EP2598793B1 - Optical module of an illuminating and/or signalling device of a motor vehicle - Google Patents
Optical module of an illuminating and/or signalling device of a motor vehicle Download PDFInfo
- Publication number
- EP2598793B1 EP2598793B1 EP11738199.6A EP11738199A EP2598793B1 EP 2598793 B1 EP2598793 B1 EP 2598793B1 EP 11738199 A EP11738199 A EP 11738199A EP 2598793 B1 EP2598793 B1 EP 2598793B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- bending element
- reflector
- module according
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003287 optical effect Effects 0.000 title claims description 70
- 230000011664 signaling Effects 0.000 title claims description 18
- 239000002184 metal Substances 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims 15
- 230000006870 function Effects 0.000 description 15
- 238000001816 cooling Methods 0.000 description 10
- 238000000465 moulding Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009131 signaling function Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/19—Attachment of light sources or lamp holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
- F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/255—Lenses with a front view of circular or truncated circular outline
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/29—Attachment thereof
- F21S41/295—Attachment thereof specially adapted to projection lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/36—Combinations of two or more separate reflectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/39—Attachment thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/47—Attachment thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/42—Forced cooling
- F21S45/43—Forced cooling using gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/49—Attachment of the cooling means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/36—Combinations of two or more separate reflectors
- F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
- F21W2102/19—Arrangement or contour of the emitted light for regions other than high beam or low beam for curves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/30—Fog lights
Definitions
- the present invention relates to an optical module of a lighting and / or signaling device of a motor vehicle.
- the aim of the invention is to provide an optical module for a lighting and / or signaling device which overcomes the aforementioned drawbacks and improves the optical modules known from the prior art.
- the invention proposes an optical module of simple structure and in which the chains of dimensions are also simple.
- the optical module for the lighting and / or signaling device of a motor vehicle comprises all the characteristics of claim 1.
- the optical module can include a holder, an optical lens, and a heat exchanger.
- the optical lens and the exchanger thermal are attached to said support and the support connects the optical lens to the heat exchanger.
- the support directly supports the lens and directly supports the heat exchanger.
- the support may be intended to be mounted directly or indirectly on the housing of the lighting and / or signaling device and inside this housing.
- the support can also support a fan and / or at least one light reflector and / or a bender and / or an air channeling means.
- the support directly supports the fan and / or the at least one light reflector and / or the bender and / or the air ducting means.
- the support may comprise means for positioning the optical lens and / or the fan and / or the at least one light reflector and / or the bender and / or the heat exchanger, these means cooperating with means positioning provided on the optical lens and / or on the fan and / or on the at least one light reflector and / or on the bender and / or on the heat exchanger.
- the optical module can include a first and a second light source intended to provide two distinct lighting and / or signaling functions.
- the first and second sources may together be intended to provide a high beam type lighting function and the second source alone may be intended to provide a low beam type lighting function.
- the optical module may include a light source intended to provide an anti-fog function.
- the support may be suitable for being mounted in rotation in a housing of a lighting and / or signaling device of a motor vehicle.
- a lighting and / or signaling device of a motor vehicle may be suitable for being mounted in rotation in a housing of a lighting and / or signaling device of a motor vehicle.
- the optical module may comprise a base intended to be fixed to the housing of the lighting and / or signaling device of the motor vehicle and comprising first articulation means intended to be secured to the support so as to allow the support to rotate relative to the support. to the housing.
- the support may comprise a tenon intended to cooperate with an orifice in the base, for example a tenon at the top of the support and one below, the axis passing through these tenons corresponding to the axis of rotation of the module by compared to the case.
- the base may include an operating mechanism for orienting the support relative to the housing.
- the base may comprise a drive mechanism, from which exits a drive shaft cooperating with an orifice in the module, preferably in the support, so as to drive the support in rotation.
- the support can be indirectly connected to the base by an intermediate piece, for example a frame.
- the support can then include fixing lugs fixed to the frame.
- the frame comprises in this case the means cooperating with the first articulation means of the base, for example a tenon at the top and an orifice at the bottom, the tenon rotating in the upper orifice of the base and the orifice receiving the drive axis.
- the optical lens can be positioned and fixed to the holder in the front part of the latter and the heat exchanger can be positioned and fixed to the holder below the latter.
- the optical module can include a first and a second light source positioned and fixed on the heat exchanger.
- the optical module may include a first reflector positioned relative to the support and attached to the support, under the support, between the support and the heat exchanger.
- the optical module may include a second reflector positioned relative to the support and fixed to the support, under the support and the heat exchanger.
- the optical module may include a folder positioned and secured to the support.
- the optical module can comprise a fan positioned and fixed on the support, for example above the support and / or behind the latter.
- the lighting and / or signaling device may comprise a housing in which the support is mounted.
- the invention also relates to a motor vehicle comprising a lighting and / or signaling device as defined above.
- An optical module for a lighting and / or signaling device of a motor vehicle can comprise a reflector associated with a light source, in particular comprising an LED, to reflect light. light coming from this light source, this reflector being formed on a part, in particular monolithic, namely made in one piece, provided with a cooling opening for circulation of cooling air.
- the module comprises a heat exchanger provided with one or more cooling fins extending at least partially into the cooling opening and, where appropriate, said part on which the reflector is formed comprises a rear wall, in particular rounded. , partially enveloping this or these fins.
- the reflector comprises a wall, in particular convex, arranged to serve to guide the air leaving the cooling opening.
- the module may include a support, an optical lens and a heat exchanger, and the optical lens and the heat exchanger are both carried by said support.
- the support is advantageously made in one piece, thus being monolithic, obtained in particular by molding a plastic material.
- the support has a recess for at least partially receiving a reflector.
- the module comprises first and second reflectors, in particular each associated with at least one dedicated light source, characterized in that one of the reflectors forms with the support an enclosure receiving the other of the reflectors, making it possible in particular to have a relatively compact module.
- the support comprises at least one fixing arm, in particular two fixing arms, arranged to allow the fixing, in particular by gluing, of the lens, this or these arm or these extending in projection towards the front of the support, this or these arm or these arms preferably connecting to an annular portion of the support.
- the lens advantageously comprises at least one edge, in particular two opposite edges, in particular substantially rectilinear (s), this or these edges being arranged to be fixed to the arm or arms of the support.
- the lens may include at least one fixing tab for fixing the lens on the support, this tab being formed in particular on the rectilinear edge, this tab being able to cooperate in particular with one or more pins on the fixing bars of the support.
- At least one of the first and second reflectors is made in one piece.
- the reflector comprises, where appropriate, two reflecting surfaces each associated with a light source.
- This folder is fixed in the module immobile relative to the light source.
- the folder is provided with lower and upper reflecting faces, preferably joining together forming a bevel having an acute angle, this angle being in particular less than 15 °, or even less than 5 °, or even less than 2 ° or even less than 1. °. This makes it possible in particular to obtain improved optical performance, in particular as regards a cutoff in the light beam.
- these faces of the folder are locally flat, and preferably these faces are not parallel to each other.
- the folder is formed on a monolithic part, namely made in one piece, preferably in metal to ensure in particular better thermal resistance against the heat coming from the light source (s) of the device or from the sun.
- the folder has a cut edge, preferably with a step, to make a cut in the beam.
- the folder comprises at least one machined reflecting face.
- the folder is formed on a part arranged at a non-zero distance from the heat exchanger.
- the folder comprises front and rear edges, preferably substantially parallel, and in particular substantially rectilinear, the one or more reflecting faces of the folder extending between these edges, which are in particular perpendicular to the optical axis of the module.
- the folder comprises at least one fixing lug, in particular lateral, arranged to allow it to be fixed to the support.
- the folder comprises two fixing ears at the opposite ends of the folder, these ears arranged in particular at the ends of the folder in the direction of the greatest dimension.
- the direction of the largest dimension of the folder is advantageously substantially perpendicular to an optical axis of the module.
- the optical module 1 mainly comprises a support 2, an optical lens 3, a fan 5, a heat exchanger, such as a radiator 4, a first reflector 6, a second reflector 7 and a bender 8.
- the support comprises means 30 for positioning and for fixing the optical lens 3 on the support. These means cooperate with means 31 for positioning and fixing provided on the optical lens 3.
- the optical lens is thus supported by the support.
- the optical lens is directly supported by the support.
- the support comprises means 32 for positioning and for fixing the radiator 4 on the support. These means cooperate with means 33 for positioning and fixing provided on the radiator.
- the radiator is thus supported by the support. Preferably, the radiator is supported directly by the support.
- the support comprises means 34 for positioning and for fixing the fan 5 on the support. These means cooperate with means 35 for positioning and fixing provided on the fan.
- the fan is thus supported by the support. Preferably, the fan is supported directly by the support.
- the support comprises means 36 for positioning and for fixing the first reflector 6 on the support. These means 37 cooperate with positioning and fixing means provided on the first reflector 6. Alternatively, the support may only have means for fixing the first reflector 6 on the support. Positioning means may be provided on the first reflector to cooperate with positioning means on the radiator or on a first light source, so as to position the first reflector relative to the first light source.
- the first reflector is thus supported by the support. Preferably, the first reflector is directly supported by the support. Alternatively again, the first reflector can be positioned on the radiator and supported by the radiator.
- the support comprises means 38 for positioning and for fixing the second reflector 7 on the support. These means cooperate with means 39 for positioning and fixing provided on the second reflector 7. Alternatively, the support may only have means for fixing the second reflector 7 on the support. Positioning means may be provided on the second reflector to cooperate with positioning means on the radiator or on a second light source, so as to position the second reflector relative to the second light source.
- the second reflector is thus supported by the support. Preferably, the second reflector is supported directly by the support. Alternatively again, the second reflector can be positioned on the radiator and supported by the radiator.
- the support comprises means for positioning and for fixing the folder 8 on the support. These means cooperate with positioning and fixing means provided on the folder 8. Alternatively, the support may only have means for fixing the folder 8 on the support. Positioning means may be provided on the folder to cooperate with positioning means on the radiator or on the first light source, so as to position the folder relative to the first source of light.
- the folder is thus supported by the support. Preferably, the folder is supported directly by the support. Alternatively again, the folder can be positioned on the radiator and supported by the radiator.
- the support comprises means 38 for positioning and for fixing an air flow guide 13 on the support. These means cooperate with means 39 for positioning and fixing provided on the guide 13.
- the air flow guide may be integral with the second reflector, as on the figures 1 to 5 .
- the air guide is thus supported by the support.
- the guide is supported directly by the support.
- the first light source comprises a first light emitting diode mounted on a first printed circuit 9 and a second light emitting diode mounted on a second printed circuit 10.
- These printed circuits 9 and 10 are preferably positioned and fixed on the radiator 4.
- the light beams emitted by the first source are reflected by a reflecting surface 11 of the first reflector before being partially reflected by the bender 8 and deflected by the optical lens 3.
- These different elements constitute a first optical system making it possible to generate a light beam with low beam type cut-off.
- the reflecting surface 11 has a first portion in the shape of an ellipsoid and a second portion in the shape of an ellipsoid, the first diode being at least substantially at the first focus of the first ellipsoid portion, the second diode being at least substantially at the first focal point of the second ellipsoidal portion and the folder located at least substantially at the level of the second focal points of the first and second ellipsoidal portions.
- the folder is preferably also located at the focal point of the optical lens 3.
- the second light source comprises a third light emitting diode mounted on a third printed circuit 19.
- This printed circuit 19 is preferably positioned and fixed on the radiator 4.
- the light beams emitted by the second source are reflected by a reflecting surface. 12 of the second reflector 7 before being deflected by the optical lens 3.
- These different elements constitute a second optical system making it possible to generate a complementary part of the light beam generated by the first optical system so that the first and second beams complementarily produce a high beam type light beam.
- the reflecting surface 12 is in the shape of an ellipsoid.
- the third diode is located at least substantially at the first focal point of the reflecting surface 12 and the focal point of the optical lens 3 is located at least substantially at the level of the second focal point of the reflecting surface 12.
- the various components of the optical systems namely: light sources, reflectors, bender and optical lens are positioned precisely with respect to each other.
- the chain of dimensions positioning the light sources with respect to the reflectors or with respect to the optical lens pass through the radiator and the support.
- the various components of the optical systems are supported by the support indirectly or, preferably, directly.
- the fan makes it possible to create an air flow 22 flowing between the fins 18 of the radiator and channeled by a guide 13 to optimize the heat exchange between the air and the radiator.
- the various printed circuits carrying the light-emitting diodes are fixed to the radiator and positioned relative to the radiator. They are therefore indirectly supported by the support 2, the radiator being fixed to the support.
- the support also has fixing means allowing it to be fixed to a structure of the motor vehicle.
- the fixing means allow it to be fixed in a housing of a lighting and / or signaling device, this housing also having means for fixing to the structure of the motor vehicle.
- the support is preferably produced by molding. It is for example made of metal or plastic, in particular composite.
- a second embodiment of the optical module according to the invention is described below with reference to figures 4 and 5 . It differs from the first embodiment only in the structure of the support 2.
- the support 2 comprises first articulation means 2c which cooperates with second articulation means on a base 2b. intended to be fixed in a housing of the lighting and / or signaling device.
- the base forms for example a frame in which the support is articulated. This articulation is for example carried out along a vertical axis, for example by a pivot connection.
- a function of modifying the direction of the optical axis of the lighting and / or signaling device can be performed when the motor vehicle is negotiating a curve.
- the base can also include a maneuvering means such as a geared motor making it possible to control the orientation of the support and therefore that of the optical module.
- the support may comprise as first articulation means a tenon (not shown), for example a tenon at the top of the support and a tenon below, the axis passing through these tenons corresponding to the axis of rotation of the module. relative to the housing.
- the base may include, as second articulation means, orifices intended to cooperate with the tenons.
- the base 2b comprises a drive mechanism, from which exits a drive shaft 2d cooperating with an orifice in the module, preferably in the support 2, so as to drive the support 2 in rotation.
- the support 2 can be indirectly connected to the base 2b by an intermediate part (not shown for the sake of clarity), for example a frame.
- the support can then comprise fixing lugs 2e fixed to the frame.
- the frame then comprises means cooperating with the second articulation means of the base, for example a tenon at the top and an orifice at the bottom, the tenon rotating in the upper orifice 2c of the base and the orifice receiving the '2d drive axis.
- the term “supporting a component” is understood to mean the action of taking up the forces exerted on the component and of transmitting them to the structure of the motor vehicle, the forces being in particular those, at a distance, due to forces. acceleration like weight.
- a part supporting a component directly takes up the forces exerted on the component and transmits them to the structure of the vehicle.
- automotive that is to say that there is no intermediate part transmitting the forces between the component and the part.
- an intermediate part can be provided if its only function is an interface function. In the latter case, despite the intermediate part, it is considered that the part directly supports the component.
- the optical module performs a first low beam function and a second high beam function.
- the optical module according to the invention can perform any other function replacing one and / or the other of the first and second functions.
- the optical module according to the invention can also provide only a single lighting and / or signaling function, such as an anti-fog function.
- the term “at least appreciably” used with different adjectives means: “ adjective ” or “appreciably adjective ”, for example “at least appreciably perpendicular” means “perpendicular” or “appreciably perpendicular”.
- the support 2 is made in one piece, the support being a monolithic part.
- This support 2 is for example made by molding in plastic material.
- the second reflector 7 is formed on a part, in particular monolithic, namely made in one piece, provided with a cooling opening 50 for circulation of cooling air, as illustrated in particular on the figures 1 and 2 .
- the heat exchanger 4 is provided with several cooling fins 51 extending opposite the cooling opening 50.
- the reflector 7 comprises a domed wall 52 arranged to serve to guide the air leaving the cooling opening 50.
- the support 2 has a recess 55 to receive the reflector 6, as can be seen on the figure. figure 3 for example.
- the reflector 7 forms with the support 2 an enclosure 56 receiving the reflector 6, making it possible in particular to have a relatively compact module (see figure 3 ).
- the support 2 comprises two fixing arms 60 arranged to allow the fixing, in particular by gluing, of the lens 3, these arms 60 projecting towards the front of the support 2.
- the lens 3 has two opposite rectilinear edges 63 arranged to be fixed on the arms 60 of the support 2 (see figure 1 ).
- the lens comprises, on each edge 63, a fixing tab 65 for fixing the lens 3 on the support 2, this tab 65 being able to cooperate with one or more pins 66 on the fixing arm 60 of the support (see figure 1 ).
- Each of the first and second reflectors 6 and 7 is made in one piece.
- the reflector 6 comprises two reflecting surfaces each associated with a light source.
- the folder 8 is made on a metal part, preferably a monolithic part.
- the folder 8 is provided with lower 70 and upper 71 reflecting faces (see figure 3 in particular), joining together forming a bevel having an acute angle, this angle being in particular less than 15 °, or even less than 5 °, or even less than 2 ° or even less than 1 °.
- the folder 8 is formed on a monolithic part, namely made in one piece, preferably in metal to ensure in particular better thermal resistance against the heat coming from the light source (s) of the device or from the sun.
- Folder 8 has a cut edge 74, with a step 75 (see figure 1 ).
- the folder 8 is formed on a part arranged at a non-zero distance from the heat exchanger 4.
- the folder 8 has front and rear edges 78, preferably substantially parallel, and in particular substantially rectilinear, the reflecting faces 70 and 71 of the folder 8 extending between these edges 78, which are in particular perpendicular to the optical axis x of the module.
Description
La présente invention concerne un module optique d'un dispositif d'éclairage et/ou de signalisation d'un véhicule automobile.The present invention relates to an optical module of a lighting and / or signaling device of a motor vehicle.
Il est connu, par exemple des documents
Le but de l'invention est de fournir un module optique de dispositif d'éclairage et/ou de signalisation remédiant aux inconvénients précédemment mentionnés et améliorant les modules optiques connus de l'art antérieur. En particulier, l'invention propose un module optique de structure simple et dans lequel les chaînes de cotes sont également simples.The aim of the invention is to provide an optical module for a lighting and / or signaling device which overcomes the aforementioned drawbacks and improves the optical modules known from the prior art. In particular, the invention proposes an optical module of simple structure and in which the chains of dimensions are also simple.
Selon l'invention, le module optique de dispositif d'éclairage et/ou de signalisation d'un véhicule automobile, comporte toutes les caractéristiques de la revendication 1.According to the invention, the optical module for the lighting and / or signaling device of a motor vehicle comprises all the characteristics of
Le module optique peut comprendre un support, une lentille optique et un échangeur thermique. La lentille optique et l'échangeur thermique sont fixés audit support et le support relie la lentille optique à l'échangeur thermique. De préférence, le support supporte directement la lentille et supporte directement l'échangeur thermique. Ainsi, il est possible de réaliser un module optique simple et facile à assembler, les chaînes de cotes des différents composants étant elles aussi simples.The optical module can include a holder, an optical lens, and a heat exchanger. The optical lens and the exchanger thermal are attached to said support and the support connects the optical lens to the heat exchanger. Preferably, the support directly supports the lens and directly supports the heat exchanger. Thus, it is possible to produce an optical module that is simple and easy to assemble, the dimension chains of the various components also being simple.
Le support peut être destiné à être monté directement ou indirectement sur le boîtier du dispositif d'éclairage et/ou de signalisation et à l'intérieur de ce boîtier.The support may be intended to be mounted directly or indirectly on the housing of the lighting and / or signaling device and inside this housing.
Le support peut également supporter un ventilateur et/ou au moins un réflecteur de lumière et/ou une plieuse et/ou un moyen de canalisation d'air. De préférence, le support supporte directement le ventilateur et/ou l'au moins un réflecteur de lumière et/ou la plieuse et/ou le moyen de canalisation d'air. Ainsi, le module optique est encore simplifié et son assemblage est encore facilité.The support can also support a fan and / or at least one light reflector and / or a bender and / or an air channeling means. Preferably, the support directly supports the fan and / or the at least one light reflector and / or the bender and / or the air ducting means. Thus, the optical module is further simplified and its assembly is further facilitated.
Le support peut comprendre des moyens de positionnement de la lentille optique et/ou du ventilateur et/ou de l'au moins un réflecteur de lumière et/ou de la plieuse et/ou de l'échangeur thermique, ces moyens coopérant avec des moyens de positionnement prévus sur la lentille optique et/ou sur le ventilateur et/ou sur l'au moins un réflecteur de lumière et/ou sur la plieuse et/ou sur l'échangeur thermique.The support may comprise means for positioning the optical lens and / or the fan and / or the at least one light reflector and / or the bender and / or the heat exchanger, these means cooperating with means positioning provided on the optical lens and / or on the fan and / or on the at least one light reflector and / or on the bender and / or on the heat exchanger.
Le module optique peut comprendre une première et une deuxième sources de lumière destinées à assurer deux fonctions distinctes d'éclairage et/ou de signalisation. Les première et deuxième sources peuvent ensemble être destinées à assurer une fonction d'éclairage de type feu de route et la deuxième source seule peut être destinée à assurer une fonction d'éclairage de type feu de croisement.The optical module can include a first and a second light source intended to provide two distinct lighting and / or signaling functions. The first and second sources may together be intended to provide a high beam type lighting function and the second source alone may be intended to provide a low beam type lighting function.
Le module optique peut comprendre une source de lumière destinée à assurer une fonction antibrouillard.The optical module may include a light source intended to provide an anti-fog function.
Le support peut être apte à être monté en rotation dans un boîtier de dispositif d'éclairage et/ou de signalisation d'un véhicule automobile.. Ainsi, il est possible d'orienter l'axe du module optique en fonction de courbes négociées par le véhicule.The support may be suitable for being mounted in rotation in a housing of a lighting and / or signaling device of a motor vehicle. Thus, it is possible to orient the axis of the optical module as a function of curves negotiated by the vehicle.
Le module optique peut comprendre une embase destinée à être fixée au boîtier de dispositif d'éclairage et/ou de signalisation du véhicule automobile et comprenant des premiers moyens d'articulation destinés à être solidarisés au support de sorte à permettre la rotation du support par rapport au boîtier. Par exemple, le support peut comprendre un tenon destiné à coopérer avec un orifice de l'embase, par exemple un tenon au sommet du support et un en dessous, l'axe passant par ces tenons correspondant à l'axe de rotation du module par rapport au boîtier.The optical module may comprise a base intended to be fixed to the housing of the lighting and / or signaling device of the motor vehicle and comprising first articulation means intended to be secured to the support so as to allow the support to rotate relative to the support. to the housing. For example, the support may comprise a tenon intended to cooperate with an orifice in the base, for example a tenon at the top of the support and one below, the axis passing through these tenons corresponding to the axis of rotation of the module by compared to the case.
L'embase peut comprendre un mécanisme de manœuvre destiné à orienter le support relativement au boîtier. Selon un exemple de réalisation, l'embase peut comprendre un mécanisme d'entraînement, d'où sort un axe d'entraînement coopérant avec un orifice du module, préférentiellement du support, de manière à entraîner le support en rotation. En variante, et tel qu'illustré, le support peut être indirectement relié à l'embase par une pièce intermédiaire, par exemple un cadre. Le support peut alors comprendre des pattes de fixation fixées au cadre. Le cadre comprend dans ce cas les moyens coopérant avec les premiers moyens d'articulation de l'embase, par exemple un tenon en haut et un orifice en bas, le tenon tournant dans l'orifice supérieur de l'embase et l'orifice recevant l'axe d'entraînement.The base may include an operating mechanism for orienting the support relative to the housing. According to an exemplary embodiment, the base may comprise a drive mechanism, from which exits a drive shaft cooperating with an orifice in the module, preferably in the support, so as to drive the support in rotation. As a variant, and as illustrated, the support can be indirectly connected to the base by an intermediate piece, for example a frame. The support can then include fixing lugs fixed to the frame. The frame comprises in this case the means cooperating with the first articulation means of the base, for example a tenon at the top and an orifice at the bottom, the tenon rotating in the upper orifice of the base and the orifice receiving the drive axis.
La lentille optique peut être positionnée et fixée au support dans la partie avant de ce dernier et l'échangeur thermique peut être positionné et fixé au support sous ce dernier.The optical lens can be positioned and fixed to the holder in the front part of the latter and the heat exchanger can be positioned and fixed to the holder below the latter.
Le module optique peut comprendre une première et une deuxième source lumineuse positionnées et fixées sur l'échangeur thermique.The optical module can include a first and a second light source positioned and fixed on the heat exchanger.
Le module optique peut comprendre un premier réflecteur positionné relativement au support et fixé au support, sous le support, entre le support et l'échangeur thermique.The optical module may include a first reflector positioned relative to the support and attached to the support, under the support, between the support and the heat exchanger.
Le module optique peut comprendre un deuxième réflecteur positionné relativement au support et fixé au support, sous le support et l'échangeur thermique.The optical module may include a second reflector positioned relative to the support and fixed to the support, under the support and the heat exchanger.
Le module optique peut comprendre une plieuse positionnée et fixée sur le support.The optical module may include a folder positioned and secured to the support.
Le module optique peut comprendre un ventilateur positionné et fixé sur le support, par exemple au dessus du support et/ou en arrière de celui-ci.The optical module can comprise a fan positioned and fixed on the support, for example above the support and / or behind the latter.
Le dispositif d'éclairage et/ou de signalisation peut comprendre un boîtier dans lequel est monté le support.The lighting and / or signaling device may comprise a housing in which the support is mounted.
L'invention porte également sur un véhicule automobile comprenant un dispositif d'éclairage et/ou de signalisation tel que défini précédemment.The invention also relates to a motor vehicle comprising a lighting and / or signaling device as defined above.
Un module optique de dispositif d'éclairage et/ou de signalisation d'un véhicule automobile, peut comprendre un réflecteur associé à une source de lumière, notamment comportant une LED, pour réfléchir de la lumière provenant de cette source de lumière, ce réflecteur étant formé sur une pièce, notamment monolithique, à savoir réalisée d'un seul tenant, pourvue d'une ouverture de refroidissement pour une circulation d'air de refroidissement.An optical module for a lighting and / or signaling device of a motor vehicle can comprise a reflector associated with a light source, in particular comprising an LED, to reflect light. light coming from this light source, this reflector being formed on a part, in particular monolithic, namely made in one piece, provided with a cooling opening for circulation of cooling air.
De préférence, le module comporte un échangeur thermique pourvu d'une ou plusieurs ailettes de refroidissement s'étendant au moins partiellement dans l'ouverture de refroidissement et le cas échéant, ladite pièce sur laquelle est formé le réflecteur comporte une paroi arrière, notamment arrondie, enveloppant partiellement ce ou ces ailettes.Preferably, the module comprises a heat exchanger provided with one or more cooling fins extending at least partially into the cooling opening and, where appropriate, said part on which the reflector is formed comprises a rear wall, in particular rounded. , partially enveloping this or these fins.
Dans un exemple de mise en oeuvre de l'invention, le réflecteur comporte une paroi, notamment bombée, agencée pour servir au guidage de l'air sortant de l'ouverture de refroidissement.In an exemplary implementation of the invention, the reflector comprises a wall, in particular convex, arranged to serve to guide the air leaving the cooling opening.
Le module peut comporter un support, une lentille optique et un échangeur thermique, et la lentille optique et l'échangeur thermique sont portés tous les deux par ledit support.The module may include a support, an optical lens and a heat exchanger, and the optical lens and the heat exchanger are both carried by said support.
Le support est avantageusement réalisé d'un tenant, étant ainsi monolithique, obtenu notamment par moulage d'une matière plastique.The support is advantageously made in one piece, thus being monolithic, obtained in particular by molding a plastic material.
Si on le souhaite, le support comporte un renfoncement pour recevoir au moins partiellement un réflecteur.If desired, the support has a recess for at least partially receiving a reflector.
Dans un exemple de mise en oeuvre de l'invention, le module comporte des premier et deuxième réflecteurs, notamment chacun associé à au moins une source de lumière dédiée, caractérisé par le fait que l'un des réflecteurs forme avec le support une enceinte recevant l'autre des réflecteurs, permettant notamment d'avoir un module relativement compact.In an exemplary implementation of the invention, the module comprises first and second reflectors, in particular each associated with at least one dedicated light source, characterized in that one of the reflectors forms with the support an enclosure receiving the other of the reflectors, making it possible in particular to have a relatively compact module.
Dans un exemple de mise en oeuvre de l'invention, le support comporte au moins un bras de fixation, notamment deux bras de fixation, agencés pour permettre la fixation, notamment par collage, de la lentille, ce ou ces bras s'étendant en saillie vers l'avant du support, ce ou ces bras se raccordant de préférence à une portion annulaire du support.In an exemplary embodiment of the invention, the support comprises at least one fixing arm, in particular two fixing arms, arranged to allow the fixing, in particular by gluing, of the lens, this or these arm or these extending in projection towards the front of the support, this or these arm or these arms preferably connecting to an annular portion of the support.
La lentille comporte avantageusement au moins un bord, notamment deux bords opposés, notamment sensiblement rectiligne(s), ce ou ces bords étant agencés pour être fixés sur le ou les bras du support.The lens advantageously comprises at least one edge, in particular two opposite edges, in particular substantially rectilinear (s), this or these edges being arranged to be fixed to the arm or arms of the support.
La lentille peut comporter au moins une patte de fixation pour la fixation de la lentille sur le support, cette patte étant formée notamment sur le bord rectiligne, cette patte pouvant coopérer notamment avec un ou plusieurs picots sur le bars de fixation du support.The lens may include at least one fixing tab for fixing the lens on the support, this tab being formed in particular on the rectilinear edge, this tab being able to cooperate in particular with one or more pins on the fixing bars of the support.
Dans un exemple de mise en oeuvre de l'invention, l'un au moins des premier et deuxième réflecteurs est réalisé d'un seul tenant.In an exemplary implementation of the invention, at least one of the first and second reflectors is made in one piece.
Le réflecteur comporte, le cas échéant, deux surfaces réfléchissantes associées chacune à une source de lumière.The reflector comprises, where appropriate, two reflecting surfaces each associated with a light source.
L'invention a pour objet un module optique pour un dispositif d'éclairage et/ou de signalisation de véhicule automobile, notamment un projecteur lumineux, comportant :
- une source de lumière comportant notamment au moins une LED,
- un réflecteur agencé pour réfléchir de la lumière provenant de la source de lumière,
- une plieuse placée sur le trajet de lumière provenant du réflecteur et agencée pour réfléchir de la lumière provenant du réflecteur, cette plieuse étant réalisée de préférence sur une pièce métallique, de préférence une pièce monolithique.
- a light source comprising in particular at least one LED,
- a reflector arranged to reflect light from the light source,
- a folder placed on the path of light coming from the reflector and arranged to reflect light coming from the reflector, this folder preferably being carried out on a metal part, preferably a monolithic part.
Cette plieuse est fixée dans le module de manière immobile par rapport à la source de lumière.This folder is fixed in the module immobile relative to the light source.
La plieuse est pourvue de faces réfléchissantes inférieure et supérieure, de préférence se raccordant en formant un biseau ayant un angle aigu, cet angle étant notamment inférieur à 15°, ou encore inférieur à 5°, ou encore inférieur à 2° voire inférieur à 1°. Ceci permet notamment d'obtenir des performances optiques améliorées, notamment en ce qui concerne une coupure dans le faisceau de lumière.The folder is provided with lower and upper reflecting faces, preferably joining together forming a bevel having an acute angle, this angle being in particular less than 15 °, or even less than 5 °, or even less than 2 ° or even less than 1. °. This makes it possible in particular to obtain improved optical performance, in particular as regards a cutoff in the light beam.
Dans un exemple de mise en oeuvre de l'invention, ces faces de la plieuse sont localement planes, et de préférence ces faces sont non parallèles entre elles.In an exemplary implementation of the invention, these faces of the folder are locally flat, and preferably these faces are not parallel to each other.
La plieuse est formée sur une pièce monolithique, à savoir réalisée d'un seul tenant, de préférence en métal pour assurer notamment une meilleure résistance thermique contre la chaleur provenant du ou des sources de lumière du dispositif ou du soleil.The folder is formed on a monolithic part, namely made in one piece, preferably in metal to ensure in particular better thermal resistance against the heat coming from the light source (s) of the device or from the sun.
La plieuse présente un bord de coupure, de préférence avec une marche, pour faire une coupure dans le faisceau.The folder has a cut edge, preferably with a step, to make a cut in the beam.
Dans un exemple de mise en oeuvre de l'invention, la plieuse comporte au moins une face réfléchissante usinée.In an exemplary implementation of the invention, the folder comprises at least one machined reflecting face.
Le cas échéant, la plieuse est formée sur une pièce disposée à une distance non nulle de l'échangeur thermique.Where appropriate, the folder is formed on a part arranged at a non-zero distance from the heat exchanger.
La plieuse comprend des bords avant et arrière, de préférence sensiblement parallèles, et notamment sensiblement rectilignes, la ou les faces réfléchissantes de la plieuse s'étendant entre ces bords, lesquels sont notamment perpendiculaires à l'axe optique du module.The folder comprises front and rear edges, preferably substantially parallel, and in particular substantially rectilinear, the one or more reflecting faces of the folder extending between these edges, which are in particular perpendicular to the optical axis of the module.
La plieuse comporte au moins une oreille de fixation, notamment latérale, agencée pour permettre sa fixation sur le support. Selon l'invention, la plieuse comporte deux oreilles de fixation aux extrémités opposées de la plieuse, ces oreilles disposées notamment aux extrémités de la plieuse suivant la direction de la plus grande dimension.The folder comprises at least one fixing lug, in particular lateral, arranged to allow it to be fixed to the support. According to the invention, the folder comprises two fixing ears at the opposite ends of the folder, these ears arranged in particular at the ends of the folder in the direction of the greatest dimension.
La direction de la plus grande dimension de la plieuse est avantageusement sensiblement perpendiculaire à un axe optique du module.The direction of the largest dimension of the folder is advantageously substantially perpendicular to an optical axis of the module.
Le dessin annexé représente, à titre d'exemples, deux modes de réalisation d'un module optique d'un véhicule automobile selon l'invention.
- La
figure 1 est une vue éclatée d'un premier mode de réalisation d'un module optique selon l'invention. - La
figure 2 est une coupe longitudinale du premier mode de réalisation du module optique selon l'invention. - La
figure 3 est une section longitudinale du premier mode de réalisation du module optique selon l'invention. - La
figure 4 est une vue éclatée d'un deuxième mode de réalisation du module optique selon l'invention. - La
figure 5 est une vue en perspective du deuxième mode de réalisation du module optique selon l'invention.
- The
figure 1 is an exploded view of a first embodiment of an optical module according to the invention. - The
figure 2 is a longitudinal section of the first embodiment of the optical module according to the invention. - The
figure 3 is a longitudinal section of the first embodiment of the optical module according to the invention. - The
figure 4 is an exploded view of a second embodiment of the optical module according to the invention. - The
figure 5 is a perspective view of the second embodiment of the optical module according to the invention.
Un premier mode de réalisation d'un module optique 1 dispositif d'éclairage et/ou de signalisation est décrit ci-après en référence aux figures en 1 à 3. Dans cet exemple, le module optique de dispositif d'éclairage et/ou de signalisation est un module optique 1 à deux fonctions :
- une fonction d'éclairage de type feu de croisement, et
- une fonction d'éclairage de type feu de route.
- a low beam type lighting function, and
- a high beam type lighting function.
Le module optique 1 comprend principalement un support 2, une lentille optique 3, un ventilateur 5, un échangeur thermique, comme un radiateur 4, un premier réflecteur 6, un deuxième réflecteur 7 et une plieuse 8.The
Le support comprend des moyens 30 pour positionner et pour fixer la lentille optique 3 sur le support. Ces moyens coopèrent avec des moyens 31 de positionnement et de fixation prévus sur la lentille optique 3. La lentille optique est ainsi supportée par le support. De préférence, la lentille optique est supportée directement par le support.The support comprises means 30 for positioning and for fixing the
Le support comprend des moyens 32 pour positionner et pour fixer le radiateur 4 sur le support. Ces moyens coopèrent avec des moyens 33 de positionnement et de fixation prévus sur le radiateur. Le radiateur est ainsi supporté par le support. De préférence, le radiateur est supporté directement par le support.The support comprises means 32 for positioning and for fixing the
Le support comprend des moyens 34 pour positionner et pour fixer le ventilateur 5 sur le support. Ces moyens coopèrent avec des moyens 35 de positionnement et de fixation prévus sur le ventilateur. Le ventilateur est ainsi supporté par le support. De préférence, le ventilateur est supporté directement par le support.The support comprises means 34 for positioning and for fixing the
Le support comprend des moyens 36 pour positionner et pour fixer le premier réflecteur 6 sur le support. Ces moyens 37 coopèrent avec des moyens de positionnement et de fixation prévus sur le premier réflecteur 6. Alternativement, le support peut ne présenter que des moyens de fixation du premier réflecteur 6 sur le support. Des moyens de positionnement peuvent être prévus sur le premier réflecteur pour coopérer avec des moyens de positionnement sur le radiateur ou sur une première source de lumière, de sorte à positionner le premier réflecteur relativement à la première source de lumière. Le premier réflecteur est ainsi supporté par le support. De préférence, le premier réflecteur est supporté directement par le support. Alternativement encore, le premier réflecteur peut être positionné sur le radiateur et supporté par le radiateur.The support comprises means 36 for positioning and for fixing the
Le support comprend des moyens 38 pour positionner et pour fixer le deuxième réflecteur 7 sur le support. Ces moyens coopèrent avec des moyens 39 de positionnement et de fixation prévus sur le deuxième réflecteur 7. Alternativement, le support peut ne présenter que des moyens de fixation du deuxième réflecteur 7 sur le support. Des moyens de positionnement peuvent être prévus sur le deuxième réflecteur pour coopérer avec des moyens de positionnement sur le radiateur ou sur une deuxième source de lumière, de sorte à positionner le deuxième réflecteur relativement à la deuxième source de lumière. Le deuxième réflecteur est ainsi supporté par le support. De préférence, le deuxième réflecteur est supporté directement par le support. Alternativement encore, le deuxième réflecteur peut être positionné sur le radiateur et supporté par le radiateur.The support comprises means 38 for positioning and for fixing the second reflector 7 on the support. These means cooperate with
Le support comprend des moyens pour positionner et pour fixer la plieuse 8 sur le support. Ces moyens coopèrent avec des moyens de positionnement et de fixation prévus sur la plieuse 8. Alternativement, le support peut ne présenter que des moyens de fixation de la plieuse 8 sur le support. Des moyens de positionnement peuvent être prévus sur la plieuse pour coopérer avec des moyens de positionnement sur le radiateur ou sur la première source de lumière, de sorte à positionner la plieuse relativement à la première source de lumière. La plieuse est ainsi supportée par le support. De préférence, la plieuse est supportée directement par le support. Alternativement encore, la plieuse peut être positionnée sur le radiateur et supportée par le radiateur.The support comprises means for positioning and for fixing the folder 8 on the support. These means cooperate with positioning and fixing means provided on the folder 8. Alternatively, the support may only have means for fixing the folder 8 on the support. Positioning means may be provided on the folder to cooperate with positioning means on the radiator or on the first light source, so as to position the folder relative to the first source of light. The folder is thus supported by the support. Preferably, the folder is supported directly by the support. Alternatively again, the folder can be positioned on the radiator and supported by the radiator.
Le support comprend des moyens 38 pour positionner et pour fixer un guide 13 de flux d'air sur le support. Ces moyens coopèrent avec des moyens 39 de positionnement et de fixation prévus sur le guide 13. Alternativement, le guide de flux d'air peut être solidaire du deuxième réflecteur, comme sur les
De préférence, la première source de lumière comprend une première diode électroluminescente montée sur un premier circuit imprimé 9 et une deuxième diode électroluminescente montée sur un deuxième circuit imprimé 10. Ces circuits imprimés 9 et 10 sont de préférence positionnés et fixés sur le radiateur 4. Les faisceaux lumineux émis par la première source sont réfléchis par une surface réfléchissante 11 du premier réflecteur avant d'être partiellement réfléchis par la plieuse 8 et déviés par la lentille optique 3. Ces différents éléments constituent un premier système optique permettant de générer un faisceau lumineux à coupure de type feu de croisement. De préférence, la surface réfléchissante 11 présente une première portion en forme d'ellipsoïde et une deuxième portion en forme d'ellipsoïde, la première diode se trouvant au moins sensiblement au premier foyer de la première portion ellipsoïdale, la deuxième diode se trouvant au moins sensiblement au premier foyer de la deuxième portion ellipsoïdale et la plieuse se trouvant au moins sensiblement au niveau des deuxièmes foyers des première et deuxième portions ellipsoïdales. La plieuse se trouve de préférence également au niveau du foyer de la lentille optique 3.Preferably, the first light source comprises a first light emitting diode mounted on a first printed
De préférence, la deuxième source de lumière comprend une troisième diode électroluminescente montée sur un troisième circuit imprimé 19. Ce circuit imprimé 19 est de préférence positionné et fixé sur le radiateur 4. Les faisceaux lumineux émis par la deuxième source sont réfléchis par une surface réfléchissante 12 du deuxième réflecteur 7 avant d'être déviés par la lentille optique 3. Ces différents éléments constituent un deuxième système optique permettant de générer une partie complémentaire du faisceau lumineux généré par le premier système optique de sorte que les premier et deuxième faisceaux produisent complémentairement un faisceau lumineux de type feu de route. De préférence, la surface réfléchissante 12 est en forme d'ellipsoïde. La troisième diode se trouve au moins sensiblement au premier foyer de la surface réfléchissante 12 et le foyer de la lentille optique 3 se trouvant au moins sensiblement au niveau du deuxième foyer de la surface réfléchissante 12.Preferably, the second light source comprises a third light emitting diode mounted on a third printed
Compte tenu de la structure des systèmes optiques décrits précédemment, on comprend qu'il est important que les différents composants des systèmes optiques, à savoir : sources de lumière, réflecteurs, plieuse et lentille optique soient positionnés précisément les uns par rapport aux autres. Pour ce faire, plusieurs solutions existent. Notamment, on peut positionner la lentille par rapport au support, positionner les réflecteurs par rapport au support, positionner les sources de lumière par rapport au radiateur et positionner le radiateur par rapport au support. Dans cet exemple, la chaîne de cotes positionnant les sources de lumière par rapport aux réflecteurs ou par rapport à la lentille optique passent par le radiateur et le support. Alternativement, on peut positionner la lentille par rapport au support, positionner les réflecteurs par rapport au radiateur, positionner les sources de lumière par rapport au radiateur et positionner le radiateur par rapport au support. Dans ce dernier exemple, la chaîne de cotes positionnant les sources de lumière par rapport aux réflecteurs ne passent plus que par le radiateur.Taking into account the structure of the optical systems described above, it will be understood that it is important that the various components of the optical systems, namely: light sources, reflectors, bender and optical lens are positioned precisely with respect to each other. To do this, several solutions exist. In particular, it is possible to position the lens with respect to the support, to position the reflectors with respect to the support, to position the light sources with respect to the radiator and to position the radiator with respect to the support. In this example, the chain of dimensions positioning the light sources with respect to the reflectors or with respect to the optical lens pass through the radiator and the support. Alternatively, one can position the lens with respect to the support, position the reflectors with respect to the radiator, position the light sources with respect to the radiator and position the radiator with respect to the support. In the latter example, the chain of dimensions positioning the light sources with respect to the reflectors no longer pass through the radiator.
Avantageusement, dans toutes les variantes, les différents composants des systèmes optiques sont supportés par le support indirectement ou, de préférence, directement.Advantageously, in all the variants, the various components of the optical systems are supported by the support indirectly or, preferably, directly.
Le ventilateur permet de créer un flux d'air 22 s'écoulant entre des ailettes 18 du radiateur et canalisé par un guide 13 pour optimiser l'échange thermique entre l'air et le radiateur.The fan makes it possible to create an
De préférence, les différents circuits imprimés portant les diodes électroluminescentes sont fixés sur le radiateur et positionnés par rapport au radiateur. Ils sont donc indirectement supportés par le support 2, le radiateur étant fixé sur le support.Preferably, the various printed circuits carrying the light-emitting diodes are fixed to the radiator and positioned relative to the radiator. They are therefore indirectly supported by the
Le support présente par ailleurs des moyens de fixation permettant sa fixation à une structure du véhicule automobile. De préférence, les moyens de fixation permettent sa fixation dans un boîtier de dispositif d'éclairage et/ou de signalisation, ce boîtier présentant par ailleurs des moyens de fixation à la structure du véhicule automobile. Le support est de préférence réalisé par moulage. Il est par exemple réalisé en métal ou en plastique, notamment en composite.The support also has fixing means allowing it to be fixed to a structure of the motor vehicle. Preferably, the fixing means allow it to be fixed in a housing of a lighting and / or signaling device, this housing also having means for fixing to the structure of the motor vehicle. The support is preferably produced by molding. It is for example made of metal or plastic, in particular composite.
Un deuxième mode de réalisation du module optique selon l'invention est décrit ci-après en référence aux
Par exemple, le support peut comprendre comme premiers moyens d'articulation un tenon (non représenté), par exemple un tenon au sommet du support et un tenon en dessous, l'axe passant par ces tenons correspondant à l'axe de rotation du module par rapport au boîtier. L'embase peut comprendre comme deuxièmes moyens d'articulation des orifices destinés à coopérer avec les tenons.For example, the support may comprise as first articulation means a tenon (not shown), for example a tenon at the top of the support and a tenon below, the axis passing through these tenons corresponding to the axis of rotation of the module. relative to the housing. The base may include, as second articulation means, orifices intended to cooperate with the tenons.
Selon une variante, l'embase 2b comprend un mécanisme d'entraînement, d'où sort un axe d'entraînement 2d coopérant avec un orifice du module, préférentiellement du support 2, de manière à entraîner le support 2 en rotation. En variante, et tel qu'illustré, le support 2 peut être indirectement relié à l'embase 2b par une pièce intermédiaire (non représentée par souci de clarté), par exemple un cadre. Le support peut alors comprendre des pattes de fixation 2e fixées au cadre. Le cadre comprend alors des moyens coopérant avec les deuxièmes moyens d'articulation de l'embase, par exemple un tenon en haut et un orifice en bas, le tenon tournant dans l'orifice supérieur 2c de l'embase et l'orifice recevant l'axe d'entrainement 2d.According to one variant, the
Dans tout ce document, on entend, par « supporter un composant », l'action de reprendre les efforts exercés sur le composant et de les transmettre à la structure du véhicule automobile, les efforts étant notamment ceux, à distance, dus à des forces d'accélération comme le poids. En outre, une pièce supportant « directement » un composant reprend directement les efforts exercés sur le composant et les transmet à la structure du véhicule automobile, c'est-à-dire qu'il n'y a pas de pièce intermédiaire transmettant les efforts entre le composant et la pièce. Alternativement, une pièce intermédiaire peut être prévue si sa seule fonction est une fonction d'interface. Dans ce dernier cas, malgré la pièce intermédiaire, on considère que la pièce supporte directement le composant.Throughout this document, the term “supporting a component” is understood to mean the action of taking up the forces exerted on the component and of transmitting them to the structure of the motor vehicle, the forces being in particular those, at a distance, due to forces. acceleration like weight. In addition, a part supporting a component "directly" directly takes up the forces exerted on the component and transmits them to the structure of the vehicle. automotive, that is to say that there is no intermediate part transmitting the forces between the component and the part. Alternatively, an intermediate part can be provided if its only function is an interface function. In the latter case, despite the intermediate part, it is considered that the part directly supports the component.
Dans les différents modes de réalisation, le module optique assure une première fonction feu de croisement et une deuxième fonction feu de route. Cependant, le module optique selon l'invention peut assurer toute autre fonction en remplacement de l'une et/ou de l'autre des première et deuxième fonctions. Le module optique selon l'invention peut également n'assurer qu'une seule fonction d'éclairage et/ou de signalisation, comme une fonction antibrouillard.In the various embodiments, the optical module performs a first low beam function and a second high beam function. However, the optical module according to the invention can perform any other function replacing one and / or the other of the first and second functions. The optical module according to the invention can also provide only a single lighting and / or signaling function, such as an anti-fog function.
Dans tout ce texte, le terme « au moins sensiblement » utilisé avec différents adjectifs signifie : « adjectif » ou « sensiblement adjectif », par exemple « au moins sensiblement perpendiculaire » signifie « perpendiculaire » ou « sensiblement perpendiculaire ».Throughout this text, the term “at least appreciably” used with different adjectives means: “ adjective ” or “appreciably adjective ”, for example “at least appreciably perpendicular” means “perpendicular” or “appreciably perpendicular”.
Dans l'exemple décrit, le support 2 est réalisé d'un seul tenant, le support étant une pièce monolithique.In the example described, the
Ce support 2 est par exemple réalisé par moulage en matière plastique.This
Le deuxième réflecteur 7 est formé sur une pièce, notamment monolithique, à savoir réalisée d'un seul tenant, pourvue d'une ouverture de refroidissement 50 pour une circulation d'air de refroidissement, comme illustré notamment sur les
L'échangeur thermique 4 est pourvu de plusieurs ailettes de refroidissement 51 s'étendant en regard de l'ouverture de refroidissement 50.The
Le réflecteur 7 comporte une paroi bombée 52 agencée pour servir au guidage de l'air sortant de l'ouverture de refroidissement 50.The reflector 7 comprises a
Le support 2 comporte un renfoncement 55 pour recevoir le réflecteur 6, comme on peut le voir sur la
Le réflecteur 7 forme avec le support 2 une enceinte 56 recevant le réflecteur 6, permettant notamment d'avoir un module relativement compact (voir
Le support 2 comporte deux bras de fixation 60 agencés pour permettre la fixation, notamment par collage, de la lentille 3, ces bras 60 s'étendant en saillie vers l'avant du support 2.The
Ces bras se raccordent à une portion annulaire 61 du support 2.These arms are connected to an annular portion 61 of the
La lentille 3 comporte deux bords rectilignes opposés 63 agencés pour être fixés sur les bras 60 du support 2 (voir
La lentille comporte, sur chaque bord 63, une patte de fixation 65 pour la fixation de la lentille 3 sur le support 2, cette patte 65 pouvant coopérer avec un ou plusieurs picots 66 sur le bras de fixation 60 du support (voir
Chacun des premier et deuxième réflecteurs 6 et 7 est réalisé d'un seul tenant.Each of the first and
Le réflecteur 6 comporte deux surfaces réfléchissantes associées chacune à une source de lumière.The
La plieuse 8 est réalisée sur une pièce métallique, de préférence une pièce monolithique.The folder 8 is made on a metal part, preferably a monolithic part.
La plieuse 8 est pourvue de faces réfléchissantes inférieure 70 et supérieure 71 (voir
La plieuse 8 est formée sur une pièce monolithique, à savoir réalisée d'un seul tenant, de préférence en métal pour assurer notamment une meilleure résistance thermique contre la chaleur provenant du ou des sources de lumière du dispositif ou du soleil.The folder 8 is formed on a monolithic part, namely made in one piece, preferably in metal to ensure in particular better thermal resistance against the heat coming from the light source (s) of the device or from the sun.
La plieuse 8 présente un bord de coupure 74, avec une marche 75 (voir
La plieuse 8 est formée sur une pièce disposée à une distance non nulle de l'échangeur thermique 4.The folder 8 is formed on a part arranged at a non-zero distance from the
La plieuse 8 comporte des bords avant et arrière 78, de préférence sensiblement parallèles, et notamment sensiblement rectilignes, les faces réfléchissantes 70 et 71 de la plieuse 8 s'étendant entre ces bords 78, lesquels sont notamment perpendiculaires à l'axe optique x du module.The folder 8 has front and
Claims (10)
- Optical module for a lighting and/or signaling device of a motor vehicle, in particular a headlight, comprising:- a support (2),- a light source comprising in particular at least one LED,- a reflector designed to reflect the light coming from the light source,- a bending element (8) placed on the path of light coming from the reflector and designed to reflect light coming from the reflector, this bending element being attached in the module in an immovable manner relative to the light source, this bending element being produced on a metal part,
wherein the bending element has a cut-off edge to produce a cut-off in the beam, the bending element being formed on a monolithic part of metal and comprising front and rear edges that are substantially parallel and substantially rectilinear, the reflective surface or surfaces of the bending element extending between these edges, which are perpendicular to the optical axis of the module, characterized in that the bending element (8) is provided with lower and upper reflective surfaces (70, 71) being connected so as to form a bevel having an acute angle, the bending element comprising at least one fastening lug, designed to allow it to be attached to the support (2), the bending element comprising two fastening lugs at the opposed ends of the bending element (8). - Module according to the preceding claim, characterized in that this angle is less than 15°.
- Module according to the preceding claim, characterized in that this angle is less than 5°, or else less than 2°, or even less than 1°.
- Module according to one of the preceding Claims, characterized in that these surfaces (70, 71) of the bending element are locally planar.
- Module according to one of the preceding Claims, characterized in that these lower and upper surfaces are not parallel to one another.
- Module according to one of the preceding claims, characterized in that the bending element (8) comprises at least one machined reflective surface.
- Module according to one of the preceding claims, characterized in that the bending element (8) is formed on a part arranged at a non-zero distance from a heat exchanger.
- Module according to one of the preceding claims, characterized in that the fastening lug is lateral.
- Module according to one of the preceding claims, characterized in that these lugs are arranged at the ends of the bending element (8) in the direction of the largest dimension.
- Module according to one of the preceding claims, characterized in that the direction of the largest dimension of the bending element (8) is advantageously substantially perpendicular to an optical axis of the module.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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FR1056095A FR2965039B1 (en) | 2010-07-26 | 2010-07-26 | OPTICAL MODULE FOR A LIGHTING AND / OR SIGNALING DEVICE FOR A MOTOR VEHICLE |
FR1057146A FR2964724B1 (en) | 2010-09-09 | 2010-09-09 | OPTICAL MODULE FOR A LIGHTING AND / OR SIGNALING DEVICE FOR A MOTOR VEHICLE. |
PCT/EP2011/062664 WO2012013601A1 (en) | 2010-07-26 | 2011-07-22 | Optical module of an illuminating and/or signalling device of a motor vehicle |
Publications (2)
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EP2598793A1 EP2598793A1 (en) | 2013-06-05 |
EP2598793B1 true EP2598793B1 (en) | 2021-04-14 |
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US (2) | US9121561B2 (en) |
EP (1) | EP2598793B1 (en) |
CN (2) | CN106885196B (en) |
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WO (1) | WO2012013601A1 (en) |
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US20140036523A1 (en) | 2014-02-06 |
CN103119360A (en) | 2013-05-22 |
US9121561B2 (en) | 2015-09-01 |
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US9500337B2 (en) | 2016-11-22 |
CN106885196A (en) | 2017-06-23 |
CA2810385C (en) | 2018-04-10 |
CN103119360B (en) | 2017-02-08 |
CN106885196B (en) | 2022-03-04 |
CA2810385A1 (en) | 2012-02-02 |
US20150369438A1 (en) | 2015-12-24 |
WO2012013601A1 (en) | 2012-02-02 |
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