EP1294013B1 - Lampe à incandescence pour projecteur de véhicule automobile - Google Patents

Lampe à incandescence pour projecteur de véhicule automobile Download PDF

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Publication number
EP1294013B1
EP1294013B1 EP02018370A EP02018370A EP1294013B1 EP 1294013 B1 EP1294013 B1 EP 1294013B1 EP 02018370 A EP02018370 A EP 02018370A EP 02018370 A EP02018370 A EP 02018370A EP 1294013 B1 EP1294013 B1 EP 1294013B1
Authority
EP
European Patent Office
Prior art keywords
incandescent
filament
incandescent filament
power supply
common plane
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
EP02018370A
Other languages
German (de)
English (en)
Other versions
EP1294013A3 (fr
EP1294013A2 (fr
Inventor
Gerhard Behr
Peter Helbig
Christian Seichter
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 EP1294013A2 publication Critical patent/EP1294013A2/fr
Publication of EP1294013A3 publication Critical patent/EP1294013A3/fr
Application granted granted Critical
Publication of EP1294013B1 publication Critical patent/EP1294013B1/fr
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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/16—Electric connection thereto
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • 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

Definitions

  • the invention relates to an incandescent lamp for a motor vehicle headlight according to the preamble of patent claim 1.
  • Such a light bulb is for example in the European Patent Application EP 0 791 779 disclosed.
  • This document describes a motor vehicle headlight with a two-filament halogen incandescent lamp, which has an axisymmetric lamp vessel with an axially oriented filament and a transversely aligned filament and a shading device for the axial spiral.
  • the frame serving to hold and supply the incandescent filaments is constructed in such a way that at least the power supply wire for holding the shading device has a section protruding from the common plane of the current supply wires and passing past the transversely aligned incandescent filament, which is shaped in such a way he is outside the cardinal Light emission of the second filament is arranged.
  • the main light emission direction is meant the directions perpendicular to the longitudinal axis of the transversely oriented filament.
  • the aforementioned power supply wire is guided past the transversely oriented filament, so that light rays emitted by this filament perpendicular to its longitudinal axis, can not hit the aforementioned power supply wire.
  • this power supply wire has a portion projecting from the common plane of the power supply wires and passing the transversely oriented filament, which is shaped or arranged such that it is not struck by light rays that emit this filament perpendicular to its longitudinal axis. If the motor vehicle headlight predominantly uses only the downwardly radiated light component of the transversely aligned incandescent filament, then it is sufficient that only the shading device carrying power supply wire is guided past the transversely oriented incandescent filament to significantly reduce the shading effects caused by the frame and the usable portion of the significantly increase the transversal coil emitted light.
  • the motor vehicle headlight also uses the upwardly radiated light component of the transversely oriented incandescent filament, then it would be advantageous for the power supply wire connected to the axially aligned - that is, aligned parallel to the lamp vessel axis - to be guided past the transversely oriented incandescent filament in order to reduce the shadowing effects caused by the filament To significantly reduce frame and increase the usable portion of the emitted light from the transverse spiral significantly. Most of the shading effects can be reduced if both aforementioned power supply wires are passed by the transverse spiral.
  • the frame structure according to the invention is also distinguished by a particularly simple construction.
  • the three power supply wires are fixed in a common plane perpendicular to the longitudinal axis of the aligned relative to the lamp vessel axis filament.
  • angled end of the first power supply wire For holding and electrical contacting of the transversely oriented incandescent filament projecting from the common plane portion of the shading device bearing Power supply wire and also protruding from the common plane, angled end of the first power supply wire. Therefore, the ends of the transversely oriented filament need not be angled to connect to their power supply wires. This increases the vibration resistance of the lamp or the coil holder.
  • the protruding from the common plane of the power supply wires portion of the shading device carrying power supply wire is advantageously formed substantially trapezoidal, and the end of this section is arranged obliquely to the lamp vessel axis and welded to the shading device. As a result, only three bends are required to pass the power supply wire carrying the shading device to the transversely oriented filament.
  • the shape of the shading device for the axial helix has also been improved. It has on its side facing the axially aligned filament a survey on to be able to weld the end of this filament easier with the shading device can.
  • the shading device has a slightly curved Abschatternase extending into the space between the two filaments.
  • the width of the Abschatternase advantageously corresponds to the length of the light-emitting part of the transverse spiral in order to avoid mutual interference of the light emission of the two filaments largely.
  • the side facing away from the axial coil side of the shading device is advantageously provided with one or more obliquely to the lamp vessel axis extending humps to ensure a reliable weld between the shading device and the power supply wire carrying them.
  • the incandescent lamp according to the invention has a glassy, substantially axially symmetrical lamp vessel 1, which is closed gas-tight by means of a pinch seal 1a.
  • the dome of the lamp vessel 1 is provided with an opaque coating 1b.
  • the pinch seal 1a is fixed in the lamp cap 2 provided with three electrical terminals 3.
  • an axially aligned with respect to the lamp vessel axis first filament 4 and a transversely aligned to the lamp vessel axis second filament 5 are arranged.
  • the first filament 4 is partially surrounded by a shading device 6, which is also referred to below as Abblendkappe 6. It is used to generate the low beam or the daytime running light in a motor vehicle, while the high beam is generated by means of the second filament 5.
  • the lamp is operated in a horizontal position, that is to say with a horizontally extending lamp vessel axis, such that the dimming cap 6 is arranged below the first filament 4.
  • the frame for holding and for electrical contacting of the two filaments 4, 5 consists of the shield 6 and three power supply wires 7, 8 and 9 and a quartz glass bar 10, in which the power supply wires 7 to 9 are melted.
  • the power supply wires 7 to 9 are through the pinch seal 1a and each electrically connected to an electrical terminal 3 of the lamp.
  • the three power supply wires 7 to 9 are fixed by the quartz glass bar 10 in a common plane perpendicular to the longitudinal axis of the second filament 5.
  • the first power supply wire 7 has an end 7a angled from the common plane of the power supply wires 7 to 9, which is welded to one end of the second filament 5.
  • the other end of the second filament 5 is welded to the second power supply wire 8, which also serves to hold the Abblendkappe 6.
  • the welded connection takes place for example by means of a laser or a resistance welding.
  • the ends of the incandescent filaments 4, 5 made of tungsten are each covered with a molybdenum ribbon in order to improve the weldability with the molybdenum current leads 7, 8, 9 or the molybdenum cap 6.
  • the second power supply wire 8 has a substantially trapezoidal-shaped portion 8a, which leads past the second filament 5, so that the light beams emitted by the second filament 5 perpendicular to its helical axis are not obstructed by this power supply wire 8.
  • the obliquely to the lamp vessel axis extending end 8b of the power supply wire 8 is connected to the side facing away from the first filament 4 lower side of the Abblendkappe 6 by means of a projection welding.
  • the underside of the anti-dazzle device 6 has two projections 6a arranged obliquely to the lamp axis.
  • the third power supply wire 9 is rectilinear and substantially parallel to the lamp vessel axis.
  • the top of the anti-dazzle device 6 is provided with a survey 6b, with which this filament end is connected by a projection welding.
  • FIG. 5 shows details of the rack structure according to the second embodiment of the invention.
  • This embodiment differs from the first embodiment described above only by the design of the socket-close End of the transversely oriented filament connected third power supply wire.
  • the same reference numerals are used in Figure 5 for identical parts as in Figures 1 to 4, which illustrate the first embodiment of the invention.
  • the third power supply wire 9 also has a substantially trapezoidal shaped portion 9a, which is guided past the second incandescent filament 5 such that the light rays emitted by this incandescent filament 5 perpendicular to its longitudinal axis are not shaded by this power supply wire 9.
  • the second embodiment is consistent with the first.
  • the invention is not limited to the embodiments explained in more detail above.
  • a hard glass bar can be used.
  • As a starting point for the production of the frame can also serve a metal bridge, the webs are severed for electrical insulation of the power supply wires later.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Claims (3)

  1. Lampe à incandescence pour projecteur de véhicule automobile comprenant
    - une enceinte (1) de lampe sensiblement à symétrie axiale;
    - un premier filament (4) incandescent dirigé axialement dans l'enceinte (1) de lampe ;
    - un deuxième filament (5) incandescent dirigé transversalement dans l'enceinte (1) de lampe ;
    - une monture de maintien et de mise en contact électrique des filaments (4, 5) incandescents, qui a un dispositif (6) d'offuscation du premier filament (4) incandescent et trois fils (7, 8, 9) d' entrée de courant;
    caractérisée en ce que
    - les trois fils (7, 8, 9) d' entrée de courant sont disposés dans un plan commun perpendiculairement à l'axe longitudinal du deuxième filament (5) incandescent ;
    - au moins un fil (8) d'entrée de courant a un tronçon (8a) qui sort du plan commun et qui passe devant le deuxième filament (5) incandescent de façon qu'il (8a) ne soit pas touché par des faisceaux lumineux que le deuxième filament (5) incandescent émet perpendiculairement à sa direction longitudinale, dans lequel
    - une extrémité du deuxième filament (5) incandescent est reliée au tronçon (8a) sortant du plan commun et passant devant le deuxième filament (5) incandescent, et dans lequel
    - l'extrémité (8b) du tronçon (8a) sortant du plan commun et passant devant le deuxième filament (5) incandescent est inclinée par rapport à l'axe de l'enceinte de la lampe et est reliée au côté du dispositif (6) d'occultation, qui est éloigné du premier filament (4) incandescent.
  2. Lampe à incandescence suivant la revendication 1, caractérisée en ce que le tronçon (8a) sortant du plan commun et passant devant le deuxième filament (5) incandescent est sensiblement en forme de trapèze.
  3. Lampe à incandescence suivant la revendication 1, caractérisée en ce que le dispositif (6) d'offuscation a du côté tourné vers le premier filament (4) incandescent une surélévation (6b) qui est reliée à une extrémité du premier filament (4) incandescent.
EP02018370A 2001-09-14 2002-08-14 Lampe à incandescence pour projecteur de véhicule automobile Expired - Lifetime EP1294013B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10145427A DE10145427A1 (de) 2001-09-14 2001-09-14 Glühlampe für Kraftfahrzeugscheinwerfer
DE10145427 2001-09-14

Publications (3)

Publication Number Publication Date
EP1294013A2 EP1294013A2 (fr) 2003-03-19
EP1294013A3 EP1294013A3 (fr) 2006-05-03
EP1294013B1 true EP1294013B1 (fr) 2008-01-02

Family

ID=7699088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02018370A Expired - Lifetime EP1294013B1 (fr) 2001-09-14 2002-08-14 Lampe à incandescence pour projecteur de véhicule automobile

Country Status (8)

Country Link
US (1) US6709130B2 (fr)
EP (1) EP1294013B1 (fr)
JP (1) JP2003132855A (fr)
KR (1) KR20030023563A (fr)
AT (1) ATE382950T1 (fr)
DE (2) DE10145427A1 (fr)
ES (1) ES2295269T3 (fr)
HU (1) HUP0202976A3 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10215397A1 (de) * 2002-04-08 2003-10-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Glühlampe für Kraftfahrzeugscheinwerfer
DE10219729A1 (de) * 2002-05-02 2003-11-13 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Glühlampe für Kraftfahrzeugscheinwerfer
DE10306178A1 (de) * 2003-02-13 2004-08-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Glühlampe für Fahrzeugscheinwerfer
EP1560258A3 (fr) * 2003-12-12 2008-01-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence pour phare de véhicule
DE102004004017A1 (de) * 2004-01-22 2005-08-25 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Glühlampe
DE102004041113A1 (de) * 2004-08-24 2006-03-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Glühlampe
DE102004053644A1 (de) * 2004-11-03 2006-05-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Fahrzeugscheinwerferlampe
DE102006060771A1 (de) * 2006-12-21 2008-06-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe mit verbesserter Wendelendengeometrie
DE102007048387A1 (de) 2007-10-09 2009-04-16 Osram Gesellschaft mit beschränkter Haftung Lampe, insbesondere Fahrzeuglampe
US7722210B2 (en) * 2008-07-02 2010-05-25 Osram Sylvania Inc. Automotive lamp and reflector for low beam and advanced forward lighting system
JP6133065B2 (ja) * 2013-01-24 2017-05-24 スタンレー電気株式会社 ヘッドランプ用ハロゲン電球
CN105164786B (zh) * 2013-05-07 2017-07-25 皇家飞利浦有限公司 带有隔板的汽车前照明灯
DE202015103408U1 (de) * 2015-06-29 2015-07-09 Koninklijke Philips N.V. Abblendkappe für Zweifaden-Glühlampe
TWI769583B (zh) * 2019-11-15 2022-07-01 日商日本製鐵股份有限公司 定子鐵芯、旋轉電機、定子鐵芯之設計方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE393499C (de) * 1922-01-26 1924-04-11 Patra Patent Treuhand Projektionsgluehlampe
DE1597920A1 (de) * 1967-09-30 1970-08-27 Bosch Gmbh Robert Kraftfahrzeugscheinwerfer
US3858086A (en) * 1973-10-29 1974-12-31 Gte Sylvania Inc Extended life, double coil incandescent lamp
DE3034595A1 (de) * 1980-09-13 1982-04-29 Philips Patentverwaltung Gmbh, 2000 Hamburg Elektrische gluehlampe mit wenigstens einem waagerechten gluehkoerper
US4480296A (en) * 1981-12-28 1984-10-30 Gte Products Corporation Two-filament lamp for automobile headlight
DE19544012A1 (de) * 1995-11-27 1997-05-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe mit Abblendkappe und Verfahren zur Herstellung einer derartigen Lampe sowie Abblendkappe für eine elektrische Glühlampe
DE19600889A1 (de) * 1996-01-12 1997-07-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe
JPH09237504A (ja) * 1996-02-23 1997-09-09 Patent Treuhand Ges Elektr Gluehlamp Mbh 下向き及び上向きライト用自動車前照灯
FR2822113B1 (fr) * 2001-03-14 2003-05-02 Valeo Vision Agencement d'un dispositif d'eclairage dans un vehicule automobile

Also Published As

Publication number Publication date
JP2003132855A (ja) 2003-05-09
HU0202976D0 (fr) 2002-10-28
ES2295269T3 (es) 2008-04-16
KR20030023563A (ko) 2003-03-19
EP1294013A3 (fr) 2006-05-03
DE50211446D1 (de) 2008-02-14
ATE382950T1 (de) 2008-01-15
US20030053309A1 (en) 2003-03-20
DE10145427A1 (de) 2003-04-03
EP1294013A2 (fr) 2003-03-19
HUP0202976A2 (en) 2003-05-28
US6709130B2 (en) 2004-03-23
HUP0202976A3 (en) 2007-07-30

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