EP2154706A2 - Feuille pour lampes et lampe électrique dotée d'une telle feuille ainsi que procédé de fabrication correspondant - Google Patents

Feuille pour lampes et lampe électrique dotée d'une telle feuille ainsi que procédé de fabrication correspondant Download PDF

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Publication number
EP2154706A2
EP2154706A2 EP09166012A EP09166012A EP2154706A2 EP 2154706 A2 EP2154706 A2 EP 2154706A2 EP 09166012 A EP09166012 A EP 09166012A EP 09166012 A EP09166012 A EP 09166012A EP 2154706 A2 EP2154706 A2 EP 2154706A2
Authority
EP
European Patent Office
Prior art keywords
film
power supply
field
structures
slots
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Withdrawn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
EP09166012A
Other languages
German (de)
English (en)
Other versions
EP2154706A3 (fr
Inventor
Georg Rosenbauer
Thomas Heil
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 EP2154706A2 publication Critical patent/EP2154706A2/fr
Publication of EP2154706A3 publication Critical patent/EP2154706A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors
    • H01J61/368—Pinched seals or analogous seals
    • 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
    • H01J5/32—Seals for leading-in conductors
    • H01J5/38—Pinched-stem or analogous seals
    • 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
    • H01J5/46—Leading-in conductors
    • 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
    • H01J9/28—Manufacture of leading-in conductors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making

Definitions

  • the invention is based on a film for lamps which use a film seal. This can be a melting or crushing.
  • the lamps may be in particular halogen incandescent lamps or high-pressure discharge lamps.
  • the invention also relates to such lamps and also to a method of producing a power supply system comprising such a foil
  • foils are welded together with the associated power supply leads, which lead into the interior or exterior of a bulb of a lamp, using aids such as welding pastes or welding tapes (usually Pt) or coatings of the foil such as Ru, see DE-A 19961551 ,
  • aids such as welding pastes or welding tapes (usually Pt) or coatings of the foil such as Ru, see DE-A 19961551 .
  • purely mechanical mounting methods clampping the film or folding the film
  • EP-A 944 112 the film is trimmed and turned over.
  • An object of the present invention is to provide an improved concept for a film that is machine-friendly and allows a simple and secure connection of the power supply lines. Another object is to provide a power supply system as well as a lamp, both of which are both simple and inexpensive can be produced. Another task is to specify a manufacturing method for each.
  • the film is provided with an array of slots which are produced within the film.
  • the field consists of at least three slots arranged side by side. Typical and particularly effective is a field of about 10 to 25 slots.
  • the slots are preferably parallel to each other.
  • the field is rectangular.
  • the slots are preferably arranged obliquely to the longitudinal axis of the film.
  • the film itself is rectangular.
  • the dimensions of the slots are chosen so that they are adapted to be attached to the film power supply.
  • a power supply is a thin wire, preferably the power supply is a single or double helical wire. The best results are achieved with a single coiled wire.
  • a possible Angle against the longitudinal axis is 10 to 90 °, preferably a range of 30 to 70 °, particularly suitable is an angular range of 30 to 45 °.
  • the slots are most easily generated by a laser treatment.
  • a high-quality pulsed Nd-YAG micromachining laser is used for this purpose.
  • the parameters for the weld can be specifically optimized by the number, width and spacing of the slits each to a specific power supply.
  • the films used for this purpose are conventional films used in the construction of lamps, preferably a molybdenum film, which is possibly suitably doped, as has likewise been known for a long time.
  • Typical dimensions of the foil are: width is 3 mm and length is 7 mm.
  • a typical thickness is 30 ⁇ m.
  • the field of slots has a typical dimension of 2mm width and 0.8mm length.
  • the thus treated film is preferably used in quartz glass flask.
  • Lamps with such pistons may be incandescent or discharge lamps.
  • the new concept is suitable for a connection mediated by means of welding or soldering between an internal or external power supply and a foil. It is sufficient in the simplest case even that the structure of the field on the film not with slits but purely by a pretreatment of the film, which leads to melting in a line-like manner or a grid-like manner, is achieved. Of course, a combination of pure melting and slitting is also suitable.
  • the advantage of such pretreatment is in any case that the molybdenum of the film melts more easily during welding, because the weld cross-section is smaller. In addition, there is less heat dissipation at the welding point of the power supply over the film.
  • the inner is preferred Power supply a coil or a coil with core wire. It is also advantageous that the contact resistance at the cut edges assumes a well-defined value.
  • Such a panel can also be combined with other measures, such as a film tab, by first creating an array of slits or fuses and then slitting a portion of the film like a window around that area of the panel.
  • the concept is particularly suitable for the connection of the film to the internal power supply, since their diameters are usually relatively small, so that the welding of this power supply is particularly critical. Typical diameters of the wire of the power supply are down to 15 microns, in a primary winding, the outer dimensions are down to about 50 microns. Of course, the concept can also be used alone or in addition to the connection of the film to the external power supply.
  • the foil material itself is the usual one used in the construction of lamps, for example molybdenum or doped or coated molybdenum or even tantalum etc.
  • the thickness and shape of the foil can also be selected as usual. Typical are some tens of ⁇ m and a lancet shape of the film.
  • Such films themselves are typically cut substantially rectangular, with a longitudinal side, which is preferably parallel to the later lamp axis, and a shorter transverse side, which is preferably transverse to the later lamp axis. Deviations from this rule are of course possible and do not affect the basic concept of the invention.
  • At least one field is recessed in the film. This can be achieved by punching or by using high-energy radiation, in particular a laser. Typical cutting times per foil are less than a second.
  • the slot has a typical width of 5 to 250 ⁇ m.
  • the basic shape of the slot is usually rectangular, but it can have any other shapes, such as triangular, wavy or rounded. It is essential that the width at one point has the adaptation to the power supply described above.
  • the web distance can change within a cutting line. Depending on the laser type and manufacturer, it may be that at the beginning and at the end of the line, the web width becomes smaller or completely disappears.
  • cutting speeds of up to 5000 mm / sec can be achieved. In general, therefore, there is usually a combination of pure slots and interrupted by webs slots.
  • a plurality of such fields may be mounted on a foil.
  • a plurality of power supply lines can be held mechanically at the same time, or the holder of a power supply can be improved by means of these second slots by means of a second weld.
  • the cutting out of the slot along the cutting edge takes place for example by mechanical punching or by high-energy means such as plasma or laser radiation.
  • high-energy means such as plasma or laser radiation.
  • This system is well suited for metal halide or halogen incandescent lamps, but also versatile for other purposes.
  • FIG. 1 An embodiment of a halogen incandescent lamp 1 shows FIG. 1 , It has a piston 2 made of quartz glass, which is sealed with a pinch seal 3. In the interior of the piston, a luminous element 4 is attached, which is connected via two inner power supply lines 5, each with a film 6 in the pinch seal 3.
  • the power supply lines are typically made of tungsten or molybdenum, or similar. and have a diameter of 15 to 200 microns, depending on the wattage of the lamp.
  • the flask contains a common halogen-containing filling. The type of filling is not important here. Instead of a luminous body, the piston may also contain two electrodes.
  • the film 6 is each made of molybdenum. In the region of the half facing the interior of the piston, it has a field 10 of furrows 11 which are structured parallel to one another.
  • the inner power supply 5 is guided over the field and there welded to the film 6.
  • This power supply is preferably a single-wound wire (primary winding).
  • a foil 6 with a panel 19 of slots 20 is shown in detail.
  • d is the width of a slot and f is the distance between two slots.
  • Typical about 10 to 25 slots are similarly arranged in a rectangular field of width b and length a.
  • the slits are inclined by 45 ° even against the longitudinal direction of the film. This ensures that as many slots as possible cross the power supply. This usually means that the length of the slots is different. However, it is not excluded that the length of the slots is the same, so that the field itself is oblique to the longitudinal axis.
  • the parameters d and f change within the field. This can be achieved by tilting the laser beam (laterally or longitudinally). Due to the different distances of the film surfaces to the laser optics, the focus diameter of the beam on the Mo film and thus also the kerf width d changes.
  • the distance f within a field can be changed by e.g. To obtain approximately equal volume elements between 2 webs.
  • the lancet-shaped cross-section of the Mo film can be approximately taken into account with the thinning edges.
  • FIG. 3 shows a further embodiment of a high-pressure discharge lamp 30 with a known metal halide filling.
  • the film 31 is not treated so that slots are formed, but only a structured field 32.
  • the laser power is made smaller, so that instead of slits on the surface of the film only furrows 33 arise in which the film is melted or even only oxidized was roughened while doing so.
  • the film 31 is used for a sealing based on a melting, wherein the discharge vessel 29 made of quartz glass with two cylindrical necks 28, which contain the films 31, is provided.
  • the inner power supply lines are shafts 27 which terminate at electrodes 26 here.
  • the film 31 is here provided with two fields, a field 32 for the electrode shaft as an inner power supply and a field 35 for the external power supply 36th
  • the field 35 for the external power supply is here equipped with lattice-like arranged grooves 39.
  • This embodiment is not feasible with slots.
  • a field of parallel Anschmelz furrows is first generated by laser. Thereafter, the angle is changed and a second field of fused furrows is overlaid.
  • the parameters of the two fields can be different, ie in particular d and f can be chosen differently.
  • FIG. 4 shows an embodiment of a film 6, wherein the field 40 is arranged from slots around.
  • FIG. 5 shows a further embodiment of a film 6, in which slots 51 are used, which are interrupted by webs 52.
  • the length of the slot parts 51 is designated by x.
  • the length of the interruptions or webs 52 with y.
  • Such a design improves the stability of the film and can with higher-Watt lamps the Reduce current density in the areas between the slots. Best results are achieved when the ratio x: y is in the range 0.3: 1 to 3: 1. Because of the dynamics of the laser, this statement is not generally true for all slits, but only for a central region of the field, especially for the middle third of the length of a slit at all those slits in the field that have maximum length and hence not at the edge of the field lie.
  • the cutting speeds are 10 mm / sec up to 10000 mm / sec. In this case, a point overlap is no longer secured throughout. the result is slits or holes one behind the other like in FIG. 5 shown.
  • a typical pulse frequency of the laser is 2 to 100 kHz.
  • a typical diameter of a single hole is 5 to 50 ⁇ m.
  • the distance between the individual holes is often in the range of the diameter of the hole up to three times this diameter or the smaller dimension of the longitudinal slot.
  • a typical arrangement of the slit field on the film is a 3 mm wide film, with the distance of the field from the edge of the film being about 0.5 to 1 mm, respectively.
  • the production of the slots or grooves is most easily achieved by means of high-energy radiation such as an Nd: YAG laser or CO2 laser with extremely small focus beam diameter less than 0.5 mm.
  • this laser is operated in the pulse mode and the laser beam is guided by means of a scanner optics or by means of a micromirror.
  • the production of the slits by means of laser processing, etc. can be done both before and after the chemical edge etching of the Mo band. That means the laser processing
  • the advantage is that light oxidations / smuts are etched away and the residual stresses introduced by the laser processing into the Mo foil disappear after the chemical etching and relaxation and cleaning annealing of the finished Mo foil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Laminated Bodies (AREA)
EP09166012A 2008-08-11 2009-07-21 Feuille pour lampes et lampe électrique dotée d'une telle feuille ainsi que procédé de fabrication correspondant Withdrawn EP2154706A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008037319A DE102008037319A1 (de) 2008-08-11 2008-08-11 Folie für Lampen und elektrische Lampe mit einer derartigen Folie sowie zugehöriges Herstellverfahren

Publications (2)

Publication Number Publication Date
EP2154706A2 true EP2154706A2 (fr) 2010-02-17
EP2154706A3 EP2154706A3 (fr) 2010-11-10

Family

ID=41022907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09166012A Withdrawn EP2154706A3 (fr) 2008-08-11 2009-07-21 Feuille pour lampes et lampe électrique dotée d'une telle feuille ainsi que procédé de fabrication correspondant

Country Status (4)

Country Link
US (1) US20100033094A1 (fr)
EP (1) EP2154706A3 (fr)
CN (1) CN101651081A (fr)
DE (1) DE102008037319A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016206484A (ja) * 2015-04-24 2016-12-08 株式会社リコー ヒータ、定着装置及び画像形成装置
CN108723788B (zh) * 2018-05-08 2024-01-02 佛山电器照明股份有限公司 一种一体化支架灯的自动化生产线

Citations (2)

* 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
DE19961551A1 (de) 1999-12-20 2001-06-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einschmelzfolie und zugehörige Lampe mit dieser Folie

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US356795A (en) * 1884-10-25 1887-02-01 Terminal for incandescent lamps
NL183794B (nl) * 1979-02-26 Philips Nv Hogedrukkwikontladingslamp.
US5158709A (en) * 1990-02-01 1992-10-27 Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh Electric lamp containing molybdenum material doped wtih aluminum and potassium, molybdenum material for such a lamp, and method of its manufacture
DE9013735U1 (fr) * 1990-10-02 1992-02-06 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen, De
JP3648184B2 (ja) * 2001-09-07 2005-05-18 株式会社小糸製作所 放電ランプアークチューブおよび同アークチューブの製造方法
EP1981061A4 (fr) * 2006-01-26 2010-06-16 Harison Toshiba Lighting Corp Lampe aux halogenures metalliques

Patent Citations (2)

* 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
DE19961551A1 (de) 1999-12-20 2001-06-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einschmelzfolie und zugehörige Lampe mit dieser Folie

Also Published As

Publication number Publication date
DE102008037319A1 (de) 2010-02-18
US20100033094A1 (en) 2010-02-11
CN101651081A (zh) 2010-02-17
EP2154706A3 (fr) 2010-11-10

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