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EP0453652B1 - Lampe à décharge à haute pression - Google Patents

Lampe à décharge à haute pression Download PDF

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Publication number
EP0453652B1
EP0453652B1 EP90124911A EP90124911A EP0453652B1 EP 0453652 B1 EP0453652 B1 EP 0453652B1 EP 90124911 A EP90124911 A EP 90124911A EP 90124911 A EP90124911 A EP 90124911A EP 0453652 B1 EP0453652 B1 EP 0453652B1
Authority
EP
European Patent Office
Prior art keywords
tube
discharge lamp
bimetallic strip
pressure discharge
wire
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.)
Expired - Lifetime
Application number
EP90124911A
Other languages
German (de)
English (en)
Other versions
EP0453652A2 (fr
EP0453652A3 (en
Inventor
Helmut Weske
Manfred König
Klaus Kramer
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
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0453652A2 publication Critical patent/EP0453652A2/fr
Publication of EP0453652A3 publication Critical patent/EP0453652A3/de
Application granted granted Critical
Publication of EP0453652B1 publication Critical patent/EP0453652B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/541—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch
    • H01J61/544—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch and an auxiliary electrode outside the vessel

Definitions

  • the invention relates to a high-pressure discharge lamp with a discharge tube made of ceramic and a filling of at least sodium, mercury and a noble gas according to the preamble of claim 1.
  • the high-pressure discharge lamp listed in the preamble of claim 1 is a sodium high-pressure discharge lamp, a lamp type which has great advantages owing to its high luminous efficiency. Since it has been possible to improve the color rendering properties in addition to the luminous efficacy by appropriate quantity compositions and pressure ratios, high-pressure sodium discharge lamps have also been used increasingly in areas which were previously reserved for high-pressure discharge lamps with a higher color rendering index.
  • High-pressure sodium discharge lamps with higher xenon gas pressures require an ignition aid.
  • This ignition aid normally consists of a wire lying on the outside of the discharge tube, which is electrically connected to one of the two current leads of the lamp. Since it is due to the Auxiliary wire if the lamps are used for an extended period of time, which can lead to electrolysis in the burner tube and thus to the destruction of the burner, a bimetal is connected between the power supply and the auxiliary ignition wire, which lifts the auxiliary wire from the burner tube after ignition of the high-pressure sodium discharge lamp and thus prevents electrolysis .
  • DE-OS 31 51 513 describes a high-pressure sodium discharge lamp with such an ignition aid.
  • the bimetal strip is fastened with its one end in the middle of an auxiliary ignition wire lying along the discharge tube.
  • a frame structure is mounted in the outer bulb with a fastening arm running parallel to the discharge tube, to which the other end of the bimetal is welded.
  • This frame structure increases the manufacturing costs.
  • the frame results in a much more voluminous lamp, which must be socketed on one side due to its uneven weight distribution.
  • the frame structure does not allow the lamp to be made in the form of a festoon with base contacts attached to the two ends of the envelope bulb.
  • the object of the invention is to design the ignition aid so that a frame structure in the outer bulb can be dispensed with in the case of the sodium high-pressure discharge lamp.
  • the ignition aid should be constructed as simply and inexpensively as possible.
  • a bimetallic strip, at one end of which one end of the ignition aid wire is attached and which is attached at the other end to the closer niobium tube, results in a very simple construction of the ignition aid. Due to the structure, there is no need for a frame in the envelope bulb, which requires manual assembly of the lamp.
  • the high pressure sodium discharge lamp can be manufactured fully mechanically in the form of a festoon. Due to the small outer dimensions of the festoon shape, the dimensions of the lights for this type of lamp can also be reduced.
  • the connections of bimetal and auxiliary ignition wire or niobium tube are advantageously welded.
  • the auxiliary ignition wire is made of high-melting metal, e.g. Molybdenum or tungsten.
  • the bimetal strip consists of a thermobimetal and is angled in steps to adapt to the position of the niobium tube and auxiliary ignition wire, the component with the greater coefficient of thermal expansion facing the niobium or discharge tube.
  • the lamp consists of a circular cylindrical discharge tube 1 made of aluminum oxide ceramic, in the ends of which a tungsten electrode 2, 3 is sealed in a gas-tight manner via a niobium tube 4, 5.
  • the niobium tubes 4, 5 are electrically connected via spring molded parts 6, 7 to compensate for different linear expansions and current leads 8, 9 with molybdenum sealing foils 10, 11 in the outer bulb 12.
  • the sealing foils 10, 11 are squeezed in a gas-tight manner into the ends of the circular cylindrical outer bulb 12 made of quartz.
  • the sealing foils 10, 11 embedded in the squeezes 13, 14 are in turn electrically connected to the two bases 17, 18 of the R7s type via external power supply lines 15, 16.
  • a getter 19 is also squeezed in a potential-free manner via a wire.
  • An ignition auxiliary wire 20 made of molybdenum 50 mm long and 0.4 mm thick is placed along the discharge tube 1, one end of which is welded to a thermobimetal strip 21.
  • the other end of the bimetallic strip 21 is welded to the niobium tube 4 of the electrode 2.
  • the bimetallic strip 21 has an active side made of chromium, iron and nickel, which faces the niobium tube or the discharge tube, and a passive side Chrome and iron. It has a rectangular cross section with a thickness of 0.3 mm and a width of 2 mm.
  • the bimetallic strip 21 is first brought into a stepped shape with three sections 21a, b, c, the first section 21a, which is welded to the niobium tube 4, and the third section 21c, to which the ignition aid wire 20 is welded is parallel to each other and the intermediate section 21b forms a right angle with the other two sections 21a, 21c.
  • the length of the sections 21a to 21c is dimensioned such that in the welded state the auxiliary ignition wire runs parallel to the outer edge of the discharge tube 1 and is at a distance of 0.5 mm from the discharge tube 1.
  • the angle between the first section 21a and the second section 21b is then increased using an adjusting device until the auxiliary ignition wire 21 lies against the discharge tube 1 over its entire length.
  • the section 21c experiences a kink in the direction of the auxiliary ignition wire 20.
  • a bimetal strip 21 shaped in this way, an optimal ignition aid is obtained.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Claims (5)

  1. Lampe à décharge haute pression, constituée par une ampoule extérieure (12) en quartz ou en verre, qui entoure un tube intérieur de décharge (1) en céramique, et dans laquelle une électrode (2,3) est scellée par fusion, d'une manière étanche au gaz, dans les deux extrémités du tube de décharge (1) et par l'intermédiaire de tubes respectifs en niobium (4,5), le tube de décharge (1) contenant un remplissage formé au moins par du sodium, du mercure et un gaz rare et étant équipé d'un système auxiliaire d'amorçage qui est situé dans l'ampoule extérieure (12) et est constitué par un fil auxiliaire d'amorçage (20) qui s'étend le long du tube de décharge (1) et qui est complètement séparé du tube de décharge (1) au moyen d'une bande bimétallique (21) fixée au fil auxiliaire d'amorçage (20), lorsque ce dernier est chauffé lors du fonctionnement de la lampe, caractérisée par le fait qu'une extrémité de la bande bimétallique (21) est reliée à une extrémité du fil auxiliaire d'amorçage (20) et que l'autre extrémité de la bande bimétallique (21) est reliée au tube en niobium (4) le plus proche.
  2. Lampe à décharge haute pression suivant la revendication 1, caractérisée par le fait que la bande bimétallique (21) est soudée au fil auxiliaire d'amorçage (20).
  3. Lampe à décharge haute pression suivant la revendication 1, caractérisée par le fait que la bande bimétallique (21) est soudée au tube en niobium (4).
  4. Lampe à décharge haute pression suivant la revendication 1, caractérisée par le fait que le fil auxiliaire d'amorçage (20) est réalisé en un métal à point de fusion élevé.
  5. Lampe à décharge haute pression suivant les revendications 1 à 3, caractérisée par le fait que la bande bimétallique (21) est coudée essentiellement avec une forme en paliers.
EP90124911A 1990-04-27 1990-12-20 Lampe à décharge à haute pression Expired - Lifetime EP0453652B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9004811U 1990-04-27
DE9004811U DE9004811U1 (de) 1990-04-27 1990-04-27 Hochdruckentladungslampe

Publications (3)

Publication Number Publication Date
EP0453652A2 EP0453652A2 (fr) 1991-10-30
EP0453652A3 EP0453652A3 (en) 1992-03-25
EP0453652B1 true EP0453652B1 (fr) 1995-08-30

Family

ID=6853294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124911A Expired - Lifetime EP0453652B1 (fr) 1990-04-27 1990-12-20 Lampe à décharge à haute pression

Country Status (5)

Country Link
US (1) US5079479A (fr)
EP (1) EP0453652B1 (fr)
JP (1) JP2597525Y2 (fr)
KR (1) KR0110029Y1 (fr)
DE (2) DE9004811U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007679A1 (de) * 2005-02-19 2006-08-31 Hella Kgaa Hueck & Co. Brenner für eine Gasentladungslampe mit Zuleitungen
DE102005007680A1 (de) * 2005-02-19 2006-08-31 Hella Kgaa Hueck & Co. Gasentladungslampe, insbesondere für Kraftfahrzeugscheinwerfer

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325017A (en) * 1992-03-27 1994-06-28 U.S. Philips Corporation High-pressure discharge lamp having solid state getter mounted on bimetallic element
DE69323026T2 (de) * 1992-10-08 1999-07-01 Koninklijke Philips Electronics N.V., Eindhoven Hochdruckentladungslampe
US5355053A (en) * 1992-11-24 1994-10-11 Osram Sylvania Inc. High pressure sodium lamp starting aid
JP4112638B2 (ja) * 1998-03-19 2008-07-02 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 起動アンテナを有する短アーク放電ランプを具えるユニット
DE19911727A1 (de) * 1999-03-16 2000-09-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Natriumhochdrucklampe mit Zündhilfe
US6538377B1 (en) * 2000-11-03 2003-03-25 General Electric Company Means for applying conducting members to arc tubes
DE10262017B4 (de) * 2002-02-22 2010-05-06 Trumpf Laser Gmbh + Co. Kg Pumplichtquelle für laseraktive Medien
DE102006033871A1 (de) * 2006-07-21 2008-01-24 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Entladungslampe mit Zündhilfselement
KR100817485B1 (ko) * 2007-08-28 2008-03-31 김선호 방전제어전극이 구비된 방전소자 및 그 제어회로
US8766518B2 (en) 2011-07-08 2014-07-01 General Electric Company High intensity discharge lamp with ignition aid
US8659225B2 (en) 2011-10-18 2014-02-25 General Electric Company High intensity discharge lamp with crown and foil ignition aid
WO2014088733A1 (fr) * 2012-12-06 2014-06-12 General Electric Company Aides à l'allumage à réseau de couche conductrice
RU2673561C1 (ru) * 2016-06-14 2018-11-28 Плусрайт Электрик (Чайна) Ко., Лтд Поддерживающая высокоинтенсивную фотосинтетически пригодную к использованию радиацию высоковольтная натриевая лампа со способствующим запуску переключателем
CN105895499A (zh) * 2016-06-14 2016-08-24 普罗斯电器（中国）有限公司 高par维持率型高压钠灯
NL2017507B1 (en) * 2016-09-21 2018-03-29 Aruna Lighting Holding B V Discharge lamp

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2284103A (en) * 1939-09-20 1942-05-26 Gen Electric Thermal switch
US3755708A (en) * 1972-06-02 1973-08-28 Gte Sylvania Inc Sodium vapor lamps having improved starting means
NL7503243A (nl) * 1975-03-19 1976-09-21 Philips Nv Gas- en/of dampontladingslamp.
JPS51135192A (en) * 1975-05-19 1976-11-24 Hitachi Ltd Discharge lamp
JPS53117271A (en) * 1977-03-22 1978-10-13 Hitachi Ltd High pressure sodium vapor lamp
JPS54479A (en) * 1977-06-03 1979-01-05 Hitachi Ltd Mercury lamp of the type started by preheater
US4633135A (en) * 1980-12-29 1986-12-30 General Electric Company Starting aid for high pressure sodium vapor lamp
NL8104282A (nl) * 1981-09-17 1983-04-18 Philips Nv Hogedrukmetaaldampontladingslamp.
JPS6237866A (ja) * 1985-08-09 1987-02-18 Matsushita Electronics Corp 高圧ナトリウムランプ
DE8702658U1 (de) * 1987-02-20 1987-04-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Hochdruckentladungslampe
US4902937A (en) * 1988-07-28 1990-02-20 General Electric Company Capacitive starting electrodes for hid lamps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007679A1 (de) * 2005-02-19 2006-08-31 Hella Kgaa Hueck & Co. Brenner für eine Gasentladungslampe mit Zuleitungen
DE102005007680A1 (de) * 2005-02-19 2006-08-31 Hella Kgaa Hueck & Co. Gasentladungslampe, insbesondere für Kraftfahrzeugscheinwerfer

Also Published As

Publication number Publication date
DE9004811U1 (de) 1990-07-05
JPH0499353U (fr) 1992-08-27
KR0110029Y1 (en) 1997-11-24
EP0453652A2 (fr) 1991-10-30
EP0453652A3 (en) 1992-03-25
US5079479A (en) 1992-01-07
DE59009592D1 (de) 1995-10-05
JP2597525Y2 (ja) 1999-07-05

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