EP0209094A2 - Lampe à décharge à haute pression à vapeur métallique - Google Patents

Lampe à décharge à haute pression à vapeur métallique Download PDF

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Publication number
EP0209094A2
EP0209094A2 EP86109536A EP86109536A EP0209094A2 EP 0209094 A2 EP0209094 A2 EP 0209094A2 EP 86109536 A EP86109536 A EP 86109536A EP 86109536 A EP86109536 A EP 86109536A EP 0209094 A2 EP0209094 A2 EP 0209094A2
Authority
EP
European Patent Office
Prior art keywords
discharge vessel
heat exchange
sleeve
exchange plate
high pressure
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
EP86109536A
Other languages
German (de)
English (en)
Other versions
EP0209094B1 (fr
EP0209094A3 (en
Inventor
Jürgen Dr. Heider
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 EP0209094A2 publication Critical patent/EP0209094A2/fr
Publication of EP0209094A3 publication Critical patent/EP0209094A3/de
Application granted granted Critical
Publication of EP0209094B1 publication Critical patent/EP0209094B1/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
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H01J61/523—Heating or cooling particular parts of the lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/045—Thermic screens or reflectors

Definitions

  • the invention relates to a metal vapor high-pressure discharge lamp with a discharge vessel made of translucent ceramic, which is closed at both ends in a vacuum-tight manner and which contains electrodes and the metals, metal compounds or metal alloys provided as fillings and one or more noble gases, current leads being supplied through the ends which are sealed in a vacuum-tight manner are passed through for the electrodes, and in which glass solder is used as a seal, and with metal heat exchange plates attached to the ends of the discharge vessel, which absorb the heat radiation generated in the region of the electrode spaces and emit it to the coldest points of the discharge vessel.
  • EP-PA 83 201 801.4 describes a heat exchange plate which is cylindrical and surrounds the discharge space and is fastened to the holding wire in an electrically insulated manner by means of a glass bead and two connecting rods. With all known types of attachment of the heat exchange plate either high expenditure on material and / or time is required or the positioning by clamping is not ensured. In the former case, there are increased production costs, while when the heat exchange plate is fastened, vibrations of the lamp lead to changes in the operating voltage and thus to operating parameters which deviate from the target values.
  • the object of the invention is to make the attachment of the heat exchange shield simpler and safer, on the one hand to be able to keep the operating values of the lamps within narrow tolerances and on the other hand to enable a reduction in the manufacturing costs.
  • heat exchange plates are fixed to the discharge vessel by means of glass solder.
  • the ends of the discharge vessel are preferably sealed and the heat exchange shields are fixed in one operation by means of the glass solder.
  • the respective heat exchange shield surrounds the end of the discharge vessel in the form of a sleeve, the fixation taking place in the region of an edge of the sleeve and the liquid glass solder formed in the sleeve and the discharge vessel flows into the gap.
  • the sleeve causes the melting to heat up more quickly and evenly, since the ceramic tube is surrounded by the sleeve and this is made of the same material (niobium) as the power supply.
  • a further advantage can be seen that different power levels can be produced with one type of ceramic tube with different designs of the length of the sleeve.
  • the sleeve lies against the tubular discharge vessel at least in the edge region provided for the fixation. In a preferred embodiment, the larger part of the sleeve facing the discharge space is at a certain distance from the discharge vessel.
  • the entire edge can be flanged or deep-drawn at right angles to the end face of the discharge vessel.
  • the edge of the heat accumulation collar can also be used Depressions in the form of indentations which lie on the end face of the discharge vessel.
  • the attachment is such that the heat accumulation sleeve is attached vibration-proof and potential-free to the respective ends of the discharge vessel.
  • the aluminum oxide discharge vessel 1 has a cylindrical tube 6, in the ends of each a socket-shaped plug 7 is inserted is sintered.
  • the power supply 4 holding the electrode 5 is melted gas-tight by means of the glass solder ring 3.
  • the construction described so far is conventional and known to the person skilled in the art.
  • the cylindrical heat accumulation sleeve 2 made of niobium is also placed on the end of the discharge vessel.
  • the heat accumulation sleeve 2 surrounds the tube 6 closely and is provided on its top with tabs 9 which rest on the end face 10 of the tube 6.
  • a part of the molten glass solder ring 3 flows through capillary forces into the gap formed by the tube 6 of the discharge vessel 1 and the heat accumulation collar 2, whereby the latter is held in position after the glass solder has cooled without additional operations or materials and enables a good heat exchange becomes.
  • FIG. 2 An alternative form of the heat accumulation sleeve 11 is shown in FIG. 2. All operations and also the shape of the discharge vessel 1 are identical to that of FIG. 1.
  • the heat accumulation sleeve 11 here consists of a short upper section 12 closely surrounding the discharge vessel 1, on which the tabs 9 'are formed, and of a longer one, the discharge vessel 1 with a certain distance surrounding lower section 13.
  • the advantage of this embodiment is that the glass solder fills the entire upper edge area more uniformly and thus an even narrower tolerance range of the lamp parameters is maintained in the lamps produced.
  • the conical heat accumulator acts in a similar way Schette 14 of Figure 3.
  • the discharge vessel 15 here has an upper cylindrical region of small diameter 16 and a region of larger diameter 17 flowed through by the discharge, which are connected by a conical part 18, the electrode space.
  • the conical heat accumulation collar 14 rests with its tabs 9 ′′ on the end face 19 of the discharge vessel 15 and surrounds the electrode space 18 at a certain distance after the melting and thus the fastening thereof has been carried out by means of the glass solder ring 3 '.
  • FIG. 4 shows a stepped, cylindrical heat accumulation collar 20 with a conical widening 22 facing the discharge vessel 21, which covers the electrode space of the discharge vessel 21.
  • the holding takes place during the melting process by means of the tabs 9 '' '.
  • the short upper section 23 of the heat accumulation sleeve 20 with a smaller diameter surrounds the upper end of the discharge vessel 21 closely and is fused with it in the finished lamp , while the central, cylindrical section 24 is at a certain distance from the discharge vessel 21.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
EP19860109536 1985-07-19 1986-07-11 Lampe à décharge à haute pression à vapeur métallique Expired - Lifetime EP0209094B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853525886 DE3525886A1 (de) 1985-07-19 1985-07-19 Metalldampfhochdruckentladungslampe
DE3525886 1985-07-19

Publications (3)

Publication Number Publication Date
EP0209094A2 true EP0209094A2 (fr) 1987-01-21
EP0209094A3 EP0209094A3 (en) 1989-05-24
EP0209094B1 EP0209094B1 (fr) 1992-10-14

Family

ID=6276244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860109536 Expired - Lifetime EP0209094B1 (fr) 1985-07-19 1986-07-11 Lampe à décharge à haute pression à vapeur métallique

Country Status (4)

Country Link
EP (1) EP0209094B1 (fr)
JP (1) JPS6226758A (fr)
DE (2) DE3525886A1 (fr)
HU (1) HU196675B (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716743A (en) * 1969-08-29 1973-02-13 Matsushita Electronics Corp High-pressure metal-vapor discharge tube
FR2335947A1 (fr) * 1975-12-15 1977-07-15 Gen Electric Lampe a decharge a vapeur haute pression perfectionnee
DE2928067A1 (de) * 1978-07-11 1980-01-24 Westinghouse Electric Corp Hochdruck-natriumdampfentladungslampe
US4464603A (en) * 1982-07-26 1984-08-07 General Electric Company Ceramic seal for high pressure sodium vapor lamps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716743A (en) * 1969-08-29 1973-02-13 Matsushita Electronics Corp High-pressure metal-vapor discharge tube
FR2335947A1 (fr) * 1975-12-15 1977-07-15 Gen Electric Lampe a decharge a vapeur haute pression perfectionnee
DE2928067A1 (de) * 1978-07-11 1980-01-24 Westinghouse Electric Corp Hochdruck-natriumdampfentladungslampe
US4464603A (en) * 1982-07-26 1984-08-07 General Electric Company Ceramic seal for high pressure sodium vapor lamps

Also Published As

Publication number Publication date
HUT41159A (en) 1987-03-30
JPS6226758A (ja) 1987-02-04
HU196675B (en) 1988-12-28
DE3686962D1 (de) 1992-11-19
EP0209094B1 (fr) 1992-10-14
DE3525886A1 (de) 1987-01-29
EP0209094A3 (en) 1989-05-24

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