EP2964486A1 - Dispositif d'éclairage pour un phare de véhicule - Google Patents

Dispositif d'éclairage pour un phare de véhicule

Info

Publication number
EP2964486A1
EP2964486A1 EP14714915.7A EP14714915A EP2964486A1 EP 2964486 A1 EP2964486 A1 EP 2964486A1 EP 14714915 A EP14714915 A EP 14714915A EP 2964486 A1 EP2964486 A1 EP 2964486A1
Authority
EP
European Patent Office
Prior art keywords
light source
reflector
lighting device
carrier
exactly
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.)
Granted
Application number
EP14714915.7A
Other languages
German (de)
English (en)
Other versions
EP2964486B1 (fr
Inventor
Christian Seyrlehner
Christoph Zeller
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.)
ZKW Group GmbH
Original Assignee
Zizala Lichtsysteme GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zizala Lichtsysteme GmbH filed Critical Zizala Lichtsysteme GmbH
Publication of EP2964486A1 publication Critical patent/EP2964486A1/fr
Application granted granted Critical
Publication of EP2964486B1 publication Critical patent/EP2964486B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F21S41/192—Details of lamp holders, terminals or connectors
    • 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
    • F21S41/10—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]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
    • F21S41/333—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas with discontinuity at the junction between adjacent areas
    • 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
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
    • 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
    • F21S41/60—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
    • 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
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • 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

Definitions

  • the invention relates to a lighting device for a motor vehicle headlight, wherein the lighting device has at least one reflector, and wherein at least one light source is associated with the at least one reflector, and wherein light from the at least one light source via the reflector to form a light distribution or a part of a light distribution in an area is emitted in front of the lighting device.
  • the invention relates to a vehicle headlight with at least one such lighting device.
  • LED light sources which consist of one or more light emitting diodes, are increasingly used for generating main light distribution, such as, for example, high beam distribution, dimmed light distributions, e.g. Dipped beam, etc. used.
  • main light distribution such as, for example, high beam distribution, dimmed light distributions, e.g. Dipped beam, etc. used.
  • the light from one or more LED light sources via one or more reflectors in an area in front of the motor vehicle, in which the vehicle headlamp is installed, radiated and illuminate the area in front of the vehicle.
  • the LED light source (s) is or are arranged on a carrier, generally a heat sink.
  • the LED light source (s) sits or sit on an LED board, which in turn is arranged on the carrier, for example glued to it.
  • the associated reflector is positioned accordingly and then to the Support or fixed with respect to the carrier, usually screwed to this or with another fixed component.
  • the lighting device has at least one, preferably exactly one reflector-carrier, and wherein the at least one reflector fixed to the at least a reflector support is attached, and wherein the at least one light source is arranged on at least one light source carrier, and wherein the at least one light source carrier slidably mounted on the reflector support and fixable in a defined position with respect to the reflector support is.
  • the reflector is no longer arranged with respect to the fixed light source, but the reflector is initially mounted on a reflector support, which may be formed solid, and then the light source, which sits on a light source carrier, positioned accordingly and finally fixed the light source carrier with respect to the reflector support.
  • a reflector support which may be formed solid
  • the light source which sits on a light source carrier, positioned accordingly and finally fixed the light source carrier with respect to the reflector support.
  • both the reflector carrier and the light source carrier can be designed as solid components or are preferably of solid construction, there are no adverse effects on the photograph when these components are fixed to one another.
  • the at least one reflector carrier is designed as a main heat sink.
  • the at least one light source carrier is designed as a light source heat sink.
  • the at least one light source carrier - in the installation position of the lighting device - with respect to the at least one reflector support is vertically displaceable.
  • the at least one reflector support for the at least one light source carrier has at least one guide groove / at least one guide pin and the at least one light source carrier has at least one corresponding guide pin / at least one corresponding guide groove.
  • the at least one guide groove is attached to the reflector carrier and the at least one corresponding guide pin is arranged on the at least one light source carrier.
  • the at least one guide groove is elongate and extends in a straight line.
  • the at least one guide groove is arranged to extend vertically in the installed position of the lighting device.
  • the at least one guide pin is elongate and rectilinear, extending in the direction of the corresponding guide groove extending.
  • two (or more) pins guided in the guide groove may be provided which do not have an elongated extension but are "merely" designed to be projecting, for example formed as rounded elevations.
  • the at least one guide groove or the at least one guide pin is interrupted by a fastening opening for fastening the light source carrier to the reflector carrier.
  • a guide groove (or exactly one guide groove) and a guide pin (or exactly one guide pin) are thus divided into two parts.
  • the light source carrier can be connected to its central region and thus as evenly as possible with the reflector support, in particular press this.
  • each reflector is associated with exactly one light source carrier, each with at least one light source, and wherein the light source carriers are displaceable and fixable with respect to the at least one reflector support.
  • the lighting device comprises exactly four reflectors and exactly four associated light source carrier.
  • the light sources are LED light sources, wherein each LED light source comprises at least one, for example exactly one light-emitting diode.
  • each LED light source or at least the LED light sources of different reflectors separately controllable and on or off and / or dimmable, preferably each LED of a LED light source can be controlled separately and switched on and off and / or dimmable.
  • At least one of the reflectors is a high beam reflector for generating a high beam distribution or a part of a high beam distribution.
  • At least one of the reflectors can be a low-beam reflector for producing a low beam distribution or a part of a low beam distribution.
  • FIG. 1 is a schematic front view of a lighting device according to the invention, shown without reflector-carrier,
  • FIG. 2 shows the illumination device from FIG. 1 in a rear view, shown with a reflector carrier, FIG.
  • FIG. 5 shows the reflector carrier in the region of the upper light source heat sink
  • 6 shows the illustration from FIG. 5 with the upper light source heat sink removed
  • FIG 8 shows the reflector carrier in the region of the guide grooves for a lateral light source heat sink.
  • FIG. 1 schematically shows a lighting device 1 for a motor vehicle headlight, the lighting device 1 having four reflectors 10, 11, 12, 13 in the exemplary embodiment shown. Each of the four reflectors 10, 11, 12, 13 is assigned a respective light source 20, 21, 22, 23.
  • the light sources 20, 21, 22, 23 are LED light sources, each LED light source 20, 21, 22, 23 comprising at least one light-emitting diode.
  • each LED light source 20, 21, 22, 23 consists of a chip, on each of which 4 LEDs sit.
  • An LED light source in the present example thus comprises in each case 4 light-emitting diodes.
  • the different reflectors 10, 11, 12, 13 associated LED light sources 20, 21, 22, 23 separately controllable and on or off and / or dimmable, so that different reflectors can be supplied with light and correspondingly different light distribution can be activated ,
  • Light from the one of a reflector 10, 11, 12, 13 associated light source 20, 21, 22, 23 is emitted to form a light distribution or a part of a light distribution in a region in front of the lighting device 1.
  • the upper and lower reflectors 10, 11 together produce a high beam distribution
  • the two lateral reflectors 12, 13 together produce a low beam distribution.
  • the Reflectors 12, 13 are designed as double reflector, see also the notes at the end of the description.
  • the four reflectors 10, 11, 12, 13 are fixedly mounted on a reflector support 30 fixed to the reflector support 30.
  • "Fixed to the reflector support” means that the reflectors are fixed with respect to the support 30 , Preferably, the reflectors are attached directly to the carrier 30, for example screwed, as can be seen in Figure 2 well.
  • the reflector support 30 is preferably designed as a heat sink, via which the heat generated by the light sources 20, 21, 22, 23 can be dissipated.
  • Each of the light sources 20, 21, 22, 23 in turn is arranged on its own, usually much smaller light source carrier 40, 41, 42, 43, these four light source carriers 40, 41, 42, 43 preferably again as (four) Heat sink are formed.
  • Figure 3 shows once again the four light source carrier 40, 41, 42, 43 alone in a view from the front
  • Figure 4 shows the four light source carrier 40, 41, 42, 43 on the reflector carrier 30.
  • Light source carrier 40, 41, 42, 43 slidably mounted on the reflector support 30 and fixed in a defined position with respect to the reflector support 30.
  • a light source carrier be slidably mounted on the reflector carrier, that the light source carrier is displaceable with respect to the reflector carrier, wherein preferably the light source carrier is mounted displaceably directly on the reflector carrier.
  • FIG. 4 the vertical direction (relative to the mounting position of the lighting unit 1 in a vehicle), in which the light source supports 40, 41, 42, 43 are displaceable in the example shown, is indicated by means of arrows.
  • FIGS. 3 and 4 and FIGS. 5 to 8 Reference is again made below to FIGS. 3 and 4 and FIGS. 5 to 8:
  • the reflector support 30 has a guide groove 31a, 31b, 31c, 31d, namely preferably exactly one guide groove for each light source carrier 40, 41, 42, 43.
  • the guide grooves 31a, 31b, 31c, 31d are divided into two, so that it is also possible to speak of two grooves per light source carrier.
  • the guide grooves 31a, 31b, 31c, 31d are each interrupted by a fastening opening 50, via which the respective light source carrier can be fastened to the reflector carrier.
  • the attachment opening is, for example, a predrilled hole or, if the reflector support is cast, the reflector support is provided with this hole during the casting process.
  • Each light source carrier 40, 41, 42, 43 has on its side facing the reflector support 30 or side adjacent to the guide groove 31a, 31b, 31c, 31d guide pin 40 ', 41', 42 ', 43' , with which the light source carrier is guided in the associated groove.
  • the guide pins 40 ', 41', 42 ', 43' are interrupted by a mounting opening 51 for attaching the respective light source carrier 40, 41, 42, 43 to the reflector support 30, so that it can also be said that two pins (or a broken pin) per light source carrier is provided.
  • the attachment openings 51 in the light source carriers 40, 41, 42, 43 are preferably elongated holes that extend in the direction of displacement of the light source carrier and through which slots the light source carrier with a screw 52 with the reflector carrier 30 can be fixed in the desired, set position.
  • the screws 52 are preferably, as explained above, self-tapping screws which screw into the reflector carrier during the screwing operation.
  • the screws 52 are preferably, as explained above, self-tapping screws which screw into the reflector carrier during the screwing operation.
  • the guide grooves 31a, 31b, 31c, 31d are elongated and extend in a straight line in the vertical direction, as well as the guide pins.
  • the reflectors are attached to the reflector support prior to the adjustment of the light sources, so that there are no force effects when setting the light sources on the reflectors and thus no unwanted adjustment thereof occurs.
  • the reflector-carrier in particular in the form of a heat sink, may be formed as a metal part, for example as an aluminum die-cast part, so that the guide grooves can be made very accurately. Accordingly, the position of the light sources can be set exactly and even when mounting the position of the light sources with respect to the respective associated reflector no longer changes.
  • double or multiple reflectors can also be used in the present invention.
  • reflectors must be set separately, which is not possible with double and multiple reflectors.
  • the inventive adjustment of the light sources, the reflectors must not be adjusted, so that double and multiple reflectors can be used.
  • each light source could Carrier be slidably mounted on its own reflector-carrier and the four reflector-carrier are fixed to each other, structurally simpler, however, it is usually when, as shown exactly one reflector-carrier is provided.
  • the surfaces of the guide grooves, on which the light source carriers are displaceably guided are milled and, if necessary, their surfaces are treated in order to obtain particularly flat surfaces, so that the light source carriers can be moved well.
  • Up and down movement of the light sources 20, 21 in the vertical direction ie, up and down, the directions always relate to the mounting position of the headlamp) associated with the high beam reflectors 10, 11 (ie, emit their light on these reflectors), leads to a change in the size of the high beam spot.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un dispositif d'éclairage (1) destiné à un phare de véhicule automobile. Le dispositif d'éclairage (1) comporte au moins un réflecteur (10, 11, 12, 13). Au moins une source de lumière (20, 21, 22, 23) est associée au ou aux réflecteurs (10, 11, 12, 13), la lumière provenant de la ou des sources de lumière (20, 21, 22, 23) étant diffusée par l'intermédiaire du réflecteur (10, 11, 12, 13) pour obtenir une répartition de lumière ou une répartition de lumière partielle dans une zone située avant le dispositif d'éclairage (1). L'invention prévoit que le dispositif d'éclairage (1) comporte au moins un support de réflecteur (30), de préférence précisément un seul. Le ou les réflecteurs (10, 11, 12, 13) sont fixés de manière fixe au niveau du ou des supports de réflecteur (30). La ou les sources de lumière (20, 21, 22, 23) sont disposées sur au moins un support de source de lumière (40, 41, 42, 43), le ou les supports de lumière (40, 41, 42, 43) étant logés au niveau du support de réflecteur (30) de manière à pouvoir se déplacer par coulissement et pouvant être fixés dans une position définie par rapport au support de réflecteur (30).
EP14714915.7A 2013-03-07 2014-03-04 Dispositif d'éclairage pour un phare de véhicule Active EP2964486B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50158/2013A AT514022B1 (de) 2013-03-07 2013-03-07 Beleuchtungsvorrichtung für einen Fahrzeugscheinwerfer sowie Fahrzeugscheinwerfer
PCT/AT2014/050050 WO2014134649A1 (fr) 2013-03-07 2014-03-04 Dispositif d'éclairage pour un phare de véhicule

Publications (2)

Publication Number Publication Date
EP2964486A1 true EP2964486A1 (fr) 2016-01-13
EP2964486B1 EP2964486B1 (fr) 2021-06-30

Family

ID=50433885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14714915.7A Active EP2964486B1 (fr) 2013-03-07 2014-03-04 Dispositif d'éclairage pour un phare de véhicule

Country Status (6)

Country Link
US (1) US9671080B2 (fr)
EP (1) EP2964486B1 (fr)
JP (1) JP6122513B2 (fr)
CN (1) CN105008180B (fr)
AT (1) AT514022B1 (fr)
WO (1) WO2014134649A1 (fr)

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Also Published As

Publication number Publication date
US20160010823A1 (en) 2016-01-14
JP6122513B2 (ja) 2017-04-26
AT514022A1 (de) 2014-09-15
WO2014134649A1 (fr) 2014-09-12
US9671080B2 (en) 2017-06-06
EP2964486B1 (fr) 2021-06-30
AT514022B1 (de) 2015-11-15
CN105008180A (zh) 2015-10-28
CN105008180B (zh) 2017-04-05
JP2016508662A (ja) 2016-03-22

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