EP0923109B1 - Stiftsockel-Niedervolt-Halogenlampe mit Stromzuführungsleiter - Google Patents

Stiftsockel-Niedervolt-Halogenlampe mit Stromzuführungsleiter Download PDF

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Publication number
EP0923109B1
EP0923109B1 EP98122035A EP98122035A EP0923109B1 EP 0923109 B1 EP0923109 B1 EP 0923109B1 EP 98122035 A EP98122035 A EP 98122035A EP 98122035 A EP98122035 A EP 98122035A EP 0923109 B1 EP0923109 B1 EP 0923109B1
Authority
EP
European Patent Office
Prior art keywords
supply conductor
power supply
halogen lamp
current
pin
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
EP98122035A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0923109A1 (de
Inventor
Werner Dietze
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.)
BRUNO DIETZE
Original Assignee
Individual
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=7851390&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0923109(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP0923109A1 publication Critical patent/EP0923109A1/de
Application granted granted Critical
Publication of EP0923109B1 publication Critical patent/EP0923109B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/40—Leading-in conductors

Definitions

  • the invention relates to a pin base low-voltage halogen lamp with power supply conductor, which is a low-power lamp up to 50 W. as well as an incandescent lamp and the one Glass base and a metal base leading to the glass base Has power supply conductor, one end of one metal sealing pin is welded into the glass base is provided.
  • the pin base low-voltage halogen lamp is an illuminant lamp and comprises a hollow vitreous body and adjoining this an essentially solid or full glass base.
  • the power supply conductor is partially melted into the glass base and partially protrudes outward from the glass base.
  • the power supply conductor is a solid or full structure made of metal.
  • the metal of the power supply conductor an alloy of 98% by weight Ni and 2% by weight Mn.
  • Nickel is an expensive metal and it is therefore desirable that the Manufacture power supply conductors from a cheaper material. however different requirements are imposed on the power supply conductor provided that meet the cheaper replacement metal sought got to. These requirements are:
  • the production of the power supply conductor must not be made difficult by the use of the replacement metal.
  • the replacement metal must withstand the melting temperatures of approx. 1,200 ° C that occur when the power supply conductor melts into the glass base.
  • the replacement metal must have good electrical conductivity in order to ensure the current supply to the interior of the lamp.
  • the replacement metal must have good thermal conductivity in order to dissipate heat from the inside of the lamp bulb to the outside.
  • the replacement metal must withstand operating temperatures of 150 - 220 ° C, which occur on the part of the power supply conductor that protrudes outwards.
  • the replacement metal must have good corrosion resistance in the presence of oxygen and heat.
  • An object of the invention is therefore a pin base low-voltage halogen lamp to create of the type mentioned, whose Power supply conductor consists of a cheaper metal and still well meets the requirements for a power supply conductor this lamp are put.
  • the pin base low-voltage halogen lamp according to the invention is solving this task, characterized in that that power supply conductor made of a stainless steel, the is austenitic and contains additions of Cr and / or Ni, or that the power supply conductor a carrier core from a non-austenitic carbon steel containing alloy additives has and the carrier core all around with a coat Nickel is provided.
  • the metal is the power supply conductor much cheaper, e.g. 20% cheaper than 98% nickel Alloy or pure nickel.
  • the power supply conductor shows due to the steel material regarding electrical conductivity and thermal conductivity slightly worse values than the known one Power supply conductor with the NiMn alloy; this deterioration in value is accepted because the invention Power supply conductors still meet the requirements still well fulfilled.
  • the invention consists in Use of the specified special steel materials for the Power supply conductor of the pin base low-voltage halogen lamp.
  • the stainless steel is known as wire in a suitable training. In in many cases it contains both Cr and Ni and in many cases it contains other additives.
  • the stainless steel is in any case corrosion resistant.
  • the carbon steel contains alloy additives, as is known per se is.
  • the plating nickel cladding that the electrical wire this Power supply conductor takes over is e.g. pure nickel or contains up to 2% Mn and is from a few ⁇ m thick to approx. 15% of the Cross section of the power supply conductor thick.
  • An embodiment of stainless steel is e.g. x5 CrNi 18/10, Werkst.Nr. 1.4301, DIN 17440; containing 0.7% C, 17 - 19% Cr, 8.5 - 10.5 Ni.
  • An example of carbon steel is: D 6-2; Werkst.Nr. 1.0314, DIN 17140; containing 0.06% C, 0.06 % Si, 0.40% Mn, 0.04% Ph, 0.04% S.
  • the power supply conductor according to the invention is like this designed that he with a piece of wire manufactured as drawn wire with up to 4 mm in diameter and 400 mm in length is.
  • This design is for power supply conductors of the aforementioned Kind of usual.
  • the power supply conductor according to the invention is also designed so that it ends up on a metal sealing pin is welded on. This design is for power supply conductors of the type mentioned in the beginning.
  • the power supply conductor and the sealing pin form together the power supply, which is a manufactured product and is acted as such.
  • the sealing pin is e.g. out Molybdenum, tungsten or a copper-coated FeNi wire (Dumet).
  • the sealing pin is partly in the glass base of the lamp melted and partially protrudes into the vitreous.
  • the lamp according to the drawing has a hollow glass body 1, which integrally merges into a solid glass base 2.
  • Two power leads 3 are cast into the glass base 2, each consisting of a power supply conductor 4 and one opposite in cross section smaller sealing pin 5 exist.
  • the Power supply conductor 4 and the sealing pin 5 are with the ends bumped against each other and by a weld 6 connected.
  • the two sealing pins 5 carry in the glass body 1 a helix 7 made of tungsten.
  • a pin base low-voltage halogen lamp is provided.
  • the sealing pins 5 protrude into the glass body 1 and are directly connected to the helix 7.
  • 2 is one Cold light reflector lamp provided, in which a pin base low-voltage halogen lamp is equipped with a glass reflector 8, which with a neck over putty 9 on the glass base 2.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
EP98122035A 1997-12-10 1998-11-20 Stiftsockel-Niedervolt-Halogenlampe mit Stromzuführungsleiter Revoked EP0923109B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19754806 1997-12-10
DE19754806A DE19754806C2 (de) 1997-12-10 1997-12-10 Stiftsockel-Niedervolt-Halogenlampe mit Stromzuführungsleiter

Publications (2)

Publication Number Publication Date
EP0923109A1 EP0923109A1 (de) 1999-06-16
EP0923109B1 true EP0923109B1 (de) 2004-04-14

Family

ID=7851390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122035A Revoked EP0923109B1 (de) 1997-12-10 1998-11-20 Stiftsockel-Niedervolt-Halogenlampe mit Stromzuführungsleiter

Country Status (4)

Country Link
US (1) US5986404A (es)
EP (1) EP0923109B1 (es)
DE (1) DE19754806C2 (es)
ES (1) ES2215262T3 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4643878B2 (ja) * 1999-11-22 2011-03-02 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 高圧放電ランプ
EP1246220A1 (en) * 2001-03-26 2002-10-02 N.V. Bekaert S.A. Lead-in wire
US6791250B2 (en) * 2002-10-23 2004-09-14 Eye Lighting International Seal and flag assembly for lamp base sidewire welding
DE202004012220U1 (de) * 2004-08-04 2005-12-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Einseitig verschlossene elektrische Lampe
JP6863096B2 (ja) * 2017-06-02 2021-04-21 東芝ライテック株式会社 リード線、リード線の製造方法、および車両用電球

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1547394A (en) * 1921-08-02 1925-07-28 Gen Electric Leading-in wire for electrical incandescent lamps and similar devices
US3366826A (en) * 1966-03-02 1968-01-30 Westinghouse Electric Corp Incandescent lamp having stainless steel tie wires
DE3266343D1 (en) * 1981-07-10 1985-10-24 Emi Plc Thorn Fluorescent lamp and electrode assembly for such a lamp
US4415830A (en) * 1981-08-31 1983-11-15 General Electric Company Inlead construction for electric lamp
JPS60110815A (ja) * 1983-11-18 1985-06-17 Sumitomo Electric Ind Ltd めっき鉄線
DE9101460U1 (de) * 1991-02-08 1991-05-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Einseitig gesockelte elektrische Lampe
DE69400810T2 (de) * 1993-03-31 1997-04-30 Philips Electronics Nv Elektrische Lampe
US5528105A (en) * 1994-07-15 1996-06-18 General Electric Company Copper-steel composite lead wire and use in incandescent filament electric lamps

Also Published As

Publication number Publication date
US5986404A (en) 1999-11-16
EP0923109A1 (de) 1999-06-16
ES2215262T3 (es) 2004-10-01
DE19754806C2 (de) 1999-11-11
DE19754806A1 (de) 1999-07-01

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