EP0780883A1 - Lampe à deux scellements par pincement - Google Patents

Lampe à deux scellements par pincement Download PDF

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Publication number
EP0780883A1
EP0780883A1 EP96118985A EP96118985A EP0780883A1 EP 0780883 A1 EP0780883 A1 EP 0780883A1 EP 96118985 A EP96118985 A EP 96118985A EP 96118985 A EP96118985 A EP 96118985A EP 0780883 A1 EP0780883 A1 EP 0780883A1
Authority
EP
European Patent Office
Prior art keywords
lamp
pinched
contact element
electric lamp
sides according
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
EP96118985A
Other languages
German (de)
English (en)
Other versions
EP0780883B1 (fr
Inventor
Helmut Berger
Jürgen Eder
Hans Liermann
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 EP0780883A1 publication Critical patent/EP0780883A1/fr
Application granted granted Critical
Publication of EP0780883B1 publication Critical patent/EP0780883B1/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
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/52—Means forming part of the tube or lamps for the purpose of providing electrical connection to it directly applied to or forming part of the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • H01K1/24—Mounts for lamps with connections at opposite ends, e.g. for tubular lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/44—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp directly applied to, or forming part of, the vessel

Definitions

  • the invention is based on a lamp pinched on both sides according to the preamble of claim 1.
  • incandescent and discharge lamps include both incandescent and discharge lamps. These are, in particular, halogen incandescent lamps in the form of a festoon, but also discharge lamps, in particular metal halide lamps, for example UV lamps for cosmetic and medical applications. Another area of application is high pressure sodium lamps.
  • Such lamps are usually provided with bases which consist of a ceramic sleeve and a metallic connection contact held therein.
  • the connection contact is usually shaped like a disk, in particular button-like or plate-like.
  • the sleeve is usually slotted with the slit pushed onto the pinch. It is attached to the bruise with putty.
  • putty has some disadvantages.
  • the connection thus achieved is not sufficiently reliable at high temperature loads.
  • the acidic environment of the putty and residues of solvents can corrode the power supply. For this reason, attempts have already been made to fasten the ceramic sleeve without cement (see, for example, EP-A 547 683).
  • the manufacture of such lamps is very complicated and therefore time-consuming and costly.
  • the advantage of the present invention is that the ceramic sleeve material can now be saved completely and thus also on putty can be completely dispensed with.
  • the time-consuming baking out of the base cement is completely eliminated.
  • the molding of the glass base sleeve can preferably be carried out at the same time as the squeezing step.
  • the double-pinched electric lamp consists of a vacuum-sealed, elongated lamp bulb that defines a longitudinal axis. It is equipped with press seals at its two opposite ends, each press seal enclosing a press film that connects the inner and outer power supply lines. Lamp bases are attached to the outer ends of the pinch seals. These consist of a sleeve which is formed from the material of the lamp bulb and which is molded onto the outer end of the pinch seal. This sleeve has an inner and outer diameter, the wall thickness of the sleeve depending on the type being on the order of about one millimeter. A contact element is fastened inside the sleeve and is connected in an electrically conductive manner to the external power supply. The contact element extends essentially transversely to the lamp axis.
  • the basic shape of the contact element is disc-like. Forms derived therefrom, such as contact elements similar to mushrooms, pencils or knives, are also particularly suitable.
  • the element is fastened in the sleeve in that at least part of the edge of the contact element is embedded in the sleeve, that is to say melted or squeezed.
  • the distance of the edge of the disk-like body from its center, ie its radius changes over the circumference. It changes in particular legally or periodically.
  • This property is particularly important when there is practically no metallic material for the contact element, which would be adapted to the thermal expansion coefficient of the piston material (generally quartz glass). A mismatch would soon lead to cracks in the bulb material (quartz glass) during operation, which would shorten the life of the lamp.
  • a suitable material for the contact material is stainless steel (V2A, especially also nickel-plated) or nickel or copper (possibly silver-plated or gold-plated).
  • the minimum radius of the element is smaller than the inner radius of the sleeve.
  • the contact element has a shamrock-like, elliptical, triangular-like or n-corner shape.
  • the corners of the contact element are rounded. In this way, tensions can be minimized, especially when both techniques are used simultaneously.
  • the contact element is anchored very reliably in the glass sleeve.
  • the external power supply that connects the squeeze film to the contact element can in principle be implemented in two different ways.
  • the external power supply is a wire.
  • the contact element advantageously has an eyelet-like extension (neck part) into which the wire can be inserted.
  • a second variant is to angle the wire-shaped power supply and to weld the long side of the angle piece to the contact element. Finally, the contact element can also be butt-welded directly to the wire.
  • the external power supply is a film, in particular an extension of the squeeze film.
  • the usual squeeze film is stable enough to take on the task of external power supply.
  • an extension part of the squeeze film is preferably angled, again the longitudinal side of the angle piece being welded to the contact element.
  • the contact element In the event that part of the external power supply is bent, it is advantageous for the contact element to be bulged toward the power supply.
  • the elbow can be welded well to this concave curvature.
  • the edge of the contact element has a thickness between 0.3 and 0.8 mm. In a particularly preferred embodiment, this dimensioning rule applies to the entire contact element.
  • the production of such bases from glass sleeves can advantageously be integrated into the usual production process for lamps of the type described, for example (with the aid of a four-jaw squeezing machine) in EP-A 451 647 is described.
  • the jaws now each contain an integrated molding device which not only forms the pinch, but also the glass sleeve.
  • the end of the lamp bulb in particular also the area of the later glass sleeve, is brought to the deformation temperature.
  • the surface tension results in a defined self-deformation of the piston end, so that the pipe diameter constricts there.
  • Due to the shaped jaws adapted to the intended base shape the piston is now closed by the pinch jaws.
  • the base geometry is embossed, the contact element being held in the right place by means of negative pressure or using pliers.
  • a defined inner diameter of the glass sleeve is achieved by suitably chosen processing parameters.
  • FIG. 1 shows two views of a halogen incandescent lamp squeezed at 90 °. It consists of a cylindrical bulb 1, in which a luminous element 2 is arranged axially. It is held in the piston 1 by knobs 10.
  • the luminous element 2 consists of luminous sections 3 with a small slope, which are separated by non-luminous sections 4 with a large slope are separated.
  • the ends 5 of the filament also consist of non-illuminating sections with a large slope.
  • the ends 5 are embedded directly in the squeeze 6 in their function as an internal power supply and are connected there with a squeeze film 7.
  • the end 8 of the film 7 facing the filament is bent inside the pinch 6, the filament end 5 being inserted into the bend 9 and thus making an electrical contact with the film 7 purely mechanically.
  • the film is 2.5 ⁇ m thick.
  • a tubular glass sleeve 11 with an outer diameter of 7 mm and an inner diameter of 5 mm is molded onto the outside of the pinch 6 as a base.
  • the sleeve 11 is about 7 mm long. It is therefore narrower than the broad side of the pinch 6, but wider than the narrow side of the pinch 6. Accordingly, there is a transition zone 12 between the pinch 6 and the sleeve 11.
  • a disk-like contact element 13 which is made of sheet steel (V2A) with a thickness of 0.4 mm (see FIG. 2), is embedded in the sleeve 11 transversely to the lamp axis at a depth of 3 mm from the sleeve end. It has a cloverleaf shape, the maximum radius of the disc 13 (Rmax) being 2.7 mm and the minimum radius (Rmin) being 2.0 mm. The latter is reached on the floor by four troughs 16 each. The troughs 16 are punched out of the disk as concave arcs. The troughs 16 serve in particular as a grip aid for a holder by means of pliers.
  • a hollow neck part 14 is attached to the rear of the element 13. Between the film 7 and element 13, a molybdenum wire with a diameter of 0.6 mm is arranged as an external power supply 15, which is welded to the neck part 14.
  • FIG. 3 shows further possible basic shapes for the contact element. Specifically, this is an elliptical shape 17 (FIG. 3a), a triangle-like shape 18 (FIG. 3b) and a square-like shape 19 (FIG. 3c).
  • the basic shape of the latter is a 0.5 mm thick disc which has a concave central bulge 27 with a diameter of 3 mm. The largest diameter of the disc is 5.4 mm, its smallest diameter is 5 mm. The corners of the triangle and quadrangle are rounded.
  • the contact element 20 is bulged in a plate shape, while the wire-shaped outer power supply 21 is angled within the sleeve 11 (22).
  • the long side of the angled part 22 is connected to the rear of the contact element 20 by means of resistance welding.
  • a wire-shaped external power supply 25 can also be butt-welded directly to the contact element 26 in the region of the bulge 27 (FIG. 5).
  • FIG. 6 An exemplary embodiment of a metal halide lamp is shown in FIG. 6.
  • the bulb made of quartz glass in the form of a barrel body 30 includes two electrodes 31 in addition to a metal halide filling.
  • the piston ends are sealed by crushing 32, in which foils 33 are embedded.
  • the external power supply is formed here by an extension part 34 of the squeeze film 33.
  • the extension part 34 is angled in the area of the glass sleeve 11.
  • the angled part 35 is welded with its long side 36 to the rear of the bulbous contact element 26.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
EP96118985A 1995-12-22 1996-11-27 Lampe à deux scellements par pincement Expired - Lifetime EP0780883B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19548523 1995-12-22
DE19548523A DE19548523A1 (de) 1995-12-22 1995-12-22 Zweiseitig gequetschte Lampe

Publications (2)

Publication Number Publication Date
EP0780883A1 true EP0780883A1 (fr) 1997-06-25
EP0780883B1 EP0780883B1 (fr) 1999-05-19

Family

ID=7781273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96118985A Expired - Lifetime EP0780883B1 (fr) 1995-12-22 1996-11-27 Lampe à deux scellements par pincement

Country Status (6)

Country Link
US (1) US5932955A (fr)
EP (1) EP0780883B1 (fr)
JP (1) JP4138901B2 (fr)
CN (1) CN1088254C (fr)
DE (2) DE19548523A1 (fr)
HU (1) HU217146B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0944112A2 (fr) * 1998-03-20 1999-09-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence halogène
EP1492145A2 (fr) * 2003-06-05 2004-12-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe fermée des deux cotés
WO2005029529A2 (fr) * 2003-09-16 2005-03-31 Patent-Treuhand- Gesellschaft Für Elektrische Glühlampen Mbh Lampe electrique scellee des deux cotes et procede de fabrication
US7382092B2 (en) 2004-08-04 2008-06-03 Patent-Treuhand-Gesellshaft für elektrische Glühlampen mbH Electric lamp which is closed at one end

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JP4316699B2 (ja) * 1997-07-25 2009-08-19 ハリソン東芝ライティング株式会社 高圧放電ランプおよび照明装置
US6515421B2 (en) * 1999-09-02 2003-02-04 General Electric Company Control of leachable mercury in fluorescent lamps
EP1143484A1 (fr) * 2000-04-03 2001-10-10 Matsushita Electric Industrial Co., Ltd. Lampe à décharge et unité de lampe
DE102004036977A1 (de) * 2004-07-30 2006-02-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Zweiseitig verschlossene elektrische Lampe
WO2006103622A2 (fr) * 2005-03-31 2006-10-05 Koninklijke Philips Electronics N.V. Lampe electrique
DE102005019829A1 (de) * 2005-04-28 2006-11-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrische Lampe mit Halternoppen für den Leuchtkörper
EP2071609A4 (fr) * 2006-09-26 2012-04-11 Harison Toshiba Lighting Corp Lampe chauffante
JP2008171713A (ja) * 2007-01-12 2008-07-24 Ushio Inc 管型白熱ランプ
US9335038B2 (en) 2011-07-20 2016-05-10 Ip Holdings, Llc Vertically disposed HID lamp fixture
USD770079S1 (en) 2015-04-02 2016-10-25 Ip Holdings, Llc Light fixture
USD698986S1 (en) 2013-03-27 2014-02-04 Ip Holdings, Llc Horticulture grow light housing
USD698987S1 (en) 2013-06-20 2014-02-04 Ip Holdings, Llc Horticulture grow light housing
USD745993S1 (en) 2013-07-09 2015-12-22 Ip Holdings, Llc Horticulture grow light housing
US9750199B2 (en) 2013-07-18 2017-09-05 Ip Holdings, Llc Air cooled horticulture lighting fixture
USD748849S1 (en) 2014-06-11 2016-02-02 Ip Holdings, Llc Sealed optics air cooled grow light
US9016907B2 (en) * 2013-07-18 2015-04-28 Ip Holdings, Llc Air cooled horticulture lighting fixture for a double ended high pressure sodium lamp
USD758646S1 (en) 2014-02-11 2016-06-07 Ip Holdings, Llc Double ended lamp reflector kit
USD731701S1 (en) 2014-02-24 2015-06-09 Ip Holdings, Llc Horticulture grow light housing
USD732235S1 (en) 2014-08-07 2015-06-16 Ip Holdings, Llc Horticulture grow light
USD732236S1 (en) 2014-09-11 2015-06-16 Ip Holdings, Llc Light fixture
USD747029S1 (en) 2014-10-22 2016-01-05 Ip Holdings, Llc Horticulture grow light
USD751245S1 (en) 2014-12-11 2016-03-08 Ip Holdings, Llc Horticulture grow light
USD757346S1 (en) 2015-01-08 2016-05-24 Ip Holdings, Llc Horticulture grow light
USD773107S1 (en) 2015-04-13 2016-11-29 Ip Holdings, Llc Horticulture grow light
USD769513S1 (en) 2015-04-15 2016-10-18 Ip Holdings, Llc Light fixture
USD770670S1 (en) 2015-06-24 2016-11-01 Ip Holdings, Llc Horticulture grow light
USD780985S1 (en) 2016-01-05 2017-03-07 Ip Holdings, Llc Light fixture
USD780986S1 (en) 2016-01-07 2017-03-07 Ip Holdings, Llc Light fixture
USD796728S1 (en) 2016-06-06 2017-09-05 Ip Holdings, Llc Light fixture
USD804079S1 (en) 2016-08-31 2017-11-28 Ip Holdings, Llc Light fixture
USD804078S1 (en) 2016-08-31 2017-11-28 Ip Holdings, Llc Light fixture
USD797350S1 (en) 2016-11-01 2017-09-12 Ip Holdings, Llc Light fixture
USD822882S1 (en) 2017-05-17 2018-07-10 Ip Holdings, Llc Horticulture grow light
USD843049S1 (en) 2017-09-14 2019-03-12 Hgci, Inc. Horticulture grow light
USD842532S1 (en) 2017-10-25 2019-03-05 Hgci, Inc. Light fixture
USD871654S1 (en) 2017-10-30 2019-12-31 Hgci, Inc. Light fixture
USD848663S1 (en) 2017-11-03 2019-05-14 Hgci, Inc. Light fixture
USD848664S1 (en) 2017-11-07 2019-05-14 Hgci, Inc. Light fixture
USD848665S1 (en) 2017-11-08 2019-05-14 Hgci, Inc. Horticulture grow light

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB428414A (en) * 1933-04-20 1935-05-13 British Thomson Houston Co Ltd Improvements in and relating to electric incandescent lamps
FR1305085A (fr) * 1961-11-08 1962-09-28 Perfectionnement aux ampoules et aux tubes électriques
US3646387A (en) * 1970-05-26 1972-02-29 Gen Electric Electric incandescent lamp with tapered sealing collar
EP0451647A2 (fr) 1990-04-12 1991-10-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression et son procédé de fabrication
EP0547683A1 (fr) 1991-12-18 1993-06-23 Koninklijke Philips Electronics N.V. Lampe électrique

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US4870316A (en) * 1987-04-16 1989-09-26 Mitsubishi Denki Kabushiki Kaisha Pulsed alkali metal vapor discharge lamp with ceramics outer envelope
US5006757A (en) * 1989-12-11 1991-04-09 Ushio Denki Kabushiki Kaisha Incandescent lamp
US5153482A (en) * 1990-02-21 1992-10-06 U.S. Philips Corporation High-pressure sodium discharge lamp
DE9206727U1 (de) * 1992-05-18 1992-07-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Hochdruckentladungslampe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB428414A (en) * 1933-04-20 1935-05-13 British Thomson Houston Co Ltd Improvements in and relating to electric incandescent lamps
FR1305085A (fr) * 1961-11-08 1962-09-28 Perfectionnement aux ampoules et aux tubes électriques
US3646387A (en) * 1970-05-26 1972-02-29 Gen Electric Electric incandescent lamp with tapered sealing collar
EP0451647A2 (fr) 1990-04-12 1991-10-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression et son procédé de fabrication
EP0547683A1 (fr) 1991-12-18 1993-06-23 Koninklijke Philips Electronics N.V. Lampe électrique

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0944112A2 (fr) * 1998-03-20 1999-09-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence halogène
EP0944112A3 (fr) * 1998-03-20 1999-09-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à incandescence halogène
US6291934B1 (en) 1998-03-20 2001-09-18 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Halogen incandescent lamp having U-shaped inner supply lead held mechanically in a fold in the foil
EP1355344A3 (fr) * 1998-03-20 2009-04-01 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
EP1492145A2 (fr) * 2003-06-05 2004-12-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe fermée des deux cotés
US7253562B2 (en) 2003-06-05 2007-08-07 Patent-Treuhand-Gesellschaft fur electrische Glühlampen mbH Lamp which is closed on two sides
EP1492145A3 (fr) * 2003-06-05 2007-12-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe fermée des deux cotés
WO2005029529A2 (fr) * 2003-09-16 2005-03-31 Patent-Treuhand- Gesellschaft Für Elektrische Glühlampen Mbh Lampe electrique scellee des deux cotes et procede de fabrication
WO2005029529A3 (fr) * 2003-09-16 2005-09-09 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Lampe electrique scellee des deux cotes et procede de fabrication
US7750545B2 (en) 2003-09-16 2010-07-06 Osram Gesellschaft Mit Beschraenkter Haftung Double-sided sealed electric lamp and method for production thereof
US7382092B2 (en) 2004-08-04 2008-06-03 Patent-Treuhand-Gesellshaft für elektrische Glühlampen mbH Electric lamp which is closed at one end

Also Published As

Publication number Publication date
HUP9603507A3 (en) 1997-10-28
HUP9603507A2 (en) 1997-08-28
US5932955A (en) 1999-08-03
JPH09190804A (ja) 1997-07-22
JP4138901B2 (ja) 2008-08-27
DE19548523A1 (de) 1997-06-26
HU217146B (hu) 1999-11-29
DE59601941D1 (de) 1999-06-24
CN1159652A (zh) 1997-09-17
CN1088254C (zh) 2002-07-24
EP0780883B1 (fr) 1999-05-19
HU9603507D0 (en) 1997-02-28

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