EP1564789B1 - Lampe électrique à incandescence - Google Patents

Lampe électrique à incandescence Download PDF

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Publication number
EP1564789B1
EP1564789B1 EP04030342A EP04030342A EP1564789B1 EP 1564789 B1 EP1564789 B1 EP 1564789B1 EP 04030342 A EP04030342 A EP 04030342A EP 04030342 A EP04030342 A EP 04030342A EP 1564789 B1 EP1564789 B1 EP 1564789B1
Authority
EP
European Patent Office
Prior art keywords
filament
power supply
incandescent
incandescent lamp
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.)
Not-in-force
Application number
EP04030342A
Other languages
German (de)
English (en)
Other versions
EP1564789A3 (fr
EP1564789A2 (fr
Inventor
Christian Seichter
Klaus Wittmann
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 EP1564789A2 publication Critical patent/EP1564789A2/fr
Publication of EP1564789A3 publication Critical patent/EP1564789A3/fr
Application granted granted Critical
Publication of EP1564789B1 publication Critical patent/EP1564789B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/40—Leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body

Definitions

  • the invention relates to an electric incandescent lamp according to the preamble of patent claim 1.
  • Such a light bulb is in the Laid-open specification DE 101 45 427 Al revealed.
  • This document describes a halogen incandescent lamp for a vehicle headlamp, which has two enclosed in a lamp vessel incandescent filaments for generating the low beam or high beam.
  • the principal helix used to generate the high beam is oriented transversely to the lamp axis and its coil outlets, which are surrounded by a molybdenum foil, are each welded to a power supply wire.
  • the auxiliary spiral serving to produce the low beam is aligned axially in the lamp vessel and has a coil outlet running transversely to its winding axis and covered with a molybdenum foil, which is welded to the end of a power supply wire.
  • the other spiral outlet of this filament is welded to a made of a molybdenum shield.
  • a disadvantage of the helical suspension of the secondary helix described above is that inaccuracies in the winding of the filament can lead to mechanical stresses in the filament and even to the torsion of the filament. For example, if a quarter turn too much or too little generated in the winding process of the auxiliary spiral, so at least one of the spiral outlets of the secondary spiral points in the wrong direction and can not be welded without deformation of the filament or the Wendelabganges with the power supply.
  • an attachment of the filament to the power supply without causing mechanical stresses in the filament to be made possible.
  • the electric incandescent lamp according to the invention has at least one arranged within a lamp vessel incandescent and power supply for this filament, wherein at least one of the power supply has an angled end which is connected to a transverse to the winding axis of the at least one filament helical departure of at least one filament and wherein this angled End and the aforementioned Wendelabgang in a plane transverse to the winding axis of the at least one filament are arranged.
  • the connection point between the filament outlet and the angled end of the current supply migrates in the direction of the end face of the angled end, if the other filament exit of the filament is considered to be spatially fixed. Accordingly, the junction wanders between the helical departure and the angled end of the power supply on the angled end in the opposite direction when the filament has too much of a fraction of a turn. Therefore, the coil suspension according to the invention allows in the above cases, a reliable fixation of the filament to their power supply, without causing mechanical stresses in the filament.
  • the length of the angled end of the power supply is preferably a value in the range of about 1 mm to 5 mm.
  • all manufacturing tolerances which normally occur during the winding process of the incandescent filament can be taken into account.
  • the angled end of the power supply and the associated Wendelabgang the at least one filament are preferably arranged in a plane perpendicular to the winding axis of the aforementioned filament. As a result, kinks or bending points in the spiral outlet can be avoided.
  • the power supply equipped with the aforementioned angled end is preferably designed as a wire for manufacturing reasons.
  • the angled end of the power supply may be formed flattened to allow a good weld with the helical departure of the at least one filament.
  • the abovementioned helical departure can furthermore be enveloped by a molybdenum foil in order to ensure a good welded connection between the incandescent filament and the current feed, which is preferably made of molybdenum.
  • This incandescent lamp is a so-called single-filament halogen incandescent lamp, which is equipped with a filament and is provided for a motor vehicle headlight.
  • This halogen incandescent lamp has a glass lamp vessel 60, which is sealed by means of a squeezing foot 61. The squeezing foot 61 is fixed in a base 62.
  • an incandescent filament 63 made of tungsten wire is arranged and aligned parallel to the lamp vessel axis.
  • the incandescent filament 63 has two spiral outlets 631, 632 running perpendicular to its winding axis, which are each welded to a power supply wire 64, 65 made of molybdenum.
  • the power supply wires 64, 65 are led out of the lamp vessel 60 via the squeezing foot 61 and are each electrically connected to an electrical connection 66 or 67 of the halogen incandescent lamp.
  • the FIG. 1 shows details of the coil suspension of the filament 63 of FIG FIG. 6 pictured halogen bulb.
  • the first filament outlet 631 of the incandescent filament 63 is wrapped with a molybdenum foil 633 and welded to the power supply wire 64.
  • the second filament outlet 632 of the incandescent filament 63 is likewise enveloped with a molybdenum foil 634 and welded to the angled end 651 of the power supply wire 65.
  • the angled end 651 of the power supply wire 65 and the second filament outlet 632 of the filament 63 are arranged in a common plane perpendicular to the winding axis of the filament 63.
  • FIGS. 2 to 4 show different views of a coil suspension according to the invention for a so-called two-filament halogen incandescent lamp, which is equipped with two filaments and is provided for a motor vehicle headlight.
  • FIG. 5 is such a halogen incandescent lamp shown schematically.
  • This halogen incandescent lamp has a substantially cylindrical, glassy lamp vessel 1, which is closed in a gastight manner by means of a crimping foot 1a.
  • the dome of the lamp vessel 1 is provided with an opaque coating 1b.
  • the presser foot 1a is fixed in the base 2 equipped with three electrical terminals 3.
  • the auxiliary spiral 4 is partially surrounded by a shading device 6, which is referred to below the dimming cap 6. It is used to generate the low beam or the daytime running light in a motor vehicle, while the main coil 5 is used to generate the high beam.
  • the helical suspension for the two filament 4, 5 consists of the Abblendkappe 6 and three power supply wires 7, 8 and 9 and from the quartz glass bar 10, in which the power supply wires 7, 8 and 9 are melted.
  • These power supply wires 7 to 9 are passed through the pinch 1a and each electrically connected to an electrical terminal 3 of the halogen incandescent lamp.
  • the three power supply wires 7 to 9 are fixed by the quartz glass bar 10 in a common plane perpendicular to the winding axis of the main coil 5.
  • FIGS. 2 to 4 Details of the coil suspension in FIG. 5 Illustrated halogen incandescent lamp according to the second embodiment of the invention are in the FIGS. 2 to 4 shown.
  • the first, wound with a molybdenum foil 510 Wendelabgang 51 of the main coil 5 is welded to an angled end of the first power supply wire 7.
  • the other, wound with a molybdenum foil 520 Wendelabgang 52 of the main coil 5 is welded to the second power supply wire 8, on which the Abblendkappe 6 is fixed by a welded connection.
  • the first, coiled with a molybdenum foil 410 Wendelabgang 41 of the auxiliary coil 4 extends transversely, substantially perpendicular to the winding axis of the auxiliary coil 4 and is with welded to the approximately right angle angled end 91 of the third power supply wire 9.
  • the angled end 91 of the third power supply wire 9 and the first filament outlet 41 of the auxiliary filament 4 are arranged in a common plane perpendicular to the winding axis of the auxiliary filament 4.
  • the angled end 91 has a length of about 3 mm.
  • the second coil end 42 enveloped with a molybdenum foil 420 is welded to a tab 601 integrally formed on the dimming cap 6.
  • any manufacturing tolerances during its winding process can be taken into account when fixing the auxiliary filament 4, as was described above in the text when assembling the auxiliary filament 4, first its second filament outlet 42 is welded to the tab 601 and then its first filament outlet 41 with the angled one Welded at the end of 91. The position of the weld of the helical departure 41 on the angled end 91 is then influenced by the accuracy of the aforementioned winding process.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Resistance Heating (AREA)
  • Wire Processing (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Surgical Instruments (AREA)
  • Cable Accessories (AREA)
  • Discharge Lamp (AREA)

Claims (4)

  1. Lampe électrique à incandescence comprenant au moins un filament (63) incandescent disposé à l'intérieur d'une enceinte (60) de lampe et des entrées (64, 65) de courant pour le filament (63) incandescent, au moins l'une des entrées (65) de courant ayant une extrémité (651) coudée qui est reliée à une sortie (632) du au moins un filament incandescent, s'étendant transversalement à l'axe d'enroulement du au moins un filament (63) incandescent,
    caractérisée en ce que l'extrémité (651) coudée et la sortie (632) du au moins un filament (63) incandescent sont disposées dans un plan transversalement à l'axe d'enroulement du au moins filament (63) incandescent.
  2. Lampe électrique à incandescence suivant la revendication 1, caractérisée en ce que le plan est sensiblement perpendiculaire à l'axe d'enroulement du au moins un filament (63) incandescent.
  3. Lampe électrique à incandescence suivant la revendication 1, caractérisée en ce que l'entrée (65) de courant est constituée sous la forme d'un fil métallique.
  4. Lampe électrique à incandescence suivant l'une ou plusieurs des revendications 1 à 3, caractérisée en ce que la lampe électrique à incandescence est une lampe de phare de véhicule automobile.
EP04030342A 2004-01-22 2004-12-21 Lampe électrique à incandescence Not-in-force EP1564789B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004004017A DE102004004017A1 (de) 2004-01-22 2004-01-22 Elektrische Glühlampe
DE102004004017 2004-01-22

Publications (3)

Publication Number Publication Date
EP1564789A2 EP1564789A2 (fr) 2005-08-17
EP1564789A3 EP1564789A3 (fr) 2008-01-23
EP1564789B1 true EP1564789B1 (fr) 2008-11-05

Family

ID=34683964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04030342A Not-in-force EP1564789B1 (fr) 2004-01-22 2004-12-21 Lampe électrique à incandescence

Country Status (9)

Country Link
US (1) US20050162091A1 (fr)
EP (1) EP1564789B1 (fr)
JP (1) JP4910108B2 (fr)
KR (1) KR101119388B1 (fr)
CN (1) CN100555560C (fr)
AT (1) ATE413689T1 (fr)
CA (1) CA2493844A1 (fr)
DE (2) DE102004004017A1 (fr)
ES (1) ES2314333T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8212476B2 (en) 2006-12-19 2012-07-03 Osram Ag Welding aid for a spiral-wound filament

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201508829U (zh) * 2009-08-27 2010-06-16 杨范文 一种灯丝
KR200452390Y1 (ko) * 2010-08-13 2011-02-28 에스에스라이팅 주식회사 진동 내구성이 강화된 자동차용 할로겐 전조등

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310702A (en) * 1965-06-14 1967-03-21 Robert N Falge Vehicle headlamp with improved filament mounting structure
US3858086A (en) * 1973-10-29 1974-12-31 Gte Sylvania Inc Extended life, double coil incandescent lamp
US4994707A (en) * 1988-09-22 1991-02-19 Patent-Treuhand Gesellschaft fur elektrische Glum.b.H. Vibration-resistant single-ended halogen incandescent lamp
US5239231A (en) * 1991-03-05 1993-08-24 Cooper Industries, Inc. Filament attachment method for dual filament halogen lamp having a common ground connection
JPH0869779A (ja) * 1994-08-31 1996-03-12 Toshiba Lighting & Technol Corp 白熱電球およびこれを用いた反射形照明装置ならびに車両用前照灯
JPH08255596A (ja) * 1995-03-20 1996-10-01 Matsushita Electron Corp ハロゲン電球
JP3532011B2 (ja) * 1995-03-31 2004-05-31 ハリソン東芝ライティング株式会社 電球、車両用前照灯および車両
JPH08306343A (ja) * 1995-04-28 1996-11-22 Koito Mfg Co Ltd 白熱電球
JP3771322B2 (ja) * 1996-06-04 2006-04-26 本田技研工業株式会社 自動車用電球
DE19707245A1 (de) * 1997-02-25 1998-08-27 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur Herstellung einer elektrischen Glühlampe
EP1016125B1 (fr) * 1997-04-28 2009-08-26 Osram Sylvania Inc. Lampe pour vehicule a filament ameliore et a configurations de support de filament ameliorees
US6630770B1 (en) * 1998-11-20 2003-10-07 Ichikoh Industries, Ltd. Automotive headlamp with support wire positioning
DE10145427A1 (de) * 2001-09-14 2003-04-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Glühlampe für Kraftfahrzeugscheinwerfer
US6856090B2 (en) * 2001-10-23 2005-02-15 Federal-Mogul Worldwide, Inc. Incandescent halogen lamp having flattened filament support leads

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8212476B2 (en) 2006-12-19 2012-07-03 Osram Ag Welding aid for a spiral-wound filament

Also Published As

Publication number Publication date
CN100555560C (zh) 2009-10-28
DE102004004017A1 (de) 2005-08-25
ATE413689T1 (de) 2008-11-15
EP1564789A3 (fr) 2008-01-23
KR101119388B1 (ko) 2012-03-06
KR20050076740A (ko) 2005-07-27
JP4910108B2 (ja) 2012-04-04
US20050162091A1 (en) 2005-07-28
EP1564789A2 (fr) 2005-08-17
CN1645558A (zh) 2005-07-27
CA2493844A1 (fr) 2005-07-22
JP2005209655A (ja) 2005-08-04
ES2314333T3 (es) 2009-03-16
DE502004008402D1 (de) 2008-12-18

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