EP0807316B1 - Process for producing electric incandescent lamps - Google Patents
Process for producing electric incandescent lamps Download PDFInfo
- Publication number
- EP0807316B1 EP0807316B1 EP96900847A EP96900847A EP0807316B1 EP 0807316 B1 EP0807316 B1 EP 0807316B1 EP 96900847 A EP96900847 A EP 96900847A EP 96900847 A EP96900847 A EP 96900847A EP 0807316 B1 EP0807316 B1 EP 0807316B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filament
- incandescent
- uncoiled
- incandescent filament
- tungsten
- 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.)
- Revoked
Links
- 238000000034 method Methods 0.000 title description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 13
- 229910052721 tungsten Inorganic materials 0.000 claims description 12
- 239000010937 tungsten Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims 2
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 9
- 229910052750 molybdenum Inorganic materials 0.000 description 8
- 239000011733 molybdenum Substances 0.000 description 8
- 238000005476 soldering Methods 0.000 description 8
- 239000000155 melt Substances 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000005341 toughened glass Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- H01K1/02—Incandescent bodies
- H01K1/16—Electric connection thereto
Definitions
- the invention relates to a method for producing an electrical Incandescent lamp according to the preamble of claim 1.
- Incandescent lamp is, for example, in the German published application DE 31 41 330 discloses.
- the one described in this document Incandescent lamp has a tungsten filament, the single coiled Ends each with a power supply, preferably made of molybdenum are brazed. To make the braze joint the ends of the leads were melted using a soldering electrode, so that the melt between the turns of the simply coiled Filament ends running. After the melt solidifies, the incandescent filaments are and the power supplies reliably connected.
- the patent US 2,247,268 describes an electric light bulb with a Pair of power supplies and a filament that is uncoiled Has ends.
- the uncoiled filament ends are each with a Power supply welded and arranged so that it is the relevant Partially loop the power supply.
- Part of the power supply looping part of a filament end is between the respective Spot and the light-emitting, coiled part of the filament arranged.
- the electric light bulbs according to the invention have filaments Tungsten with uncoiled ends, each with the melted one and re-solidified end of a power lead welded or soldered are.
- the power leads are made of a metal that is a deeper Melting temperature than the tungsten of the filament. Thereby it is ensured that when welding or soldering the filament end and power supply only melts the metal of the power supply.
- the tungsten of the filament does not melt and recrystallize not even during the welding or soldering process.
- the Power supplies for the filament are preferably made of molybdenum, the particularly good for use in quartz glass or for the Melting in lamp bulbs made of tempered glass is suitable.
- the incandescent lamp it is advantageous hook-shaped bent ends of the power leads preferably briefly locally using a LASER in a protective gas atmosphere heated and melted.
- the melt flows around the uncoiled Filament ends and froze. After the melt solidifies, they are Filament ends completely embedded in the metal of the power leads and the welding or soldering points between the filament and the Power supplies have no significant electrical contact resistance.
- This type of helix holder is particularly suitable for low-wattage low-voltage incandescent lamps, especially also for low-wattage ones Low-voltage halogen light bulbs.
- incandescent lamp shown schematically in FIG. 1 is a low-wattage low-voltage halogen lamp, which as a light source for headlights or tail lights of two-wheelers, such as e.g. B. bicycle or moped is used.
- the nominal voltage of the lamp is approx. 6 V and their electrical power consumption is less than 3 W.
- This lamp has a lamp bulb 1 made of tempered glass, in particular made of Borosilicate glass, which is sealed gas-tight by means of a pinch seal is. From the lamp bulb 1 are two gas-tight in the pinch seal la sealed, parallel current leads 2, 3 made of molybdenum led out.
- a simple one coiled filament 4 aligned perpendicular to the lamp axis Tungsten with uncoiled ends 4a, 4b.
- the uncoiled filament ends 4a, 4b are each protruding into the interior of the lamp bulb 1 End 2a, 3a of the power supply lines 2, 3 welded or soldered.
- inert gas e.g. argon, Krypton or Xenon
- a small amount of one during lamp operation gaseous halogen compound e.g. argon, Krypton or Xenon
- An embodiment is a lamp bulb 1 made of tempered glass, a simply coiled tungsten coil 4 with uncoiled ends 4a, 4b and two power supply lines 2, 3 used from molybdenum wire.
- One end each 2a, 3a of the power supply lines 2, 3 is hook-shaped.
- the Diameter of the power supply lines 2, 3 is approximately 0.5 mm and The diameter of the tungsten wire of the filament is approximately 0.05 mm.
- the angled sections 2a, 3a of the power supply ends have one Length from about 0.5 mm to 1.0 mm.
- the invention is not limited to the exemplary embodiment described in more detail above.
- the manufacturing method according to the invention works even if the ends 2a, 3a of the power supply lines 2, 3 are not hook-shaped are bent. It is enough if the uncoiled filament ends 4a, 4b and the power supply lines 2, 3 in this way in the holding device are fixed and aligned so that they cross.
- the ends 2a, 3a of the Power supply lines 2, 3 should each be about 0.5-1.0 mm above the relevant one Extend the spiral ends 4a, 4b.
- the protruding power supply ends 2a, 3a are then with the help of a LASER under a protective gas atmosphere melted so that the molybdenum melt the coil ends 4a, 4b wets and encloses. After the melt solidifies, the coil ends are 4a, 4b largely embedded in the molybdenum of the power supply lines 2, 3.
- the invention can also be applied to incandescent lamps with axial (in the lamp axis lying) aligned filaments are applied.
- the lamp bulb 1 also consist of quartz glass and by means of a known Molybdenum foil melting technology must be closed.
- the invention can also be applied to incandescent lamps without halogen filling become.
- the power supplies can also be made from one Copper sheathed wire, nickel or iron wire exist.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Heating (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Die Erfindung betrifft ein Verfahren zur Herstellung einer elektrischen
Glühlampe gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for producing an electrical
Incandescent lamp according to the preamble of
Eine derartige Glühlampe ist beispielsweise in der deutschen Offenlegungsschrift DE 31 41 330 offenbart. Die in dieser Druckschrift beschriebene Glühlampe besitzt eine Glühwendel aus Wolfram, deren einfach gewendelte Enden mit jeweils einer, vorzugsweise aus Molybdän bestehenden Stromzuführung hartverlötet sind. Zur Herstellung der Hartlötverbindung werden die Stromzuführungen an ihren Enden mittels einer Lötelektrode geschmolzen, so daß die Schmelze zwischen die Windungen der einfach gewendelten Glühwendelenden läuft. Nach dem Erstarren der Schmelze sind die Glühwendel und die Stromzuführungen zuverlässig miteinander verbunden. Nachteilig wirkt sich hier allerdings aus, daß die mit den Stromzuführungen verschweißten Glühwendelenden gewendelt sind, da das Verlöten der gewendelten Glühwendelenden mit den Enden der Stromzuführungen zu einer unerwünschten Torsion der Glühwendel und damit zu Ungenauigkeiten bei der Positionierung der Glühwendel im Lampenkolben führen kann.Such an incandescent lamp is, for example, in the German published application DE 31 41 330 discloses. The one described in this document Incandescent lamp has a tungsten filament, the single coiled Ends each with a power supply, preferably made of molybdenum are brazed. To make the braze joint the ends of the leads were melted using a soldering electrode, so that the melt between the turns of the simply coiled Filament ends running. After the melt solidifies, the incandescent filaments are and the power supplies reliably connected. The disadvantage here, however, is that the power supply welded filament ends are coiled because the soldering of the coiled Filament ends with the ends of the power leads to one unwanted torsion of the filament and thus inaccuracies when positioning the filament in the lamp bulb.
Die Patentschrift US 2,247,268 beschreibt eine elektrische Glühlampe mit einem Paar von Stromzuführungen und einer Glühwendel, die ungewendelte Enden besitzt. Die ungewendelten Glühwendelenden sind jeweils mit einer Stromzuführung verschweißt und derart angeordnet, daß sie die betreffende Stromzuführung teilweise umschlingen. Der die Stromzuführung teilweise umschlingende Teil eines Glühwendelendes ist dabei zwischen dem jeweiligen Schweißpunkt und dem lichtemittierenden, gewendelten Teil der Glühwendel angeordnet.The patent US 2,247,268 describes an electric light bulb with a Pair of power supplies and a filament that is uncoiled Has ends. The uncoiled filament ends are each with a Power supply welded and arranged so that it is the relevant Partially loop the power supply. Part of the power supply looping part of a filament end is between the respective Spot and the light-emitting, coiled part of the filament arranged.
Es ist die Aufgabe der Erfindung, ein Herstellungsverfahren für eine Glühlampe mit einer verbesserten Glühwendelhalterung bereitzustellen.It is the object of the invention to provide a manufacturing method for an incandescent lamp to provide with an improved filament holder.
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
Die erfindungsgemäßen elektrischen Glühlampen besitzen Glühwendeln aus Wolfram mit ungewendelten Enden, die jeweils mit dem aufgeschmolzenen und wiedererstarrten Ende einer Stromzuführung verschweißt oder verlötet sind. Die Stromzuführungen bestehen aus einem Metall, das eine tiefere Schmelztemperatur als das Wolfram der Glühwendel aufweist. Dadurch wird gewährleistet, daß beim Verschweißen bzw. Verlöten von Glühwendelende und Stromzuführung nur das Metall der Stromzuführung schmilzt. Das Wolfram der Glühwendel hingegen schmilzt nicht und rekristallisiert auch nicht während des Schweiß- bzw. Lötvorganges. Da die mit den Stromzuführungen verschweißten oder verlöteten Enden der Glühwendel ungewendelt sind, kann durch den Schweiß- oder Lötvorgang keine Torsion der Glühwendel hervorgerufen werden, der zu Ungenauigkeiten bei der Positionierung der Glühwendel im Lampenkolben führen könnte. Die Stromzuführungen für die Glühwendel bestehen vorzugsweise aus Molybdän, das besonders gut für die Verwendung in aus Quarzglas bzw. für die Einschmelzung in aus Hartglas gefertigten Lampenkolben geeignet ist.The electric light bulbs according to the invention have filaments Tungsten with uncoiled ends, each with the melted one and re-solidified end of a power lead welded or soldered are. The power leads are made of a metal that is a deeper Melting temperature than the tungsten of the filament. Thereby it is ensured that when welding or soldering the filament end and power supply only melts the metal of the power supply. The tungsten of the filament, however, does not melt and recrystallize not even during the welding or soldering process. Since the one with the Power leads welded or soldered ends of the filament are not coiled, torsion cannot occur due to the welding or soldering process the incandescent filament are caused, leading to inaccuracies in the Positioning the filament in the lamp bulb could result. The Power supplies for the filament are preferably made of molybdenum, the particularly good for use in quartz glass or for the Melting in lamp bulbs made of tempered glass is suitable.
Zur Herstellung der erfindungsgemäßen Glühlampe werden die vorteihafterweise hakenförmig gebogenen Enden der Stromzuführungen vorzugsweise mittels eines LASER's unter Schutzgasatmosphäre kurzzeitig lokal erhitzt und geschmolzen. Dabei fließt die Schmelze um die ungewendelten Glühwendelenden und erstarrt. Nach dem Erstarren der Schmelze sind die Glühwendelenden vollständig in dem Metall der Stromzuführungen eingebettet und die Schweiß- bzw. Lötstellen zwischen der Glühwendel und den Stromzuführungen besitzen keinen nennenswerten elektrischen Übergangswiderstand. Diese Art der Wendelhalterung eignet sich besonders gut für kleinwattige Niedervolt-Glühlampen, insbesondere auch für kleinwattige Niedervolt-Halogenglühlampen.To produce the incandescent lamp according to the invention, it is advantageous hook-shaped bent ends of the power leads preferably briefly locally using a LASER in a protective gas atmosphere heated and melted. The melt flows around the uncoiled Filament ends and froze. After the melt solidifies, they are Filament ends completely embedded in the metal of the power leads and the welding or soldering points between the filament and the Power supplies have no significant electrical contact resistance. This type of helix holder is particularly suitable for low-wattage low-voltage incandescent lamps, especially also for low-wattage ones Low-voltage halogen light bulbs.
Nachstehend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:
Figur 1- Eine schematische Darstellung einer Glühlampe gemäß des bevorzugten Ausführungsbeispiels
Figur 2- Eine Draufsicht auf Stromzuführungen und Glühwendel (schematisch
dargestellt) der Glühlampe gemäß des Ausführungsbeispiels
in
Figur 1 vor dem Verschweißen bzw. Verlöten der Stromzuführungen mit den Glühwendelenden Figur 3- Eine Seitenansicht des hakenförmig gebogenen Endes einer Stromzuführung mit dem darin eingehakten bzw. eingehängten Glühwendelende (in schematischer Darstellung)
- Figure 1
- A schematic representation of an incandescent lamp according to the preferred embodiment
- Figure 2
- A plan view of the power supply lines and filament (shown schematically) of the incandescent lamp according to the exemplary embodiment in FIG. 1 before welding or soldering the power supply lines to the filament ends
- Figure 3
- A side view of the hook-shaped bent end of a power supply with the glow filament end hooked or hooked into it (in a schematic representation)
Bei der in der Figur 1 schematisch dargestellten erfindungsgemäßen Glühlampe
handelt es sich um eine kleinwattige Niedervolt-Halogenglühlampe,
die als Lichtquelle für Scheinwerfer oder Schlußlicht von Zweirädern, wie
z. B. Fahrrad oder Mofa, verwendet wird. Die Nennspannung der Lampe
beträgt ca. 6 V und ihre elektrische Leistungsaufnahme ist kleiner als 3 W.
Diese Lampe besitzt einen Lampenkolben 1 aus Hartglas, insbesondere aus
Borsilikatglas, der mittels einer Quetschdichtung la gasdicht verschlossen
ist. Aus dem Lampenkolben 1 sind zwei gasdicht in der Quetschdichtung la
eingeschmolzene, parallel verlaufende Stromzuführungen 2, 3 aus Molybdän
herausgeführt. Innerhalb des Lampenkolbens 1 befindet sich eine einfach
gewendelte, senkrecht zur Lampenachse ausgerichtete Glühwendel 4 aus
Wolfram mit ungewendelten Enden 4a, 4b. Die ungewendelten Glühwendelenden
4a, 4b sind jeweils dem in den Innenraum des Lampenkolbens 1 hineinragenden
Ende 2a, 3a der Stromzuführungen 2, 3 verschweißt oder verlötet.
Im Innenraum des Lampenkolbens 1 befinden sich Inertgas (z. B. Argon,
Krypton oder Xenon) und eine geringe Menge einer während des Lampenbetriebes
gasförmigen Halogenverbindung.In the inventive incandescent lamp shown schematically in FIG. 1
is a low-wattage low-voltage halogen lamp,
which as a light source for headlights or tail lights of two-wheelers, such as
e.g. B. bicycle or moped is used. The nominal voltage of the lamp
is approx. 6 V and their electrical power consumption is less than 3 W.
This lamp has a
Zur Herstellung der Halogen-Glühlampe gemäß des in der Figur 1 abgebildeten
Ausführungsbeispiels werden ein Lampenkolben 1 aus Hartglas, eine
einfach gewendelte Wolframwendel 4 mit ungewendelten Enden 4a, 4b und
zwei Stromzuführungen 2, 3 aus Molybdändraht verwendet. Jeweils ein Ende
2a, 3a der Stromzuführungen 2, 3 ist hakenförmig ausgebildet. Der
Durchmesser der Stromzuführungen 2, 3 beträgt ca. 0,5mm und der
Durchmesser des Wolframdrahtes der Glühwendel beträgt ca. 0,05 mm. Die
abgewinkelten Abschnitte 2a, 3a der Stromzuführungsenden haben eine
Länge von ungefähr 0,5 mm bis 1,0 mm. Zum Verschweißen bzw. Verlöten
der Glühwendel 4 mit den Stromzuführungen 2, 3 werden diese in einer
Haltevorrichtung (nicht abgebildet) fixiert und so ausgerichtet, daß sich die
Glühwendelenden 4a, 4b und die Stromzuführungen 2, 3 kreuzen und die
ungewendelten Enden 4a, 4b der Wolframwendel 4 in die hakenförmigen
Stromzuführungsenden 2a, 3a eingehakt bzw. eingehängt sind. Danach wird
der abgewinkelte Abschnitt der hakenförmigen Enden 2a, 3a der Stromzuführungen
2, 3 unter Schutzgasatmosphäre mit Hilfe eines LASER's kurzzeitig
bis auf den Schmelzpunkt erhitzt. Dabei umfließt die Molybdänschmelze
die ungewendelten Wolframwendelenden 4a, 4b und erstarrt. Nach dem
Erstarren der Schmelze sind die Wendelenden 4a, 4b vollständig in dem
Molybdän der Stromzuführungen 2, 3 eingebettet. Danach wird die
Glühwendel 4 in den Lampenkolben 1 eingeführt und dieser über den
Stromzuführungen 2, 3 in bekannter Weise dicht gequetscht. Über einen
Pumpstengel 5 wird der Lampenkolben 1 evakuiert und mit Inertgas gefüllt.To produce the halogen incandescent lamp according to that shown in FIG. 1
An embodiment is a
Die Erfindung beschränkt sich nicht auf das oben näher beschriebene Ausführungsbeispiel.
Das erfindungsgemäße Herstellungsverfahren funktioniert
auch, wenn die Enden 2a, 3a der Stromzuführungen 2, 3 nicht hakenförmig
gebogen sind. Es genügt bereits, wenn die ungewendelten Glühwendelenden
4a, 4b und die Stromzuführungen 2, 3 derart in der Haltevorrichtung
fixiert und ausgerichtet sind, daß sie sich kreuzen. Die Enden 2a, 3a der
Stromzuführungen 2, 3 sollten dabei jeweils ca 0,5-1,0 mm über das betreffende
Wendelende 4a, 4b überstehen. Die überstehenden Stromzuführungsenden
2a, 3a werden dann mit Hilfe eines LASER's unter Schutzgasatmosphäre
geschmolzen, so daß die Molybdänschmelze die Wendelenden 4a, 4b
benetzt und umschließt. Nach dem Erstarren der Schmelze sind die Wendelenden
4a, 4b weitgehend in dem Molybdän der Stromzuführungen 2, 3 eingebettet.The invention is not limited to the exemplary embodiment described in more detail above.
The manufacturing method according to the invention works
even if the
Die Erfindung kann auch auf Glühlampen mit axial (in der Lampenachse
liegenden) ausgerichteten Glühwendeln angewandt werden. Ferner kann
der Lampenkolben 1 auch aus Quarzglas bestehen und mittels einer bekannten
Molybdänfolieneinschmelzungstechnik verschlossen sein. Außerdem
kann die Erfindung auch auf Glühlampen ohne Halogenfüllung angewandt
werden. In diesem Fall können die Stromzuführungen auch aus einem
Kupfermanteldraht, Nickel- oder Eisendraht bestehen.The invention can also be applied to incandescent lamps with axial (in the lamp axis
lying) aligned filaments are applied. Furthermore,
the
Claims (3)
- Method for producing an electric incandescent lamp, the incandescent lamp having the following features:it being the case that the production method contains the following fabrication steps:a lamp bulb (1) in which there is arranged at least one incandescent filament (4), made from tungsten, whose ends (4a, 4b) are each welded or soldered to a supply lead (2, 3), the supply leads (2, 3) consisting of a metal which has a lower melting temperature than the tungsten of the incandescent filament (4),at least one incandescent filament (4) has uncoiled ends (4a, 4b) which are each welded or soldered to the melted and then solidified end (2a, 3a) of a supply lead (2, 3),providing two supply lead wires (2, 3) which consist of a metal which has a lower melting temperature than tungsten,providing an incandescent filament (4), made from tungsten, with uncoiled ends (4a, 4b),aligning and fixing the incandescent filament (4) and the supply lead wires (2, 3) so that the uncoiled incandescent filament ends (4a, 4b) and the supply leads (2, 3) intersect,heatng the supply lead ends (2a, 3a), which project beyond the incandescent filament ends (4a, 4b), with the result that the molten metal of the supply leads (2, 3) flows around the uncoiled incandescent filament ends (4a, 4b), and subsequent solidification of the metal melt, characterized in that the said fabrication step of heating is performed by means of a LASER.
- Method for producing an electric incandescent lamp according to Claim 1, characterized in that in each case one end (2a, 3a) of the supply leads (2, 3) is bent in the form of a hook, and before the heating of the supply lead ends (2a, 3a) the incandescent filament (4) is hooked or suspended with its uncoiled ends (4a, 4b) in the hook-shaped supply lead ends (2a, 3a).
- Method for producing an electric incandescent lamp according to Claim 2, characterized in that the ends (2a, 3a), bent in the shape of a hook, of the supply leads (2, 3) are locally heated and melted with the aid of a LASER.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19503026 | 1995-01-31 | ||
| DE19503026 | 1995-01-31 | ||
| PCT/DE1996/000100 WO1996024157A1 (en) | 1995-01-31 | 1996-01-24 | Electric incandescent lamp and process for producing electric incandescent lamps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0807316A1 EP0807316A1 (en) | 1997-11-19 |
| EP0807316B1 true EP0807316B1 (en) | 1999-04-28 |
Family
ID=7752751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96900847A Revoked EP0807316B1 (en) | 1995-01-31 | 1996-01-24 | Process for producing electric incandescent lamps |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0807316B1 (en) |
| JP (1) | JPH11502663A (en) |
| CN (1) | CN1104035C (en) |
| CA (1) | CA2211857A1 (en) |
| DE (1) | DE59601772D1 (en) |
| HU (1) | HU220536B1 (en) |
| WO (1) | WO1996024157A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997015065A2 (en) * | 1995-10-20 | 1997-04-24 | Philips Electronics N.V. | Electric lamp |
| JP2002528880A (en) * | 1998-10-22 | 2002-09-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Incandescent lamp |
| US6639364B1 (en) * | 2000-06-29 | 2003-10-28 | Koninklijke Philips Electronics N.V. | Halogen incandescent capsule having filament leg clamped in press seal |
| DE102004027806A1 (en) * | 2004-06-08 | 2006-01-05 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Method for welding a metal foil with a cylindrical metal pin |
| DE102004044365A1 (en) * | 2004-09-10 | 2006-03-16 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Electric lightbulb |
| CN104319225A (en) * | 2014-09-12 | 2015-01-28 | 昆山博文照明科技有限公司 | Electric incandescent bulb and manufacturing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2247268A (en) * | 1939-04-13 | 1941-06-24 | Tung Sol Lamp Works Inc | Miniature incandescent lamp |
| GB2086286B (en) * | 1980-10-30 | 1984-12-19 | Gen Electric | Brazed tungsten filament to lead joint |
-
1996
- 1996-01-24 EP EP96900847A patent/EP0807316B1/en not_active Revoked
- 1996-01-24 CN CN96191694A patent/CN1104035C/en not_active Expired - Fee Related
- 1996-01-24 CA CA002211857A patent/CA2211857A1/en not_active Abandoned
- 1996-01-24 HU HU9800336A patent/HU220536B1/en not_active IP Right Cessation
- 1996-01-24 DE DE59601772T patent/DE59601772D1/en not_active Revoked
- 1996-01-24 WO PCT/DE1996/000100 patent/WO1996024157A1/en not_active Application Discontinuation
- 1996-01-24 JP JP8523161A patent/JPH11502663A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA2211857A1 (en) | 1996-08-08 |
| WO1996024157A1 (en) | 1996-08-08 |
| JPH11502663A (en) | 1999-03-02 |
| DE59601772D1 (en) | 1999-06-02 |
| EP0807316A1 (en) | 1997-11-19 |
| HUP9800336A2 (en) | 1998-06-29 |
| CN1104035C (en) | 2003-03-26 |
| HU220536B1 (en) | 2002-03-28 |
| HUP9800336A3 (en) | 2000-07-28 |
| CN1172550A (en) | 1998-02-04 |
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