EP1914472A1 - Dispositif d'éclairage pour véhicules - Google Patents

Dispositif d'éclairage pour véhicules Download PDF

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Publication number
EP1914472A1
EP1914472A1 EP07117934A EP07117934A EP1914472A1 EP 1914472 A1 EP1914472 A1 EP 1914472A1 EP 07117934 A EP07117934 A EP 07117934A EP 07117934 A EP07117934 A EP 07117934A EP 1914472 A1 EP1914472 A1 EP 1914472A1
Authority
EP
European Patent Office
Prior art keywords
air flow
light sources
cooling element
lighting device
cooling
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
EP07117934A
Other languages
German (de)
English (en)
Other versions
EP1914472B1 (fr
Inventor
Martin WÜLLER
Guido Buthe
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 EP1914472A1 publication Critical patent/EP1914472A1/fr
Application granted granted Critical
Publication of EP1914472B1 publication Critical patent/EP1914472B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • 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
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • 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
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • 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
    • 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 cooling element widened along a rear edge and / or a lateral edge thereof, so that the cooling effect of the cooling element can be varied depending on the number of light sources or the intended arrangement thereof.
  • the degree of cooling effect can be adapted to the photometric requirements.
  • a cooling element 16 may be formed with a plurality of inclined by an opening angle ⁇ arranged heat sinks 17.
  • the arrangement of the heat sink 17 and the cooling surfaces 18 extends in the direction R of the air flow and formation of an enlarged width B ', which extends perpendicular to the direction R of the air flow.
  • B1 ' At a first end 15 of the cooling element 16, this has a relatively small width B1 '; at a second end 19 of the cooling element 16, this has a relatively large width B2 '.
  • the lighting device is viewed from a rear side.
  • the light sources extend on a front side of the heat sink 18 and are hidden in FIG. 2 by the latter.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mathematical Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP07117934A 2006-10-19 2007-10-05 Dispositif d'éclairage pour véhicules Active EP1914472B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006049299A DE102006049299A1 (de) 2006-10-19 2006-10-19 Beleuchtungsvorrichtung für Fahrzeuge

Publications (2)

Publication Number Publication Date
EP1914472A1 true EP1914472A1 (fr) 2008-04-23
EP1914472B1 EP1914472B1 (fr) 2009-09-02

Family

ID=38846871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07117934A Active EP1914472B1 (fr) 2006-10-19 2007-10-05 Dispositif d'éclairage pour véhicules

Country Status (3)

Country Link
EP (1) EP1914472B1 (fr)
AT (1) ATE441811T1 (fr)
DE (2) DE102006049299A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002097884A1 (fr) * 2001-05-26 2002-12-05 Gelcore, Llc Module de del de grande puissance pour un eclairage
DE10227720A1 (de) 2002-06-21 2004-01-22 Audi Ag LED-Scheinwerfer
US20050201098A1 (en) 2004-03-10 2005-09-15 Dipenti Timothy A. Interior lamp
WO2005116520A1 (fr) * 2004-05-25 2005-12-08 Hella Kgaa Hueck & Co. Phare pour vehicule automobile
EP1643188A1 (fr) * 2004-09-29 2006-04-05 Osram Opto Semiconductors GmbH Arrangement de diodes électroluminiscentes avec des moyens de refroidissement et projecteur pour véhicule automobile

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005007501U1 (de) * 2005-05-12 2005-08-18 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugleuchte umfassend mindestens eine Leuchtdiode
FR2885990B1 (fr) * 2005-05-23 2007-07-13 Valeo Vision Sa Dispositif d'eclairage et/ou de signalisation a diodes electroluminescentes pour vehicule automobile.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002097884A1 (fr) * 2001-05-26 2002-12-05 Gelcore, Llc Module de del de grande puissance pour un eclairage
DE10227720A1 (de) 2002-06-21 2004-01-22 Audi Ag LED-Scheinwerfer
US20050201098A1 (en) 2004-03-10 2005-09-15 Dipenti Timothy A. Interior lamp
WO2005116520A1 (fr) * 2004-05-25 2005-12-08 Hella Kgaa Hueck & Co. Phare pour vehicule automobile
DE102004025623A1 (de) 2004-05-25 2005-12-15 Hella Kgaa Hueck & Co. Scheinwerfer für ein Kraftfahrzeug
EP1643188A1 (fr) * 2004-09-29 2006-04-05 Osram Opto Semiconductors GmbH Arrangement de diodes électroluminiscentes avec des moyens de refroidissement et projecteur pour véhicule automobile

Also Published As

Publication number Publication date
EP1914472B1 (fr) 2009-09-02
DE502007001438D1 (de) 2009-10-15
DE102006049299A1 (de) 2008-04-30
ATE441811T1 (de) 2009-09-15

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