EP2957823B1 - Module d éclairage et/ou de signalisation rotatif - Google Patents

Module d éclairage et/ou de signalisation rotatif Download PDF

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Publication number
EP2957823B1
EP2957823B1 EP15171671.9A EP15171671A EP2957823B1 EP 2957823 B1 EP2957823 B1 EP 2957823B1 EP 15171671 A EP15171671 A EP 15171671A EP 2957823 B1 EP2957823 B1 EP 2957823B1
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EP
European Patent Office
Prior art keywords
frame
light source
lighting
screen
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.)
Active
Application number
EP15171671.9A
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German (de)
English (en)
French (fr)
Other versions
EP2957823A1 (fr
Inventor
Christophe Dubosc
Stephan Sommerschuh
Benoit Reiss
Ziyed Thabet
Antoine De Lamberterie
Brahim Elhachir
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
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Valeo Vision SAS
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Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP2957823A1 publication Critical patent/EP2957823A1/fr
Application granted granted Critical
Publication of EP2957823B1 publication Critical patent/EP2957823B1/fr
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Classifications

    • 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
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to the field of lighting and / or signaling, in particular for motor vehicles. More particularly, the invention relates to a lighting and / or signaling module for a motor vehicle, as well as to a headlight comprising such a module.
  • EP2902701 A1 which belongs to the state of the art according to Article 54 (3) EPC, shows a lighting and / or signaling module for a motor vehicle, comprising at least a light source, a reflector and a light guide.
  • the reflector is movable under the effect of an actuator, and the light source is fixed relative to the actuator.
  • the light guide is integral with the reflector support.
  • the document FR 2 817 212 describes a motor vehicle headlight with a directional lighting function better known by the acronym DBL (Dynamic Bending Light).
  • the projector includes an optical system whose direction of illumination is changed by rotation, an output shaft coupled to the optical system to drive the optical system, a motor, and a rotation transmission mechanism coupled to the motor to drive it. transmits the rotation of the motor to the output shaft, wherein the motor, the output shaft and the rotation transmission mechanism are placed in a housing body, and a rotating shaft of the motor is supported by the housing body .
  • a support shaft of an intermediate gear placed between the motor and the output shaft is directly supported by the housing body.
  • the document EP 1 285 812 describes a projector comprising a movable assembly provided with a reflector and a light source, and a fixed assembly at least partially bordering the movable assembly which can rotate, relative to the fixed assembly, about a first vertical axis for azimuth adjustment, and around a horizontal transverse axis for elevation adjustment.
  • the purpose of such an arrangement is to keep the operating clearances constant between the fixed parts and the moving parts.
  • the document EP 2 423 047 describes a headlight of a motor vehicle designed to combine the night lighting function with the daytime signaling function known by the English acronym DRL (Daytime Running Light). Night lighting is obtained by a fixed lighting module, while DRL type lighting is achieved by means of an array of light-emitting diodes which can be retracted into a position internal to the projector.
  • DRL Daytime Running Light
  • the object of the invention is to provide a module and a lighting and / or signaling projector capable of providing at least two lighting and / or signaling functions, and of simple and compact construction.
  • the invention relates to a lighting and / or signaling module in particular for a motor vehicle, comprising means for optical deflection of light rays emitted by a first light source, as well as a frame comprising at least one screen capable of taking a position on the path of the light rays deflected by said optical deflection means.
  • the optical deflection means and said frame are mounted so as to be able to rotate while the first light source remains fixed, and control means are able to send control instructions to actuators controlling on the one hand the rotation of said deflection means. optics and the chassis and the other switching on and off of said first light source.
  • optical deflection means and the first light source cooperate to fulfill a regulatory lighting and / or signaling function.
  • the frame can be mounted to be able to rotate independently of the rotation of the optical deflection means. It advantageously comprises two screens, said frame being mounted movable in rotation to pass from a first extreme position in which a first screen of the frame is placed opposite a second light source which is distinct and fixed with respect to said first light source, to a second extreme position in which the second screen of the frame is placed opposite the second light source.
  • the invention also relates to a lighting and / or signaling headlamp for a motor vehicle, comprising a housing and at least one lighting and / or signaling module, in which the lighting and / or signaling module is compliant. to what has been described above.
  • the projector can advantageously comprise three lighting and / or signaling modules.
  • a lighting and / or signaling module 10 is fixed in a housing (not shown) of a projector, and it comprises a first actuator 12 integral with the housing, a first axis 14 driven in rotation by the first actuator 12 and integral with a support 16, as well as a frame 18 which comprises at least one screen transparent to light and which is mounted around the support 16 so that the at least one screen of the frame can be placed opposite one side of the support.
  • This frame is mounted movable in rotation, and this independently of the support, so that the frame can rotate around the support, while the latter remains fixed or otherwise rotates.
  • the first actuator 12 comprises an electric motor, driven by control means (not visible on the figures 1 and 2 ) and able to transmit a control instruction to said motor, and transmission means in rotation between the motor and the first axis.
  • the first axis 14 supports the support 16 in its lower part, and the first axis 14 is substantially vertical, but it could have another orientation.
  • the support 16 of the module 10 comprises a first reflecting face 20 playing the role of a reflector capable of providing a lighting and / or regulatory signaling function. This function is fulfilled by the cooperation of the reflector 20 with a first light source 22.
  • the first light source 22 is fixed relative to the actuator.
  • a lighting and / or signaling function complies with the regulations in force.
  • This lighting and / or regulatory signaling function can be a daytime signaling function, commonly referred to by the name DRL (from the acronym “Daytime Running Light”), or else a daytime running light function. crossing, commonly referred to as "code”, or a lighting function commonly referred to as "road”.
  • DRL daytime Running Light
  • code a daytime running light function. crossing
  • the first reflecting face 20 thus ensures the formation of a regulatory lighting and / or signaling beam directed towards the front of the vehicle.
  • the first light source 22 is a semiconductor source, and preferably of the light emitting diode (LED) type, and is substantially aligned with the first axis 14.
  • the expression “substantially aligned” is understood to mean that the distance between the geometric center of the light-emitting diode 22 and the axis of rotation of the support 16 is not greater than the dimensions of the light-emitting diode 22
  • the latter can be fixed and positioned on a printed circuit board 24, itself fixed in the housing (not shown) of the projector.
  • the support 16 of the module 10 also comprises a second face 26 opposite the first face forming the reflector 20 and providing a second function.
  • This second function can be either a regulatory daytime signaling function, or a regulatory crossing and / or main road lighting function, or an aspect function.
  • the module 10 may include an upper pivot 36 collinear with the first axis 14 via the support 16 to increase the precision of the relative positioning of the first light source 22 with respect to the reflector 20.
  • the frame 18 is made of a material transparent to light and it comprises two screens 28 and 30 which extend substantially vertically in the module, mutually parallel. Each screen has a peripheral edge 38 and an upper edge 40.
  • the screens are connected on the one hand at their upper end by transverse connecting walls 32 which are connected perpendicularly to the lateral ends of the upper edge of the screen, forming a base. upper, in particular for stiffening the frame, and on the other hand at their lower end by a structural element of the frame 46 which forms a lower base substantially parallel to the horizontal walls.
  • the screens preferably take the form of a sheet light guide, with a central portion of the sheet having a curved profile, the curvature of which substantially follows the direction of rotation of the frame.
  • the frame is thus arranged in the module so that it surrounds the support, with the first screen 28 or the second screen 30 which is able, depending on the position of the frame, to take the active position upstream of the support, that is to say say on the path of the light rays when the optical deflection means reflect light rays emitted by the first light source 22 towards the output of the module.
  • the central part of the web of each screen can carry decoupling means, in particular prisms, for the deflection of the rays reflected by the reflector and passing through the screen. Provision can in particular be made for the optical devices to be distributed non-uniformly over the central part of the web relative to the direction of rotation of the frame. The advantage of such a non-uniform distribution of the optical devices can be found in a progression of the optical effect produced by the passage of the rays through the screen, as it rotates towards the active position.
  • Other structural differences may appear, such as for example the fact that one of the screens of the frame carries light decoupling elements, arranged or not to form patterns, for example on all or part of its surface for the function of 'aspect, while the other screen does not have such an aspect to remain neutral.
  • the module comprises a second actuator (not shown) integral with the housing, controlled like the first actuator by control means not shown here, and a second axis 44 driven in rotation by the second actuator.
  • the second axis 44 extends parallel to the first axis of rotation of the support, between the actuator and the structural element 46 of the frame which extends transversely, perpendicularly to the second axis.
  • the second actuator comprises, in a manner equivalent to the first actuator 12, an electric motor and transmission means in rotation between the motor and the second axis 44.
  • a possible arrangement of the two actuators and of the two axes is illustrated in the figures, it being understood that other types of arrangement may be chosen by those skilled in the art.
  • the structural element of the frame 46 extends substantially perpendicularly the lower end of the at least one screen, extending across the first axis of rotation of the support.
  • the structural element of the frame has a through bore, not visible in the figures, capable of allowing passage to the first axis of rotation.
  • the second axis 44 here consists of two rods which are each connected to the structural element of the frame 46 and to the second actuator, and which are arranged diametrically on either side of the shaft forming the first axis 14.
  • the second actuator is controlled as a function of a control instruction received from control means of the module, so as to make the frame pivot around the second axis and so as to move the screen between a retracted position, in which the screen is not or hardly visible, and an active position, in which the screen is upstream of the support.
  • upstream is understood to mean the position in which the screen is arranged between the support and the front of the vehicle, towards which the lighting and / or signaling functions are directed.
  • a second light source 34 fixed and positioned on a printed circuit board, advantageously the carrier board also for the first light source 22, capable of illuminating the screen of the chassis. which is in the active position upstream of the support. Provision is made for the second light source to be arranged at a determined distance from the first light source so that the screen of the frame, when it is in the active position upstream of the support, is placed in line with the second source of light. light and can be illuminated by it.
  • the second light source 34 is fixed relative to the first light source 22 and it remains fixed while the support and / or the frame rotates. It can consist of one or more light-emitting diodes (LED).
  • the first screen or the second screen of the frame 18 which is found in this active position upstream of the support is placed in line with the second light source 34 so as to be able to thus perform a regulatory signaling function if the second source light is on.
  • the entry face of the frame for the light rays emitted by this second light source is formed by the upper edge of the screen while the exit faces are arranged in the peripheral edge.
  • a lighting and / or signaling function is thus performed, distinct from that performed by the reflection of light rays from the first light source.
  • the peripheral part of the screen can have a prism oriented in one way or another to return the light from the second source 34 to the front of the vehicle to fulfill a signaling function and / or to the rear to participate. to the aspect function.
  • the second light source 34 can be switched on in addition to the first light source 22 so that the peripheral part 38 of the first screen 28, facing the reflector, emits light. This makes it possible to use a first screen of the frame 18 in addition to the reflector 20.
  • a preferred use of the two light sources is to keep the second source constantly on and to increase the intensity of the second light source if one. wishes to perform a signaling function, or to turn on the first light source if one wishes to perform a lighting function.
  • the rotation of the frame can advantageously be controlled independently of that of the support.
  • the control device sends an instruction to the second actuator to set the chassis or not.
  • the rotation of the chassis is played on in order to place in front of the reflector alternately a first screen, neutral, or a second screen carrying decoupling elements of light, arranged or not to form patterns for example. Provision can thus be made to rotate the frame around the support which remains stationary and to turn on the second light source when it is the screen bearing patterns in its center which is opposite this source to produce a scenario of welcoming the driver before entering the vehicle.
  • the module is initially in a rest position P1 (the position illustrated on figure 2 ): the module 10 is oriented so that the aspect face 26 is oriented towards the front of the vehicle, to be visible from outside the vehicle.
  • a screen of the frame, here the first screen 28, is arranged opposite the aspect face, upstream of the latter.
  • a signaling function is advantageously carried out, by switching on the second light source above the first screen which, for the light rays penetrating through its upper edge, acts as an optical guide with an exit face arranged in periphery.
  • the appearance function of the second face 26 of the support 16 can thus be accompanied by the signaling function provided by the chassis 18.
  • This signaling function can be used before starting the vehicle, essentially for aesthetic reasons, or when '' daytime running, to perform or participate in the so-called DRL (Day Running Light) daytime lighting function
  • control means When the control means receive information I1 for triggering night lighting, either by the driver or by visibility sensors for example, the control means generate a control instruction C1 to the first actuator for the rotation of the associated support, in order to rotate the support by 180 ° and move the reflecting face to the active position P2, facing the front of the vehicle.
  • control means prepare a control instruction C2 for the first light source to force its ignition and allow the emission of light rays on the reflecting face.
  • control means carry out a test T1 to find out whether the support has arrived in an active functional position. As long as the answer is negative, that is to say that the angular position of the optical system formed by the support is not included in the range of values defined by the manufacturer, the ignition control instruction n ' is not sent to the first light source and it remains off. As soon as the response is positive, i.e.
  • the control instruction C2 is sent and the first light source is turned on and emits light rays in the direction of the reflective face of the support.
  • an angular range of +/- 2 ° is provided around the stop position of the reflector in the active position, in which the manufacturer considers that the rotation of the reflector does not disturb the path of the rays reflected at the exit. module, or at least that the resulting disturbances are acceptable in order to comply with the regulatory conditions of the lighting and / or signaling function performed.
  • the module adopts, automatically or on the basis of control information I2 received by the control means, a different configuration in which the support 16 of the module 10 is rotated by 180 ° relative to the configuration of the figure 2 , so as to resume the rest position P1 and present the second face 26 facing the front of the vehicle, to thus perform the appearance and / or lighting and / or signaling function also described above.
  • the first light source is turned off before the holder leaves the active position.
  • the control means send simultaneously, or almost simultaneously, a control instruction C3 to the first actuator for the rotation of the support and a control instruction C4 to extinguish the first light source.
  • the support is ordered so that the reflector is in the active position P3 (position visible on the figure 1 ) as soon as the vehicle is moving and the aspect function is no longer required.
  • the control means give instruction C5 to the second actuator to bring one of the screens into the active position upstream of the reflector.
  • control means prepare an instruction C6 for switching on the second light source, so as to allow the emission of light rays into the web of the screen placed under the second light source.
  • control means carry out a T2 test to find out whether the optical system formed by the chassis has arrived in an active functional position. As long as the response is negative, i.e. the angular position of the chassis is not within a second range of values defined by the manufacturer, the ignition control instruction is not sent to the first light source and it remains off.
  • the second range of values may be the same as the first range of values, that is to say +/- 2 ° in the numerical example given here by way of nonlimiting example, or else that on the contrary, it can be different, and preferably larger than the first range of values.
  • the disturbances that the rotation of the frame can generate on the rays emitted by the second light source can be considered legally less penalizing, because they impact a signaling function, than the disturbances generated by the rotation of the reflector and of the associated frame on the rays emitted by the first light source which impact a lighting function.
  • the command command C6 is sent and the second light source is on and emits light rays in the direction of the first screen arriving under the second light source.
  • the lighting function can also be directional, that is to say of the DBL type (Dynamic Bending Light), thanks to the actuator 12 of the module 10, which can control a rotation of the reflector of a few degrees around the first axis. .
  • the rotation of the screen is controlled so that the screen again remains in the axis of emission of the rays reflected by the reflector, so that no scattering of the rays results from this directional lighting.
  • the first light source remains on even if the angle of rotation of the reflector is greater than the threshold defined by the angular range described above, since the screen follows the rotation of the support.
  • the beams generated by the module (s) which have been described above can constitute beams complementary to regulatory beams generated by conventional devices, or else they can together constitute regulatory lighting and / or beams. or signaling.
  • the characteristic according to which the light source is switched off prior to the rotational movement of the optical system formed by the support and / or the frame, before being switched on again only under conditions of angular position of the optical system makes it possible to benefit from the multiple combinations possible in the lighting and / or signaling functions of the vehicle offered by the possible rotations of the reflector support and of the chassis without however presenting the risk of non-regulatory lighting or signaling.
  • the headlight of a motor vehicle in order to perform lighting and / or signaling functions, may include one or more modules identical to that which has been described, arranged in series in a housing.
  • a series of several modules advantageously three, provision may be made to make the support of each module and the frame of each module rotatable by actuators which can be controlled independently of each other, to ensure greater flexibility in the lighting and / or signaling functions, and each of the modules will be associated with a control device capable of carrying out the instructions for implementing the ignition control method according to the invention, this control device being able to be common to the three modules.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
EP15171671.9A 2014-06-16 2015-06-11 Module d éclairage et/ou de signalisation rotatif Active EP2957823B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1455507A FR3022328B1 (fr) 2014-06-16 2014-06-16 Module d'eclairage et/ou de signalisation rotatif

Publications (2)

Publication Number Publication Date
EP2957823A1 EP2957823A1 (fr) 2015-12-23
EP2957823B1 true EP2957823B1 (fr) 2021-01-06

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EP15171671.9A Active EP2957823B1 (fr) 2014-06-16 2015-06-11 Module d éclairage et/ou de signalisation rotatif

Country Status (4)

Country Link
US (1) US20150369439A1 (zh)
EP (1) EP2957823B1 (zh)
CN (1) CN105270253B (zh)
FR (1) FR3022328B1 (zh)

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JP1523888S (zh) * 2014-08-28 2015-05-18
FR3056683B1 (fr) * 2016-09-26 2019-04-05 Valeo Vision Module lumineux, notamment d'eclairage et/ou de signalisation pour vehicule automobile
CN112806794B (zh) * 2020-12-31 2022-06-21 江西服装学院 一种展示装置及服饰展示装置
CN114353027B (zh) * 2021-12-24 2024-08-06 广州市莱帝亚照明股份有限公司 一种可翻转led灯具的安装方法

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FR3022328B1 (fr) 2016-06-10
FR3022328A1 (fr) 2015-12-18
CN105270253B (zh) 2019-07-26
EP2957823A1 (fr) 2015-12-23
US20150369439A1 (en) 2015-12-24
CN105270253A (zh) 2016-01-27

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