EP0407850B1 - Hochdruckentladungslampe - Google Patents

Hochdruckentladungslampe Download PDF

Info

Publication number
EP0407850B1
EP0407850B1 EP90112590A EP90112590A EP0407850B1 EP 0407850 B1 EP0407850 B1 EP 0407850B1 EP 90112590 A EP90112590 A EP 90112590A EP 90112590 A EP90112590 A EP 90112590A EP 0407850 B1 EP0407850 B1 EP 0407850B1
Authority
EP
European Patent Office
Prior art keywords
discharge lamp
pressure discharge
lamp according
pinch
guide element
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
EP90112590A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0407850A1 (de
Inventor
Günter Jaeger
Karl Muntrich
Peter Wirtz
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 EP0407850A1 publication Critical patent/EP0407850A1/de
Application granted granted Critical
Publication of EP0407850B1 publication Critical patent/EP0407850B1/de
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
    • H01J61/30—Vessels; Containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • 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 high-pressure discharge lamps are, in particular, metal halide discharge lamps with a discharge vessel made of quartz glass.
  • Such lamps with high outputs in the order of magnitude of approximately 100 to 1000 W require a stable holding frame which holds the discharge vessel in the outer bulb.
  • deflection of the discharge vessel from the axial direction must also be prevented in the event of a shock load.
  • the object of the invention is to further simplify the structure of the holding frame in a high-pressure discharge lamp.
  • the frame structure of different lamp types e.g. with a cylindrical or elliptical outer bulb
  • the impact resistance of the lamp is improved. This was confirmed by drop and swing table tests.
  • the mechanical processability of the holding frame and thus the fully automatic assembly of the lamp is made significantly easier by the guide element according to the invention.
  • By gripping the pinch slightly it is possible for the guide element to be self-holding to the pinch is attached, which simplifies the manufacturing process.
  • the guide element is designed so that it reduces the number of welding spots to be processed.
  • the quality of the welded connections is improved by the careful choice of the material (iron coated with nickel layer, trade name "Hilumin").
  • the wavy arm allows the guide element to be welded to the support frame, which further simplifies and improves the welding.
  • the guide element adapts considerably better than the known cuffs to the individual shape of the individual pinch. This also has to do with the fact that the breaking out of quartz particles as well as crushing fractures under impact loads or resonance acceleration (e.g. when the lamp is mailed) is largely prevented.
  • Resilient tabs are particularly suitable, the width of which is small compared to the total length of the associated rectangular side. This arrangement makes it possible to equip different wattage stages of a lamp type which have different dimensions of the pinch with the same guide element.
  • the spring effect of the tabs can be increased by constricting the attachment of the tabs.
  • the invention is particularly suitable for lamps with an outer bulb with a base on one side.
  • FIG. 1 shows a metal halide discharge lamp 1 with a power consumption of 250 W. It has a cylindrical (or also elliptical) outer bulb 2 made of tempered glass. One end of the piston has a rounded tip 3, while the other end has a screw base 4. A plate base 5 sits on the screw base 4, through which two feed wires 6 extend in a known manner from the screw base into the interior of the piston. They are part of a support frame 7 for the axially arranged in the outer bulb 2 discharge vessel 8. The lead wire 6 is a b connected via a U-shaped bracket 9 led out to the near the base of the pinch seal 10 of the discharge vessel power supply.
  • the other feed wire 6a is welded to a solid metal support rod 12 which extends axially parallel in the direction of the tip 3.
  • the end of the metal support rod 12 remote from the base is angled transversely to the lamp axis and bent into a pitch circle 13 which lies against the periphery of the outer bulb at the level of the extension of the dome 3.
  • a solid nickel wire 14 is attached to the support rod 12, which is welded to the power supply line 16 which is led out of the pinch 15 remote from the base of the discharge vessel.
  • a stamped sheet metal part 17 is also attached to the metal support rod 12 by means of an angled arm 18.
  • the discharge vessel 8 is made of quartz glass. It has a cylindrical discharge volume that contains a filling of inert gas, mercury and at least one metal halide. Farther it contains two electrodes which are axially aligned with one another and which are connected to the two power supply lines 11, 16 via foils 29. The foils 29 are embedded in the two bruises 10, 15. The latter are covered with a heat exchange layer 30 which extends to the electrodes.
  • a first exemplary embodiment of the stamped sheet metal part is shown in FIGS. 2 and 3. It consists essentially of 0.5 mm thick Hilumin and has a rectangular frame 21 with rounded corners, which has two narrow sides 22 (13.5 mm wide) and two long sides 23 (approx. 22 mm long).
  • the frame 21 surrounds an approximately rectangular opening 24, the frame width being approximately 2 mm.
  • a resilient tab 25, 26 projects into the opening 24 on each of the four sides.
  • the tabs 25 on the transverse sides extend over the full length of the transverse side 22. They are bent out of the plane of the stamped sheet metal part 17 by approximately 45 °.
  • the tabs 26 on the long sides 23 are shorter by the width of the transverse tabs 25 than the long side 23 itself. They are bent out in the same direction as the other tabs 25 from the stamped sheet metal part, so that the four tabs leave an effective opening overall, which is double-T -shaped cross-section corresponds to the pinch of the discharge vessel.
  • the arm 18 is formed on one of the transverse sides 22 for attachment to the support rod 12. It is in the same direction as the tabs from the plane of the stamped sheet metal part, but bent out by 90 °.
  • the arm 18 is corrugated and thus has two humps which facilitate welding (see FIG. 6).
  • FIGS. 4 to 6 A second exemplary embodiment of the stamped sheet metal part 17 is shown in FIGS. 4 to 6.
  • the same reference numbers correspond to the same parts as in the first embodiment.
  • the length of the tabs 25 ', 26' is considerably shorter (with the same width) than in the first embodiment and is uniformly 4 mm. This corresponds to approximately 20 or 40% of the length of the associated sides 22, 23 of the frame 21. The effective opening is therefore uniformly larger.
  • the tabs 25 'on the narrow sides are tapered to 2 mm at their shoulder 27 to improve the spring action.
  • the two tabs of the transverse sides have semicircular cutouts 28 opposite one another at their free end. These are used to hold the guide element during the manufacture and supply of the guide element.
  • the construction of the second exemplary embodiment allows the guide element to be adapted particularly well to the changeable shape of the pinch in the case of different lamp types.
  • the different dimensions of the pinch are compensated for by different bending angles of the tabs.
  • An additional parameter for adapting the tabs to the pinch is that the bending point for the bending of the tabs can be varied.
  • this kink is in all tabs directly at the base of the tab on the frame. However, it can be moved towards the free end of the tab.
  • the exact shape of the pinch no longer plays an important role in this guide element. So the same element can be used equally reliably for a pinch with side beads (double T-shaped cross-section) as well as for a pinch without side beads (I-shaped cross-section).
  • the known cuffs were mainly suitable for I-shaped bruises.
  • the holding effect of the guide element can additionally be supported by corrugation on the broad sides and / or projecting lugs on the narrow sides of the bruises.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
EP90112590A 1989-07-13 1990-07-02 Hochdruckentladungslampe Expired - Lifetime EP0407850B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8908561U DE8908561U1 (de) 1989-07-13 1989-07-13 Hochdruckentladungslampe
DE8908561U 1989-07-13

Publications (2)

Publication Number Publication Date
EP0407850A1 EP0407850A1 (de) 1991-01-16
EP0407850B1 true EP0407850B1 (de) 1993-11-18

Family

ID=6841065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112590A Expired - Lifetime EP0407850B1 (de) 1989-07-13 1990-07-02 Hochdruckentladungslampe

Country Status (7)

Country Link
US (1) US5075586A (enrdf_load_stackoverflow)
EP (1) EP0407850B1 (enrdf_load_stackoverflow)
JP (1) JPH0548360Y2 (enrdf_load_stackoverflow)
KR (1) KR960000267Y1 (enrdf_load_stackoverflow)
DD (1) DD296577A5 (enrdf_load_stackoverflow)
DE (2) DE8908561U1 (enrdf_load_stackoverflow)
HU (1) HU205487B (enrdf_load_stackoverflow)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5250872A (en) * 1990-07-20 1993-10-05 Koito Manufacturing Co., Ltd. Discharge lamp unit having improved discharge tube mount
DE4230814A1 (de) * 1992-09-15 1994-03-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe
DE4230815A1 (de) * 1992-09-15 1994-03-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe und Herstellungsverfahren für eine Hochdruckentladungslampe
BE1008050A3 (nl) * 1994-01-24 1996-01-03 Philips Electronics Nv Hoge-drukontladingslamp.
US5959404A (en) * 1995-01-12 1999-09-28 Osram Sylvania Inc. Starting aid for metal halide lamps
DE19524195C1 (de) * 1995-07-03 1996-10-31 Daimler Benz Ag Einstellvorrichtung zur Neigungsverstellung eines schwenkbar angelenkten Mantelrohres einer Lenkspindel eines Kraftfahrzeuges
US5684355A (en) * 1995-08-04 1997-11-04 General Electric Company Metal strap for holding cylindrical lamp
KR100346371B1 (ko) * 1995-10-30 2002-10-31 삼성에스디아이 주식회사 고압금속증기방전램프
DE29712013U1 (de) * 1997-07-08 1998-11-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Hochdruckentladungslampe
EP1292966A1 (en) * 2000-06-07 2003-03-19 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
DE10325552A1 (de) * 2003-06-05 2004-12-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Lampe mit Außenkolben und zugehöriger Trägerkörper
WO2005001881A2 (en) * 2003-06-30 2005-01-06 Koninklijke Philips Electronics, N.V. Strapless mount for a light source and electric lamps having the same
US20070182333A1 (en) * 2004-06-29 2007-08-09 Matsushita Electric Industrial Co., Ltd. Metal halide lamp and lighting apparatus using the same
US7220046B2 (en) * 2004-07-29 2007-05-22 Hewlett-Packard Development Company, L.P. Replaceable lamp header
ITMI20050281A1 (it) * 2005-02-23 2006-08-24 Getters Spa Lampada a scarica ad alta pressione miniaturizzata contenente un dispositivo getter
DE102005013004A1 (de) * 2005-03-21 2006-09-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Umlenkkomponente für eine Leuchte und zugehörige Leuchte
CN101375364B (zh) 2005-03-31 2012-01-18 皇家飞利浦电子股份有限公司 电灯
JP4995011B2 (ja) * 2007-09-05 2012-08-08 有限会社創芸社 装飾品固定装置及びその固定装置による装飾品の固定方法
DE212010000115U1 (de) * 2009-08-14 2012-04-05 Osram Ag Hochdruckentladungslampe mit Zündhilfe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2562887A (en) * 1945-01-04 1951-08-07 Westinghouse Electric Corp Vapor lamp and system
US2671183A (en) * 1951-09-12 1954-03-02 Gen Electric Electric discharge lamp mount
US4341975A (en) * 1980-06-12 1982-07-27 General Electric Company Jacketed lamp having transversely mounted arc tube
DD215208A1 (de) * 1983-04-28 1984-10-31 Narva Rosa Luxemburg K Metallisches halteelement fuer ein entladungsgefaess einer elektrischen lampe
US4829210A (en) * 1987-01-23 1989-05-09 Gte Products Corporation Multifunctional structural member and reflector lamp employing same
DE3739008A1 (de) * 1987-11-17 1989-05-24 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochdruckentladungslampe

Also Published As

Publication number Publication date
HU904190D0 (en) 1990-12-28
DD296577A5 (de) 1991-12-05
DE59003512D1 (de) 1993-12-23
EP0407850A1 (de) 1991-01-16
JPH0322354U (enrdf_load_stackoverflow) 1991-03-07
HUT56203A (en) 1991-07-29
HU205487B (en) 1992-04-28
KR960000267Y1 (ko) 1996-01-05
DE8908561U1 (de) 1989-09-21
KR910003436U (ko) 1991-02-27
US5075586A (en) 1991-12-24
JPH0548360Y2 (enrdf_load_stackoverflow) 1993-12-24

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