EP0807316A1 - Lampe electrique a incandescence et procede de production de lampes electriques a incandescence - Google Patents

Lampe electrique a incandescence et procede de production de lampes electriques a incandescence

Info

Publication number
EP0807316A1
EP0807316A1 EP96900847A EP96900847A EP0807316A1 EP 0807316 A1 EP0807316 A1 EP 0807316A1 EP 96900847 A EP96900847 A EP 96900847A EP 96900847 A EP96900847 A EP 96900847A EP 0807316 A1 EP0807316 A1 EP 0807316A1
Authority
EP
European Patent Office
Prior art keywords
filament
power supply
tungsten
lamp
incandescent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96900847A
Other languages
German (de)
English (en)
Other versions
EP0807316B1 (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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7752751&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0807316(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
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
Application granted granted Critical
Publication of EP0807316B1 publication Critical patent/EP0807316B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

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 an electric incandescent lamp and a method for producing an electric incandescent lamp according to the preamble of claim 1.
  • Such an incandescent lamp is disclosed, for example, in German published patent application DE 31 41 330.
  • the incandescent lamp described in this publication has an incandescent filament made of tungsten, the simply coiled ends of which are hard-soldered to a power supply line, preferably made of molybdenum.
  • a power supply line preferably made of molybdenum.
  • the power supply lines are melted at their ends by means of a soldering electrode, so that the melt runs between the turns of the single-ended filament ends. After the melt has solidified, the incandescent filament and the power supply lines are reliably connected to one another.
  • the electric light bulbs according to the invention have tungsten filaments with uncoiled ends, each of which is welded or soldered to the melted and re-solidified end of a power supply.
  • the power supplies consist of a metal that has a lower melting temperature than the tungsten of the filament. This ensures that only the metal of the power supply melts when welding the end of the filament and the power supply.
  • the tungsten of the filament does not melt and does not recrystallize during the welding or soldering process.
  • the power supply lines for the incandescent filament preferably consist of mol b-dän, which is particularly well suited for use in lamp bulbs made of quartz glass or for melting in lamp bulbs made of hard glass.
  • the ends of the power supply lines which are advantageously hook-shaped, are preferably locally heated and melted briefly by means of a LASER under a protective gas atmosphere.
  • the melt flows around the uncoiled incandescent and solidifies. After the melt has solidified, the filament ends are completely embedded in the metal of the power supply lines and the welding or soldering points between the filament and the power supply lines have no appreciable electrical contact resistance.
  • This type of filament holder is particularly well suited for low-wattage low-voltage incandescent lamps, in particular also for low-wattage low-voltage halogen incandescent lamps.
  • Figure 1 is a schematic representation of an incandescent lamp according to the preferred embodiment 2 shows 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 the power supply lines are welded or soldered to the filament ends
  • FIG. 3 shows a side view of the hook-shaped bent end of a power supply with the glow coil end hooked or hooked into it (in a schematic representation)
  • the incandescent lamp according to the invention shown schematically in FIG. 1 is a low-wattage low-voltage halogen incandescent lamp which is used as a light source for headlights or tail lights of two-wheelers, such as, for. B. bicycle or moped is used.
  • the nominal voltage of the lamp is approximately 6 V and its electrical power consumption is less than 3 W.
  • This lamp has a lamp bulb 1 made of hard glass, in particular made of borosilicate glass, which is sealed gas-tight by means of a pinch seal. From the lamp bulb 1, two current leads 2, 3, which are melted down in a gas-tight manner in the pinch seal 1 a, are led out of molybdenum.
  • a single-coiled filament 4 made of tungsten with perpendicular ends to the lamp axis and uncoiled ends 4a, 4b.
  • the uncoiled filament ends 4a, 4b are each welded or soldered to the end 2a, 3a of the power supply lines 2, 3 protruding into the interior of the lamp bulb 1.
  • inert gas eg argon, krypton or xenon
  • a small amount of a halogen compound which is gaseous during lamp operation.
  • a lamp bulb 1 made of hard glass, a single-coiled tungsten filament 4 with uncoiled ends 4a, 4b and two current leads 2, 3 made of molybdenum wire are used.
  • One end 2 a, 3 a 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 a length of approximately 0.5 mm to 1.0 mm.
  • the filament 4 with the current leads 2, 3 are fixed in a holding device (not shown) and aligned so that the filament ends 4a, 4b and the current leads 2, 3 intersect and the uncoiled ends 4a, 4b of the tungsten filament 4 into the hook-shaped Power supply ends 2a, 3a are hooked or hooked. Then the angled section of the hook-shaped ends 2a, 3a of the power supply lines 2, 3 is briefly heated to the melting point under a protective gas atmosphere with the aid of a LASER. The molybdenum melt flows around the uncoiled tungsten filament ends 4a, 4b and solidifies. After the melt solidifies, the coil ends 4a, 4b are completely embedded in the molybdenum of the current leads 2, 3. Thereafter, the incandescent filament 4 is inserted into the lamp bulb 1 and this is squeezed tightly in a known manner above the current leads 2, 3. The lamp bulb 1 is evacuated via a pump stem 5 and filled with inert gas.
  • the invention is not limited to the exemplary embodiment described in more detail above.
  • the manufacturing method according to the invention also works if the ends 2a, 3a of the power supply lines 2, 3 are not bent in a hook shape. It is already sufficient if the uncoiled filament ends 4a, 4b and the current leads 2, 3 are fixed and aligned in the holding device in such a way that they intersect.
  • the ends 2a, 3a of the power supply lines 2, 3 should each protrude about 0.5-1.0 mm beyond the respective spiral end 4a, 4b.
  • the protruding current supply ends 2a, 3a are then melted with the aid of a LASER under a protective gas atmosphere, so that the molybdenum melt wets and encloses the spiral ends 4a, 4b. After the melt solidifies, the coil ends 4a, 4b are largely embedded in the molybdenum of the current leads 2, 3.
  • the invention can also be applied to incandescent lamps with incandescent filaments oriented axially (lying in the lamp axis).
  • the lamp bulb 1 can also consist of quartz glass and be closed by means of a known molybdenum foil melting technique.
  • the invention can also be applied to incandescent lamps without halogen filling.
  • the power supply lines can also consist of a copper sheathed wire, nickel or iron wire.

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)

Abstract

L'invention concerne une lampe électrique à incandescence, notamment une lampe à incandescence de basse tension et de faible puissance active, et le procédé de fabrication de ces lampes. La lampe décrite comprend un filament de tungstène enroulé en spirale (4) avec des extrémités rectilignes (4a, 4b) soudées ou brasées chacune sur une amenée de courant (2, 3). Les amenées de courant (2, 3) sont constituées d'un métal qui a une température de fusion inférieure à celle du tungstène. Lorsque l'on veut souder ou braser le filament incandescent enroulé en spirale (4) sur les amenées de courant (2, 3), on positionne celles-ci de sorte que les extrémités rectilignes (4a, 4b) du filament et les extrémités (2a, 3a) de préférence en forme de crochets des amenées de courant se croisent. Les extrémités (2a, 3a) des amenées de courant sont chauffées rapidement par un laser jusqu'à leur point de fusion. La matière en fusion coule sur l'extrémité correspondante (4a, 4b) du filament enroulé en spirale, de sorte que lorsque la matière en fusion se solidifie, le filament est encastré dans le métal constitutif de l'amenée de courant.
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 true EP0807316A1 (fr) 1997-11-19
EP0807316B1 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
KR100430637B1 (ko) * 1995-10-20 2004-06-16 코닌클리케 필립스 일렉트로닉스 엔.브이. 전기램프
WO2000025346A1 (fr) * 1998-10-22 2000-05-04 Koninklijke Philips Electronics N.V. Lampe incandescente electrique
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Eidesstattliche Versicherung von Frau Karin Hasselkus Stockach den 09.12.1997

Also Published As

Publication number Publication date
WO1996024157A1 (fr) 1996-08-08
HUP9800336A2 (hu) 1998-06-29
EP0807316B1 (fr) 1999-04-28
HU220536B1 (hu) 2002-03-28
HUP9800336A3 (en) 2000-07-28
CN1104035C (zh) 2003-03-26
DE59601772D1 (de) 1999-06-02
CA2211857A1 (fr) 1996-08-08
JPH11502663A (ja) 1999-03-02
CN1172550A (zh) 1998-02-04

Similar Documents

Publication Publication Date Title
DE19812298C2 (de) Verfahren zur Herstellung einer Metall-Halogenlampe sowie eine derartige Metall-Halogenlampe
EP0910867B1 (fr) Procede de production d'une lampe a incandescence electrique
EP2087506B1 (fr) Lampe à incandescence halogène
EP0776025B1 (fr) Lampe électrique à incandescence avec coupelle et procédé de fabrication d'une telle lampe, ainsi que coupelle pour une lampe électrique à incandescence
EP0807316B1 (fr) Procede de production de lampes electriques a incandescence
DE3127461A1 (de) Gluehfadenhalterung und elektrische verbindung fuer eine halogenlampe sowie herstellungsverfahren
DE2732060C2 (de) Elektrische Leuchtstofflampe
DE69011145T2 (de) Einseitig gequetschte Metalldampfentladungslampe.
DE3035786A1 (de) Gluehlampe
EP2342736B1 (fr) Ampoule halogène pour clignotants de véhicules automobiles et clignotants pour véhicules automobiles
DE19538497C2 (de) Verfahren zur Herstellung einer elektrischen Lampe
DE2909259C2 (fr)
EP2122664A1 (fr) Lampe à incandescence halogène
DE69408787T2 (de) Entladungslampe mit einem bimetallischen Schalter versehen und zu einer Lampe passender bimetallischen Schalter
WO2012110277A1 (fr) Lampe halogène pour phare de véhicule et phare de véhicule
EP2052399B8 (fr) Procédé de réalisation et d'insertion d'un support d'électrodes doté d'un filament spiralé dans une ampoule de lampe à décharge
EP0751550B1 (fr) Procédé de fabrication d'une lampe électrique à incandescence et lampe à incandescence produite selon ce procédé
DE3616192A1 (de) Hochdruckentladungslampe und verfahren zum betrieb der hochdruckentladungslampe
DE3141330A1 (de) "wolfram-gluehfaden/anschlussdraht-hartloetverbindung"
DE2244415C3 (de) Verfahren zum Herstellen von im wesentlichen langgestreckten Glühlampen
DE19612169A1 (de) Verfahren zum Verbinden von Glühwendel und Stromzuführung bei elektrischen Lampen
DE1489329C (de) Elektrische Glühlampe
DE29607132U1 (de) Halogenlampe
DE9115714U1 (de) Einseitig verschlossene elektrische Glühlampe
EP1349198A2 (fr) Lampe électrique à incandescence

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970721

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB IT NL

TPAD Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOS TIPA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19980817

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT NL

REF Corresponds to:

Ref document number: 59601772

Country of ref document: DE

Date of ref document: 19990602

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990625

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: ZORN GMBH & CO. KG

Effective date: 20000114

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

NLR1 Nl: opposition has been filed with the epo

Opponent name: ZORN GMBH & CO. KG

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20030120

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20030128

Year of fee payment: 8

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: ZORN GMBH & CO. KG

Effective date: 20000114

NLR1 Nl: opposition has been filed with the epo

Opponent name: ZORN GMBH & CO. KG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040131

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

BERE Be: lapsed

Owner name: *PATENT-TREUHAND-G.- FUR ELEKTRISCHE GLUHLAMPEN M.

Effective date: 20040131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040801

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040801

APAA Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOS REFN

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050124

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20060123

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060322

Year of fee payment: 11

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20060704

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 20060704

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060105

Year of fee payment: 11