Lighting device

Abstract

The invention relates to a motor vehicle having a front side opening, and comprising a passenger compartment with a dashboard and interior trim mounted on the front side opening, the passenger compartment further comprising a first lighting device (1) integral with said interior trim with a first series (3) of light-emitting diodes aligned in a first row (5) and a second lighting device (7) integral with the dashboard with a second series (9) of light-emitting diodes aligned in a second row (11), said second lighting device (7) showing at least one side face (13) opposite said interior trim, said motor vehicle is notable in that the second lighting device (7) comprises at least one light-emitting diode (15) arranged between said side face (13) and the first row (5). Figure to be published with the abbreviation: Fig. 1

Description

Title of the invention: Lighting device

[0001] The invention relates to the interior lighting of a motor vehicle.

[0002] In order to ensure brightness in the passenger compartment of a motor vehicle to give the driver and other passengers a feeling of comfort and calm, interior lighting assemblies which make it possible to perform useful lighting functions and / or so-called ambient lighting functions can be installed within the passenger compartment. In particular, ambient lighting systems diffusing low-intensity light can be installed on different surfaces of the trim present in the passenger compartment, for example at the level of the interior panels of the openings and / or the dashboard.

[0003] Thus, for example, document FR 3 086 732 describes an optical system for the interior lighting of a motor vehicle. The optical system comprises a screen and a plurality of light sources arranged in series. A light box defining an internal volume filled with air delimited by walls with reflective properties is interposed between the plurality of light sources and the screen. The light sources project a light beam onto the screen by passing through the light box. Thus, the light beam is reflected within the light box and does not undergo refraction, which ensures good homogenization of the light beam. This system can be located at the level of a door strip and / or a dashboard of a motor vehicle.

[0004] However, with this type of optical system, there is no visual continuity of light at the front of the passenger compartment. This is in fact prevented due to the interior configuration of the passenger compartment between the interior trim arranged along the front side openings and the dashboard which prevents the installation of a continuous printed circuit comprising a set of light-emitting diodes, since it is necessary to provide for the opening and closing of the front side openings. Thus, the alcove shown by the front end of the interior trim is not illuminated, which makes the interior lighting of a motor vehicle inhomogeneous.

[0005] The invention aims to address at least one of the problems or drawbacks encountered in the prior art. In particular, the invention aims to propose a motor vehicle whose front contours of the passenger compartment have uniform lighting when the front side openings are in the closed position.

[0006] To this end, and according to a first aspect, the invention relates to a motor vehicle showing a front side opening, and comprising a passenger compartment with a dashboard and interior trim mounted on the front side opening, the passenger compartment further comprising a first lighting device secured to said interior trim with a first series of light-emitting diodes aligned along a first line and a second lighting device secured to the dashboard with a second series of light-emitting diodes aligned along a second line, said second lighting device showing at least one lateral face opposite said interior trim, said motor vehicle is remarkable in that the second lighting device comprises at least one light-emitting diode arranged between said lateral face and the first line.

[0007] For example, the interior trim has an alcove at its front end and said at least one lateral face of said second lighting device faces said alcove.

[0008] As will be understood from reading the definition which has just been given, the invention relates to a motor vehicle where at least one light-emitting diode is located at the end of the lighting device secured to the dashboard, that is to say at the end of the second lighting device. The light-emitting diode(s) located in this position are thus brought closer to the interior trim, more particularly to the alcove presented by the front end of the interior trim, and thus make it possible, when the front side openings are in the closed position, to reduce, or even eliminate, the shadow zone at the alcove, which therefore makes it possible to improve the homogeneity of the interior lighting of a motor vehicle.

[0009] Advantageously, the second lighting device further comprises a lens at said lateral face. Preferably, said lens is a diverging lens.

[0010] Advantageously, the second lighting device is mounted on a support adjoining the dashboard, said support having an extension extending longitudinally along the interior trim to a front end of the first lighting device when the front side opening is in the closed position, said extension having at least one side wall where a surface capable of reflecting light is arranged opposite said interior trim, more particularly with the alcove presented by the front end of the interior trim. Thus, the surface capable of reflecting light arranged opposite said interior trim makes it possible to amplify the lighting at the level of the interior trim.

[0011] For example, said at least one light-emitting diode arranged between said side face and the first line shows a rectangular shape and is inclined between an angle ranging from 45° to 90° relative to the direction of the second line, or between an angle ranging from 50° to 85°, or between an angle ranging from 55° to 80°, or between an angle ranging from 60° to 75°.

[0012] For example, said at least one light-emitting diode arranged between said lateral face and the first line shows a rectangular shape with a first length and a first width, said first length being opposite the interior trim, more particularly with the alcove presented by the front end of the interior trim.

[0013] For example, the second series of light-emitting diodes comprises a first subset of one or more diodes and a second subset of one or more diodes, the first subset being arranged between said side face and the first line and the second subset being arranged following the first subset from the first line in the opposite direction to said side face, and the diode(s) of the first subset have a rectangular shape with a first length and a first width with the first length opposite the interior trim and the diode(s) of the second subset have a rectangular shape with a second length and a second width with the second length arranged parallel to the dashboard.

[0014] Preferably, the support is made of plastic material and the second lighting device is fixed to said support by means of a welding point.

[0015] Preferably, said extension of the support has at least one recess. This makes it possible to lighten the extension of the support.

[0016] Preferably, said extension of the support has at least one channel configured to receive at least one cable, for example a cable necessary for the first lighting device and / or the second lighting device.

[0017] For example, the surface capable of reflecting light is glued and / or snapped onto said at least one side wall of the extension of the support.

[0018] For example, the surface capable of reflecting light is a piece of metal. Preferably, the surface capable of reflecting light is made of aluminum. For example, the surface capable of reflecting light is made of brushed aluminum.

[0019] Preferably, the first lighting device and / or the second lighting device each comprise a light diffuser. Advantageously, the light-emitting diode(s) of the first series of light-emitting diodes and / or the second series of light-emitting diodes are in the corresponding light diffuser. Advantageously, said at least one light-emitting diode arranged between said lateral face and the first line of said second lighting device is also in the light diffuser comprised by the second lighting device.

[0020] For example, the light diffuser is made of transparent plastic, such as polycarbonate, milky polycarbonate and / or polymethyl methacrylate (PMMA), preferably milky polycarbonate and / or polymethyl methacrylate. (PMMA).

[0021] The invention will be well understood and other aspects and advantages will appear clearly on reading the following description given with reference to the appended figures in which:

[0022] [Fig-1] [Fig. 1] is a diagram of the arrangement between the first lighting device and the second lighting device according to the present invention.

[0023] [Fig.2] [Fig.2] is a representation of the second lighting device with its support according to the present invention.

[0024] In the following description, the term "comprise" is synonymous with "include" and is not limiting in that it allows for the presence of other steps in the method or other elements in the sealing frame or vehicle to which it relates. It is understood that the term "comprise" includes the terms "consist of". The terms "external" and "internal" will designate respectively that which is oriented towards the outside of the vehicle and towards the inside of the vehicle.

[0025] Similarly, the terms "lower", "upper", "high" and "low" will be understood according to their usual definition, in which the terms "lower" and "low" indicate a greater proximity to the ground in the vertical direction than the terms "upper" and "high" respectively.

[0026] In the present description, the term "longitudinal" and the term "transverse" are used according to the reference system of the vehicle, in the mounting configuration. The term "longitudinal" corresponds to the main direction of movement of the vehicle. The term "transverse" corresponds to a direction perpendicular to the main direction of movement of the vehicle. The term "front" refers to the main direction of movement of the vehicle. The term "rear" designates the opposite of the front of the vehicle.

[0027] Throughout the description, the different figures use the same reference signs to designate identical or similar entities.

[0028] A motor vehicle generally has two front side openings, and includes a passenger compartment with a dashboard. An interior trim is mounted on each front side opening. Each front side opening can be located between a closed position, recommended when driving the vehicle, and an open position, to allow occupants to enter or exit the vehicle.

[0029] As shown in the diagram of [Fig.l], the passenger compartment further comprises a first lighting device 1 secured to said interior trim with a first series 3 of light-emitting diodes aligned along a first line 5 and a second lighting device 7 secured to the dashboard with a second series 9 of light-emitting diodes aligned along a second line 11. Thus, when the front side opening is in the closed position, the second line lias a transverse direction relative to the vehicle, while the first line 5 has a longitudinal direction relative to the vehicle.

[0030] Preferably, the first lighting device 1 is mounted on a support, for example a plastic support, attached to the interior trim.

[0031] Preferably, the second lighting device 7 is mounted on a support 19, for example a plastic support, attached to the dashboard.

[0032] The second lighting device 7 shows at least one lateral face 13 opposite said interior trim.

[0033] According to the invention, the motor vehicle is remarkable in that the second lighting device 7 comprises at least one light-emitting diode 15 arranged between said lateral face 13 and the first line 5, that is to say either at the level of the first line 5, or at a location situated at any distance between the lateral face 13 and the first line 5.

[0034] Preferably, the second lighting device 7 comprises at least one light-emitting diode 15 arranged between said lateral face 13 and the first line 5 at the level of the second line 11, that is to say in the line of the second series 9 of light-emitting diodes which are aligned along the second line 11.

[0035] For example, in the diagram of [Fig.l], said at least one light-emitting diode 15 is arranged on the second lighting device 7 at the level of the first line 5, in the line of the second series 9 of light-emitting diodes which are aligned along the second line 11. Thus said at least one light-emitting diode 15 may be a light-emitting diode forming part of the second series 9 or may be a light-emitting diode which has been added to the second lighting device 7.

[0036] Since at least one light-emitting diode 15 is located at the lateral end of the second lighting device 7 secured to the dashboard, namely opposite the interior trim or more particularly opposite the alcove presented by the front end of the interior trim, the shadow zone resulting from the discontinuity between the first lighting device 1 and the second lighting device 7, due to the fact that the front side opening can be in an open position, is reduced, or even completely eliminated when the front side opening is in the closed position. Indeed, light intensity is provided thanks to the presence of one or more light-emitting diodes in an environment close to the interior trim.Thanks to the presence and / or the addition of the light-emitting diode(s) between the lateral face 13 of the second lighting device and the first line 5, the homogeneity of the interior lighting of a motor vehicle is therefore considerably improved.

[0037] For example, said at least one light-emitting diode 15 arranged between said side face 13 and the first line 5 shows a rectangular shape. Said at least one light-emitting diode 15 can therefore be inclined between an angle ranging from 45° to 90° relative to the direction of the second line 11, or between an angle ranging from 50° to 85°, or between an angle ranging from 55° to 80°, or between an angle ranging from 60° to 75°.

[0038] For example, said at least one light-emitting diode 15 arranged between said lateral face 13 and the first line 5 shows a rectangular shape with a first length and a first width, said first length being opposite the interior trim, more particularly with the alcove presented by the front end of the interior trim.

[0039] For example, the second series 9 of light-emitting diodes comprises a first subset of one or more diodes and a second subset of one or more diodes, the first subset being arranged between said lateral face 13 and the first line 5 and the second subset being arranged following the first subset from the first line 5 in the opposite direction to said lateral face 13, and the diode(s) of the first subset have a rectangular shape with a first length and a first width with the first length facing the interior trim and the diode(s) of the second subset have a rectangular shape with a second length and a second width with the second length arranged parallel to the dashboard.The lighting of the interior trim, more particularly of the alcove presented by the front end of the interior trim, as well as of the dashboard is thus optimized.

[0040] For example, the diodes of the first series 3 of light-emitting diodes are rectangular in shape with a third length and a third width, said third length being arranged parallel to the interior trim. The illumination of the interior trim is thus optimized.

[0041] This example of configuration is visible in [Fig.2], where the light-emitting diode 15 shows a rectangular shape with a first length, and which is inclined at 90° relative to the direction of the second line (not drawn in [Fig.2]). The longest side of this diode is then opposite the interior trim, more particularly the alcove presented by the front end of the interior trim, which makes it possible to increase the supply of light intensity necessary to reduce, or even eliminate, the shadow zone when the front side opening is in the closed position. The other light-emitting diodes of the second series 9 of light-emitting diodes (forming the second sub-assembly) are also rectangular in shape, with their length arranged parallel to the dashboard to optimize its lighting.

[0042] With a view to further strengthening the homogeneity of the interior lighting of a motor vehicle, the second lighting device 7 may further comprise a lens 17 at the lateral face 13 of said second lighting device. Placing a lens 17 at the lateral face 13 of the second lighting device makes it possible to direct the light beam coming from said second lighting device 7 at the interior trim, more particularly at the alcove presented by the front end of the interior trim. Preferably, said lens 17 is a diverging lens, which has the effect of diverging the light beam coming from the second lighting device 7 and therefore of forming a light spot which will extend over the interior trim, more particularly over the alcove.

[0043] As the second lighting device 7 is mounted on a support 19 adjoining the dashboard, said support 19 may advantageously have an extension 21 extending longitudinally along the interior trim to a front end of the first lighting device 1 when the front side opening is in the closed position, said extension 21 having at least one side wall 23 where a surface 25 capable of reflecting light, namely a reflector, is arranged opposite said interior trim, more particularly with the alcove presented by the front end of the interior trim. For example, the extension 21 of the support extends longitudinally along the interior trim from the rear end of the support 19 to a front end of the first lighting device 1 when the front side opening is in the closed position.Thus, the surface 25 capable of reflecting the light arranged opposite said interior trim makes it possible to amplify the lighting at the level of the interior trim.

[0044] Preferably, the support 19 is made of plastic material and the second lighting device 7 is fixed to said support by means of a welding point. For example, the welding point requires a plastic rod and / or a plastic die, which makes it possible to carry out a plastic welding operation.

[0045] For example, the support 19 has at least one leg 27. The leg(s) 27 may include one or more openings 29, through which the wiring necessary for the operation of the second lighting device 7 may be inserted. The opening(s) 29 may also serve to lighten the support 19.

[0046] Preferably, said extension 21 of the support has at least one recess 31. This makes it possible to lighten the extension of the support.

[0047] Preferably, said extension of the support has at least one channel 33 configured to receive at least one cable, for example a cable necessary for the first lighting device 1 and / or the second lighting device 7.

[0048] For example, the surface 25 capable of reflecting light is glued and / or snapped onto said at least one side wall 23 of the extension 21 of the support.

[0049] For example, the surface 25 capable of reflecting light is a piece of metal. Preferred reliably, the surface 25 capable of reflecting light is made of aluminum. For example, the surface 25 capable of reflecting light is made of brushed aluminum.

[0050] Preferably, the first lighting device 1 and / or the second lighting device 7 each comprise a light diffuser. This can be glued and / or snapped onto the lighting device. Advantageously, the light-emitting diode(s) of the first series 3 of light-emitting diodes and / or of the second series 9 of light-emitting diodes are in the corresponding light diffuser. Advantageously, said at least one light-emitting diode 15 of said second lighting device 7 arranged between said lateral face 13 and the first line 5 is also in the light diffuser comprised by the second lighting device 7.

[0051] For example, the light diffuser is made of transparent plastic, such as polycarbonate, milky polycarbonate and / or polymethyl methacrylate (PMMA), preferably milky polycarbonate and / or polymethyl methacrylate (PMMA).

[0052] In a preferred configuration of the invention, the subject of the invention is a motor vehicle showing a front side opening, and comprising a passenger compartment with a dashboard and an interior trim mounted on the front side opening, the passenger compartment further comprising a first lighting device 1 secured to said interior trim with a first series 3 of light-emitting diodes aligned along a first line 5 and a second lighting device 7 secured to the dashboard with a second series 9 of light-emitting diodes aligned along a second line 11, said second lighting device 7 showing at least one lateral face 13 opposite said interior trim.The motor vehicle is remarkable in that the second lighting device 7 comprises at least one light-emitting diode 15 arranged between said lateral face 13 and the first line 5, in that the second lighting device 7 further comprises a lens 17 at said lateral face 13 and in that the second lighting device 7 is mounted on a support 19 adjoining the dashboard, said support 19 having an extension 21 extending longitudinally along the interior trim to a front end of the first lighting device 1 when the front side opening is in the closed position, said extension 21 having at least one side wall 23 where a surface 25 capable of reflecting light is arranged opposite said interior trim, more particularly with the alcove presented by the front end of the interior trim.

[0053] In this preferred configuration, there is both one or more light-emitting diodes 15 located at the end of the second lighting device 7 secured to the dashboard to provide intensity to the lighting directed towards the interior trim, more particularly at the level of the alcove, a lens 17 to direct the entire light beam coming from said second lighting device 7 and a surface 25 capable of reflecting the light arranged opposite said interior trim in order to further amplify the lighting.

Claims

Claims

1. Motor vehicle showing a front side opening, and comprising a passenger compartment with a dashboard and an interior trim mounted on the front side opening, the passenger compartment further comprising a first lighting device (1) secured to said interior trim with a first series (3) of light-emitting diodes aligned along a first line (5) and a second lighting device (7) secured to the dashboard with a second series (9) of light-emitting diodes aligned along a second line (11), said second lighting device (7) showing at least one lateral face (13) facing said interior trim, said motor vehicle is characterized in that the second lighting device (7) comprises at least one light-emitting diode (15) arranged between said lateral face (13) and the first line (5).

2. Vehicle according to claim 1, characterized in that the second lighting device (7) further comprises a lens (17) at said lateral face (13); preferably, said lens (17) is a diverging lens.

3. Vehicle according to claim 1 or 2, characterized in that said at least one light-emitting diode (15) arranged between said lateral face (13) and the first line (5) shows a rectangular shape and is inclined between an angle ranging from 45° to 90° relative to the direction of the second line (11) and / or in that said at least one light-emitting diode (15) arranged between said lateral face (13) and the first line (5) shows a rectangular shape with a first length and a first width, said first length being opposite the interior trim.

4. Vehicle according to one of claims 1 to 3, characterized in that the diodes of the second series (9) of light-emitting diodes are rectangular in shape with a second length and a second width, said second length being arranged parallel to the dashboard.

5. Vehicle according to one of claims 1 to 4, characterized in that the second lighting device (7) is mounted on a support (19) adjoining the dashboard, said support (19) having an extension (21) extending longitudinally along the interior trim to a front end of the first lighting device (1) when the front side opening is in the closed position, said extension (21) having at least one side wall (23) where a surface (25) capable of reflecting light is arranged opposite said interior trim.

6. Vehicle according to claim 5, characterized in that the support (19) is made of plastic material and in that the second lighting device (7) is fixed to said support (19) by means of a welding point.

7. Vehicle according to claim 5 or 6, characterized in that said extension (21) of the support has at least one recess (31) and / or in that said extension (21) of the support has at least one channel (33) configured to receive at least one cable.

8. Vehicle according to one of claims 5 to 7, characterized in that the surface (25) capable of reflecting light is glued and / or snapped onto said at least one side wall (23) of the extension (21) of the support.

9. Vehicle according to one of claims 5 to 8, characterized in that the surface (25) capable of reflecting light is a piece of metal; preferably, aluminum.

10. Vehicle according to one of claims 1 to 9, characterized in that the first lighting device (1) and / or the second lighting device (7) each comprise a light diffuser; preferably, the light diffuser is made of transparent plastic.

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