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EP1564789B1 - Electric incandescent lamp - Google Patents

Electric incandescent lamp 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
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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.)
Expired - Lifetime
Application number
EP04030342A
Other languages
German (de)
French (fr)
Other versions
EP1564789A3 (en
EP1564789A2 (en
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.)
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Publication date
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Publication of EP1564789A2 publication Critical patent/EP1564789A2/en
Publication of EP1564789A3 publication Critical patent/EP1564789A3/en
Application granted granted Critical
Publication of EP1564789B1 publication Critical patent/EP1564789B1/en
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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.

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

Abstract

A bent-back end and an outgoing filament line of incandescent filaments (4,5) are arranged on a plane transverse to the winding axes of the incandescent filaments.

Description

Die Erfindung betrifft eine elektrische Glühlampe gemäß des Oberbegriffs des Patentanspruchs 1.The invention relates to an electric incandescent lamp according to the preamble of patent claim 1.

I. Stand der Technik I. State of the art

Eine derartige Glühlampe ist in der Offenlegungsschrift DE 101 45 427 Al offenbart. Diese Schrift beschreibt eine Halogenglühlampe für einen Fahrzeugscheinwerfer, die zwei in einem Lampengefäß eingeschlossene Glühwendeln zur Erzeugung des Abblendlichts beziehungsweise Fernlichts aufweist. Die zur Erzeugung des Fernlichts dienende Hauptwendel ist transversal zur Lampenachse ausgerichtet und ihre von einer Molybdänfolie umhüllten Wendelabgänge sind jeweils mit einem Stromzuführungsdraht verschweißt. Die zur Erzeugung des Abblendlichts dienende Nebenwendel ist axial in dem Lampengefäß ausgerichtet und besitzt einen quer zu ihrer Wickelachse verlaufenden, mit einer Molybdänfolie umhüllten Wendelabgang, der mit dem Ende eines Stromzuführungsdrahtes verschweißt ist. Der andere Wendelabgang dieser Glühwendel ist mit einer aus einem Molybdänblech gefertigten Abblendkappe verschweißt.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.

Ein Nachteil der oben beschriebenen Wendelaufhängung der Nebenwendel besteht darin, dass Ungenauigkeiten beim Wickeln der Glühwendel zu mechanischen Spannungen in der Glühwendel und sogar zur Torsion der Glühwendel führen können. Wird beispielsweise bei dem Wicklungsprozess der Nebenwendel eine Viertelwindung zuviel oder zuwenig erzeugt, so zeigt mindestens einer der Wendelabgänge der Nebenwendel in die falsche Richtung und kann dann nicht ohne Deformation der Glühwendel oder des Wendelabganges mit der Stromzuführung verschweißt werden.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.

Eine weitere Glühlampe mit einem abgewinkelten Stromzuführungsende wird in der Offenlegungsschrift US 3310702 A1 offenbart.Another bulb with an angled power supply end is in the Laid-open publication US 3310702 A1 disclosed.

II. Darstellung der Erfindung II. Presentation of the invention

Es ist die Aufgabe der Erfindung, eine elektrische Glühlampe mit einer verbesserten Wendelaufhängung bereitzustellen. Insbesondere soll trotz etwaiger Ungenauigkeiten bei der Wicklung der Glühwendel eine Befestigung der Glühwendel an den Stromzuführungen ohne das Verursachen von mechanischen Spannungen in der Glühwendel ermöglicht werden.It is the object of the invention to provide an electric incandescent lamp with an improved helical suspension. In particular, in spite of any inaccuracies in the winding of the filament, an attachment of the filament to the power supply without causing mechanical stresses in the filament to be made possible.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausführungen der Erfindung sind in den abhängigen Patentansprüchen beschrieben.This object is achieved by the features of claim 1. Particularly advantageous embodiments of the invention are described in the dependent claims.

Die erfindungsgemäße elektrische Glühlampe besitzt mindestens eine innerhalb eines Lampengefäßes angeordnete Glühwendel und Stromzuführungen für diese Glühwendel, wobei mindestens eine der Stromzuführungen ein abgewinkeltes Ende aufweist, das mit einem quer zur Wickelachse der mindestens einen Glühwendel verlaufenden Wendelabgang der mindestens einen Glühwendel verbunden ist und wobei dieses abgewinkelte Ende und der vorgenannte Wendelabgang in einer Ebene quer zur Wickelachse der mindestens einen Glühwendel angeordnet sind.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.

Dadurch ist gewährleistet, dass der mit dem abgewinkelten Ende der Stromzuführung zu verbindende Wendelabgang der mindestens einen Glühwendel auch im Fall von Ungenauigkeiten bei dem Wickeln der Glühwendel mit der Stromzuführung verbindbar ist, ohne dass in der Glühwendel mechanische Spannungen verursacht werden. Besitzt die Glühwendel aufgrund von Fertigungstoleranzen beim Wicklungsprozess den Bruchteil einer Windung zuviel oder zuwenig, so ändert sich der Winkel zwischen dem Wendelabgang der Glühwendel und dem abgewinkelten Ende der Stromzuführung, wodurch sich die Verbindungsstelle zwischen dem Wendelabgang und der Stromzuführung auf dem abgewinkelten Ende der Stromzuführung entsprechend verschiebt. Weist beispielsweise die in Figur 1 abgebildete Glühwendel den Bruchteil einer Windung zuwenig auf, so wandert die Verbindungsstelle zwischen dem Wendelabgang und dem abgewinkelten Ende der Stromzuführung in Richtung der Stirnseite des abgewinkelten Endes, wenn der andere Wendelabgang der Glühwendel als räumlich fixiert angesehen wird. Entsprechend wandert die Verbindungsstelle zwischen dem Wendelabgang und dem abgewinkelten Ende der Stromzuführung auf dem abgewinkelten Ende in die entgegengesetzte Richtung, wenn die Glühwendel den Bruchteil einer Windung zuviel besitzt. Die erfindungsgemäße Wendelaufhängung ermöglicht daher in den obengenannten Fällen eine zuverlässige Fixierung der Glühwendel an ihren Stromzuführungen, ohne mechanische Spannungen in der Glühwendel zu hervorzurufen.This ensures that the filament outlet of the at least one incandescent filament to be connected to the angled end of the power supply can be connected to the power supply even in the case of inaccuracies in the winding of the incandescent filament without causing mechanical stresses in the incandescent filament. Does the filament due to manufacturing tolerances in the winding process, the fraction of a turn too much or too little, so the angle between the filament exit of the filament and the angled end of the power supply, thereby changing the connection point between the Wendelabgang and the power supply on the angled end of the power supply accordingly shifts. For example, the in FIG. 1 If the incandescent filament depicted does not have enough of a fraction of a turn, 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.

Die Länge des abgewinkelten Endes der Stromzuführung beträgt vorzugsweise einen Wert im Bereich von ca. 1 mm bis 5 mm. Dadurch können alle beim Wicklungsprozess der Glühwendel üblicherweise vorkommenden Fertigungstoleranzen berücksichtigt werden. Gemäß der bevorzugten Ausführungsbeispiele der Erfindung sind das abgewinkelte Ende der Stromzuführung und der damit verbundene Wendelabgang der mindestens einen Glühwendel vorzugsweise in einer Ebene senkrecht zur Wickelachse der vorgenannten Glühwendel angeordnet. Dadurch können Knicke oder Biegestellen in dem Wendelabgang vermieden werden.The length of the angled end of the power supply is preferably a value in the range of about 1 mm to 5 mm. As a result, all manufacturing tolerances which normally occur during the winding process of the incandescent filament can be taken into account. According to the preferred embodiments of the invention, 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.

Die mit dem vorgenannten abgewinkelten Ende ausgestattete Stromzuführung ist aus fertigungstechnischen Gründen vorzugsweise als Draht ausgebildet. Das abgewinkelte Ende der Stromzuführung kann abgeflacht ausgebildet sein, um eine gute Schweißverbindung mit dem Wendelabgang der mindestens einen Glühwendel zu ermöglichen. Der vorgenannte Wendelabgang kann ferner von einer Molybdänfolie umhüllt sein, um eine gute Schweißverbindung zwischen der Glühwendel und der vorzugsweise aus Molybdän bestehenden Stromzuführung zu gewährleisten.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.

III. Beschreibung der bevorzugten Ausführungsbeispiele III. Description of the preferred embodiments

Nachstehend wird die Erfindung anhand von zwei bevorzugten Ausführungsbeispielen näher erläutert. Es zeigen:

Figur 1
Eine Seitenansicht einer Wendelaufhängung für eine elektrische Glühlampe gemäß des ersten Ausführungsbeispiels der Erfindung
Figur 2
Eine erste Seitenansicht einer Wendelaufhängung für eine elektrische Glühlampe gemäß des zweiten Ausführungsbeispiels der Erfindung
Figur 3
Eine zweite Seitenansicht der in Figur 2 abgebildeten Wendelaufhängung in einer um 90 Grad gedrehten Ansicht
Figur 4
Eine Draufsicht auf die in Figur 2 und 3 abgebildeten Wendelaufhängung
Figur 5
Eine Seitenansicht einer Halogenglühlampe, die mit der in den Figuren 2 bis 3 abgebildeten Wendelaufhängung ausgestattet werden kann
Figur 6
Eine Seitenansicht einer Halogenglühlampe gemäß des ersten Ausführungsbeispiels der Erfindung, die mit der in Figur 1 abgebildeten Wendelaufhängung ausgestattet ist
The invention will be explained in more detail below with reference to two preferred embodiments. Show it:
FIG. 1
A side view of a coil suspension for an electric light bulb according to the first embodiment of the invention
FIG. 2
A first side view of a coil suspension for an electric incandescent lamp according to the second embodiment of the invention
FIG. 3
A second side view of the FIG. 2 pictured coil hanger in a 90 degree rotated view
FIG. 4
A top view of the in FIG. 2 and 3 illustrated coil suspension
FIG. 5
A side view of a halogen bulb, with the in the FIGS. 2 to 3 illustrated coil suspension can be equipped
FIG. 6
A side view of a halogen incandescent lamp according to the first embodiment of the invention, with the in FIG. 1 featured coil hanger is equipped

In der Figur 6 ist eine elektrische Glühlampe gemäß des ersten Ausführungsbeispiels der Erfindung schematisch dargestellt. Bei dieser Glühlampe handelt es sich um eine sogenannte Einfaden-Halogenglühlampe, die mit einer Glühwendel ausgestattet ist und für einen Kraftfahrzeugscheinwerfer vorgesehen ist. Diese Halogenglühlampe besitzt ein gläsernes Lampengefäß 60, das mittels eines Quetschfußes 61 abgedichtet ist. Der Quetschfuß 61 ist in einem Sockel 62 fixiert. Im Innenraum des im wesentlichen zylindrischen Lampengefäß 60 ist eine aus Wolframdraht gefertigte Glühwendel 63 angeordnet und parallel zur Lampengefäßachse ausgerichtet. Die Glühwendel 63 weist zwei senkrecht zu ihrer Wickelachse verlaufende Wendelabgänge 631, 632 auf, die jeweils mit einem aus Molybdän bestehenden Stromzuführungsdraht 64, 65 verschweißt sind. Die Stromzuführungsdrähte 64, 65 sind über den Quetschfuß 61 aus dem Lampengefäß 60 herausgeführt und jeweils mit einem elektrischen Anschluss 66 beziehungsweise 67 der Halogenglühlampe elektrisch leitend verbunden.In the FIG. 6 is an electric light bulb according to the first embodiment of the invention shown schematically. 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. In the interior of the substantially cylindrical lamp vessel 60, 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.

Die Figur 1 zeigt Details der Wendelaufhängung der Glühwendel 63 der in Figur 6 abgebildeten Halogenglühlampe. Der erste Wendelabgang 631 der Glühwendel 63 ist mit einer Molybdänfolie 633 umwickelt und mit dem Stromzuführungsdraht 64 verschweißt. Der zweite Wendelabgang 632 der Glühwendel 63 ist ebenfalls mit einer Molybdänfolie 634 umhüllt und mit dem abgewinkelten Ende 651 des Stromzuführungsdrahtes 65 verschweißt. Das abgewinkelte Ende 651 des Stromzuführungsdrahtes 65 und der zweite Wendelabgang 632 der Glühwendel 63 sind in einer gemeinsamen Ebene senkrecht zur Wickelachse der Glühwendel 63 angeordnet.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.

Die Figuren 2 bis 4 zeigen unterschiedliche Ansichten einer erfindungsgemäßen Wendelaufhängung für eine sogenannte Zweifaden-Halogenglühlampe, die mit zwei Glühwendeln ausgestattet ist und für einen Kraftfahrzeugscheinwerfer vorgesehen ist. In der Figur 5 ist eine derartige Halogenglühlampe schematisch dargestellt. Diese Halogenglühlampe besitzt ein im wesentlichen zylindrisches, gläsernes Lampengefäß 1, das mittels eines Quetschfußes 1a gasdicht verschlossen ist. Die Kuppe des Lampengefäßes 1 ist mit einer lichtundurchlässigen Beschichtung 1b versehen. Der Quetschfuß 1a ist in dem Sockel 2 fixiert, der mit drei elektrischen Anschlüssen 3 ausgestattet ist. Innerhalb des Lampengefäßes 1 sind eine axial bezüglich der Lampengefäßachse ausgerichtete erste Glühwendel 4, die sogenannte Nebenwendel 4, und eine transversal zur Lampengefäßachse ausgerichtete zweite Glühwendel 5, die sogenannte Hauptwendel 5, angeordnet. Die Nebenwendel 4 ist teilweise von einer Abschattungsvorrichtung 6, die nachfolgend Abblendkappe 6 genannt wird, umgeben. Sie dient zur Erzeugung des Abblendlichts oder des Tagfahrlichts in einem Kraftfahrzeug, während die Hauptwendel 5 zur Erzeugung des Fernlichts dient. Die Wendelaufhängung für die beiden Glühwendel 4, 5 besteht aus der Abblendkappe 6 und drei Stromzuführungsdrähten 7, 8 und 9 sowie aus dem Quarzglasbalken 10, in dem die Stromzuführungsdrähte 7, 8 und 9 eingeschmolzen sind. Diese Stromzuführungsdrähte 7 bis 9 sind durch den Quetschfuß 1a hindurchgeführt und jeweils mit einem elektrischen Anschluss 3 der Halogenglühlampe elektrisch leitend verbunden. Die drei Stromzuführungsdrähte 7 bis 9 werden durch den Quarzglasbalken 10 in einer gemeinsamen Ebene senkrecht zur Wickelachse der Hauptwendel 5 fixiert.The 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. In the 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. Within the lamp vessel 1, an axially aligned with respect to the lamp vessel axis first filament 4, the so-called auxiliary filament 4, and a transverse to the lamp vessel axis aligned second filament 5, the so-called main coil 5, respectively. 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.

Details der Wendelaufhängung der in Figur 5 abgebildeten Halogenglühlampe gemäß des zweiten Ausführungsbeispiels der Erfindung sind in den Figuren 2 bis 4 dargestellt. Der erste, mit einer Molybdänfolie 510 umhüllte Wendelabgang 51 der Hauptwendel 5 ist mit einem abgewinkelten Ende des ersten Stromzuführungsdrahtes 7 verschweißt. Der andere, mit einer Molybdänfolie 520 umhüllte Wendelabgang 52 der Hauptwendel 5 ist mit dem zweiten Stromzuführungsdraht 8 verschweißt, an dem auch die Abblendkappe 6 durch eine Schweißverbindung fixiert ist. Der erste, mit einer Molybdänfolie 410 umhüllte Wendelabgang 41 der Nebenwendel 4 verläuft quer, im wesentlichen senkrecht, zur Wickelachse der Nebenwendel 4 und ist mit dem annähernd rechtwinklig abgewinkelten Ende 91 des dritten Stromzuführungsdrahtes 9 verschweißt. Das abgewinkelte Ende 91 des dritten Stromzuführungsdrahtes 9 und der erste Wendelabgang 41 der Nebenwendel 4 sind in einer gemeinsamen Ebene senkrecht zur Wickelachse der Nebenwendel 4 angeordnet. Das abgewinkelte Ende 91 besitzt eine Länge von ca. 3 mm. Der zweite, mit einer Molybdänfolie 420 umhüllte Wendelabgang 42 ist mit einer an der Abblendkappe 6 angeformten Lasche 601 verschweißt. Dadurch können beim Fixieren der Nebenwendel 4 etwaige Fertigungstoleranzen während ihres Wickelprozesses berücksichtigt werden, wie es bereits oben im Text beschrieben wurde, wenn zur Montage der Nebenwendel 4 zuerst ihr zweiter Wendelabgang 42 mit der Lasche 601 verschweißt wird und anschließend ihr erster Wendelabgang 41 mit dem abgewinkelten Ende 91 verschweißt wird. Die Position der Schweißstelle des Wendelabganges 41 auf dem abgewinkelten Ende 91 wird dann durch die Genauigkeit des vorgenannten Wickelprozesses beeinflusst.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. As a result, 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.

Claims (4)

  1. Electric incandescent lamp having at least one incandescent filament (63) arranged within a lamp vessel (60) and power supply lines (64, 65) for the incandescent filament (63), at least one of the power supply lines (65) having a bent-back end (651), which is connected to an outgoing filament line (632), which extends transversely to the winding axis of the at least one incandescent filament (63), of the at least one incandescent filament,
    characterized in that the bent-back end (651) and the outgoing filament line (632) of the at least one incandescent filament (63) are arranged on a plane transverse to the winding axis of the at least one incandescent filament (63).
  2. Electric incandescent lamp according to Claim 1, characterized in that the plane is arranged essentially perpendicular to the winding axis of the at least one incandescent filament (63).
  3. Electric incandescent lamp according to Claim 1, characterized in that the power supply line (65) is in the form of a wire.
  4. Electric incandescent lamp according to one or more of Claims 1 to 3, characterized in that the electric incandescent lamp is a vehicle headlight lamp.
EP04030342A 2004-01-22 2004-12-21 Electric incandescent lamp Expired - Lifetime EP1564789B1 (en)

Applications Claiming Priority (2)

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DE102004004017A DE102004004017A1 (en) 2004-01-22 2004-01-22 Electric lightbulb
DE102004004017 2004-01-22

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EP1564789A2 EP1564789A2 (en) 2005-08-17
EP1564789A3 EP1564789A3 (en) 2008-01-23
EP1564789B1 true EP1564789B1 (en) 2008-11-05

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EP04030342A Expired - Lifetime EP1564789B1 (en) 2004-01-22 2004-12-21 Electric incandescent lamp

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

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US8212476B2 (en) 2006-12-19 2012-07-03 Osram Ag Welding aid for a spiral-wound filament

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CN201508829U (en) * 2009-08-27 2010-06-16 杨范文 Filament
KR200452390Y1 (en) * 2010-08-13 2011-02-28 에스에스라이팅 주식회사 Halogen headlights for cars with increased vibration durability

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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 (en) * 1994-08-31 1996-03-12 Toshiba Lighting & Technol Corp Incandescent light bulb, reflective lighting device using the same, and vehicle headlight
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US8212476B2 (en) 2006-12-19 2012-07-03 Osram Ag Welding aid for a spiral-wound filament

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

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