EP0751550B1 - Method for assembling an electric incandescent lamp and incandescent lamp fabricated according to said method - Google Patents

Method for assembling an electric incandescent lamp and incandescent lamp fabricated according to said method Download PDF

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Publication number
EP0751550B1
EP0751550B1 EP96109538A EP96109538A EP0751550B1 EP 0751550 B1 EP0751550 B1 EP 0751550B1 EP 96109538 A EP96109538 A EP 96109538A EP 96109538 A EP96109538 A EP 96109538A EP 0751550 B1 EP0751550 B1 EP 0751550B1
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EP
European Patent Office
Prior art keywords
frame
filament
half frame
supporting
incandescent
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EP96109538A
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German (de)
French (fr)
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EP0751550A1 (en
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Andreas Krinke
Herbert Kugler
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Osram GmbH
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Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/06—Attaching of incandescent bodies to mount
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body

Definitions

  • the invention relates to a method for producing an electrical Incandescent lamp according to the preamble of claim 1 and one after electric light bulb manufactured according to this manufacturing process Claim 8.
  • the patent US 4,578,616 describes a halogen lamp with a Filament, which is designed as a planar filament and in a frame-like Frame is fixed inside the lamp bulb.
  • the frame-like The frame consists essentially of two with helical holders Quartz bridges, which are made by two support struts melted into the quartz bridges are interconnected. The coiled filament ends are threaded on the two support struts and the uncoiled, non-luminous Filament sections are in the hook-shaped filament holder mounted.
  • the two frame halves according to the invention each have one of one existing electrically insulating material, provided with spiral holders Bridge on which several support struts are attached.
  • the aforementioned Bridges are preferably made of quartz glass and the support struts are made of a melting metal.
  • Each of the two frame halves advantageously has two support struts of different lengths, which in the corresponding Are melted.
  • the coiled filament ends are advantageously on the long support struts of the frame halves threaded on.
  • To connect the two frame halves are advantageously the free end of the long support struts with the free ends of the short support struts welded.
  • the manufacturing method according to the invention is in particular electrical Incandescent lamps with planar filaments that are in a frame-like Frame can be held, applicable.
  • Such incandescent lamps are, for example to optical images in projectors or similar devices used.
  • the invention shown schematically in Figure 4 Incandescent lamp is a halogen incandescent lamp with a nominal voltage of 230 V. and an electrical power consumption of approx. 500 W.
  • This lamp has a gas-tight lamp bulb 1 made of quartz glass has a squeezing foot 1a at one end. There are two in the squeezing foot 1a Molybdenum foils 2, 3 melted gas-tight.
  • molybdenum foils 2, 3 are on the one hand electrically conductive with an inside the lamp bulb 1 arranged frame that for mounting and electrical connection the planar filament 11 is used, and on the other hand each with one the squeezing foot 1a projecting power supply 5, 6 connected. After the base of the lamp is inserted into the pinch foot 1 a with contact pins equipped base (not shown).
  • the frame-like frame for the filament 11 consists of two prefabricated identical halves 4a, 4b.
  • the first frame half 4a comprises a web 7a made of quartz glass, in which a long 8a and a short 9a support strut Molybdenum and four hook-shaped coil holders 10a also made of molybdenum have melted down.
  • the second half of the frame is, completely analogous, from the quartz glass web 7b, in which also a long 8b and a short 9b Support strut made of molybdenum and four hook-shaped ones made of molybdenum Helix holder 10b are melted down.
  • the two frame halves 4a, 4b are by a welded connection between the support struts 8a, 9b or 8b, 9a held together.
  • the filament 11 is meandering and has several single coiled sections through uncoiled sections are separated from each other.
  • the uncoiled sections of the Incandescent filaments 11 are suspended in the filament holders 10a, 10b.
  • the filament 11 is with its simply coiled ends on the long support struts 8a, 8b attached.
  • FIGS. 1 and 2 For the assembly of the filament 11 in the frame-like frame, two identical frame halves 4a, 4b.
  • the construction of such a frame half 4a is shown schematically in FIGS. 1 and 2.
  • the frame half 4a has a web 7a made of quartz glass, into which a long 8a and a short 9a support strut made of molybdenum and four hook-shaped spiral holders 10a are melted from molybdenum.
  • the four coil holders 10a are arranged equidistantly next to one another between the support struts 8a, 9a. However, the distance of the long support strut 8a to that closest to it Helix holder 10a is greater than the distance between the short support strut 9a the coil holder 10a closest to it.
  • the free ends 13a, 14a of the Support struts 8a, 9a are leveled.
  • the web 7a consists of two quartz glass rods 7a ', 7a ", between which the support struts 8a, 9a and the coil holder 10a are arranged.
  • the frame halves 4a, 4b are fully mechanized in a girder squeezer manufactured.
  • two prefabricated frame halves 4a, 4b are made in this way placed in a fixing device (not shown) that the webs 7a, 7b run parallel and the free end of the long support strut 8a of the first Frame half 4a the free end of the short support strut 9b of the second frame half 4b and the free end of the short support strut 9a of the first half of the frame 4a the free end of the long support strut 8b of the second frame half 4b is facing.
  • the also prefabricated meandering Filament 11 inserted into the fixing device.
  • the ends of the support struts protruding from the upper web 7a 8a, 9a are shortened.
  • the projecting ends of the lower web 7b Support struts 8b, 9b are each welded to a molybdenum foil 2, 3.
  • the two molybdenum foils 2, 3 are welded by a U-shaped Molybdenum wire 15 connected together.
  • the resulting Frame of the lamp is shown in Figure 3. It is pre-made Lamp bulb 1 inserted and aligned. The lamp bulb 1 will then squeezed tightly in a known manner over the molybdenum foils 2, 3 and, usually via a pump handle, evacuated and with the inert gas / halogen mixture filled.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Resistance Heating (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Herstellung einer elektrischen Glühlampe gemäß dem Oberbegriff des Patentanspruchs 1 sowie eine nach diesem Herstellungsverfahren gefertigte elektrische Glühlampe, nach Anspruch 8.The invention relates to a method for producing an electrical Incandescent lamp according to the preamble of claim 1 and one after electric light bulb manufactured according to this manufacturing process Claim 8.

Die Patentschrift US 4,578,616 beschreibt eine Halogenglühlampe mit einer Glühwendel, die als planarer Leuchtkörper ausgebildet und in einem rahmenartigen Gestell innerhalb des Lampenkolbens fixiert ist. Das rahmenartige Gestell besteht im wesentlichen aus zwei mit Wendelhaltern versehenen Quarzbrücken, die durch zwei in die Quarzbrücken eingeschmolzene Stützstreben miteinander verbunden sind. Die gewendelten Glühwendelenden sind auf die beiden Stützstreben aufgefädelt und die ungewendelten, nichtleuchtenden Glühwendelabschnitte sind in die hakenförmigen Wendelhalter eingehängt.The patent US 4,578,616 describes a halogen lamp with a Filament, which is designed as a planar filament and in a frame-like Frame is fixed inside the lamp bulb. The frame-like The frame consists essentially of two with helical holders Quartz bridges, which are made by two support struts melted into the quartz bridges are interconnected. The coiled filament ends are threaded on the two support struts and the uncoiled, non-luminous Filament sections are in the hook-shaped filament holder mounted.

Die im vorgenannten Patent beschriebene Halterung der Glühwendel erfordert, daß bei der Wendelmontage das Auffädeln der Glühwendelenden auf die beiden Stützstreben vor dem Einschmelzen der Stützstreben in die Quarzbrücken erfolgen muß. Diese Verfahrensweise hat aber den Nachteil, daß die Glühwendel beim Einschmelzen der Stützstreben in die Quarzbrükken stark erhitzt wird, so daß unerwünschte Oxidationen an der Glühwendel auftreten können, weil die Quarzbrücken bei diesem Fertigungsschritt auf eine Temperatur von mehr als 2000 °C erwärmt werden müssen. Oxidationen an der Glühwendel können während des Lampenbetriebes zu Belägen auf dem Lampenkolben führen und die Lebensdauer der Lampe reduzieren.The holder of the filament described in the aforementioned patent requires that the filament mounting on the filament ends the two support struts before the support struts melt into the Quartz bridges must be made. However, this procedure has the disadvantage that the incandescent filament when the support struts melted into the quartz bridges is strongly heated, so that undesirable oxidation on the filament can occur because the quartz bridges in this manufacturing step must be heated to a temperature of more than 2000 ° C. Oxidations on the incandescent filament can become deposits during lamp operation on the lamp bulb and reduce the lamp life.

Es ist die Aufgabe der Erfindung, ein Verfahren zur Herstellung einer elektrischen Glühlampe mit einer verbesserten Wendelmontage bereitzustellen, das insbesondere die vorgenannten Nachteile, die das Fertigungsverfahren gemäß des Standes der Technik aufweist, vermeidet sowie eine elektrische Glühlampe gemäß des erfindungsgemäßen Herstellungsverfahrens bereitzustellen.It is the object of the invention to provide a method for producing an electrical To provide an incandescent lamp with an improved filament mounting, which in particular the aforementioned disadvantages that the manufacturing process according to the prior art, avoids and an electrical To provide incandescent lamp according to the manufacturing method according to the invention.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausführungen der Erfindung sind in den Unteransprüchen beschrieben.This object is achieved by the characterizing features of claim 1 solved. Particularly advantageous versions of the Invention are described in the subclaims.

Das erfindungsgemäße Herstellungsverfahren für elektrische Glühlampen zeichnet sich insbesondere durch eine verbesserte Wendelmontage aus. Das rahmenartige Gestell, in dem die Glühwendel gehaltert wird, besteht erfindungsgemäß aus zwei im wesentlichen identischen Gestellhälften, die bereits vor der Wendelmontage in separaten Arbeitsgängen vorgefertigt wurden. Diese beiden Gestellhälften werden als vorgefertigte Lampenteile, zusammen mit der Glühwendel, zur Wendelmontage in eine Fixiervorrichtung eingespannt. Der Aufbau des rahmenartigen Gestells aus zwei im wesentlichen identischen Hälften ermöglicht eine vollmechanisierte Fertigung der Gestellhälften, vereinfacht die Wendelmontage und reduziert die Herstellungskosten. Die Fertigung der Gestellhälften in separaten Arbeitsgängen vor der Wendelmontage hat den Vorteil, daß die Glühwendel während der Herstellung des Gestells, insbesondere während des Einschmelzens der Stützstreben in die Quarzstege, keiner hohen thermischen Belastung, die Oxidationen an der Glühwendel verursachen würde, ausgesetzt ist.The manufacturing method for electric light bulbs according to the invention is particularly characterized by an improved helix assembly. The frame-like frame in which the filament is held, according to the invention from two essentially identical frame halves that already were prefabricated in separate operations before the helix assembly. These two frame halves are put together as prefabricated lamp parts with the incandescent filament, for filament mounting in a fixing device clamped. The structure of the frame-like frame of two essentially identical halves enables fully mechanized manufacture of the frame halves, simplified the helix assembly and reduces the manufacturing costs. Production of the frame halves in separate operations before the helix assembly has the advantage that the filament during the manufacture of the frame, especially during the melting of the support struts in the Quartz bars, no high thermal stress, the oxidations on the Filament would be exposed.

Die beiden erfindungsgemäßen Gestellhälften weisen jeweils einen aus einem elektrisch isolierenden Material bestehenden, mit Wendelhaltern versehenen Steg auf, an den mehrere Stützstreben befestigt sind. Die vorgenannten Stege bestehen vorzugsweise aus Quarzglas und die Stützstreben aus einem hochschmelzenden Metall. Jede der beiden Gestellhälften weist vorteilhafterweise zwei unterschiedlich lange Stützstreben auf, die in den entsprechenden Steg eingeschmolzen sind. Die gewendelten Glühwendelenden werden vorteilhafterweise auf die langen Stützstreben der Gestellhälften aufgefädelt. Zum Verbinden der beiden Gestellhälften werden vorteilhafterweise die freien Ende der langen Stützstreben mit den freien Enden der kurzen Stützstreben verschweißt. Dadurch wird gewährleistet, daß die Glühwendelenden außerhalb der Stützstrebenverbindung befestigt sind, und damit sichergestellt, daß die Stützstrebenverschweißung durch das Befestigen der Glühwendelenden an den Stützstreben nicht beschädigt wird. Die freien Enden der Stützstreben sind vorteilhafterweise im Verschweißungsbereich planiert.The two frame halves according to the invention each have one of one existing electrically insulating material, provided with spiral holders Bridge on which several support struts are attached. The aforementioned Bridges are preferably made of quartz glass and the support struts are made of a melting metal. Each of the two frame halves advantageously has two support struts of different lengths, which in the corresponding Are melted. The coiled filament ends are advantageously on the long support struts of the frame halves threaded on. To connect the two frame halves are advantageously the free end of the long support struts with the free ends of the short support struts welded. This ensures that the Filament ends are attached outside the support strut connection, and thus ensures that the support strut weld by fastening the filament ends on the support struts are not damaged. The free ends of the support struts are advantageously in the welding area planed.

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

Figur 1
eine Draufsicht auf eine vorgefertigte Gestellhälfte gemäß des bevorzugten Ausführungsbeispiels
Figur 2
eine Seitenansicht der in Figur 1 abgebildeten Gestellhälfte
Figur 3
eine Draufsicht auf das komplette Gestell nach der Wendelmontage, einschließlich Einschmelzungsfolien und Stromzuführungen
Figur 4
eine schematische Darstellung einer entsprechend dem erfindungsgemäßen Verfahren hergestellte elektrische Glühlampe (Sockel ist nicht abgebildet)
The invention is explained in more detail below on the basis of a preferred exemplary embodiment. Show it:
Figure 1
a plan view of a prefabricated frame half according to the preferred embodiment
Figure 2
a side view of the frame half shown in Figure 1
Figure 3
a plan view of the complete frame after the helix assembly, including sealing foils and power supplies
Figure 4
a schematic representation of an electric incandescent lamp produced according to the inventive method (base is not shown)

Das erfindungsgemäße Herstellungsverfahren ist insbesondere auf elektrische Glühlampen mit planaren Glühwendeln, die in einem rahmenartigen Gestell gehaltert werden, anwendbar. Derartige Glühlampen werden beispielsweise zu optischen Abbildungen in Projektoren oder ähnlichen Geräten verwendet. Die in Figur 4 schematisch dargestellte erfindungsgemäße Glühlampe ist eine Halogenglühlampe mit einer Nennspannung von 230 V und einer elektrischen Leistungsaufnahme von ca. 500 W. Diese Lampe besitzt einen gasdicht verschlossenen Lampenkolben 1 aus Quarzglas, der an einem Ende einen Quetschfuß 1a aufweist. In dem Quetschfuß 1a sind zwei Molybdänfolien 2, 3 gasdicht eingeschmolzen. Diese Molybdänfolien 2, 3 sind einerseits elektrisch leitend mit einem innerhalb des Lampenkolbens 1 angeordneten Gestell, das zur Halterung und zum elektrischen Anschluß der planaren Glühwendel 11 dient, und andererseits jeweils mit einer aus dem Quetschfuß 1a herausragenden Stromzuführung 5, 6 verbunden. Nach dem Aufsockeln der Lampe steckt der Quetschfuß 1a in einem mit Kontaktstiften ausgestatteten Sockel (nicht abgebildet). The manufacturing method according to the invention is in particular electrical Incandescent lamps with planar filaments that are in a frame-like Frame can be held, applicable. Such incandescent lamps are, for example to optical images in projectors or similar devices used. The invention shown schematically in Figure 4 Incandescent lamp is a halogen incandescent lamp with a nominal voltage of 230 V. and an electrical power consumption of approx. 500 W. This lamp has a gas-tight lamp bulb 1 made of quartz glass has a squeezing foot 1a at one end. There are two in the squeezing foot 1a Molybdenum foils 2, 3 melted gas-tight. These molybdenum foils 2, 3 are on the one hand electrically conductive with an inside the lamp bulb 1 arranged frame that for mounting and electrical connection the planar filament 11 is used, and on the other hand each with one the squeezing foot 1a projecting power supply 5, 6 connected. After the base of the lamp is inserted into the pinch foot 1 a with contact pins equipped base (not shown).

Das rahmenartige Gestell für die Glühwendel 11 besteht aus zwei vorgefertigten identischen Hälften 4a, 4b. Die erste Gestellhälfte 4a umfaßt einen Steg 7a aus Quarzglas, in den eine lange 8a und eine kurze 9a Stützstrebe aus Molybdän sowie vier hakenförmige Wendelhalter 10a ebenfalls aus Molybdän eingeschmolzen sind. Die zweite Gestellhälfte besteht, völlig analog, aus dem Quarzglassteg 7b, in dem ebenfalls eine lange 8b und eine kurze 9b Stützstrebe aus Molybdän sowie vier aus Molybdän gefertigte, hakenförmige Wendelhalter 10b eingeschmolzen sind. Die beiden Gestellhälften 4a, 4b werden durch eine Schweißverbindung zwischen den Stützstreben 8a, 9b bzw. 8b, 9a zusammengehalten. Die Glühwendel 11 ist mäanderförmig und besitzt mehrere einfach gewendelte Abschnitte, die durch ungewendelte Abschnitte voneinander getrennt sind. Die ungewendelten Abschnitte der Glühwendel 11 sind in die Wendelhalter 10a, 10b eingehängt. Die Glühwendel 11 ist mit ihren einfach gewendelten Enden an den langen Stützstreben 8a, 8b befestigt.The frame-like frame for the filament 11 consists of two prefabricated identical halves 4a, 4b. The first frame half 4a comprises a web 7a made of quartz glass, in which a long 8a and a short 9a support strut Molybdenum and four hook-shaped coil holders 10a also made of molybdenum have melted down. The second half of the frame is, completely analogous, from the quartz glass web 7b, in which also a long 8b and a short 9b Support strut made of molybdenum and four hook-shaped ones made of molybdenum Helix holder 10b are melted down. The two frame halves 4a, 4b are by a welded connection between the support struts 8a, 9b or 8b, 9a held together. The filament 11 is meandering and has several single coiled sections through uncoiled sections are separated from each other. The uncoiled sections of the Incandescent filaments 11 are suspended in the filament holders 10a, 10b. The filament 11 is with its simply coiled ends on the long support struts 8a, 8b attached.

Das erfindungsgemäße Verfahren zur Herstellung einer elektrischen Glühlampe wird nun anhand der Figuren 1 bis 3 näher erläutert. Die Erfindung betrifft die Wendelmontage. Die nicht zur Wendelmontage gehörenden Fertigungsabläufe sind wohlbekannter Stand der Technik und werden daher nur beschrieben, wenn sie im Zusammenhang mit der erfindungsgemäßen Wendelmontage stehen und zum Verständnis der Erfindung von Bedeutung sind.The inventive method for producing an electric light bulb will now be explained with reference to Figures 1 to 3. The invention concerns the helix assembly. The manufacturing processes that are not part of the spiral assembly are well known in the art and are therefore only described if in connection with the invention Helical assembly and important for understanding the invention are.

Für die Montage der Glühwendel 11 im rahmenartigen Gestell werden zwei identische Gestellhälften 4a, 4b hergestellt. Der Aufbau einer derartigen Gestellhälfte 4a ist in den Figuren 1 und 2 schematisch dargestellt. Die Gestellhälfte 4a weist einen Steg 7a aus Quarzglas, in die eine lange 8a und eine kurze 9a Stützstrebe aus Molybdän sowie vier hakenförmige Wendelhalter 10a aus Molybdän eingeschmolzen sind. Die vier Wendelhalter 10a sind zwischen den Stützstreben 8a, 9a, äquidistant nebeneinander angeordnet. Allerdings ist der Abstand der langen Stützstrebe 8a zu dem ihr nächstgelegenen Wendelhalter 10a größer als der Abstand der kurzen Stützstrebe 9a zu dem ihr nächstgelegenen Wendelhalter 10a. Die freien Enden 13a, 14a der Stützstreben 8a, 9a sind planiert. Außerdem besitzen die Stützstreben 8a, 9a und die Wendelhalter 10a im Einschmelzungsbereich Anflachungen 12, die als Verdrehsicherung dienen. Der Steg 7a besteht aus zwei Quarzglasstäben 7a', 7a", zwischen denen die Stützstreben 8a, 9a und die Wendelhalter 10a angeordnet sind. Zum Einschmelzen der Stützstreben 8a, 9a und der Wendelhalter 10a werden die Quarzglasstäbe 7a', 7a" auf ihre Erweichungstemperatur erhitzt und anschließend zusammengepreßt. Nach dem Erkalten sind die Quarzglasstäbe 7a', 7a" miteinander verschmolzen und bilden den Steg 7a mit den darin eingeschmolzenen Stützstreben 8a, 9a und Wendelhaltern 10a. Die Gestellhälften 4a, 4b werden vollmechanisiert in einem Balkengestellquetschrundläufer hergestellt.For the assembly of the filament 11 in the frame-like frame, two identical frame halves 4a, 4b. The construction of such a frame half 4a is shown schematically in FIGS. 1 and 2. The frame half 4a has a web 7a made of quartz glass, into which a long 8a and a short 9a support strut made of molybdenum and four hook-shaped spiral holders 10a are melted from molybdenum. The four coil holders 10a are arranged equidistantly next to one another between the support struts 8a, 9a. However, the distance of the long support strut 8a to that closest to it Helix holder 10a is greater than the distance between the short support strut 9a the coil holder 10a closest to it. The free ends 13a, 14a of the Support struts 8a, 9a are leveled. In addition, the support struts 8a, 9a and the coil holders 10a in the melting area, flats 12 which serve as an anti-twist device. The web 7a consists of two quartz glass rods 7a ', 7a ", between which the support struts 8a, 9a and the coil holder 10a are arranged. For melting the support struts 8a, 9a and the spiral holder 10a, the quartz glass rods 7a ', 7a "to their softening temperature heated and then pressed together. After cooling are the quartz glass rods 7a ', 7a "fused together and form the Web 7a with the support struts 8a, 9a and helix holders melted therein 10a. The frame halves 4a, 4b are fully mechanized in a girder squeezer manufactured.

Zur Wendelmontage werden zwei vorgefertigte Gestellhälften 4a, 4b derart in eine Fixiervorrichtung (nicht abgebildet) eingelegt, daß die Stege 7a, 7b parallel verlaufen und das freie Ende der langen Stützstrebe 8a der ersten Gestellhälfte 4a dem freien Ende der kurzen Stützstrebe 9b der zweiten Gestellhälfte 4b sowie das freie Ende der kurzen Stützstrebe 9a der ersten Gestellhälfte 4a dem freien Ende der langen Stützstrebe 8b der zweiten Gestellhälfte 4b zugewandt ist. Außerdem wird die ebenfalls vorgefertigte mäanderförmige Glühwendel 11 in die Fixiervorrichtung eingelegt. Dabei werden die einfach gewendelten Glühwendelenden 11a, 11b auf die langen Stützstreben 8a, 8b der Gestellhälften 4a, 4b aufgefädelt und die ungewendelten Abschnitte der Glühwendel 11 in die Wendelhalter 10a, 10b eingehängt. Danach werden die einfach gewendelten Abschnitte der Glühwendel 11 durch Auseinanderziehen der in der Fixiervorrichtung gelagerten Gestellhälften 4a, 4b, das heißt, durch Vergrößern des Abstandes zwischen den Stegen 7a, 7b, gespannt. Anschließend werden die beiden Gestellhälften 4a, 4b durch Verschweißen der planierten Enden ihrer Stützstreben 8a, 9a, 8b, 9b miteinander verbunden. Dabei wird das planierte Ende 13a der langen Stützstrebe 8a der ersten Gestellhälfte 4a mit dem planierten Ende der kurzen Stützstrebe 9b der zweiten Gestellhälfte 4b und das planierte Ende 14a der kurzen Stützstrebe 9a der ersten Gestellhälfte 4a mit dem planierten Ende der langen Stützstrebe 8b der zweiten Gestellhälfte 4b verschweißt. Hierfür eignen sich Laser- oder auch Widerstandsschweißung. Die auf die langen Stützstreben 8a, 8b aufgefädelten einfach gewendelten Glühwendelenden 11a, 11b werden ausgerichtet, an die Stützstreben 8a, 8b angedrückt und mittels Stromdurchgang, außerhalb der planierten Enden 13a an den Stützstreben 8a, 8b fixiert. Die am oberen Steg 7a überstehenden Enden der Stützstreben 8a, 9a werden gekürzt. Die am unteren Steg 7b überstehenden Enden der Stützstreben 8b, 9b werden jeweils mit einer Molybdänfolie 2, 3 verschweißt. Die beiden Molybdänfolien 2, 3 sind durch einen angeschweißten U-förmigen Molybdändraht 15 miteinander verbunden. Das so entstandene Gestell der Lampe ist in Figur 3 dargestellt. Es wird in den vorgefertigten Lampenkolben 1 eingeführt und ausgerichtet. Der Lampenkolben 1 wird dann in bekannter Weise über den Molybdänfolien 2, 3 dicht gequetscht und, üblicherweise über einen Pumpstengel, evakuiert und mit der Inertgas/Halogenmischung gefüllt. Nach dem gasdichten Einschmelzen der Molybdänfolien 2, 3 im Lampenkolbenfuß 1a wird der U-förmige Molybdändraht 15 aufgetrennt, so daß seine Schenkel nun die Stromzuführungen 5, 6 (Figur 4) bilden. Anschließend erfolgt das Sockeln der Lampe in bekannter Weise.For helical mounting, two prefabricated frame halves 4a, 4b are made in this way placed in a fixing device (not shown) that the webs 7a, 7b run parallel and the free end of the long support strut 8a of the first Frame half 4a the free end of the short support strut 9b of the second frame half 4b and the free end of the short support strut 9a of the first half of the frame 4a the free end of the long support strut 8b of the second frame half 4b is facing. In addition, the also prefabricated meandering Filament 11 inserted into the fixing device. In doing so the simply coiled filament ends 11a, 11b onto the long support struts 8a, 8b of the frame halves 4a, 4b threaded and the uncoiled Sections of the filament 11 hooked into the filament holder 10a, 10b. After that are the simply coiled sections of the filament 11 through Pull apart the frame halves stored in the fixing device 4a, 4b, that is, by increasing the distance between the webs 7a, 7b, excited. Then the two frame halves 4a, 4b through Welding the planed ends of their support struts 8a, 9a, 8b, 9b together connected. The leveled end 13a of the long support strut 8a of the first frame half 4a with the leveled end of the short support strut 9b of the second frame half 4b and the leveled end 14a of the short one Support strut 9a of the first frame half 4a with the leveled end of the long one Support strut 8b of the second frame half 4b welded. Suitable for this laser or resistance welding. The on the long support struts 8a, 8b threaded single-coil filament ends 11a, 11b are aligned, pressed onto the support struts 8a, 8b and by means of Current continuity, outside the leveled ends 13a on the support struts 8a, 8b fixed. The ends of the support struts protruding from the upper web 7a 8a, 9a are shortened. The projecting ends of the lower web 7b Support struts 8b, 9b are each welded to a molybdenum foil 2, 3. The two molybdenum foils 2, 3 are welded by a U-shaped Molybdenum wire 15 connected together. The resulting Frame of the lamp is shown in Figure 3. It is pre-made Lamp bulb 1 inserted and aligned. The lamp bulb 1 will then squeezed tightly in a known manner over the molybdenum foils 2, 3 and, usually via a pump handle, evacuated and with the inert gas / halogen mixture filled. After the gastight melting of the Molybdenum foils 2, 3 in the lamp bulb base 1a become the U-shaped molybdenum wire 15 separated, so that his legs are now the power supplies 5, 6 (Figure 4) form. The lamp is then socketed in a known manner Wise.

Claims (9)

  1. Method for producing an electric incandescent lamp having an incandescent filament (11) and a lamp bulb (1) as well as having a skeleton-like frame (4a, 4b) for fixing the incandescent filament (11) inside the lamp bulb (1), the method including mounting the incandescent filament in a skeleton-like frame (4a, 4b) which is essentially formed by two bars (7a, 7b) which consist of an electrically insulating material, are provided with filament holders (10a, 10b) and are interconnected by means of supporting struts (8a, 8b, 9a, 9b), characterized in that the mounting of the incandescent filament comprises the following steps:
    producing two essentially identical half frames (4a, 4b) each half frame (4a, 4b) having a bar (7a, 7b) which is made from an electrically insulating material, has filament holders (10a, 10b) anchored therein and in each case has two supporting struts (8a, 8b, 9a, 9b) fastened to the bar (7a, 7b),
    fixing the prefabricated half frames (4a, 4b) in a fixing device so that the bars (7a, 7b) are aligned essentially parallel and the free ends of the supporting struts (8a, 8b, 9a, 9b) fastened in the two bars face one another,
    threading the first coiled incandescent filament end (11a) onto the free end of a supporting strut (8a) of the first half frame (4a),
    threading the second coiled incandescent filament end (11b) onto the free end of a supporting strut (8b) of the second half frame (4b),
    suspending the incandescent filament (11) in the filament holders (10a, 10b) and tensioning the incandescent filament (11) in the fixing device by enlarging the spacing between the two bars (7a, 7b),
    welding the supporting struts (8a, 9a) of the first half frame (4a) to the supporting struts (8b, 9b) of the second half frame (4b),
    positioning and fastening the threaded incandescent filament ends (11a, 11b) to the corresponding supporting struts (8a, 8b).
  2. Method according to Claim 1, characterized in that the bars (7a, 7b) consist of quartz glass.
  3. Method according to Claims 1 and 2, characterized in that the supporting struts (8a, 9a; 8b, 9b) belonging to the same half frame (4a, 4b) are sealed into the bar (7a, 7b) belonging to said half frame (4a, 4b).
  4. Method according to Claim 1, characterized in that the half frames (4a, 4b) in each case have two supporting struts (8a, 8b, 9a, 9b) of different lengths consisting of a high-melting metal.
  5. Method according to Claims 1 and 4, characterized in that the first coiled incandescent filament end (11a) is threaded onto the long supporting strut (8a) of the first half frame (4a), and the second coiled incandescent filament end (11b) is threaded onto the long supporting strut (8b) of the second half frame (4b).
  6. Method according to Claims 1, 4 and 3, characterized in that the long supporting strut (8a) of the first half frame (4a) is welded to the short supporting strut (9b) of the second half frame (4b), and the short supporting strut (9a) of the first half frame (4a) is welded to the long supporting strut (8b) of the second half frame (4b).
  7. Method according to Claim 6, characterized in that the ends of the supporting struts (8a, 8b, 9a, 9b) are planished, and the planished ends (13a, 14a) of the supporting struts (8a, 8b, 9a, 9b) are welded to one another.
  8. Electric incandescent lamp produced in accordance with the method according to Claim 1, characterized in that the frame comprises two preformed, essentially identical half frames (4a, 4b), each half frame (4a, 4b) having a bar (7a, 7b) provided with filament holders (10a, 10b) and consisting of an electrically insulating material, and at least two supporting struts (8a, 9a; 8b, 9b) sealed in said bar, and the two half frames (4a, 4b) being connected by welding their supporting struts (8a, 9a; 8b, 9b) to form a skeleton-like frame (4a, 4b).
  9. Electric incandescent lamp produced in accordance with the method according to Claim 1, characterized in that the incandescent filament (11) forms a planar luminous element.
EP96109538A 1995-06-29 1996-06-13 Method for assembling an electric incandescent lamp and incandescent lamp fabricated according to said method Expired - Lifetime EP0751550B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19523146A DE19523146A1 (en) 1995-06-29 1995-06-29 Method of manufacturing an electric light bulb and an electric light bulb made by this method
DE19523146 1995-06-29

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EP0751550A1 EP0751550A1 (en) 1997-01-02
EP0751550B1 true EP0751550B1 (en) 1999-02-03

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EP96109538A Expired - Lifetime EP0751550B1 (en) 1995-06-29 1996-06-13 Method for assembling an electric incandescent lamp and incandescent lamp fabricated according to said method

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US (1) US5680009A (en)
EP (1) EP0751550B1 (en)
JP (1) JPH0917397A (en)
CA (1) CA2178158A1 (en)
DE (2) DE19523146A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007049543A1 (en) 2007-10-16 2009-04-23 Osram Gesellschaft mit beschränkter Haftung Filament lamp i.e. halogen filament lamp, for use in vehicle headlight, has spiral-wound filament fixed over quartz glass holding element, where holding element is partly dyed by adding additives into glass melt

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3555338A (en) * 1967-03-10 1971-01-12 Sylvania Electric Prod Incandescent lamp
US3909653A (en) * 1969-05-02 1975-09-30 Westinghouse Electric Corp Compact electric incandescent lamp having planar filament and improved mount
NL7212381A (en) * 1972-09-13 1974-03-15
NL7400763A (en) * 1974-01-21 1975-07-23 Philips Nv ELECTRIC LIGHT BULB.
US4023060A (en) * 1975-11-28 1977-05-10 Gte Sylvania Incorporated Ruggedized, high power tungsten-halogen lamp
US4145630A (en) * 1977-12-05 1979-03-20 Westinghouse Electric Corp. Halogen-cycle type incandescent lamp
DE3136961A1 (en) * 1981-09-17 1983-03-31 Heinrich 4600 Dortmund Guth Cold-starting fluorescent lamp having a single-pin cap, and a method for its production
US4578616A (en) * 1984-06-07 1986-03-25 General Electric Company Tungsten halogen incandescent lamp having an improved mounting structure
US4720653A (en) * 1986-10-20 1988-01-19 Gte Products Corporation Electric lamp with bridge support member providing both compressive and axial support

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DE59601249D1 (en) 1999-03-18
DE19523146A1 (en) 1997-01-02
US5680009A (en) 1997-10-21
CA2178158A1 (en) 1996-12-30
JPH0917397A (en) 1997-01-17
EP0751550A1 (en) 1997-01-02

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