EP0231935B1 - Lampe de phare pour des véhicules automobiles - Google Patents

Lampe de phare pour des véhicules automobiles Download PDF

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Publication number
EP0231935B1
EP0231935B1 EP87101470A EP87101470A EP0231935B1 EP 0231935 B1 EP0231935 B1 EP 0231935B1 EP 87101470 A EP87101470 A EP 87101470A EP 87101470 A EP87101470 A EP 87101470A EP 0231935 B1 EP0231935 B1 EP 0231935B1
Authority
EP
European Patent Office
Prior art keywords
pressure discharge
discharge lamp
lamp according
web
bulb
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
EP87101470A
Other languages
German (de)
English (en)
Other versions
EP0231935A3 (en
EP0231935A2 (fr
Inventor
Manfred Gaugel
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0231935A2 publication Critical patent/EP0231935A2/fr
Publication of EP0231935A3 publication Critical patent/EP0231935A3/de
Application granted granted Critical
Publication of EP0231935B1 publication Critical patent/EP0231935B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • H01J5/56—Shape of the separate part
    • 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

Definitions

  • the invention relates to a high-pressure discharge lamp for use in motor vehicle headlights in accordance with the preamble of claim 1.
  • Such a high-pressure discharge lamp is known from GB-A 2 132 011, the base being made in one piece and the holding element being formed by the power supply line carrying the shielding agent.
  • the anti-glare agent can e.g. be designed as a ceramic screen.
  • US Pat. No. 4,412,273 describes a halogen incandescent lamp for motor vehicle headlights. The halogen incandescent lamp is fastened adjustable in a base sleeve via a holder.
  • two-filament light bulbs are frequently used in the high-beam and low-beam headlamps used in many motor vehicles, the light-emitting element provided for the low-beam light being partially shielded by a dimming cap arranged in the lamp bulb.
  • Pure low-beam headlights for the use of single-filament light bulbs have a shielding means which is arranged outside the lamps and is arranged on the reflector of the headlight or the lamp holder.
  • the invention has for its object a high-pressure discharge lamp for use in motor vehicle headlights to create, which has a shielding agent located outside the lamp bulb.
  • the lamp bulb and the shielding means should form a structural unit that is as simple as possible in terms of construction, and which, using appropriate materials, permits the use of very high surge voltages, as are required in particular in the hot ignition of high-pressure discharge lamps.
  • Shielding means and holding element can consist in one piece of a plastic part; For reasons of temperature resistance, freedom from outgassing and high-voltage insulation, however, when using high-pressure discharge lamps as the light source (s) for motor vehicle headlights, it is advantageous to produce the dimming agent from ceramic.
  • the shielding means has a plate formed on one of its end faces, which is placed on plastic pins which are formed on the fastening body of the holding element and is connected, for example by ultrasonic riveting, to the fastening body of the holding element.
  • the anti-dazzle agent itself consists of a web with a groove, the concave curvature of which faces the lamp bulb.
  • the axis of curvature of the channel generally coincides with the longitudinal axis of the lamp and the curvature itself encloses an angle ⁇ of less than 180 °.
  • the curvature encloses the angle ⁇ of 165 °.
  • This holding element 5 has a slightly barrel-shaped, curved fastening body 6 made of plastic, which is surrounded at its thickest point by a ring 7 made of ferromagnetic material, which is sunk in a groove.
  • the holding element 5 is inserted with its barrel-shaped fastening body 6 into a cylindrical recess in the base sleeve 4 (also made of plastic) and, due to the shape of the fastening body 6, can be moved in a certain range in all directions with respect to the base sleeve 4. Only after the lamp bulb 1 has been adjusted are the holding element 5 and the base sleeve 4 connected by high-frequency heating, the plastic being melted in the region of the metal ring 7.
  • the barrel-shaped fastening body 6 of the holding element 5 are facing the lamp bulb 1 on it Shaped side pin 8, on which a plate 9 provided with corresponding openings is placed and riveted.
  • the plate 9 has a further opening 10 through which one of the power supply lines 2 of the lamp bulb 1 is guided and fastened.
  • a web 11 made of insulating material is formed on the plate 9 and extends parallel to the lamp axis AA. Because of the high operating temperature that arises at the lamp bulb 1, the plate 9 and the web 11 are advantageously made of ceramic.
  • the web 11 carries at its free end a contact element 12 to which the second power supply 3 of the lamp bulb 1 is attached.
  • connection 18 between this second power supply 3 of the lamp bulb 1 and the base contact 13 is arranged on the side of the web 11 facing away from the lamp bulb 1, recessed therein.
  • the lamp bulb 1 can be surrounded by a heating winding 17 for accelerating the start-up of the lamp, the connecting wires of which are also guided along the side of the web 11 facing away from the lamp bulb 1.
  • the web 11 has a groove, the concave groove 14 facing the lamp bulb 1. This web 11 acts as a dimming means to fulfill the asymmetrical light distribution required for road traffic.
  • the angle ⁇ , which is enclosed by the channel arch 14, is 165 ° in this exemplary embodiment.
  • the base of the lamp consists of the holding element 5 carrying the lamp bulb 1, a base sleeve 4 with an integrally formed adjusting ring 15, base contacts 13 and a cover element 16.
  • the holding element 5 with its barrel-shaped fastening body 6 is in the cylindrical recess of the base sleeve 4 used, both parts 4, 6 interacting like a ball joint and then firmly connected by high-frequency heating.
  • the base of the base sleeve 4 has bores whose diameter is slightly larger than that of the power supply 2 to be passed through or connecting wires 18 between the power supply 3 or heating wire 17 and base contacts 13.
  • the base contacts 13 are anchored in the back of the base base and the connection points between the power supply 2, heating wire 17, connecting wires 18 and base contacts 13 are also on this side.
  • the back of the base base is provided with a cover element 16.
  • Figure 2 shows the lamp in plan view.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Claims (11)

  1. Lampe à décharge à haute pression destinée à être utilisée dans des phares de véhicules automobiles, constituée par une ampoule (1) comportant des éléments d'alimentation en courant (2,3), qui ressortent hors des deux extrémités de l'ampoule, une douille de culot (4), un élément de retenue (5) qui fixe l'ampoule (1) de la lampe et comporte un corps de fixation (6) inséré dans la douille de culot (4), au moins deux contacts de culot (13), qui sont raccordés d'une manière électriquement conductrice au moins aux éléments d'alimentation en courant (2,3) de l'ampoule (1) de la lampe, et un dispositif de diaphragmation pour produire la distribution de lumière dissymétrique usuelle dans des phares de véhicules automobiles, ce dispositif de diaphragmation constituant une partie de l'élément de retenue (5) fixant l'ampoule (1) de la lampe et étant réalisé en un matériau électriquement isolant et résistant à la température et placé sur le corps de fixation (6) de l'élément de retenue (5).
  2. Lampe à décharge à haute pression suivant la revendication 1 dans laquelle le dispositif de diaphragmation est réalisé en céramique.
  3. Lampe à décharge à haute pression suivant la revendication 1, dans laquelle le dispositif de diaphragmation est constitué par une barrette (11) possédant une rainure, dont la courbure concave (14) est tournée vers l'ampoule (1) de la lampe.
  4. Lampe à décharge à haute pression suivant la revendication 3, dans laquelle la barrette (1) comporte une plaque (9), sur l'une de ses faces frontales, et est fixée, par l'intermédiaire de cette plaque (9) au corps de fixation (6) de l'élément de retenue (5), qui est raccordé à la douille de culot (4).
  5. Lampe à décharge 3 haute pression suivant la revendication 4, dans laquelle la plaque (9) est rivetée par ultrasons au corps de fixation (6) de l'élément de retenue (5) en matière plastique.
  6. Lampe à décharge à haute pression suivant la revendication 3, dans laquelle l'axe de la partie cintrée de la rainure de la barrette (11) coïncide avec l'axe longitudinal de l'ampoule (1) de la lampe.
  7. Lampe à décharge à haute pression suivant la revendication 5, dans laquelle la partie courbe (4) de la rainure s'étend sur un angle α inférieur à 180°.
  8. Lampe à décharge à haute pression suivant la revendication 3, dans laquelle la partie cintrée (4) de la rainure s'étend sur un angle α égal à 165°.
  9. Lampe à décharge à haute pression suivant la revendication 3, dans laquelle la liaison (18) entre laquelle le contact de capot (13) et l'élément d'alimentation en courant (3) de la lampe, qui est disposé à l'opposé du contact de culot (13), est guidé le long de la face, tournée vers l'ampoule (1) de la lampe, de la barrette (11).
  10. Lampe à décharge à haute pression suivant la revendication 3, dans laquelle l'ampoule (1) de la lampe est entourée par un filament de chauffage (17), dont les extrémités équipées des contacts de capot (13) s'étendent également sur la face de la barrette (11), tournée à l'opposé de l'ampoule (1) de la lampe.
  11. Lampe à décharge à haute pression suivant les revendications 9 et 10, dans laquelle les liaisons (18) entre l'élément d'alimentation en courant (3) de la lampe et le contact de culot (13) ainsi que l'enroulement de chauffage (17) et les contacts de culot (13) sont disposés en renfoncement dans le corps de la barrette (11).
EP87101470A 1986-02-06 1987-02-04 Lampe de phare pour des véhicules automobiles Expired - Lifetime EP0231935B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863603743 DE3603743A1 (de) 1986-02-06 1986-02-06 Hochdruckentladungslampe fuer die verwendung in kraftfahrzeugscheinwerfern
DE3603743 1986-02-06

Publications (3)

Publication Number Publication Date
EP0231935A2 EP0231935A2 (fr) 1987-08-12
EP0231935A3 EP0231935A3 (en) 1989-10-18
EP0231935B1 true EP0231935B1 (fr) 1993-05-26

Family

ID=6293573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101470A Expired - Lifetime EP0231935B1 (fr) 1986-02-06 1987-02-04 Lampe de phare pour des véhicules automobiles

Country Status (4)

Country Link
US (1) US4722039A (fr)
EP (1) EP0231935B1 (fr)
JP (1) JPS62184757A (fr)
DE (2) DE3603743A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007659A1 (de) * 2005-02-19 2006-08-24 Hella Kgaa Hueck & Co. Brenner für eine Gasentladungslampe und Verfahren zur Herstellung des Brenners

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603753A1 (de) * 1986-02-06 1987-08-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische lampe
DE3630335A1 (de) * 1986-09-05 1988-03-10 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe und verfahren zum betrieb
EP0258829A3 (fr) * 1986-09-05 1989-11-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression et méthode pour la faire fonctionner
EP0282119B1 (fr) * 1987-03-06 1993-09-01 Koninklijke Philips Electronics N.V. Ensemble phare-connecteur
NL8801326A (nl) * 1987-09-24 1989-04-17 Philips Nv Gesokkelde elektrische lamp.
JP2691712B2 (ja) * 1987-06-17 1997-12-17 日産自動車 株式会社 プロジェクタ型の自動車用前照灯
DE3837511A1 (de) * 1988-11-04 1990-05-10 Philips Patentverwaltung Kraftfahrzeugscheinwerferlampe und verfahren zu ihrer herstellung
JP2700907B2 (ja) * 1988-12-28 1998-01-21 株式会社小糸製作所 放電ランプの取付構造
JPH0719566B2 (ja) * 1989-07-31 1995-03-06 株式会社小糸製作所 放電ランプの支持構造
US5109323A (en) * 1990-11-21 1992-04-28 Thomas Industries, Inc. Shock resistant lighting fixture
DE9207073U1 (fr) * 1992-05-25 1992-08-13 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen, De
DE4404458A1 (de) * 1993-02-16 1994-08-25 Koito Mfg Co Ltd Isoliersockel für Entladungslampenvorrichtung
US5709451A (en) * 1994-11-25 1998-01-20 General Motors Corporation High intensity descharge bulb parabolic reflector vehicle headlamp
FR2734043B1 (fr) * 1995-05-10 1997-08-01 Valeo Vision Projecteur de vehicule automobile comportant des moyens d'occultation de lumiere parasite, et lampe pourvue de tels moyens d'occultation
DE19538064A1 (de) * 1995-10-13 1997-04-17 Bosch Gmbh Robert Entladungslampe, insbesondere für Fahrzeugbeleuchtungssysteme
JP3641120B2 (ja) * 1997-12-08 2005-04-20 株式会社小糸製作所 放電ランプ装置
US6460870B2 (en) * 1999-10-29 2002-10-08 Wing Enterprises, Inc. Stowaway, receiver hitch
US6422729B1 (en) 2000-01-27 2002-07-23 Honeywell International Inc. Method and apparatus for dehydrating a vehicle lamp housing
US7506994B1 (en) 2005-04-29 2009-03-24 Genlyte Thomas Group Llc Fluorescent lamp luminaire
CA2572211C (fr) * 2006-01-05 2014-10-14 Canlyte Inc. Appareil et ensemble d'eclairage
US7950833B1 (en) 2008-06-17 2011-05-31 Genlyte Thomas Group Llc Splay frame luminaire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412273A (en) * 1982-01-22 1983-10-25 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Halogen incandescent lamp with part metal, part plastic socket, particularly for automotive headlights
GB2132011A (en) * 1982-12-01 1984-06-27 Philips Nv Gas discharge lamp

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR93289E (fr) * 1966-12-19 1969-03-07 Cibie Projecteurs Projecteur perfectionné pour véhicule automobile.
DE2043179C3 (de) * 1970-09-01 1975-01-09 Mierbach, Walter, 5090 Leverkusen Gasentladungslampe mit einem justierbaren Sockel
US4140385A (en) * 1976-03-22 1979-02-20 Xerox Corporation Low pressure metal or metal halide lamps for photocopying applications
DE3033688A1 (de) * 1980-09-08 1982-04-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Anordnung mit hochdruckentladungslampe und reflektor als baueinheit
DE8310715U1 (de) * 1983-04-12 1983-12-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Reflektorlampe
DE3412489A1 (de) * 1984-04-03 1985-10-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Einseitig gesockelte hochdruckentladungslampe
HU191445B (en) * 1984-09-21 1987-02-27 Tungsram Rt,Hu Method for firing high-pressure sodium lamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412273A (en) * 1982-01-22 1983-10-25 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Halogen incandescent lamp with part metal, part plastic socket, particularly for automotive headlights
GB2132011A (en) * 1982-12-01 1984-06-27 Philips Nv Gas discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007659A1 (de) * 2005-02-19 2006-08-24 Hella Kgaa Hueck & Co. Brenner für eine Gasentladungslampe und Verfahren zur Herstellung des Brenners

Also Published As

Publication number Publication date
US4722039A (en) 1988-01-26
DE3785940D1 (de) 1993-07-01
EP0231935A3 (en) 1989-10-18
DE3603743A1 (de) 1987-08-13
EP0231935A2 (fr) 1987-08-12
JPS62184757A (ja) 1987-08-13

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