EP1196941A1 - Halogen filament lamp - Google Patents

Halogen filament lamp

Info

Publication number
EP1196941A1
EP1196941A1 EP01956283A EP01956283A EP1196941A1 EP 1196941 A1 EP1196941 A1 EP 1196941A1 EP 01956283 A EP01956283 A EP 01956283A EP 01956283 A EP01956283 A EP 01956283A EP 1196941 A1 EP1196941 A1 EP 1196941A1
Authority
EP
European Patent Office
Prior art keywords
filament
halogen
incandescent lamp
incandescent
lamp according
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.)
Granted
Application number
EP01956283A
Other languages
German (de)
French (fr)
Other versions
EP1196941B1 (en
Inventor
Klaus-Peter Knorr
Klaus Wittmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1196941A1 publication Critical patent/EP1196941A1/en
Application granted granted Critical
Publication of EP1196941B1 publication Critical patent/EP1196941B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/38—Seals for leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap

Definitions

  • the invention relates to a halogen incandescent lamp for motor vehicle headlights according to the preamble of patent claim 1.
  • Halogen incandescent lamps for headlights of motor vehicles with a vehicle electrical system voltage of 12 volts are commercially available. These halogen incandescent lamps have a power consumption of approx. 50-100 watts and have at least one incandescent filament, the incandescent filament being simply coiled and adapted to an operating voltage of approximately 12 volts.
  • Halogen bulbs for motor vehicle headlights with a nominal vehicle electrical system voltage of 24 volts are also commercially available. These halogen incandescent lamps have a power consumption of between 50 watts and 100 and have at least one incandescent filament, the incandescent filament being doubly coiled and designed for an operating voltage of at least 20 volts.
  • the single-spiral ends of the double-spiral filament are provided with insertion pins. Instead of an insertion pin, a remainder of the core wire can also remain in each single-coiled filament end, which was only etched out of the light-emitting, double-coiled area of the filament, but not from its single-ended ends using acid.
  • the secondary winding of this double-wound filament has very few turns. The lighting that can be achieved in this way has an inhomogeneous effect.
  • the at least one incandescent filament is designed as a single coil, the dimensions and / or geometry of which are matched to an operating voltage of at least 20 volts, the length of the single coil being a value in the range from 4.0 mm to 6.5 mm has.
  • the single winding of the halogen incandescent lamp according to the invention has a number of turns three to four times higher and a significantly smaller distance between the individual turns than the secondary winding of the double-coiled incandescent filament of the previously conventional halogen incandescent lamps for headlights of motor vehicles with a vehicle electrical system nominal voltage of 24 volts.
  • the single filament of the halogen incandescent lamp according to the invention is advantageously equipped with at least 20 turns, which are distributed uniformly over the length of the single filament, in order to achieve the most homogeneous illumination possible.
  • the halogen incandescent lamp according to the invention due to the higher operating voltage, has a single filament as a filament, which consists of a thinner and approximately twice as long wire as the single filament of the 12 halogen filament - lamp is made.
  • the filament ends of the halogen lamps according to the invention are Incandescent lamp advantageously provided with proppants.
  • Support coils or tubes made of molybdenum foil or molybdenum tape, which enclose the uncoiled ends of the single-purpose egg, are preferably suitable as support means.
  • the single winding of the halogen incandescent lamp according to the invention has at least 20 turns and an outside diameter between 1.4 mm and 2.0 mm, so that the halogen incandescent lamp according to the invention, despite the comparatively long wire used to produce the incandescent filament, has a spatially compact single winding Has filament.
  • the diameter of the wire used for the production of incandescent filaments is advantageously between 0, 11 mm and 0.14 mm, on the one hand to adapt the filament resistance to the desired power consumption of the halogen incandescent lamp according to the invention and on the other hand to enable a spatially compact single filament as an incandescent filament.
  • Figure 1 is a schematic side view of a halogen lamp according to the invention for a motor vehicle headlight with a single helix, axially arranged filament
  • Figure 2 is a plan view of an axial coil according to the first embodiment of the invention in a schematic representation
  • Figure 3 is a plan view of a transverse spiral according to the second embodiment of the invention in a schematic representation
  • FIG. 4 shows a schematic top view of a single winding according to a third exemplary embodiment of the invention
  • the halogen incandescent lamp according to the first exemplary embodiment has an essentially cylindrical lamp vessel 1 with a gas-tightly closed squeeze foot 2, through which two power supply wires 3, 4 are passed for the filament 5 arranged inside the lamp vessel 1 in the axial direction.
  • the pinch foot 2 is fixed in the lamp base 6, which is equipped with two contact lugs 7 for supplying voltage to the incandescent filament 5.
  • Figure 1 shows schematically the structure of this halogen lamp. It is a halogen incandescent lamp for a motor vehicle headlight with a power consumption of approximately 70 watts, which is intended for operation on a nominal electrical system voltage of 24 volts.
  • the incandescent filament 5 is designed as a single winding which has a length of approximately 5.6 mm ⁇ 0.2 mm, an outer diameter of approximately 1.7 mm and 26 turns.
  • the above information relates to the wound area of the incandescent filament 5 which is responsible for the light emission, without taking into account the uncoiled ends 5a of the incandescent filament 5.
  • the tungsten filament wire used for producing the simple thread 5 has a diameter of 0.13 mm on.
  • the effective length of the helix wire that is to say the length of the helix wire forming the wound region of the single-thread 5 is approximately 124.8 mm.
  • the uncoiled ends 5 a of the filament 5 are each provided with a coating filament 8 to improve the resistance to vibrations and to support the filament 5.
  • the coating schin 8 enclose the respective uncoiled end 5 a with a press fit. They preferably extend over most of the respective uncoiled end 5 a.
  • Figure 2 the structure of the filament 5 according to the first embodiment is shown schematically.
  • the incandescent filament 5 ' is designed as a transverse, that is to say perpendicularly to the lamp axis, single coil which has a length of approximately 5.2 mm ⁇ 0.2 mm, an outer diameter of approximately 1.9 mm and 23 Has turns.
  • the aforementioned information relates to the wound area of the filament 5 'responsible for the light emission, without taking into account the uncoiled ends 5a' of the filament 5 '.
  • the spiral wire used to produce the single-thread ice 5 ' made of tungsten has a diameter of 0.13 mm.
  • the effective length of the helix wire is approximately 124.9 mm.
  • the uncoiled ends 5a 'of the filament 5' are each provided with a coating filament 8 'to improve the resistance to vibrations and to support the filament 5'.
  • the coating coils 8 ' enclose the respective uncoiled end 5a' with a clamp fit. They preferably extend over most of the respective uncoiled end 5a '.
  • Figure 3 the structure of the filament 5 'according to the second embodiment is shown schematically.
  • Both single coils 5, 5 'described in more detail above are adapted due to their dimensions and geometry to an operating voltage of approximately 24 volts and a power consumption of approximately 70 watts.
  • the single helix 5 "according to the third exemplary embodiment shown in FIG. 4 differs from the single helices of the two exemplary embodiments explained above only in that the uncoiled ends 5a" are each surrounded by a tube 8 "made of molybdenum tape with a clamp fit.
  • the molybdenum - Danube tubes 8 each extend over the major part of the corresponding uncoiled end 5a".
  • the molybdenum tubes 8 "facilitate the welding of the helix ends to the current supply wires 3, 4, which are also made of molybdenum.
  • the invention is not limited to the exemplary embodiments explained in more detail above.
  • the coating coils 8, 8 'or molybdenum tubes 8 " are only required if particularly high demands are placed on the vibration resistance.
  • other support means for the incandescent filament can also be used in this case become.
  • the power supply wires 3, 4 can be made correspondingly thick and the associated uncoiled ends 5a, 5a' of the incandescent coils 5, 5 'can be made correspondingly short, so that the power supply wires 3, 4 already guarantee high resistance to vibrations.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Resistance Heating (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention relates to a halogen filament lamp for motor vehicle headlamps with an electrical consumption of between 50 watts and 100 watts and has at least one filament, whereby, according to the invention, the at least one filament (5) is in the form of a simple helix, the size and/or geometry of which is determined by an operating voltage of at least 20 volts, with the length of single helix limited to a range from 4.0 mm to 6.5 mm.

Description

Halogenglühlampehalogen bulb
Die Erfindung betrifft eine Halogenglühlampe für Kraftfahrzeugscheinwerfer gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a halogen incandescent lamp for motor vehicle headlights according to the preamble of patent claim 1.
I. Stand der TechnikI. State of the art
Im Handel sind Halogenglühlampen für Scheinwerfer von Kraftfahrzeuge mit einer Bordnetzspannung von 12 Volt erhältlich. Diese Halogenglühlampen weisen eine Leistungsaufnahme von ca. 50-100 Watt auf und besitzen mindestens eine Glühwendel, wobei die Glühwendel einfach gewendelt ist und an eine Betriebsspannung von ungefähr 12 Volt angepaßt ist.Halogen incandescent lamps for headlights of motor vehicles with a vehicle electrical system voltage of 12 volts are commercially available. These halogen incandescent lamps have a power consumption of approx. 50-100 watts and have at least one incandescent filament, the incandescent filament being simply coiled and adapted to an operating voltage of approximately 12 volts.
Außerdem sind im Handel Halogenglühlampen für Scheinwerfer von Kraftfahrzeugen mit einer Bordnetz-Nennspannung von 24 Volt erhältlich. Diese Halogenglüh- lampen weisen eine Leistungsaufnahme zwischen 50 Watt und 100 auf und besitzen mindestens eine Glühwendel, wobei die Glühwendel doppelt gewendelt ist und für eine Betriebsspannung von mindestens 20 Volt ausgelegt ist. Um eine ausreichende Erschütterungsfestigkeit zu gewährleisten, sind die einfach gewendelten Enden der doppelt gewendelten Glühwendel mit Einsteckstiften versehen. Statt eines Einsteck- Stiftes kann in jedem einfach gewendelten Glühwendelende auch ein Rest des Kerndrahtes verblieben sein, der nur aus dem lichtemittierenden, doppelt gewendelten Bereich der Glühwendel, nicht aber aus ihren einfach gewendelten Enden mittels Säure heraus geätzt wurde. Das Sekundärgewickel dieser doppelt gewendelten Glühwendel weist nur sehr wenige Windungen auf. Die damit erzielbare Beleuch- tung wirkt inhomogen.Halogen bulbs for motor vehicle headlights with a nominal vehicle electrical system voltage of 24 volts are also commercially available. These halogen incandescent lamps have a power consumption of between 50 watts and 100 and have at least one incandescent filament, the incandescent filament being doubly coiled and designed for an operating voltage of at least 20 volts. To ensure sufficient resistance to vibrations, the single-spiral ends of the double-spiral filament are provided with insertion pins. Instead of an insertion pin, a remainder of the core wire can also remain in each single-coiled filament end, which was only etched out of the light-emitting, double-coiled area of the filament, but not from its single-ended ends using acid. The secondary winding of this double-wound filament has very few turns. The lighting that can be achieved in this way has an inhomogeneous effect.
II. Darstellung der ErfindungII. Presentation of the invention
Es ist die Aufgabe der Erfindung, eine Halogenglühlampe für Kraftfahrzeugscheinwerfer mit einer Leistungsaufnahme zwischen 50 Watt und 100 Watt bereitzustellen, die an einer Bordnetz-Nennspannung von 24 Volt betreibbar ist und eine homogenere Beleuchtung gewährleistet.It is the object of the invention to provide a halogen incandescent lamp for motor vehicle headlights with a power consumption between 50 watts and 100 watts, which can be operated with a nominal voltage of 24 volts and ensures more homogeneous lighting.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausführungen der Erfindung sind in den Unteransprü- chen beschrieben.This object is achieved by the features of claim 1. Particularly advantageous embodiments of the invention are described in the subclaims.
Bei der erfindungsgemäßen Halogenglühlampe ist die mindestens eine Glühwendel als Einfachgewickel ausgebildet, dessen Maße und/oder Geometrie auf eine Betriebsspannung von mindestens 20 Volt abgestimmt sind, wobei die Länge des Ein- fachgewickels einen Wert im Bereich von 4,0 mm bis 6,5 mm besitzt. Durch die Ausstattung mit dem erfindungsgemäßen Einfachgewickel und durch das Zusammenwirken mit dem Reflektor des Kraftfahrzeugscheinwerfers ist mit der erfindungsgemäßen Halogenglühlampe eine homogenere Beleuchtung als mit den vorgenannten, bisher üblichen Halogenglühlampen erzielbar. Die Beschränkung der Länge des erfindungsgemäßen Einfachgewickeis auf einen Bereich von 4,0 mm bis 6,5 mm gewährleistet durch das Zusammenwirken mit dem Reflektor des Kraftfahrzeugscheinwerfers eine gerichtete Lichtemission und einen wohldefinierten Lichtkegel. Das Einfachgewickel der erfindungsgemäßen Halogenglühlampe besitzt eine um das Drei- bis Vierfache höhere Windungszahl und einen deutlich geringeren Abstand zwischen den einzelnen Windungen als das Sekundärgewickel der doppelt gewendel- ten Glühwendel der bisher üblichen Halogenglühlampen für Scheinwerfer von Kraftfahrzeugen mit einer Bordnetz-Nennspannung von 24 Volt. Vorteilhafterweise ist das Einfachgewickel der erfindungsgemäßen Halogenglühlampe mit mindestens 20 Windungen ausgestattet, die sich gleichmäßig über die Länge des Einfachgewickeis verteilen, um eine möglichst homogene Beleuchtung zu erzielen.In the halogen incandescent lamp according to the invention, the at least one incandescent filament is designed as a single coil, the dimensions and / or geometry of which are matched to an operating voltage of at least 20 volts, the length of the single coil being a value in the range from 4.0 mm to 6.5 mm has. By equipping with the simple winding according to the invention and by interacting with the reflector of the motor vehicle headlight, the halogen incandescent lamp according to the invention can be used to achieve more homogeneous lighting than with the aforementioned, previously conventional halogen incandescent lamps. The limitation of the length of the single weight according to the invention to a range of 4.0 mm to 6.5 mm ensures, by interacting with the reflector of the motor vehicle headlight, directional light emission and a well-defined light cone. The single winding of the halogen incandescent lamp according to the invention has a number of turns three to four times higher and a significantly smaller distance between the individual turns than the secondary winding of the double-coiled incandescent filament of the previously conventional halogen incandescent lamps for headlights of motor vehicles with a vehicle electrical system nominal voltage of 24 volts. The single filament of the halogen incandescent lamp according to the invention is advantageously equipped with at least 20 turns, which are distributed uniformly over the length of the single filament, in order to achieve the most homogeneous illumination possible.
Im Unterschied zu den oben, als Stand der Technik beschriebenen 12V-Halogenglüh- lampen besitzt die erfindungsgemäße Halogenglühlampe, aufgrund der höheren Betriebsspannung, als Glühwendel ein Einfachgewickel, das aus einem dünneren und einem ca. doppelt so langen Draht wie das Einfachgewickel der 12-Halogenglüh- lampe gefertigt ist. Um trotz des dünneren Drahtes eine hohe Erschütterungsfestig- keit zu gewährleisten, sind die Glühwendelenden der erfindungsgemäßen Halogen- glühlampe vorteilhafterweise mit Stützmitteln versehen. Als Stützmittel eignen sich vorzugsweise Stützwendeln oder aus Molybdänfolie bzw. Molybdänband gefertigte Röhrchen, die die ungewendelten Enden des Einfachgewickeis umschließen.In contrast to the 12 V halogen incandescent lamps described above as prior art, the halogen incandescent lamp according to the invention, due to the higher operating voltage, has a single filament as a filament, which consists of a thinner and approximately twice as long wire as the single filament of the 12 halogen filament - lamp is made. In order to ensure high resistance to vibrations despite the thinner wire, the filament ends of the halogen lamps according to the invention are Incandescent lamp advantageously provided with proppants. Support coils or tubes made of molybdenum foil or molybdenum tape, which enclose the uncoiled ends of the single-purpose egg, are preferably suitable as support means.
Vorteilhafterweise besitzt das Einfachgewickel der erfindungsgemäßen Halogen- glühlampe mindestens 20 Windungen und einen Außendurchmesser zwischen 1,4 mm und 2,0 mm, so daß die erfindungsgemäße Halogenglühlampe trotz des vergleichsweise langen Drahtes, der zur Herstellung der Glühwendel verwendet wird, ein räumlich kompaktes Einfachgewickel als Glühwendel besitzt. Der Durchmesser des zur Glühwendelherstellung verwendeten Drahtes liegt vorteilhafterweise zwi- sehen 0, 11 mm und 0,14 mm, um einerseits den Wendelwiderstand an die gewünschte Leistungsaufnahme der erfindungsgemäßen Halogenglühlampe anzupassen und andererseits ein räumlich kompaktes Einfachgewickel als Glühwendel zu ermöglichen.Advantageously, the single winding of the halogen incandescent lamp according to the invention has at least 20 turns and an outside diameter between 1.4 mm and 2.0 mm, so that the halogen incandescent lamp according to the invention, despite the comparatively long wire used to produce the incandescent filament, has a spatially compact single winding Has filament. The diameter of the wire used for the production of incandescent filaments is advantageously between 0, 11 mm and 0.14 mm, on the one hand to adapt the filament resistance to the desired power consumption of the halogen incandescent lamp according to the invention and on the other hand to enable a spatially compact single filament as an incandescent filament.
DI. Beschreibung der bevorzugten Ausführungsbeispiele Nachstehend wird die Erfindung anhand von zwei bevorzugten Ausführungsbeispielen näher erläutert. Es zeigen:DI. DESCRIPTION OF THE PREFERRED EXEMPLARY EMBODIMENTS The invention is explained in more detail below on the basis of two preferred exemplary embodiments. Show it:
Figur 1 Eine schematische Seitenansicht einer erfindungsgemäßen Halogenglühlampe für einen Kraftfahrzeugscheinwerfer mit einer einfach gewendelten, axial angeordneten GlühwendelFigure 1 is a schematic side view of a halogen lamp according to the invention for a motor vehicle headlight with a single helix, axially arranged filament
Figur 2 Eine Draufsicht auf eine Axialwendel gemäß des ersten Ausführungsbeispiels der Erfindung in schematischer DarstellungFigure 2 is a plan view of an axial coil according to the first embodiment of the invention in a schematic representation
Figur 3 Eine Draufsicht auf eine Transversalwendel gemäß des zweiten Ausführungsbeispiels der Erfindung in schematischer DarstellungFigure 3 is a plan view of a transverse spiral according to the second embodiment of the invention in a schematic representation
Figur 4 Eine Draufsicht auf ein Einfachgewickel gemäß eines dritten Ausfüh- rungsbeispiels der Erfindung in schematischer DarstellungFIG. 4 shows a schematic top view of a single winding according to a third exemplary embodiment of the invention
Die Halogenglühlampe gemäß des ersten Ausführungsbeispiels besitzt ein im wesentlichen zylindrisches Lampengefäß 1 mit einem gasdicht verschlossenen Quetsch- fuß 2, durch den zwei Stromzuführungsdrähte 3, 4 für die innerhalb des Lampengefäßes 1 in axialer Richtung angeordnete Glühwendel 5 hindurchgeführt sind. Der Quetschfuß 2 ist im Lampensockel 6, der mit zwei Kontaktfahnen 7 zur Spannungsversorgung der Glühwendel 5 ausgestattet ist, fixiert. Figur 1 zeigt schematisch den Aufbau dieser Halogenglühlampe. Es handelt sich hierbei um eine Halogenglühlampe für einen Kraftfahrzeugscheinwerfer mit einer Leistungsaufnahme von ungefähr 70 Watt, die zum Betrieb an einer Bordnetz-Nennspannung von 24 Volt vorgesehen ist.The halogen incandescent lamp according to the first exemplary embodiment has an essentially cylindrical lamp vessel 1 with a gas-tightly closed squeeze foot 2, through which two power supply wires 3, 4 are passed for the filament 5 arranged inside the lamp vessel 1 in the axial direction. The pinch foot 2 is fixed in the lamp base 6, which is equipped with two contact lugs 7 for supplying voltage to the incandescent filament 5. Figure 1 shows schematically the structure of this halogen lamp. It is a halogen incandescent lamp for a motor vehicle headlight with a power consumption of approximately 70 watts, which is intended for operation on a nominal electrical system voltage of 24 volts.
Gemäß des ersten Ausführungsbeispiels der Erfindung ist die Glühwendel 5 als Ein- fachgewickel ausgebildet, das eine Länge von ungefähr 5,6 mm ± 0,2 mm, einen Außendurchmesser von ungefähr 1,7 mm und 26 Windungen besitzt. Die vorgenannten Angaben beziehen sich auf den für die Lichtemission verantwortlichen, gewickelten Bereich der Glühwendel 5, ohne Berücksichtigung der ungewendelten Enden 5a der Glüh wendel 5. Der zur Herstellung des Einfachge wickeis 5 verwendete Wendel- draht aus Wolfram weist einen Durchmesser von 0,13 mm auf. Die wirksame Länge des Wendeldrahtes, das heißt, die Länge des den gewickelten Bereich des Einfachgewickeis 5 bildenden Wendeldrahtes beträgt ungefähr 124,8 mm. Die ungewendelten Enden 5 a der Glühwendel 5 sind zur Verbesserung der Erschütterungsfestigkeit und zur Abstützung der Glühwendel 5 jeweils mit einer Überzugswendel 8 versehen. Die Überzugs wendein 8 umschließen das jeweilige ungewendelte Ende 5 a mit Klemmsitz. Sie erstrecken sich vorzugsweise über den größten Teil des jeweiligen ungewendelten Endes 5 a. In Figur 2 ist der Aufbau der Glühwendel 5 gemäß des ersten Ausführungsbeispiels schematisch dargestellt.According to the first exemplary embodiment of the invention, the incandescent filament 5 is designed as a single winding which has a length of approximately 5.6 mm ± 0.2 mm, an outer diameter of approximately 1.7 mm and 26 turns. The above information relates to the wound area of the incandescent filament 5 which is responsible for the light emission, without taking into account the uncoiled ends 5a of the incandescent filament 5. The tungsten filament wire used for producing the simple thread 5 has a diameter of 0.13 mm on. The effective length of the helix wire, that is to say the length of the helix wire forming the wound region of the single-thread 5 is approximately 124.8 mm. The uncoiled ends 5 a of the filament 5 are each provided with a coating filament 8 to improve the resistance to vibrations and to support the filament 5. The coating wendein 8 enclose the respective uncoiled end 5 a with a press fit. They preferably extend over most of the respective uncoiled end 5 a. In Figure 2, the structure of the filament 5 according to the first embodiment is shown schematically.
Gemäß des zweiten Ausführungsbeispiels der Erfindung ist die Glüh wendel 5' als transversales, das heißt, senkrecht zur Lampenachse angeordnetes Einfachgewickel ausgebildet, das eine Länge von ungefähr 5,2 mm ± 0,2 mm, einen Außendurchmesser von ungefähr 1,9 mm und 23 Windungen besitzt. Die vorgenannten Angaben beziehen sich auf den für die Lichtemission verantwortlichen, gewickelten Bereich der Glühwendel 5', ohne Berücksichtigung der ungewendelten Enden 5a' der Glüh- wendel 5'. Der zur Herstellung des Einfachgewickeis 5' verwendete Wendeldraht aus Wolfram weist einen Durchmesser von 0,13 mm auf. Die wirksame Länge des Wendeldrahtes, das heißt, die Länge des den gewickelten Bereich des Einfachgewickeis 5' bildenden Wendeldrahtes beträgt ungefähr 124,9 mm. Die ungewendelten Enden 5a' der Glühwendel 5' sind zur Verbesserung der Erschütterungsfestigkeit und zur Abstützung der Glühwendel 5' jeweils mit einer Überzugswendel 8' versehen. Die Überzugswendeln 8' umschließen das jeweilige ungewendelte Ende 5a' mit Klemmsitz. Sie erstrecken sich vorzugsweise über den größten Teil des jeweiligen ungewendelten Endes 5a'. In Figur 3 ist der Aufbau der Glühwendel 5' gemäß des zweiten Ausführungsbeispiels schematisch dargestellt.According to the second embodiment of the invention, the incandescent filament 5 'is designed as a transverse, that is to say perpendicularly to the lamp axis, single coil which has a length of approximately 5.2 mm ± 0.2 mm, an outer diameter of approximately 1.9 mm and 23 Has turns. The aforementioned information relates to the wound area of the filament 5 'responsible for the light emission, without taking into account the uncoiled ends 5a' of the filament 5 '. The spiral wire used to produce the single-thread ice 5 ' made of tungsten has a diameter of 0.13 mm. The effective length of the helix wire, that is to say the length of the helix wire forming the wound area of the single-thread 5 ', is approximately 124.9 mm. The uncoiled ends 5a 'of the filament 5' are each provided with a coating filament 8 'to improve the resistance to vibrations and to support the filament 5'. The coating coils 8 'enclose the respective uncoiled end 5a' with a clamp fit. They preferably extend over most of the respective uncoiled end 5a '. In Figure 3, the structure of the filament 5 'according to the second embodiment is shown schematically.
Beide oben näher beschriebenen Einfachwendeln 5, 5' sind aufgrund ihrer Abmessungen und Geometrie an eine Betriebsspannung von ungefähr 24 Volt und eine Leistungsaufnahme von ungefähr 70 Watt angepaßt.Both single coils 5, 5 'described in more detail above are adapted due to their dimensions and geometry to an operating voltage of approximately 24 volts and a power consumption of approximately 70 watts.
Die Einfachwendel 5" gemäß des dritten, in Figur 4 abgebildete Ausführungsbeispiels unterscheidet sich von den Einfachwendeln der beiden oben erläuterten Aus- führungsbeispiele nur dadurch, dass die ungewendelten Enden 5a" jeweils von einem aus Molybdänband gefertigten Rohr 8" mit Klemmsitz umgeben sind. Die Molyb- dänröhrchen 8" erstrecken sich jeweils über den größten Teil des entsprechenden ungewendelten Endes 5a". Außerdem erleichtem die Molybdänröhrchen 8" das Verschweißen der Wendelenden mit den ebenfalls aus Molybdän bestehenden Stromzu- führungsdrähten 3, 4.The single helix 5 "according to the third exemplary embodiment shown in FIG. 4 differs from the single helices of the two exemplary embodiments explained above only in that the uncoiled ends 5a" are each surrounded by a tube 8 "made of molybdenum tape with a clamp fit. The molybdenum - Danube tubes 8 "each extend over the major part of the corresponding uncoiled end 5a". In addition, the molybdenum tubes 8 "facilitate the welding of the helix ends to the current supply wires 3, 4, which are also made of molybdenum.
Die Erfindung beschränkt sich nicht auf die oben näher erläuterten Ausführungsbeispiele. Die Überzugswendeln 8, 8' bzw. Molybdänröhrchen 8" sind nur erforderlich, wenn besonders hohe Anforderungen an die Erschütterungsfestigkeit gestellt werden. Anstelle von Überzugs wendein 8, 8' bzw. Molybdänröhrchen 8" können in diesem Fall aber auch andere Stützmittel für die Glühwendel verwendet werden. Beispielsweise können anstelle von Überzugswendeln 8, 8' bzw. Molybdänröhrchen 8" die Stromzuführungsdrähte 3, 4 entsprechend dick und die damit verbundenen, ungewendelten Enden 5a, 5a' der Glüh wendel 5, 5' entsprechend kurz ausgebildet sein, so daß die Stromzuführungsdrähte 3, 4 bereits eine hohe Erschütterungsfestigkeit ge- währleisten. The invention is not limited to the exemplary embodiments explained in more detail above. The coating coils 8, 8 'or molybdenum tubes 8 "are only required if particularly high demands are placed on the vibration resistance. Instead of coating coils 8, 8' or molybdenum tubes 8", other support means for the incandescent filament can also be used in this case become. For example, instead of coating coils 8, 8 'or molybdenum tubes 8 ", the power supply wires 3, 4 can be made correspondingly thick and the associated uncoiled ends 5a, 5a' of the incandescent coils 5, 5 'can be made correspondingly short, so that the power supply wires 3, 4 already guarantee high resistance to vibrations.

Claims

Patentansprüche claims
1. Halogenglühlampe für Kraftfahrzeugscheinwerfer, die eine elektrische Leistungsaufnahme zwischen 50 Watt und 100 Watt aufweist und mindestens eine Glühwendel (5, 5', 5") besitzt, dadurch gekennzeichnet, daß die mindestens eine Glühwendel (5, 5', 5") als Einfachgewickel ausgebildet ist, dessen Maße und/oder Geometrie auf eine1. Halogen light bulb for motor vehicle headlights, which has an electrical power consumption between 50 watts and 100 watts and has at least one filament (5, 5 ', 5 "), characterized in that the at least one filament (5, 5', 5") as Single winding is formed, the dimensions and / or geometry of one
Betriebsspannung von mindestens 20 Volt abgestimmt sind, wobei die Länge des Einfachgewickeis einen Wert im Bereich von 4,0 mm bis 6,5 mm besitzt.Operating voltage of at least 20 volts are matched, the length of the single Gewißis has a value in the range of 4.0 mm to 6.5 mm.
2. Halogenglühlampe nach Anspruch 1, dadurch gekennzeichnet, daß das Einfachgewickel (5, 5\ 5") mindestens 20 Windungen aufweist.2. Halogen incandescent lamp according to claim 1, characterized in that the single winding (5, 5 \ 5 ") has at least 20 turns.
3. Halogenglühlampe nach Anspruch 1, dadurch gekennzeichnet, daß der Drahtdurchmesser des Einfachgewickeis (5, 5', 5") zwischen 0,11 mm und 0,14 mm beträgt.3. Halogen incandescent lamp according to claim 1, characterized in that the wire diameter of the single thread (5, 5 ', 5 ") is between 0.11 mm and 0.14 mm.
4. Halogenglühlampe nach Anspruch 1, dadurch gekennzeichnet, daß der Außendurchmesser des Einfachgewickeis (5, 5', 5") zwischen 1,4 mm und 2,0 mm beträgt.4. Halogen incandescent lamp according to claim 1, characterized in that the outer diameter of the single weight (5, 5 ', 5 ") is between 1.4 mm and 2.0 mm.
5. Halogenglühlampe nach Anspruch 1, dadurch gekennzeichnet, daß die Enden (5a, 5a', 5a") des Einfachgewickeis (5, 5', 5") mit Stützmitteln (8, 8', 8") versehen sind. 5. Halogen incandescent lamp according to claim 1, characterized in that the ends (5a, 5a ', 5a ") of the single thread (5, 5', 5") are provided with support means (8, 8 ', 8 ").
EP01956283A 2000-07-19 2001-06-22 Halogen filament lamp Expired - Lifetime EP1196941B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10035401 2000-07-19
DE10035401A DE10035401B4 (en) 2000-07-19 2000-07-19 Halogen bulb for motor vehicle headlights
PCT/DE2001/002308 WO2002007188A1 (en) 2000-07-19 2001-06-22 Halogen filament lamp

Publications (2)

Publication Number Publication Date
EP1196941A1 true EP1196941A1 (en) 2002-04-17
EP1196941B1 EP1196941B1 (en) 2007-11-07

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EP01956283A Expired - Lifetime EP1196941B1 (en) 2000-07-19 2001-06-22 Halogen filament lamp

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US (1) US20020135301A1 (en)
EP (1) EP1196941B1 (en)
JP (1) JP4989838B2 (en)
KR (1) KR100855401B1 (en)
CN (1) CN1220244C (en)
AR (1) AR029735A1 (en)
AT (1) ATE377840T1 (en)
BR (1) BR0106983A (en)
CA (1) CA2385282C (en)
DE (2) DE10035401B4 (en)
ES (1) ES2292606T3 (en)
HU (1) HU226846B1 (en)
TW (1) TW543078B (en)
WO (1) WO2002007188A1 (en)

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EP2465134B1 (en) * 2009-08-14 2016-02-17 OSRAM GmbH Halogen bulb for vehicle headlights

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DE102006052950A1 (en) 2006-11-09 2008-05-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH halogen bulb
DE102006052951A1 (en) * 2006-11-09 2008-05-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH halogen bulb
DE102007008147A1 (en) 2007-02-19 2008-08-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH halogen bulb
DE102007029372A1 (en) * 2007-06-26 2009-01-08 Osram Gesellschaft mit beschränkter Haftung Helix and method of making a helix
DE102012202081A1 (en) 2012-02-13 2013-08-14 Osram Gmbh FOIL FOR ELECTRIC LAMPS AND ELECTRIC LAMPS, AND METHOD FOR PRODUCING A GLOWER

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CN1220244C (en) 2005-09-21
KR20020047176A (en) 2002-06-21
CA2385282A1 (en) 2002-01-24
US20020135301A1 (en) 2002-09-26
JP2004504697A (en) 2004-02-12
HU226846B1 (en) 2009-12-28
TW543078B (en) 2003-07-21
CA2385282C (en) 2009-12-29
DE10035401A1 (en) 2002-02-07
HUP0203337A2 (en) 2003-02-28
BR0106983A (en) 2002-05-14
CN1386298A (en) 2002-12-18
DE10035401B4 (en) 2006-01-26
WO2002007188A1 (en) 2002-01-24
AR029735A1 (en) 2003-07-10
EP1196941B1 (en) 2007-11-07
ATE377840T1 (en) 2007-11-15
JP4989838B2 (en) 2012-08-01
ES2292606T3 (en) 2008-03-16
DE50113226D1 (en) 2007-12-20
KR100855401B1 (en) 2008-08-29

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