EP0369371A2 - Procédé pour fabriquer une ampoule de lampe - Google Patents

Procédé pour fabriquer une ampoule de lampe Download PDF

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Publication number
EP0369371A2
EP0369371A2 EP89120990A EP89120990A EP0369371A2 EP 0369371 A2 EP0369371 A2 EP 0369371A2 EP 89120990 A EP89120990 A EP 89120990A EP 89120990 A EP89120990 A EP 89120990A EP 0369371 A2 EP0369371 A2 EP 0369371A2
Authority
EP
European Patent Office
Prior art keywords
lamp vessel
capillaries
lamp
pinch
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Withdrawn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
EP89120990A
Other languages
German (de)
English (en)
Other versions
EP0369371A3 (fr
Inventor
Clemens Barthelmes
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 EP0369371A2 publication Critical patent/EP0369371A2/fr
Publication of EP0369371A3 publication Critical patent/EP0369371A3/fr
Withdrawn legal-status Critical Current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
    • H01J9/32—Sealing leading-in conductors
    • H01J9/323—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device
    • H01J9/326—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device making pinched-stem or analogous seals
    • 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
    • H01J9/40—Closing vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/26—Closing of vessels

Definitions

  • the invention relates to a method for producing a lamp vessel with the features designated in the preamble of the main claim.
  • the invention is suitable for the production of low-power metal halide discharge lamps, the body emitting the visible radiation being the discharge vessel and the lamp vessel to be produced being the envelope bulb of the lamp.
  • the invention is also applicable to incandescent lamps for general lighting, which can be designed with or without an envelope bulb.
  • Such lamps are known from U.S. Patents 4,278,050, 4,658,177, 4,717,852 and 4,851,735.
  • the manufacture of such lamp vessels was carried out in such a way that a pump tube was attached to the tapered end of a quartz tube and the quartz tube was sealed at the other end with the power supply lines for the discharge vessel or the halogen burner by a pinch.
  • the envelope flask was then evacuated at the rinsing pumping station and then the pump tube was briefly removed. This process has several disadvantages.
  • the object of the invention is to avoid the disadvantages described above by means of another manufacturing process.
  • the process for producing a lamp vessel is characterized according to the invention by the process steps listed in the main claim.
  • the further details for the manufacture of the lamp vessel result from the subclaims.
  • the function of the pump tube is taken over by the two cannulas or capillaries, which, after the squeeze has been carried out, run on both sides in the plane of the power supply lines stand.
  • These cannulas are created by the special design of the main and side jaws.
  • the method also has the advantage that the actual sealing, i.e. the melting of the cannulas, can take place after the pumping time has elapsed at the pump nozzle by means of a pointed punctiform flame in the center of the side cheek of the pinch seal, so that the thermal load on the pump rubbers sealing the pump nozzle remains low.
  • the method described is also suitable for mechanized production, so that, in addition to the qualitative advantages, a larger quantity and moreover can be produced even more economically.
  • the manufacturing process is particularly suitable for pump-tube-free manufacture of envelope pistons squeezed on one side for discharge vessels, but also for halogen incandescent lamps.
  • 1 to 4 first describe the method steps for closing an envelope bulb for a high pressure metal halide discharge lamp.
  • FIGS. 1a and 1b Different processing steps on the squeezing machine are shown in FIGS. 1a and 1b.
  • a discharge vessel 2 is arranged, on the pair of inner power supply lines 3, a pair of sealing foils 4 and in turn a pair of outer power supply lines 5 is attached.
  • the outer pair of power leads 5 is clamped in an interchangeable receptacle 6.
  • the interchangeable receptacle 6 is provided on its outer surface with resilient elements (not shown) known to those skilled in the art. These are quasi supported on the inner wall of the envelope bulb 1 and thereby hold the exchangeable receptacle by themselves.
  • the defined position of the discharge vessel 2 within the enveloping bulb 1 is achieved by lowering a plunger as far as a stop for inserting the exchangeable receptacle 6 into the enveloping bulb 1 is, wherein the envelope piston 1 is held within the holder 7.
  • This process is also well known to the person skilled in the construction of fixtures and is therefore not shown separately.
  • the envelope is now piston 1 in the area of the sealing films 4 is heated and at the same time flushed with nitrogen N2 through a flushing cannula 9 which projects through an axial opening through the interchangeable receptacle 6 into the interior of the envelope piston 1 (FIG. 1a).
  • the rinsing process is carried out for a period of approx. 10 s and a quantity of approx. 50 1 / h to approx. 500 1 / h (depending on the vessel volume). This is intended to remove contaminants within the lamp vessel.
  • the squeezing process is carried out by moving the squeeze jaws 10 (FIG. 1b) together.
  • the pinch 11 comprises only the immediate area of the sealing foils 4, so that the discharge vessel 2 is securely held, but a capillary 12 remains in the edge region of the envelope bulb 1 adjacent to the sealing foils 4.
  • the illustration of the shape of the squeeze jaws 10 and the cross-sectional shape of the squeeze 11 thus obtained is shown in FIGS. 2a to 2c.
  • the crimping jaws 10 consist of an opposing pair of main crimping jaws 10 'and a pair of side jaws 10' arranged laterally for this purpose, which in the closed state, that is to say during the crimping process (FIG. 2b), prevent quartz glass from escaping from the crimp 11 at the side should.
  • the arrows indicate the direction of movement of the crimping jaws 10 during the crimping process.
  • the opposing ones Active crushing surfaces of the main crushing jaws 10 have a course which, starting from the center, is initially guided in parallel and then shows approximately in the outer third with a steep slope (preferably angled at approximately 60 °) to the edge widening or recess 14.
  • conventional main crushing jaws have a step-shaped edge recess in the outer sixth of the active crushing surface.
  • the side jaws 10 ⁇ of the present invention have a flat squeeze surface 15. In this way, the two capillaries 12 (FIG. 2c) remain in the edge region of the pinch seal 11 and on the level of the sealing foils 4, which replace the previously used pump tube and through which the envelope piston 1 is later evacuated.
  • the envelope piston 1 provided with the pinch 11 and the capillaries 12 is then clamped in a pump connection 16 (FIG. 3).
  • the pump rubber 17 is used for sealing during the pumping process.
  • the pump nozzle 16 is connected to a vacuum pump VC, by means of which the envelope piston 1 is evacuated via the capillaries 12.
  • the enveloping piston 1 is heated from the outside in the side cheeks 11 'of the pinch 11 and thus the still open capillaries 12 are closed.
  • the lamp according to 19 (Fig. 4) is now evacuated and sealed. Only the two melting points 20 remain in the pinching area. Neither the discharge vessel 2 nor the envelope bulb 1 have a disruptive pump tube. After removal from the pump nozzle 16, this is now over the pinch 11 protruding pipe section 1 ⁇ of the envelope piston 1 separated.
  • the lamp vessel 19 thus obtained in the example described having a discharge vessel 2 with a metal halide filling, is provided in FIG. 5a with a base 21 of the G12 type.
  • a getter 22 is also fastened here within the envelope piston 1 and is intended to absorb any residual impurities.
  • FIG. 5b shows the envelope bulb 22 of a halogen incandescent lamp with filament 19b as the lamp vessel produced as described above.
  • the halogen glow burner 10 ' is made of tempered glass.
  • the envelope flask (made of quartz glass) is also evacuated. It is equipped with a base 32 of type E 27.
  • FIG. 6 shows the only bulb of an incandescent lamp made of tempered glass as the lamp vessel 22 produced as described above.
  • the two power supply lines 14 ' are in one piece and without sealing films through the pinch seal.
  • the required lamp filling consisting of inert gas, possibly with the addition of halogen components, can also be supplied via the capillaries after evacuation.
  • the filling procedure is essentially the same as in the parallel application with the same title (Az .: VPA 88 P 5522 E).

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
EP19890120990 1988-11-15 1989-11-13 Procédé pour fabriquer une ampoule de lampe Withdrawn EP0369371A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883838696 DE3838696A1 (de) 1988-11-15 1988-11-15 Verfahren zur herstellung eines lampengefaesses
DE3838696 1988-11-15

Publications (2)

Publication Number Publication Date
EP0369371A2 true EP0369371A2 (fr) 1990-05-23
EP0369371A3 EP0369371A3 (fr) 1991-06-19

Family

ID=6367226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890120990 Withdrawn EP0369371A3 (fr) 1988-11-15 1989-11-13 Procédé pour fabriquer une ampoule de lampe

Country Status (3)

Country Link
EP (1) EP0369371A3 (fr)
JP (1) JPH02236948A (fr)
DE (1) DE3838696A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810623A2 (fr) * 1996-05-28 1997-12-03 Schott Glaswerke Procédé de fabrication d'une lampe et lampe fabriquée suivant ledit procédé
EP1442469A1 (fr) * 2001-10-11 2004-08-04 Advanced Lighting Technologies, Inc. Procede de fabrication d'une ampoule electrique comportant une enveloppe exterieure remplie de gaz

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR700838A (fr) * 1929-11-07 1931-03-07 Machine pour la fabrication de lampes électriques à incandescence et articles analogues
US3810684A (en) * 1971-04-14 1974-05-14 Thorn Electrical Ind Ltd Lamps
JPS54149284A (en) * 1978-05-16 1979-11-22 Toshiba Corp Sealing method for bulb housing
EP0183403A2 (fr) * 1984-11-24 1986-06-04 Thorn Emi Plc Traversées de fils conducteurs dans les pincements

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR700838A (fr) * 1929-11-07 1931-03-07 Machine pour la fabrication de lampes électriques à incandescence et articles analogues
US3810684A (en) * 1971-04-14 1974-05-14 Thorn Electrical Ind Ltd Lamps
JPS54149284A (en) * 1978-05-16 1979-11-22 Toshiba Corp Sealing method for bulb housing
EP0183403A2 (fr) * 1984-11-24 1986-06-04 Thorn Emi Plc Traversées de fils conducteurs dans les pincements

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 4, Nr. 13 (M-90), 30. Januar 1980; & JP-A-54 149 284 (SHIBAURA) 22-11-1979 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810623A2 (fr) * 1996-05-28 1997-12-03 Schott Glaswerke Procédé de fabrication d'une lampe et lampe fabriquée suivant ledit procédé
EP0810623A3 (fr) * 1996-05-28 1998-03-04 Schott Glaswerke Procédé de fabrication d'une lampe et lampe fabriquée suivant ledit procédé
EP1442469A1 (fr) * 2001-10-11 2004-08-04 Advanced Lighting Technologies, Inc. Procede de fabrication d'une ampoule electrique comportant une enveloppe exterieure remplie de gaz
EP1442469A4 (fr) * 2001-10-11 2006-05-24 Advanced Lighting Tech Inc Procede de fabrication d'une ampoule electrique comportant une enveloppe exterieure remplie de gaz
CN100555518C (zh) * 2001-10-11 2009-10-28 现代照明技术有限公司 制造有充气外壳的电灯的方法

Also Published As

Publication number Publication date
JPH02236948A (ja) 1990-09-19
DE3838696A1 (de) 1990-05-17
EP0369371A3 (fr) 1991-06-19

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