WO2009100971A1 - Procédé de fabrication d’une enceinte pour une lampe à décharge - Google Patents

Procédé de fabrication d’une enceinte pour une lampe à décharge Download PDF

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Publication number
WO2009100971A1
WO2009100971A1 PCT/EP2009/050692 EP2009050692W WO2009100971A1 WO 2009100971 A1 WO2009100971 A1 WO 2009100971A1 EP 2009050692 W EP2009050692 W EP 2009050692W WO 2009100971 A1 WO2009100971 A1 WO 2009100971A1
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
bulges
gas pressure
discharge
heated
Prior art date
Application number
PCT/EP2009/050692
Other languages
German (de)
English (en)
Inventor
Josef Schlecht
Original Assignee
Osram Gesellschaft mit beschränkter Haftung
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 Gesellschaft mit beschränkter Haftung filed Critical Osram Gesellschaft mit beschränkter Haftung
Publication of WO2009100971A1 publication Critical patent/WO2009100971A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/26—Sealing together parts of vessels
    • H01J9/265—Sealing together parts of vessels specially adapted for gas-discharge tubes or lamps
    • H01J9/266—Sealing together parts of vessels specially adapted for gas-discharge tubes or lamps specially adapted for gas-discharge lamps
    • 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
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path

Definitions

  • the invention relates to a method for producing a discharge vessel for a discharge lamp, in which a first and at least one second vessel part are provided and connected to one another.
  • Discharge lamps are known in various design and use.
  • discharge lamps with straight tubular discharge vessels are also state of the art, as are those which have multiply curved discharge vessels.
  • discharge vessels for discharge lamps are known, which are composed of several parts, wherein the different parts of the discharge vessel can be U-shaped.
  • a phosphor layer is applied to the inside of such discharge vessels.
  • a discharge vessel for a discharge lamp in which connection the inside of this discharge vessel is coated with a protective layer and a phosphor layer.
  • the protective layer is mounted directly on the inside of the discharge vessel and may for example be an AlonC layer.
  • a first and at least one second vessel part are provided and these interconnected. Both vessel parts are heated at intended connection areas and the heated and softened vessel material of the vessel parts is in each case pressed outwards and in each case an outwardly facing bulge is generated.
  • the bulges are connected to each other and by changing a gas pressure in at least one vessel part, the junction of the bulges is broken. As a result, a coherent discharge vessel is produced simply and with little effort, and material jumps at the connection point can be prevented by the connection thus produced.
  • An increase in the gas pressure is preferably carried out in a vessel part in order to break through the junction of the bulges.
  • the heated and softened vessel material in the area of the bulge can be easily and nevertheless very precisely torn open, so that a continuous connection in the form of a channel-like connection with the other vessel part can be ensured. This is particularly advantageous in that the joint can be made more robust against material jumps.
  • a reduction of the gas pressure is carried out in order to break through the junction of the bulges.
  • a breakdown and tearing of the bulges at the connection point can be made possible by a reduction and thus, as it were, a vacuum created in relation to the previously set pressure. This is another reason why Hentig created which ensures a more robust joint and material jumps can be reduced.
  • the bulges are interconnected prior to varying the gas pressure to produce the breach at the juncture of the bulges. This makes it particularly easy and low-effort to ensure that the connection can be made targeted and the breakthrough is made possible very precisely.
  • the outside is heated at the intended connection area and an increase in the gas pressure is generated in the interior of the vessel part.
  • at least one generated bulge is further heated before and / or during the connection with the other bulge, in particular centrally heated on the outside.
  • the aperture can be subsequently improved by generating a pressure change.
  • a particularly suitable procedure can be created by this procedure.
  • the inner sides of the vessel parts are coated prior to bonding with a protective layer, in particular AlonC.
  • a phosphor layer is preferably attached to the inside of the vessel parts.
  • the invention provides a relatively simple method which requires relatively little technical effort for production. Not least, this can also be achieved a minimization of mercury consumption of the lamp, since the protective layer is not removed.
  • the change in gas pressure is performed to break the junction of the bulges for a period of a few milliseconds. Moreover, it is particularly advantageous if the change in the gas pressure is minimally generated, so that strong pressure surges are avoided. This can prevent unwanted tearing or unwanted blowing away of the softened vessel material.
  • the gas in the vessel parts which is pressure-changed to rupture the junction of the bulges, is the air therein at that stage of manufacture of the discharge vessel. It can also be provided that specific ambient gases are already added to this ambient air.
  • FIG. 1 shows a perspective view of a discharge lamp produced by a method according to the invention
  • FIG. 2 shows a schematic representation of a first production state of the discharge vessel
  • Fig. 3 is a schematic representation of a second state of manufacture of the discharge vessel
  • FIG. 4 shows a schematic representation of a third manufacturing state of the discharge vessel of the discharge lamp.
  • FIG. 1 shows a perspective view of an embodiment of a discharge lamp 1, which is designed as a compact fluorescent lamp.
  • the discharge lamp 1 comprises a discharge vessel 2 which has a first vessel part 3 and a second vessel part 4.
  • the two vessel parts 3 and 4 are designed as U-shaped tubes, which are connected to each other, so that a common contiguous discharge space in the interior of the vessel parts 3 and 4 is formed.
  • the design of the discharge vessel 2 and the shape and geometry of the vessel parts 3 and 4 is merely exemplary and can also be provided in another embodiment.
  • the two vessel parts 3 and 4 are connected to each other by a connecting web 5.
  • the discharge lamp 1 comprises a housing 6, in which the discharge vessel 2 extends and in which an operating device for the discharge lamp 1 may be provided and arranged.
  • FIG. 2 shows a production stage in which the two vessel parts 3 and 4 are provided separately and separately from one another, wherein the insides of the vessel parts 3 and 4 are coated with a protective layer, in particular an AlonC layer, and a phosphor layer.
  • a protective layer in particular an AlonC layer, and a phosphor layer.
  • the glass material of the vessel part 3 is heated on the outside.
  • heating of the glass material of the second vessel part 4 on the outer side in the region of the junction 8 provided with the vessel part 3 is carried out.
  • a pressure of the gas therein is in both vessel parts 3 and 4 generated in the interior, which is so large that the softened glass material bulges at the connection points 7 and 8 to the outside and each bulge 9 and 10 on the vessel parts 3 and 4 be generated.
  • a joining of the bulges 9 and 10 and thus a direct contacting of these performed and a connection point 11 generated can be done either by moving the vessel parts 3 and 4 toward one another or by arranging them relatively close to one another starting from the representation in FIG. 2 in a position defined there and the bulges 9 and 10 being produced so large that they are touch each other automatically.
  • the gas pressure in the interior of the first vessel part 3 is then further increased and, at the same time, the gas pressure in the interior of the second vessel part 4 is reduced.
  • the pressure increase on the one hand and the pressure reduction on the other hand is generated for a relatively short period of time, in particular a few milliseconds.
  • a free wiping of the inner sides of the vessel parts 3 and 4 in the region of the connection points 7 and 8 is thus no longer required before generating the bulges 9 and 10 and the subsequent connection according to the illustrations in FIGS. 3 and 4.
  • the free wiping is thus limited only to the areas in which the vessel parts 3 and 4 are squeezed before the gas-tight fusion, in particular in the areas in which the electrodes extend from the outside into the interior of at least one vessel part 3 or 4.
  • FIGS. 2 to 4 The position and representations of the vessel parts 3 and 4 in FIGS. 2 to 4 are only to be understood symbolically, the basic arrangement in the actual embodiment is shown by the completed discharge lamp 1 GE measure the illustration in Fig. 1 shown.
  • the vessel parts 3 and 4 with their U-shaped design are virtually positioned side by side or parallel to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

L'invention concerne un procédé de fabrication d’une enceinte (2) pour une lampe à décharge (1), selon lequel on fournit une première partie (3) et au moins une deuxième partie (4) d’enceinte et on les relie. Les deux parties d’enceinte (3, 4) sont chauffées dans les zones de liaison prévues (7, 8), et le matériau d’enceinte chauffé et ramolli des parties d’enceinte (3, 4) est respectivement repoussé vers l’extérieur, produisant ainsi un bossage respectif (9, 10) dirigé vers l’extérieur. Ces bossages (9, 10) sont reliés entre eux, et le point de liaison (11) des bossages (9, 10) est rompu en modifiant une pression de gaz dans au moins une partie d’enceinte (3, 4).
PCT/EP2009/050692 2008-02-14 2009-01-22 Procédé de fabrication d’une enceinte pour une lampe à décharge WO2009100971A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008009029.8 2008-02-14
DE200810009029 DE102008009029A1 (de) 2008-02-14 2008-02-14 Verfahren zum Herstellen eines Entladungsgefäßes für eine Entladungslampe

Publications (1)

Publication Number Publication Date
WO2009100971A1 true WO2009100971A1 (fr) 2009-08-20

Family

ID=40547792

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/050692 WO2009100971A1 (fr) 2008-02-14 2009-01-22 Procédé de fabrication d’une enceinte pour une lampe à décharge

Country Status (2)

Country Link
DE (1) DE102008009029A1 (fr)
WO (1) WO2009100971A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010003348A1 (de) * 2010-03-26 2011-09-29 Osram Gesellschaft mit beschränkter Haftung Verfahren zum Verbinden von hohlen Glaskörpern sowie Entladungsgefäß
DE102010063483B4 (de) * 2010-12-20 2012-09-27 Osram Ag Niederdruck-Gasentladungslampen-Körper, Niederdruck-Gasentladungslampe und Verfahren zum Herstellen eines Niederdruck-Gasentladungslampen-Körpers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4530710A (en) * 1983-10-24 1985-07-23 Gte Products Corporation Low-pressure arc discharge lamp having parallel discharge tubes with an arc-containing interconnecting channel; and method of manufacturing same
EP0622831A1 (fr) * 1993-04-27 1994-11-02 Mass Technology (H.K.) Ltd. Procédé de fabrication d'une lampe à décharge de mercure à basse pression
DE4442200A1 (de) * 1994-11-17 1996-05-23 Promatec Gmbh Berlin Verfahren zur Verbindung von Gasentladungsröhren sowie aus mehreren Gasentladungsröhren gebildetes Gasentladungsgefäß
EP1282153A2 (fr) * 2001-07-30 2003-02-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Ampoule de décharge avec un remplissage d'excimère, lampe à décharge correspondente et procédé de fabrication de l'ampoule de décharge
US20050218812A1 (en) * 2002-06-04 2005-10-06 Van Den Brakel Ronald A Low-pressure mercury vapor discharge lamp and compact fluorescent lamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4530710A (en) * 1983-10-24 1985-07-23 Gte Products Corporation Low-pressure arc discharge lamp having parallel discharge tubes with an arc-containing interconnecting channel; and method of manufacturing same
EP0622831A1 (fr) * 1993-04-27 1994-11-02 Mass Technology (H.K.) Ltd. Procédé de fabrication d'une lampe à décharge de mercure à basse pression
DE4442200A1 (de) * 1994-11-17 1996-05-23 Promatec Gmbh Berlin Verfahren zur Verbindung von Gasentladungsröhren sowie aus mehreren Gasentladungsröhren gebildetes Gasentladungsgefäß
EP1282153A2 (fr) * 2001-07-30 2003-02-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Ampoule de décharge avec un remplissage d'excimère, lampe à décharge correspondente et procédé de fabrication de l'ampoule de décharge
US20050218812A1 (en) * 2002-06-04 2005-10-06 Van Den Brakel Ronald A Low-pressure mercury vapor discharge lamp and compact fluorescent lamp

Also Published As

Publication number Publication date
DE102008009029A1 (de) 2009-08-20

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