EP2483913B1 - Lampe à décharge haute pression avec aide à l'amorçage - Google Patents

Lampe à décharge haute pression avec aide à l'amorçage Download PDF

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Publication number
EP2483913B1
EP2483913B1 EP10751843.3A EP10751843A EP2483913B1 EP 2483913 B1 EP2483913 B1 EP 2483913B1 EP 10751843 A EP10751843 A EP 10751843A EP 2483913 B1 EP2483913 B1 EP 2483913B1
Authority
EP
European Patent Office
Prior art keywords
capillary
discharge lamp
starting aid
pressure discharge
discharge vessel
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.)
Not-in-force
Application number
EP10751843.3A
Other languages
German (de)
English (en)
Other versions
EP2483913A1 (fr
Inventor
Thomas Brauner
Martin Fornalski
Jürgen KELLERER
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
Osram GmbH
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 Osram GmbH filed Critical Osram GmbH
Publication of EP2483913A1 publication Critical patent/EP2483913A1/fr
Application granted granted Critical
Publication of EP2483913B1 publication Critical patent/EP2483913B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers

Definitions

  • the invention relates to a high-pressure discharge lamp according to the preamble of claim 1.
  • Such lamps are in particular high-pressure discharge lamps for general lighting or for photo-optical purposes.
  • a high-pressure discharge lamp with discharge vessel is known, in which a starting aid emanating from a long frame wire.
  • the ignition aid is a separate component which extends in the direction of the discharge vessel at the level of a capillary.
  • a disadvantage of such an arrangement is that the ignition must be installed consuming and costly.
  • a high-pressure discharge lamp is known in which a film wraps around the capillary. In this case, one end of the film is connected to a hanger wire by welding. Similar things can be found in the US 2004/036416 , US 4 053 809 discloses a high pressure discharge lamp having the features of the preamble of claim 1.
  • the object of the present invention is to provide a high-pressure discharge lamp whose ignition is ensured by simple inexpensive means.
  • This object is achieved by the characterizing features of claim 1. Particularly advantageous embodiments can be found in the dependent claims.
  • a separate component is now used on the frame, which extends in the direction of a capillary.
  • the component is connected to the long power supply, the so-called.
  • Stirrup wire of the frame and preferably in an area in the vicinity of the capillary, in particular where the electrode is seated in the capillary, but is spaced from the wall of the capillary.
  • the current arrangement takes up the principle of dielectrically impeded discharge, but improves it decisively.
  • the hanger wire is designed so that an ignition aid from there as close as possible to the capillary with the opposite pole electrode or touches them.
  • a dielectric barrier discharge which ionizes the filling gas in the burner and allows a breakdown.
  • the ignition aid is a plate-like metal part.
  • the metal part is a pre-bent spring part, in particular a film or a sheet metal part.
  • a typical size for foil or sheet metal part is a rectangle with a dimension of 1 mm x 10 mm.
  • a metal part e.g. a metal foil, preferably made of molybdenum or tungsten, mechanically attached, which contacts the capillary with the electrode with the opposite potential.
  • a dielectric barrier discharge which ionizes the filling gas in the burner and allows a breakdown.
  • Characteristic of this approach is the use of a flexible film, which always contact due to their compliance with the capillary of the discharge vessel Has.
  • the film must be very thin, in any case thinner than 200 microns, preferably between 20 microns and 40 microns.
  • the film has no mechanical support. It covers the capillary over a large area.
  • the film can partially or completely cover the capillary or loop around the capillary. Preferred is a simple geometry that does not affect the production.
  • the foil is attached to the stirrup wire either by a material fit (eg by welding) or by a force fit (eg by clamping or crimping).
  • the ignition aid preferably has a minimum distance to the opposite pole current-carrying electrode, wherein the location of the smallest distance should be as close as possible to the actual discharge vessel.
  • a film attached to the capillary is very easy to realize in terms of manufacturing technology in single-ended lamps; much easier than a wire wrap the capillary.
  • this film does not require extra space in outer bulbs.
  • the film may also be coated or doped.
  • a film can be kinked well and still remains dimensionally stable thereafter. However, it can also be obtained dimensionally stable by skillful suitable arrangement.
  • the hanger wire and the capillary with the opposite pole electrode are in particular connected by a metal clip.
  • This clip causes, as explained above, a dielectrically impeded discharge, which reduces the ignition voltage.
  • the clip preferably consists of a pre-bent metal foil. The shape is chosen so that the clip rests tightly by prestressing tightly on the capillary and / or the hanger wire.
  • the clip is attached to the hanger wire.
  • the preforming must have a smaller diameter than the hanger wire, ideally between 70% and 90%.
  • the clip must be attached to the capillary. This can be done by joining the metal foils on the opposite side of the hanger wire, e.g. by welding or crimping.
  • the clip can be made from any heat resistant and electrically conductive material. Tried and tested is the production of molybdenum, and other materials such as various steels are conceivable.
  • FIG. 1 shows the structure of a high pressure discharge lamp 1 highly schematic.
  • a discharge vessel 2 which are housed in an outer bulb 3.
  • the outer feeds 4 of the discharge vessel, contacting the electrodes inside are connected to two frame wires 5 and 6.
  • a short frame wire 5 leads to a first foil 7 in a pinch 8 of the outer bulb.
  • the discharge vessel 2 has at its ends in each case a capillary 10, as known per se, and a filling containing metal halides, as also known per se , It can contain Hg, as well as noble gas.
  • Two electrodes are located in the interior of the discharge vessel, as also known per se, but not shown here.
  • the hanger wire 6 is guided substantially parallel to the axis A of the discharge vessel at this to the second capillary 10 remote from the pinch seal 8 where it is connected to the feed 4.
  • a film 11 is fastened in the direction of the stirrup wire, which is cut out approximately rectangularly.
  • the end 12 of the film extends to the hanger wire 6 and can survive something there.
  • FIG. 1a the pre-bent foil 69 prior to attachment to the discharge vessel. It has a shape similar to a letter clip with a central pitch arc 70, which encloses a circumference of more than 270 °. At the bow portion 70, two initially free legs 71 follow, which are slightly spread apart from each other. These legs are so long that they bridge the distance between capillary and hanger wire.
  • FIG. 1b shows a detail of the frame with the capillary 10.
  • the film 69 is pushed onto the capillary 10, so that the arch part 70 includes the capillary 10.
  • the free legs point roughly in the direction of the hanger wire, which sits in the middle between the thighs.
  • Figure 1c shows that the free legs 71 are then fixed to the hanger wire 6. They are pressed together and welded to the hanger wire 6, so that the finished fixed ignition aid 11 is formed.
  • FIG. 2 an embodiment is shown which is similar to FIG. 1 is constructed.
  • the film 69 is not bent symmetrically in the manner of a letter clip, but bent asymmetrically on one side in the manner of a German "ß".
  • the film 69 thus has a straight leg portion 74, from which tangentially an arch portion 75 is bent.
  • the bow part is returned in a circular shape and then bent in the direction of a leg 76.
  • This is compared to the straight leg portion 74 slightly spread outwards, but almost parallel to this.
  • the film 69 is placed on the capillary, so that the hanger wire 6 comes to rest between the two legs 74 and 76, see FIG. 2b , Then, the two legs 74 and 76 are compressed so that both touch the hanger wire 6 from two sides. Then they are welded to the hanger wire 6, so that the finished ignition aid 11 is formed.
  • FIG. 3 shows a further example of a pre-bent film 80 not belonging to the claimed invention.
  • This has a flat main body 79, which is rolled up at both ends.
  • a first end 81 is a first pitch arc with a large radius pre-bent. This radius is adapted to the outer diameter of the capillary.
  • a second partial arc with a smaller radius is pre-bent. This radius is adapted to the hanger wire diameter suitable.
  • This film 80 can be hooked simultaneously to the capillary 10 and the hanger wire 6, see FIG. 3b and then subsequently welded to the hanger wire 6. Possibly.
  • the purely mechanical fixation is already sufficient, so that welding is not necessary.
  • FIG. 4 shows another example of a pre-bent film 80 not belonging to the claimed invention.
  • the actual film body is not exclusively a flat surface 85 as in FIG. 3 but a considerable part 86, preferably 20 to 80% of the length of the main body 79, is corrugated like a concertina.
  • the main body 79 is rolled again at both ends.
  • a first end 81 a first arc of a large radius is pre-bent. This radius is adapted to the outer diameter of the capillary.
  • a second partial arc with a smaller radius is pre-bent.
  • This radius is adapted to the hanger wire diameter suitable.
  • This film 80 can be hooked simultaneously to the capillary 10 and the hanger wire 6, see FIG. 4b , and then, if necessary, then welded to the hanger wire.

Landscapes

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

Claims (5)

  1. Lampe à décharge haute pression (1) avec aide à l'amorçage et axe longitudinal (A), comprenant une enceinte de décharge (2) et une ampoule extérieure (3) dans laquelle l'enceinte de décharge (2) est logée, l'enceinte de décharge présentant deux extrémités avec des tubes capillaires (10) dans lesquels des électrodes sont fixées, un support avec un fil de traverse (6) maintenant l'enceinte de décharge dans l'ampoule extérieure, le fil de traverse (6) présentant, vers le tube capillaire de l'électrode du pôle opposé, qui n'est pas reliée à lui, une aide à l'amorçage (69) qui est conçue en tant que pièce métallique similaire à une plaque, la pièce métallique similaire à une plaque étant fixée au moins sur le tube capillaire de manière purement mécanique, le plan de la pièce métallique similaire à une plaque étant parallèle à l'axe, la pièce métallique étant un élément élastique préalablement plié et présentant comme partie centrale un arc de cercle partiel (70; 75), de manière à ce que l'élément élastique soit poussé sur le tube capillaire et entoure le tube capillaire, caractérisée en ce que deux branches (71; 74, 76) de la pièce métallique pourvues d'extrémités libres (12) s'étendent de la partie centrale au moins jusqu'aux côtés du fil de traverse situés face à elles et sont reliées à cet endroit avec le fil de traverse, et en ce que l'enceinte de décharge (2) est en céramique.
  2. Lampe à décharge haute pression selon la revendication 1, caractérisée, en outre, en ce qu'au moins une extrémité de l'aide à l'amorçage est reliée au fil de traverse par une soudure.
  3. Lampe à décharge haute pression selon la revendication 1, caractérisée, en outre, en ce que l'aide à l'amorçage (69) a une forme symétrique à la manière d'un attache-feuille.
  4. Lampe à décharge haute pression selon la revendication 1, caractérisée, en outre, en ce que l'aide à l'amorçage (69) a une forme asymétrique et présente comme partie centrale un arc de cercle partiel (75) qui prolonge tangentiellement une première branche rectiligne (74), tandis que la seconde branche (76) est pliée.
  5. Lampe à décharge haute pression selon la revendication 1, caractérisée, en outre, en ce que l'enceinte de décharge a un remplissage d'halogénure métallique.
EP10751843.3A 2009-09-30 2010-08-12 Lampe à décharge haute pression avec aide à l'amorçage Not-in-force EP2483913B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200920013182 DE202009013182U1 (de) 2009-09-30 2009-09-30 Hochdruckentladungslampe mit Zündhilfe
PCT/EP2010/061782 WO2011038975A1 (fr) 2009-09-30 2010-08-12 Lampe à décharge haute pression avec aide à l'amorçage

Publications (2)

Publication Number Publication Date
EP2483913A1 EP2483913A1 (fr) 2012-08-08
EP2483913B1 true EP2483913B1 (fr) 2014-02-26

Family

ID=42782067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10751843.3A Not-in-force EP2483913B1 (fr) 2009-09-30 2010-08-12 Lampe à décharge haute pression avec aide à l'amorçage

Country Status (6)

Country Link
US (1) US8860308B2 (fr)
EP (1) EP2483913B1 (fr)
JP (1) JP2013506941A (fr)
CN (1) CN102549709A (fr)
DE (1) DE202009013182U1 (fr)
WO (1) WO2011038975A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4846856B2 (ja) * 2010-03-03 2011-12-28 パナソニック株式会社 高輝度放電ランプ
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
DE202011103945U1 (de) * 2011-08-01 2011-11-03 Osram Ag Hochdruckentladungslampe mit Zündhilfe
US20140117845A1 (en) * 2012-11-01 2014-05-01 Ge Hungary Kft. Ignition aid and lamp comprised thereof
DE102013222577A1 (de) 2012-11-07 2014-05-08 Osram Gmbh Hochdruckentladungslampe mit Zündhilfe
CN108648984B (zh) * 2018-04-28 2019-02-22 南京炯华照明电器制造有限公司 金卤灯及其制造方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053809A (en) * 1976-06-18 1977-10-11 General Electric Company Short-arc discharge lamp with starting device
US5661367A (en) 1996-08-08 1997-08-26 Philips Electronics North America Corporation High pressure series arc discharge lamp construction with simplified starting aid
US5942840A (en) 1997-04-22 1999-08-24 Philips Electronics North America Corp. High-pressure discharge lamp with sealed UV-enhancer
US6198223B1 (en) 1998-06-24 2001-03-06 Osram Sylvania Inc. Capacitive glow starting of ceramic high intensity discharge devices
US6268698B1 (en) 1998-12-04 2001-07-31 Osram Sylvania Inc. Capacitive glow starting of high intensity discharge lamps
JP2001283781A (ja) * 2000-03-31 2001-10-12 Toshiba Lighting & Technology Corp 高圧放電ランプ、高圧放電ランプ点灯装置および照明装置
US6741034B2 (en) * 2002-08-22 2004-05-25 Osram Sylvania Inc. Starting aid for high intensity discharge lamp
CN1538495A (zh) 2003-04-17 2004-10-20 ���µ�����ҵ��ʽ���� 高压放电灯
JP4294535B2 (ja) * 2003-04-17 2009-07-15 パナソニック株式会社 高圧放電ランプ
WO2005010921A1 (fr) 2003-07-25 2005-02-03 Matsushita Electric Industrial Co., Ltd. Lampe a halogenure metallique
WO2005041835A2 (fr) 2003-10-29 2005-05-12 Tomotherapy Incorporated Systeme et procede pour l'etalonnage et le positionnement de table de traitement de radiotherapie
US7655909B2 (en) 2006-01-26 2010-02-02 L-3 Communications Corporation Infrared detector elements and methods of forming same

Also Published As

Publication number Publication date
WO2011038975A1 (fr) 2011-04-07
EP2483913A1 (fr) 2012-08-08
CN102549709A (zh) 2012-07-04
JP2013506941A (ja) 2013-02-28
DE202009013182U1 (de) 2010-11-11
US20120223638A1 (en) 2012-09-06
US8860308B2 (en) 2014-10-14

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