EP2223014A1 - Led headlight - Google Patents
Led headlightInfo
- Publication number
- EP2223014A1 EP2223014A1 EP08852951A EP08852951A EP2223014A1 EP 2223014 A1 EP2223014 A1 EP 2223014A1 EP 08852951 A EP08852951 A EP 08852951A EP 08852951 A EP08852951 A EP 08852951A EP 2223014 A1 EP2223014 A1 EP 2223014A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- led
- headlight
- housing
- 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
Links
- 238000001816 cooling Methods 0.000 claims abstract description 53
- 229910052724 xenon Inorganic materials 0.000 claims description 11
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 6
- 239000012809 cooling fluid Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
-
- 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
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/30—Ventilation or drainage of lighting devices
- F21S45/33—Ventilation or drainage of lighting devices specially adapted for headlamps
-
- 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
- F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
-
- 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
- F21V29/56—Cooling arrangements using liquid coolants
-
- 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
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- 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]
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007055165A DE102007055165A1 (en) | 2007-11-19 | 2007-11-19 | LED headlights |
PCT/EP2008/009725 WO2009065548A1 (en) | 2007-11-19 | 2008-11-17 | Led headlight |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2223014A1 true EP2223014A1 (en) | 2010-09-01 |
EP2223014B1 EP2223014B1 (en) | 2015-11-04 |
Family
ID=40185211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08852951.6A Active EP2223014B1 (en) | 2007-11-19 | 2008-11-17 | Led headlight |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100277941A1 (en) |
EP (1) | EP2223014B1 (en) |
CN (1) | CN101868671B (en) |
DE (1) | DE102007055165A1 (en) |
WO (1) | WO2009065548A1 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101043278B1 (en) * | 2009-08-26 | 2011-06-21 | 현대모비스 주식회사 | Head lamp for vehicle |
DE102009047569A1 (en) * | 2009-12-07 | 2011-06-09 | Osram Gesellschaft mit beschränkter Haftung | Light i.e. LED, manufacturing method, involves providing integral part in contact with another integral part during arrangement of heat conductive elements, so that heat is discharged from driver circuit during actuation of light |
DE102009060434B4 (en) * | 2009-12-22 | 2013-07-04 | Trilux Gmbh & Co. Kg | Closed LED lamp with thermal coupling element |
DE102010007687A1 (en) * | 2010-02-08 | 2011-08-11 | Siemens Aktiengesellschaft, 80333 | LED lamp with heat pipe as cooling |
DE102010002664A1 (en) | 2010-03-08 | 2011-09-08 | Osram Gesellschaft mit beschränkter Haftung | Light emitting diode lamp, particularly light emitting diode vehicle headlamp, comprises light emitting disk, and heat sink for light emitting diode, where airflow with waste heat from heat sink is directed directly on light emitting disk |
US20110227507A1 (en) * | 2010-03-18 | 2011-09-22 | Glp German Light Products Gmbh | Illumination apparatus |
DE102011011700A1 (en) | 2011-02-18 | 2012-08-23 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | LED headlight e.g. LED-matrix headlight, for motor car, has light source i.e. LED, connected with cooling body in heat conductive manner, and heat pipe for connecting cooling body to area of outer skin of vehicle or structure of vehicle |
DE102011004493A1 (en) * | 2011-02-22 | 2012-08-23 | Osram Ag | lighting device |
DE102011120123A1 (en) | 2011-12-03 | 2013-06-06 | Gm Global Technology Operations, Llc | LED-headlight i.e. front headlight, for use in motor car, has light source arranged on printed circuit board that is arranged in housing, where areas of cooling body stay in contact with liquid cooling medium provided in container |
SI24505A (en) * | 2013-10-18 | 2015-04-30 | Hella Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O. | a lamp of a motor vehicle with an improved outlet drawing heat |
KR102234377B1 (en) * | 2014-07-31 | 2021-03-31 | 엘지이노텍 주식회사 | Lamp for vehicle |
WO2016020218A1 (en) * | 2014-08-08 | 2016-02-11 | Koninklijke Philips N.V. | Led device with flexible thermal interface |
DE102014217043A1 (en) * | 2014-08-27 | 2016-03-03 | Volkswagen Aktiengesellschaft | Automotive lighting device |
DE102015114360A1 (en) * | 2015-08-28 | 2017-03-02 | Hella Kgaa Hueck & Co. | Headlamp with improved cooling of semiconductor light sources |
AT518977B1 (en) * | 2016-11-17 | 2018-03-15 | Zkw Group Gmbh | Heat sink with variable thermal resistance |
DE102017114466A1 (en) * | 2017-06-29 | 2019-01-03 | Automotive Lighting Reutlingen Gmbh | Aluminum heat sink for dissipating heat from semiconductor light sources and automotive lighting device with such a heat sink |
EP3499119A1 (en) * | 2017-12-18 | 2019-06-19 | Covestro Deutschland AG | Device for dissipating heat from a heat source and use of this device |
CN110375267A (en) * | 2019-07-02 | 2019-10-25 | 重庆长安汽车股份有限公司 | A kind of automobile lamp |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1357335A2 (en) * | 2002-04-23 | 2003-10-29 | Nichia Corporation | Lighting apparatus |
WO2004055433A1 (en) * | 2002-12-16 | 2004-07-01 | Daimlerchrysler Ag | Headlight unit for a motor vehicle |
FR2889291A1 (en) * | 2005-07-28 | 2007-02-02 | Koito Mfg Co Ltd | Vehicle lamp e.g. headlamp, for forming low-beam distribution pattern, has metal bracket tiltably supported by lamp body with heat sink, where heat sink and bracket are connected by flexible heat pipe with high thermal conductivity |
DE102006001711A1 (en) * | 2006-01-13 | 2007-07-26 | Audi Ag | Lighting device for motor vehicle, has second cooling body provided with heat dissipating elements protruding on side and elements of both bodies intervene into each other and so formed that both bodies are movable against each other |
JP2009087620A (en) * | 2007-09-28 | 2009-04-23 | Toyoda Gosei Co Ltd | Headlight for vehicle |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4102240B2 (en) * | 2003-04-08 | 2008-06-18 | 株式会社小糸製作所 | Vehicle headlamp |
DE102004025640A1 (en) * | 2004-05-25 | 2005-12-22 | Hella Kgaa Hueck & Co. | Motor vehicle headlight, has pump with which cooling medium is induced through conduit, and heat exchanger arranged at illuminant, where drive of pump is not arranged within housing but in proximity to illuminant |
DE102004047324A1 (en) * | 2004-09-29 | 2006-04-13 | Osram Opto Semiconductors Gmbh | LED array |
DE102004048134A1 (en) * | 2004-10-02 | 2006-04-06 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
WO2006052022A1 (en) * | 2004-11-12 | 2006-05-18 | Showa Denko K.K. | Automotive lighting fixture and lighting device |
DE202005007501U1 (en) * | 2005-05-12 | 2005-08-18 | Automotive Lighting Reutlingen Gmbh | Vehicle light, consists of at least one light diode chip mechanically and electrically fixed to a circuit board |
DE102006036058A1 (en) * | 2006-08-02 | 2008-02-14 | Audi Ag | Illumination device for motor vehicle, comprises carrier flowing through cooling medium circulating through cycle that is in heat conducting connection with light emitting diode, where carrier is implemented as flat pipe |
US20080089070A1 (en) * | 2006-10-12 | 2008-04-17 | Chin-Wen Wang | Led lamp module with adjustable illuminating angle |
DE202006019381U1 (en) * | 2006-12-22 | 2007-02-22 | Lin, Chun-Hen, Shulin City | Water cooling system is used to reduce temperature of light emitting diodes used on an automobile headlight |
US20080247177A1 (en) * | 2007-02-09 | 2008-10-09 | Toyoda Gosei Co., Ltd | Luminescent device |
DE102007028301A1 (en) * | 2007-06-20 | 2007-12-13 | Daimlerchrysler Ag | Vehicle headlight has housing and semiconductor light source, which is arranged in housing and is thermally connected with heat sink by heat pipe |
-
2007
- 2007-11-19 DE DE102007055165A patent/DE102007055165A1/en not_active Withdrawn
-
2008
- 2008-11-17 CN CN200880116796.XA patent/CN101868671B/en active Active
- 2008-11-17 WO PCT/EP2008/009725 patent/WO2009065548A1/en active Application Filing
- 2008-11-17 US US12/743,575 patent/US20100277941A1/en not_active Abandoned
- 2008-11-17 EP EP08852951.6A patent/EP2223014B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1357335A2 (en) * | 2002-04-23 | 2003-10-29 | Nichia Corporation | Lighting apparatus |
WO2004055433A1 (en) * | 2002-12-16 | 2004-07-01 | Daimlerchrysler Ag | Headlight unit for a motor vehicle |
FR2889291A1 (en) * | 2005-07-28 | 2007-02-02 | Koito Mfg Co Ltd | Vehicle lamp e.g. headlamp, for forming low-beam distribution pattern, has metal bracket tiltably supported by lamp body with heat sink, where heat sink and bracket are connected by flexible heat pipe with high thermal conductivity |
DE102006001711A1 (en) * | 2006-01-13 | 2007-07-26 | Audi Ag | Lighting device for motor vehicle, has second cooling body provided with heat dissipating elements protruding on side and elements of both bodies intervene into each other and so formed that both bodies are movable against each other |
JP2009087620A (en) * | 2007-09-28 | 2009-04-23 | Toyoda Gosei Co Ltd | Headlight for vehicle |
Non-Patent Citations (1)
Title |
---|
See also references of WO2009065548A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101868671B (en) | 2014-04-23 |
DE102007055165A1 (en) | 2009-05-20 |
CN101868671A (en) | 2010-10-20 |
WO2009065548A1 (en) | 2009-05-28 |
EP2223014B1 (en) | 2015-11-04 |
US20100277941A1 (en) | 2010-11-04 |
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Legal Events
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