EP0985874A2 - Scheinwerfer oder Leuchte - Google Patents
Scheinwerfer oder Leuchte Download PDFInfo
- Publication number
- EP0985874A2 EP0985874A2 EP99116819A EP99116819A EP0985874A2 EP 0985874 A2 EP0985874 A2 EP 0985874A2 EP 99116819 A EP99116819 A EP 99116819A EP 99116819 A EP99116819 A EP 99116819A EP 0985874 A2 EP0985874 A2 EP 0985874A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- headlight
- housing
- dust filter
- air
- lamp according
- 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- Withdrawn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
- 239000000428 dust Substances 0.000 claims abstract description 37
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 5
- 239000005871 repellent Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims 1
- 239000003570 air Substances 0.000 description 28
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000012080 ambient air Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 210000003027 ear inner Anatomy 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 206010016334 Feeling hot Diseases 0.000 description 1
- 229920006731 PP-GF Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 235000019648 warmth Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
Definitions
- the invention relates to a headlight or a lamp for a motor vehicle a lens, a housing, light sources arranged in the housing and these assigned reflectors and a ventilation system with at least one Supply air opening and an exhaust air opening.
- Such a headlight is known for example from DE 31 38 360, the formed by the lens and by the reflector or by the housing Interior compared to its surroundings at least against dirt and splash water sealed and via an air supply and an air discharge line is ventilated, the air exchange in the headlight is forced, for example, by a negative pressure acting on the air-discharging line.
- the This enables the exchange of air to remove moist air from the Headlights.
- An interruption of the air exchange leads to the fact that when cooling the humidity of the lens or the entire headlight Lens condensed. If the ventilation system malfunctions, this leads to In extreme cases, the headlights fill up.
- the supply air opening is again arranged to the outside ambient air been.
- the supply air lines in the form of a labyrinth were partially adopted to train, which also has a water-removing function, for example what is described in DE 195 22 669.
- the advantage of these labyrinths is that it works on additional filters can be omitted, which would clog after a while and have to be replaced constantly so that the ventilation is not interrupted becomes.
- a clear lens is used for headlights or new generation lights.
- the predetermined light distribution is then determined by targeted geometric Training of reflectors achieved.
- the reflectors can be in addition to their actual Function, namely to reflect the light in the direction of light emission, also as a carrier of light emission optics for additional lights, such as turn signals or Fog lights can be used.
- the headlight or the engine compartment side The lamp is then enclosed in a housing.
- Headlights or lights are, for example, three or even four light sources arranged in a spotlight. This simplifies assembly, since by installing the Headlights all lights are already attached to the vehicle. Farther this gives the headlight a very technical look for an observer from the outside interesting impression.
- plastics in particular PC polycarbonate., UP - unsaturated polyester, PP-GF - glass fiber reinforced polypropylene (ester) and PVC - Polyvinyl chloride. These are the following plastics, i.e. H. the plastics contain outgassing volatile components. Components made from such plastics are softened, for example, plasticizers, lubricants, stabilizers, Flame retardants or solvents. An exact listing of the fogging components is in "The Fogging Problem: Measurement Methods, Paths and Successes", ATZ Automobiltechnische Journal 96 (94) page 238 - 246 table 4 listed.
- Fogging leads to Misting or for graying the lens of the reflectors or for Decompose the plastic. Foggen increases exponentially with temperature, this is, for example, in "Temperature dependence of the fogging phenomenon" plastics 83 (1993), by F. Loock, Th. Lampe, A.M. Bahadir.
- the invention is therefore based on the technical problem, a generic one Headlights, especially with a blower to create the penetration is effectively prevented by dust and no major constructive measures required are.
- the dust filter consists of an elastic one Material that is attached to the housing in a tensioned state. This is the Supply air line hermetically sealed against dust, without the vibrating ability of the Affect the dust filter.
- the material of the dust filter is preferably above also water-repellent, so the problem of moisture penetration is reduced.
- a mass body can be used to improve the vibration behavior of the dust filter assigned, which is glued on, for example.
- the dust filter is preferably arranged parallel to the roadway, so that at one on the underside of the housing, the filter is used for self-cleaning released dust is discharged onto the road.
- the dust filter is a stop assigned to enhance the self-cleaning effect.
- a headlight or lamp 1 is only headlights below called recognizing.
- the headlight 1 has a housing 5 and a lens 2 on.
- Light sources 3 and reflectors 4 are provided in the housing 5. That of the Light sources 3 emitted light is through the reflectors 4, through the lens 2 given to the outside.
- the light sources 3 can, for example, on the Reflectors 4 can be attached or connected to others with the housing 5 Attachment approaches.
- the reflectors 4 can also be used as supports for Light emission optics can be used for other light sources based on that of the Lens 2 facing away from the reflector 4 are arranged.
- modern Headlights are arranged on a reflector, several light sources 3 Desired light distribution is achieved through targeted geometric formation of the Reflectors 4 reached. This enables a clear lens 2 to be closed use.
- the housing 5 On the side of the reflectors 4 facing away from the light exit side, the housing 5 has an opening 25.
- the opening 25 is closed with a cover 6.
- the cover 6 serves as a fastening attachment, for example for the control unit for the headlight range control 8 or plug contacts, not shown.
- the cover 6 has an exhaust air opening 15 in which the blower 7 is advantageously arranged.
- the arrangement of the blower 7 in the cover 6 makes it possible to retrofit headlights not previously equipped with a blower with a blower.
- the blower 7 is, for example, a commercially available fan, as is used in computer housings.
- the volume flow is, for example, 11 m 3 / h with a current consumption of 0.21 amperes and a voltage of 13 volts, so the power consumed by the fan is very low and can also be accepted from an energy point of view.
- the components around which the flow flows such as the reflectors 4 or the housing 5, are cooled, so that the volatile constituents which outgas from these parts are reduced.
- the housing 5 has supply air openings 9, are arranged in the dust filter 10. Due to the dust filter 10, the Supply air openings 9 are designed to be larger, without an increased Soiling of the headlight 1 goes hand in hand.
- the dust filter 10 is made of one elastic, air-permeable and water-repellent material and in tensioned Condition connected to the housing 5. This turns the dust filter 10 into each Vibration of the motor vehicle vibrated and adhering to the filter 10 Dust particles are knocked off, so that the dust filter 10 virtually cleans itself.
- the dust filter 10 is to be arranged in such a way that the dust which has been removed is not in the housing 5 can get. To do this, the dust filter can be placed at an acute angle be turned on so that the dust that has been cut off always falls in front of the dust filter 10.
- the reflectors can have specifically arranged throughflow openings 31, wherein then by choosing the gap width of column 30 and the size of the Passage opening 31 of the air stream can be guided such that it is targeted Warmths is passed. Furthermore, the bypass of the air flow is on the reflector 4 is particularly important because the reflector 4 due to its complicated geometric training, which ultimately determines the light distribution, especially before Protect deposits of condensate, otherwise the specified light distribution is not observed.
- the path of the air flow is shown by the arrows. It is particularly important that the blower 7 guides the air away from the lens. On Blowing the lens similar to blowing the windshield on the Vehicle interior ventilation would be undesirable as this would also result in the volatile Components would be specifically inflated onto the lens 2.
- FIG. 2 is a schematic cross section through another preferred Embodiment shown.
- the filter 10 is stretched in front of the supply air opening 9 and attached to the housing 5, the filter 10 aligned parallel to the road is.
- a mass body 11 is attached, which the vibration amplitude the filter 10 enlarged.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
- Fig. 1
- einen Querschnitt durch einen Scheinwerfer mit einem Gebläse und einem selbstreinigenden Filter und
- Fig.2
- einen schematischen Querschnitt durch den Scheinwerfer mit einem horizontalen Staubfilter.
Claims (7)
- Scheinwerfer oder Leuchte für ein Kraftfahrzeug mit einer Lichtscheibe, einem Gehäuse, in dem Gehäuse angeordneten Lichtquellen und diesen zugeordneten Reflektoren, mit einem Belüftungssystem, mit mindestens einer Zuluftöffnung und mindestens einer Abluftöffnung, dadurch gekennzeichnet, daß vor der Zuluftöffnung (9) in luftdurchlässiger Staubfilter (10) angeordnet ist, der derart an dem Gehäuse (5) oder einem anderen Bauteil des Belüftungssystems befestigt ist, daß dieser durch die Eigenbewegung des Kraftfahrzeuges oder einem aktiven Aktuator in Schwingung versetzbar ist.
- Scheinwerfer oder Leuchte nach Anspruch 1, dadurch gekennzeichnet, daß der Staubfilter (10) aus einem elastischen Stoff besteht, der im gespannten Zustand an dem Gehäuse (5) befestigt ist.
- Scheinwerfer oder Leuchte nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Material des Staubfilters (10) wasserabweisend und/oder ölbeständig ist.
- Scheinwerfer oder Leuchte nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß dem Staubfilter (10) ein Massekörper (11) zugeordnet ist.
- Scheinwerfer oder Leuchte nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß der Staubfilter (10) parallel zur Fahrbahn ausgerichtet ist.
- Scheinwerfer oder Leuchte nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß dem Staubfilter (10) ein Anschlag (12) zugeordnet ist.
- Scheinwerfer oder Leuchte nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß vor oder hinter dem Filter (10) die Zuluftleitung labyrinth- und/oder lamellenförmig ausgebildet ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19841727A DE19841727A1 (de) | 1998-09-12 | 1998-09-12 | Scheinwerfer oder Leuchte |
| DE19841727 | 1998-09-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0985874A2 true EP0985874A2 (de) | 2000-03-15 |
| EP0985874A3 EP0985874A3 (de) | 2002-03-06 |
Family
ID=7880706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99116819A Withdrawn EP0985874A3 (de) | 1998-09-12 | 1999-09-01 | Scheinwerfer oder Leuchte |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0985874A3 (de) |
| DE (1) | DE19841727A1 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2848914A1 (fr) * | 2002-12-23 | 2004-06-25 | Giat Ind Sa | Dispositif pour interdire la formation d'une gangue de materiau solide de projections sur une sortie d'air |
| DE102008064344A1 (de) * | 2008-12-20 | 2010-07-22 | Audi Ag | Scheinwerfer für ein Kraftfahrzeug |
| EP2239163A1 (de) * | 2009-04-11 | 2010-10-13 | Automotive Lighting Reutlingen GmbH | Beleuchtungseinrichtung für ein Kraftfahrzeug |
| FR3078141A1 (fr) * | 2018-02-21 | 2019-08-23 | Psa Automobiles Sa | Piece moulee de bloc optique de vehicule, a reflecteur a ouverture anti-condensation |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10052653A1 (de) | 2000-10-24 | 2002-05-02 | Volkswagen Ag | Beleuchtungsanordnung für Kraftfahrzeuge |
| DE102005025015A1 (de) * | 2005-05-30 | 2006-12-07 | Hella Kgaa Hueck & Co. | Fahrzeugleuchte |
| DE102013218329A1 (de) | 2013-09-12 | 2015-03-12 | Automotive Lighting Reutlingen Gmbh | Beleuchtungseinrichtung |
| DE102013218327A1 (de) | 2013-09-12 | 2015-03-12 | Automotive Lighting Reutlingen Gmbh | Kfz-Beleuchtungseinrichtung |
| DE102013017022A1 (de) * | 2013-10-12 | 2015-04-16 | Daimler Ag | Beleuchtungsvorrichtung für ein Fahrzeug |
| CN104214662B (zh) * | 2014-08-27 | 2016-08-17 | 苏州骏发精密机械有限公司 | Led汽车前灯灯罩 |
| CN104214663B (zh) * | 2014-08-27 | 2015-09-30 | 苏州骏发精密机械有限公司 | 车用前照灯灯罩 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3138360A1 (de) | 1981-09-26 | 1983-04-21 | Westfaelische Metall Industrie | "fahrzeugscheinwerfer" |
| DE19522669A1 (de) | 1995-06-22 | 1997-01-09 | Hella Kg Hueck & Co | Gehäuse einer lichterzeugenden Einrichtung für Kraftfahrzeuge |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2318746C2 (de) * | 1973-04-13 | 1983-04-14 | Robert Bosch Gmbh, 7000 Stuttgart | Scheinwerfer für Kraftfahrzeuge |
| DE3612987A1 (de) * | 1986-04-17 | 1987-10-29 | Hella Kg Hueck & Co | Fahrzeugscheinwerfer |
| GB2289527B (en) * | 1994-05-09 | 1997-10-08 | Koito Mfg Co Ltd | Vehicular lamp |
| DE19524163A1 (de) * | 1995-07-03 | 1997-01-30 | Daimler Benz Ag | Anordnung für eine Kraftfahrzeugleuchte |
| EP0859188A3 (de) * | 1997-02-12 | 1999-09-08 | Volkswagen Aktiengesellschaft | Scheinwerferbetauungsschutz |
-
1998
- 1998-09-12 DE DE19841727A patent/DE19841727A1/de not_active Withdrawn
-
1999
- 1999-09-01 EP EP99116819A patent/EP0985874A3/de not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3138360A1 (de) | 1981-09-26 | 1983-04-21 | Westfaelische Metall Industrie | "fahrzeugscheinwerfer" |
| DE19522669A1 (de) | 1995-06-22 | 1997-01-09 | Hella Kg Hueck & Co | Gehäuse einer lichterzeugenden Einrichtung für Kraftfahrzeuge |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2848914A1 (fr) * | 2002-12-23 | 2004-06-25 | Giat Ind Sa | Dispositif pour interdire la formation d'une gangue de materiau solide de projections sur une sortie d'air |
| EP1433639A1 (de) * | 2002-12-23 | 2004-06-30 | Giat Industries | Vorrichtung zur Verhinderung der Bildung eines Gansteines aus festem Spritzwerkstoff auf einem Luftauslass |
| US7147079B2 (en) | 2002-12-23 | 2006-12-12 | Giat Industries | Device to prevent the formation of solid matter due to projections on an air outlet |
| DE102008064344A1 (de) * | 2008-12-20 | 2010-07-22 | Audi Ag | Scheinwerfer für ein Kraftfahrzeug |
| DE102008064344B4 (de) * | 2008-12-20 | 2011-01-27 | Audi Ag | Scheinwerfer eines Kraftfahrzeugs |
| EP2239163A1 (de) * | 2009-04-11 | 2010-10-13 | Automotive Lighting Reutlingen GmbH | Beleuchtungseinrichtung für ein Kraftfahrzeug |
| FR3078141A1 (fr) * | 2018-02-21 | 2019-08-23 | Psa Automobiles Sa | Piece moulee de bloc optique de vehicule, a reflecteur a ouverture anti-condensation |
| EP3531013A1 (de) * | 2018-02-21 | 2019-08-28 | PSA Automobiles SA | Formteil eines optischen fahrzeugblocks mit reflektor mit antikondensierungs-öffnung |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0985874A3 (de) | 2002-03-06 |
| DE19841727A1 (de) | 2000-03-16 |
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