EP1667203A2 - Electric incandescent lamp - Google Patents

Electric incandescent lamp Download PDF

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Publication number
EP1667203A2
EP1667203A2 EP05016087A EP05016087A EP1667203A2 EP 1667203 A2 EP1667203 A2 EP 1667203A2 EP 05016087 A EP05016087 A EP 05016087A EP 05016087 A EP05016087 A EP 05016087A EP 1667203 A2 EP1667203 A2 EP 1667203A2
Authority
EP
European Patent Office
Prior art keywords
power supply
strut
incandescent lamp
filament
socket
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.)
Withdrawn
Application number
EP05016087A
Other languages
German (de)
French (fr)
Other versions
EP1667203A3 (en
Inventor
Frank Auer
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 EP1667203A2 publication Critical patent/EP1667203A2/en
Publication of EP1667203A3 publication Critical patent/EP1667203A3/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • 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
    • H01K7/00—Lamps for purposes other than general lighting
    • H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector

Definitions

  • the invention relates to an electric incandescent lamp according to the preamble of patent claim 1.
  • Such an incandescent lamp is disclosed for example in the patent application DE 2105155.
  • This document describes a halogen incandescent lamp for projection purposes, the filament is connected to power supply lines, which are each surrounded by a support body. One end of this support body is embedded in each case in the sealed end of the lamp vessel.
  • the support bodies are formed as spirals. It has been found that with such support bodies sufficient vibration resistance for incandescent lamps, which are used in vehicle headlights, can be achieved.
  • the electric incandescent lamp according to the invention has an incandescent filament arranged within a light-transmitting lamp vessel and power supply lines for the incandescent filament, wherein at least one of the power supply lines is provided with at least one strut.
  • the at least one strut causes, in contrast to the trained as a helical support body according to the prior art, a stiffening of the power supply equipped with it. For example, curved or Angled power supply sections bridged by the at least one strut. This reduces the amplitude of the deflection of the filament from its equilibrium position and increases the vibration resistance of the incandescent lamp in the case of shocks.
  • incandescent lamps such as vehicle headlamps, which are equipped at one end with a base and in which the filament has a sockelnahen and a socket remote Wendelabgang
  • the socket remote filament outlet power supply is equipped with the at least one strut, as this power supply due its greater length has a lower vibration resistance.
  • the aforementioned power supply is equipped with a strut which is connected at at least three points with the socket remote power supply.
  • the at least one strut is connected to the at least one power supply at at least two points.
  • the at least one strut is preferably formed as a wire to keep the light shading caused by the strut within tolerable limits.
  • the light bulb according to the invention shown in FIG. 1 is a halogen incandescent lamp for a vehicle headlight, in particular an H7 lamp.
  • This lamp has a glassy, substantially cylindrical lamp vessel 1, which is provided at one end with a metallic base 2.
  • an axially aligned incandescent filament 3 is arranged, which are wrapped with a molybdenum tube 301, 302 spiral outlets 31, 32 are each welded to a power supply wire 4, 5.
  • the two power supply wires 4, 5 are each electrically connected to an electrical connection 6, 7 of the base 2.
  • the power supply wire 5 connected to the remote filament outlet 32 is provided with a strut 8 which is welded at three points to the power supply wire 5.
  • Both the strut 8 and the power supply wire 5 are formed as molybdenum wire with a thickness of 0.7 mm.
  • the strut 8 bridges a plurality of angled portions 51, 52, 53 of the power supply wire 5 and thereby causes a stiffening of the power supply wire 5.
  • the strut 8 has two right-angled ends, which are welded to the portion 51 and 53 of the power supply wire 5.
  • the strut 8 is also welded to the transition region between the sections 51 and 52 of the power supply wire 5.
  • the power supply wire 4 connected to the socket-like helical outlet 31 can also be provided with a strut which bridges the angled sections of the power supply wire 4.
  • the strut 8 and the power supply wires 4, 5 may also have a thickness less than 0.7 mm, for example, a thickness of only 0.645 millimeters possess.
  • the strut 8 may also have a different thickness than the power supply wire 5. For the thickness or the diameter of the strut 8 values in the range of 0.1 millimeters to 1.0 millimeters come into consideration.

Abstract

The electrical light bulb has an electrical filament [3] that connects with electrical leads [4,5] that are enclosed in a glass bulb. These are supported by a stiffening strip [8] which provides protection against vibration.

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 beispielsweise in der Auslegeschrift DE 2105 155 offenbart. Diese Schrift beschreibt eine Halogenglühlampe für Projektionszwecke, deren Glühwendel mit Stromzuführungen verbunden ist, die jeweils von einem Stützkörper umgeben sind. Ein Ende dieser Stützkörper ist jeweils in dem abgedichteten Ende des Lampengefäßes eingebettet. Die Stützkörper sind als Wendeln ausgebildet. Es hat sich gezeigt, dass mit derartigen Stützkörpern keine ausreichende Vibrationsfestigkeit für Glühlampen, die in Fahrzeugscheinwerfern verwendet werden, erzielbar ist.Such an incandescent lamp is disclosed for example in the patent application DE 2105155. This document describes a halogen incandescent lamp for projection purposes, the filament is connected to power supply lines, which are each surrounded by a support body. One end of this support body is embedded in each case in the sealed end of the lamp vessel. The support bodies are formed as spirals. It has been found that with such support bodies sufficient vibration resistance for incandescent lamps, which are used in vehicle headlights, can be achieved.

II. Darstellung der Erfindung II. Presentation of the invention

Es ist die Aufgabe eine elektrische Glühlampe mit erhöhter Vibrationsfestigkeit bereitzustellen.It is the task to provide an electric light bulb with increased vibration resistance.

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

Die erfindungsgemäße elektrische Glühlampe weist eine innerhalb eines lichtdurchlässigen Lampengefäßes angeordnete Glühwendel und Stromzuführungen für die Glühwendel auf, wobei mindestens eine der Stromzuführungen mit mindestens einer Strebe versehen ist. Die mindestens eine Strebe bewirkt, im Gegensatz zu dem als Wendel ausgebildeten Stützkörper gemäß des Standes der Technik, eine Versteifung der mit ihr ausgestatteten Stromzuführung. Beispielsweise werden gebogene oder abgewinkelte Stromzuführungsabschnitte von der mindestens einen Strebe überbrückt. Dadurch wird im Fall von Erschütterungen die Amplitude der Auslenkung der Glühwendel aus ihrer Gleichgewichtslage reduziert und die Vibrationsfestigkeit der Glühlampe erhöht.The electric incandescent lamp according to the invention has an incandescent filament arranged within a light-transmitting lamp vessel and power supply lines for the incandescent filament, wherein at least one of the power supply lines is provided with at least one strut. The at least one strut causes, in contrast to the trained as a helical support body according to the prior art, a stiffening of the power supply equipped with it. For example, curved or Angled power supply sections bridged by the at least one strut. This reduces the amplitude of the deflection of the filament from its equilibrium position and increases the vibration resistance of the incandescent lamp in the case of shocks.

Bei Glühlampen wie beispielsweise Fahrzeugscheinwerferlampen, die an einem Ende mit einem Sockel ausgestattet sind und bei denen die Glühwendel einen sockelnahen sowie einen sockelfernen Wendelabgang aufweist, ist vorteilhafter Weise zumindest die mit dem sockelfernen Wendelabgang verbundene Stromzuführung mit der mindestens einen Strebe ausgestattet, da diese Stromzuführung aufgrund ihrer größeren Länge eine geringere Vibrationsfestigkeit besitzt. Gemäß eines bevorzugten Ausführungsbeispiels der Erfindung ist die vorgenannte Stromzuführung mit einer Strebe ausgestattet, die an mindestens drei Punkten mit der sockelfernen Stromzuführung verbunden ist.In incandescent lamps such as vehicle headlamps, which are equipped at one end with a base and in which the filament has a sockelnahen and a socket remote Wendelabgang, advantageously at least connected to the socket remote filament outlet power supply is equipped with the at least one strut, as this power supply due its greater length has a lower vibration resistance. According to a preferred embodiment of the invention, the aforementioned power supply is equipped with a strut which is connected at at least three points with the socket remote power supply.

Um eine ausreichende Versteifung der mindestens einen Stromzuführung zu bewirken, ist die mindestens eine Strebe an wenigstens zwei Punkten mit der mindestens einen Stromzuführung verbunden. Die mindestens eine Strebe ist vorzugsweise als Draht ausgebildet, um die durch die Strebe verursachte Lichtabschattung in erträglichen Grenzen zu halten.In order to effect a sufficient stiffening of the at least one power supply, the at least one strut is connected to the at least one power supply at at least two points. The at least one strut is preferably formed as a wire to keep the light shading caused by the strut within tolerable limits.

III. Beschreibung des bevorzugten Ausführungsbeispiels III. Description of the Preferred Embodiment

Nachstehend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:

Figur 1
Eine Seitenansicht einer Glühlampen gemäß des bevorzugten Ausführungsbeispiels der Erfindung in schematischer Darstellung
Figur 2
Die Glühwendel der in Figur 1 abgebildeten Glühlampe mit den Stromzuführungen und der Strebe
The invention will be explained in more detail below with reference to a preferred embodiment. Show it:
FIG. 1
A side view of a light bulbs according to the preferred embodiment of the invention in a schematic representation
FIG. 2
The filament of the illustrated in Figure 1 incandescent lamp with the power supply lines and the strut

Bei der in Figur 1 abgebildeten erfindungsgemäßen Glühlampe handelt es sich um eine Halogenglühlampe für einen Fahrzeugscheinwerfer, insbesondere um eine H7-Lampe. Diese Lampe besitzt ein gläsernes, im wesentlichen zylindrisches Lampengefäß 1, das an einem Ende mit einem metallischen Sockel 2 versehen ist. Innerhalb des Lampengefäßes 1 ist eine axial ausgerichtete Glühwendel 3 angeordnet, deren mit einem Molybdänröhrchen 301, 302 umhüllte Wendelabgänge 31, 32 jeweils mit einem Stromzuführungsdraht 4, 5 verschweißt sind. Die beiden Stromzuführungsdrähte 4, 5 sind jeweils elektrisch leitend mit einem elektrischen Anschluss 6, 7 des Sockels 2 verbunden. Der mit dem sockelfernen Wendelabgang 32 verbundene Stromzuführungsdraht 5 ist mit einer Strebe 8 ausgestattet, die an drei Punkten mit dem Stromzuführungsdraht 5 verschweißt ist. Sowohl die Strebe 8 als auch der Stromzuführungsdraht 5 sind als Molybdändraht mit einer Dicke von 0,7 mm ausgebildet. Die Strebe 8 überbrückt mehrere abgewinkelte Abschnitte 51, 52, 53 des Stromzuführungsdrahte 5 und bewirkt dadurch eine Versteifung des Stromzuführungsdrahtes 5. Die Strebe 8 besitzt zwei rechtwinklig abgewinkelte Enden, die mit dem Abschnitt 51 bzw. 53 des Stromzuführungsdrahtes 5 verschweißt sind. Außerdem ist die Strebe 8 auch mit dem Übergangsbereich zwischen den Abschnitten 51 und 52 des Stromzuführungsdrahtes 5 verschweißt.The light bulb according to the invention shown in FIG. 1 is a halogen incandescent lamp for a vehicle headlight, in particular an H7 lamp. This lamp has a glassy, substantially cylindrical lamp vessel 1, which is provided at one end with a metallic base 2. Within the lamp vessel 1, an axially aligned incandescent filament 3 is arranged, which are wrapped with a molybdenum tube 301, 302 spiral outlets 31, 32 are each welded to a power supply wire 4, 5. The two power supply wires 4, 5 are each electrically connected to an electrical connection 6, 7 of the base 2. The power supply wire 5 connected to the remote filament outlet 32 is provided with a strut 8 which is welded at three points to the power supply wire 5. Both the strut 8 and the power supply wire 5 are formed as molybdenum wire with a thickness of 0.7 mm. The strut 8 bridges a plurality of angled portions 51, 52, 53 of the power supply wire 5 and thereby causes a stiffening of the power supply wire 5. The strut 8 has two right-angled ends, which are welded to the portion 51 and 53 of the power supply wire 5. In addition, the strut 8 is also welded to the transition region between the sections 51 and 52 of the power supply wire 5.

Die Erfindung beschränkt sich nicht auf das oben näher erläuterte Ausführungsbeispiel. Beispielsweise kann auch der mit dem sockelnahen Wendelabgang 31 verbundene Stromzuführungsdraht 4 mit einer Strebe versehen sein, welche die abgewinkelten Abschnitte des Stromzuführungsdrahtes 4 überbrückt. Die Strebe 8 und die Stromzuführungsdrähte 4, 5 können auch eine geringere Dicke als 0,7 mm, beispielsweise eine Dicke von nur 0,645 Millimeter, besitzen. Außerdem kann die Strebe 8 aber auch eine andere Dicke als der Stromzuführungsdraht 5 aufweisen. Für die Dicke bzw. den Durchmesser der Strebe 8 kommen Werte im Bereich von 0,1 Millimeter bis 1,0 Millimeter in Betracht.The invention is not limited to the embodiment explained in more detail above. By way of example, the power supply wire 4 connected to the socket-like helical outlet 31 can also be provided with a strut which bridges the angled sections of the power supply wire 4. The strut 8 and the power supply wires 4, 5 may also have a thickness less than 0.7 mm, for example, a thickness of only 0.645 millimeters possess. In addition, however, the strut 8 may also have a different thickness than the power supply wire 5. For the thickness or the diameter of the strut 8 values in the range of 0.1 millimeters to 1.0 millimeters come into consideration.

Claims (5)

Elektrische Glühlampe mit einer innerhalb eines lichtdurchlässigen Lampengefäßes (1) angeordneten Glühwendel (3) und Stromzuführungen (4, 5) für die Glühwendel (3), wobei ein Stützmittel für die Stromzuführungen (4, 5) vorgesehen ist, dadurch gekennzeichnet, dass das Stützmittel als mindestens eine Strebe (8) für mindestens eine der Stromzuführungen (5) ausgebildet ist.Electric incandescent lamp having disposed within a light-transmitting lamp vessel (1) the incandescent filament (3) and supply leads (4, 5), characterized for the incandescent filament (3), wherein a support means for the supply leads (4, 5) is provided, that the support means as at least one strut (8) for at least one of the power supply lines (5) is formed. Elektrische Glühlampe nach Anspruch 1, die an einem Ende mit einem Sockel (2) ausgestattet ist, dadurch gekennzeichnet, dass die Glühwendel (3) einen sockelnahen (31) und einen sockelfernen Wendelabgang (32) aufweist, die jeweils mit einer der Stromzuführungen (4, 5) verbunden sind, wobei zumindest die mit dem sockelfernen Wendelabgang (32) verbundene Stromzuführung (5) mit der mindestens einen Strebe (8) ausgestattet ist.Electric incandescent lamp according to claim 1, which is equipped at one end with a base (2), characterized in that the incandescent filament (3) has a socket near (31) and a socket remote coil outlet (32) which in each case with one of the power supply lines (4 , 5) are connected, wherein at least the power supply (5) connected to the socket remote coil outlet (32) is equipped with the at least one strut (8). Elektrische Glühlampe nach Anspruch 2, dadurch gekennzeichnet, dass die mit dem sockelfernen Wendelabgang (32) verbundene Stromzuführung (5) mit einer Strebe (8) ausgestattet ist, die an mindestens drei Punkten mit der sockelfernen Stromzuführung (5) verbunden ist.An electric incandescent lamp according to claim 2, characterized in that the power supply (5) connected to the socket-remote filament outlet (32) is equipped with a strut (8) which is connected to the socket-remote power supply (5) at at least three points. Elektrische Glühlampe nach Anspruch 1 oder 2. dadurch gekennzeichnet, dass die mindestens eine Strebe (8) an mindestens zwei Punkten mit der mindestens einen Stromzuführung (5) verbunden ist.Electric incandescent lamp according to claim 1 or 2, characterized in that the at least one strut (8) is connected at at least two points with the at least one power supply (5). Elektrische Glühlampe nach einem der Ansprüche 1 bis 4. dadurch gekennzeichnet, dass die mindestens eine Strebe (8) als Draht ausgebildet ist.Electric incandescent lamp according to one of claims 1 to 4, characterized in that the at least one strut (8) is designed as a wire.
EP05016087A 2004-08-24 2005-07-25 Electric incandescent lamp Withdrawn EP1667203A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004041113A DE102004041113A1 (en) 2004-08-24 2004-08-24 Electric lightbulb

Publications (2)

Publication Number Publication Date
EP1667203A2 true EP1667203A2 (en) 2006-06-07
EP1667203A3 EP1667203A3 (en) 2009-06-10

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EP05016087A Withdrawn EP1667203A3 (en) 2004-08-24 2005-07-25 Electric incandescent lamp

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US (1) US20060043898A1 (en)
EP (1) EP1667203A3 (en)
JP (1) JP2006066393A (en)
CN (1) CN1741248A (en)
DE (1) DE102004041113A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007058371A1 (en) 2007-12-05 2009-06-10 Osram Gesellschaft mit beschränkter Haftung Lamp, particularly vehicle lamp, has spiral-wound filament with spiral body and two spiral ends, where spiral ends are connected with power supply lines
DE102010002650B4 (en) * 2010-03-08 2012-11-22 Osram Ag Halogen bulb for vehicle headlights
CN104241086A (en) * 2014-09-05 2014-12-24 浙江占字光电股份有限公司 Standard lamp for light intensity detection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105155A1 (en) 1970-02-18 1971-09-02 Philips Nv Projection lamp

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2396674A (en) * 1943-03-19 1946-03-19 Tung Sol Lamp Works Inc Electric incandescent lamp bulb for vehicle lamps
US4994707A (en) * 1988-09-22 1991-02-19 Patent-Treuhand Gesellschaft fur elektrische Glum.b.H. Vibration-resistant single-ended halogen incandescent lamp
JP3047209B2 (en) * 1995-03-16 2000-05-29 株式会社小糸製作所 Filament support structure for light bulb and method for fixing filament to support
DE69830657T2 (en) * 1997-04-28 2006-05-11 Osram Sylvania Inc., Danvers VEHICLE LIGHT WITH REDUCED IRIS
DE10145427A1 (en) * 2001-09-14 2003-04-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Light bulb for automotive headlights
JP2004127632A (en) * 2002-09-30 2004-04-22 Toshiba Lighting & Technology Corp Discharge lamp and lighting system
DE10306178A1 (en) * 2003-02-13 2004-08-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Bulb for vehicle headlights

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105155A1 (en) 1970-02-18 1971-09-02 Philips Nv Projection lamp

Also Published As

Publication number Publication date
CN1741248A (en) 2006-03-01
US20060043898A1 (en) 2006-03-02
EP1667203A3 (en) 2009-06-10
DE102004041113A1 (en) 2006-03-02
JP2006066393A (en) 2006-03-09

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