EP2193536A1 - Procédé de connexion d'un récipient de décharge d'une lampe à décharge avec un élément tubulaire, en particulier un tube de pompage - Google Patents

Procédé de connexion d'un récipient de décharge d'une lampe à décharge avec un élément tubulaire, en particulier un tube de pompage

Info

Publication number
EP2193536A1
EP2193536A1 EP08804486A EP08804486A EP2193536A1 EP 2193536 A1 EP2193536 A1 EP 2193536A1 EP 08804486 A EP08804486 A EP 08804486A EP 08804486 A EP08804486 A EP 08804486A EP 2193536 A1 EP2193536 A1 EP 2193536A1
Authority
EP
European Patent Office
Prior art keywords
discharge vessel
pipe section
discharge
heating
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.)
Withdrawn
Application number
EP08804486A
Other languages
German (de)
English (en)
Inventor
Josef Schlecht
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 EP2193536A1 publication Critical patent/EP2193536A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C03B23/207—Uniting glass rods, glass tubes, or hollow glassware
    • C03B23/213—Joining projections or feet
    • 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
    • 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

Definitions

  • the invention relates to a method for connecting a discharge vessel of a discharge lamp with a pipe section.
  • a discharge lamp which has a discharge vessel, which is at least partially helically formed.
  • pipe pieces can be attached as Pumprohre.
  • pump tubes serve to receive an Hg source. This can be, for example, an amalgam ball.
  • a pump tube Another function of a pump tube is to be able to perform an evacuation of the discharge vessel and a filling with a corresponding filling gas via the pump tube during the manufacture of the lamp. Another function that can be perceived by a pump tube is to be seen in the fact that this offers the possibility of flushing the discharge vessel.
  • the pipe section can provide good access to the discharge vessel, for example for introducing the Hg source, by means of a sufficiently large cross section.
  • a discharge vessel for a discharge lamp is known from EP 1 282 153 A2.
  • the inside of the 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 be, for example, an AlonC layer.
  • the pipe section or the pump tube For attaching the pipe section or the pump tube to the discharge vessel, it is necessary that a clean free wiping takes place at the connection point on the inside of the discharge vessel, so that there the protective layer is no longer present.
  • the material of the protective layer contributes to the fact that jumps can occur in the glazing between the pump tube and the discharge vessel.
  • the free wiping is possible only at accessible locations, the connection between the pipe section and the discharge vessel can also take place only at a few specific locations.
  • the free wiping at the Ansetzstelle is time-consuming and associated with a further manufacturing step. This increases the production time and, moreover, increases the costs.
  • An object of the present invention is to provide a method in which a discharge vessel of a discharge lamp with a tube piece can be easily and inexpensively poor in many places of the discharge vessel is possible. This is to be made possible in particular against the background that the occurrence of material jumps can also be prevented at the most varied connection points.
  • a discharge vessel of a discharge lamp is connected to a separate pipe section.
  • the discharge vessel is heated at the junction provided with the pipe section and the softened at the junction material of the discharge vessel is torn so that it rests against the inside of the pipe section and in the discharge vessel, a continuous hole is generated.
  • the softened material of the discharge vessel at the connection point is thus applied with its outside to the inside of the pipe section and connected thereto.
  • the connecting region between the discharge vessel and the pipe section can be produced at various points of the discharge vessel. In addition, the occurrence of material jumps in the connection area can be prevented.
  • the inside of the discharge vessel is provided with a protective layer at the connection point, it is no longer necessary for this point to be wiped free of the material of the protective layer before the discharge vessel is connected to the pipe section.
  • the method according to the invention now ensures that even if such a protective layer in the region of the connection point at the end Charge vessel is still present, this is not introduced into the explicit connection point with the pipe section and thus the occurrence of hitherto caused by the protective layer jumps in the connection area can be avoided.
  • the pipe section and the discharge vessel are preferably formed at least partially made of glass.
  • an embodiment of glass is provided.
  • Direct contact is thus produced only between the protective layer-free inside of the pipe section and the protective layer-free outside of the discharge vessel.
  • the tube piece is first positioned at a distance from the discharge vessel before being connected to the discharge vessel and the end of the tube piece facing the discharge vessel is heated.
  • the spacing is chosen such that there is not already an undesired contacting of the two components before the sufficient heating of the pipe section at the appropriate location.
  • the spacing is also so close that, in this method step, preferably the outer side of the discharge vessel is also at least slightly heated at the intended connection point with the pipe section.
  • the distance between the pipe section and the discharge vessel set during this process step depends, in particular, on the diameter of the pipe section and / or the power of the heat source, with which the heating of the pipe section and / or the discharge vessel takes place, and / or depending on the diameter of the discharge vessel at the attachment point or the connection point and / or depending on the wall thickness of the discharge vessel at the connection point.
  • a defined heating of the pipe piece end can take place by means of this method step, without the temperature of the discharge vessel being undesirably already correspondingly raised.
  • the pipe section is heated before being contacted with the discharge vessel at its the outer sides of the discharge vessel end facing by a heat source introduced into the pipe section.
  • the heat source for heating the end of the pipe section is introduced into the pipe section only over a first partial length of the pipe section starting from the end facing away from the discharge vessel. It is thus set to heat the discharge vessel facing the end of the pipe section, a first insertion position of the heat source in the pipe section, which allows the defined and precise heating of the end portion of the pipe section.
  • the outside of the discharge vessel at the connection point after the heating of the discharge vessel defined facing the end of the pipe section heated.
  • a further heating, which may have occurred during the heating of the end of the pipe section, of the outside of the discharge vessel, which has possibly already occurred during the heating of the end of the pipe section takes place.
  • the outside of the discharge vessel is heated so that a reliable application and bonding of the materials between the pipe section and the discharge vessel at the connection point Ie can be ensured.
  • the tube piece is brought into contact.
  • the softened material of the discharge vessel is acted upon by contacting the pipe section with the discharge vessel at the connection point with a gas stream. This is done in such a way that the softened material ruptures at the connection point and rests against the inside of the pipe section. Precisely because of this can be achieved in a particularly accurate and reliable manner that the softened material tears straight in this direction and position, which allows a defined application of the material with its outside to the inside of the pipe section.
  • the loading of the softened material of the discharge vessel with the gas stream can preferably take place by blowing in a corresponding gas stream via the discharge vessel.
  • a sucking gas flow through the pump tube is generated, with which the rupture of the softened material of the discharge vessel is made possible in the direction of the interior of the pipe section.
  • the inside of the discharge vessel is coated with a protective layer and a phosphor layer prior to connection to the pipe section.
  • the softened material of the discharge vessel rests like a collar on the inside of the end of the pipe section. Precisely because of this, a particularly effective connection can be achieved over the largest possible surface area.
  • an inwardly bulging bead is generated, on the inside of which then ruptures the rupturable material of the discharge vessel with its outside.
  • a sort of entanglement is thus generated by the geometries.
  • the collar-like structure at the junction of the discharge vessel after the application to the inside of the pipe section is defined in particular as a funnel-shaped.
  • the bead formed at the front end on Pipe piece preferably has a quasi-round inside in cross-section, on which then forms the torn material of the discharge vessel. In a cross-sectional view, an interlocking, hooked structure is thus produced, as it were, between the pipe section and the discharge vessel.
  • the pipe section is designed as a pump tube. It can be used both as a pump tube via which an evacuation and filling with filling gas of the discharge vessel can take place. Likewise, however, it can also be provided that the pump tube remains permanently connected to the discharge vessel and is used to receive a Hg source.
  • a single heat source is used for the total heating of the components and the corresponding locations. This is then set depending on the advanced manufacturing process in each case to the specifically mentioned and advantageous positions.
  • At least two heat sources are provided, which are then provided for heating different locations.
  • these heat sources perform the respective heating of the assigned locations simultaneously or successively.
  • An at least temporarily simultaneous heating of different locations can be provided.
  • a burner with an open flame for example a gas burner
  • a heat source can also be designed as an electrode or plasma nozzle.
  • Even a laser can as Heat source can be provided.
  • heating by passing into the interior of the pipe section can be made possible. It is advantageous in this context that the emitted light of the laser is expanded by a corresponding optics and scattered to the front edge of the pipe section for uniform heating of the entire edge there.
  • connection between the pipe section and the discharge vessel can be made particularly advantageously at any points of the discharge vessel, since it is no longer necessary to previously remove a protective layer of the discharge vessel attached to the inside. Not least, this can also reduce the production time and reduce production costs. In addition, the entire procedure can be achieved with a relatively inexpensive construction, as there is also a very simple procedure in this regard. Not least, this can also reduce the consumption of mercury, since the layer no longer needs to be removed.
  • FIG. 1 shows a side view of an embodiment of a discharge lamp produced according to the method according to the invention
  • FIG. 2 shows a side view of a further embodiment of a discharge vessel for a discharge lamp, which is connected to a pipe section;
  • FIG 3 is a schematic sectional view through a connection point between a pipe section and a discharge vessel.
  • Fig. 1 is a schematic side view of a merely exemplary embodiment of a discharge lamp I shown, which is designed as a compact fluorescent lamp.
  • the discharge lamp I comprises an enveloping bulb 1, which encloses a spiral-shaped or helically wound discharge vessel 2.
  • the discharge vessel 2 is coated on its inside with a protective layer, in particular an AlonC layer. On this protective layer, a phosphor layer is applied.
  • the discharge vessel 2 extends with its gas-tight ends 2a and 2b in the interior of a housing. 3
  • an electronic operating device (not shown) may be arranged for the discharge lamp I.
  • Both the enveloping piston 1 and the discharge vessel 2 are fixedly connected to the housing 3, wherein in this regard, for example, a foaming adhesive or the like may be provided.
  • a base 4 is fixed, which may be for example a screw base.
  • the discharge vessel 2 is composed of two helically wound sections, so that a quasi-double helix results, wherein the winding takes place about the axis A.
  • the two sections of the discharge vessel 2 are connected together at the point 5.
  • a first exhaust tube 6 is attached as a piece of pipe at the end 2a of the discharge vessel 2.
  • a Hg source 7 is introduced.
  • a second pipe section is shown as the second pumping tube 8, which is connected at the point 5 with the discharge vessel 2 and extends quasi in the axial direction within the turns of the discharge vessel 2 in the vertical direction.
  • a Hg source can also be introduced into this second pump tube 8.
  • this second pump tube 8 is used for evacuation and filling with filling gas of the discharge vessel 2 and is separated again from the discharge vessel 2 after the evacuation and filling of the discharge vessel 2. Both the location of the attachment of the second pump tube 8 and the geometry of the discharge vessel 2 are shown in FIG. 1 by way of example only.
  • the pump tube 8 it is possible for the pump tube 8 to be connected to the discharge vessel 2 at quasi arbitrary points even when the protective layer of the discharge vessel 2 has already been attached. This can be done without wiping or removing the protective layer at the intended joint.
  • the discharge vessel 2 has at least one partial area which is U-shaped.
  • a shaping in accordance with a polygonal spiral can also be provided for the geometry of the discharge vessel 2.
  • a discharge vessel 2 which likewise has a shape according to a double helix, wherein in this embodiment, the ends 2a and 2b are not oriented in a vertical direction downwards, but run out obliquely to the outside.
  • an electrode 9 extends over the end 2b into the interior of the discharge vessel 2, wherein a further electrode 10 via the end 2a of the discharge vessel 2 into the interior and thus into the discharge space of the discharge vessel 2 extends.
  • Corresponding electrodes are also present in the embodiment in Fig. 1, but not shown there.
  • both components are first manufactured separately and provided.
  • the pump tube 8 is then positioned at a distance a from the outside 11 of the discharge vessel 2 in the region of the desired connection point 12.
  • a heat source 16 for example a gas burner, is then introduced into the interior 15 of the pump tube 8. The introduction takes place via a discharge vessel 2 facing away from the end 14 of the pump tube 8 and beyond only a first part length.
  • the end 13 of the pump tube 8 facing the discharge vessel 2 is then heated.
  • the outer side 11 is also slightly heated at the connection point 12.
  • the heat source 16 in the interior 15 of the pump tube 8 is moved further in the direction of the facing end 13. Subsequently, the outer side 11 at the connection point 12 is then further heated so that a reliable connection when attaching the pump tube 8 to the outside 11 can be ensured.
  • the pump tube 8 is attached to the outer side 11 at the connection point 12.
  • a gas flow is generated in the embodiment in the interior of the discharge vessel 2, which generates the softened material of the discharge vessel.
  • tion vessel 2 at the junction 12 in the direction of the interior 15 of the pump tube 8 ruptures.
  • the gas flow generation can take place in this context, for example via one of the openings at the ends 2a or 2b.
  • the electrodes 9 and 10 shown by way of example in FIG. 2 are not yet present, so that openings accessible via the ends 2a and 2b are present.
  • the softened material of the wall of the discharge vessel 2 is torn open in the direction of the inside 17 of the pumping tube 8 such that the softened material with its outside 11 bears against the inside 17.
  • blowing through and thus rupturing of the wall material of the discharge vessel 2 takes place only when the heat source 16 is deactivated.
  • the heat source 16 is also at least temporarily active, if the blowing with the gas flow to rupture of the softened material is to take place at the connection point 12.
  • connection point 12 shown in FIG. 2 is also merely exemplary and may also be provided at other locations of the discharge vessel 2.
  • the pump tube 8 is shown connected to the discharge vessel 2 state in a schematic sectional view.
  • the front end 13 By heating the front end 13 there forms an inwardly oriented bead 19.
  • the softened torn-up material 20 of the discharge vessel 2 forms a positive fit. Due to the tearing of the wall material of the discharge vessel 2, a continuous hole 18 is generated beyond.
  • a collar-like shape of the torn-open material of the discharge vessel 2 is thus formed at the connection point 12.
  • the shaping can also be understood as a funnel-like manner, whereby, as a result of the application of the torn-open material 20 to the inner side 17 in the area of the bead 19, this bead 19 also virtually engages behind.
  • an anchoring between the pumping tube 18 and the discharge vessel 2 is formed as it were.
  • the direction of flow of the gas flow in the discharge vessel 2 is indicated by the arrow P, by means of which the force acting on the softened material of the wall of the discharge vessel 2 ruptures and thus allows the hole 18 to be formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Catching Or Destruction (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de connexion d'un récipient de décharge (2) d'une lampe à décharge (1) avec un élément tubulaire (6, 8), procédé caractérisé en ce que le récipient à décharge (2) est chauffé au point de connexion prévu avec l'élément tubulaire (6, 8), et le matériau du récipient à décharge (2) ramolli au point de connexion (12) est arraché de façon qu'il s'applique sur la partie intérieure (17) de l'élément tubulaire (6, 8), et qu'un trou traversant (18) soit produit dans le récipient à décharge (2).
EP08804486A 2007-09-27 2008-09-19 Procédé de connexion d'un récipient de décharge d'une lampe à décharge avec un élément tubulaire, en particulier un tube de pompage Withdrawn EP2193536A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007046343A DE102007046343A1 (de) 2007-09-27 2007-09-27 Verfahren zum Verbinden eines Entladungsgefäßes einer Entladungslampe mit einem Rohrstück, insbesondere einem Pumprohr
PCT/EP2008/062556 WO2009043741A1 (fr) 2007-09-27 2008-09-19 Procédé de connexion d'un récipient de décharge d'une lampe à décharge avec un élément tubulaire, en particulier un tube de pompage

Publications (1)

Publication Number Publication Date
EP2193536A1 true EP2193536A1 (fr) 2010-06-09

Family

ID=40361718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08804486A Withdrawn EP2193536A1 (fr) 2007-09-27 2008-09-19 Procédé de connexion d'un récipient de décharge d'une lampe à décharge avec un élément tubulaire, en particulier un tube de pompage

Country Status (7)

Country Link
US (1) US8079889B2 (fr)
EP (1) EP2193536A1 (fr)
JP (1) JP2010541143A (fr)
CN (1) CN101809705B (fr)
DE (1) DE102007046343A1 (fr)
RU (1) RU2469431C2 (fr)
WO (1) WO2009043741A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010063483B4 (de) * 2010-12-20 2012-09-27 Osram Ag Niederdruck-Gasentladungslampen-Körper, Niederdruck-Gasentladungslampe und Verfahren zum Herstellen eines Niederdruck-Gasentladungslampen-Körpers

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JPH01251538A (ja) * 1988-03-31 1989-10-06 Toshiba Lighting & Technol Corp ガラスバルブの連結方法
JPH0233827A (ja) * 1988-07-22 1990-02-05 Nec Home Electron Ltd 蛍光ランプ用ガラス管の接続方法
DE4027783A1 (de) * 1990-09-03 1992-04-30 Holzer Walter Gasentladungsgeraet fuer kompaktlampen
RU1800500C (ru) * 1991-02-11 1993-03-07 Ереванский Электроламповый Завод Газоразр дна лампа высокого давлени
DE4343007C2 (de) * 1993-12-16 1995-10-05 Dieter Strueber Verfahren zur Herstellung einer Entladungslampe
BE1009761A3 (nl) * 1995-10-30 1997-08-05 Philips Electronics Nv Werkwijze voor het vervaardigen van een lagedrukkwikontladingslamp en lagedrukkwikontladingslamp die met een dergelijke werkwijze is te vervaardigen.
CN2378828Y (zh) * 1999-05-26 2000-05-17 马士科技有限公司 低压汞蒸汽放电灯的冷端装置
DE10137015A1 (de) 2001-07-30 2003-02-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Entladungsgefäß mit Excimerfüllung und zugehörige Entladungslampe
JP4045887B2 (ja) * 2002-07-29 2008-02-13 松下電器産業株式会社 蛍光ランプの製造方法
JP2004087397A (ja) * 2002-08-28 2004-03-18 Matsushita Electric Ind Co Ltd 発光管の製造方法、発光管及び電球形蛍光ランプ
HU0301023D0 (en) * 2003-04-16 2003-06-28 Ge Hungary Rt Cold spot arrangement in compact discharge lamp
DE102004018104A1 (de) 2004-04-14 2005-11-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Gasentladungslampe mit Helixform des Entladungsrohres und innerem Rohrstück
WO2006046198A1 (fr) * 2004-10-26 2006-05-04 Koninklijke Philips Electronics N.V. Lampe a decharge gazeuse dotee d'un point froid a l'exterieur de son enveloppe translucide
JP4570988B2 (ja) * 2005-03-04 2010-10-27 パナソニック株式会社 発光管の製造方法、発光管および蛍光ランプ
DE102005035191A1 (de) * 2005-07-27 2007-02-01 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Niederdruckgasentladungslampe mit neuer Gasfüllung

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See references of WO2009043741A1 *

Also Published As

Publication number Publication date
RU2010116419A (ru) 2011-11-10
JP2010541143A (ja) 2010-12-24
DE102007046343A1 (de) 2009-04-02
WO2009043741A1 (fr) 2009-04-09
CN101809705B (zh) 2013-06-12
US8079889B2 (en) 2011-12-20
US20100261400A1 (en) 2010-10-14
RU2469431C2 (ru) 2012-12-10
CN101809705A (zh) 2010-08-18

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