EP3012150A1 - Lighting device for a motor vehicle - Google Patents
Lighting device for a motor vehicle Download PDFInfo
- Publication number
- EP3012150A1 EP3012150A1 EP15190108.9A EP15190108A EP3012150A1 EP 3012150 A1 EP3012150 A1 EP 3012150A1 EP 15190108 A EP15190108 A EP 15190108A EP 3012150 A1 EP3012150 A1 EP 3012150A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lighting device
- opening
- edge
- motor vehicle
- cover
- 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- Withdrawn
Links
- 238000009423 ventilation Methods 0.000 claims abstract description 23
- 238000005286 illumination Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
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
- F21S45/30—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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/03—Gas-tight or water-tight arrangements with provision for venting
-
- 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
- F21S45/37—Ventilation or drainage of lighting devices specially adapted for signal lamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Definitions
- the invention relates to a lighting device for a motor vehicle according to the preamble of claim 1.
- the dynamic pressure in front of the vehicle is used during a journey to produce a cross-flow to a defogging of the illumination device.
- This is particularly advantageous since lower pressure differences form in the vehicle or engine compartment interior due to the increased closing of joints in the region of the vehicle front, which pressure differences can be used to generate a transverse flow within a motor vehicle headlight.
- the pressure differences between the vehicle interior and vehicle exterior can be used advantageously during a journey. Due to the increased cross-flow, a correspondingly better defrosting of the illumination device takes place, which leads to fewer complaints by the end customer, who can classify a thin film of water on an inner side of a headlight as a defect of the headlight.
- the ventilation connection is formed as part of a housing of the lighting device and molded, for example, to the housing. Thus, no additional part must be kept in the assembly of the lighting device.
- FIG. 1 shows a schematic cross section through a lighting device 2 for a motor vehicle.
- the lighting device 2 comprises a housing 4, a cover 6 and at least one light module 8.
- the light module 8 is adapted to transmit a light 10 through the cover 6 in the direction of an exterior of the motor vehicle and to generate a light distribution outside the motor vehicle.
- An inner space 12 of the lighting device 2 is in contact with an outer space of the lighting device 2 via an initial ventilation connection 14 and a second ventilation connection 16 for an air exchange.
- lighting device 2 is exemplified as a headlight.
- an air inlet via the ventilation connection 14 takes place. Air enters the interior 12 via the ventilation connection 14 at a ventilation inlet 18. At a vent outlet, air exits the interior 12 and enters the vent 16.
- the opening 50 extends transversely or orthogonally to the plane of the slit. This slot-shaped design of the opening 50 extends at least in sections along the edge 32. Of course, the slot-shaped expression of the opening 50 also on side edges or along the edge 26 and only partially extend.
- the opening 50 is funnel-shaped in cross-section, which means that in the air inlet direction to the ventilation inlet 18, the inner diameter of the ventilation connection 14 tapers.
- the vent connection 14 has in a form not shown in the course of the opening 50 to the ventilation inlet 18 on a drainage opening through which, for example, in the opening 50 entering water and / or dirt can be removed.
- This drainage opening for the removal of water and / or dirt can advantageously dissipate the water, wherein the back pressure is still sufficient to supply sufficient air to the ventilation inlet 18.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Die Erfindung betrifft eine Beleuchtungseinrichtung (2) für ein Kraftfahrzeug mit einer Abdeckscheibe (6) und einer Lüftungsverbindung (14), die in einen Innenraum (12) der Beleuchtungseinrichtung (2) führt, wobei eine Öffnung der Lüftungsverbindung (14) sich an einen Rand (32; 24) der Abdeckscheibe (6) anschließt, und wobei sich die Öffnung im Wesentlichen schlitzförmig entlang des Randes (32; 24) erstreckt.The invention relates to a lighting device (2) for a motor vehicle with a cover (6) and a ventilation connection (14), which leads into an interior (12) of the lighting device (2), wherein an opening of the ventilation connection (14) to an edge (32; 24) of the cover plate (6) connects, and wherein the opening extends substantially slit-shaped along the edge (32; 24).
Description
Die Erfindung betrifft eine Beleuchtungseinrichtung für ein Kraftfahrzeug nach dem Oberbegriff des Anspruchs 1.The invention relates to a lighting device for a motor vehicle according to the preamble of claim 1.
Aus der
Mithin ist es Aufgabe der Erfindung, eine Beleuchtungseinrichtung hinsichtlich ihrer Lüftungsverbindung zu verbessern.It is therefore an object of the invention to improve a lighting device with regard to their ventilation connection.
Die der Erfindung zu Grunde liegende Aufgabe wird nach dem Anspruch 1 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben. Für die Erfindung wichtige Merkmale finden sich ferner in der nachfolgenden Beschreibung und in den Zeichnungen, wobei die Merkmale sowohl in Alleinstellung als auch in unterschiedlichen Kombinationen für die Erfindung wichtig sein können, ohne dass hierauf nochmals explizit hingewiesen wird.The object underlying the invention is achieved according to claim 1. Advantageous developments are specified in the subclaims. For the invention important features can be further found in the following description and in the drawings, the features both alone and in different Combinations may be important for the invention, without being explicitly referred to again.
Dadurch, dass eine Öffnung der Lüftungsverbindung sich an einen Rand einer Abdeckscheibe anschließt, und dass sich die Öffnung im Wesentlichen schlitzförmig entlang des Randes erstreckt, wird der Staudruck vor dem Fahrzeug während einer Fahrt genutzt, um einen Querstrom zu einer Enttauung der Beleuchtungseinrichtung zu erzeugen. Dies ist insbesondere vorteilhaft, da sich im Fahrzeug- bzw. Motorrauminneren durch die verstärkte Verschließung von Fugen im Bereich der Fahrzeugfront geringere Druckdifferenzen ausbilden, die zur Erzeugung eines Querstroms innerhalb eines Kraftfahrzeugscheinwerfers genutzt werden können. Auch bei der Ausbildung der Beleuchtungseinrichtung als Heckleuchte lassen sich die Druckunterschiede zwischen Fahrzeuginnerem und Fahrzeugäußerem während einer Fahrt vorteilhaft nutzen. Durch den so erhöhten Querstrom findet eine entsprechend bessere Enttauung der Beleuchtungseinrichtung statt, was zu weniger Reklamationen durch den Endkunden führt, der einen dünnen Wasserfilm an einer Innenseite eines Scheinwerfers als Defekt des Scheinwerfers einstufen kann.Characterized in that an opening of the ventilation connection adjoins an edge of a cover, and that the opening extends substantially slit-shaped along the edge, the dynamic pressure in front of the vehicle is used during a journey to produce a cross-flow to a defogging of the illumination device. This is particularly advantageous since lower pressure differences form in the vehicle or engine compartment interior due to the increased closing of joints in the region of the vehicle front, which pressure differences can be used to generate a transverse flow within a motor vehicle headlight. Even with the design of the lighting device as a tail light, the pressure differences between the vehicle interior and vehicle exterior can be used advantageously during a journey. Due to the increased cross-flow, a correspondingly better defrosting of the illumination device takes place, which leads to fewer complaints by the end customer, who can classify a thin film of water on an inner side of a headlight as a defect of the headlight.
Durch die schlitzförmige Ausbildung der Öffnung können auch Randbedingungen bezüglich der Optik und des Designs des Fahrzeugs und der Beleuchtungseinrichtung besser eingehalten werden. Zum anderen lässt sich ein Schmutz- und Wassereintrag durch die schlitzförmige Ausbildung reduzieren. Darüber hinaus müssen keine Öffnungen mehr im Sichtbereich beziehungsweise im transparenten Bereich der Abdeckscheibe vorgenommen werden. Durch die schlitzförmige Ausbildung wird darüber hinaus eine genügend große Eintritts- beziehungsweise Angriffsfläche für den Außendruck geschaffen, die gleichzeitig von der sichtbaren Fläche beziehungsweise sichtbaren Abdeckscheibe der Beleuchtungseinrichtung optisch getrennt ist.Due to the slot-shaped design of the opening and boundary conditions with respect to the optics and the design of the vehicle and the lighting device can be better met. On the other hand, a dirt and water entry through the slot-shaped training can be reduced. In addition, no openings must be made in the field of vision or in the transparent area of the cover. Due to the slit-shaped design, a sufficiently large entry or attack surface for the external pressure is also created, which simultaneously from the visible Surface or visible cover of the lighting device is optically isolated.
In einer vorteilhaften Ausführungsform öffnet sich die Öffnung im Querschnitt nach außen hin trichterförmig. Die trichterförmige Ausbildung hat vorteilhaft zur Folge, dass sich durch den verjüngenden Querschnitt der Öffnung eine erhöhte Luftvolumengeschwindigkeit ergibt, die die Geschwindigkeit des Querstroms innerhalb des Kraftfahrzeugscheinwerfers erhöht und damit eine Enttauung der Beleuchtungseinrichtung gewährleistet und beschleunigt.In an advantageous embodiment, the opening opens in the cross section to the outside in a funnel shape. The funnel-shaped configuration has the advantageous consequence that the tapered cross-section of the opening results in an increased air volume velocity, which increases the speed of the transverse flow within the motor vehicle headlight and thus ensures and accelerates defrosting of the illumination device.
Vorteilhaft ist die Lüftungsverbindung als Teil eines Gehäuses der Beleuchtungseinrichtung ausgebildet und beispielsweise an das Gehäuse angespritzt. Damit muss bei der Montage der Beleuchtungseinrichtung kein zusätzliches Teil vorgehalten werden.Advantageously, the ventilation connection is formed as part of a housing of the lighting device and molded, for example, to the housing. Thus, no additional part must be kept in the assembly of the lighting device.
Weitere Merkmale, Anwendungsmöglichkeiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen der Erfindung, die in den Figuren der Zeichnung dargestellt sind. Hierbei bilden alle beschriebenen und dargestellten Merkmale für sich oder in beliebiger Kombination den Gegenstand der Erfindung, unabhängig von ihrer Zusammenfassung in den Patentansprüchen oder deren Rückbeziehung sowie unabhängig von ihrer Formulierung beziehungsweise Darstellung in der Beschreibung beziehungsweise in der Zeichnung. Für funktionsäquivalente Größen und Merkmale werden in allen Figuren auch bei unterschiedlichen Ausführungsformen die gleichen Bezugszeichen verwendet.Other features, applications and advantages of the invention will become apparent from the following description of embodiments of the invention, which are illustrated in the figures of the drawing. In this case, all described and illustrated features, alone or in any combination form the subject of the invention, regardless of their summary in the claims or their dependency and regardless of their formulation or representation in the description or in the drawing. For functionally equivalent sizes and features, the same reference numerals are used in all figures, even in different embodiments.
Nachfolgend werden beispielhafte Ausführungsformen der Erfindung unter Bezugnahme auf die Zeichnung erläutert. In der Zeichnung zeigen:
- Figur 1
- einen schematischen Querschnitt einer Beleuchtungseinrichtung;
Figur 2- die Beleuchtungseinrichtung aus
Figur 1 in an einem Verbauort in einem Kraftfahrzeug; - Figur 3
- einen Ausschnitt aus
; undFigur 2 - Figur 4
- eine schematische perspektivische Darstellung der Beleuchtungseinrichtung.
- FIG. 1
- a schematic cross section of a lighting device;
- FIG. 2
- the lighting device off
FIG. 1 in a place of installation in a motor vehicle; - FIG. 3
- a section from
FIG. 2 ; and - FIG. 4
- a schematic perspective view of the illumination device.
Die in
Selbstverständlich kann die Beleuchtungseinrichtung 2 in nicht gezeigter Form auch als Heckleuchte beziehungsweise Heckscheinwerfer ausgebildet sein, wobei die Lüftungsverbindung 14 auch zu einem Luftaustritt ausgebildet sein kann.Of course, the
Die Öffnung 50 verläuft quer beziehungsweise orthogonal zur Zeichenebene schlitzförmig. Diese schlitzförmige Ausbildung der Öffnung 50 erstreckt sich zumindest abschnittsweise entlang des Randes 32. Selbstverständlich kann die schlitzförmige Ausprägung der Öffnung 50 auch an Seitenrändern oder aber entlang des Randes 26 auch nur abschnittsweise verlaufen. Die Öffnung 50 ist im Querschnitt trichterförmig ausgebildet, was bedeutet, dass sich in Lufteinlassrichtung zu dem Lüftungseingang 18 sich der Innendurchmesser der Lüftungsverbindung 14 verjüngt.The opening 50 extends transversely or orthogonally to the plane of the slit. This slot-shaped design of the
In einer anderen Ausführungsform befindet sich der Lüftungseingang 18 zwischen dem Gehäuse und der Kante 32 in einem entsprechenden Bereich der Abdeckscheibe 6. Die Kante 34 kann beispielhaft eine Kante des Stoßfängers 24, eine Kante eines Kühlergrills oder eine Kante der Motorhaube 22 sein.In another embodiment, the
Die Lüftungsverbindung 14 weist in nicht gezeigter Form im Verlauf von der Öffnung 50 bis zum Lüftungseingang 18 eine Entwässerungsöffnung auf, durch die beispielsweise in die Öffnung 50 eintretendes Wasser und/oder Schmutz abgeführt werden kann. Diese Entwässerungsöffnung zur Abführung von Wasser und/oder Schmutz kann vorteilhaft das Wasser abführen, wobei der Staudruck noch ausreicht, um genügend Luft dem Lüftungseingang 18 zuzuführen.The
In
Claims (13)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202014008530.7U DE202014008530U1 (en) | 2014-10-24 | 2014-10-24 | Lighting device for a motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3012150A1 true EP3012150A1 (en) | 2016-04-27 |
Family
ID=54359785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15190108.9A Withdrawn EP3012150A1 (en) | 2014-10-24 | 2015-10-16 | Lighting device for a motor vehicle |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3012150A1 (en) |
| CN (1) | CN105546444A (en) |
| DE (1) | DE202014008530U1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207599593U (en) * | 2016-03-07 | 2018-07-10 | 黎昌兴 | A kind of LED headlamps |
| DE102016119511A1 (en) | 2016-10-13 | 2018-04-19 | Automotive Lighting Reutlingen Gmbh | Motor vehicle lighting device with a ventilation device |
| DE102016224099A1 (en) * | 2016-12-05 | 2018-06-07 | Volkswagen Aktiengesellschaft | Lighting device for a motor vehicle |
| DE102017208593A1 (en) | 2017-05-22 | 2018-11-22 | Volkswagen Aktiengesellschaft | Exterior light housing for a vehicle |
| DE102017223700A1 (en) * | 2017-12-22 | 2019-06-27 | Volkswagen Aktiengesellschaft | Ventilation system for a motor vehicle light |
| EP3671022B1 (en) * | 2018-12-20 | 2023-04-12 | Valeo Vision | Automotive lighting device and method for controlling an element thereof |
| WO2021115608A1 (en) * | 2019-12-12 | 2021-06-17 | Toyota Motor Europe | Vehicle headlight outer lens |
| EP4063193A1 (en) * | 2021-03-24 | 2022-09-28 | ZKW Group GmbH | Motor vehicle headlamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2598780A1 (en) * | 1986-05-16 | 1987-11-20 | Peugeot | Ventilating optical unit |
| FR2698055A1 (en) * | 1992-11-18 | 1994-05-20 | Peugeot | Ventilated optical unit for motor vehicle headlamp - uses air inlet in front cover of lamp unit and has ducts to carry air to lamp and into engine compartment |
| DE10026487A1 (en) | 2000-05-27 | 2001-11-29 | Bosch Gmbh Robert | Headlamp for motor vehicle has internal cover element for gap between reflector and housing with at least one opening near both air inlet and air outlet of venting device |
| US20070091632A1 (en) * | 2005-10-25 | 2007-04-26 | Visteon Global Technologies, Inc. | Convectively cooled headlamp assembly |
| DE102006057553A1 (en) * | 2005-12-05 | 2007-06-06 | Visteon Global Technologies, Inc., Van Buren | Headlamp assembly with integrated housing and heat sink |
| EP1970622A1 (en) * | 2007-03-15 | 2008-09-17 | Valeo Vision | Lighting and/or signalling device for an automobile comprising an outer wall provided with a heat exchange zone |
-
2014
- 2014-10-24 DE DE202014008530.7U patent/DE202014008530U1/en not_active Expired - Lifetime
-
2015
- 2015-10-16 EP EP15190108.9A patent/EP3012150A1/en not_active Withdrawn
- 2015-10-23 CN CN201510695889.4A patent/CN105546444A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2598780A1 (en) * | 1986-05-16 | 1987-11-20 | Peugeot | Ventilating optical unit |
| FR2698055A1 (en) * | 1992-11-18 | 1994-05-20 | Peugeot | Ventilated optical unit for motor vehicle headlamp - uses air inlet in front cover of lamp unit and has ducts to carry air to lamp and into engine compartment |
| DE10026487A1 (en) | 2000-05-27 | 2001-11-29 | Bosch Gmbh Robert | Headlamp for motor vehicle has internal cover element for gap between reflector and housing with at least one opening near both air inlet and air outlet of venting device |
| US20070091632A1 (en) * | 2005-10-25 | 2007-04-26 | Visteon Global Technologies, Inc. | Convectively cooled headlamp assembly |
| DE102006057553A1 (en) * | 2005-12-05 | 2007-06-06 | Visteon Global Technologies, Inc., Van Buren | Headlamp assembly with integrated housing and heat sink |
| EP1970622A1 (en) * | 2007-03-15 | 2008-09-17 | Valeo Vision | Lighting and/or signalling device for an automobile comprising an outer wall provided with a heat exchange zone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105546444A (en) | 2016-05-04 |
| DE202014008530U1 (en) | 2016-01-26 |
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Inventor name: BATHE, ACHIM Inventor name: KINDLER, MARKUS Inventor name: MUEHLBAUER, BERND Inventor name: SCHUBERT, UWE |
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