EP0793054A2 - Blende für Kraftfahrzeugscheinwerfer und Scheinwerfer versehen mit einer solchen - Google Patents

Blende für Kraftfahrzeugscheinwerfer und Scheinwerfer versehen mit einer solchen Download PDF

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Publication number
EP0793054A2
EP0793054A2 EP19970400424 EP97400424A EP0793054A2 EP 0793054 A2 EP0793054 A2 EP 0793054A2 EP 19970400424 EP19970400424 EP 19970400424 EP 97400424 A EP97400424 A EP 97400424A EP 0793054 A2 EP0793054 A2 EP 0793054A2
Authority
EP
European Patent Office
Prior art keywords
lamp
motor vehicle
lateral
blackout
headlight
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
EP19970400424
Other languages
English (en)
French (fr)
Other versions
EP0793054A3 (de
EP0793054B1 (de
Inventor
Huertas Félix Casellas
Fermin Gonzalez Gallegos
Angel De La Torre Ocana
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 EP0793054A2 publication Critical patent/EP0793054A2/de
Publication of EP0793054A3 publication Critical patent/EP0793054A3/de
Application granted granted Critical
Publication of EP0793054B1 publication Critical patent/EP0793054B1/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
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F21S41/435—Hoods or cap-shaped
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof

Definitions

  • the present invention relates to a device for concealing light radiation for a motor vehicle headlamp.
  • Light-shielding devices for the headlight of a motor vehicle are well known and widely used. Their function is to prevent the light emitted by the filament of a projector lamp from being diffused directly outwards through the closing glass of the projector. In other words, it is a question of limiting the emission of light in such a way that it only meets the bottom and the lateral parts of the mirror which equips the projector, before being returned, after reflection, through ice.
  • Such a concealer generally has a shape which allows it to cover the front of the lamp, and has a front or anterior face which prevents any direct diffusion of light towards the lens of the projector. It also has lateral parts, the edges of which have notches of a shape such that light can only be emitted towards the useful part of the mirror.
  • Document FR-A-2 343 966 describes a radiation shield. This covers only the front and bottom parts of the lamp. Slots in the lower part are provided to allow the lamp to cool. These slots are sufficient to properly perform their lamp cooling function. The heat released by it can also be evacuated through the large space left free by the screen.
  • the present invention aims to overcome this drawback by simple and inexpensive means.
  • the concealment device which comprises a concealment element capable of covering the front part of the projector lamp and which comprises a front face, as well as lower, upper and lateral parts and an opening for the engagement of said lamp, is characterized in that at least one of the lateral parts has at least one ventilation window which projects out of said element and which opens upwards towards the outside.
  • This window facilitates the natural convection of the hot air released by the lamp.
  • the invention also relates to a motor vehicle headlamp equipped with a concealment device according to the present invention.
  • the occulting device may comprise means for fixing to a mirror of the projector, these means being constituted by at least one edge of the sheet on which are hooked teeth.
  • the concealment device shown in the appended figures is made of folded sheet metal. It is mainly formed by a concealment element 2 and an attachment element 3 to the upper cheek of the mirror of a motor vehicle headlamp.
  • the element 2 is inscribed substantially in a trunk of a pyramid, that is to say that its upper walls 20, lower 21 and lateral 22 and 23 are divergent from a front wall. plane 24.
  • the entire device, except the wall 24, is preferably formed by folding a single piece of sheet metal, including the hooking element 3, which will be described later in the description.
  • the front edge of the lateral faces 22 and 23, disposed on the left-hand side of FIG. 1, has a small ear 240, bent at 90 ° to allow the positioning, guiding and retaining of the bottom wall 24, formed separately.
  • the opposite rim of the side faces has a wide notch 220 whose profile is determined to allow the light coming from a lamp to pass and direct it only towards the mirror of the projector.
  • the side faces 22 and 23 each have two ventilation windows.
  • a first window 6 is arranged in the lower part of each of the walls. It is formed by cutting the sheet along a horizontal line and pushing the material outwards so that it protrudes from the element 2.
  • this window which extends horizontally, opens outwards in the direction of the upper part of the concealing element 2.
  • the window 5 is formed in the same way as the window 6 but is in the inverted position relative to the latter, so that its opening which projects outwards is oriented towards the lower part of the blocking element. .
  • the underside referenced 21 of the blackout element is also provided with two windows 7 formed in the same way as the windows 5 and 6, extending transversely, and the opening of which is directed towards the rear part of the blackout element .
  • the fastening element 3 is formed by a vertical part 30 which continues upwards by fastening means 4 which extend in a generally horizontal direction.
  • these attachment means comprise a part in the general shape of "U" whose horizontal base is referenced 41 and the wings are referenced 42. These wings 42 are folded 90 ° outward to form a flange 43 of which certain parts are cut and folded to form attachment teeth 44.
  • FIG. 5 shows schematically the way in which the concealment element according to the invention is integrated into a motor vehicle headlamp bearing the reference numeral 8.
  • the general outline of the housing B of this headlight is shown in dotted lines, while its lens G is represented by a dashed line.
  • the projector mirror is referenced M while its lamp is referenced L.
  • the blackout device according to the invention is fixed by its element 3 to the upper cheek of the mirror M , in such a way that the blackout element 2 covers the front part of the lamp L.
  • the fact that the occulting device has, on one of its lateral faces, at least one window which projects out from the occulting element and which opens outwards in the direction of its upper part will facilitate the evacuation of the heat upwards by a natural convection effect.
  • the shape of the windows is determined so as not to let the slightest light radiation pass.
  • the concealer device has two windows on each of its lateral and lower faces.
  • it could include a different number, for example one or three and, in a non-limiting embodiment, only on one or two of its lateral faces.
  • the device of the invention makes it possible to significantly increase the duration of use of the lamp while preserving the screen itself and the other neighboring parts which would otherwise be deformed or deteriorated under the effect of the temperature generated by the lamp.
EP19970400424 1996-02-27 1997-02-26 Blende für Kraftfahrzeugscheinwerfer und Scheinwerfer versehen mit einer solchen Expired - Lifetime EP0793054B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9602387A FR2745363B1 (fr) 1996-02-27 1996-02-27 Dispositif occulteur pour projecteur de vehicule automobile et projecteur ainsi equipe
FR9602387 1996-02-27

Publications (3)

Publication Number Publication Date
EP0793054A2 true EP0793054A2 (de) 1997-09-03
EP0793054A3 EP0793054A3 (de) 1997-10-01
EP0793054B1 EP0793054B1 (de) 2005-10-05

Family

ID=9489599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970400424 Expired - Lifetime EP0793054B1 (de) 1996-02-27 1997-02-26 Blende für Kraftfahrzeugscheinwerfer und Scheinwerfer versehen mit einer solchen

Country Status (4)

Country Link
EP (1) EP0793054B1 (de)
DE (1) DE69734301T2 (de)
ES (1) ES2248832T3 (de)
FR (1) FR2745363B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1452799A2 (de) * 2003-02-26 2004-09-01 Valeo Sylvania L.L.C. Lichtblende mit Einsteckverbindung
DE102005033683A1 (de) * 2005-07-19 2007-01-25 Volkswagen Ag Fahrzeugleuchte

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790308B1 (fr) 1999-02-25 2001-05-18 Valeo Vision Projecteur a occulteur aere pour vehicule automobile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1511412A (en) * 1922-07-15 1924-10-14 William D Lyon Glareshield
FR2013967A1 (de) * 1968-07-30 1970-04-10 Bosch
DE19508472A1 (de) * 1994-03-09 1995-11-30 Koito Mfg Co Ltd Fahrzeugscheinwerfer, der einen vereinfachten Aufbau und verminderte Kondensation aufweist
DE19624671A1 (de) * 1995-06-21 1997-01-02 Koito Mfg Co Ltd Kraftfahrzeug-Leuchte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1511412A (en) * 1922-07-15 1924-10-14 William D Lyon Glareshield
FR2013967A1 (de) * 1968-07-30 1970-04-10 Bosch
DE19508472A1 (de) * 1994-03-09 1995-11-30 Koito Mfg Co Ltd Fahrzeugscheinwerfer, der einen vereinfachten Aufbau und verminderte Kondensation aufweist
DE19624671A1 (de) * 1995-06-21 1997-01-02 Koito Mfg Co Ltd Kraftfahrzeug-Leuchte

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1452799A2 (de) * 2003-02-26 2004-09-01 Valeo Sylvania L.L.C. Lichtblende mit Einsteckverbindung
EP1452799A3 (de) * 2003-02-26 2005-10-19 Valeo Sylvania L.L.C. Lichtblende mit Einsteckverbindung
DE102005033683A1 (de) * 2005-07-19 2007-01-25 Volkswagen Ag Fahrzeugleuchte

Also Published As

Publication number Publication date
FR2745363B1 (fr) 1998-05-07
FR2745363A1 (fr) 1997-08-29
DE69734301D1 (de) 2006-02-16
EP0793054A3 (de) 1997-10-01
ES2248832T3 (es) 2006-03-16
EP0793054B1 (de) 2005-10-05
DE69734301T2 (de) 2006-07-13

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