter comprising complementary indexing means co-operating with said adapter indexing means so that said adapter and the first optical deflection element are positioned relative to each other along two distinct and intersecting axes.

said adapter indexing means are orifices and in which said complementary indexing means are a shape complementary to the shape of this orifice and are housed inside this orifice;

said complementary indexing means are orifices and in which said adapter indexing means have a shape complementary to the shape of these orifices and are housed inside these orifices;

the adapter comprises complementary fixing means cooperating with said adapter fixing means which are carried by said support;

these complementary fastening means or these adapter fixing means comprise a spring secured to the support and the adapter and arranged so as to press said support against said adapter; this spring can be a metal rod;

the adapter is an adapter object of the invention, as previously described; the support comprises a protruding part in the form of a claw housed between two fins of the adapter; this claw can be arranged with a game, it then only serves as guiding means during replacement; the adapter can also be in abutment against this claw, which also serves as adapter attachment means;

said support comprises a protruding part in the form of a claw, said projecting part comprising the articulation of a metal rod allowing attachment of said adapter to said adapter fixing means;

a metal rod is articulated at one end to said support, and a hooking part of the rod is hooked to an adapter fixing means carried by said support, said rod comprising a plating portion situated between the articulated end and said hooking portion, the plating portion being supported against the adapter, so as to press it against said support; it is a simple method of attachment to use the resilient effect or spring of the rod to fix in a single tilting movement and attachment the adapter to the module;

the adapter has plated contact surfaces in direct or indirect contact with contact surfaces of the support; the maintenance is firm; to further strengthen the maintenance, these contact surfaces can be flat; the optical module comprises a compressible and thermally conductive element, in particular a charged silicone, located between these contact surfaces;

said adapter being in direct contact with the optical deflection element, so that the adapter is indexed with respect to the optical deflection element along another axis distinct from the two other axes; the adapter is thus indexed directly on the optical deflection element in all directions of space;

these contact surfaces are in direct or indirect thermal contact so that the adapter and said support of the optical deflection element form a single heat sink; the module is particularly effective because the heat dissipation is made closer to the base of the light source, which is even more advantageous when the latter is an LED; the single heat sink comprises fins located for some on the adapter and for others on said support;

the adapter comprises a connector connected to the light source and in which the support also comprises a connector, one of the connectors being plugged into the other; the arrangement of the two connectors can be such that the connectors are directly displayed when the adapter is positioned and fixed.

In the optical modules as well as the adapters according to the invention, the adapter may comprise several light sources.

The present invention also applies to optical modules adapted to receive an adapter according to the invention, especially when the adapter is not mounted on it. These modules can present the characteristics of the previously mentioned modules.

In the optical modules as well as the adapters according to the invention, the light source (s) may be one or more electroluminescent diode (s). The modules according to the invention are particularly suitable for LEDs because:

they allow their replacement in small spaces,

they allow precise positioning of the LED with respect to the optical element,

the fixing of the reflector exerts less stress on this optical element, the fixing being done on a support distinct from the optical element,

- According to the embodiments, they allow good thermal evacuation of the heat released by the LED or LEDs.

Another object of the invention is a lighting and / or vehicle signaling device comprising a module according to the invention. For example, it may be a projector, also called a vehicle headlight.

The optical module may be a lighting module, for example to produce a lighting beam or a passing beam.

Other features and advantages of the invention will appear on reading the detailed description which follows, for the understanding of which reference will be made to the appended drawings, in which: FIG. 1 is a perspective view of an optical module with its adapter according to a first embodiment of the invention;

FIG. 2 is a view of the object of FIG. 1 but from behind;

FIG. 3 is a perspective view of the optical module of FIG. 1 without its adapter;

FIG. 4 is a perspective view of the adapter of FIG. 1 without the optical module;

- Figure 5 shows the mounting of the adapter of Figure 4 in the module of Figure 3;

FIG. 6 is an enlargement of a portion of the illustration of FIG. 5, seen from another angle;

FIG. 6 is a schematic section showing the indexing zone of the adapter in the optical module according to the first embodiment;

FIG. 7 is a rear perspective view of an optical module with its adapter prefixed in the replacement position according to a second embodiment of the invention;

- Figure 8 is a zoom in Figure 7 but with the adapter fixed in the operating position;

FIG. 9 is a schematic representation of an optical module with its adapter according to a third embodiment of the invention;

FIG. 10 is a schematic representation of a possible arrangement of the connectors of the optical module and of the adapter according to the invention;

- Figure 1 1 is a schematic representation of a connection of the optical module to the adapter according to the invention;

- Figure 12 is a schematic representation of a variant of a connection of the optical module to the adapter according to the invention.

The different elements appearing in several figures will, unless otherwise specified, have the same reference. Moreover, the elements appearing in several figures, will not be systematically described or cited again for each figure. Figures 1 to 12 show three embodiments of the invention. These illustrations are examples of embodiments.

The optical module 10, 1 and 10, for a lighting and / or signaling device for a motor vehicle of the invention comprises:

a first optical deflection element 12, namely in the case of these examples a reflector 12

a support 20, 120, and 220, of the reflector 12, the reflector 12 being fixed to said support,

wherein said support 20, 120, and 220 comprises adapter fixing means 26, 126 and 226 adapted to attach an adapter to which a light source is attached or to receive a fastener of said adapter, and which the reflector 12 comprises indexing means 61, 62 of adapter arranged to be able to position this adapter relative to the reflector 12 along two distinct and intersecting axes X, Y.

According to these embodiments, the indexing means 61, 62, visible in FIGS. 3 and 6, are tenons 61, 62

The support 20, 120, and 220 is a heat sink and comprises:

a material capable of conducting heat,

contact surfaces 66 comprising a part of this material, so as to transmit the heat of an element which would be in contact with said contact surfaces, such as, for example, the contact surfaces 76 of the adapter 70 illustrated in FIG. 4.

In general, the support may be a monolithic material, for example material come in one piece. It may consist essentially of the material capable of conducting heat. The material capable of conducting the heat may be metal, especially aluminum.

As illustrated, the support 20, 120, and 220 includes rear fins

24 and 25, or 124 and 125, located behind said support and behind the optical deflection element 12 relative to the direction of propagation R wherein the optical deflection element is intended to deflect the rays. The propagation direction R, is only represented in FIG. 1, but is the same on the different figures. This support thus forms a finned radiator 24 and 25, or 124 and 125.

Said support 20, 120, and 220, comprises:

one day 29 vis-à-vis the optical deflection element 12, and visible in FIG. 3,

- Guide vanes 23, 123, on both sides of this day 29, in particular parallel to each other,

bearing surfaces 66 between this day 29 and these guide vanes 23, 123, the guide vanes 23; 123 being arranged to allow the guiding of the adapter 70, 170, 270, to position it in contact with these bearing surfaces 66.

Indeed, as can be seen in FIGS. 5 and 6, the adapter according to the invention has a smaller width but close to the distance between these guide vanes 23, 123, which facilitates guiding and positioning during the replacement. of the adapter 70, 170, 270.

According to the illustrated examples, these bearing surfaces 66 are the contact surfaces. They therefore have the dual function of thermal and mechanical contact.

In these examples, the optical module is a lighting module, for example for producing a lighting beam, for example a passing beam.

The adapter 70, 170, 270 is arranged at the level of the day 29 so that the light source 13 fixed on it has its overall emission direction oriented towards the concavity of the reflector 12. This reflects the light rays emitted by the light source according to the direction of propagation R, parallel to the longitudinal axis X, in the examples shown, the direction of propagation R parallel to the longitudinal axis X here defining the direction towards the front. The light source 13 illuminates downward.

The support 20, 120, and 220 here comprise two globally "L" -shaped joined plates, for example approximately 90 °, and comprises:

on a first branch of the "L" located at the rear of the module, said rear wings, 24 and 25, 124 and 125,

on a second branch of the "L" the guide vanes 23. The second branch may include other fins, not shown.

The rear fins 25, 125 comprise a recess 25a, 125a arranged to create a clear space of fins 27, 127, within which is located at least a portion of said adapter fixing means 26, 126, 226 , here pairs of claw-shaped legs. Each tab comprises at least one notch adapted to receive a metal fastening rod 90, 190, 290 of the adapter 70, 170, 270.

In these exemplary embodiments, the adapter 70; 170; 270 of light source 13, comprises:

at least one light source 13,

a printed circuit 80, on which the light source 13 is fixed and connected,

complementary fixing means 90, 177, or 277, able to allow the attachment of the adapter 70, 170, 270,

complementary indexing means 71, 72 formed on said printed circuit 80, arranged so that when the optical module an element is positioned relative to these complementary indexing means, the adapter 70, 170, 270 is positioned relative to this element along two distinct and intersecting axes, here the longitudinal axis X and transverse Y.

These complementary indexing means are orifices 71, 72, in particular holes passing through the printed circuit 80 from one side to the other.

The light source adapter 70, 170, 270 13 comprises a support block 73 to which is attached the printed circuit 80, and thus indirectly the light source 13.

As can be seen more specifically in FIG. 4, the light source 13 is an LED comprising a substrate 15 fixed to the printed circuit 80, for example by electrodes. The substrate carries a photoemissive semiconductor element 14.

The support block is a radiator comprising:

fins 75, 175 or 275, and being arranged to dissipate the heat released by this light source, complementary fixing means 90, 177, or 277, able to allow the attachment of the adapter.

According to the invention generally the adapter or the support can carry an articulated metal rod 90, 190, 290 which will hang on or be pressed respectively on the support or the adapter.

Thus according to the first embodiment illustrated in FIGS. 1 to 6, the fins 75 on the edges of the adapter 70 comprise a hole through which the end 93 of a rod 90 passes. The end 93 of said metal rod 90 is free to rotate in this hole, so as to form an articulation of the rod 90 on these two fins. The rod is formed into an unclosed loop. Two ends 93 are articulated. The buckle can thus swing downwards to hook onto the adapter fixing lugs 26 formed on the support 20, the hooked portion of the buckle thus forming a fastening portion 91.

The support comprises a protruding guide portion and retaining 22 shaped claw.

As illustrated in FIGS. 5, 6 and 6 ', when the adapter 70 is put in place in the module 10, the adapter slides on the contact surfaces 66 of the support 20, guided transversely by the guide vanes 23 of the support. It will slide until it is blocked by the projecting lug 22, which is housed between two fins 75 of the adapter 70 thus completing the guidance.

The adapter can then be folded down so that its contact surfaces 76, located on either side of the printed circuit, comes into contact with the contact surfaces 66 of the module.

The pins 61, 62, will enter the through holes 71, 72 and index the LED 13 from the reflector 12, particularly at its focus.

As can be seen in Figure 6 ', the support block comprises cavities 74 vis-à-vis the through holes 71, each through hole opening entirely into a cavity 74 which is specific thereto. The pins 71 protrude from the printed circuit inside these cavities. They do not have need to be dimensioned exactly to the size of the holes in the PCB.

Once the adapter is positioned and plated on the support, the rod 90 is folded towards the rear branch of the "L" of the support 20 and clings to the attachment brackets 26 of the adapter.

The adapter 70 is thus kept pressed to the support 20 on one side by the rod 90 and on the other by the tab 22.

In the other embodiments, the mounting principle of the adapter 170, 270 is essentially the same, but with the differences explained below.

The metal rod 190, 290 is articulated on one side on said support 120, 220, said rod further comprising a plating portion 195, 295 intended to be fastened by plating to the adapter, the rod being arranged to allow fixation. in compression of the adapter 170, 270 to the module, resting on bearing surfaces 177, 277 of the adapter.

In the second embodiment, the through hole in which the end 193 of the rod is articulated is arranged on a fin 123 of the support 120 of the reflector 12.

In the third embodiment, the through hole in which the end 293 of the rod articulates is arranged on a projecting portion 222 distinct from the fins.

In these different embodiments, the metal rod 90, 190, 290 comprises a hooking portion 91, 191, 291 cooperating with a notch 26a, 126a, 226a adapter fixing means 26, 126, 226. .

The metal rod 90, 190, 290 comprises a gripping portion 94, 194, 294 in the form of a loop intended to be gripped to allow the recessing of said rod of the adapter fixing means, for example by grasping the finger with a finger. operator.

In the second embodiment and in the third embodiment, the plating portion 195, 295 is located between the hooking portion 191, 291 and the articulated end 193, 293. Thus the adapter 170, 270 is held pressed to the support 120, 220 on one side by the hooking of the engaging portion 191, 291 and the other by the fixing portion 195, 295.

In the second embodiment, said adapter fixing means 126 comprise another notch 126b adapted to receive the metal fastening rod 190, so that each notch 126a, 126b defines a different fastening position of the metal rod. . Thus, as illustrated in FIG. 7, the rod is positioned in the intermediate notch 126b, allowing pre-positioning of the module before its final fixing, for example to adjust it correctly before folding it down. Then, the rod is placed in the final notch 126a to permanently fix the adapter 170 to the module 120. Of course, the term "definitive" means definitive to operate the module and not for the entire life of the module, since according to the invention this fastener is removable to allow the replacement of the light source by removing and replacing the adapter.

As can be seen, according to the invention, the support block that comprises the adapter 70, 170, 270 is a radiator whose fins 75, 175, 275 are arranged to dissipate the heat released by the LED 13. is all the more effective as they are oriented upwards.

In all three embodiments, the adapter 70, 170, 270 includes a connector 82, 182, or 282, connected to the LED 13, and the carrier 20, 120, and 220, also includes a connector 82, 182.

As illustrated in FIG. 10, according to the invention, these connectors are arranged one above the other when the adapter 70 is positioned in the support, so that during assembly the simple fact of folding the adapter against the module will plug the connectors into each other.

As illustrated in FIG. 11, the connector 382 of the adapter 70 can comprise connection pins 384, 385, the connector 502 of the support plugging in its pins 504, 404, between those of the connector of the adapter.

As illustrated in FIG. 12, the pins of the connector of the support 20 comprise blades 516 mounted on more rigid portions 514 between which the central pin of the connector of the adapter is plugged, the rigid parts 514 are housed between the walls 484 of the connector of the adapter 70. The rigid parts 514 are connected to the support 20 via a spring 518 to reduce the dimensional tolerances for mounting during the fixing of the adapter 70.

According to one embodiment, the contact surfaces 76 of the adapter

66 and the stand are in direct contact. The optical element having a game along an axis perpendicular to the tangent to these surfaces, or along the vertical axis Z in the illustrated embodiments. Thus, according to this axis the arrangement is done according to the support. This clearance may for example be between 0.1 and 2 mm, preferably between 0.5 and 1 mm, preferably 0.5 mm.

According to an alternative embodiment, the contact surfaces 66 of the support and / or the contact surfaces 76 of the adapter are covered by a compressible and thermally conductive element, in particular a charged silicone, for example a silicone PAD 900. This compressible element can have a thickness of about 229 μιτι. The adapter is in direct contact with the optical element 12, so that the adapter 70, 170, 270 is indexed with respect to the optical element 12 along the vertical axis Z.

It can be seen here that in these three embodiments the contact surfaces 66 and 76 are in direct or indirect thermal contact so that the adapter 70, 170, 270 and said support 20, 120, 220 of the optical element 12 form a single heat sink, the fins being located for some - 75, 23, 24, 25; 175, 123, 124, 125; 275, 223, 224, 225 - on the adapter 70, 170, 270 and for other on the said support 20, 120, 220.

There is thus a radiator for discharging the heat directly from the base of the LED 13, and an extended exchange surface.

Claims

1 - Light source adapter (70; 170; 270), comprising:

at least one light source (13),

a support block (73) to which the light source (13) is directly or indirectly fixed, said support block being a radiator comprising fins (75; 175; 275) and being arranged to dissipate the heat evolved by this light source,

- Complementary fixing means (90; 177; 277) adapted to allow the attachment of the adapter.

2. An adapter (70; 170; 270) according to claim 1, comprising a printed circuit (80) on which is fixed and connected the light source (13). 3- adapter (70) according to one of claims 1 to 2, comprising a metal rod (90) hinged on one side on said adapter (70), said rod further comprising a fixing portion intended to be fixed to a element, such as an optical module, said rod being arranged to allow fixation in compression of the adapter to this element.

4. An adapter (70) according to claim 3, wherein the hinge comprises a through hole, inside which an end of said metal rod (90) is free to rotate. An adapter (70) according to claim 3 or 4, wherein the hinge is arranged on a fin (75) of said adapter (70) or on a projection (22) separate from the fins (75) of the adapter.

6. Adapter (70) according to one of claims 3 to 5, wherein said metal rod (90) comprises a gripping portion (93) in the form of a loop to be grasped to allow the recess of the rod. 7- adapter (70) according to one of claims 3 to 6, wherein said rod is in the form of a closed loop or not, articulated on one side and with a portion (91) adapted to cooperate with a notch of the other. 8- adapter (70; 170; 270) according to one of claims 1 to 7, comprising a connector (82; 182) connected to the light source (13) and adapted to be connected to a power supply source for supplying said light source. 9- Optical module (10; 1 10; 210) for a lighting and / or signaling device for a motor vehicle comprising:

a first optical deflection element (12),

a support (20; 120; 220) of this optical deflection element (12), said first optical deflection element (12) being fixed to said support,

wherein said support (20; 120; 220) comprises adapter fixing means (26; 126; 226);

an adapter (70; 170; 270) according to one of claims 1, 2 or 8 fixed to said support (20; 120; 220) of said optical deflection element through said adapter fixing means (26; 126, 226),

10- optical module (10) according to claim 9, wherein said support comprises a protruding portion (22) claw-shaped accommodated between two fins (75) of the adapter (70). An optical module (210) according to claim 9 or 10, wherein said support comprises a claw-shaped projection (222) and a metal rod (290) for attaching said adapter (270) to said attachment means of adapters (226), said projecting portion (222) comprising the articulation of said metal rod (290).

12- optical module (1 10; 210) according to one of claims 9 to 1 1, wherein a metal rod (190; 290) is articulated at one end (193; 293) to said support (120; 220), and a hooking portion (191; 291) of the rod is hooked to an adapter fixing means (126; 226) carried by said support (120; 220), said rod comprising a plating portion (195; 295) located between the hinged end (193; 293) and said hooking portion (191; 291), the plating portion being in abutment against the adapter (170; 270) so as to press it against said support.

13- optical module (10; 1 10; 210) according to one of claims 8 to 12, wherein the adapter (70; 170; 270) has contact surfaces (76) plated in direct or indirect contact with contact surfaces (66) of the support.

14- optical module (10; 1 10; 210) according to one of claims 8 to 13, comprising a compressible element and thermally conductive, in particular a charged silicone, located between these contact surfaces (76 and 66). 15- optical module (10; 1 10; 210) according to one of claims 8 to 14, wherein these contact surfaces (66 and 76) are in direct or indirect thermal contact so that the adapter (70; 270) and said support (20; 120; 220) of the optical deflection element (12) form a single heat sink.

An optical module (10; 110; 210) according to claim 15, wherein the single heat sink comprises fins located for some (75,23,24,25; 175,123,124,125; 275,223; 224, 225) on the adapter (70; 170; 270) and for other on said carrier (20; 120; 220).

An optical module (10; 110; 210) according to claim 9 or 10, wherein said adapter is an adapter according to any one of claims 3 to 5. 18- Optical module (10; 1 10; 210) according to one of claims 9 to 17, wherein said support (20; 120; 220) comprises:

one day (29) vis-à-vis the optical deflection element (12),

- Guide vanes (23; 123) on both sides of this day (29), in particular parallel to each other, bearing surfaces (66) between this day (29) and these guide vanes (23; 123),

said guide vanes (23; 123) being arranged to allow the guiding of a block of width close to the distance between these guide vanes to position it in contact with these bearing surfaces (66).

19- optical module (10; 1 10; 210) or adapter according to one of the preceding claims wherein the light source (13) is a light emitting diode.