FR3071905A1 - LUMINOUS DEVICE FOR MOTOR VEHICLE - Google Patents

Abstract

The invention relates to a light device (1) for a motor vehicle comprising: - a housing (10) - at least one optical module (13) disposed in said housing (10) and comprising: - at least one light source (11); - optical means (12) adapted to cooperate with light rays (R) of said at least one light source (11); characterized in that said light device (1) comprises a support (110) and in that said at least one light source (11) is removably mounted on said support (110), said support (110) being movable in rotation relative to said optical means (12).

Description

LIGHT DEVICE FOR A MOTOR VEHICLE

TECHNICAL FIELD OF THE INVENTION

The present invention relates to a light device for a motor vehicle.

It finds a particular but non-limiting application in the 5 lighting and / or signaling devices for motor vehicles.

TECHNOLOGICAL BACKGROUND OF THE INVENTION

A light device for a motor vehicle comprises, in a manner known to a person skilled in the art:

- a housing ;

- an optical module disposed in said housing and comprising:

- at least one light source;

- At least one associated optical means adapted to cooperate with light rays from said at least one light source.

The light sources are welded to an electronic card of the optical module.

A disadvantage of this state of the art is that in the event of a malfunction of said at least one light source, the entire light device must be changed.

GENERAL DESCRIPTION OF THE INVENTION

To this end, the invention provides a light device for a motor vehicle, said light device comprising:

- a housing

- at least one optical module disposed in said housing and comprising:

- at least one light source;

- an optical means adapted to cooperate with light rays from said at least one light source;

- remarkable in that said light device comprises a support and in that said at least one light source is removably mounted on said support, said support being movable in rotation relative to said optical means.

Thus, as will be seen in detail below, the fact of assembling the light sources removably on a support movable relative to the optical means, makes it possible to remove a light source without touching said optical means itself or any other element of the light system. It is thus possible to replace a defective light source without replacing the entire light device.

According to non-limiting embodiments, the light device can also include one or more additional characteristics among the following:

According to a nonlimiting embodiment, taken alone or in combination of:

- Said optical means comprises at least one cavity, said at least light source cooperating with said cavity;

- Said optical means comprises a plurality of cavities, a light source cooperating with each cavity;

- Which said at least one light source comprises an emitting surface adapted to be placed at the focus of said optical means;

- Said light device further comprises a device for locking said support;

- said locking device is an elastic tongue or a rotary lock:

- Said support is adapted to take a locked position in which said at least one light source comprises an emitting surface adapted to be placed in said at least one cavity of said optical means so as to perform a lighting function;

- Said housing comprises an opening adapted to close said housing and adapted to be closed by a removable cover;

- Said at least one light source comprises a bayonet device;

- Said optical means is a reflector and / or a lens;

- Said optical means comprises a plurality of sectors dedicated to a lighting function;

- Said light device comprises a plurality of light sources;

- Said support comprises at least one step so as to place said light sources on different planes;

- said optical means is adapted to cooperate with light rays from a plurality of light sources or said optical means is adapted to cooperate with light rays from a single light source;

- Said light device comprises a plurality of optical modules.

BRIEF DESCRIPTION OF THE FIGURES

The invention and its various applications will be better understood on reading the description which follows and on examining the figures which accompany it.

- Figure 1 schematically shows a side view of a light device according to a non-limiting embodiment of the invention, said light device comprising at least one light source, a support for said at least one light source, optical means cooperating with light rays from said at least one light source;

- Figure 2 shows a schematic front view and profile of said at least one light source of Figure 1, according to a non-limiting embodiment;

- Figure 3a schematically shows a profile view of a locking device of said light source of the light device of Figure 1, according to a first non-limiting embodiment;

- Figure 3b schematically shows a profile view of a locking device of said light source of the light device of Figure 1, according to a second non-limiting embodiment;

- Figure 4 schematically shows a front view of a part of a support of the light device of Figure 1 on which are arranged a plurality of light sources, according to a non-limiting embodiment;

- Figure 5a schematically illustrates a front view of a support of said light device of Figure 1, on which are arranged a plurality of light sources each associated respectively with an optical means, according to a non-limiting embodiment;

- Figure 5b schematically illustrates a front view of a support of said light device of Figure 1, on which are arranged a plurality of light sources associated with the same optical means, according to a non-limiting embodiment;

- Figure 5c schematically illustrates a front view of a support of said light device of Figure 1, on which are arranged a plurality of light sources, part of which is associated with optical means and another part with other optical means , according to a nonlimiting embodiment;

- Figure 6 schematically shows a top view of a support of the light device of Figure 1 comprising a plurality of cavities, according to a non-limiting embodiment.

DESCRIPTION OF EMBODIMENTS OF THE INVENTION

Identical elements, by structure or by function, appearing in different figures keep, unless otherwise specified, the same references.

The light device 1 for a motor vehicle according to the invention is described with reference to Figures 1 to 6.

By motor vehicle is meant any type of motor vehicle.

In a nonlimiting embodiment, the light device 1 is adapted to perform a lighting and / or signaling function.

In a first non-limiting alternative embodiment, the light device 1 is a headlight or a rear light for a motor vehicle. Thus, the Fct lighting function produced is a high beam called “high beam” in English or a low beam (or code) called “low beam” in English in nonlimiting examples.

In a second non-limiting variant, the light device 1 is:

- a Tl flashing light called in English "Turn Indicator"; and or

- a DRL daytime running light called in English "Daytime Running Lamp"; and or

- a DPL parking light called “Parking Lamp” in English; and or

- a position light T called in English "Tail"; and or

- an STP stop light called in English "Stop lamp"; and or

- a reversing light R called in English "Reverse"; and or

- an FG fog lamp called in English “Fog lamp”; and or

- a side light SM called in English "Side marker"; and or

- a third stop light CHMSL, called in English "Center High-Mount Stop Light".

As illustrated in FIG. 1, the light device 1 comprises:

- a box 10;

- at least one optical module 13 placed in said housing 10 and comprising:

- at least one light source 11;

- An optical means 12 adapted to cooperate with light rays R of said at least one light source 11;

a support 110 on which said at least one light source 11 is mounted.

In a nonlimiting embodiment, the light device 1 also comprises a device 120 for locking said support 110.

In a nonlimiting embodiment, the light device 1 comprises a plurality of light sources 11.

An optical module 13 produces a light segment (not illustrated).

In nonlimiting embodiments, the light device 1 comprises a single (FIG. 5b) or a plurality (FIGS. 5a and 5c) of optical modules 13. As illustrated in FIGS. 5a, 5b and 5c, there are respectively three optical modules 13, a single optical module 13 and two optical modules 13. In the case of a plurality of optical modules 13, the light segments produced by each optical module 13 can be adjusted vertically and horizontally, so known to those skilled in the art, so as to be aligned with one another and so as to create a segmented light beam (not shown) composed of several light segments, selectively activatable.

The elements of the light device 1 are described in detail below.

• Β °! Ϊ! ΘΓ..1Ο

The said housing is illustrated in FIG. 1.

A housing 10 is adapted to protect said light source 11 and the optical means 12 from dust and water infiltration.

The housing 10 includes:

- at least one opening 100; and

a window 102 adapted to close said housing 10.

Opening 100 is adapted to allow access to light sources

11. It thus allows the passage of an operator's hand or a tool. The opening 100 is closed by a removable cover 101.

The opening 100 is thus arranged so that an operator can introduce his hand or a tool in order to replace a light source 11 without changing the entire light device 1.

The glass 102 is adapted to let the light rays pass through R. It is transparent or tinted.

• Spurçejumineuse 1.1

Said light source is illustrated in FIGS. 1 to 5.

A light source 11 is adapted to emit light rays R which cooperate with an optical means 12.

A light source 11 comprises:

- A light emitting surface 111 adapted to generate light rays R; and

a radiator 113 adapted to dissipate the heat released by said light source 11.

The light source 11 is removably mounted on said support 110. To this end, in a nonlimiting embodiment illustrated in FIG. 2, the light source 11 comprises a bayonet device 112 adapted to allow positioning and mounting / disassembly of said light source 11 on said support 110. Thus, the light source 11 can be easily removed from the support 110. In a nonlimiting exemplary embodiment illustrated in FIG. 2, the bayonet device 112 comprises three bayonets.

The light emitting surface 111 is adapted to operate when it is positioned at the focal point 122 (illustrated in FIG. 1) of the optical means 12. It emits the light rays R which cooperates with the optical means 12 so as to generate a sub- light segment S illustrated in FIG. 1 which, with the other light sub-segments S of the other optical means 12, makes it possible to produce the light segment of the optical module 13 and thus perform the lighting function of the light device 1.

In a nonlimiting embodiment, a light source 11 is a semiconductor light source, in particular a semiconductor emitting chip. In a nonlimiting alternative embodiment, the semiconductor light source is part of a light emitting diode. By light emitting diode is meant any type of light emitting diode, whether in non-limiting examples of LEDs ("Light Emitting Diode"), an OLED ("Organic LED") or an AMOLED ("Active-Matrix-Organic LED" ), or even a FOLED ("Flexible OLED"). In a nonlimiting embodiment, the light source 11 is a monochromatic or RGB (for “Red, Green, Blue” in English) or RGBW (for “Red, Green, Blue, White” in English) light source.

• Optical medium 12

The optical means 12 is illustrated in FIGS. 1 and 3a to 6.

It is adapted to cooperate with the light rays R of said light source 11. It is further adapted to fix at least one support 110 of a light source 11.

In a nonlimiting embodiment, the optical means 12 is a lens and / or a reflector and / or a light guide and / or a collimator.

In a nonlimiting embodiment, said optical means 12 comprises a plurality of sectors dedicated to the lighting function Fct. For example, in the case of a reflector, it may have several juxtaposed facets or else in the case of a projection lens, it may include several portions with distinct optical properties.

The optical means 12 further comprises:

- A base 124 on which the support 110 of the light source 11 can rest;

- At least one cavity 121 adapted to receive the emitting surface 111 of a light source 11;

- a reflecting surface 126 adapted to cooperate with the light rays R of at least one light source 11 so as to produce a light sub-segment S illustrated in FIG. 1.

In a nonlimiting embodiment, the optical means 12 further comprises a focal point 122, from which the light rays R of a light source leave. The optical means 12 is adapted to direct the light rays R towards a desired direction . The light-emitting surface 111 is placed in the cavity 121 at the focal point 122 of the optical means 12. As illustrated in FIG. 1, the light rays R emitted by the emitting surface 111 reach the reflecting surface 126 of the optical means 12 and are reflected in the desired direction so as to produce the light sub-segment S.

In a first nonlimiting embodiment illustrated in FIGS. 5a and 5c, an optical means 12 is adapted to cooperate with the light rays R of a single light source 11.

In the nonlimiting example illustrated in FIG. 5a, there are thus three optical modules 13 each comprising an optical means 12 and three light sources 11 respectively associated with each of the three optical means

12. In the nonlimiting example illustrated in FIG. 5c, there is thus an optical module 13 (the one on the right) comprising an optical means 12 and a single light source 11 associated.

In a second nonlimiting embodiment illustrated in FIG. 5b and 5c, an optical means 12 is adapted to cooperate with the light rays R of a plurality of light sources 11. In the nonlimiting example illustrated in FIG. 5b, there is thus an optical module 13 which comprises an optical means 12 adapted to cooperate with the light rays R of three light sources 11. In the nonlimiting example illustrated in FIG. 5c, there is thus an optical module 13 (the one on the left ) which comprises an optical means 12 adapted to cooperate with the light rays R of two light sources 11.

Of course, these two embodiments can be combined with one another as illustrated in FIG. 5c.

Furthermore, in a first nonlimiting embodiment illustrated in FIGS. 5a and 5c, the optical means 12 comprises only a single cavity 121 adapted to cooperate with a single light source 11. Thus, an optical means 12 cannot cooperate with light rays R only from a single light source 11. As illustrated in FIG. 5a, there are three optical means 12 each comprising a single cavity 121 cooperating with a single light source 11, namely a single emitting surface 111 can be placed in said cavity 121. As illustrated in FIG. 5c, there is an optical means 12 (that on the right) comprising a single cavity 121 cooperating with a single light source 11.

Furthermore, in a second nonlimiting embodiment illustrated in FIGS. 5b and 5c, the optical means 12 comprises a plurality of cavities 121, a light source 11 cooperating with each cavity 121. Thus, an optical means 12 can cooperate with light rays R from several light sources 11. As illustrated in FIG. 5b, there is only one optical means 12 which comprises three cavities 121 each cooperating with a light source 11, namely an emitting surface 111 is placed in each cavity 121. As illustrated in FIG. 5c, there is an optical means 12 (on the left) which comprises two cavities 121 each cooperating with a light source 11.

Of course, these two embodiments can be combined as illustrated in FIG. 5c.

In a nonlimiting embodiment, the optical module 12 also comprises a part of the pivot 123 described below.

• Support.) .10

The support 110 is illustrated in FIGS. 1 and 3a to 6.

As illustrated in FIG. 6, it is adapted to receive and fix at least one light source 11. It comprises at least one cavity 1100 allowing the passage of a light source 11.

In a nonlimiting embodiment, the support 110 further comprises at least one notch 1101 allowing the passage of a bayonet of the bayonet device 112. In the nonlimiting example illustrated in FIG. 6, it comprises three notches 1101. This makes it possible to dismantle / mount said light source 11.

The support 110 is removable in rotation relative to said optical means 12. It thus pivots relative to said optical means 12 about an axis A illustrated in FIG. 1 defined by a pivot 123. The pivot 123 is thus adapted to rotate in rotation of said support 110. By pivoting said support 110 makes the light source 11 more accessible.

In a nonlimiting embodiment, the pivot 123 is integral or not with the optical means 12 or the housing 10. Thus, in a nonlimiting embodiment, the pivot 123 is produced partly on the optical means 12 and partly on the support 110. Thus, in a nonlimiting exemplary embodiment, the pivot 123 comprises a pin arranged on the optical means 12 adapted to cooperate with a hole in the support 110.

The support 110 is suitable for taking:

- an unlocked position p1 as illustrated in FIG. 1;

- a locked position p2 as illustrated in Figures 3a and 3b.

In the unlocked position p1, the support 110 is not pressed against the base 124 of the optical means 12 and is free to rotate. Furthermore, the emitting surface 111 of the light source 11 is outside any cavity 121 of the optical means 12.

In the locked position p2, the support 110 is pressed against the base 124 of the optical means 12 and is not free to rotate. Furthermore, the emitting surface 111 of the light source 11 is placed in a cavity 121 of the optical means 12. It is in particular placed at the focus 122 of said optical means 12.

In an embodiment illustrated in the front view of FIG. 4, said support 110 comprises at least one step 114 so as to place said light sources 11 on different planes which are parallel to the longitudinal axis B of said support 110. As can be seen in the nonlimiting example illustrated, the central light source 11 is offset with respect to the adjacent light sources 11 placed on either side. The offset is thus made along an axis perpendicular to the longitudinal axis B of said support 110.

In a first nonlimiting embodiment illustrated in FIGS. 5a, 5b or 5c, a support 110 is adapted to cooperate with a single optical means 12. As illustrated in FIG. 5a, there are three different supports 110 for three optical means 12 different. As illustrated in FIG. 5b, there is a single support 110 which cooperates with a single optical means 12.

In a second nonlimiting embodiment illustrated in FIG. 5c, a support 110 is adapted to cooperate with a plurality of optical means 12. As illustrated in FIG. 5c, there is a single support 110 for two optical means 12.

Of course, these two nonlimiting embodiments can be combined, as illustrated in FIG. 5c.

The support 110 is fixed to the optical means 12 by means of the locking device 120 described below.

• Locking device 120

The locking device 120 is illustrated in Figures 1 and 3a and 3b.

The locking device 120 is suitable for locking / unlocking the support 110 in relation to the optical means 12 and therefore for fixing it to said optical means 12. In a nonlimiting embodiment, the locking / unlocking is carried out manually, To this end, an operator locks / unlocks the support 110 by acting on the locking device 120.

o First embodiment

In a first embodiment illustrated in FIG. 3a, the locking device 120 is an elastic tongue. As illustrated, the elastic tongue 120 starts from the base 124 of the optical module 12 and extends perpendicular to said base 124.

When the locking device 120 is an elastic tongue, to lock said support 110, the operator exerts pressure on the light source 11 via its radiator 113 or its support 110 for example to rotate it with its support around the axis A of the pivot 123 so that one end of the support 110 is trapped in the elastic tongue 120 and that said support 110 is pressed against the base 124 of the optical means 12. The emitting surface 111 of the light source 11 is thus placed in the cavity 121 and at the focus 122 of said optical means 12. Said light source 11 can function correctly.

To unlock the support 110, the operator pulls on said elastic tongue 120 backwards in order to make the support 110 free to rotate and thus to unlock it. A return spring can be provided in the pivot 123 so that the support 110 automatically returns to the position parallel to the opening 100.

Thus, when the support 110 is unlocked, the operator can then pivot the support 110 around the axis A of the pivot 123 and pull the support 110 and light source 11 assembly backwards until the support 110 is substantially parallel. at the opening 100 of the housing 10 so that the light source (s) 11 is (are) opposite said opening 100. In this position the operator can easily remove the source (s) (s) light (s) 11 of the support 110 to replace them (without replacing the other elements of the light device 1 or all of the light device 1.

o Second embodiment

In a second embodiment illustrated in FIG. 3b, the locking device 120 is a rotary lock. In a nonlimiting example illustrated, the rotary lock is a flexible spring. In this case, it will be noted that the base 124 of the optical means 12 comprises two hooks 125 arranged on either side of the support 110 when the latter is in the locked position p2 adapted to keep the flexible spring hooked and in position. Note that in Figure 3b, a single hook 125 is illustrated since it is a side view.

When the locking device 120 is a flexible spring, to lock said support 110, the operator exerts pressure on the light source 11 via its radiator 113 or its support 110 for example to rotate it with its support 110 around the axis A of the pivot 123 so that said support 110 is pressed against the base 124 of the optical means 12. Then it causes the rotary lock 120, here the flexible spring, to pivot forward by rotating it so that it passes above the light source 11 and comes to hang on the two hooks 125 and thus remain in position. The emitting surface 111 of the light source 11 is thus placed in the cavity 121 and at the focus 122 of said optical means 12. Said light source 11 can function correctly.

To unlock the support 110, the operator moves the flexible spring 120 outwards from the support 110 so as to unhook it from the hooks 125 and makes it pivot backwards as indicated by the arrow illustrated in FIG. 3b so to make the support 110 free to rotate and thus to unlock it.

Thus, when the support 110 is unlocked, the operator can then pivot the support 110 around the axis A of the pivot 123 and pull the support 110 and light source 11 assembly backwards until the support 110 is substantially parallel. at the opening 100 of the housing 10 so that the light source (s) 11 is (are) opposite said opening 100. In this position the operator can easily remove the source (s) (s) light (s) 11 of the support 110 to replace them (without replacing the other elements of the light device 1 or all of the light device 1.

Of course, the description of the invention is not limited to the embodiments described above.

Thus, in another nonlimiting embodiment, the pivot 123 is produced partly on the housing 10 instead of the optical means 12 and partly on the support 10.

Thus, the invention described has the following advantages in particular:

- Thanks to the addition of the rotating support 110, it facilitates the replacement of a defective light source 11:

- It allows easy access to the light sources 11 to be replaced by the opening 100 of the light device 1 and by the pivoting of the support 110 on which are fixed the light sources 11 to be replaced and which is placed opposite said opening 100 ;

- It allows to simply rotate a support 110 of light sources 11 by releasing the locking device 120;

- It allows rapid replacement of a defective light source 11;

- It is not necessary to remove from the vehicle all the light device 1 to perform the operation of replacing a light source 11;

- It is not necessary to discard the entire light device 1 just to replace a light source 11, which significantly reduces the cost of replacing said light source 11;

- It allows easy mounting of a light source 11 on its support 110 unlike a mounting system of a light source 11 directly on an associated optical module.

Claims (15)

1. Light device (1) for a motor vehicle, said light device (1) comprising: - a housing (10) - at least one optical module (13) disposed in said housing (10) and comprising: - at least one light source (11); - an optical means (12) adapted to cooperate with light rays (R) of said at least one light source (11); - characterized in that said light device (1) comprises a support (110) and in that said at least one light source (11) is removably mounted on said support (110), said support (110) being movable in rotation relative to said optical means (12). 2. A light device (1) according to claim 1, wherein said optical means (12) comprises at least one cavity (121), said at least light source (11) cooperating with said cavity (121). 3. Light device (1) according to claim 2, wherein said optical means (12) comprises a plurality of cavities (121), a light source (11) cooperating with each cavity (121). 4. Light device (1) according to any one of the preceding claims 1 to 3, in which said at least one light source (11) comprises an emitting surface (11) adapted to be placed at the focal point (122) of said optical means ( 12). 5. A light device (1) according to any one of the preceding claims 1 to 4, wherein said light device (1) further comprises a locking device (120) of said support (110). 6. Light device (1) according to claim 5, wherein said locking device (120) is an elastic tongue or a rotary lock. 7. A light device (1) according to any one of claims 2 to 6, wherein said support (110) is adapted to take a locked position in which said at least one light source (11) comprises an emitting surface (111) adapted to be placed in said at least one cavity (121) of said optical means (12) so as to perform a lighting function (Fct). 8. Light device (1) according to any one of claims 1 to 7, wherein said housing (10) comprises an opening (100) adapted to close said housing (10) and adapted to be closed by a removable cover (101 ). 9. A light device (1) according to any one of claims 1 to 8, wherein said at least one light source (11) comprises a bayonet device (112). 10. Luminous device (1) according to any one of the preceding claims 1 to 9, in which said optical means (12) is a reflector and / or a lens. 11. A light device (1) according to any one of the preceding claims 1 to 10, wherein said optical means (12) comprises a plurality of sectors dedicated to a lighting function (Fct). 12. Light device (1) according to any one of claims 1 to 11, wherein said light device (1) comprises a plurality of light sources (11). 13. A light device (1) according to claim 12, wherein said support (110) comprises at least one recess (114) so as to place said light sources (11) on different planes. 14. Lighting device (1) according to any one of claims 1 5 to 13, wherein said optical means (12) is adapted to cooperate with light rays (R) from a plurality of light sources (11) or said optical means (12) is adapted to cooperate with light rays (R ) from a single light source (11). 10 15. Light device (1) according to any one of claims 1 to 14, wherein said light device (1) comprises a plurality of optical modules (13).