DE102007062388A1 - External lamp i.e. headlamp, for motor vehicle, has ventilator arrangement comprising ventilator for directing air in interior of lamp from cooling arrangement to places, at which reflector is connected with housing in lower region of lamp - Google Patents
External lamp i.e. headlamp, for motor vehicle, has ventilator arrangement comprising ventilator for directing air in interior of lamp from cooling arrangement to places, at which reflector is connected with housing in lower region of lamp Download PDFInfo
- Publication number
- DE102007062388A1 DE102007062388A1 DE102007062388A DE102007062388A DE102007062388A1 DE 102007062388 A1 DE102007062388 A1 DE 102007062388A1 DE 102007062388 A DE102007062388 A DE 102007062388A DE 102007062388 A DE102007062388 A DE 102007062388A DE 102007062388 A1 DE102007062388 A1 DE 102007062388A1
- Authority
- DE
- Germany
- Prior art keywords
- lamp
- fan
- arrangement
- housing
- ventilator
- 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
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
- F21S41/10—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
- 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
- F21S45/42—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
- F21S45/60—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
-
- 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
-
- 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)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
Die
Erfindung betrifft eine Außenleuchte für Kraftfahrzeuge,
wie sie beispielsweise aus der
Diese
Ausgehend vom bekannten Stand der Technik war es die Aufgabe der vorliegenden Erfindung, die Betauung eines Scheinwerfers noch besser zu vermeiden, eine kompakte Bauform zu realisieren, die den immer höheren Anforderungen an die Platzproblematik im Package von Fahrzeugen gerecht wird.outgoing It was the object of the present prior art Invention to better prevent the condensation of a headlamp, To realize a compact design, the ever higher Requirements for the space problem in the package of vehicles does justice.
Zusätzlich zur Vermeidung der Betauung besteht die Aufgabe, eine kritische Wärmeentwicklung im Scheinwerfer, welche die Lebensdauer der Leuchtmittel beeinflusst, zu vermeiden.additionally To avoid condensation, there is the task of creating a critical one Heat development in the headlight, which the life the bulb affected, to avoid.
Diese Aufgabe wird durch die erfindungsgemäße Anordnung mit den Merkmalen des Hautpanspruchs gelöst.These Task is achieved by the inventive arrangement solved with the characteristics of the Hautpanspruchs.
Die Anordnung eines Lüfters bzw. Ventilators im unteren Bereich einer aus einem Gehäuse und einer Abdeckscheibe gebildeten Außenleuchte für ein Kraftfahrzeug hat den Vorteil, dass eine definierte Luftzirkulation im Inneren der Außenleuchte realisiert wird. Durch diese definierte Luftzirkulation wird zum einen ein Abtransport der an den Leuchtmitteln entstehenden Wärme und zum anderen eine sehr gute Betauungsvermeidung im unteren Bereich der Außenleuchte, welcher besonders betauungsgefährdet ist, erreicht.The Arrangement of a fan or fan in the lower area one formed of a housing and a cover Outdoor light for a motor vehicle has the advantage that a defined air circulation inside the outdoor lamp is realized. By this defined air circulation becomes on the one hand a removal of heat generated at the bulbs and on the other hand a very good condensation avoidance in the lower range the outdoor lamp, which is particularly dew-endangered, reached.
Die definierte Luftzirkulation ermöglicht es, die kühle Luft definiert an der Leuchtenanordnung vorbeizuführen und dann die so erwärmte Luft definiert in den unteren Bereich der Abdeckscheibe einzuleiten. Die Anordnung des Lüfters in diesem Bereich hat den Vorteil, dass insbesondere auch die unter Umständen schwer zugänglichen Ecken im Zusammenlaufen des Scheinwerfergehäuses und der Abdeckscheibe gut durchlüftet werden, so dass eine Betauung vermieden wird. Die Aufnahme der Wärme der Leuchtenanordnung bzw. von Leuchtdioden zur Vermeidung von Überhitzungen wird durch das Anordnen von Kühlblechen an der Leuchtenanordnung wesentlich verbessert.The Defined air circulation allows the cool Defined air passes by the luminaire arrangement and then the air so heated defined in the bottom To initiate the area of the cover. The arrangement of the fan in this area has the advantage that in particular the under Circumstances hard to reach corners in convergence the headlight housing and the cover well ventilated so that condensation is avoided. The absorption of the heat of Luminaire arrangement or of light emitting diodes to avoid overheating becomes essential by arranging cooling plates on the luminaire assembly improved.
Durch die in den abhängigen Ansprüchen genannten Merkmale ergeben sich weitere vorteilhafte Verbesserungen der erfindungsgemäßen AnordnungBy the features mentioned in the dependent claims arise further advantageous improvements of the invention arrangement
So ist es möglich einen zweiten Lüfter bzw. Ventilator innerhalb der Außenleuchte vorzusehen, wobei dieser zweite Lüfter vorteilhafterweise in der Nähe des zumindest einen Kühlblechs oder Kühlkörpers angeordnet ist und das Ansaugen der kühlen Luft zum Kühlen Kühlbleches mit darauf angeordneten Kühlrippen verstärkt.So is it possible a second fan or fan to provide within the outdoor light, this second Fan advantageously near the at least arranged a cooling plate or heat sink is and sucking in the cool air for cooling Cooling plate with cooling fins arranged thereon strengthened.
Die definierte Luftzirkulation bzw. Luftleitung im Inneren der Außenleuchte hat den Vorteil, dass mit einem Luftstrom sowohl eine Kühlfunktion als auch eine Betauungsvermeidung erzielt wird. Damit ist es unter Umständen möglich, auf das Ansaugen von Luft aus dem Außenbereich zu verzichten und so keine zusätzliche Feuchtigkeit in den Scheinwerfer einzuleiten. Die im Scheinwerfer befindliche Luft kann bei einer entsprechenden Dimensionierung sowohl der Kühlung der Leuchtdioden als auch für die Enttauung der Scheinwerferscheibe genutzt werden.The defined air circulation or air duct inside the exterior light has the advantage that with a stream of air both a cooling function as well as a Betauungsvermeidung is achieved. That's it under Possible, on the intake of air to give up the outside and so no extra Moisture into the headlight to initiate. The in the headlight Air can be at a corresponding dimensioning both the cooling of the LEDs as well as for the Enttauung the headlight lens can be used.
Letztendlich bietet das Anordnen eines Lüfters im unteren Bereich der Abdeckscheibe einen hohen Wiedererkennungswert und kann so eine klare Erkennung zwischen Scheinwerfern mit Leuchtdioden, die eine entsprechende Luftzirkulation bedingen und herkömmlichen Scheinwerfern ermöglichen.At long last provides for placing a fan in the lower area of the fan Cover disc a high recognition value and can so a clear detection between headlamps with LEDs, the one appropriate air circulation condition and conventional Enable headlamps.
Der Lüfter kann ferner wahlweise von einer Deckscheibe verdeckt werden, die vorteilhafterweise so zu gestalten ist, dass der Luftstrom noch gezielter auf die betauungsgefährdeten Bereiche an der Abdeckscheibe gerichtet wird.Of the Fan can also optionally covered by a cover plate be advantageously designed so that the air flow even more targeted to the dew-endangered areas the cover is directed.
Ein solche Deckscheibe kann sowohl blickdicht als auch transparent ausgebildet sein und den Lüfter ganz oder teilweise bedecken.One Such cover can be both opaque and transparent be and cover the fan in whole or in part.
Ein Ausführungsbeispiel der Erfindung ist in der Figur dargestellt und in der nachfolgenden Beschreibung näher erläutert.One Embodiment of the invention is shown in the figure and explained in more detail in the following description.
Die Figur zeigt eine schematische Darstellung der erfindungsgemäßen Außenleuchte für ein Kraftfahrzeug.The FIG. 1 shows a schematic representation of the invention Outdoor light for a motor vehicle.
Die
schematisch dargestellte Außenleuchte im weiteren als Scheinwerfer
Im
Ausführungsbeispiel der Figur ist hierzu ein Kühlkörper
in Form von Kühlrippen
Im
unteren Bereich des Scheinwerfers
Im folgenden soll die Wirkungsweise der beschriebenen Anordnung erläutert.in the The following will explain the operation of the arrangement described.
Das
Zusammenwirken der Kühlrippen und des zumindest einen Lüfters
im Innenraum
Dabei wird der positive Effekt genutzt, der sich durch der Luftzirkulation ergibt. Die vom Scheinwerfer angesaugte kühle Luft wird an den Kühlrippen erwärmt und dabei gleichzeitig die Kapazität der Luft zur Aufnahme von Feuchtigkeit erhöht, so dass die dann weitergeleitete Luft viel besser geeignet ist, die entstehende Betauungsfeuchtigkeit aufzunehmen und aus dem Inneren des Scheinwerfers heraus abzuleiten.there the positive effect is taken advantage of by the air circulation results. The sucked by the headlight cool air is heated at the cooling fins and at the same time increases the capacity of the air to absorb moisture, so that the then forwarded air is much better suited to absorb the resulting dew moisture and from the inside of the headlight to be deduced out.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102005043499 A1 [0001, 0002] - DE 102005043499 A1 [0001, 0002]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007062388A DE102007062388A1 (en) | 2007-12-22 | 2007-12-22 | External lamp i.e. headlamp, for motor vehicle, has ventilator arrangement comprising ventilator for directing air in interior of lamp from cooling arrangement to places, at which reflector is connected with housing in lower region of lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007062388A DE102007062388A1 (en) | 2007-12-22 | 2007-12-22 | External lamp i.e. headlamp, for motor vehicle, has ventilator arrangement comprising ventilator for directing air in interior of lamp from cooling arrangement to places, at which reflector is connected with housing in lower region of lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007062388A1 true DE102007062388A1 (en) | 2009-06-25 |
Family
ID=40689844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007062388A Ceased DE102007062388A1 (en) | 2007-12-22 | 2007-12-22 | External lamp i.e. headlamp, for motor vehicle, has ventilator arrangement comprising ventilator for directing air in interior of lamp from cooling arrangement to places, at which reflector is connected with housing in lower region of lamp |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007062388A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013007155A1 (en) * | 2013-04-24 | 2014-10-30 | GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) | vehicle headlights |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1643188A1 (en) * | 2004-09-29 | 2006-04-05 | Osram Opto Semiconductors GmbH | LED arrangement with cooling means and vehicle headlight |
US20070035957A1 (en) * | 2005-05-23 | 2007-02-15 | Valeo Vision | Light and/or signalling device with light emitting diodes for motor vehicles |
DE102005043499A1 (en) | 2005-09-12 | 2007-03-22 | Daimlerchrysler Ag | Motor vehicle`s e.g. car, headlight, has ring-shaped reinforcing bar sticking out from inner side of light disc, and tubular light housing connected with light disc by bar, where bar is formed as single piece with light disc |
DE102005060736A1 (en) * | 2005-12-16 | 2007-07-05 | Schefenacker Vision Systems Germany Gmbh | Headlamp has housing, light source, and conveyer device that carries air from heat source along headlamp glass, where heat sink has condensate drain and connects interior of headlamp with surrounding area |
-
2007
- 2007-12-22 DE DE102007062388A patent/DE102007062388A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1643188A1 (en) * | 2004-09-29 | 2006-04-05 | Osram Opto Semiconductors GmbH | LED arrangement with cooling means and vehicle headlight |
US20070035957A1 (en) * | 2005-05-23 | 2007-02-15 | Valeo Vision | Light and/or signalling device with light emitting diodes for motor vehicles |
DE102005043499A1 (en) | 2005-09-12 | 2007-03-22 | Daimlerchrysler Ag | Motor vehicle`s e.g. car, headlight, has ring-shaped reinforcing bar sticking out from inner side of light disc, and tubular light housing connected with light disc by bar, where bar is formed as single piece with light disc |
DE102005060736A1 (en) * | 2005-12-16 | 2007-07-05 | Schefenacker Vision Systems Germany Gmbh | Headlamp has housing, light source, and conveyer device that carries air from heat source along headlamp glass, where heat sink has condensate drain and connects interior of headlamp with surrounding area |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013007155A1 (en) * | 2013-04-24 | 2014-10-30 | GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) | vehicle headlights |
US9188301B2 (en) | 2013-04-24 | 2015-11-17 | GM Global Technology Operations LLC | Vehicle headlamp |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT512588B1 (en) | Light source module with laser light source and vehicle headlights | |
DE19814300B4 (en) | Headlight or light | |
DE102011084114B4 (en) | Motor vehicle headlamps | |
DE102008060444A1 (en) | Adaptive headlight system with high heat dissipation efficiency | |
DE102007057056A1 (en) | Headlight for motor vehicle, has thermoelectric radiator arranged on housing, where heat exchange takes place between internal space and outer side of housing through thermoelectric radiator | |
DE102005019651B4 (en) | Headlight with desiccant | |
DE102010013559A1 (en) | Illumination device i.e. headlight, for car, has light-transparent closing disk provided with absorption coating at inner side and/or outer side, where coating is adapted to additional radiation source | |
DE102010002664A1 (en) | 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 | |
DE102011001867A1 (en) | Headlight for vehicle, particularly heavy duty truck, has unit formed by incandescent lamp as temperature radiator for defrosting lens cover, where light module with light emitting diode light source is gripped in headlight housing | |
DE19733000B4 (en) | Motor vehicle headlight with an optical distance sensor | |
DE10255443B4 (en) | vehicle headlights | |
WO2006034755A1 (en) | Vehicle headlight | |
DE102005051248B4 (en) | Light unit, in particular for a motor vehicle | |
DE102007004702A1 (en) | Vehicle light i.e. headlight, has condensation protection device, light emitting unit arranged in light housing, and electrical heating device arranged in gap formed on bottom side of light housing, where device heats air in gap | |
DE10331835A1 (en) | Light for vehicle with dewing protection has design panel in region between optical arrangement and lower edge of light outlet opening that also forms electrical resistance heater | |
EP2722579B1 (en) | Motor vehicle headlamp with light source and a cooling system for the light source | |
DE102007062388A1 (en) | External lamp i.e. headlamp, for motor vehicle, has ventilator arrangement comprising ventilator for directing air in interior of lamp from cooling arrangement to places, at which reflector is connected with housing in lower region of lamp | |
EP3911892B1 (en) | Lamp with a peripherally closed heatsink | |
DE102007016439B4 (en) | LED light for a motor vehicle | |
DE102013001287A1 (en) | Headlight of e.g. motor car, has housing which is provided with light source that is thermally coupled with air-prominent flow channel for supplying and discharging cooling air, whose outlet is extended with transparent cover plate | |
EP2375136A1 (en) | Motor vehicle light | |
DE10024843A1 (en) | Motor vehicle headlamp with housing and cover forming closed chamber and at least one bulb with optical facilities working together to produce light beam and headlamp | |
DE202007015705U1 (en) | Lighting device for a motor vehicle | |
DE10340073A1 (en) | Motor vehicle head lamp esp. ventilated head lamp, has space between reflector and projector enclosed by metal wall | |
DE102007046264B4 (en) | Vehicle lamp with Enttauungsvorrichtung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |