EP0843125A1 - Scheinwerfer mit Gasentladungslampe - Google Patents

Scheinwerfer mit Gasentladungslampe Download PDF

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Publication number
EP0843125A1
EP0843125A1 EP97402709A EP97402709A EP0843125A1 EP 0843125 A1 EP0843125 A1 EP 0843125A1 EP 97402709 A EP97402709 A EP 97402709A EP 97402709 A EP97402709 A EP 97402709A EP 0843125 A1 EP0843125 A1 EP 0843125A1
Authority
EP
European Patent Office
Prior art keywords
reflector
projector according
fixing
ring
lamp
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
EP97402709A
Other languages
English (en)
French (fr)
Other versions
EP0843125B1 (de
Inventor
Vincent Raillard
Benoít Reiss
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 EP98120777A priority Critical patent/EP0898113B1/de
Publication of EP0843125A1 publication Critical patent/EP0843125A1/de
Application granted granted Critical
Publication of EP0843125B1 publication Critical patent/EP0843125B1/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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/17—Discharge light sources
    • F21S41/172—High-intensity discharge light sources
    • 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

Definitions

  • the present invention relates to projectors of motor vehicles, and more particularly to discharge lamp type headlamps.
  • Motor vehicle headlamps discharges are powered by alternating currents, from preferably square, which increases notably the lifetime of the lamps.
  • each chain link mesh which creates glare incompatible with regulatory requirements.
  • An object of the invention is therefore to propose a motor vehicle headlamp whose sources of noise is reduced, without performance projector optics are not attenuated.
  • a lamp projector with discharge for a motor vehicle comprising a reflector concave in the bottom of which is placed a lamp with discharge, characterized in that it comprises, inside of the reflector, a metal ring that surrounds the lamp discharge near its base and which is connected to the mass.
  • the projector illustrated in Figure 1 has mainly a reflector 1, a lamp 2 and a concealer 3.
  • the reflector 1 conventionally has a concave shape which reflects the light emitted by the lamp 2 so as to what it leaves the projector in a directed beam.
  • This concave shape is for example a paraboloid shape or other, a home of which is arranged near the lamp 2.
  • This reflector 1 is for example constituted by a sheet or wall made of plastic, on which an aluminum film is deposited.
  • the lamp 2 is for example a discharge lamp with sodium iodides.
  • FIG. 1 There is shown schematically in Figure 1 its discharge tube 2a, and its supply base 2b.
  • the discharge tube 2a extends inside the reflector 1, from its bottom, along the axis of said reflector 1; the 2b supply base extends outside the reflector 1, from the bottom of it and is in support direct on said reflector 1.
  • An annular metal ring 4 surrounds the tube discharge 2 near the reflector 1.
  • This ring metallic 4 is, as will be described later in more detail, linked to the common ground of the system, on which are connected the different masses and pieces of shielding of the various components of the electronic system (control ballast, 12 V and high voltage connectors, etc, ).
  • This ring 4 is used to capture emissions the lamp 2.
  • this metal ring 4 is ends with an outer annular rim 4a which, when the ring 4 is in place on the reflector 1, is interposed between the external face of the reflector and a flange 5 that presents the base 2b of the lamp.
  • the reflector 1 has, on its external face, a or several protrusions la - which are used for lamp positioning - against which flange 5 of the base 2b comes to bear, these protuberances being by elsewhere intended to engage in an orifice that the annular rim 4a of the ring 4, to hold said ring 4 in place by relative to reflector 1.
  • the cover 3 forming a concealer is held in place relative to reflector 1 via two fixing lugs 6 extending between said concealer 3 and the reflector 1, these tabs 6 being distributed on one side and on the other side of the discharge tube 2a.
  • These fixing lugs 6 are lugs metallic. They are, at their end opposite to the screen 3, pressing against the aluminized face of the reflector 1, at least one of these legs 6 passing through said reflector 1 at an orifice 7 that the latter present (bottom hole or specific bore).
  • This through leg 6 is connected either to the ring located around the base 2b - for example by welding from its end on edge 4a - either to a socket ground outside the reflector 1.
  • the aluminized face of the reflector 1 and the concealer 3 - both of which are likely to constitute radiation emission antennas harmful electromagnetic - are both linked to the mass, which prevents any emission.
  • Attaching the shield 3 to the reflector 1 can be achieved by means of the ring 4, the tabs 6 being scratched through the rim 4a of said ring 4 to ensure at the same time the grounding of the concealer 3 and the mechanical retention of said concealer 3.
  • This projector comprises a reflector 11, a lamp discharge 12 which has a tube 12a and a base 12b, as well as a concealer 13 fixed relative to the reflector 11 by means of fixing lugs 16.
  • a metal ring 14 connected to earth surrounds part 12a of the discharge lamp.
  • This ring metallic 14 does not have an annular rim similar to ledge 4a, but is fixed to the spotlight via legs 18 which extend radially from the outer face of said ring 14 to the fixing lugs 16 of the screen.
  • the screen 13 is for example fixed on the reflector 11 by folding legs 16 on protrusions 19 on the rear side thereof, these legs 16 being otherwise in contact with the face aluminized reflector 11.
  • At least one of the legs 16 is connected to the ground, so that the aluminized face of the reflector 11, the ring 14 and blackout 13 are both grounded.
  • the concealer 13 is in support by means of these fixing lugs 16 on the reflector 11, which prevents movement of the concealer 13 towards the rear of the reflector.
  • FIG. 3 Another variant embodiment of the invention has again illustrated in FIG. 3.
  • the ring 24 is fixed to the fixing lugs 26 by elements which extend radially.
  • the fixing lugs 26 pass through through relative to reflector 21 and folded down in whole or in part on a metal crown 30, fixed by screwing on the reflector 21.
  • the common ground connection is then placed either on one of the fixing lugs 26 of the concealer 23, either on the screwed metal crown 29.
  • the weight gain is achieved by the metallic mask of the reflector.

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)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP97402709A 1996-11-13 1997-11-13 Scheinwerfer mit Gasentladungslampe Expired - Lifetime EP0843125B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98120777A EP0898113B1 (de) 1996-11-13 1997-11-13 Scheinwerfer mit Gasentladungslampe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9613799A FR2755747B1 (fr) 1996-11-13 1996-11-13 Projecteur a lampe a decharge
FR9613799 1996-11-13

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP98120777A Division EP0898113B1 (de) 1996-11-13 1997-11-13 Scheinwerfer mit Gasentladungslampe

Publications (2)

Publication Number Publication Date
EP0843125A1 true EP0843125A1 (de) 1998-05-20
EP0843125B1 EP0843125B1 (de) 2002-02-20

Family

ID=9497552

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98120777A Expired - Lifetime EP0898113B1 (de) 1996-11-13 1997-11-13 Scheinwerfer mit Gasentladungslampe
EP97402709A Expired - Lifetime EP0843125B1 (de) 1996-11-13 1997-11-13 Scheinwerfer mit Gasentladungslampe

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP98120777A Expired - Lifetime EP0898113B1 (de) 1996-11-13 1997-11-13 Scheinwerfer mit Gasentladungslampe

Country Status (5)

Country Link
EP (2) EP0898113B1 (de)
JP (1) JP4229995B2 (de)
DE (2) DE69718309T2 (de)
ES (2) ES2186076T3 (de)
FR (1) FR2755747B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2767377A1 (fr) * 1998-10-13 1999-02-19 Valeo Vision Projecteur a lampe a decharge
FR2816035A1 (fr) * 2000-10-30 2002-05-03 Valeo Vision Projecteur de vehicule automobile a moyens perfectionnes de blindage electromagnetique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3854421B2 (ja) 1999-02-23 2006-12-06 株式会社小糸製作所 放電バルブを有する車両用灯具
CN109716022B (zh) * 2016-09-22 2021-01-15 昕诺飞控股有限公司 核心槽箱式灯支架卡入和接地组件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015711A1 (de) * 1990-04-04 1991-10-17 Robert Bosch Gmbh Scheinwerfer für kraftfahrzeuge
GB2249165A (en) * 1990-10-23 1992-04-29 Koito Mfg Co Ltd Motor vehicle head lamp
DE4139905A1 (de) * 1991-12-04 1993-06-09 Robert Bosch Gmbh, 7000 Stuttgart, De Steckverbindung zur kontaktierung einer gasentladungslampe bei einem scheinwerfer
GB2276714A (en) * 1993-03-30 1994-10-05 Bosch Gmbh Robert Headlight for vehicles
DE19611308A1 (de) * 1995-04-06 1996-10-10 Valeo Vision Kraftfahrzeugscheinwerfer mit Wechselstrombetriebener Lampe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0740442B2 (ja) * 1990-07-23 1995-05-01 株式会社小糸製作所 車輌用前照灯
JP3159078B2 (ja) * 1996-08-30 2001-04-23 株式会社デンソー 高圧放電灯装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015711A1 (de) * 1990-04-04 1991-10-17 Robert Bosch Gmbh Scheinwerfer für kraftfahrzeuge
GB2249165A (en) * 1990-10-23 1992-04-29 Koito Mfg Co Ltd Motor vehicle head lamp
DE4139905A1 (de) * 1991-12-04 1993-06-09 Robert Bosch Gmbh, 7000 Stuttgart, De Steckverbindung zur kontaktierung einer gasentladungslampe bei einem scheinwerfer
GB2276714A (en) * 1993-03-30 1994-10-05 Bosch Gmbh Robert Headlight for vehicles
DE19611308A1 (de) * 1995-04-06 1996-10-10 Valeo Vision Kraftfahrzeugscheinwerfer mit Wechselstrombetriebener Lampe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2767377A1 (fr) * 1998-10-13 1999-02-19 Valeo Vision Projecteur a lampe a decharge
FR2816035A1 (fr) * 2000-10-30 2002-05-03 Valeo Vision Projecteur de vehicule automobile a moyens perfectionnes de blindage electromagnetique
WO2002037024A1 (fr) * 2000-10-30 2002-05-10 Valeo Vision Projecteur de vehicule automobile a moyens perfectionnes de blindage electromagnetique

Also Published As

Publication number Publication date
EP0898113B1 (de) 2003-01-08
EP0843125B1 (de) 2002-02-20
DE69718309D1 (de) 2003-02-13
ES2170349T3 (es) 2002-08-01
DE69718309T2 (de) 2003-10-23
DE69710559D1 (de) 2002-03-28
JP4229995B2 (ja) 2009-02-25
JPH10162605A (ja) 1998-06-19
EP0898113A1 (de) 1999-02-24
ES2186076T3 (es) 2003-05-01
FR2755747A1 (fr) 1998-05-15
DE69710559T2 (de) 2003-01-09
FR2755747B1 (fr) 1999-01-29

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