EP0557180A1 - Scheinwerfer mit einer verbesserten Ventilationseinrichtung, insbesondere für Kraftfahrzeuge - Google Patents

Scheinwerfer mit einer verbesserten Ventilationseinrichtung, insbesondere für Kraftfahrzeuge Download PDF

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Publication number
EP0557180A1
EP0557180A1 EP93400380A EP93400380A EP0557180A1 EP 0557180 A1 EP0557180 A1 EP 0557180A1 EP 93400380 A EP93400380 A EP 93400380A EP 93400380 A EP93400380 A EP 93400380A EP 0557180 A1 EP0557180 A1 EP 0557180A1
Authority
EP
European Patent Office
Prior art keywords
channel
housing
projector according
projecting
channels
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.)
Granted
Application number
EP93400380A
Other languages
English (en)
French (fr)
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EP0557180B1 (de
Inventor
Antoine Deslandres
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
Publication of EP0557180A1 publication Critical patent/EP0557180A1/de
Application granted granted Critical
Publication of EP0557180B1 publication Critical patent/EP0557180B1/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 ventilation device for the interior space of a projector is that it is necessary to ensure the exit of air more or less charged with moisture which can enter the projector, according to differential pressures which may exist, at the same time as any penetration of water, mud, fouling, etc., must be avoided in said interior space.
  • This known ventilation orifice however has a number of drawbacks.
  • the quality of the seal between the plug and the end of the cylindrical extension which is decisive in preventing any penetration of mud, can deteriorate over time, and the plug can even separate completely from the housing, which can lead to massive penetrations foreign matter inside the projector.
  • the present invention aims to overcome these drawbacks, without significantly increasing the cost of the projector and without increasing its external dimensions.
  • a headlamp in particular for a motor vehicle, of the type comprising a housing defining with a lens an essentially closed interior space and a light source placed in the interior space, and at least one device for ventilating said interior space provided in association with the housing, characterized in that the ventilation device comprises a first part projecting outside the housing, which defines jointly with a first plug mounted on its free end a first channel and a second channel communicating with each other at the level a bend located in the region of said free end, and a second part projecting inside the housing, which defines jointly with a second plug mounted on its free end a third channel and a fourth channel communicating with each other at the level an elbow located in the region of said free end, the first and third channels communicating with each other while the second and fourth channels respectively emerge essentially downward on the atmosphere and essentially upward on said interior space.
  • the reference 100 designates a wall, for example the rear wall, of a headlight housing.
  • a first projecting part 110 which comes, for example, from molding with the housing and whose contour in this case is generally cylindrical with a horizontal axis.
  • a second projecting part 120 Towards the inside of the housing (to the left) extends a second projecting part 120, preferably also molded and also of generally cylindrical outline with a horizontal axis.
  • each cylindrical part is open.
  • Two plugs, respectively 130 and 140, are removably mounted on said ends to close them.
  • the two plugs are preferably strictly identical, in particular in order to limit the design and manufacturing costs by having a single part reference, and conventionally comprise per se a circular shutter part, respectively 131, 141, and a flange essentially axially oriented device, respectively 132, 142.
  • the plugs are held in place by the elastic clamping force exerted by said flanges on the outside of the respective projecting parts, the plugs 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 cylindrical part 120 comprises a similar slot 121, formed longitudinally in its upper region.
  • a baffle-like partition 112 extends in the projecting part 110 from the wall 100, essentially parallel to the axis of said part, and stops at a certain distance from the free end of said part 110.
  • partition 112 has, in its main central part 112a, a generally semi-cylindrical shape, of radius smaller than that of part 110 and whose concavity is turned upwards.
  • Two essentially flat and horizontal lateral parts 112b, 112c of the partition join said semi-cylindrical part with the walls of the part 110 which surrounds it.
  • a baffle-shaped partition 122 extends in the part 120 from the wall 100, up to a certain distance from the free end of said part 120, and has a main central part 122a of generally semi- cylindrical, the concavity of which is turned downwards, and two flat and horizontal lateral parts 122b and 122c which join said semi-cylindrical part with the wall of said part 120 situated around.
  • the wall 100 of the housing has a 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 delimited. through partition 122 and the region bottom of the wall of 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, via the channel C1 followed from channel C2, by another bend at about 180 ° upwards between the free edge in the axial direction of the partition 122 and the plug 140, then by a channel C4 located in the interior space of part 120 above the partition 122, between the latter and the flange 142 of the plug 140, and finally by the slot 121.
  • a ventilation path is thus defined, without the external space requirement of the housing being increased compared to a conventional solution, which protects the projector quite effectively against the penetration of water, mud etc., in particular thanks to the double bend at about 180 ° upwards.
  • the cost price of the projector is not significantly increased, the parts 110 and 120 having advantageously come from molding with the housing of the projector and only a second plug, preferably of the same model as the first, being to be provided.
  • the ventilation device according to the invention continues to have a certain efficiency with respect to screw penetrations of water or mud thanks to the 180 ° upward bend remaining in the inner part 120.
  • 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)
  • Instrument Panels (AREA)
EP93400380A 1992-02-17 1993-02-16 Scheinwerfer mit einer verbesserten Ventilationseinrichtung, insbesondere für Kraftfahrzeuge Expired - Lifetime EP0557180B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9201776A FR2687456B1 (fr) 1992-02-17 1992-02-17 Projecteur equipe de moyens de ventilation perfectionnes, notamment pour vehicule automobile.
FR9201776 1992-02-17

Publications (2)

Publication Number Publication Date
EP0557180A1 true EP0557180A1 (de) 1993-08-25
EP0557180B1 EP0557180B1 (de) 1996-07-10

Family

ID=9426717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93400380A Expired - Lifetime EP0557180B1 (de) 1992-02-17 1993-02-16 Scheinwerfer mit einer verbesserten Ventilationseinrichtung, insbesondere für Kraftfahrzeuge

Country Status (5)

Country Link
US (1) US5367438A (de)
EP (1) EP0557180B1 (de)
DE (1) DE69303512T2 (de)
ES (1) ES2091563T3 (de)
FR (1) FR2687456B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0762048A1 (de) * 1992-05-20 1997-03-12 Valeo Vision Scheinwerfer mit einer verbesserten Belüftungsvorrichtung, insbesondere für Kraftfahrzeuge
ES2113274A1 (es) * 1993-09-24 1998-04-16 Valeo Vision Dispositivo de ventilacion para un dispositivo de alumbrado o de señalizacion para vehiculo especialmente automovil.

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9314465D0 (en) * 1993-07-13 1993-08-25 Carello Lighting Plc Lamp assembly
JP2813858B2 (ja) * 1994-03-01 1998-10-22 株式会社小糸製作所 車輌用灯具
US5440457A (en) * 1994-09-30 1995-08-08 Linear Solutions, Inc. Ventilating means for spotlights on automotive vehicles
JP2981713B2 (ja) * 1995-01-10 1999-11-22 株式会社小糸製作所 車輌用灯具
JP3099173B2 (ja) * 1995-01-31 2000-10-16 株式会社小糸製作所 自動車用灯具の合成樹脂製ランプボデイ、自動車用灯具の合成樹脂製ランプボデイの成形方法及び自動車用灯具の合成樹脂製ランプボデイの成形用金型
US5556193A (en) * 1995-06-06 1996-09-17 Adac Plastics, Inc. Motor vehicle lamp with improved ventilating means
FR2738782B1 (fr) * 1995-09-19 1997-12-05 Valeo Vision Appareil d'eclairage ou de signalisation de vehicule pourvu de moyens de ventilation perfectionnes
JP3195273B2 (ja) * 1997-06-06 2001-08-06 株式会社小糸製作所 車輌用灯具
JP3308474B2 (ja) * 1997-09-02 2002-07-29 株式会社小糸製作所 車両用灯具
JP3245099B2 (ja) * 1997-09-04 2002-01-07 株式会社小糸製作所 車両用灯具
US6254258B1 (en) * 1998-05-27 2001-07-03 B-K Lighting, Inc. Sealed light fixture
DE10055152B4 (de) * 2000-11-07 2009-05-14 Hella Kgaa Hueck & Co. Belüftungssystem einer Leuchte, insbesondere eines Scheinwerfers für Fahrzeuge
US6663264B2 (en) 2001-05-14 2003-12-16 North American Lighting, Inc. Lamp assembly with ventilation system
CN107148810B (zh) * 2014-11-14 2019-11-01 三菱电机株式会社 防水通气件及电子设备装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2619343A1 (fr) * 1987-08-13 1989-02-17 Siem Srl Systeme optique pour vehicules automobiles comportant une ouverture d'aeration
GB2237626A (en) * 1989-11-03 1991-05-08 Carello Spa Vehicle headlight, particularly for motor vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2629343B1 (fr) * 1988-03-29 1990-07-06 Diot Jean Sauna individuel pour massages par vibrations en atmosphere conditionnee
US5010453A (en) * 1990-08-28 1991-04-23 General Motors Corporation Vehicle lamp ventilation system
US5003446A (en) * 1990-08-31 1991-03-26 General Motors Corporation Composite headlamp vent device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2619343A1 (fr) * 1987-08-13 1989-02-17 Siem Srl Systeme optique pour vehicules automobiles comportant une ouverture d'aeration
GB2237626A (en) * 1989-11-03 1991-05-08 Carello Spa Vehicle headlight, particularly for motor vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0762048A1 (de) * 1992-05-20 1997-03-12 Valeo Vision Scheinwerfer mit einer verbesserten Belüftungsvorrichtung, insbesondere für Kraftfahrzeuge
ES2113274A1 (es) * 1993-09-24 1998-04-16 Valeo Vision Dispositivo de ventilacion para un dispositivo de alumbrado o de señalizacion para vehiculo especialmente automovil.

Also Published As

Publication number Publication date
EP0557180B1 (de) 1996-07-10
ES2091563T3 (es) 1996-11-01
FR2687456A1 (fr) 1993-08-20
US5367438A (en) 1994-11-22
FR2687456B1 (fr) 1999-04-02
DE69303512T2 (de) 1997-01-30
DE69303512D1 (de) 1996-08-14

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