EP0898113B1 - Scheinwerfer mit Gasentladungslampe - Google Patents

Scheinwerfer mit Gasentladungslampe Download PDF

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Publication number
EP0898113B1
EP0898113B1 EP98120777A EP98120777A EP0898113B1 EP 0898113 B1 EP0898113 B1 EP 0898113B1 EP 98120777 A EP98120777 A EP 98120777A EP 98120777 A EP98120777 A EP 98120777A EP 0898113 B1 EP0898113 B1 EP 0898113B1
Authority
EP
European Patent Office
Prior art keywords
reflector
headlamp
discharge lamp
gas discharge
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.)
Expired - Lifetime
Application number
EP98120777A
Other languages
English (en)
French (fr)
Other versions
EP0898113A1 (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
Publication of EP0898113A1 publication Critical patent/EP0898113A1/de
Application granted granted Critical
Publication of EP0898113B1 publication Critical patent/EP0898113B1/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 automotive headlights, and more particularly to headlamp type projectors dump.
  • Lamp headlamps for motor vehicles to discharge are powered by alternating currents, 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 the projector optical performance can only be found mitigated.
  • a lamp projector discharge for a motor vehicle comprising a concave reflector in the bottom of which is arranged a discharge lamp, as well as a concealer, (Projector of the type disclosed, for example, by WO-A-91/15711 or DE-A-19611308 characterized in what the concealer is connected to ground.
  • the projector illustrated in Figure 1 includes mainly a reflector 1, a lamp 2 and a concealer 3.
  • the reflector 1 conventionally has a shape concave which reflects the light emitted by the lamp 2 of so that it comes out of the spotlight in a beam directed.
  • This concave shape is for example a shape dish or other, a focus of which is arranged at near the lamp 2.
  • This reflector 1 is for example constituted by a sheet or wall made of plastic, on which is deposited an aluminum film.
  • 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 supply base 2b extends to outside of reflector 1, from the bottom of the latter and is in direct contact with 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 the different masses are connected and shielding parts of the various system components electronic (control ballast, 12 V connectors and high voltage, etc.).
  • This ring 4 is used to capture electromagnetic emissions from 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 rim 5 that has the base 2b of the lamp.
  • the reflector 1 has, on its external face, one or more protrusions 1a - which are used for lamp positioning - against which edge 5 of the base 2b comes to bear, these protuberances being moreover 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 in relation to reflector 1 via two fixing lugs 6 extending between said blackout 3 and reflector 1, these tabs 6 being distributed on either side of the discharge tube 2a.
  • These fixing lugs 6 are lugs metal. 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 soldering of its end to the edge 4a - either at a ground connection outside the reflector 1.
  • the aluminized face of the reflector 1 and blackout 3 - both of which are likely to constitute radiation emission antennas harmful electromagnetic - are both related to 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 has a reflector 11, a discharge lamp 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 metal ring 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 mass, so that the aluminized face of the reflector 11, the ring 14 and the concealer 13 are both grounded.
  • the concealer 13 is in support via of these fixing lugs 16 on the reflector 11, this which prevents the movements of the screen 13 towards the back of the reflector.
  • the ring 24 is fixed to the legs of fixing 26 by elements which extend radially.
  • the fixing lugs 26 pass through through relative to reflector 21 and folded 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 screen 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)

Claims (4)

  1. Fahrzeugscheinwerfer mit Entladungslampe mit einem konkaven Reflektor (1, 11, 21), an dessen Boden eine Entladungslampe (2, 12, 22) sowie ein Abschatter (3, 13, 23) angeordnet ist,
    dadurch gekennzeichnet, daß der Abschatter (3, 13, 23) geerdet ist.
  2. Scheinwerfer nach Anspruch 1,
    dadurch gekennzeichnet, daß die Innenseite des Reflektors (1, 11, 21) geerdet ist.
  3. Scheinwerfer nach den Ansprüchen 1 und 2 in Kombination,
    dadurch gekennzeichnet, daß der Abschatter (3, 13, 23) in bezug auf den Reflektor (1, 11, 21) mittels Befestigungsklammern (6, 16, 26) mechanisch befestigt ist, die an der Innenseite des Reflektors (1, 11, 21) anliegen.
  4. Scheinwerfer nach Anspruch 3,
    dadurch gekennzeichnet, daß wenigstens eine Befestigungsklammer (6, 16, 26) den Reflektor durchquert, wobei ihr Ende außerhalb des Reflektors mit zusätzlichen Mitteln zusammenwirkt, um die Befestigung der Klammer in bezug auf den Reflektor zu gewährleisten.
EP98120777A 1996-11-13 1997-11-13 Scheinwerfer mit Gasentladungslampe Expired - Lifetime EP0898113B1 (de)

Applications Claiming Priority (3)

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
EP97402709A EP0843125B1 (de) 1996-11-13 1997-11-13 Scheinwerfer mit Gasentladungslampe

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97402709A Division EP0843125B1 (de) 1996-11-13 1997-11-13 Scheinwerfer mit Gasentladungslampe

Publications (2)

Publication Number Publication Date
EP0898113A1 EP0898113A1 (de) 1999-02-24
EP0898113B1 true EP0898113B1 (de) 2003-01-08

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 After (1)

Application Number Title Priority Date Filing Date
EP97402709A Expired - Lifetime EP0843125B1 (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) DE69710559T2 (de)
ES (2) ES2186076T3 (de)
FR (1) FR2755747B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2767377B1 (fr) * 1998-10-13 2000-05-26 Valeo Vision Projecteur a lampe a decharge
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
FR2816035B1 (fr) * 2000-10-30 2003-04-11 Valeo Vision Projecteur de vehicule automobile a moyens perfectionnes de blindage electromagnetique
EP3516297B1 (de) * 2016-09-22 2020-06-17 Signify Holding B.V. Schnapp- und erdungsanordnung für kern-troffer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101722A1 (de) * 1990-04-04 1991-10-10 Bosch Gmbh Robert Scheinwerfer fuer kraftfahrzeuge
JPH0740442B2 (ja) * 1990-07-23 1995-05-01 株式会社小糸製作所 車輌用前照灯
US5343370A (en) * 1990-10-23 1994-08-30 Koito Manufacturing Co., Ltd. Motor vehicle headlamp
DE4139905A1 (de) * 1991-12-04 1993-06-09 Robert Bosch Gmbh, 7000 Stuttgart, De Steckverbindung zur kontaktierung einer gasentladungslampe bei einem scheinwerfer
DE4310307B4 (de) * 1993-03-30 2004-10-14 Robert Bosch Gmbh Scheinwerfer für Fahrzeuge
FR2732654B1 (fr) * 1995-04-06 1997-06-20 Valeo Vision Projecteur pour vehicule automobile a lampe a alimentation alternative
JP3159078B2 (ja) * 1996-08-30 2001-04-23 株式会社デンソー 高圧放電灯装置

Also Published As

Publication number Publication date
DE69718309T2 (de) 2003-10-23
DE69718309D1 (de) 2003-02-13
EP0843125A1 (de) 1998-05-20
EP0843125B1 (de) 2002-02-20
DE69710559T2 (de) 2003-01-09
JP4229995B2 (ja) 2009-02-25
JPH10162605A (ja) 1998-06-19
EP0898113A1 (de) 1999-02-24
DE69710559D1 (de) 2002-03-28
FR2755747B1 (fr) 1999-01-29
FR2755747A1 (fr) 1998-05-15
ES2186076T3 (es) 2003-05-01
ES2170349T3 (es) 2002-08-01

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