EP1135788B1 - Procede pour inserer une tige de pompage dans une enceinte a decharge - Google Patents

Procede pour inserer une tige de pompage dans une enceinte a decharge Download PDF

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Publication number
EP1135788B1
EP1135788B1 EP00958190A EP00958190A EP1135788B1 EP 1135788 B1 EP1135788 B1 EP 1135788B1 EP 00958190 A EP00958190 A EP 00958190A EP 00958190 A EP00958190 A EP 00958190A EP 1135788 B1 EP1135788 B1 EP 1135788B1
Authority
EP
European Patent Office
Prior art keywords
opening
adapter
exhaust tube
section
frame
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
EP00958190A
Other languages
German (de)
English (en)
Other versions
EP1135788A1 (fr
Inventor
Michael Seibold
Michael Ilmer
Angela Eberhardt
Hermann Speer
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 EP1135788A1 publication Critical patent/EP1135788A1/fr
Application granted granted Critical
Publication of EP1135788B1 publication Critical patent/EP1135788B1/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
    • 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
    • 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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/385—Exhausting vessels
    • 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
    • H01J9/261—Sealing together parts of vessels the vessel being for a flat panel display
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00—Electron emission display panels, e.g. field emission display panels

Definitions

  • the present invention relates to a manufacturing method for flat discharge vessels with two housing plates connected by a flat frame.
  • the pump stem In the case of discharge vessels for discharge lamps, the pump stem is conventionally used inserted into an opening in the lamp housing, the remaining Gap must be filled with glass solder as sealing material. To do this in pasty form possibly brushed and dried several times.
  • the invention is therefore based on the technical problem, one with regard to the Inserting a pump stem improved method for manufacturing a discharge vessel specify.
  • a method for producing a flat one Discharge vessel with a frame connecting two housing plates in which a pump stem in an opening in the frame with a square inner cross section with a round outer cross section is used tightly, with between the Pump stem and the inner wall of the opening inserted a fixed intermediate piece is that a continuous to the round outer cross section of the stem Opening and a square one adapted to the square inner cross-section
  • the pump stem should close well with the inner wall of the opening, to enable a tight connection.
  • the invention is based on the fact that it is simpler overall and the Establish the most reliable connections between the pump stems and the discharge vessel leave, if an additional, conventionally not necessary part is used.
  • This is the intermediate piece according to the invention, the due to its physical shape, an adaptation of the shape between the cross section of the Pumpstengel and the inner opening cross section. This allows namely a free choice of the shape of the stem and the shape of the opening in the lamp housing of the flat spotlight.
  • pump stems with a round outer cross-section are used, which, for example as simple glass tubes, are not only easy to manufacture and to handle, but also the slightest difficulty in Show with regard to thermal stresses during the manufacturing process.
  • an angular opening can be used in the discharge vessel.
  • an angular opening is much easier to install than a round opening.
  • an angular opening can be easily made in the frame attach a flat discharge vessel, for example, that simply a Piece of the frame is completely cut out or cut out so that the opening delimited on two sides by the plates of the lamp housing of the flat spotlight is.
  • the solid intermediate piece can be produced as a semi-finished product without great expense and simplifies the process in that the fit between the adapter and pump stem or opening inner wall and intermediate piece either so far is improved that a thin glass solder layer is sufficient for the tight connection, or by adapting the shape of the intermediate piece when inserting it.
  • To the intermediate piece must be at least slightly softened in order to press the take the required shape to fit in the opening and / or on the pump stem.
  • the relevant part of the discharge vessel and the pump stem exist of glass. Then it makes sense to also use a glass material for the intermediate piece to choose.
  • the term glass material also includes so-called glass ceramics. In the case of a shape adjustment when inserting is in any case a material to choose that can be thermally softened.
  • the adapter is optimally adjusted by a shape adjustment when inserting
  • softening is necessary.
  • a material is chosen for the intermediate piece, its softening temperature (in the case of selective solid-liquid transitions means melting temperature) lower than the corresponding temperature of the material of the stem and the relevant one Part of the discharge vessel, i.e. the inner wall.
  • the softening temperature in the case of selective solid-liquid transitions means melting temperature
  • a preferred application for the method according to the invention is discharge lamps, especially those designed for dielectrically disabled discharges are, that is to say have at least one electrode, of the discharge volume is separated by a dielectric layer.
  • Such discharge lamps are also referred to as silent discharge lamps.
  • the opening in the frame can, for example, thereby arise that a glass strand used for the frame is not in its length sufficient for the scope of the shape to be formed by the frame, that is Correspondingly, the width of the opening is too short.
  • an opening in an originally essentially closed frame be cut, preferably by water jet cutting or by Saws.
  • essentially flat cut surfaces are created, see above that together with the boundaries through the plates of the discharge vessel a rectangular inner cross section of the opening results. It has already been executed that the invention by adapting the conveniently round outer cross section a pump stem to this shape the effort for the easy to manufacture square adapter overcompensated, e.g. with regard to the achievable high reliability the connection between the pump stem and the discharge vessel.
  • the required adapter can be inexpensive and simple in various ways getting produced. Injection molding, pressing or extrusion are possible, especially of glass materials (glass or glass solder). Strand shapes can also be used are produced, which then have to be cut to length. This is especially true for extrusion. When pressing, you can also use binder-free glass solder / powder be worked.
  • a glass solder is used for the intermediate piece, which with a thermoplastic binder material is mixed.
  • the thermoplastic binder material is used to shape the glass solder at relatively low temperatures and can can be baked at higher temperatures by a later step. That means, that the batch of glass solder and binder in the manufacture of an extrusion strand or a finished intermediate piece in a rather viscous state can be softened and then the glass solder itself to make a seal melted between the pump stem and the discharge vessel opening in the true sense can become liquid-like.
  • the glass solder is preferably designed so that the intermediate piece production taking advantage of the thermoplastic properties of the binder, for example by extrusion and cutting to length e.g. B. at 130 ° C-180 ° C, then the intermediate piece attached to the pump stem and by a temperature step for example 430-490 ° C is debindered and sintered and finally when joining a fusion of the entire discharge vessel at the joining temperature of the intermediate piece in the opening
  • a laser can also be used for the different temperature steps, for example for local heating of the intermediate piece inserted into the opening. This avoids large-volume heating of the discharge vessel, which can be beneficial for various reasons. Please refer to this to the parallel application "Manufacturing process for a gas discharge lamp" same applicant from the same filing date. This applies in particular to the use of infrared absorbing additives.
  • light sources or heat sources can also be used, for example infrared heaters, ovens or flames.
  • Figure 1 illustrates the method according to the invention schematically with a glass frame 1 of a silent flat radiator, which is otherwise not shown in detail. It will back to the above-mentioned application for the technology of silent flat radiators directed.
  • the glass frame 1 has an opening 2 in the form of a through flat side surfaces delimiting the gap in one side edge of the frame 1 forming glass strand.
  • the inside of the discharge vessel corresponds to the one on the right upper side of the figure.
  • a pump stem 3 with a tubular basic shape shown.
  • an inventive Intermediate piece 4 is placed, which accordingly has a through opening 5 has an inner cross section corresponding to the pump stem 3.
  • the intermediate piece 4 corresponds to that in its outer dimensions to a certain extent Frame 1 in the opening 2 missing piece. That means the outside cross section (in the longitudinal direction of the pump stem or in the direction of insertion) of the intermediate piece 4 is adapted to the shape and dimensions of the opening 2, in this case the rectangular one Cross-sectional shape of the missing frame piece of 6.5 mm x 6.5 mm at a clearance of 0.2 mm each.
  • Figures 2a and 2b show the intermediate piece 4 enlarged
  • in the left Half in Figure 2a is a side view transverse to the longitudinal direction of the stem 3 seen and in the right half in Figure 2b an elevation in the longitudinal direction of the pump stem 3 is drawn.
  • In the left side view is with dashed lines the cylindrical cross section recognizable on the right side through opening 5 indicated.
  • the opening 5 has one with the double arrow indicated inner diameter of 5 mm, the outer diameter of the Pump stem 3 corresponds to a play of 0.1 mm.
  • Typical dimensions for the opening cross section 2 are generally in the range a few mm per edge. It should be noted that the intermediate piece 4 in the sintering step shrinks to a correspondingly larger degree in extrusion Compared to the size of the opening 2 and the stem 3 must be considered.
  • Figure 3 shows the pump stem 3 in a lateral view, with the front end on the left side in Figure 3, the intermediate piece 4 from Figure 2 is placed.
  • Powdered lead borosilicate glass becomes made a moldable glass material with a thermoplastic binder system. This glass material is extruded at about 150 ° C into a strand that is has a profile according to FIG. 2b. From this strand are cut using a diamond circular saw or a hot wire cut individual spacers 4. The Intermediate pieces 4 are plugged onto conventional round tubular pump stems 3. For this purpose, the inner diameter of the opening 5 in each intermediate piece 4 is sufficient Play (e.g. 0.1 mm) compared to the outer diameter of the stem 3. The configuration from FIG. 3 is thus achieved.
  • each pump stem 3 provided with an intermediate piece 4 inserted into a suitable opening 2 of a frame 1 of a flat radiator.
  • the opening 2 is by water jet cutting before assembling the flat radiator housing been cut out of the frame.
  • the figure 1 plates of the flat radiator, not shown, with the frame over a glass solder paste loosely connected.
  • the pump stem 3 with the intermediate piece 4 in the opening 2 inserted loosely.
  • the entire structure is placed in an oven and treated with a conventional joining step at elevated temperature.
  • the plates connect firmly to the frame 1; merges at the same time the intermediate piece 4 in the opening 2 vacuum-tight.
  • the frame 1, the plates, not shown, and the pump stem 3 are not significantly softened.
  • An alternative embodiment replaces the fusion of the intermediate piece 4 during the joining step in the furnace as well as the joining step itself by means of a Irradiation with an infrared laser, with which also a vacuum-tight connection is produced between the frame 1 and the plates of the flat radiator.
  • a vacuum-tight connection is produced between the frame 1 and the plates of the flat radiator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (15)

  1. Procédé de production d'une enceinte de décharge plate, comprenant un cadre (1) reliant deux plaques d'enveloppe, caractérisé en ce que
       on insère de manière étanche dans une ouverture (2) du cadre (1) ayant une section transversale intérieure polygonale un tube (3) de pompage ayant une section transversale extérieure circulaire,
       on insère entre le tube (3) de pompage et la paroi intérieure de l'ouverture (2) une pièce (4) intermédiaire fixe qui a une ouverture (5) traversante adaptée à la section transversale extérieure circulaire du tube (3) de pompage et une section transversale extérieure polygonale adaptée à la section transversale intérieure polygonale.
  2. Procédé suivant la revendication 1, dans lequel la pièce (4) intermédiaire a une température de ramollissement plus basse que celle du tube (3) de pompage et que celle de la paroi intérieure et on la ramollit pour relier le tube (3) de pompage à la paroi intérieure, le tube (3) de pompage à la paroi intérieure restant sensiblement fixe.
  3. Procédé suivant la revendication 1 ou 2, dans lequel on enfile la pièce (4) intermédiaire avant l'insertion dans l'ouverture sur le tube (3) de pompage et on la relie à celui-ci.
  4. Procédé suivant l'une des revendications précédentes, dans lequel le cadre (1 ) est à l'endroit de l'ouverture (2) en verre et on découpe l'ouverture (2) dans le cadre (1 ) par un jet d'eau.
  5. Procédé suivant l'une des revendications précédentes, dans lequel on moule la pièce (4) intermédiaire par injection.
  6. Procédé suivant l'une des revendications 1 à 4, dans lequel on presse la pièce (4) intermédiaire.
  7. Procédé suivant l'une des revendications 1 à 4, dans lequel on produit la pièce (4) intermédiaire par extrusion et par coupe à longueur de la pièce (4) intermédiaire dans un cordon extrudé.
  8. Procédé suivant l'une des revendications précédentes, dans lequel la pièce (4) intermédiaire est essentiellement en brasure pour du verre.
  9. Procédé suivant la revendication 8, dans lequel la brasure pour du verre contient un liant thermoplastique.
  10. Procédé suivant l'une des revendications précédentes, dans lequel on relie d'une manière étanche le tube (3) de pompage et l'ouverture par fusion de la pièce (4) intermédiaire.
  11. Procédé suivant l'une des revendications précédentes en liaison avec les revendications 3 et 10, dans lequel on fritte la pièce (4) intermédiaire sur le tube (3) de pompage et on la fait fondre ensuite dans l'ouverture (2).
  12. Procédé suivant la revendication 2 ou 10, également en liaison avec une autre des revendications précédentes, dans lequel on chauffe la pièce (4) intermédiaire par un rayonnement laser.
  13. Procédé suivant la revendication 2 ou 10, également en liaison avec une autre des revendications précédentes, dans lequel on chauffe la pièce (4) intermédiaire dans un four lors d'une opération de jointoiement de l'enceinte de décharge.
  14. Procédé suivant l'une des revendications précédentes, dans lequel l'enceinte de décharge fait partie d'une lampe à décharge dans un gaz.
  15. Procédé suivant la revendication 14, dans lequel la lampe à décharge dans un gaz est conçue pour des décharges rendues incomplètes par voie diélectrique.
EP00958190A 1999-08-05 2000-07-28 Procede pour inserer une tige de pompage dans une enceinte a decharge Expired - Lifetime EP1135788B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19936864A DE19936864A1 (de) 1999-08-05 1999-08-05 Verfahren zum Einsetzen eines Pumpstengels in ein Entladungsgefäß
DE19936864 1999-08-05
PCT/DE2000/002499 WO2001011651A1 (fr) 1999-08-05 2000-07-28 Procede pour inserer une tige de pompage dans une enceinte a decharge

Publications (2)

Publication Number Publication Date
EP1135788A1 EP1135788A1 (fr) 2001-09-26
EP1135788B1 true EP1135788B1 (fr) 2004-09-22

Family

ID=7917256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00958190A Expired - Lifetime EP1135788B1 (fr) 1999-08-05 2000-07-28 Procede pour inserer une tige de pompage dans une enceinte a decharge

Country Status (10)

Country Link
US (1) US6609940B1 (fr)
EP (1) EP1135788B1 (fr)
JP (1) JP2003506845A (fr)
KR (1) KR100393240B1 (fr)
AT (1) ATE277419T1 (fr)
CA (1) CA2346428A1 (fr)
DE (2) DE19936864A1 (fr)
HU (1) HU223851B1 (fr)
TW (1) TW480544B (fr)
WO (1) WO2001011651A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6939434B2 (en) 2000-08-11 2005-09-06 Applied Materials, Inc. Externally excited torroidal plasma source with magnetic control of ion distribution
US7303982B2 (en) 2000-08-11 2007-12-04 Applied Materials, Inc. Plasma immersion ion implantation process using an inductively coupled plasma source having low dissociation and low minimum plasma voltage
US7037813B2 (en) 2000-08-11 2006-05-02 Applied Materials, Inc. Plasma immersion ion implantation process using a capacitively coupled plasma source having low dissociation and low minimum plasma voltage
TWI294547B (en) * 2005-10-28 2008-03-11 Delta Electronics Inc Exhaust pipe for a flat lamp

Family Cites Families (18)

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US2671291A (en) * 1950-06-29 1954-03-09 Rca Corp Glassworking apparatus and method
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US3778127A (en) * 1971-12-30 1973-12-11 Ibm Sealing technique for gas panel
US4205258A (en) * 1979-03-21 1980-05-27 Westinghouse Electric Corp. Internal shorting fuse for a high-intensity discharge lamp
US4414489A (en) * 1981-11-04 1983-11-08 North American Philips Electric Corp. Compact electric discharge lamp-and-ballast unit, and plug-in ballast module therefor
US4512488A (en) * 1982-05-27 1985-04-23 The United States Of America As Represented By The Secretary Of The Army Sealing tubulation and method
FR2607624B1 (fr) * 1986-11-28 1989-02-10 Videocolor Procede de fabrication d'embases pour tubes a vide
US5066257A (en) 1990-02-09 1991-11-19 Farner Peter W Process for producing flat plate illumination devices
US5471110A (en) * 1991-12-23 1995-11-28 Philips Electronics North America Corporation High pressure discharge lamp having filament electrodes
JP3336342B2 (ja) * 1993-07-22 2002-10-21 岩崎電気株式会社 メタルハライドランプの製造方法
FR2716572B1 (fr) * 1994-02-22 1996-05-24 Pixel Int Sa Queusot court pour écrans de visualisation plats, notamment à micropointes .
JP4205161B2 (ja) * 1994-12-20 2009-01-07 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 低圧水銀蒸気放電ランプ
JPH08236024A (ja) * 1995-02-28 1996-09-13 Iwaki Glass Kk ガラス製バルブとガラス製排気管
JP3150874B2 (ja) 1995-04-14 2001-03-26 スタンレー電気株式会社 平面蛍光ランプ及びその製造方法
TW344084B (en) * 1995-05-24 1998-11-01 Philips Eloctronics N V Lighting unit, electrodeless low-pressure discharge lamp, and discharge vessel for use in the lighting unit
GB9521373D0 (en) * 1995-10-18 1995-12-20 Gen Electric Electrodeless fluorescent lamp
DE19711892A1 (de) * 1997-03-21 1998-09-24 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Flachstrahler
US6129603A (en) * 1997-06-24 2000-10-10 Candescent Technologies Corporation Low temperature glass frit sealing for thin computer displays

Also Published As

Publication number Publication date
HU223851B1 (hu) 2005-02-28
HUP0103855A2 (en) 2002-05-29
KR20010089291A (ko) 2001-09-29
TW480544B (en) 2002-03-21
EP1135788A1 (fr) 2001-09-26
DE50007889D1 (de) 2004-10-28
DE19936864A1 (de) 2001-02-15
CA2346428A1 (fr) 2001-02-15
WO2001011651A1 (fr) 2001-02-15
JP2003506845A (ja) 2003-02-18
ATE277419T1 (de) 2004-10-15
US6609940B1 (en) 2003-08-26
KR100393240B1 (ko) 2003-07-31

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