EP0807316B1 - Procede de production de lampes electriques a incandescence - Google Patents

Procede de production de lampes electriques a incandescence Download PDF

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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
Application number
EP96900847A
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German (de)
English (en)
Other versions
EP0807316A1 (fr
Inventor
Rolf Minder
Rüdiger Klam
Rolf Kiesel
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
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Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0807316A1 publication Critical patent/EP0807316A1/fr
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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.

Landscapes

  • 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)

Claims (3)

  1. Procédé de fabrication d'une lampe électrique à incandescence, la lampe à incandescence ayant les caractéristiques suivantes :
    une ampoule (1) de lampe dans laquelle est monté au moins un filament (4) à incandescence en tungstène, dont les extrémités (4a, 4b) sont soudées ou brasées respectivement à une entrée (2, 3) de courant, les entrées (2, 3) de courant étant en un métal qui a un point de fusion plus bas que le tungstène du filament (4) incandescent,
    ledit au moins filament (4) incandescent a des extrémités (4a, 4b) non spiralées qui sont soudées ou brasées respectivement à l'extrémité (2a, 3a) fondue ou resolidifiée d'une entrée (2, 3) de courant,
       le procédé de fabrication comprenant les stades de fabrication suivants :
    mise à disposition de deux fils (2, 3) d'entrée de courant, qui sont en un métal qui a un point de fusion plus bas que le tungstène,
    mise à disposition d'un filament (4) incandescent en tungstène, ayant des extrémités (4a, 4b) non spiralées,
    alignement et immobilisation du filament (4) incandescent et des fils (2, 3) d'entrée de courant de sorte que les extrémités (4a, 4b) du filament incandescent qui ne sont pas spiralées et que les entrées (2, 3) de courant se croisent,
    chauffage des extrémités (2a, 3a) d'entrée de courant, qui dépassent des extrémités (4a, 4b) du filament incandescent de sorte que le métal fondu des entrées (2, 3) de courant s'écoule autour des extrémités (4a, 4b) du filament incandescent qui ne sont pas spiralées et ensuite on laisse la masse métallique fondue se solidifier,
       caractérisé en ce que ledit stade de fabrication de chauffage s'effectue au moyen d'un laser.
  2. Procédé de fabrication d'une lampe électrique à incandescence suivant la revendication 1, caractérisé en ce que chaque extrémité (2a, 3a) des entrées (2, 3) de courant est recourbée en crochet et le filament (4) incandescent est accroché ou suspendu par ses extrémités (4a, 4b) non spiralées, avant le chauffage des extrémités (2a, 3a) d'entrée de courant, aux extrémités (2a, 3a) d'entrée de courant en forme de crochet.
  3. Procédé de fabrication d'une lampe électrique à incandescence suivant la revendication 2, caractérisé en ce que les extrémités (2a, 3a) recourbées en forme de crochet des entrées (2, 3) de courant sont chauffées et fondues localement au moyen d'un laser.
EP96900847A 1995-01-31 1996-01-24 Procede de production de lampes electriques a incandescence Revoked EP0807316B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19503026 1995-01-31
DE19503026 1995-01-31
PCT/DE1996/000100 WO1996024157A1 (fr) 1995-01-31 1996-01-24 Lampe electrique a incandescence et procede de production de lampes electriques a incandescence

Publications (2)

Publication Number Publication Date
EP0807316A1 EP0807316A1 (fr) 1997-11-19
EP0807316B1 true EP0807316B1 (fr) 1999-04-28

Family

ID=7752751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96900847A Revoked EP0807316B1 (fr) 1995-01-31 1996-01-24 Procede de production de lampes electriques a incandescence

Country Status (7)

Country Link
EP (1) EP0807316B1 (fr)
JP (1) JPH11502663A (fr)
CN (1) CN1104035C (fr)
CA (1) CA2211857A1 (fr)
DE (1) DE59601772D1 (fr)
HU (1) HU220536B1 (fr)
WO (1) WO1996024157A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69622838T2 (de) * 1995-10-20 2003-04-24 Koninklijke Philips Electronics N.V., Eindhoven Elektrische lampe
ES2219071T3 (es) * 1998-10-22 2004-11-16 Koninklijke Philips Electronics N.V. Lampara electrica incandescente..
US6639364B1 (en) * 2000-06-29 2003-10-28 Koninklijke Philips Electronics N.V. Halogen incandescent capsule having filament leg clamped in press seal
DE102004027806A1 (de) * 2004-06-08 2006-01-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Verfahren zum Verschweißen einer Metallfolie mit einem zylindrischen Metallstift
DE102004044365A1 (de) * 2004-09-10 2006-03-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Glühlampe
CN104319225A (zh) * 2014-09-12 2015-01-28 昆山博文照明科技有限公司 电白炽灯泡及其制造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
HUP9800336A3 (en) 2000-07-28
CN1104035C (zh) 2003-03-26
HUP9800336A2 (hu) 1998-06-29
CA2211857A1 (fr) 1996-08-08
JPH11502663A (ja) 1999-03-02
WO1996024157A1 (fr) 1996-08-08
CN1172550A (zh) 1998-02-04
DE59601772D1 (de) 1999-06-02
EP0807316A1 (fr) 1997-11-19
HU220536B1 (hu) 2002-03-28

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