DE102011004493A1 - lighting device - Google Patents
lighting device Download PDFInfo
- Publication number
- DE102011004493A1 DE102011004493A1 DE102011004493A DE102011004493A DE102011004493A1 DE 102011004493 A1 DE102011004493 A1 DE 102011004493A1 DE 102011004493 A DE102011004493 A DE 102011004493A DE 102011004493 A DE102011004493 A DE 102011004493A DE 102011004493 A1 DE102011004493 A1 DE 102011004493A1
- Authority
- DE
- Germany
- Prior art keywords
- heat sink
- lighting device
- fan
- electronics
- housing
- 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.)
- Withdrawn
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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
- 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
- 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
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
-
- 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
- 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
- F21V29/673—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for intake
-
- 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
- F21V29/677—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for discharging
-
- 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
- F21V29/717—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 using split or remote units thermally interconnected, e.g. by thermally conductive bars or heat pipes
-
- 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
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
- F21V29/767—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having directions perpendicular to the light emitting axis
-
- 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
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
-
- 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
Die Erfindung betrifft eine Beleuchtungseinrichtung mit einer Halbleiterlichtquellenanordnung (100), die thermisch mittels mindestens eines Wärmerohres (201, 202) an einen Kühlkörper (2) gekoppelt ist, und Belüftungsmittel für den Kühlkörper (2) vorgesehen sind, die mindestens einen Ventilator (3) umfassen, wobei die Beleuchtungseinrichtung eine Elektronik (4) zum Betrieb der Halbleiterlichtquellenanordnung (100) aufweist, die im Wirkungsbereich des mindestens einen Ventilators (3) angeordnet ist oder die thermisch mittels des mindestens einen Wärmerohres (201, 202) an den Kühlkörper (2) gekoppelt ist.The invention relates to a lighting device with a semiconductor light source arrangement (100), which is thermally coupled to a heat sink (2) by means of at least one heat pipe (201, 202), and ventilation means are provided for the heat sink (2), which have at least one fan (3). The lighting device comprises electronics (4) for operating the semiconductor light source arrangement (100), which is arranged in the effective range of the at least one fan (3) or which is thermally connected to the cooling body (2) by means of the at least one heat pipe (201, 202). is coupled.
Description
Die Erfindung betrifft eine Beleuchtungseinrichtung gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a lighting device according to the preamble of patent claim 1.
I. Stand der TechnikI. State of the art
Eine derartige Beleuchtungseinrichtung ist beispielsweise in der Offenlegungsschrift
II. Darstellung der ErfindungII. Presentation of the invention
Es ist Aufgabe der Erfindung, eine gattungsgemäße Beleuchtungseinrichtung bereitzustellen, die eine Elektronik zum Betrieb der Halbleiterlichtquellen umfasst und zusätzlich zur Kühlung der Halbleiterlichtquellen auch eine zuverlässige Kühlung der zum Betrieb der Halbleiterlichtquellen erforderlichen Elektronik ermöglicht.It is an object of the invention to provide a generic illumination device, which includes electronics for operating the semiconductor light sources and in addition to the cooling of the semiconductor light sources also allows reliable cooling of the electronics required for the operation of the semiconductor light sources.
Diese Aufgabe wird erfindungsgemäß durch eine Beleuchtungseinrichtung mit den Merkmalen aus dem Patentanspruch 1 gelöst. Besonders vorteilhafte Ausführungen der Erfindung sind in den abhängigen Patentansprüchen beschrieben.This object is achieved by a lighting device with the features of claim 1. Particularly advantageous embodiments of the invention are described in the dependent claims.
Die erfindungsgemäße Beleuchtungseinrichtung besitzt eine Halbleiterlichtquellenanordnung, die thermisch mittels mindestens eines Wärmerohres an einen Kühlkörper gekoppelt ist, und Belüftungsmittel für den Kühlkörper, die mindestens einen Ventilator umfassen, sowie eine Elektronik zum Betrieb der Halbleiterlichtquellenanordnung, die im Wirkungsbereich des mindestens einen Ventilators angeordnet ist oder die thermisch mittels des mindestens einen Wärmerohrs an den Kühlkörper gekoppelt ist. Dadurch wird eine effiziente Kühlung sowohl der Halbleiterlichtquellen als auch der zum Betrieb der Halbleiterlichtquellen erforderlichen Elektronik ermöglicht. Außerdem bilden bei der erfindungsgemäßen Beleuchtungseinheit die Halbleiterlichtquellen und die ihnen zugeordnete Elektronik eine Baueinheit, so dass die erfindungsgemäße Beleuchtungseinheit als Modul in einem Fahrzeugscheinwerfer, beispielsweise zum Erzeugen von Abblendlicht, Fernlicht, Nebellicht, Dauerfahrlicht, Positionslicht und Tagfahrlicht, verwendbar ist und im Fall eines Defekts auf einfache Weise gegen eine andere baugleiche Beleuchtungseinheit ausgetauscht werden kann. Die von den Halbleiterlichtquellen während ihres Betriebs erzeugte Wärme wird mittels des mindestens einen Wärmerohres zu dem Kühlkörper geleitet und über diesen unter Mitwirkung des mindestens einen Ventilators an die Umgebung abgeführt. Da die Elektronik im Wirkungsbereich des mindestens einen Ventilators angeordnet ist oder thermisch mittels des mindestens einen Wärmerohres an den Kühlkörper gekoppelt ist, wird die von der Elektronik generierte Wärme ebenfalls über den Kühlkörper am die Umgebung abgeführt.The illumination device according to the invention has a semiconductor light source arrangement, which is thermally coupled by means of at least one heat pipe to a heat sink, and ventilation means for the heat sink, comprising at least one fan, as well as electronics for operating the semiconductor light source arrangement, which is arranged in the area of action of the at least one fan or thermally coupled by means of the at least one heat pipe to the heat sink. This enables efficient cooling of both the semiconductor light sources and the electronics required to operate the semiconductor light sources. In addition, in the illumination unit according to the invention, the semiconductor light sources and their associated electronics form a structural unit, so that the illumination unit according to the invention can be used as a module in a vehicle headlamp, for example to produce low beam, high beam, fog light, continuous running light, position light and daytime running light, and in the case of a defect can be easily replaced with another identical lighting unit. The heat generated by the semiconductor light sources during their operation is conducted by means of the at least one heat pipe to the heat sink and discharged via this with the cooperation of the at least one fan to the environment. Since the electronics are arranged in the area of action of the at least one fan or are thermally coupled to the heat sink by means of the at least one heat pipe, the heat generated by the electronics is likewise dissipated via the heat sink to the surroundings.
Der Begriff Halblichtquellenanordnung bezeichnet eine Anordnung von einer oder mehreren Leuchtdioden oder Laserdioden, die während ihres Betriebs, gegebenenfalls unter Mitwirkung von Leuchtstoffen, weißes oder farbiges Licht oder Infrarotstrahlung emittieren. Der Begriff Wärmerohr bezeichnet eine Heatpipe, bei der unter Ausnutzung des Kapillareffekts die kondensierte Flüssigkeit zum Verdampfer zurückgeführt wird, oder ein Thermosiphon, bei dem unter Ausnutzung der Schwerkraft die kondensierte Flüssigkeit zum Verdampfer zurückgeführt wird.The term half-light source arrangement denotes an arrangement of one or more light-emitting diodes or laser diodes which emit white or colored light or infrared radiation during their operation, if appropriate with the participation of phosphors. The term heat pipe refers to a heat pipe in which the condensed liquid is recycled to the evaporator by utilizing the capillary effect, or a thermosyphon in which the condensed liquid is returned to the evaporator by utilizing gravity.
Die zum Betrieb der Halbleiterlichtquellen erforderliche Elektronik ist vorteilhafterweise auf einem Träger, beispielsweise auf einer Montageplatte oder einem Leiterrahmen (Leadframe) angeordnet, um eine einfache Montage und Kontaktierung sowie räumlich kompakte Anordnung der Komponenten der Elektronik zu ermöglichen.The electronics required for operating the semiconductor light sources are advantageously arranged on a carrier, for example on a mounting plate or a leadframe, in order to enable simple mounting and contacting as well as spatially compact arrangement of the components of the electronics.
Der Träger für die Elektronik weist vorzugsweise mindestens eine dem mindestens einen Ventilator zugewandte Montagefläche auf, auf der Elektronikkomponenten angeordnet sind, um eine optimale Belüftung der Elektronikkomponenten mittels des mindestens einen Ventilators zu gewährleisten. Vorzugsweise ist der Träger für die Elektronik zusätzlich thermisch an das mindestens eine Wärmerohr gekoppelt, um die von der Elektronik erzeugte Wärme zusätzlich auch über das Wärmerohr an den Kühlkörper abzuführen. Die von der Elektronik erzeugte Wärme wird vorzugsweise mittels des mindestens einen Ventilators als auch mittels des mindestens einen Wärmerohrs und des Kühlkörpers an die Umgebung abgeführt.The support for the electronics preferably has at least one mounting surface facing the at least one fan, on which electronic components are arranged in order to ensure optimum ventilation of the electronic components by means of the at least one fan. Preferably, the support for the electronics is additionally thermally coupled to the at least one heat pipe in order to additionally dissipate the heat generated by the electronics also via the heat pipe to the heat sink. The heat generated by the electronics is preferably dissipated by means of the at least one fan as well as by means of the at least one heat pipe and the heat sink to the environment.
Vorteilhafterweise umfasst die Halbleiterlichtquellenanordnung der erfindungsgemäßen Beleuchtungseinrichtung eine Trägerplatte, vorzugsweise eine Metallkernplatine, auf deren Oberfläche die Halbleiterlichtquellen angeordnet sind und die thermisch an das mindestens eine Wärmerohr gekoppelt ist. Die Trägerplatte ermöglicht eine einfache Montage, elektrische Kontaktierung und thermische Kopplung der Halbleiterlichtquellen an eine Kühlvorrichtung.Advantageously, the semiconductor light source arrangement of the illumination device according to the invention comprises a support plate, preferably a metal core board, on the surface of which the semiconductor light sources are arranged and which is thermally coupled to the at least one heat pipe. The carrier plate allows easy mounting, electrical contacting and thermal coupling of the semiconductor light sources to a cooling device.
Die erfindungsgemäße Beleuchtungseinrichtung weist vorteilhafterweise ein Gehäuse auf, in dessen Innenraum die Elektronik und der mindestens eine Ventilator angeordnet sind. Das Gehäuse schützt die Komponenten der Elektronik vor Schmutz und Beschädigung und ermöglicht ferner eine elektromagnetische Abschirmung der Elektronik. Zwecks elektromagnetischer Abschirmung der Elektronik kann das Gehäuse auf seiner Innenseite oder Außenseite metallisiert sein und gegebenenfalls mit einem internen Massebezugspotenzial der Elektronik verbunden sein.The illumination device according to the invention advantageously has a housing, in the interior of which the electronics and the at least one fan are arranged. The housing protects the components of the electronics from dirt and damage and also allows electromagnetic shielding of the electronics. For electromagnetic shielding of the electronics, the housing may be metallized on its inside or outside and optionally connected to an internal ground reference potential of the electronics.
Der Kühlkörper der erfindungsgemäßen Beleuchtungseinrichtung weist vorteilhafterweise Kühlrippen oder durch Schlitze voneinander getrennte Lamellen auf, um eine optimale Belüftung mit Hilfe des mindestens einen Ventilators zu gewährleisten.The heat sink of the illumination device according to the invention advantageously has cooling fins or louvres separated from one another by slots in order to ensure optimum ventilation with the aid of the at least one fan.
Vorzugsweise besitzt das Gehäuse mindestens eine Wand mit einer Aussparung für die Kühlrippen oder für die durch Schlitze getrennte Lamellen des Kühlkörpers, um eine Belüftung der im Innenraum angeordneten Elektronik mit Hilfe des mindestens einen Ventilators zu ermöglichen.Preferably, the housing has at least one wall with a recess for the cooling fins or slits of the heat sink separated by slits to allow ventilation of the electronics arranged in the interior with the aid of the at least one fan.
Gemäß einem bevorzugten Ausführungsbeispiel der erfindungsgemäßen Beleuchtungseinrichtung weisen zwei einander gegenüber liegende Wände des Gehäuses Aussparungen für die Kühlrippen bzw. Lamellen des Kühlkörpers auf, um durch die Schlitzen zwischen den Kühlrippen bzw. Lamellen des Kühlkörpers einen Luftstrom in den Innenraum des Gehäuses zu erlauben.According to a preferred embodiment of the illumination device according to the invention have two opposing walls of the housing recesses for the cooling fins or fins of the heat sink to allow through the slots between the cooling fins or fins of the heat sink, a flow of air into the interior of the housing.
Zwecks optimaler Belüftung der Elektronik und des Kühlkörpers umschließen der Träger für die Elektronik und die Kühlrippen bzw. Lamellen des Kühlkörpers vorzugsweise den mindestens einen Ventilator.For optimal ventilation of the electronics and the heat sink, the support for the electronics and the cooling fins or fins of the heat sink preferably surround the at least one fan.
III. Beschreibung des bevorzugten AusführungsbeispielsIII. Description of the Preferred Embodiment
Nachstehend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:The invention will be explained in more detail below with reference to a preferred embodiment. Show it:
Die
Diese Beleuchtungseinrichtung besitzt ein im Wesentlichen quaderförmiges Gehäuse
Innerhalb des Gehäuses
Der Kühlkörper
Die räumliche Anordnung des Kühlkörpers
Die Elektronik
Die
Die Elektronik
Das Gehäuse
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102007028301 A1 [0002] DE 102007028301 A1 [0002]
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011004493A DE102011004493A1 (en) | 2011-02-22 | 2011-02-22 | lighting device |
PCT/EP2012/052682 WO2012113705A2 (en) | 2011-02-22 | 2012-02-16 | Lighting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011004493A DE102011004493A1 (en) | 2011-02-22 | 2011-02-22 | lighting device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011004493A1 true DE102011004493A1 (en) | 2012-08-23 |
Family
ID=45876678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011004493A Withdrawn DE102011004493A1 (en) | 2011-02-22 | 2011-02-22 | lighting device |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102011004493A1 (en) |
WO (1) | WO2012113705A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013217597A1 (en) | 2013-09-04 | 2015-03-05 | Osram Gmbh | lighting device |
DE102015218021A1 (en) | 2014-10-07 | 2016-04-07 | Osram Gmbh | lighting device |
EP3225945B1 (en) * | 2016-03-31 | 2018-12-12 | Hoya Candeo Optronics Corporation | Heat radiating apparatus and light illuminating apparatus with the same |
JP6423900B2 (en) * | 2016-03-31 | 2018-11-14 | Hoya Candeo Optronics株式会社 | Heat dissipation device and light irradiation device including the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE102007055165A1 (en) * | 2007-11-19 | 2009-05-20 | Osram Gesellschaft mit beschränkter Haftung | LED headlights |
DE102008013604A1 (en) * | 2008-03-11 | 2009-09-17 | Automotive Lighting Reutlingen Gmbh | Electronic controller cooling device for illuminating device i.e. headlight, of motor vehicle, has air discharge opening and air intake opening for realizing forced heat exchange between controller and interior of illuminating device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005005753A1 (en) * | 2005-02-07 | 2006-08-10 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Lighting device for headlamp of vehicle, has light emitting diode and cooling unit e.g. Peltier unit, cooling diode, where unit is provided with connectors or heat pipe unit for liquid coolant e.g. water, to flow through cooling unit |
CN201028443Y (en) * | 2006-08-03 | 2008-02-27 | 陈友余 | Focusing and cooling integrated device for high power light-emitting diode light source |
US20090059594A1 (en) * | 2007-08-31 | 2009-03-05 | Ming-Feng Lin | Heat dissipating apparatus for automotive LED lamp |
CN101871600B (en) * | 2010-03-13 | 2014-02-05 | 中山伟强科技有限公司 | LED street lamp bulb |
-
2011
- 2011-02-22 DE DE102011004493A patent/DE102011004493A1/en not_active Withdrawn
-
2012
- 2012-02-16 WO PCT/EP2012/052682 patent/WO2012113705A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE102007055165A1 (en) * | 2007-11-19 | 2009-05-20 | Osram Gesellschaft mit beschränkter Haftung | LED headlights |
DE102008013604A1 (en) * | 2008-03-11 | 2009-09-17 | Automotive Lighting Reutlingen Gmbh | Electronic controller cooling device for illuminating device i.e. headlight, of motor vehicle, has air discharge opening and air intake opening for realizing forced heat exchange between controller and interior of illuminating device |
Also Published As
Publication number | Publication date |
---|---|
WO2012113705A3 (en) | 2012-10-18 |
WO2012113705A2 (en) | 2012-08-30 |
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