DE102010002664A1 - 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 - Google Patents
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 Download PDFInfo
- Publication number
- DE102010002664A1 DE102010002664A1 DE102010002664A DE102010002664A DE102010002664A1 DE 102010002664 A1 DE102010002664 A1 DE 102010002664A1 DE 102010002664 A DE102010002664 A DE 102010002664A DE 102010002664 A DE102010002664 A DE 102010002664A DE 102010002664 A1 DE102010002664 A1 DE 102010002664A1
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- Germany
- Prior art keywords
- light emitting
- heat sink
- led
- emitting diode
- fan
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- 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.)
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Classifications
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- 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]
-
- 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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/19—Attachment of light sources or lamp holders
- F21S43/195—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
- 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
- F21S45/435—Forced cooling using gas circulating the gas within a closed system
-
- 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
- F21S45/49—Attachment of the cooling means
-
- 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
- F21S45/60—Heating of lighting devices, e.g. for demisting
-
- 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
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
Technisches GebietTechnical area
Die Erfindung geht von einer LED-Leuchte mit einer Kühlung aus.The invention is based on an LED lamp with a cooling.
Stand der TechnikState of the art
Dokument
Weiterhin sind gemäß dem Stand der Technik zur Beheizung von Lichtaustrittsscheiben derartiger Leuchten zusätzliche Heiz- und Luftumwälzungssysteme bekannt. Diese dienen z. B. bei Fahrzeugscheinwerfern zum Entfernen von Beschlag oder zum Enteisen der Lichtaustrittsscheibe.Furthermore, according to the prior art for the heating of light exit windows of such lights additional heating and air circulation systems are known. These serve z. B. in vehicle headlamps to remove fogging or deicing the light exit window.
Nachteilig an derartigen LED-Leuchten ist der vorrichtungstechnische Aufwand der Heiz- und Luftumwälzungssysteme.A disadvantage of such LED lights is the device technical effort of the heating and air circulation systems.
Darstellung der ErfindungPresentation of the invention
Die Aufgabe der vorliegenden Erfindung ist es, den vorrichtungstechnischen Aufwand für LED-Leuchten mit beheizbaren Lichtaustrittsscheiben zu verringern.The object of the present invention is to reduce the device complexity for LED lights with heated light exit windows.
Diese Aufgabe wird gelöst durch eine LED-Leuchte mit den Merkmalen des Anspruchs 1.This object is achieved by an LED lamp with the features of claim 1.
Die erfindungsgemäße LED-Leuchte hat eine Lichtaustrittsscheibe und einen Kühlkörper für zumindest eine LED, wobei ein Luftstrom mit Abwärme von der LED bzw. vom Kühlkörper direkt auf die Lichtaustrittsscheibe gerichtet ist. Damit werden Synergieeffekte der LED-Kühlung und der Heizung der Lichtaustrittsscheibe genutzt, und der vorrichtungstechnische Aufwand der LED-Leuchte ist reduziert.The LED lamp according to the invention has a light exit plate and a heat sink for at least one LED, wherein an air flow is directed with waste heat from the LED or from the heat sink directly to the light exit plate. This synergy effects of the LED cooling and the heating of the light exit window are used, and the device complexity of the LED light is reduced.
Besonders vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen.Particularly advantageous embodiments can be found in the dependent claims.
Es wird besonders bevorzugt, wenn der Kühlkörper mit einem Lüfter in Wirkverbindung steht, über den der Luftstrom erzeugt wird. Damit kann die Abwärme zielgerichtet auf die Lichtaustrittsscheibe gerichtet werden.It is particularly preferred if the heat sink is in operative connection with a fan, via which the air flow is generated. Thus, the waste heat can be targeted to the light exit plate.
Wenn der Lüfter direkt am Kühlkörper befestigt ist, verringert sich der vorrichtungstechnische Aufwand der LED-Leuchte.If the fan is attached directly to the heat sink, the device complexity of the LED light decreases.
Es wird bevorzugt, wenn der Kühlkörper Kühlrippen hat, zwischen denen zur Abschlussscheibe gerichtete Luftaustrittsöffnungen angeordnet sind. Dadurch kann der Luftstrom die Abwärme effektiv übernehmen und direkt zur Lichtaustrittsscheibe transportieren.It is preferred if the heat sink has cooling fins between which air outlet openings directed towards the cover pane are arranged. As a result, the air flow can effectively absorb the waste heat and transport it directly to the light exit window.
Um den vom Lüfter erzeugten Luftstrom aufzufächern bzw. zu verbreitern, können Abstände zwischen den Kühlrippen in der Nähe des Lüfters geringer sein, als in der Nähe der Abschlussscheibe. Damit kann eine Lichtaustrittsscheibe beheizt werden, die breiter als der Kühlkörper ist.In order to fan out or widen the air flow generated by the fan, gaps between the cooling fins near the fan may be smaller than in the vicinity of the lens. Thus, a light exit plate can be heated, which is wider than the heat sink.
Bei einer besonders bevorzugten Weiterbildung ist die LED-Leuchte ein Fahrzeugscheinwerfer, wobei die Lichtaustritts- bzw. Abschlussscheibe in Fahrtrichtung des Fahrzeugs vorne angeordnet ist. Bei derartigen LED-Leuchten ist die erfindungsgemäß beheizte Lichtaustritts- bzw. Abschlussscheibe besonders wichtig, z. B. um eine schnelle Enteisung oder Entfernung von Beschlag am Beginn einer Fahrt zu erreichen.In a particularly preferred development, the LED light is a vehicle headlight, wherein the light outlet or lens is arranged in the direction of travel of the vehicle forward. In such LED lights inventively heated Lichtaustritts- or lens is particularly important, for. B. to achieve a fast deicing or removal of fog at the beginning of a ride.
Bei einer bevorzugten Weiterbildung bildet ein Gehäuseabschnitt zusammen mit der Lichtaustrittsscheibe ein geschlossenes Scheinwerfergehäuse. Dieses umschließt ein LED-Modul mit der zumindest einen LED und den am LED-Modul anliegenden Kühlkörper und den Lüfter. Damit geht die Abwärme des LED-Moduls langsamer an die Außen- bzw. Umgebungsluft verloren, wodurch die Heizleistung verbessert ist.In a preferred development, a housing section forms a closed headlight housing together with the light exit window. This encloses an LED module with the at least one LED and the heat sink applied to the LED module and the fan. Thus, the waste heat of the LED module is lost slower to the outside or ambient air, whereby the heating power is improved.
Bei einer bevorzugten Weiterbildung ist im Scheinwerfergehäuse ein Reflektor, insbesondere ein Abblendreflektor angeordnet, an dem das LED-Modul befestigt ist.In a preferred embodiment, a reflector, in particular a Abblendreflektor is arranged in the headlight housing, to which the LED module is attached.
Dabei kann das LED-Modul an einer Oberseite des Reflektors befestigt sein, wobei die zumindest eine LED zum Reflektor abstrahlt.In this case, the LED module can be attached to an upper side of the reflector, wherein the at least one LED radiates to the reflector.
Der Kühlkörper kann an einer vom Reflektor abgewandten Seite des LED-Moduls an diesem Wärme leitend befestigt sein.The heat sink may be conductively attached to a heat away from the reflector side of the LED module at this.
Bei einem ersten bevorzugten Ausführungsbeispiel ist der Lüfter an einer von der Lichtaustrittsscheibe abgewandten Seite des Kühlkörpers befestigt.In a first preferred embodiment, the fan is attached to a side facing away from the light exit plate side of the heat sink.
Bei einem zweiten bevorzugten Ausführungsbeispiel ist der Lüfter an einer vom LED-Modul abgewandten Seite des Kühlkörpers befestigt.In a second preferred embodiment, the fan is attached to a side remote from the LED module of the heat sink.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Im Folgenden soll die Erfindung anhand von Ausführungsbeispielen näher erläutert werden. Die Figuren zeigen:In the following, the invention will be explained in more detail with reference to exemplary embodiments. The figures show:
Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention
Im Inneren des Scheinwerfergehäuses
An der (in
Im Betrieb des erfindungsgemäßen LED-Fahrzeugscheinwerfers wird die Wärme der Hochleistungs-LED's über das LED-Modul
Dabei ist eine konkave Reflektor-Wölbung
Weiterhin ist die oberhalb des Abblend-Reflektors
Der Kühlkörper
Zwischen dem Lüfter
Der etwa quadratische Rahmen
Am LED-Modul
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 102007055165 A1 [0002] DE 102007055165 A1 [0002]
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102010002664A DE102010002664A1 (en) | 2010-03-08 | 2010-03-08 | 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 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010002664A DE102010002664A1 (en) | 2010-03-08 | 2010-03-08 | 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 |
Publications (1)
Publication Number | Publication Date |
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DE102010002664A1 true DE102010002664A1 (en) | 2011-09-08 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102010002664A Withdrawn DE102010002664A1 (en) | 2010-03-08 | 2010-03-08 | 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 |
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DE (1) | DE102010002664A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103090289A (en) * | 2011-10-31 | 2013-05-08 | Sl株式会社 | Automotive headlamp |
JP2013187081A (en) * | 2012-03-08 | 2013-09-19 | Osram Gmbh | Led light source module for headlight |
WO2014190368A1 (en) * | 2013-05-29 | 2014-12-04 | Zizala Lichtsysteme Gmbh | Lighting device for a vehicle headlight |
WO2015051887A1 (en) * | 2013-10-12 | 2015-04-16 | Daimler Ag | Illumination apparatus for a vehicle |
DE102014102870A1 (en) | 2014-03-05 | 2015-09-10 | Hella Kgaa Hueck & Co. | Semiconductor light module for a headlight in a compact design |
EP2587123A3 (en) * | 2011-10-31 | 2015-11-04 | SL Corporation | Automotive headlamp |
EP3418630A1 (en) * | 2017-06-23 | 2018-12-26 | Valeo Vision | Light module for a motor vehicle |
FR3087618A1 (en) * | 2018-10-23 | 2020-04-24 | Valeo Systemes Thermiques | THERMAL DISSIPATION DEVICE, PARTICULARLY FOR AN AIR FLOW GENERATION DEVICE |
EP3671023A1 (en) * | 2018-12-20 | 2020-06-24 | Valeo Vision | Heat exchanger for electronic components |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007055165A1 (en) | 2007-11-19 | 2009-05-20 | Osram Gesellschaft mit beschränkter Haftung | LED headlights |
-
2010
- 2010-03-08 DE DE102010002664A patent/DE102010002664A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007055165A1 (en) | 2007-11-19 | 2009-05-20 | Osram Gesellschaft mit beschränkter Haftung | LED headlights |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103090289A (en) * | 2011-10-31 | 2013-05-08 | Sl株式会社 | Automotive headlamp |
EP2587123A3 (en) * | 2011-10-31 | 2015-11-04 | SL Corporation | Automotive headlamp |
JP2013187081A (en) * | 2012-03-08 | 2013-09-19 | Osram Gmbh | Led light source module for headlight |
WO2014190368A1 (en) * | 2013-05-29 | 2014-12-04 | Zizala Lichtsysteme Gmbh | Lighting device for a vehicle headlight |
US9803825B2 (en) | 2013-05-29 | 2017-10-31 | Zkw Group Gmbh | Lighting device for a vehicle headlight |
WO2015051887A1 (en) * | 2013-10-12 | 2015-04-16 | Daimler Ag | Illumination apparatus for a vehicle |
DE102014102870A1 (en) | 2014-03-05 | 2015-09-10 | Hella Kgaa Hueck & Co. | Semiconductor light module for a headlight in a compact design |
FR3068111A1 (en) * | 2017-06-23 | 2018-12-28 | Valeo Vision | LUMINOUS MODULE FOR MOTOR VEHICLE |
EP3418630A1 (en) * | 2017-06-23 | 2018-12-26 | Valeo Vision | Light module for a motor vehicle |
US10962196B2 (en) | 2017-06-23 | 2021-03-30 | Valeo Vision | Lighting module for a motor vehicle |
FR3087618A1 (en) * | 2018-10-23 | 2020-04-24 | Valeo Systemes Thermiques | THERMAL DISSIPATION DEVICE, PARTICULARLY FOR AN AIR FLOW GENERATION DEVICE |
WO2020084223A1 (en) * | 2018-10-23 | 2020-04-30 | Valeo Systemes Thermiques | Heat dissipation device, particularly for a device for generating air flow |
CN112868276A (en) * | 2018-10-23 | 2021-05-28 | 法雷奥热系统公司 | Heat sink, in particular for generating an air flow |
US11917791B2 (en) | 2018-10-23 | 2024-02-27 | Valeo Systemes Thermiques | Heat dissipation device, particularly for a device for generating an air flow |
EP3671023A1 (en) * | 2018-12-20 | 2020-06-24 | Valeo Vision | Heat exchanger for electronic components |
WO2020127134A1 (en) * | 2018-12-20 | 2020-06-25 | Valeo Vision | Heat exchanger for electronic components |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20121002 |