EP0571272B1 - Scheinwerfer mit verbesserter Belüftungsvorrichtung insbesondere für Kraftfahrzeuge - Google Patents

Scheinwerfer mit verbesserter Belüftungsvorrichtung insbesondere für Kraftfahrzeuge Download PDF

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Publication number
EP0571272B1
EP0571272B1 EP93401274A EP93401274A EP0571272B1 EP 0571272 B1 EP0571272 B1 EP 0571272B1 EP 93401274 A EP93401274 A EP 93401274A EP 93401274 A EP93401274 A EP 93401274A EP 0571272 B1 EP0571272 B1 EP 0571272B1
Authority
EP
European Patent Office
Prior art keywords
channel
housing
internal space
projecting
headlamp 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.)
Expired - Lifetime
Application number
EP93401274A
Other languages
English (en)
French (fr)
Other versions
EP0571272A1 (de
Inventor
Arturo Moron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Priority to EP96117075A priority Critical patent/EP0762048B1/de
Publication of EP0571272A1 publication Critical patent/EP0571272A1/de
Application granted granted Critical
Publication of EP0571272B1 publication Critical patent/EP0571272B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F21S45/30—Ventilation or drainage of lighting devices
    • F21S45/33—Ventilation or drainage of lighting devices specially adapted for headlamps

Definitions

  • the present invention relates generally to the ventilation of motor vehicle headlamps.
  • a constant concern in the design of a device for ventilating the interior space of a projector is that more or less moisture-laden air must be able to enter or leave the projector, depending on the differential pressures that may exist, at the same time that any penetration of water, mud, dirt, etc. must be avoided in said interior space.
  • Document FR-A-2 660 412 teaches a ventilation device which comprises, on the outside of the housing, a duct generally in the shape of a "U", one open end of which is sheltered from direct water splashes and, on the inside to the housing, an orifice opening both axially and radially into the interior space of the projector.
  • a hydrophobic filter is interposed on the ventilation path.
  • Such a device is however disadvantageous in that it has limited effectiveness when it is desired to be able to do without such a hydrophobic filter, in particular when the headlight is directly exposed to rain under pressure or during a passage to ford.
  • GB-A-2 237 626 also discloses a projector according to the preamble of claim 1.
  • the second channel of the ventilation device opens directly into the interior space of the projector housing, and this results a barrier to liquid penetration which is not entirely satisfactory.
  • the present invention aims to overcome this drawback in a simple manner and without increasing the cost price of the projector.
  • the reference 100 denotes a wall, for example the rear wall, of a headlight housing.
  • a first protruding part 110 for example formed by molding with the housing and whose outline in this case is generally cylindrical with a horizontal axis.
  • a second protruding part 120 Towards the inside of the housing (to the left) extends a second protruding part 120, preferably also molded. Its outline is generally semi-cylindrical with a horizontal axis. The protruding parts 110 and 120 are in this case coaxial.
  • a plug 130 is removably mounted on this end to close it. It comprises a circular shutter part 131 and a peripheral flange 132 oriented essentially axially.
  • the plug is held in place by the elastic clamping force exerted by its flange on the outside of the projecting part 110, the plug being made for example of rubber.
  • the cylindrical part 110 comprises, over its entire longitudinal extent and in its lower region, a slot 111.
  • the semi-cylindrical contour part 120 comprises a planar lower wall 124, a semi-cylindrical upper wall 122, an end wall 123 and a opening 121 formed in the wall 122, located near the end wall 123 and opening upwards into the interior space of the projector.
  • a baffle-like partition 112 extends in the projecting part 110 from the wall 100, in the extension of the wall 124.
  • This partition 112 is essentially parallel to the axis of said part 110, and stops at a certain distance from the free end of said part 110.
  • the partition 112 is in this case flat and horizontal.
  • the wall 100 of the housing has a semi-circular opening 101 which opens on one side into the channel C1 delimited by the partition 112 and the upper region of the wall of the projecting part 110, and on the other side in the channel C2 bounded by the projecting part 120.
  • the ventilation air path is constituted, in the embodiment described above, by the slot 111, by a channel C3 with which the slot 111 communicates and which is defined in the interior space of the part 110 at below the partition 112, between the latter and the flange 132 of the plug 130, by a bend at about 180 ° upwards between the free edge in the axial direction of the partition 112 and the plug 130, then through the channel C1 and channel C2, and finally through opening 121.
  • a ventilation path is thus defined, without the external space requirement of the housing being significant, which protects the projector quite effectively against the penetration of water, mud etc., in particular thanks to the presence of the elbow at about 180 ° upwards and from the fact that the interior part 120 is closed at its free end at 123 and opens onto the interior space of the projector only upwards.
  • the cost price of this ventilation device is low, the parts 110 and 120 having advantageously come from molding with the projector housing and only a plug being provided.
  • the configuration of the housing 100 of the projector 100 as described above is advantageous in that it is possible to use a mold without a drawer, which further facilitates manufacture and reduces the cost price.
  • a projector can be equipped with one or more ventilation devices as described above, and the shape and dimensions of the various parts can vary widely from those described and shown.

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)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Claims (7)

  1. Scheinwerfer, insbesondere für Kraftfahrzeuge, mit einem Gehäuse, das zusammen mit einer Streuscheibe einen weitgehend geschlossenen Innenraum bildet, und einer im Innenraum angeordneten Lichtquelle sowie mit wenigstens einer Belüftungsvorrichtung für den besagten Innenraum, die in Verbindung mit dem Gehäuse vorgesehen ist, wobei die Belüftungsvorrichtung einen außen am Gehäuse vorspringenden ersten Teil (110) umfaßt, der zusammen mit einem an seinem freien Ende angebrachten Deckel (130) einen ersten Kanal (C1) und einen zweiten Kanal (C3) bildet, die miteinander in Höhe einer Biegung in Verbindung stehen, die im Bereich des besagten freien Endes angeordnet ist, dadurch gekennzeichnet, daß sie außerdem einen im Innern des Gehäuses vorspringenden zweiten Teil (120) umfaßt, der einen dritten Kanal (C2) bildet, der den zweiten Kanal (C1) verlängert, wobei der zweite Kanal (C3) in etwa nach unten zur Außenluft führt, während der dritte Kanal (C2) nach oben in den besagten Innenraum in einem Abstand vom ersten Teil (110) der Belüftungsvorrichtung führt.
  2. Scheinwerfer nach Anspruch 1 , dadurch gekennzeichnet, daß die besagten vorspringenden Teile fest mit einer Wand (100) des Gehäuses verbunden und so angeordnet sind, daß der erste und der dritte Kanal (C1, C2) in etwa aufeinander ausgerichtet sind und durch eine in der besagten Wand ausgebildete Öffnung (101) miteinander in Verbindung stehen.
  3. Scheinwerfer nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß der zweite Kanal (C3) mit der Außenluft durch einen Schlitz (111) in Verbindung steht, der sich in Längsrichtung im unteren Bereich des besagten ersten vorspringenden Teils erstreckt.
  4. Scheinwerfer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der dritte Kanal (C2) mit dem Innenraum durch eine Öffnung (121) in Verbindung steht, die sich im oberen Bereich des besagten zweiten vorspringenden Teils erstreckt und in der Nähe einer Abschlußwand (123) dieses Teils angeordnet ist.
  5. Scheinwerfer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der erste vorspringende Teil (110) eine Trennwand (112) enthält, die die beiden darin gebildeten Kanäle (C1, C3) trennt und sich bis zu einem bestimmten Abstand vom Deckel (130) erstreckt.
  6. Scheinwerfer nach Anspruch 5 , dadurch gekennzeichnet, daß der zweite Kanal zumindest teilweise zwischen der Trennwand (112) und einem Teil eines Kragens (132) des Deckels gebildet ist.
  7. Scheinwerfer nach Anspruch 2 , dadurch gekennzeichnet, daß zumindest ein Teil des ersten und dritten Kanals (C1, C2), die in etwa aufeinander ausgerichtet sind, an seiner Grundfläche ein nach außen abfallendes Gefälle aufweist.
EP93401274A 1992-05-20 1993-05-18 Scheinwerfer mit verbesserter Belüftungsvorrichtung insbesondere für Kraftfahrzeuge Expired - Lifetime EP0571272B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96117075A EP0762048B1 (de) 1992-05-20 1993-05-18 Scheinwerfer mit einer verbesserten Belüftungsvorrichtung, insbesondere für Kraftfahrzeuge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9206113A FR2691523B1 (fr) 1992-05-20 1992-05-20 Projecteur equipe de moyens de ventilation perfectionnes, notamment pour vehicule automobile.
FR9206113 1992-05-20

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP96117075A Division EP0762048B1 (de) 1992-05-20 1993-05-18 Scheinwerfer mit einer verbesserten Belüftungsvorrichtung, insbesondere für Kraftfahrzeuge
EP96117075.0 Division-Into 1996-10-24

Publications (2)

Publication Number Publication Date
EP0571272A1 EP0571272A1 (de) 1993-11-24
EP0571272B1 true EP0571272B1 (de) 1997-05-02

Family

ID=9429966

Family Applications (2)

Application Number Title Priority Date Filing Date
EP93401274A Expired - Lifetime EP0571272B1 (de) 1992-05-20 1993-05-18 Scheinwerfer mit verbesserter Belüftungsvorrichtung insbesondere für Kraftfahrzeuge
EP96117075A Expired - Lifetime EP0762048B1 (de) 1992-05-20 1993-05-18 Scheinwerfer mit einer verbesserten Belüftungsvorrichtung, insbesondere für Kraftfahrzeuge

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP96117075A Expired - Lifetime EP0762048B1 (de) 1992-05-20 1993-05-18 Scheinwerfer mit einer verbesserten Belüftungsvorrichtung, insbesondere für Kraftfahrzeuge

Country Status (4)

Country Link
EP (2) EP0571272B1 (de)
DE (2) DE69310266T2 (de)
ES (2) ES2124616T3 (de)
FR (1) FR2691523B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732750B1 (fr) * 1995-04-06 1997-06-20 Valeo Vision Dispositif de ventilation a chicane d'un bloc optique de vehicule automobile
DE10135849A1 (de) * 2001-07-23 2003-02-06 Bayerische Motoren Werke Ag Scheinwerfer für ein Kraftfahrzeug
GB2460232A (en) * 2008-05-20 2009-11-25 Caroline Svanda A loose cover for a drinking vessel or drinking or food can
US10281107B1 (en) * 2018-06-26 2019-05-07 GM Global Technology Operations LLC Cap assembly and vent body for a light housing on a vehicle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2619343B1 (fr) * 1987-08-13 1992-02-28 Siem Srl Systeme optique pour vehicules automobiles comportant une ouverture d'aeration
IT219095Z2 (it) * 1989-11-03 1992-12-01 Carello Spa Proiettore per veicoli, in particolare autoveicoli
FR2660412B1 (fr) * 1990-03-30 1992-07-03 Valeo Vision Dispositif d'eclairage ou de signalisation ventile pour vehicule automobile tel que projecteur ou feu de signalisation.
IT1240727B (it) * 1990-09-07 1993-12-17 Carello Spa Fanale per veicoli
FR2669992A1 (fr) * 1990-11-30 1992-06-05 Valeo Vision Dispositif de protection d'un systeme d'aeration d'appareil d'eclairage ou de signalisation, plus particulierement pour vehicules auttomobiles.
FR2687456B1 (fr) * 1992-02-17 1999-04-02 Valeo Vision Projecteur equipe de moyens de ventilation perfectionnes, notamment pour vehicule automobile.

Also Published As

Publication number Publication date
ES2124616T3 (es) 1999-02-01
EP0571272A1 (de) 1993-11-24
DE69321373T2 (de) 1999-03-04
EP0762048B1 (de) 1998-09-30
FR2691523A1 (fr) 1993-11-26
DE69310266T2 (de) 1997-08-14
EP0762048A1 (de) 1997-03-12
DE69321373D1 (de) 1998-11-05
FR2691523B1 (fr) 1999-05-14
ES2101971T3 (es) 1997-07-16
DE69310266D1 (de) 1997-06-05

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