WO2017191044A1 - Module d'éclairage à del pour phare destiné à produire un faisceau de route et un faisceau de croisement - Google Patents

Module d'éclairage à del pour phare destiné à produire un faisceau de route et un faisceau de croisement Download PDF

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Publication number
WO2017191044A1
WO2017191044A1 PCT/EP2017/060172 EP2017060172W WO2017191044A1 WO 2017191044 A1 WO2017191044 A1 WO 2017191044A1 EP 2017060172 W EP2017060172 W EP 2017060172W WO 2017191044 A1 WO2017191044 A1 WO 2017191044A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
emitting diodes
emitting diode
circuit board
reflector
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.)
Ceased
Application number
PCT/EP2017/060172
Other languages
German (de)
English (en)
Inventor
Franz-Georg Willeke
Rainer Kürpick
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of WO2017191044A1 publication Critical patent/WO2017191044A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F21S41/30—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
    • F21S41/10—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
    • F21S41/39—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
    • 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

Definitions

  • LED light module for a headlight for generating a high beam and a low beam
  • the invention relates to an LED light module with a plurality of light-emitting diodes, wherein the light-emitting diodes are accommodated on a common printed circuit board and wherein a reflector is provided, which extends over the circuit board and can be irradiated in the light can be generated with the light-emitting diodes, and wherein a first light-emitting diode for Forming at least a portion of a low beam is formed and wherein a second light-emitting diode for generating at least a portion of a high beam is formed.
  • the LED light module is used for arrangement in a headlight of a vehicle or the LED light module itself forms a headlight of a vehicle.
  • an LED light module with a plurality of light-emitting diodes is known, and LEDs are arranged on a common printed circuit board, which is designed to generate a low beam and to generate a high beam.
  • a common printed circuit board On the circuit board there are several light emitting diodes for generating the respective light function, and the circuit board is in turn received on a heat sink.
  • the light-emitting diodes are designed in conjunction with a primary optical system for shaping the emission characteristic, so that the primary optics are transilluminated by the light from the light-emitting diodes, in order subsequently to radiate into a secondary optical system designed as a reflector.
  • the primary optics can be formed, for example, by a potting material that encloses the light-emitting diodes in a form-fitting manner.
  • the reflector is consequently discretely illuminated in certain angular ranges with the respective light-emitting diodes; that at least two different light functions are realized with a single reflector.
  • the primary optic in its geometrical configuration has a very direct influence on the beam shaping and thus on the emission characteristic, in particular with respect to the dipped beam.
  • the primary optics must therefore be designed in accordance with high precision together with the light-emitting diodes and arranged on the circuit board. A simplification of an LED light module for providing a low beam and a high beam via a common reflector is therefore desirable.
  • the object of the invention is the development of an LED light module with a plurality of light-emitting diodes, which radiate into a common reflector and generate different light functions, wherein the LED light module is to be designed simplified.
  • the possibility should be used to easily arrange further components on the circuit board, which can take an improved influence on the Einstrahl characterizing the light of the LEDs in the reflector.
  • the invention includes the technical teaching that a diaphragm element is provided, wherein the diaphragm element is arranged between the light-emitting diodes.
  • the core idea of the invention is the simple arrangement of a diaphragm element on the printed circuit board between the light-emitting diodes, such that the diaphragm element influences at least the beam path of the light of one of the two light-emitting diodes. Consequently, a dazzling function, which already takes place on the printed circuit board, can already be realized in a simple manner on a small scale, without requiring another must be arranged as macroscopic aperture element in the beam path of the light, which is generated with at least one of the two light-emitting diodes.
  • the arrangement of the diaphragm element on the circuit board may include, for example, a soldering.
  • the diaphragm element can be designed with corresponding solder pads or the like.
  • the diaphragm element can surround at least one of the light-emitting diodes or be arranged adjacent to it, so that a part of the light of the light-emitting diode, but at least a part of a scattered light, is shaded by the diaphragm element by the diaphragm element.
  • the light-emitting diodes are preferably arranged in front of one another.
  • the reflector can be located behind the light-emitting diodes, which is arranged in the common axis of the main emission direction.
  • the first light-emitting diode for generating at least part of a low-beam light in the main emission direction is arranged in front of the second light-emitting diode for generating at least part of a high beam on the printed circuit board.
  • the diaphragm element may have a curvature, wherein a front diaphragm edge of the diaphragm element in the beam path of the first light emitting diode has to generate at least a portion of a low beam.
  • a plurality of diaphragm elements are arranged in connection with the at least two light emitting diodes on the circuit board.
  • a heat sink is provided with further advantage, on which the printed circuit board with the LEDs and / or the reflector are added.
  • the reflector directly on the heat sink, wherein the circuit board does not necessarily have to be applied directly on the heat sink, and it can be provided a receiving plate, which is located between the circuit board and the heat sink.
  • the LED light module has a preferred embodiment with a reflector which forms a reflector shard, the reflector shard projecting beyond both LEDs on the emission side.
  • the reflector shard has a curvature pointing in the main emission direction.
  • a specific embodiment of the LED light module comprises a single first light-emitting diode for generating at least a portion of a low beam and a single second light emitting diode for generating at least a portion of a high beam, wherein both LEDs are associated with a single reflector, so recorded on the common circuit board, only two light-emitting diodes are.
  • the high beam can be generated with already only one LED, wherein according to a variant, the low beam is also generated by two or more light emitting diodes.
  • a further advantage is achieved in that the first light-emitting diode and the second light-emitting diode are set operable separately from one another.
  • the electrical connection of the light-emitting diodes on the common printed circuit board takes place in such a way that the light-emitting diodes can be operated independently of one another. If more than two light-emitting diodes are arranged on the printed circuit board, in particular if the low-beam light is generated by a plurality of light-emitting diodes, then all the light-emitting diodes can be controlled individually with particular advantage in order to form discrete light regions. In particular, the LED for the high beam of the LED for the low beam can be switched on, so that when a connection both LEDs are turned on for the generation of the high beam.
  • the LED light module is in particular designed so that the light emitting diodes are formed free of a primary optics and are adapted for direct irradiation in the reflector.
  • the diaphragm element replaces the primary optics, so that the diaphragm element is set up to influence the irradiation characteristic of at least one light of the light-emitting diodes in the common reflector.
  • the influencing takes place in particular in such a way that the diaphragm element shadows a portion of the light of the light emitting diode, which serves to provide the low beam.
  • the shaded area relates in particular to a difference range between the high beam and the low beam.
  • FIG. 1 shows a schematic view of an LED light module for a headlight for generating a high beam with a first light emitting diode and a low beam with a second light emitting diode
  • Figure 2 is an enlarged view of the arrangement of the two LEDs on a common circuit board and the arrangement of a diaphragm element according to the invention and
  • Figure 3 is a view of several LED light modules on a common heat sink.
  • a LED light module 1 with a plurality of light-emitting diodes 10, 1 1 is shown in a schematic representation.
  • the two light-emitting diodes 10, 11 are accommodated on a common printed circuit board 12.
  • a reflector 13 is shown, which is also accommodated on the printed circuit board 12.
  • the printed circuit board 12 is accommodated on a heat sink 19, so that the light-emitting diodes 10, 11 can be cooled in operation via the heat sink 19.
  • the first light-emitting diode 10 is configured to generate at least a portion of a low-beam light 14 and the light-emitting diode 1 1 is adapted to generate at least a portion of a high beam 15.
  • the main emission directions of the low beam 14 and the high beam 15 are formed along a main radiation direction 17, wherein the light emitting diode 10 for providing the low beam 14 in relation is arranged on the main emission direction behind the light emitting diode 1 1 for generating the high beam.
  • the aperture element 1 6 serves to influence the Einstrahl characterizing at least the low beam 14 in the reflector thirteenth
  • FIG 2 the arrangement of the aperture element 1 6 between the two light-emitting diodes 10, 1 1 in arrangement on the circuit board 12 is shown in a more detailed view.
  • the diaphragm element 16 has a curvature which points in the direction of the light-emitting diode 10 which is set up to produce the low-beam light 14.
  • the diaphragm element 1 6 comprises a front diaphragm edge 18. With the diaphragm edge 18, the desired shading in the emission characteristic of the light emitting diode 10 can be generated with appropriate contouring, for example, to shade scattered regions when the light emitting diode 10 is turned on to form the low beam 14.
  • the aperture element 1 6 can also serve to influence the Einstrahl characterizing the light in a manner not shown in detail, which is emitted via the light emitting diode 1 1 and irradiates in the reflector 13, which light forms at least a portion of a high beam 15.
  • FIG. 3 shows an arrangement of a plurality of LED light modules 1 on a common heat sink 19. In each case, two LED light modules 1 are accommodated on a common printed circuit board 12. Unlike shown in Figure 3, but it is also possible that a common circuit board 12 is formed for receiving all four LED light modules 1, or all of the circuit boards 12 of the LED light modules 1 may be of uniform design.
  • the LEDs 10, 1 1st are the LEDs 10, 1 1st Due to the arrangement of the LEDs 10, 1 1 in front of each other, only one LED 10, 1 1 is shown graphically.
  • the multiple arrangement of the LED light modules 1 can be installed in a manner shown, for example, in a headlight of a vehicle, and the individual LED light modules 1 can be operated together or discretely. In particular, it is thus possible to generate individual regions of the low beam 14 or of the high beam 15 with respective LED light modules 1.

Landscapes

  • 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 module d'éclairage à DEL (1) comprenant plusieurs diodes électroluminescentes (10, 11). Ces diodes électroluminescentes sont placées sur une carte de circuit imprimé (12) commune et il est prévu un réflecteur (13) qui s'étend au-dessus de la carte de circuit imprimé (12) et dans lequel de la lumière pouvant être produite au moyen des diodes électroluminescentes (10, 11) peut être projetée, une première diode électroluminescente (10) étant conçue pour produire au moins une partie d'un faisceau de croisement (14) et une deuxième diode électroluminescente (11) étant conçue pour produire au moins une partie d'un faisceau de route (15). Selon l'invention, il est prévu un élément écran (16), cet élément écran (16) étant placé entre les diodes électroluminescentes (10, 11).
PCT/EP2017/060172 2016-05-03 2017-04-28 Module d'éclairage à del pour phare destiné à produire un faisceau de route et un faisceau de croisement Ceased WO2017191044A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016108167.1 2016-05-03
DE102016108167.1A DE102016108167A1 (de) 2016-05-03 2016-05-03 LED-Lichtmodul für einen Scheinwerfer zur Erzeugung eines Fernlichtes und einen Abblendlichtes

Publications (1)

Publication Number Publication Date
WO2017191044A1 true WO2017191044A1 (fr) 2017-11-09

Family

ID=58640894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/060172 Ceased WO2017191044A1 (fr) 2016-05-03 2017-04-28 Module d'éclairage à del pour phare destiné à produire un faisceau de route et un faisceau de croisement

Country Status (2)

Country Link
DE (1) DE102016108167A1 (fr)
WO (1) WO2017191044A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3133901A1 (fr) * 2022-03-28 2023-09-29 Valeo Vision Module lumineux imageant la surface éclairée d’un collecteur avec bloqueur de rayons parasites extrudé

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3543594A1 (fr) * 2018-03-19 2019-09-25 ZKW Group GmbH Phares pour véhicule automobile
CN216047401U (zh) * 2021-08-31 2022-03-15 法雷奥照明湖北技术中心有限公司 车灯模组、机动车辆前照灯及机动车辆

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110026266A1 (en) * 2008-04-22 2011-02-03 Koito Manufacturing Co., Ltd. Light source module and vehicle lamp
EP2431657A2 (fr) * 2010-09-17 2012-03-21 Automotive Lighting Reutlingen GmbH Module de réflecteur d'un phare de véhicule automobile
DE102010047697A1 (de) * 2010-10-06 2012-04-12 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung zur Erzeugung einer blendfreien Fernlichtfunktion
EP2487408A2 (fr) * 2011-02-09 2012-08-15 Koito Manufacturing Co., Ltd. Dispositif d'éclairage automobile à plusieurs motifs de distribution de lumière dotés d'une lampe unique
JP2013171710A (ja) * 2012-02-21 2013-09-02 Stanley Electric Co Ltd 車両用前照灯
WO2014080747A1 (fr) * 2012-11-22 2014-05-30 市光工業株式会社 Phare de véhicule
US20140362572A1 (en) * 2013-06-06 2014-12-11 National Central University Led lighting device with high-low beams

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005049685A1 (de) 2005-10-14 2007-04-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Multifunktions-Kfz-Scheinwerfermodul insbesondere für den Frontbereich eines Fahrzeugs
DE102010045145A1 (de) * 2010-09-11 2012-03-15 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Fahrzeuge

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110026266A1 (en) * 2008-04-22 2011-02-03 Koito Manufacturing Co., Ltd. Light source module and vehicle lamp
EP2431657A2 (fr) * 2010-09-17 2012-03-21 Automotive Lighting Reutlingen GmbH Module de réflecteur d'un phare de véhicule automobile
DE102010047697A1 (de) * 2010-10-06 2012-04-12 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung zur Erzeugung einer blendfreien Fernlichtfunktion
EP2487408A2 (fr) * 2011-02-09 2012-08-15 Koito Manufacturing Co., Ltd. Dispositif d'éclairage automobile à plusieurs motifs de distribution de lumière dotés d'une lampe unique
JP2013171710A (ja) * 2012-02-21 2013-09-02 Stanley Electric Co Ltd 車両用前照灯
WO2014080747A1 (fr) * 2012-11-22 2014-05-30 市光工業株式会社 Phare de véhicule
US20140362572A1 (en) * 2013-06-06 2014-12-11 National Central University Led lighting device with high-low beams

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3133901A1 (fr) * 2022-03-28 2023-09-29 Valeo Vision Module lumineux imageant la surface éclairée d’un collecteur avec bloqueur de rayons parasites extrudé
WO2023186915A1 (fr) * 2022-03-28 2023-10-05 Valeo Vision Module lumineux avec une lentille imageant la surface eclairee d'un collecteur et un ecran bloquant les rayons directs parasites

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