EP2095399B1 - Two-filament lamp - Google Patents

Two-filament lamp Download PDF

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Publication number
EP2095399B1
EP2095399B1 EP07857338.3A EP07857338A EP2095399B1 EP 2095399 B1 EP2095399 B1 EP 2095399B1 EP 07857338 A EP07857338 A EP 07857338A EP 2095399 B1 EP2095399 B1 EP 2095399B1
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EP
European Patent Office
Prior art keywords
filament
lamp
supply lead
power supply
incandescent
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
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EP07857338.3A
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German (de)
French (fr)
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EP2095399A2 (en
Inventor
Sascha Zelt
Frank Auer
Christian Seichter
Gerhard Behr
Klaus Wittmann
Peter Helbig
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Osram GmbH
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Osram GmbH
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Publication of EP2095399A2 publication Critical patent/EP2095399A2/en
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Publication of EP2095399B1 publication Critical patent/EP2095399B1/en
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    • 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
    • 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

Definitions

  • the invention relates to a lamp for a vehicle headlamp, with two filaments, which are held by three power supply wires within a lamp vessel inserted into a socket, wherein the power supply wires are arranged one above the other with suitable alignment of the lamp, wherein a sockelferner helical departure of the first filament with a shield and a sockelnaher Wendelabgang the second filament is connected to the middle power supply wire and the socket remote from the base remote Wendelabgang is connected to the upper power supply wire.
  • Such a lamp is for example from the EP 1 667 205 A2 the applicant known.
  • These conventional vehicle lamps have a translucent, sealed on one side by means of a pinch seal lamp vessel in the interior of two filaments are arranged, which are used for example to produce a high beam and a daytime running light or a high beam and a low beam.
  • the spiral outlets of the filaments are provided with a welding aid and connected directly or via a dimming with three power supply wires.
  • the power supply wires are one another with a suitable alignment of the lamp in a common Plane arranged, wherein a filament of the lower and the upper power supply wire is held and the second filament by means of the upper and the middle power supply wire offset parallel to the axis of the first filament and above the first filament is fixed.
  • a sockelferner Wendelabgang the first filament is connected to the Abblendkappe and a sockelnaher Wendelabgang the second filament to the middle power supply wire, the remote from the base remote from the base, second Wendelabgang is connected to the upper power supply wire.
  • the invention has for its object to provide a lamp in which an improved coil arrangement is made possible with minimal manufacturing effort.
  • FIG. 1 The aforementioned suitable orientation of the lamp is in FIG. 1 shown. It corresponds to a preferred operating position of the lamp according to the invention.
  • the terminology used herein to describe the invention is to this, in FIG. 1 shown orientation of the lamp knotted.
  • the lamp according to the invention can also be operated in any other operating conditions.
  • the lower power supply wire is compared to the prior art according to the EP 1 667 205 A2 not only parallel to the lamp longitudinal axis, but is connected via a portion of a lamp longitudinal axis away angled away end with the Abblendkappe.
  • the socket-side ends of the power supply wires arranged in a common plane run at a reduced distance from each other, so that the width of the pinch seal is minimized.
  • a filament is held by the lower and upper power supply wires and the second filament is offset parallel to the axis of the first by means of the upper and middle power supply wires Filament and fixed above the first filament.
  • the end of the power supply wire is substantially adapted to the contour of the dimming cap.
  • the mechanical strength of the connection Abblendkappe-power supply wire is further improved.
  • a socket-side holding section and / or an end section of the power supply wire runs approximately parallel to the lamp longitudinal axis. Due to the partially parallel lower power supply wire of this manufacturing technology is easy to manufacture and embedded in the pinch seal.
  • the middle power supply wire is employed in a preferred embodiment of the lamp at least partially obliquely to the lamp longitudinal axis. As a result, the degree of parallel displacement between the two filaments is adjustable within narrow limits.
  • the filaments are preferably axially spaced such that an emission angle ⁇ in the range of 60 to 80 °, in particular from 63.5 to 72.5 ° of the second filament is achieved.
  • the incandescent filaments are axially spaced so that the beam filament axis of the filament an angle ⁇ of at least 320 ° such that in all angular ranges resulting from the possible combinations of the beam angle ⁇ and ⁇ , at most one power supply wire is in the beam path.
  • the invention can be advantageously applied to two-filament halogen lamps which are used in motor vehicle headlights.
  • the lamp according to the invention is by no means limited to such lamp types.
  • FIG. 1 shows a front view of a lamp according to the invention, designed as a halogen incandescent lamp 1, as used in a vehicle headlight use.
  • This has a substantially cylindrical lamp vessel 2, in the interior of which 4 two filaments 6, 8 are arranged, which are used for example to produce a high beam and a daytime running light or a high beam and a low beam.
  • the lamp vessel 2 is sealed via a single-sided pinch seal 10 and inserted into a socket 12.
  • the helical outlets 14, 16, 18, 20 of the filaments 6, 8 are each provided with a welding aid 22 and electrically contacted via power supply wires 24, 26, 28.
  • the power supply wires 24, 26, 28 are arranged one above the other in the illustrated orientation of the lamp 1, which corresponds to a preferred operating position of the lamp 1 according to the invention in the vehicle headlamp, wherein the socket remote Wendelabgang 14 of the filament 6 with a partially shielding Abblendkappe 30 and the sockelnahe Wendelabgang 20 of the second filament 8 is connected to the middle power supply wire 26 and remote from the base 12 remote from the base, second Wendelabgang 18 is connected to the upper power supply wire 28.
  • the lower power supply wire 24 is connected to the dimming cap 30 via an end 34 which is angled away from a longitudinal axis 32 of the lamp.
  • the socket-side ends of the power supply wires 24, 26, 28 which are arranged in a common plane run at a smaller distance from each other, so that the width of the pinch seal 10 is minimized.
  • the end 34 of the power supply wire 24 is substantially adapted to the contour of the dimming cap 30. Thereby, the mechanical strength of the connection Abblendkappe-power supply wire is further improved. In terms of manufacturing technology, it is particularly advantageous if a base-side holding section 36 and an end section 38 of the power supply wire 24 run approximately parallel to the lamp longitudinal axis 32.
  • the filament 6 is held by the lower power supply wire 24 and the upper power supply wire 28 and the second filament 8 by the upper power supply wire 28 and the center power supply wire 26 offset parallel to the axis of the first filament 6 and above the first filament 6 fixed.
  • the second filament outlet 16 of the filament 6 is connected to the power supply wire 28.
  • An end portion 40 of the middle power supply wire 26 is turned obliquely to the lamp longitudinal axis 32.
  • the power supply wires 24, 26, 28 are fixed between two fused quartz glass webs 42, so that they are arranged in a common plane.
  • the power supply wires 24, 26, 28 are each electrically connected to a contact element 44 designed as a contact element.
  • the contact lugs 44 extend in the direction of the power supply wires 24, 26, 28, protrude out of the base 12 and form the electrical connections of the halogen incandescent lamp first
  • FIG. 2 which is a schematic representation of the frame structure of the lamp 1 FIG. 1 shows, the filaments 6, 8 are axially spaced such that an emission angle ⁇ in the range of 60 to 80 °, in particular from 63.5 to 72.5 ° of the second filament 8 is achieved. In this area, no shadowing by the middle power supply wire 26 or the Abblendkappe 30 occurs. In this variant of the invention, the average power supply wire 26 is turned obliquely to the lamp longitudinal axis 32.
  • FIG. 3 shows a plan view of the frame structure FIG. 2 in that the power supply wires 24, 26, 28 and incandescent filaments 6, 8 are arranged in a common plane, wherein a radiation angle ⁇ of the incandescent filament 8 of at least 324.6 ° is reached. In all directions, in the combination of the beam angles ⁇ and ⁇ (see FIG. 2 ) are possible, there is a maximum of one power supply wire 24 in the beam path of the filament. 8
  • a lamp 1 for a vehicle headlamp with two filaments 6, 8, which are held by three power supply wires 24, 26, 28 within a lamp vessel 2 inserted into a base 12, wherein the power supply wires 24, 26, 28 with proper alignment of the lamp 1 are arranged one above the other, wherein a sockelferner spiral outlet 14 of the filament 6 is connected with a Abblendkappe 30 and a sockelnaher Wendelabgang 20 of the second filament 8 with the middle power supply wire 26 and the base 12 remote from the base 12 remote filament outlet 18 of the second filament 8 with the upper power supply wire 28 is connected.
  • the lower power supply wire 24 is connected to the dimming cap 30 via an end 34 which is angled away from a lamp longitudinal axis 32, wherein the angled end 34 of the uninsulated power supply wire 24 is adapted to the contour of the dimming cap 30 in such a manner that the mechanical strength of the connection between this wire 24 and the dimming cap 30 is improved.

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Lampe für einen Fahrzeugscheinwerfer, mit zwei Glühwendeln, die von drei Stromzuführungsdrähten innerhalb eines in einen Sockel eingesetzten Lampengefäßes gehalten sind, wobei die Stromzuführungsdrähte bei geeigneter Ausrichtung der Lampe übereinander angeordnet sind, wobei ein sockelferner Wendelabgang der ersten Glühwendel mit einer Abblendkappe und ein sockelnaher Wendelabgang der zweiten Glühwendel mit dem mittleren Stromzuführungsdraht verbunden ist und der vom Sockel abgewandte sockelferne Wendelabgang mit dem oberen Stromzuführungsdraht verbunden ist.The invention relates to a lamp for a vehicle headlamp, with two filaments, which are held by three power supply wires within a lamp vessel inserted into a socket, wherein the power supply wires are arranged one above the other with suitable alignment of the lamp, wherein a sockelferner helical departure of the first filament with a shield and a sockelnaher Wendelabgang the second filament is connected to the middle power supply wire and the socket remote from the base remote Wendelabgang is connected to the upper power supply wire.

Stand der TechnikState of the art

Eine derartige Lampe ist beispielsweise aus der EP 1 667 205 A2 der Anmelderin bekannt. Diese herkömmlichen Fahrzeuglampen besitzen ein lichtdurchlässiges, einseitig mittels einer Quetschdichtung abgedichtetes Lampengefäß, in dessen Innenraum zwei Glühwendeln angeordnet sind, die beispielsweise zur Erzeugung eines Fernlichts und eines Tagfahrlichts oder eines Fernlichts und eines Abblendlichts verwendet werden. Die Wendelabgänge der Glühwendeln sind mit einer Schweißhilfe versehen und direkt oder über eine Abblendkappe mit drei Stromzuführungsdrähten verbunden. Die Stromzuführungsdrähte sind bei geeigneter Ausrichtung der Lampe übereinander in einer gemeinsamen Ebene angeordnet, wobei eine Glühwendel von dem unteren und dem oberen Stromzuführungsdraht gehalten ist und die zweite Glühwendel mittels des oberen und des mittleren Stromzuführungsdrahtes parallel versetzt zur Achse der ersten Glühwendel und oberhalb der ersten Glühwendel fixiert ist. Ein sockelferner Wendelabgang der ersten Glühwendel ist mit der Abblendkappe und ein sockelnaher Wendelabgang der zweiten Glühwendel mit dem mittleren Stromzuführungsdraht verbunden, wobei der vom Sockel abgewandte sockelferne, zweite Wendelabgang mit dem oberen Stromzuführungsdraht verbunden ist.Such a lamp is for example from the EP 1 667 205 A2 the applicant known. These conventional vehicle lamps have a translucent, sealed on one side by means of a pinch seal lamp vessel in the interior of two filaments are arranged, which are used for example to produce a high beam and a daytime running light or a high beam and a low beam. The spiral outlets of the filaments are provided with a welding aid and connected directly or via a dimming with three power supply wires. The power supply wires are one another with a suitable alignment of the lamp in a common Plane arranged, wherein a filament of the lower and the upper power supply wire is held and the second filament by means of the upper and the middle power supply wire offset parallel to the axis of the first filament and above the first filament is fixed. A sockelferner Wendelabgang the first filament is connected to the Abblendkappe and a sockelnaher Wendelabgang the second filament to the middle power supply wire, the remote from the base remote from the base, second Wendelabgang is connected to the upper power supply wire.

Nachteilig bei derartigen Lampen ist, dass die in einer Ebene parallel versetzt angeordneten Stromzuführungsdrähte eine große Quetschdichtungsbreite mit dem damit verbundenen fertigungstechnischen Aufwand erforderlich machen.A disadvantage of such lamps is that the parallel offset in a plane arranged power supply wires make a large Quetschdichtungsbreite with the associated manufacturing expense required.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, eine Lampe zu schaffen, bei der eine verbesserte Wendelanordnung bei minimalem fertigungstechnischen Aufwand ermöglicht ist.The invention has for its object to provide a lamp in which an improved coil arrangement is made possible with minimal manufacturing effort.

Diese Aufgabe wird gelöst durch eine Lampe gemäß Anspruch 1. Besonders vorteilhafte Ausführungen der Erfindung sind in den abhängigen Ansprüchen beschrieben.This object is achieved by a lamp according to claim 1. Particularly advantageous embodiments of the invention are described in the dependent claims.

Die vorgenannte geeignete Ausrichtung der Lampe ist in Figur 1 dargestellt. Sie entspricht einer bevorzugten Betriebslage der erfindungsgemäßen Lampe. Aus Gründen des einfacheren Verständnisses ist die hier zur Beschreibung der Erfindung verwendete Terminologie an diese, in Figur 1 gezeigte Ausrichtung der Lampe geknüpft. Die erfindungsgemäße Lampe kann aber auch in beliebigen anderen Betriebslagen betrieben werden. Bei der erfindungsgemäßen Lösung verläuft der untere Stromzuführungsdraht gegenüber dem Stand der Technik gemäß der EP 1 667 205 A2 nicht nur parallel zu der Lampenlängsachse, sondern ist über ein von einer Lampenlängsachse abschnittsweise weg abgewinkeltes Ende mit der Abblendkappe verbunden. Dadurch verlaufen die sockelseitigen Enden der in einer gemeinsamen Ebene angeordneten Stromzuführungsdrähte mit verringertem Abstand zueinander, so dass die Breite der Quetschdichtung minimiert ist.The aforementioned suitable orientation of the lamp is in FIG. 1 shown. It corresponds to a preferred operating position of the lamp according to the invention. For ease of understanding, the terminology used herein to describe the invention is to this, in FIG. 1 shown orientation of the lamp knotted. The lamp according to the invention can also be operated in any other operating conditions. In the solution according to the invention, the lower power supply wire is compared to the prior art according to the EP 1 667 205 A2 not only parallel to the lamp longitudinal axis, but is connected via a portion of a lamp longitudinal axis away angled away end with the Abblendkappe. As a result, the socket-side ends of the power supply wires arranged in a common plane run at a reduced distance from each other, so that the width of the pinch seal is minimized.

Um Lichtabschattungseffekte durch die Stromzuführungsdrähte, insbesondere durch den mittleren Stromzuführungsdraht, zu minimieren, ist eine Glühwendel bei einem besonders bevorzugten Ausführungsbeispiel der Erfindung von dem unteren und dem oberen Stromzuführungsdraht gehalten und die zweite Glühwendel mittels des oberen und des mittleren Stromzuführungsdrahtes parallel versetzt zur Achse der ersten Glühwendel und oberhalb der ersten Glühwendel fixiert.In order to minimize light shading effects by the power supply wires, in particular by the center power supply wire, in one particularly preferred embodiment of the invention, a filament is held by the lower and upper power supply wires and the second filament is offset parallel to the axis of the first by means of the upper and middle power supply wires Filament and fixed above the first filament.

Gemäß der Erfindung ist das Ende des Stromzuführungsdrahtes im Wesentlichen an die Kontur der Abblendkappe angepasst. Dadurch wird die mechanische Festigkeit der Verbindung Abblendkappe-Stromzuführungsdraht weiter verbessert.According to the invention, the end of the power supply wire is substantially adapted to the contour of the dimming cap. Thereby, the mechanical strength of the connection Abblendkappe-power supply wire is further improved.

Fertigungstechnisch besonders vorteilhaft ist es, wenn ein sockelseitiger Halteabschnitt und/oder ein Endabschnitt des Stromzuführungsdrahtes etwa parallel zu der Lampenlängsachse verläuft. Aufgrund des abschnittsweise parallel verlaufenden unteren Stromzuführungsdrahtes ist dieser fertigungstechnisch einfach herstell- und in die Quetschdichtung einbettbar.From a manufacturing point of view, it is particularly advantageous if a socket-side holding section and / or an end section of the power supply wire runs approximately parallel to the lamp longitudinal axis. Due to the partially parallel lower power supply wire of this manufacturing technology is easy to manufacture and embedded in the pinch seal.

Der mittlere Stromzuführungsdraht ist bei einem bevorzugten Ausführung der Lampe zumindest abschnittsweise schräg zu der Lampenlängsachse angestellt. Dadurch ist der Grad der Parallelversetzung zwischen den beiden Glühwendeln in engen Grenzen einstellbar.The middle power supply wire is employed in a preferred embodiment of the lamp at least partially obliquely to the lamp longitudinal axis. As a result, the degree of parallel displacement between the two filaments is adjustable within narrow limits.

Die Glühwendeln sind vorzugsweise derart axial beabstandet, dass ein Abstrahlwinkel α im Bereich von 60 bis 80°, insbesondere von 63,5 bis 72,5° der zweiten Glühwendel erreicht wird. Insbesondere sind die Glühwendeln derart axial beabstandet, dass sich um die Wendelkörperachse der Glühwendel ein Abstrahlwinkel β von mindestens 320° derart ergibt, dass sich in allen Winkelbereichen die aus den möglichen Kombinationen der Abstrahlwinkel α und β resultieren, höchstens ein Stromzuführungsdraht im Strahlengang befindet.The filaments are preferably axially spaced such that an emission angle α in the range of 60 to 80 °, in particular from 63.5 to 72.5 ° of the second filament is achieved. In particular, the incandescent filaments are axially spaced so that the beam filament axis of the filament an angle β of at least 320 ° such that in all angular ranges resulting from the possible combinations of the beam angle α and β, at most one power supply wire is in the beam path.

Die Erfindung kann vorteilhaft bei Zweiwendel-Halogenlampen, die zum Einsatz in Kraftfahrzeugscheinwerfern dienen, angewendet werden.The invention can be advantageously applied to two-filament halogen lamps which are used in motor vehicle headlights.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

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

  • Figur 1 eine Vorderansicht einer erfindungsgemäßen, als Halogenglühlampe ausgebildeten Lampe;
  • Figur 2 eine schematische Darstellung des Gestellaufbaus der Lampe aus Figur 1 und
  • Figur 3 eine Draufsicht auf den Gestellaufbau aus Figur 2.
The invention will be explained in more detail below with reference to a preferred embodiment. Show it:
  • FIG. 1 a front view of a lamp according to the invention, designed as a halogen incandescent lamp;
  • FIG. 2 a schematic representation of the frame structure of the lamp FIG. 1 and
  • FIG. 3 a plan view of the frame structure of Figure 2.

Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention

Die Erfindung wird im Folgenden anhand einer einseitig gesockelten Lampe für einen Fahrzeugscheinwerfer erläutert. Die erfindungsgemäße Lampe ist jedoch keinesfalls auf derartige Lampentypen beschränkt.The invention will be explained below with reference to a single-ended lamp for a vehicle headlight. However, the lamp according to the invention is by no means limited to such lamp types.

Figur 1 zeigt eine Vorderansicht einer erfindungsgemäßen, als Halogenglühlampe ausgebildeten Lampe 1, wie sie in einem Fahrzeugscheinwerfer Verwendung findet. Diese besitzt ein im Wesentlichen zylinderförmiges Lampengefäß 2, in dessen Innenraum 4 zwei Glühwendeln 6, 8 angeordnet sind, die beispielsweise zur Erzeugung eines Fernlichts und eines Tagfahrlichts oder eines Fernlichts und eines Abblendlichts verwendet werden. Das Lampengefäß 2 ist über eine einseitige Quetschdichtung 10 abgedichtet und in einen Sockel 12 eingesetzt. Die Wendelabgänge 14, 16, 18, 20 der Glühwendeln 6, 8 sind jeweils mit einer Schweißhilfe 22 versehen und über Stromzuführungsdrähte 24, 26, 28 elektrisch kontaktiert. Die Stromzuführungsdrähte 24, 26, 28 sind bei der dargestellten Ausrichtung der Lampe 1, die einer bevorzugten Betriebslage der erfindungsgemäßen Lampe 1 im Fahrzeugscheinwerfer entspricht, übereinander angeordnet, wobei der sockelferne Wendelabgang 14 der Glühwendel 6 mit einer diese teilweise abschirmenden Abblendkappe 30 und der sockelnahe Wendelabgang 20 der zweiten Glühwendel 8 mit dem mittleren Stromzuführungsdraht 26 verbunden ist und der vom Sockel 12 abgewandte sockelferne, zweite Wendelabgang 18 mit dem oberen Stromzuführungsdraht 28 verbunden ist. Erfindungsgemäß ist der untere Stromzuführungsdraht 24 über ein von einer Lampenlängsachse 32 abschnittsweise weg abgewinkeltes Ende 34 mit der Abblendkappe 30 verbunden. Dadurch verlaufen die sockelseitigen Enden der in einer gemeinsamen Ebene angeordneten Stromzuführungsdrähte 24, 26, 28 mit geringerem Abstand zueinander, so dass die Breite der Quetschdichtung 10 minimiert ist. Das Ende 34 des Stromzuführungsdrahtes 24 ist im Wesentlichen an die Kontur der Abblendkappe 30 angepasst. Dadurch wird die mechanische Festigkeit der Verbindung Abblendkappe-Stromzuführungsdraht weiter verbessert. Fertigungstechnisch besonders vorteilhaft ist es, wenn ein sockelseitiger Halteabschnitt 36 und ein Endabschnitt 38 des Stromzuführungsdrahtes 24 etwa parallel zu der Lampenlängsachse 32 verläuft. Um Lichtabschattungseffekte durch die Stromzuführungsdrähte 24, 26, 28, insbesondere durch den mittleren Stromzuführungsdraht 26, zu minimieren, ist die Glühwendel 6 von dem unteren Stromzuführungsdraht 24 und dem oberen Stromzuführungsdraht 28 gehalten und die zweite Glühwendel 8 mittels des oberen Stromzuführungsdrahtes 28 und des mittleren Stromzuführungsdrahtes 26 parallel versetzt zur Achse der ersten Glühwendel 6 und oberhalb der ersten Glühwendel 6 fixiert. Der zweite Wendelabgang 16 der Glühwendel 6 ist mit dem Stromzuführungsdraht 28 verbunden. Ein Endabschnitt 40 des mittleren Stromzuführungsdrahtes 26 ist schräg zu der Lampenlängsachse 32 angestellt. Dadurch ist der Grad der Parallelversetzung zwischen den beiden Glühwendeln 6, 8 in engen Grenzen einstellbar. Die Stromzuführungsdrähte 24, 26, 28 sind zwischen zwei miteinander verschmolzenen Quarzglasstegen 42 fixiert, so dass sie in einer gemeinsamen Ebene angeordnet sind. Anstelle der Quarzglasstege 42 könnten Hartglasstege Verwendung finden. Die Stromzuführungsdrähte 24, 26, 28 sind jeweils mit einem als Kontaktfahne 44 ausgebildeten Kontaktelement elektrisch leitend verbunden. Die Kontaktfahnen 44 verlaufen in Richtung der Stromzuführungsdrähte 24, 26, 28, ragen aus dem Sockel 12 heraus und bilden die elektrischen Anschlüsse der Halogenglühlampe 1. FIG. 1 shows a front view of a lamp according to the invention, designed as a halogen incandescent lamp 1, as used in a vehicle headlight use. This has a substantially cylindrical lamp vessel 2, in the interior of which 4 two filaments 6, 8 are arranged, which are used for example to produce a high beam and a daytime running light or a high beam and a low beam. The lamp vessel 2 is sealed via a single-sided pinch seal 10 and inserted into a socket 12. The helical outlets 14, 16, 18, 20 of the filaments 6, 8 are each provided with a welding aid 22 and electrically contacted via power supply wires 24, 26, 28. The power supply wires 24, 26, 28 are arranged one above the other in the illustrated orientation of the lamp 1, which corresponds to a preferred operating position of the lamp 1 according to the invention in the vehicle headlamp, wherein the socket remote Wendelabgang 14 of the filament 6 with a partially shielding Abblendkappe 30 and the sockelnahe Wendelabgang 20 of the second filament 8 is connected to the middle power supply wire 26 and remote from the base 12 remote from the base, second Wendelabgang 18 is connected to the upper power supply wire 28. According to the invention, the lower power supply wire 24 is connected to the dimming cap 30 via an end 34 which is angled away from a longitudinal axis 32 of the lamp. As a result, the socket-side ends of the power supply wires 24, 26, 28 which are arranged in a common plane run at a smaller distance from each other, so that the width of the pinch seal 10 is minimized. The end 34 of the power supply wire 24 is substantially adapted to the contour of the dimming cap 30. Thereby, the mechanical strength of the connection Abblendkappe-power supply wire is further improved. In terms of manufacturing technology, it is particularly advantageous if a base-side holding section 36 and an end section 38 of the power supply wire 24 run approximately parallel to the lamp longitudinal axis 32. In order to minimize light shading effects by the power supply wires 24, 26, 28, particularly by the center power supply wire 26, the filament 6 is held by the lower power supply wire 24 and the upper power supply wire 28 and the second filament 8 by the upper power supply wire 28 and the center power supply wire 26 offset parallel to the axis of the first filament 6 and above the first filament 6 fixed. The second filament outlet 16 of the filament 6 is connected to the power supply wire 28. An end portion 40 of the middle power supply wire 26 is turned obliquely to the lamp longitudinal axis 32. As a result, the degree of parallel displacement between the two filaments 6, 8 is adjustable within narrow limits. The power supply wires 24, 26, 28 are fixed between two fused quartz glass webs 42, so that they are arranged in a common plane. Instead of the quartz glass webs 42 hard glass webs could be used. The power supply wires 24, 26, 28 are each electrically connected to a contact element 44 designed as a contact element. The contact lugs 44 extend in the direction of the power supply wires 24, 26, 28, protrude out of the base 12 and form the electrical connections of the halogen incandescent lamp first

Gemäß Figur 2, die eine schematische Darstellung des Gestellaufbaus der Lampe 1 aus Figur 1 zeigt, sind die Glühwendeln 6, 8 derart axial beabstandet, dass ein Abstrahlwinkel α im Bereich von 60 bis 80°, insbesondere von 63,5 bis 72,5° der zweiten Glühwendel 8 erreicht wird. In diesem Bereich tritt keine Abschattung durch den mittleren Stromzuführungsdraht 26 oder die Abblendkappe 30 auf. Bei dieser Variante der Erfindung ist der mittlere Stromzuführungsdraht 26 schräg zu der Lampenlängsachse 32 angestellt.According to FIG. 2 , which is a schematic representation of the frame structure of the lamp 1 FIG. 1 shows, the filaments 6, 8 are axially spaced such that an emission angle α in the range of 60 to 80 °, in particular from 63.5 to 72.5 ° of the second filament 8 is achieved. In this area, no shadowing by the middle power supply wire 26 or the Abblendkappe 30 occurs. In this variant of the invention, the average power supply wire 26 is turned obliquely to the lamp longitudinal axis 32.

Figur 3 zeigt eine Draufsicht auf den Gestellaufbau aus Figur 2, gemäß der die Stromzuführungsdrähte 24, 26, 28 und Glühwendeln 6, 8 in einer gemeinsamen Ebene angeordnet sind, wobei ein Abstrahlwinkel β der Glühwendel 8 von mindestens 324,6° erreicht wird. In allen Richtungen, die in der Kombination der Abstrahlwinkel α und β (siehe Figur 2) möglich sind, liegt maximal ein Stromzuführungsdraht 24 im Strahlengang der Glühwendel 8. FIG. 3 shows a plan view of the frame structure FIG. 2 in that the power supply wires 24, 26, 28 and incandescent filaments 6, 8 are arranged in a common plane, wherein a radiation angle β of the incandescent filament 8 of at least 324.6 ° is reached. In all directions, in the combination of the beam angles α and β (see FIG. 2 ) are possible, there is a maximum of one power supply wire 24 in the beam path of the filament. 8

Offenbart ist eine Lampe 1 für einen Fahrzeugscheinwerfer, mit zwei Glühwendeln 6, 8, die von drei Stromzuführungsdrähten 24, 26, 28 innerhalb eines in einen Sockel 12 eingesetzten Lampengefäßes 2 gehalten sind, wobei die Stromzuführungsdrähte 24, 26, 28 bei geeigneter Ausrichtung der Lampe 1 übereinander angeordnet sind, wobei ein sockelferner Wendelabgang 14 der Glühwendel 6 mit einer Abblendkappe 30 und ein sockelnaher Wendelabgang 20 der zweiten Glühwendel 8 mit dem mittleren Stromzuführungsdraht 26 verbunden ist und der vom Sockel 12 abgewandte sockelferne Wendelabgang 18 der zweiten Glühwendel 8 mit dem oberen Stromzuführungsdraht 28 verbunden ist. Erfindungsgemäß ist der untere Stromzuführungsdraht 24 über ein von einer Lampenlängsachse 32 abschnittsweise weg abgewinkeltes Ende 34 mit der Abblendkappe 30 verbunden, wobei das abgewinkelte Ende 34 des unlern Stromzuführungsdrahts 24 derart im Wesenklichen an die Kontur der Abblendkappe 30 angepasst ist, dass die mechanische Festigkeit der Verbindung zwischen diesem Draht 24 und der Abblendkappe 30 verbessert wird.Disclosed is a lamp 1 for a vehicle headlamp, with two filaments 6, 8, which are held by three power supply wires 24, 26, 28 within a lamp vessel 2 inserted into a base 12, wherein the power supply wires 24, 26, 28 with proper alignment of the lamp 1 are arranged one above the other, wherein a sockelferner spiral outlet 14 of the filament 6 is connected with a Abblendkappe 30 and a sockelnaher Wendelabgang 20 of the second filament 8 with the middle power supply wire 26 and the base 12 remote from the base 12 remote filament outlet 18 of the second filament 8 with the upper power supply wire 28 is connected. According to the invention, the lower power supply wire 24 is connected to the dimming cap 30 via an end 34 which is angled away from a lamp longitudinal axis 32, wherein the angled end 34 of the uninsulated power supply wire 24 is adapted to the contour of the dimming cap 30 in such a manner that the mechanical strength of the connection between this wire 24 and the dimming cap 30 is improved.

Claims (5)

  1. Lamp for a vehicle headlight, having two incandescent filaments (6, 8) that are held by three supply lead wires (24, 26, 28) inside a lamp vessel (2) inserted into a base (12), the supply lead wires (24, 26, 28) being arranged one above another, given suitable alignment of the lamp (1), an outgoing filament line (14), remote from the base, of the first incandescent filament (6) being connected to an anti-dazzle device (30), and an outgoing filament line (20), near the base, of the second incandescent filament (8) being connected to the middle supply lead wire (26), and the outgoing filament line (18), averted from and remote from the base (12), of the second incandescent filament (8) being connected to the upper supply lead wire (28), characterized in that the lower supply lead wire (24) is connected to the anti-dazzle device (30) via an end (34) angled away, at least in some sections, from the lamp longitudinal axis (32), the angled-away end (34) of the lower supply lead wire (24) being substantially adapted to the contour of the anti-dazzle device (30) such that the mechanical strength of the connection between said wire (24) and the anti-dazzle device (30) is improved.
  2. Lamp according to Claim 1, in which the incandescent filament (6) is held by the lower and the upper supply lead wires (24; 28), and the second incandescent filament (8) is fixed by means of the upper and the middle supply lead wires (28; 26) offset in a fashion parallel to the axis of the first incandescent filament (6) and above the first incandescent filament (6).
  3. Lamp according to one of the preceding claims, in which the middle supply lead wire (26) is positioned obliquely, at least in some sections, to the lamp longitudinal axis (32).
  4. Lamp according to one of the preceding claims, in which the incandescent filaments (6, 8) are spaced apart axially in such a way as to achieve for the second incandescent filament (8) an emission angle α in the range from 60 to 80°, in particular from 63.5 to 72.5°.
  5. Lamp according to Claim 4, in which the incandescent filaments (6, 8) are spaced apart axially in such a way as to produce around the filament body axis of the incandescent filament (8) an emission angle β of at least 320° such that at most one supply lead wire (24) is located in the beam path in all angular ranges resulting from the possible combinations of the emission angles α and β.
EP07857338.3A 2006-12-20 2007-12-10 Two-filament lamp Not-in-force EP2095399B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006060419A DE102006060419A1 (en) 2006-12-20 2006-12-20 Two-filament lamp
PCT/EP2007/063618 WO2008074684A2 (en) 2006-12-20 2007-12-10 Two-filament lamp

Publications (2)

Publication Number Publication Date
EP2095399A2 EP2095399A2 (en) 2009-09-02
EP2095399B1 true EP2095399B1 (en) 2016-03-02

Family

ID=39431479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07857338.3A Not-in-force EP2095399B1 (en) 2006-12-20 2007-12-10 Two-filament lamp

Country Status (6)

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US (1) US8188658B2 (en)
EP (1) EP2095399B1 (en)
DE (1) DE102006060419A1 (en)
ES (1) ES2574833T3 (en)
HU (1) HUE028007T2 (en)
WO (1) WO2008074684A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006052950A1 (en) * 2006-11-09 2008-05-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH halogen bulb
CN105164786B (en) * 2013-05-07 2017-07-25 皇家飞利浦有限公司 Automobile front lamp with dividing plate
JP6217251B2 (en) * 2013-09-05 2017-10-25 岩崎電気株式会社 Halogen lamp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7320839U (en) * 1974-11-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric light bulb
GB1313531A (en) * 1970-04-16 1973-04-11 Thorn Electrical Ind Ltd Incandescent lamp manufacture
EP0812004B1 (en) * 1996-06-04 2003-07-09 Honda Giken Kogyo Kabushiki Kaisha Automobile lamp bulb
DE102004053644A1 (en) 2004-11-03 2006-05-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vehicle headlamp

Also Published As

Publication number Publication date
DE102006060419A1 (en) 2008-06-26
WO2008074684A3 (en) 2009-02-26
HUE028007T2 (en) 2016-11-28
ES2574833T3 (en) 2016-06-22
WO2008074684A2 (en) 2008-06-26
US8188658B2 (en) 2012-05-29
EP2095399A2 (en) 2009-09-02
US20100039017A1 (en) 2010-02-18

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