FR3166830A1 - VEHICLE LIGHTING ASSEMBLY COMPRISING AN LED LIGHTING MODULE AND ITS ASSEMBLY METHOD - Google Patents

Abstract

The invention relates to a vehicle lighting assembly (10), comprising a glazing unit (1) and an LED lighting module having a base (3), fixed to an inner face (11a) of the glazing unit (1), and arranged to support a removable lighting element (2) comprising light-emitting diodes (22), and comprising an elastic return means (36) arranged to hold, by clipping, a lighting element (2) in a service position, supported by the base, near the inner face (11a), at a predetermined distance from the inner face (11a) of the glazing unit (1). It also relates to a vehicle equipped with at least one such lighting assembly (10), and a method for reversibly assembling such a lighting assembly (10), and in particular the lighting element (2) relative to the base (3). Abstract figure: [Fig. 8]

Description

VEHICLE LIGHTING ASSEMBLY INCLUDING AN LED LIGHTING MODULE AND ITS ASSEMBLY METHOD

The invention relates to a lighting assembly for a vehicle, in particular a motor vehicle, comprising a glazing having an outer face intended to be oriented towards an outer space, an edge, and an inner face intended to be oriented towards an inner space, said lighting assembly comprising at least one LED lighting module having on the one hand a base and on the other hand at least one lighting part comprising at least one light-emitting diode.

The invention also relates to a motor vehicle comprising at least one such lighting system.

The invention also relates to a method of assembling such a lighting system for a vehicle.

The invention relates to light-emitting diode modules, hereinafter referred to as "LEDs" (from the English "light emitting diode"), for glazing, in particular for motor vehicles.

It is known from prior art to have glazing incorporating one or more light-emitting diodes. Document WO 2018/178591 discloses a motor vehicle lighting assembly comprising a light-emitting diode module and laminated glazing, one inner sheet of which has a through-hole, the module having an illuminating part arranged in this opening.

However, the module's mounting can become unreliable, and its positioning relative to the center of the inner glass pane's thickness can vary. Even a slight variation in this positioning can lead to a significant loss of the amount of light ultimately transmitted through the inner glass pane. This can result in a deviation of the module's light-emitting element from its nominal position relative to the inner glass pane.

Currently, several LED module mounting systems for illuminated windows, known as "lighting" in English, exist, notably those documented in WO2022/229542A1. However, these systems require tools and complex assembly/disassembly of the LED modules and surrounding components on the vehicle. Constraints related to limited space must be considered, as well as the ease of assembly and disassembly during LED module replacement, particularly for after-sales service.

The aim of the invention is to overcome the disadvantages of the prior art by offering a light-emitting diode module that is simple to assemble and disassemble, while being extremely reliable over time and in the use of the vehicle, as well as a method of assembling such a module with glazing, which is simplified and more reliable than in the prior art.

The present invention is thus based on a solution in which the light-emitting diode module is permanently under the effect of a clipping force in order to ensure that an illuminating part (light-emitting part) of this module is permanently correctly positioned with respect to the inner face of the glazing.

To achieve this objective, the invention proposes a lighting assembly for a vehicle, in particular a motor vehicle, comprising a glazing having an outer face intended to be oriented towards an outer space, an edge, and an inner face intended to be oriented towards an inner space, said lighting assembly comprising at least one LED lighting module having on the one hand a base and on the other hand at least one illuminating part comprising at least one light-emitting diode.

According to the invention, each base is either arranged to be fixed to the inner face of the interior space or incorporated into the glazing, with the base projecting from the interior space. Each base comprises at least one bearing surface for receiving at least one removable lighting element and includes elastic return means arranged to hold the lighting element in a service position by clipping it onto the at least one bearing surface near the inner face of the glazing, at a predetermined distance from the inner face of the glazing. The elastic return means consist of at least two support tabs, each support tab being connected to the base at one end and extending substantially towards the center of the glazing, to allow at least one lighting element to be inserted between the support tabs and the base in a movement generally directed from the center of the glazing towards an edge of the glazing.

Advantageously, the said elastic return means consist solely of support tabs linked to said base at a connecting end and extending substantially towards the center of said glazing, in order to allow at least one of said illuminating parts to be introduced between said support tabs and said base in a movement generally oriented from the center of said glazing towards an edge of said glazing.

Advantageously, the support tabs have a certain degree of flexibility, allowing them to deform under the effect of the insertion of the lighting element between them and the base. They may have a corrugated shape, with a free end located not in contact with, but at a distance from, the lighting element.

Thus, the illuminating part of the module is correctly positioned relative to the inner face of the glazing and held securely in that position. Thanks to the support tabs, assembly (or disassembly) is carried out from the side; assembly and disassembly are tool-free; in the prior art, the available space was not taken into account, whereas here the invention requires very little space; furthermore, for a particular "rooftop" configuration (glazing in the vehicle's roof), assembly (or disassembly) is carried out from the center of the glazing, which is just one application among many.

Advantageously, said illuminating part is arranged to be inserted between a first spar of said base and each of said elastic return means of said base, or to be extracted from said base between said first spar and each of said elastic return means of said base, obliquely with respect to a plane tangent locally to said inner face of said glazing at the level of said base.

The insertion or extraction maneuver is therefore easy, and follows a single path.

Advantageously, said first spar of said base comprises a first bearing surface arranged to cooperate in support with a first complementary bearing surface comprising said lighting part in said service position in which said lighting part is clipped onto said base, and said base comprises a second spar comprising a second bearing surface arranged to cooperate in support with a second complementary bearing surface comprising said lighting part in said service position.

A unique relative positioning of the illuminating part in relation to the base is thus ensured, in the service position.

Advantageously, each of said elastic return means of said base has an elastic stroke allowing the insertion of said lighting part in support on said first spar and on said second spar.

The illuminating part can thus assume a stable service position.

Advantageously, said second longitudinal member or elastic return means includes at least a second front stop bearing surface arranged to constitute a front stop of a second front surface comprising said lighting part, when said lighting part is inserted.

This stable service position is therefore a fixed position.

Advantageously, said first longitudinal member includes at least a first front stop bearing surface arranged to constitute a front stop of a first front surface comprising said lighting part, to oppose the extraction of said lighting part in the absence of any manipulation of said at least an elastic return means.

The lighting part is thus kept locked in its service position.

Advantageously, said illuminating part includes at least one operating surface arranged to be operated by a tool or a user to exert on said illuminating part a force tending to move it away from said glazing and to elastically deform said elastic return means to allow the release of said first front surface from said first front stop support surface, and to allow an angular movement of said illuminating part with respect to said plane tangent locally to said inner face of said glazing at the level of said base.

Thus, dismantling the lighting part from the base and the glazing is only possible with the application of a directed force, applied to a particular surface.

Advantageously, said lighting part includes, in the vicinity of said second front surface, at least one elastic thrust means, which tends to oppose the introduction of said lighting part against the second front stop support surface, and which is arranged to, in the absence of external force, extract said lighting part from said base when said first front surface is clear of said first front stop support surface.

Thus, the locking position is maintained with a compensation of the play by this means of elastic push, and the extraction of the illuminating part from the base and the glazing is facilitated, as soon as the unlocking is carried out by pressing on the operating surface.

In a first alternative, the said base is held onto the said glazing by means of adhesive.

The base is therefore versatile and adaptable to different types of glazing.

In a second alternative, the base is overmolded onto the glazing.

The connection between the glazing and the base is therefore very close, and provides great resistance to this lighting assembly.

Advantageously, said base forms a frame comprising longitudinal members and ribs, which is arranged to completely surround said lighting part in said service position, and to constitute means of blocking light leakage into the interior of the vehicle.

Such a frame is particularly rigid, and makes it easy to achieve optical sealing when the LEDs are switched on.

More specifically, said glazing is laminated glazing comprising an inner sheet of glass, an outer sheet of glass, and at least one interlayer sheet of plastic material situated between said inner sheet of glass and said outer sheet of glass.

The invention is therefore well suited for use on a motor vehicle.

Advantageously, each said illuminating part of said at least one LED lighting module includes electrical connection means for its connection by plugging into the power supply and control means included in said vehicle.

This lighting section is therefore removable, not only mechanically, but also electrically.

The invention also relates to a motor vehicle comprising at least one such lighting system.

The invention also relates to a method of assembling such a lighting system for a vehicle.

According to the invention, this method comprises a first step of preparing said glazing: either overmolding said base onto said glazing, or applying at least one adhesive material to said base and/or to said inner face of said glazing; in the alternative of applying adhesive material, a second step of depositing said base onto said inner face; then a sequence of reversible assembly steps comprising a third step of preparing said illuminating part by fixing or gluing at least one light-emitting diode, and associated electrical connection means, onto a second complementary support surface comprising said illuminating part and which is intended to face said inner face of said glazing; a fourth step of obliquely presenting at least one said illuminating part between, on the one hand, a first spar comprising said base, and on the other hand, at least one said elastic return means of said base; a fifth step of butting each said illuminating part against a second spar comprising said base; a sixth step of placing each said lighting part on said first longitudinal member and on said second longitudinal member, in a service position in which said lighting part is held in support on said base parallel to said inner face of said glazing under the force exerted by the clipping of said elastic return means, at a predetermined distance from said inner face of said glazing; a seventh step of connecting said electrical connection means to power supply and control means included in said vehicle.

This process therefore involves, after a permanent fixing of the base to the glazing, a sequence of reversible operations allowing the assembly or extraction of the illuminating part.

Advantageously, said illuminating part includes at least one elastic thrust means, and said fifth stop step is accompanied by a compression of said at least one elastic thrust means.

This way, the gaps are corrected when the lighting part is inserted.

Advantageously, a preliminary marking step of said inner face of said glazing is carried out before said first preparation step of said glazing.

Such marking is therefore easier to carry out than once the base is in place.

Advantageously, the process includes, after said seventh connection step, a reversible dismantling sequence comprising an eighth dismantling step of disconnecting said electrical connection means from the power supply and control means, and a ninth dismantling step of operating each said lighting part by pressure by a tool or by a user on at least one operating surface, which each said lighting part comprises, against said elastic return means, to allow the oblique extraction of said lighting part relative to said base, under the action of extraction push of at least one elastic push means which the lighting part comprises.

Electrical and mechanical dismantling are therefore extremely easy, without damaging the base or the glazing.

• FIG. 1illustre schématiquement et en perspective, une base, agencée pour être fixée sur un vitrage, et que comporte un ensemble d’éclairage pour véhicule selon l’invention ; sa forme non limitative est celle d’un cadre avec deux longerons parallèles maintenus par des nervures, l’un des longerons portant des moyens de rappel élastique, ici au nombre de deux, conçus pour exercer un effort d’appui par clippage sur une partie éclairante amovible, non représentée ici, insérée dans cette base ;
• FIG. 2illustre schématiquement et en coupe transversale passant par un moyen de rappel élastique, perpendiculaire aux longerons et parallèle aux nervures de la base deFIG. 1, cette même base fixée sur la face intérieure d’un vitrage, ici par des moyens de collage sur chacun des longerons de la base ;
• FIG. 3illustre schématiquement et en perspective montrant son côté destiné à faire face à la face intérieure du vitrage, une partie éclairante amovible portant une pluralité de diodes électroluminescentes dites LEDs, cette partie éclairante amovible est notamment en forme de plaque et opaque ; en haut et à droite de la figure une surface frontale prévue pour venir en butée contre une surface de la base est interrompue par deux moyens de poussée élastique sous forme de lames-ressort obliques, pouvant chacune être comprimée dans un logement adjacent ; en bas et à gauche de la figure une surface de manœuvre permet à un manipulateur ou à un opérateur de manœuvrer cette partie éclairante amovible pour son insertion dans la base, ou pour son extraction de la base ;
• FIG. 4illustre schématiquement la partie éclairante amovible deFIG. 3en perspective montrant son côté opposé à celui deFIG. 3, on distingue deux logements avec des surfaces d’appui sensiblement plates destinées à coopérer avec les moyens de rappel élastique de clippage deFIG. 1, ces deux surfaces étant ici entourées d’une pluralité d’alvéoles d’allègement et de rigidification ;
• FIG. 5illustre schématiquement, de façon similaire àFIG. 2, une première alternative où la base est collée sur la face intérieure du vitrage, sur chacun des longerons de la base ;
• FIG. 6illustre schématiquement, de façon similaire àFIG. 5, une deuxième alternative où la base est surmoulée avec le vitrage, lors de l’encapsulation sur le verre, et reste saillante de la face intérieure du vitrage, portant chacun des longerons de la base ;
• FIG. 7illustre schématiquement, de façon similaire àFIG. 2, une opération de présentation oblique de la partie éclairante entre un premier longeron de la base, et les moyens de rappel élastique de clippage de la base ;
• FIG. 8illustre schématiquement, de façon similaire àFIG. 7, l’état final après une opération d’introduction complète de la partie éclairante dans la base selonFIG. 2, avec son basculement parallèlement à la face intérieure du vitrage, et sa mise en butée sur un deuxième longeron de la base, à gauche de la figure, en comprimant les lames-ressort obliques deFIG. 3etFIG. 4dans leur logement, et en bloquant contre l’arête du premier longeron de la base deux surfaces d’appui de butée formant un dièdre, en partie droite de la figure, cette mise en position permettant le clippage de la partie éclairante sur la base dans une position géométrique très précise ; cet état final constitue la position de service de la partie éclairante ;
• FIG. 9illustre schématiquement, de façon similaire àFIG. 8, l’état final après une opération d’introduction complète de la partie éclairante dans la base selonFIG. 5;
• FIG. 10illustre schématiquement et en perspective du même côté queFIG. 4, l’ensemble d’éclairage selon l’invention, avec le vitrage, la base selonFIG. 2, et la partie éclairante amovible selonFIG. 4, immobilisée dans sa position de service par le clippage des moyens de rappel élastique de la base sur les surfaces d’appui sensiblement plates de la partie éclairante amovible, dont on voit à droite de la figure des moyens de connexion électrique, comportant un faisceau de câbles mobile et un connecteur mobile prêt pour son raccordement par enfichage à des moyens d’alimentation et de commande que comporte le véhicule, comportant également un connecteur fixe et un faisceau de câbles fixe, en partie gauche de la figure ;
• FIG. 11illustre schématiquement et en perspective de façon similaire àFIG. 10, le même ensemble d’éclairage après la déconnexion entre le connecteur mobile et le connecteur fixe ;
• FIG. 12illustre schématiquement et en coupe transversale similaire àFIG. 8, l’application d’un effort d’appui sur une surface de manœuvre de la partie éclairante, à l’encontre des moyens de rappel élastique, pour autoriser l’extraction oblique de la partie éclairante par rapport à la base ;
• FIG. 13illustre schématiquement et en perspective de façon similaire àFIG. 11, le même ensemble d’éclairage après sa libération selonFIG. 12, l’effort de rappel élastique exercé par la détente des lames-ressort deFIG. 3etFIG. 4hors de leur logement, pour pousser obliquement la partie éclairante par rapport à la base et ainsi l’extraire complètement ;
• FIG. 14illustre schématiquement et en coupe transversale, le cas particulier d’un vitrage en verre feuilleté ;
• FIG. 15illustre schématiquement et en élévation, un véhicule comportant un ensemble d’éclairage selon l’invention ;
• FIG. 16illustre sous-forme d’un schéma-blocs, des étapes d’un procédé d’assemblage d’un tel ensemble d’éclairage, comportant une séquence réversible de montage en trait plein, suivie d’une séquence de démontage en trait interrompu.

The invention will be further detailed by describing non-limiting embodiments, and based on the accompanying figures illustrating variants of the invention, in which:

• FIG. 1 illustrates schematically and in perspective, a base, arranged to be fixed on a glazing, and which includes a vehicle lighting assembly according to the invention; its non-limiting form is that of a frame with two parallel longitudinal members held by ribs, one of the longitudinal members carrying elastic return means, here two in number, designed to exert a support force by clipping on a removable lighting part, not shown here, inserted in this base;
• FIG. 2 schematically illustrates, in cross-section, passing through an elastic return means, perpendicular to the stringers and parallel to the ribs of the base of FIG. 1 , this same base fixed on the inner face of a glazing, here by means of gluing on each of the spars of the base;
• FIG. 3 illustrates schematically and in perspective, showing its side intended to face the inner face of the glazing, a removable lighting part carrying a plurality of light-emitting diodes called LEDs, this removable lighting part is notably in the shape of a plate and opaque; at the top right of the figure, a front surface intended to come against a surface of the base is interrupted by two elastic thrust means in the form of oblique leaf springs, each of which can be compressed in an adjacent housing; at the bottom left of the figure, a maneuvering surface allows a manipulator or an operator to maneuver this removable lighting part for its insertion into the base, or for its extraction from the base;
• FIG. 4 schematically illustrates the removable lighting part of FIG. 3 in perspective showing its opposite side to that of FIG. 3 We can distinguish two housings with substantially flat bearing surfaces designed to cooperate with the elastic clipping return means of FIG. 1 , these two surfaces being here surrounded by a plurality of lightening and stiffening cells;
• FIG. 5 illustrates schematically, in a similar way to FIG. 2 , a first alternative where the base is glued to the inner face of the glazing, on each of the base's stringers;
• FIG. 6 illustrates schematically, in a similar way to FIG. 5 , a second alternative where the base is overmolded with the glazing, during encapsulation onto the glass, and remains protruding from the inner face of the glazing, supporting each of the base's stringers;
• FIG. 7 illustrates schematically, in a similar way to FIG. 2 , an operation of oblique presentation of the illuminating part between a first spar of the base, and the elastic return means of clipping the base;
• FIG. 8 illustrates schematically, in a similar way to FIG. 7 , the final state after a complete insertion operation of the illuminating part into the base according to FIG. 2 , with its tilting parallel to the inner face of the glazing, and its abutment against a second base rail, on the left of the figure, compressing the oblique leaf springs of FIG. 3 And FIG. 4 in their housing, and by blocking against the edge of the first spar of the base two buttress support surfaces forming a dihedral, in the right part of the figure, this positioning allows the illuminating part to be clipped onto the base in a very precise geometric position; this final state constitutes the service position of the illuminating part;
• FIG. 9 illustrates schematically, in a similar way to FIG. 8 , the final state after a complete insertion operation of the illuminating part into the base according to FIG. 5 ;
• FIG. 10 illustrates schematically and in perspective from the same side as FIG. 4 , the lighting assembly according to the invention, with the glazing, the base according to FIG. 2 , and the removable lighting part according to FIG. 4 immobilized in its service position by clipping the elastic return means of the base onto the substantially flat support surfaces of the removable lighting part, of which electrical connection means are seen on the right of the figure, comprising a mobile cable bundle and a mobile connector ready for its connection by plugging into the power supply and control means included in the vehicle, also comprising a fixed connector and a fixed cable bundle, in the left part of the figure;
• FIG. 11 illustrates schematically and in perspective in a similar way to FIG. 10 , the same lighting setup after disconnection between the mobile connector and the fixed connector;
• FIG. 12 illustrates schematically and in cross-section similar to FIG. 8 , the application of a bearing force on a maneuvering surface of the illuminating part, against the elastic return means, to allow the oblique extraction of the illuminating part relative to the base;
• FIG. 13 illustrates schematically and in perspective in a similar way to FIG. 11 the same lighting setup after its release according to FIG. 12 , the elastic restoring force exerted by the relaxation of the leaf springs of FIG. 3 And FIG. 4 out of their housing, to push the illuminating part obliquely relative to the base and thus extract it completely;
• FIG. 14 illustrates schematically and in cross-section, the particular case of laminated glass glazing;
• FIG. 15 illustrates schematically and in elevation, a vehicle comprising a lighting system according to the invention;
• FIG. 16 illustrates, in the form of a block diagram, the steps of an assembly process for such a lighting system, comprising a reversible assembly sequence in solid line, followed by a disassembly sequence in dashed line.

The invention relates to a lighting assembly 10 for a vehicle, in particular for a motor vehicle 1000.

This lighting assembly 10 includes a glazing 1 having an exterior face 12b intended to be oriented towards an exterior space EXT, an edge, and an interior face 11a intended to be oriented towards an interior space INT.

The lighting assembly 10 comprises at least one LED lighting module, itself comprising on the one hand a base 3, visible in FIG. 1 And FIG. 2 , and on the other hand at least one illuminating part 2, visible in FIG. 3 And FIG. 4 comprising at least one LED or light-emitting diode 22.

According to the invention, each base 3 is either arranged to be fixed to the inner face 11a on the side of the inner space INT, as seen in FIG. 2 And FIG. 5 , or incorporated into the glazing 1, the base 3 of which protrudes on the side of the interior space INT, as seen in FIG. 6 . And each base 3, thus fixed to the glazing 1, includes at least one bearing surface 345, 315, for receiving at least one removable illuminating part 2, and includes at least one elastic return means 36, preferably elastic return means 36, which is arranged or are arranged to hold by clipping, in a service position, an illuminating part 2 resting on at least one bearing surface 345, 315, near the inner face 11a, at a predetermined distance from the inner face 11a of the glazing 1.

And these elastic return means 36 are preferably at least two support tabs, one connecting end 33 of which is fixed to the base 3 near the edge of the glazing 1, and are oriented substantially towards the center of the glazing 1, in order to allow at least one illuminating part 2 to be introduced in a movement oriented generally from the center of the glazing 1 towards this edge.

The base 3 comprises longitudinal members 31, 34, which extend along a longitudinal direction Y. The elastic return means 36 extend along a transverse direction X, and are arranged to exert a thrust force along a frontal direction Z, this thrust force being directed towards the glazing 1 on which the base 3 is fixed.

More specifically, each illuminating part 2 is a plate, preferably opaque, arranged to be inserted between a first longitudinal member 31 of the base 3 and each elastic return means 36 of the base 3, or to be extracted from the base 3 between the first longitudinal member 31 and each elastic return means 36 of the base 3, obliquely with respect to a plane tangent locally to the inner face 11a of the glazing 1 at the level of the base 3, as seen in FIG. 7 .

Advantageously, each lighting part 2 includes at least one housing 28 arranged to cooperate with an elastic return means 36 of the base 3, and to limit its movement in the longitudinal direction Y to a minimum; this housing 28 advantageously includes a substantially flat bearing surface 237, arranged to cooperate with a projection 37 of the elastic return means 36 of the base 3. This elastic return means 36 is advantageously embedded at a connecting end 33, and includes a free end 38 for its operation by a manipulator or a user.

Advantageously, each lighting part 2 has 230, 250 cells for lightening and stiffening.

Each illuminating part 2 comprises a support plate 23 carrying at least one LED 22 on a support 21, this support plate 23 comprises a front part 24 having a second front surface 230 along the transverse direction X. The support plate 23 is adjacent to an operating plate 25.

Advantageously, the illuminating part 2 includes longitudinal stop means 249 arranged to cooperate with ribs 39 of the base 3, for precise positioning.

More specifically, the first longeron 31 of the base 3 has a first bearing surface 315, for example at a straight section 343, arranged to cooperate in support with a first complementary bearing surface 215 that comprises a lighting section 2 in the service position, in which the lighting section 2 is clipped onto the base 3. And the base 3 has a second longeron 34 that has a second bearing surface 345 arranged to cooperate in support with a second complementary bearing surface 240 that comprises the lighting section 2 in the service position, as seen in FIG. 7 And FIG. 8 .

More specifically, each elastic return means 36 of the base 3 has an elastic stroke allowing the insertion of the lighting part 2 in support on the first longitudinal member 31 and on the second longitudinal member 34.

More specifically, the second longitudinal member 34 or the elastic return means 36 comprises at least one second frontal stop bearing surface 330, which is arranged to constitute a frontal stop for a second frontal surface 230 comprising the illuminating part 2, upon insertion of the illuminating part 2, as seen in FIG. 7 .

More specifically, the first longitudinal member 31 comprises at least one first frontal stop bearing surface 310, which is arranged to constitute a frontal stop for a first frontal surface 210 comprising the illuminating part 2, in order to oppose the extraction of the illuminating part 2 in the absence of any manipulation of the elastic return means 36, as visible in FIG. 8 .

More specifically, the illuminating part 2 comprises at least one operating surface 29, which is arranged to be operated, as can be seen in FIG. 12 , by a tool or by a user to exert on the illuminating part 2 a force tending to move it away from the glazing 1 and to elastically deform the elastic return means 36 to allow the release of the first front surface 210 from the first front stop support surface 310, and to allow an angular movement of the illuminating part 2 with respect to the plane tangent locally to the inner face 11a of the glazing 1 at the level of the base 3.

More specifically, the illuminating part 2 comprises, in the vicinity of the second frontal surface 230, at least one elastic thrust means 26, as seen in FIG. 2 And FIG. 3 , which tends to oppose the introduction of the illuminating part 2 against the second frontal stop support surface 330, and to compensate for any play, and which is arranged to, in the absence of external force, extract the illuminating part 2 from the base 3 when the first frontal surface 210 is clear of the first frontal stop support surface 310, as seen in FIG. 13 .

In a first alternative, the base 3 is held onto the glazing 1 by means of adhesive 32, 35, as seen in FIG. 2 And FIG. 5 .

In a second alternative, base 3 is overmolded onto glazing 1, as seen in FIG. 6 And FIG. 9 . Supports 311 and 335 can then respectively carry a first longeron 312 with overmolding points 320, and a second longeron 340 with overmolding points 350, this second longeron 340 carrying each elastic return means 360 with its salient 370.

More specifically, as seen in FIG. 1 , the base 3 forms a frame comprising longitudinal members 31, 34 and ribs 39; this frame is arranged to completely surround the lighting part 2 in the service position, and makes it possible to constitute means of blocking light leakage into the interior of the vehicle.

More specifically, the glazing 1 is a laminated glazing comprising an inner glass sheet 11, an outer glass sheet 12, and at least one interlayer of plastic material 13 situated between the inner glass sheet 11 and the outer glass sheet 12. The interlayer of plastic material 13 may be, for example, flexible polyurethane, a plasticizer-free thermoplastic such as ethylene/vinyl acetate copolymer (EVA) or polyvinyl butyral (PVB). The interlayer of plastic material 13 may, for example, have a thickness of between 0.2 mm and 1.1 mm, or even between 0.38 mm and 0.76 mm.

As seen in FIG. 14 The inner glass sheet 11 has an inner face 11a, oriented towards the interior INT of the glazing 1, and an interlayer face 11b, oriented towards the exterior EXT of the glazing 1. The outer glass sheet 12 has an interlayer face 12a, oriented towards the interior INT of the glazing 1, and an outer face 12b oriented towards the exterior EXT of the glazing 1. The inner face 11a is the inner face of the glazing 1 and the outer face 12b is the outer face of the glazing 1. The plastic interlayer sheet 13 allows the inner glass sheet 11 to be bonded to the outer glass sheet 12.

A pane of glass is described as "laminated" in the sense that there is no gas or void space between the at least three layers that constitute it in the exterior-interior transverse direction. Although not illustrated, the pane may, in particular, include two interlayer sheets of plastic material.

More specifically, each illuminating part 2 of the LED lighting module includes electrical connection means 40 for plugging into the power supply and control means 50 of a vehicle 1000. As seen in FIG. 10 and in FIG. 11 , these electrical connection means 40 comprise a mobile cable bundle 42 and a mobile connector 41 arranged for its connection by plugging into a fixed connector 51 and a fixed cable bundle 52 which comprise the power supply and control means 50.

The invention also relates to a motor vehicle 1000 comprising at least one such lighting assembly 10.

The invention further relates to a method of assembling such a lighting assembly 10 for a vehicle 1000, the method comprising a succession of steps as follows.

A first step 100 of preparing the glazing 1, or of overmolding the base 3 onto the glazing 1, or of applying at least one adhesive material 32, 35, onto the base 3 and/or onto the inner face 11a of the glazing 1; in the alternative of applying adhesive material, a second step 200 of depositing the base 3 onto the inner face 11a.

Then a sequence of reversible assembly steps as follows.

A third step 300 of preparation of a lighting part 2 by fixing or gluing at least one light-emitting diode 22, and associated electrical connection means 40, on a second complementary support surface 240 which comprises the lighting part 2 and which is intended to face the inner face 11a of the glazing 1.

A fourth step 400 of oblique presentation of at least one illuminating part 2 between on the one hand a first spar 31 which comprises the base 3, and on the other hand at least one elastic return means 36 of the base 3.

A fifth step 500 of butting each lighting part 2 against a second longitudinal member 34 which comprises the base 3.

A sixth step 600 of placing each lighting part 2 on the first spar 31 and on the second spar 34, in a service position in which the lighting part 2 is held in support on the base 3 parallel to the inner face 11a of the glazing 1 under the force exerted by the clipping of the elastic return means 36, this holding being carried out at a predetermined distance from the inner face 11a of the glazing 1.

A seventh step 700 of connecting the electrical connection means 40 to the power supply and control means 50 that comprise the vehicle 1000.

In particular, the illuminating part 2 includes at least one elastic thrust means 26, and the fifth stop step 500 is accompanied by a compression of at least one elastic thrust means 26.

In particular, a preliminary marking step of the inner face 11a of the glazing 1 is carried out before the first step 100 of preparing the glazing 1.

More specifically, the assembly process includes, after the seventh connection step 700, a reversible disassembly sequence comprising an eighth disassembly step 800 of disconnecting the electrical connection means 40 of the power supply and control means 50, and a ninth disassembly step 900 of maneuvering each lighting part 2 by pressure by a tool or by a user on at least one maneuvering surface 29, which comprises each lighting part 2, against the elastic return means 36, to allow the oblique extraction of the lighting part 2 relative to the base 3, under the action of extraction thrust of at least one elastic thrust means 26 which comprises the lighting part 2.

In summary, the invention proposes a system for mounting/dismounting LED modules, thanks to a simple assembly of two elements: a base fixed to the glazing by means of adhesive or overmolded within the encapsulation, serving as a base and support for at least one illuminating element (which can be easily juxtaposed with the same base), this illuminating element integrating the LED module and the wiring. The assembly of the base and the illuminating element is simple, quick, and tool-free, achieved by sliding the illuminating element onto the base at an angle, without having to remove the glazing; removal is just as easy and allows for easy replacement of the LEDs if necessary.

Thanks to the support tabs, assembly (or disassembly) is carried out from the side; assembly and disassembly are tool-free. In the prior art, the available space was not taken into account, whereas here the invention requires very little space. Furthermore, for a particular, non-limiting configuration, such as a "rooftop" (glazing in the vehicle's roof), assembly (or disassembly) is carried out from the center of the glazing. But of course, this is not the only application of the invention.

The invention allows for the easy, quick, and tool-free mounting and dismounting of LED modules from vehicle-mounted glazing. This glazing can be encapsulated and include, via overmolding, the base that receives the LED module of the illuminating section. Furthermore, the assembly of the two components is quite thin (approximately 8 mm relative to the inner surface of the glazing), resulting in a significant space saving in terms of height within the vehicle.

Claims (18)

A lighting assembly (10) for a vehicle, in particular a motor vehicle, comprising a glazing (1) having an outer face (12b) intended to be oriented towards an exterior space (EXT), an edge, and an inner face (11a) intended to be oriented towards an interior space (INT), said lighting assembly (10) comprising at least one LED lighting module having, on the one hand, a base (3) and, on the other hand, at least one illuminating part (2) comprising at least one light-emitting diode (22), characterized in that each said base (3) is either arranged to be fixed to said inner face (11a) on the side of said interior space (INT), or incorporated into said glazing (1) of which said base (3) is projecting on the side of said interior space (INT), and in that each said base (3) has at least one bearing surface (345, 315) for receiving at least one removable illuminating part (2), and includes elastic return means (36) which are arranged to hold by clipping, in a service position, said illuminating part (2) in support on said at least one support surface (345, 315) near said inner face (11a), at a predetermined distance from said inner face (11a) of said glazing (1), and in that said elastic return means (36) are at least two support tabs, each support tab being linked to said base (3) at a connecting end (33) and extending substantially towards the center of said glazing (1), in order to allow at least one said illuminating part (2) to be introduced between said support tabs and said base (3) in a movement generally oriented from the center of said glazing (1) towards an edge of said glazing (1). Lighting assembly (10) according to claim 1, wherein each said lighting part (2) is arranged to be inserted between a first spar (31) of said base (3) and each said elastic return means (36) of said base (3), or to be extracted from said base (3) between said first spar (31) and each said elastic return means (36) of said base (3), obliquely with respect to a plane tangent locally to said inner face (11a) of said glazing (1) at the level of said base (3). Lighting assembly (10) according to claim 2, in which said first spar (31) of said base (3) comprises a first bearing surface (315) arranged to cooperate in support with a first complementary bearing surface (215) which comprises said lighting part (2) in said service position in which said lighting part (2) is clipped onto said base (3), and in that said base (3) comprises a second spar (34) which comprises a second bearing surface (345) arranged to cooperate in support with a second complementary bearing surface (240) which comprises said lighting part (2) in said service position. Lighting assembly (10) according to claim 3, wherein each of said elastic return means (36) of said base (3) has an elastic stroke allowing the insertion of said lighting part (2) in support of said first spar (31) and of said second spar (34). Lighting assembly (10) according to claim 4, wherein said second spar (34) or said elastic return means (36) comprises at least a second front stop bearing surface (330) arranged to constitute a front stop of a second front surface (230) comprising said lighting part (2), when said lighting part (2) is inserted. Lighting assembly (10) according to claim 5, wherein said first longitudinal member (31) comprises at least a first front stop bearing surface (310) arranged to constitute a front stop of a first front surface (210) comprising said lighting part (2), to oppose the extraction of said lighting part (2) in the absence of any manipulation of said at least one elastic return means (36). Lighting assembly (10) according to claim 6, wherein said lighting part (2) comprises at least one operating surface (29) arranged to be operated by a tool or a user to exert on said lighting part (2) a force tending to move it away from said glazing (1) and to elastically deform said elastic return means (36) to allow the release of said first front surface (210) from said first front stop support surface (310), and to allow an angular movement of said lighting part (2) with respect to said plane tangent locally to said inner face (11a) of said glazing (1) at the level of said base (3). Lighting assembly (10) according to claim 7, in which said lighting part (2) comprises, in the vicinity of said second front surface (230), at least one elastic thrust means (26), which tends to oppose the introduction of said lighting part (2) into a butt against second front stop support surface (330), and which is arranged to, in the absence of external force, extract said lighting part (2) from said base (3) when said first front surface (210) is clear of said first front stop support surface (310). Lighting assembly (10) according to any one of claims 1 to 8, wherein said base (3) is held on said glazing (1) by means of bonding (32, 35). Lighting assembly (10) according to any one of claims 1 to 8, wherein said base (3) is overmolded onto said glazing (1). Lighting assembly (10) according to any one of claims 1 to 10, wherein said base (3) forms a frame comprising longitudinal members (31, 34) and ribs (39), which is arranged to completely surround said lighting part (2) in said service position, and to constitute means of blocking light leakage into the interior of the vehicle. Lighting assembly (10) according to any one of claims 1 to 11, wherein said glazing (1) is a laminated glazing comprising an inner sheet of glass (11), an outer sheet of glass (12), and at least one interlayer sheet of plastic material (13) situated between said inner sheet of glass (11) and said outer sheet of glass (12). Lighting assembly (10) according to any one of claims 1 to 12, wherein each said illuminating part (2) of said at least one LED lighting module comprises electrical connection means (40) for its connection by plugging into power supply and control means (50) included in said vehicle. Motor vehicle (1000) comprising at least one lighting assembly (10) according to any one of claims 1 to 13. Method of assembling a lighting assembly (10) according to any one of claims 1 to 13 for a vehicle (1000), said method comprising a first step (100) of preparing said glazing (1): either of overmolding said base (3) onto said glazing (1), or of applying at least one adhesive material (32, 35) onto said base (3) and/or onto said inner face (11a) of said glazing (1); in the alternative of applying adhesive material, a second step (200) of depositing said base (3) onto said inner face (11a); then a sequence of reversible assembly steps comprising a third step (300) of preparing said illuminating part (2) by fixing or gluing at least one light-emitting diode (22), and associated electrical connection means (40), on a second complementary support surface (240) comprising said illuminating part (2) and which is intended to face said inner face (11a) of said glazing (1); a fourth step (400) of obliquely presenting at least one said illuminating part (2) between on the one hand a first stringer (31) comprising said base (3), and on the other hand at least one said elastic return means (36) of said base (3); a fifth step (500) of butting each said illuminating part (2) against a second stringer (34) comprising said base (3); a sixth step (600) of placing each said lighting part (2) on said first longitudinal member (31) and on said second longitudinal member (34), in a service position in which said lighting part (2) is held in support on said base (3) parallel to said inner face (11a) of said glazing (1) under the force exerted by the clipping of said elastic return means (36), at a predetermined distance from said inner face (11a) of said glazing (1); a seventh step (700) of connecting said electrical connection means (40) to power supply and control means (50) included in said vehicle (1000). Assembly method according to claim 15, wherein said illuminating part (2) comprises at least one elastic thrust means (26) according to claim 8, and in that said fifth stop step (500) is accompanied by a compression of said at least one elastic thrust means (26) Assembly method according to claim 15 or 16, wherein a preliminary marking step of said inner face (11a) of said glazing (1) is carried out before said first preparation step (100) of said glazing (1). Assembly method according to any one of claims 15 to 17, comprising, after said seventh step (700) of connection, a reversible disassembly sequence comprising an eighth disassembly step (800) of disconnection of said electrical connection means (40) of the power supply and control means (50), and a ninth disassembly step (900) of maneuvering each said lighting part (2) by pressure by a tool or by a user on at least one maneuvering surface (29), which comprises each said lighting part (2), against said elastic return means (36), to allow the oblique extraction of said lighting part (2) relative to said base (3), under the action of extraction thrust of at least one elastic thrust means (26) which comprises said lighting part (2).