WO2000033343A1 - Lampe electrique pour un projecteur de vehicule - Google Patents

Lampe electrique pour un projecteur de vehicule Download PDF

Info

Publication number
WO2000033343A1
WO2000033343A1 PCT/DE1999/003762 DE9903762W WO0033343A1 WO 2000033343 A1 WO2000033343 A1 WO 2000033343A1 DE 9903762 W DE9903762 W DE 9903762W WO 0033343 A1 WO0033343 A1 WO 0033343A1
Authority
WO
WIPO (PCT)
Prior art keywords
lamp
light
bulb
plastic
lamp bulb
Prior art date
Application number
PCT/DE1999/003762
Other languages
German (de)
English (en)
Inventor
Peter Helbig
Original Assignee
Patent-Treuhand-Gesellschaft für elektrische Glühlampen 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 für elektrische Glühlampen mbH filed Critical Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
Priority to EP99962083A priority Critical patent/EP1051720B1/fr
Priority to CA002318850A priority patent/CA2318850A1/fr
Priority to DE59912266T priority patent/DE59912266D1/de
Priority to AT99962083T priority patent/ATE299615T1/de
Priority to JP2000585901A priority patent/JP4436570B2/ja
Priority to HU0100213A priority patent/HU225579B1/hu
Publication of WO2000033343A1 publication Critical patent/WO2000033343A1/fr

Links

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
    • 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
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the invention relates to an electric lamp for a vehicle headlight according to the preamble of patent claim 1.
  • Such an electric lamp is disclosed, for example, in international patent application WO 97/25733.
  • This laid-open specification describes an electric light bulb, in particular a motor vehicle headlight lamp, with an incandescent filament enclosed in a glass lamp bulb and a lamp base consisting of metal and plastic parts.
  • the gas-tight pinch base of the lamp bulb is fixed in a metallic holder part, which in turn is connected directly or via an intermediate ring to a metallic, ring-shaped carrier sleeve.
  • the metallic support sleeve is anchored in the plastic base part of the lamp base equipped with the electrical connections of the lamp.
  • the ring-shaped carrier sleeve has three reference lugs which are arranged in one plane and are distributed equidistantly around the circumference of the carrier sleeve and which engage in the lamp mounting opening of the reflector, and a pressure spring acting radially outwards , which rests resiliently on the edge of the lamp mounting opening of the reflector.
  • the mounting opening of the reflector is sealed by means of a silicone or rubber ring which is arranged between the outer wall of the reflector and the annular flange of the plastic base part.
  • a disadvantage of this lamp is that the plastic surface of the flange is accessible through the mounting opening of the reflector for the electromagnetic radiation emitted by the filament. This plastic surface is affected by the infrared radiation emitted by the incandescent filament and additionally by the absorption of the generated light heats and tends to evaporate. In addition, the aforementioned light absorption reduces the efficiency of the headlamp.
  • the vehicle headlight lamp according to the invention has a lamp base, a translucent lamp bulb and at least one illuminant enclosed by the lamp bulb, the lamp base having a plastic base part provided with the electrical connections of the lamp and at least one metallic holder part for the lamp bulb anchored in the plastic base part.
  • the surfaces of the plastic base part facing the lamp bulb are provided with a light-reflecting coating.
  • the light-reflecting coating reduces the light absorption of the plastic base part and thereby reduces its thermal load and thus improves the evaporation behavior of the plastic base part.
  • the light-reflecting coating increases the efficiency of the headlamp, since the light striking the plastic surfaces can now be used by the light-reflecting coating for the headlamp reflector.
  • the light-reflecting coating is advantageously embodied as an aluminum layer, because it has the same high level of light reflection as the headlight reflector and sufficient adhesion to the plastic base part.
  • the aluminum layer is advantageously designed as an aluminum-containing color layer.
  • the aluminum layer can advantageously also consist of an aluminum sheet which covers the lamp bulb. nimble plastic! covers the lamp base and the side facing the lamp bulb is polished.
  • Figure 1 is a schematic, partially sectioned representation of the preferred embodiment of the lamp according to the invention
  • Figure 2 is a plan view of the plastic base part and the support sleeve of the lamp shown in Figure 1
  • the preferred exemplary embodiment of the invention is a single-filament halogen incandescent lamp which is intended for use in a motor vehicle headlight.
  • This lamp has a glass, essentially cylindrical lamp bulb 10 with a gas-tightly closed squeezing foot 10a.
  • the dome 10b of the lamp bulb 10 is provided with a light-absorbing coating.
  • the squeezing foot 10a of the lamp bulb 10 is fixed in a metallic holder, which consists of the cup-like holder part 14a, the intermediate ring 14e and the annular carrier sleeve 14b.
  • the lamp base also has a plastic base part 15 provided with the electrical connections 16, 17 of the lamp, in which the ring-shaped metallic carrier sleeve 14b is anchored.
  • the carrier sleeve 14b has three reference lugs 14c lying in one plane and a pressure spring 14d for mounting the lamp in the reflector 20 of a motor vehicle headlight.
  • the reflector 20 is sealed by means of a silicone sealing ring 19 which bears on the outer wall 20b of the reflector 20 and on the annular flange 15a of the plastic base part 15.
  • a silicone sealing ring 19 which bears on the outer wall 20b of the reflector 20 and on the annular flange 15a of the plastic base part 15.
  • FIG. 1 the structure of the lamp according to the preferred embodiment and its use represented schematically in a headlight.
  • the upper side of the annular flange 15a facing the lamp bulb 10 is printed with a light-reflecting, aluminum-containing color layer 21 (FIG. 2), which has essentially the same light reflectance and the same color tone as the reflector 20.
  • an aluminum layer can also be vapor-deposited on the top of the annular flange 15a.
  • a further alternative to the colored layer consists in covering the upper side of the annular flange 15a with an aluminum sheet, the surface of which facing the lamp bulb is polished.
  • another metallic coating of the top of the annular flange 15a can also be carried out, provided that this has a similarly high degree of reflection as the reflection surface of the headlight reflector.
  • the reflective coating 21 can also consist of a steel sheet which covers the upper side of the annular flange 15a facing the lamp bulb.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention concerne une lampe pour un projecteur de véhicule, équipée d'un culot en métal et en plastique. Ce culot présente une fixation métallique (14a-14e) l'ampoule (10) de la lampe, et une partie de culot en plastique (15) comportant les raccordements électriques (16, 17) de la lampe, la fixation métallique (14a-14e) étant ancrée dans ladite partie de culot. Une bague d'étanchéité (19) en silicone ou en caoutchouc, placée entre la paroi extérieure de réflecteur (20) et la bordure annulaire (15a) de la partie de culot en plastique (15) sert à assurer l'étanchéité de l'ouverture de réflecteur se présentant sous la forme d'une douille de lampe. Selon l'invention, le côté supérieur orienté vers l'ampoule (10), de la bordure annulaire (15a), présente un revêtement réfléchissant la lumière.
PCT/DE1999/003762 1998-12-01 1999-11-26 Lampe electrique pour un projecteur de vehicule WO2000033343A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP99962083A EP1051720B1 (fr) 1998-12-01 1999-11-26 Lampe electrique pour un projecteur de vehicule
CA002318850A CA2318850A1 (fr) 1998-12-01 1999-11-26 Lampe electrique pour un phare de vehicule
DE59912266T DE59912266D1 (de) 1998-12-01 1999-11-26 Elektrische lampe für einen fahrzeugscheinwerfer
AT99962083T ATE299615T1 (de) 1998-12-01 1999-11-26 Elektrische lampe für einen fahrzeugscheinwerfer
JP2000585901A JP4436570B2 (ja) 1998-12-01 1999-11-26 自動車前照灯のための電気ランプ
HU0100213A HU225579B1 (en) 1998-12-01 1999-11-26 Electrical lamp for a headlight of a vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19855403A DE19855403A1 (de) 1998-12-01 1998-12-01 Elektrische Lampe für einen Fahrzeugscheinwerfer
DE19855403.6 1998-12-01

Publications (1)

Publication Number Publication Date
WO2000033343A1 true WO2000033343A1 (fr) 2000-06-08

Family

ID=7889633

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/003762 WO2000033343A1 (fr) 1998-12-01 1999-11-26 Lampe electrique pour un projecteur de vehicule

Country Status (11)

Country Link
EP (1) EP1051720B1 (fr)
JP (1) JP4436570B2 (fr)
KR (1) KR100669555B1 (fr)
CN (1) CN1289446A (fr)
AT (1) ATE299615T1 (fr)
CA (1) CA2318850A1 (fr)
DE (2) DE19855403A1 (fr)
ES (1) ES2244234T3 (fr)
HU (1) HU225579B1 (fr)
TW (1) TW432444B (fr)
WO (1) WO2000033343A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4068124B2 (ja) 2004-10-04 2008-03-26 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 改良された熱伝導を備えるランプソケット
DE102005007048A1 (de) * 2005-02-15 2006-08-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampensockel und elektrische Lampe
US9285093B2 (en) * 2013-03-15 2016-03-15 Federal-Mogul Corporation Self-locating light source module

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2072942A (en) * 1980-03-28 1981-10-07 Philips Nv Low-pressure mercury vapour discharge lamp
FR2557358A1 (fr) * 1983-12-23 1985-06-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Culot pour lampe a decharge a culotage d'un seul cote
FR2557357A1 (fr) * 1983-12-23 1985-06-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Culot intermediaire pour lampe a decharge a culotage d'un seul cote
EP0210877A1 (fr) * 1985-06-27 1987-02-04 Elene S.A. Lampe à tube fluorescent
WO1996007193A1 (fr) * 1994-08-26 1996-03-07 Philips Electronics N.V. Lampe electrique a reflecteur
US5506474A (en) * 1995-03-31 1996-04-09 General Electric Company Compact fluorescent lamp using a light reflecting adhesive material
DE19546198A1 (de) * 1995-12-11 1997-06-12 Holzer Walter Prof Dr H C Ing Kompaktlampe
WO1997025733A1 (fr) * 1996-01-11 1997-07-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe electrique munie d'un culot sans ciment
JPH09320527A (ja) * 1996-05-31 1997-12-12 Toko Inc 携帯電灯用蛍光管

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2072942A (en) * 1980-03-28 1981-10-07 Philips Nv Low-pressure mercury vapour discharge lamp
FR2557358A1 (fr) * 1983-12-23 1985-06-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Culot pour lampe a decharge a culotage d'un seul cote
FR2557357A1 (fr) * 1983-12-23 1985-06-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Culot intermediaire pour lampe a decharge a culotage d'un seul cote
EP0210877A1 (fr) * 1985-06-27 1987-02-04 Elene S.A. Lampe à tube fluorescent
WO1996007193A1 (fr) * 1994-08-26 1996-03-07 Philips Electronics N.V. Lampe electrique a reflecteur
US5506474A (en) * 1995-03-31 1996-04-09 General Electric Company Compact fluorescent lamp using a light reflecting adhesive material
DE19546198A1 (de) * 1995-12-11 1997-06-12 Holzer Walter Prof Dr H C Ing Kompaktlampe
WO1997025733A1 (fr) * 1996-01-11 1997-07-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe electrique munie d'un culot sans ciment
JPH09320527A (ja) * 1996-05-31 1997-12-12 Toko Inc 携帯電灯用蛍光管

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04 31 March 1998 (1998-03-31) *

Also Published As

Publication number Publication date
ES2244234T3 (es) 2005-12-01
HU225579B1 (en) 2007-03-28
CN1289446A (zh) 2001-03-28
CA2318850A1 (fr) 2000-06-08
HUP0100213A2 (hu) 2001-05-28
TW432444B (en) 2001-05-01
KR100669555B1 (ko) 2007-01-15
JP2002531917A (ja) 2002-09-24
ATE299615T1 (de) 2005-07-15
DE19855403A1 (de) 2000-06-08
KR20010040526A (ko) 2001-05-15
HUP0100213A3 (en) 2001-06-28
DE59912266D1 (de) 2005-08-18
EP1051720A1 (fr) 2000-11-15
EP1051720B1 (fr) 2005-07-13
JP4436570B2 (ja) 2010-03-24

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