FR3050798A1 - ROTARY LIGHT MODULE - Google Patents

Abstract

A light module (2) for a motor vehicle comprises at least one light source capable of emitting light rays, a support for this source, optical deflection elements (6) arranged so as to deflect the light rays emitted by this source to forming a light beam projected at the output of the light module, and guide elements (14) for guiding the optical deflection element in rotation about an axis of rotation (4), in order to move the projected light beam transversely. According to the invention, the support is formed of two distinct parts fixed one on the other, a first part (28) of the support carrying the light source and the second part (30) of the support carrying at least a part of elements for guiding in rotation (14) the optical deflection elements (6) arranged around the first axis of rotation (4).

Description

The invention relates to the field of lighting and / or signaling, in particular for a motor vehicle. More particularly, the invention relates to a light module for a motor vehicle, and to a lighting and / or signaling device comprising such a light module.

Lighting and / or signaling devices may comprise one or more light modules mounted rotatably about an axis, in particular to respond to problems of adaptive lighting In particular, the document EP 295 74 64 describes a lighting device and or signaling device for a motor vehicle which comprises a housing and a set of at least two light modules, in which at least a portion of each light module is mounted to rotate about an axis under the effect of an actuator to transversely move the corresponding light beam at the output of the light module. An associated control device is able to develop separately for each light module specific lighting control instructions according to the traffic conditions. The aim of the invention is to propose an improvement to lighting and / or signaling devices for a motor vehicle known from the prior art, in particular as regards the guidance in rotation of a light module for a transverse displacement of the beam bright it generates.

In this context, the subject of the invention is a light module, in particular for a motor vehicle, comprising at least one light source capable of emitting light rays, a support carrying said light source, optical deflection elements arranged in such a way as to deviate the light rays emitted by the light source to form a projected light beam at the output of the light module, and guide elements for guiding the optical deflection element in rotation about an axis of rotation, in order to move the beam transversely bright projected.

According to the invention, the support is formed of two distinct parts fixed to one another, a first part of the support carrying the light source and the second part of the support carrying at least a part of the guide elements in rotation of the optical deflection elements.

By transverse displacement of the light beam, it is understood that the general orientation of the projected beam output of the module, that is to say in the direction of the road scene upstream of the vehicle, varies in a plane perpendicular to the axis of rotation of the optical deflection element.

This ensures, in the vicinity of the light source, that the optical deflection elements rotate precisely around the first axis of rotation, in particular thanks to the guide elements.

The optical deflection elements are rotatable under the effect of an actuator, which may include in particular an output shaft extending along the first axis of rotation and carrying the optical deflection elements.

Advantageously, the actuator and the rotational guiding elements are disposed on either side of the optical deflection elements along the first axis of rotation. It is understood that this avoids a cantilever arrangement in which the portion of the optical deflection elements opposite the actuator would tend to shift from the axis of rotation.

The optical deflection elements can follow a rotation path defined by the guide elements which thus allow centering and good focusing of the light source directed towards the optical deflection elements.

In addition, the invention has at least one of the following characteristics, considered alone or in combination: the first part of the support and / or the second part of the support is made of a heat-conducting metal material, in particular aluminum; - The rotational guiding elements consist of a stator secured to the second part of the support and a rotor secured to the optical deflection elements and configured to rotate around the stator; the rotor and / or the stator may be made of a plastic material; the stator has a cylindrical shape with a circular section; the rotor has an annular portion sized to surround said stator; the rotor comprises at least two fixing lugs for the optical deflection elements arranged projecting from said annular portion; preferably, the two fixing lugs are diametrically opposed; Each fixing lug may comprise an axially extending leg, ent the annular guide portion and a finger extending substantially perpendicularly to the free end of said leg; - The fixing lug is secured to the optical deflection elements, including by pegging, screwing or welding; - The rotating guide members may comprise a ball bearing, arranged between the rotor and the stator; the stator is sandwiched between the two parts of the support; - The stator may comprise fastening means common to both parts of the support and the stator, including clamping screws; - The first part of the support has an outer face turned away from the stator and the second part of the support, said light source being carried on said outer face; - At least the stator is drilled axially to allow passage to power cables of the light source; it can further be provided that one and / or the other parts of the support are also pierced; the second part of the support has a cavity for receiving the stator and the first part of the support; the stator and the annular portion of the rotor can be retracted into said cavity; - The second part of the support has a carrier plate of at least one additional light source offset transversely to the first axis of rotation.

The optical deflection elements may consist of a reflector of substantially elliptical shape, the light source being disposed substantially in the vicinity of a first focus of said reflector.

According to one characteristic of the invention, the optical deflection elements can moreover be rotatably mounted around a second axis of rotation substantially perpendicular to a first axis of rotation as just defined to move in a direction of rotation. other direction than the transverse direction described above, for example in a vertical direction, the corresponding light beam at the output of the light module. Preferably, the second axis of rotation is carried by the second part of the support associated with the luminous m odule. The invention also relates to a lighting and / or signaling device comprising at least one light module as just presented above. In particular, this device may comprise at least one plate on which the supports of the light module are mounted, and this plate may be configured to have growth-receiving bearings formed on the pure light module to allow their rotation about the second axis of rotation described. above. The device may comprise in particular a housing defining with a closing window a housing for receiving at least one light module. The light beam projected at the output of the light module is configured to pass through this closing window before being projected onto the road stage upstream of the vehicle. Preferably, this lighting and / or signaling device comprises three light modules according to the invention. Especially in this case, and since there are several light modules arranged in a common light device, the light beams projected by each of the modules are configured to form a global light beam, in particular meeting regulatory standards of lighting and / or signaling of a motor vehicle. Other features and advantages of the present invention will emerge more clearly from the description and the drawings, in which: FIG. 1 is a perspective view of three quarter front of a light module, according to a embodiment of the invention; FIG. 2 is an exploded perspective view of the light module shown in FIG. 1; FIG. 3 is a perspective view from above of the light module shown in FIG. 1; and FIG. 4 is a three-quarter perspective view of a lighting and / or signaling device comprising a set of three light modules according to the embodiment of the invention shown in FIGS. 1 to 3.

In the following description, a longitudinal, vertical and transverse orientation will be adopted in a nonlimiting manner according to the orientation conventionally used in the automobile. In addition, the lower and upper terms must be interpreted when the object is in the normal position of use.

Figures 1 to 3 show a light module 2 movable in rotation about an axis of rotation 4.

This light module 2 comprises elements of optical deflection 6 of rays emitted by a light source 8 carried by a support 10. The optical deflection elements 6 are arranged around the axis of rotation 4 and they are rotated by a actuator 12 about the axis of rotation 4 to transversely move a corresponding light beam at the output of the light module 2.

The optical deflection elements 6 cooperate with the support 10 coming into overlap of the light module 2, in particular by means of rotation guide elements H (notably visible in FIG. 2). It is understood that the support 10 is on the one hand carrier of the light source 8, which emits rays in the direction of the optical deflection elements 6, and on the other hand carries a portion of the rotating guide elements 14 of the optical deflection elements 6 about the axis of rotation 4. The optical deflection elements 6, which will be described in more detail below, are arranged between the guide elements 14 and the actuator 12 relative to their arrangement along the axis of rotation. of the axis of rotation 4.

Control means (here not shown) control the actuator 12. A movement is transmitted by this actuator 12 to an output shaft 16, which transmits to the optical deflection elements 6 the controlled rotational movement about the axis of rotation 4. As shown, the output shaft 16 is secured to the optical deflection elements 6 at a first end 18, here considered to be lower than the orientation defined above.

The optical deflection elements 6 here consist of an elliptical or parabolic reflector, with a reflecting face 20 configured to reflect the light rays emitted by the light source 8, which is substantially disposed in the vicinity of a first focus of the deflection elements optical 6. A light beam is thus generated to form a regulatory beam from the point of view of lighting and / or signaling of a motor vehicle.

Note that without departing from the context of the invention, the optical deflection elements 6 may take different forms as soon as they are rotated by an actuator 12 at a first end relative to the axis of rotation 4 and their arrangement with respect to the light source makes it possible to form a regulatory beam.

In the vicinity of a second end 22 of the optical deflection elements 6, here the upper end designated in the orientation described above, that is to say at the end opposite the first end 18 where extends l The actuator 12 is provided with the rotational guiding elements through which the optical deflection elements 6 cooperate with the support 10.

In particular, in order to allow a portion of these rotating guide elements 14 to be fastened to the optical deflection elements 6, an end 23 is provided at the second end 22 which forms, on the periphery of the reflecting surface 20, a surface support for this part of the guide elements in rotation.

It will be understood that the arrangement of the rotational guiding elements M and the drive means formed by the actuator 12 and the output shaft 16, on either side of the optical deflection elements 6, allow optimal guidance in rotation of the elements. of optical deflection around the axis of rotation.

The rotation guiding elements M and the output shaft 16 make it possible for the optical deflection elements 6 to rotate up to 360 degrees about the substantially vertical axis of rotation 4, without any effort on the actuator 12. , and with great precision in the relative positioning of the optical deflection elements 6 and the light source 8, advantageously centered on the axis of rotation 4,

We will now describe in more detail the support 10 and the guide elements in rotation M, as just presented, in particular with reference to Figure 2 which shows the support 10 in an exploded view.

The support 10 is formed of two distinct and fixed parts between them, and between which are arranged at least in part the rotational guiding elements M which comprise a rotor 24 and a stator 26, integral with the optical deflection elements 6 and 1. other secured to the support 10,

The support 10 comprises a first portion 28 and a second portion 30 which can form heat sinks made of a heat-conducting metal material, in particular aluminum. These two parts of the support 10 are able to carry the rotating guide elements 14 and / or the light source or sources.

The first portion 28 of the support 10 has a substantially cylindrical shape with a defined diameter and a non-zero thickness, its dimensions being defined to allow cooperation and complementarity of shape with a portion of the guide elements 14 and the second portion 30 of the support 10, as described below,

The first portion 28 of the support 10, as shown in Figure 2, has two opposite end faces 32, 34 and a peripheral face 36 axially connecting these two end faces. A first external end face 32 is carrying the light source 8 centered on the axis of rotation 4, this first external face 32 being directed towards the optical deflection elements 6. The light source 8 is here disposed on the first face of a first printed circuit board 38, which is attached to the outer end face 32 of the first portion 28 of the support 10. A second end face 34, called internal, of the first portion 28 of the support 10 is turned towards the second portion 30 of the support 10 (visible in Figure 2). This second internal end face 34 has an imprint 40, sized to be able to retract power cables of the light source without these preventing the stator 26 from being pressed against the inner end face 34 of the first part 28 of the support 10.

The second part 30 of the support 10 overlaps the light module 2, in particular the optical deflection elements 6 and the first part 28 of the support 10. This second part 30 of the support 10 mainly comprises a central portion 42 and a or a plurality of peripheral portions 44 which extend substantially transversally, to said central portion 42.

The central portion 42 has the shape of a bowl having a bottom wall 46 and a peripheral wall 48 which protrudes substantially perpendicularly to the bottom wall all around it. The central portion 42 has substantially a cylindrical shape of circular section. As will be described in more detail below, the second portion 30 is oriented relative to the first portion 28 so that the cavity formed inside the bowl is turned towards the first portion so as to form a housing for this first portion 28 and the guide elements in rotation.

In other words, the central portion 42 consists of a cavity for receiving a portion of the components of the light module 2, in particular a portion of the rotational guiding elements 14 and the first portion 28 of the support 10. dimensions of this receiving cavity will depend on the dimensions of the components it must accommodate.

Moreover, the bottom wall 46 of the central portion 42 is pierced with two through-holes 50 allowing the passage of screwing means, not shown here, for fixing this second portion 30 of the support 10 to at least a portion of the elements. in rotation guide4. It can be provided that the screwing means passing through these through holes 50 also allow the second part 30 to be secured with the first part 28 of the support 10.

The second part 30 of the support 10 has at least one access window 52 inside the housing cavity for the guide elements and the first part 28 of the support 10. These windows allow the passage of power cables for the light sources while allowing to lighten the second part 30 of the support 10.

The peripheral portion takes the form of a plate which extends in a substantially perpendicular extension of the peripheral wall of the central portion 42. At least a portion of this peripheral portion extends towards the front of the vehicle when the light module 2 is put in place in the vehicle. Said plate 44 is substantially plane and perpendicular to the axis of rotation 4 and carries at least one additional light source 54 on its lower face, that is to say the opposite face of the optical deflection elements 6. will understand that the length of the plate 44 will allow the provision of this additional light source so that it is shifted transversely to the axis of rotation. The lower face of the plate 44 can receive a second printed circuit board 56 on which is disposed the additional light source 54.

We will now describe more precisely the rotation guiding elements 14 around the axis of rotation 4 of the light module 2. As previously mentioned, these rotating guiding elements 14 consist of a rotor 24 and a stator 26. , these being arranged between the two parts 28, 30 of the support 10.

The stator 26 is secured to each of the two parts 28, 30 of the support 10 and the rotor 24, arranged to rotate around the stator 26, is integral with the optical deflection elements 6.

The stator 26 has a cylindrical shape with a circular section, comprising two opposite parallel faces, said upper face 58 and lower face, and a lateral face 60 axially connecting the two opposite faces. The stator comprises orifices axially through it from the upper face 58 to the lower face, so that screwing means previously discussed and not shown allow the attachment of the stator on the one hand to the second part 30 of the support 10, by plating the stator at the bottom of the receiving cavity of this second part 30 of the support, and secondly at the first part 28 of the support 10 which is pressed against the underside of the stator.

The stator 26 is thus clamped between the two parts 28, 30 of the support 10.

The stator 26 is pierced at its center to allow the passage of a bundle of cables (not shown in the figures) for connecting the light source 8, this bundle of cables coming from outside the module and passing through the second part of the support. It is understood that it is important that the cables pass through the stator by the center, in order not to hinder the rotation of the rotor 24 around the stator 26 fixed. The wiring harness is connected to the second face of the first printed circuit board 38, after passing through the stator at its center, and along the first portion 28 of the support 10 in the cavity 40, so again not to hinder the rotation of the rotor.

The rotor 24 comprises an annular portion 62 having an inside diameter greater than the outside diameter of the stator 26, so as to surround the stator 26. At least two fastening tabs 64 project from the annular portion 62. shown, the two fastening tabs 64 are diametrically opposed on either side of the annular portion 62. Each fastening tab 64 consists of a leg 66 axially extending the annular portion 62 and a finger 68 extending substantially perpendicularly a free end of said leg 66. The finger 68 comprises a hole or a fastening means 70 configured to cooperate with the edge 23 provided at the upper end 22 of the optical deflection elements 6. It may be provided indifferently a fixing by snap, riveting or by screwing.

We will now describe, in more detail, the arrangement of the rotating guide elements 14 and the support 10 in the light module 2.

As described above, the rotor 24 and the stator 26 are arranged at least partly between the first portion 28 and the second portion 30 of the support 10, in particular by being housed at least partly in the receiving cavity formed in the central portion. 42 of the second portion 30 of the support 10, this cavity being dimensioned to receive the stator 26, a portion of the rotor 24 and a portion of the first portion 28 of the support 10, these components being stacked on each other. The stacking of these different components requires a complementarity of form between these components. The diameter of the stator 26 and the thickness of the annular portion 62 of the rotor 24 are defined with respect to the dimensions of the receiving cavity. The stator 26 must be able to lodge in the cavity and a sufficient free space must be left in the receiving cavity between the peripheral wall of the central portion 42 defining this cavity and the lateral face 60 of the stator 26, so that the annular portion 62 of the rotor 24 can be inserted between the peripheral wall of the central portion and the side face 60 of the stator 26 and that this annular portion can rotate freely around the stator 26 inside the cavity.

In an assembled position of the various components, the rotor 24 is arranged around the stator, in the region of its annular portion 62, and it extends along the first portion 28 of the support 10, in the zone of its two legs. fixing 64 arranged diametrically opposite on either side of this first portion 28. The rotor 24 is secured to the optical deflection elements 6 with the two fastening lugs 64. The rotor 24 extends axially along the peripheral face of the first portion 28 of the support 10 to the optical deflection elements 6, so that when the assembly is fixed, the first portion 28 of the support 10 is disposed within the rotor.

It is understood that, when the assembly is mounted, the rotor 24 and the stator 26 consist of two complementary shapes allowing the rotation of the rotor 24 and associated optical deflection elements 6 around the fixed stator 26 on the support 10. In a variant embodiment not shown, the rotor 24 and the deflection elements 6 can form a single piece, monobloc in that the separation of these two parts leads to the destruction of one or the other, so that it avoids the games mounting between the rotor 24 and the optical deflection elements 6 which appear when these two parts are made separately.

It has been stated previously that the two parts of the support 10 are advantageously made so as to form heat sinks and it will be possible for this purpose to provide them in a metal material. The rotor 24 and / or the stator 26 may be made of a plastic material, and for example polyoxymethylene (POM) or any other material with a low coefficient of friction that allows easy rotation of the rotor around the stator.

According to another variant embodiment, also not shown, the rotation guiding elements 14 may comprise a bearing, in particular a ball bearing, arranged between the stator 26 and the annular portion 62 of the rotor 24, to facilitate the rotation of the rotor with respect to the stator and improve the rotational guidance function.

The different light sources 8, 54 are semiconductor sources, and preferably of the light-emitting diode type.

The light source 8 is substantially aligned with the axis of rotation 4. The expression "substantially aligned" is understood to mean that the distance between the geometric center of the light source such as a light emitting diode and the axis of rotation 4 of the light module 2 is not greater than the dimensions of the light emitting diode. As previously described, the light source 8 is fixed and positioned on the first outer face 32 of the first portion 28 of the support 10, via a first printed circuit board 38.

The light sources are fixed in the light module 2 and their light rays emitted are oriented opposite the second portion 30 of the support 10. These light sources 8, 54 may have in the light module 2 lighting functions and / or separate signaling according to their locations and the control instructions according to the conditions of the road. In particular, the light source 8 is arranged to emit light rays towards the reflecting face 20 of the optical deflection elements 6, while the additional light source or sources are arranged to emit inside a translucent screen 71 participating to aesthetic functions.

The various parts of the support and the rotor-stator assembly can be mounted, for example, by turning over the second part of the support and disposing successively in the receiving cavity the stator, which is pressed against the bottom wall 46 of this cavity. receiving, the rotor, which is just disposed around the stator, then the first portion 28 of the support that is slid between the brackets 64 to press against the stator 26. When this stack is performed, it assembles the two parts of the support and the stator by clamping screws which pass through each of these components, the rotor being blocked axially, in the direction of the stack, that is to say the screwing, between the bottom wall 46 of the cavity and the inner end face 34 of the first portion 28 of the support, it being understood that the diameter of the annular portion 62 of the rotor is such that it can surround the stator, and possibly an associated bearing, and t el that this annular portion is in abutment against the inner end face 34 of the first portion 28 of the support. It will be understood that the use of a material with a low coefficient of friction makes it possible not to be hindered in the relative rotation of the rotor with respect to the first part of the support, despite this stop. One could alternatively provide that the stator has a flange extending the end of the stator bearing against the inner end face 36 of the first part of the support, and that the rotor bears against this flange rather than on the support , in order to limit friction.

In the illustrated embodiment, it can be provided that the second portion 30 of the support 10 may have protrusions 72, in particular protruding from the central portion 42, diametrically opposed, and aligned to form a second axis of rotation 74 (visible on Figure 4) adapted to cooperate with bearings (visible in Figure 4) which will be described below. The protrusions 72 may consist of cylindrical pins.

It will be understood that these protrusions are here produced to form an axis of rotation distinct from the first axis of rotation about which the optical deflection elements are configured to rotate, via the actuator 12 and the rotational guiding elements 14. The second axis of rotation rotation 74 allows the light module 2 to rotate and ensure vertical movement of the light beam at the output of the light module 2.

Of course, the optimal achievement of the rotational guidance function around the first axis of rotation by the guide elements 14 as described above does not require the presence of these excrescences and this second axis of rotation. It is understood that the presence of these excrescences is optional. However, it is interesting to note that the implementation of this second rotational movement is facilitated by the very precise rotation guidance around the first axis, since the rotation around the second axis would be difficult to implement if a door effect to false occurred when performing rotation around the first axis.

The light module according to the invention, as just described, participates in the formation of a lighting and / or signaling device arranged in a housing (not shown) of a motor vehicle headlamp closed by a projection glass, so as to define a housing of the module or modules according to the invention. It will be understood that a plurality of light modules may be arranged as just described to form a lighting and / or signaling device. Note that it is advantageous that the two projectors, left and right, comprises an equivalent device, with an equivalent number of light modules.

According to lighting control instructions of the light sources and according to instructions for rotating the light module 2, the invention allows the realization of different combinations of functions and to widen the lighting zone. A transverse pivoting of at least one light module 2 allows illumination on the left or the right of the vehicle according to the traffic and road conditions.

The device may comprise for this purpose means for detecting a driving situation, means for calculating an operation control instruction of the light module or modules 2 as a function of the information sent by these detection means. These control instructions allow mobility of at least one module in rotation horizontally and / or vertically so that the light beam at the output of the light module 2 that it generates can be oriented so as to cover a large lighting zone and / or signaling while respecting congestion constraints of the light device.

FIG. 4 represents a lighting and / or signaling device comprising three light modules 2 movable in rotation so as to move transversely the portion that it generates from the overall beam emitted by the lighting and / or signaling device.

Each light module 2 is associated with a plate 76, or a platinum portion 76, which overlaps the second portion 30 of the support 10. The plate 76 is fixed to the housing and is configured to position the second portion 30 of the support 10 relative to the projector.

As shown in Figure 4, the device comprises a single plate which covers all the light modules 2 included in the housing, but it will be understood that each light module 2 can be associated with an individual plate, independent of the other plates.

Each of the three light modules 2 is rotatable about an axis of rotation 4 which is its own, and in at least one of these light modules, this rotation is facilitated by guiding elements 14 as they come from to be described. An axis of rotation 4 has been shown in FIG. 4 for one of the light modules 2, and advantageously, the axis of rotation specific to each light module 2 is substantially parallel to the axis of rotation of the neighboring light modules 2.

In the illustrated example of application, the plate 76 participates in the rotation of the light module or around the second axis of rotation 74 which is specific to them. For this purpose, the plate 76 is carrier of at least two receiving lugs 77, made of material with or reported and made integral with the plate. For a given light module, two receiving tabs 77 are arranged on either side of the module to form bearing receiving elements protruding from the support 10, including the protrusion 72, as described above. The two receiving tabs 77 each have a hook shape defining a groove 78 in which one of the protrusions 72, of said second support portion 10 is inserted. The grooves 78 are arranged coaxially, and the arrangement of the tabs receiver 77 and excrescences 72 defines the second axis of rotation 74 for the light module 2, which in this embodiment is rotatable along two axes of rotations 4 and 74, distinct and non-parallel, and preferably perpendicular to each other.

In a given configuration, the first axis of rotation 4 is substantially vertical and allows the horizontal rotation (in the left-right and right-left direction) of the light beam at the output of the corresponding light module 2, within the light device. The second axis of rotation 74 is substantially horizontal and allows the vertical displacement (in the up-down and up-down direction) of the light beam at the output of corresponding light module 2, within the light device.

As can be seen in FIG. 4, the light module 2 according to the invention may comprise a transparent screen 71 placed on the output path of the light beam of the light module 2. This screen 71 is arranged to receive the rays emitted by the additional light source (s) 54. The screen 71 is thus intended to produce a stylistic effect when the additional light sources 54 are lit, without hindering the formation of a regulatory beam when the main light source 8 is on. It will be understood that the presence of a screen 71 has only an additional function here and that the light module could, as illustrated in FIGS. 1 to 3, not have such a screen facing the optical deflection elements. 6.

The light module 2 further comprises a control device able to formulate, on the basis of information received from vehicle state sensors, control instructions to be sent to the actuator 12 and to actuating means ( not shown) responsible for the rotational movement about the second axis of rotation 74. The instructions consist in controlling the angular position of the light module 2 around the first axis of rotation 4 and possibly around the second axis of rotation 74.

The lighting function can then be directional, thanks to the actuator 12 and to the actuating means specific to the rotational movement around the second axis of rotation 74 of the light module 2. The rotational movements around the first axis of rotation 4 and around the second axis of rotation 74 can be simultaneous and calibrated between the two axes or completely independent.

The simultaneous rotation is possible in particular due to the rotational drive of the actuator 12 with the light module 2 when it is driven in rotation about the second axis of rotation 74. It will be understood that when the light module 2 is rotated around the second axis of rotation 74, the rotation along the first axis of rotation 4 is possible in particular thanks to a configuration provided for this purpose.

We will now describe the operation of the light device, and in particular a first mode in which the light beam at the output of light module 2 is shifted transversely, and a second mode in which the light beam at the output of light module is shifted vertically. These two modes of operation can operate simultaneously or alternately.

The first mode of operation consists in that the actuator 12 transmits to the output shaft 16 a rotational movement, said output shaft 16 rotates the optical deflection elements 6 around the axis of rotation 4 the rotation being guided along a path defined by the configuration of the rotating guide elements 14. The optical deflection elements 6 rotate around the axis of rotation 4 by an angle defined by the control instructions sent to the actuator, while the support 10 and the light sources that it carries remain fixed. An angled support 80 makes the connection between the support 10 of the light source and the actuator 12, being on the one hand integral with the second part 30 of the support and on the other hand secured to a fixing support 82 of the actuator 12, by means of fixing means, here a screwing drum arranged between the bracket bracket and the mounting bracket, and traversed by a non-visible clamping screw which fixes the bracket bracket to the mounting bracket. This square support remains fixed during the rotation of the optical deflection elements around the axis of rotation 4. This rotation of the optical deflection elements around the axis of rotation 4 generates a displacement of the rays emitted by the light source 8 of so that we can generate a transverse movement of the beam output of the lighting and / or signaling device.

The second mode of operation consists in that actuating means, not shown in FIG. 4, are able to push on the bracket 80 at its lower part, opposite the support 10. This thrust on the square support 80 causes a pivoting of the entire module about the second axis of rotation 74. The protrusions 72 projecting from the second portion 30 of the support 10 rotate in the fixed bearings 77 carried by the plate 76. The lower part of the bracket bracket rotates , driving in its rotation about the second axis 74 the attachment support 82 of the actuator 12, the actuator 12, the output shaft 16, the optical deflection elements 6, the rotating guide elements 14 and the different parts of the support 10. It is understood that when the bracket bracket rotates, the second portion 30 of the support 10 is also rotated about the second axis of rotation, resulting in the same rotation. the rotation guiding elements 14 and the first part 28 of the support, then the optical deflection elements and the actuator. All these components are thus taken as a single unit secured in rotation about the second axis of rotation 74 to achieve a vertical displacement of the light beam at the output of the light module 2.

The foregoing description clearly explains how the invention makes it possible to achieve the objectives it has set for itself, and in particular to propose a lighting and / or mobile lighting module rotatable according to at least one axis of rotation thanks to the actuator 12, and without constraint by means of guide elements 14. According to the invention, the location of the guide elements 14 at one end of the optical deflection elements opposite the output shaft 16 and the actuator 12 allows a maintenance in the upper part of the optical deflection elements 6 during rotation and to better adjust the position of the light source at the focus of the optical deflection elements.

The particular configuration of the rotating guide elements 14, namely a stack of the different components of these guide elements with different parts of the support 10 carrying the light source can advantageously provide a compact assembly and with minimal clearance between the different parts of the light module 2, thus causing less vibration and premature wear of the various components. The reliability of the rotational movement in the guide path around the axis of rotation 4 of the light module 2 is then increased.

Claims (23)

A light module (2) for a motor vehicle comprising at least - a light source (8) capable of emitting light rays, - a support (10) carrying said light source (8), - optical deflection elements ( 6) arranged to deflect the light rays emitted by the light source to form a projected light beam at the output of the light module; - guiding elements (14) for rotating the optical deflection element about a axis of rotation (4), in order to transversely move the projected light beam, characterized in that the support (10) is formed of two distinct parts fixed to one another, a first part (28) of the support (10 ) carrying the light source (8) and the second portion (30) of the support (10) carrying at least a portion of rotational guiding elements (14) optical deflection elements (6) arranged around the first axis of rotation (4). 2. Light module (2) according to claim 1, characterized in that the first portion (28) of the support (10) and / or the second portion (30) of the support (10) are made of a heat conducting metal material . 3. Light module (2) according to claim 1 or 2, characterized in that the rotational guiding elements (14) consist of a stator (26) integral with the second part (30) of the support (10) and in one rotor (24) integral with the optical deflection elements (6) and configured to rotate around the stator (26). 4. Light module (2) according to the preceding claim, characterized in that the rotor (24) and / or the stator (26) are made of a plastic material. 5. Light module (2) according to one of claims 3 or 4, characterized in that the stator (26) has a cylindrical shape with circular section, the rotor (24) having an annular portion (62) sized to surround said stator (26). 6. Light module (2) according to the preceding claim, characterized in that the rotor (24) comprises at least two fastening tabs (64) to the optical deflection elements (6) disposed projecting from said annular portion (62). 7. Light module (2) according to the preceding claim, characterized in that the rotor (24) has two fixing lugs (64) diametrically opposed. 8. Light module (2) according to one of claims 6 or 7, characterized in that each bracket (64) comprises a leg (66) axially extending the annular portion (62) for guiding and a finger (68). extending substantially perpendicularly a free end of said leg (66). 9. Light module (2) according to one of claims 6 to 8, characterized in that the fastening lug (64) is secured to the optical deflection elements (6), in particular by pegging, screwing or welding. 10. Light module (2) according to one of claims 3 to 9, characterized in that the stator (26) is sandwiched between the two parts of the support (10). 11. Light module (2) according to the preceding claim, characterized in that it comprises fastening means common to both parts of the support (10) and the stator (26). 12. Light module (2) according to one of claims 3 to 11, characterized in that the first portion (28) of the support (10) has an outer face (32) facing away from the stator (26) and the second portion (30) of the support (10), said light source (8) being carried on said outer face. 13. Light module (2) according to one of claims 3 to 12, characterized in that at least the stator (26) is pierced axially to allow passage to the power cables of the light source (8). . 14. Module light (2) according to one of claims 3 to 13, when combined with at least claim 5, characterized in that the second portion (30) of the support (10) has a receiving cavity of the stator (26) and the first portion (28) of the support (10), said stator (26) and the annular portion (62) of the rotor (24) being retracted into said cavity. 15. Light module (2) according to one of the preceding claims, characterized in that the second portion (30) of the support (10) has a plate (44) carrying at least one additional light source (54) offset transversely to said axis of rotation (4). 16. Module light (2) according to one of the preceding claims, characterized in that said optical deflection elements (6) are rotatable under the effect of an actuator (12). 17. Light module (2) according to the preceding claim, characterized in that the actuator (12) comprises an output shaft (16) extending along the axis of rotation (4) and carrying the deflection elements. optical (6). 18. Light module (2) according to the preceding claim, characterized in that the output shaft (16) and the guide elements (14) in rotation are arranged on either side of the optical deflection elements (6). along the axis of rotation (4). 19. Light module (2) according to one of the preceding claims, characterized in that the optical deflection elements (6) consist of a substantially elliptical shaped reflector, the light source (8) being disposed substantially in the vicinity of a first focus of said reflector. 20. Light module (2) according to one of the preceding claims, characterized in that the deflection elements (6) are further mounted rotatable about a second axis of rotation (74) separate from the axis of rotation. rotation (4). 21. Light module (2) according to the preceding claim, characterized in that said second axis of rotation (74) of rotation is defined by protuberances (72) carried by the second portion (30) of the support (10). 22. Lighting device, including lighting and / or signaling comprising at least one light module (2) according to one of the preceding claims. 23. Lighting device according to the preceding claim, characterized in that it comprises a housing defining with a closing window a receiving housing of at least one light module.