EP2052399B8 - Procédé de réalisation et d'insertion d'un support d'électrodes doté d'un filament spiralé dans une ampoule de lampe à décharge - Google Patents
Procédé de réalisation et d'insertion d'un support d'électrodes doté d'un filament spiralé dans une ampoule de lampe à déchargeInfo
- Publication number
- EP2052399B8 EP2052399B8 EP07822213A EP07822213A EP2052399B8 EP 2052399 B8 EP2052399 B8 EP 2052399B8 EP 07822213 A EP07822213 A EP 07822213A EP 07822213 A EP07822213 A EP 07822213A EP 2052399 B8 EP2052399 B8 EP 2052399B8
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode
- strut
- discharge vessel
- lamp
- electrode holders
- 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.)
- Not-in-force
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003780 insertion Methods 0.000 title description 3
- 230000037431 insertion Effects 0.000 title description 3
- 238000003466 welding Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 description 21
- 239000011324 bead Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 8
- 238000005452 bending Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/067—Main electrodes for low-pressure discharge lamps
- H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
-
- 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
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/18—Assembling together the component parts of electrode systems
-
- 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
- H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
- H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps
Definitions
- the invention relates to a method for manufacturing and introducing an electrode frame with a lamp filament into a discharge vessel of a discharge lamp.
- a low-pressure discharge lamp which has an electrode extending at least partially into a discharge vessel.
- the electrode comprises an electrode frame, which electrode frame comprises two current-carrying electrode holders made of Vakuvit wire. At the front ends of these two separate electrode holders a lamp coil is attached. This subarea is located inside the discharge lamp. Also within this discharge vessel is a glass bead, which connects the two electrode holders and holds them. In the area in which the glass bead is attached, the electrode holders are bent like a bottle neck.
- the electrode frame 1 extends relatively far into the discharge vessel 7, whereby the discharge space is reduced. This results in a distance dl between the lamp filament 6 and the lower end portion 71 of about 20 mm. Furthermore, a distance d2 between the lamp filament 6 and the glass bead 5 is dimensioned at about 10 mm.
- an enlarged view of the electrode frame 1 is shown. It can be seen that in the tapered region 4, in which the glass bead 5 is formed drop-like, the two electrode holders 2 and 3 are arranged very close to each other.
- the known electrode frame 1 is produced on the so-called FSP (Fußspannmaschine) in several successive manufacturing steps.
- FSP Fußspannmaschine
- the individual wires of the electrode holders 2 and 3 are directed, the wires are cut, the frame geometry is bent accordingly and thus the two electrode holders 2 and 3 are bent into their shown shapes, the glass bead 5 is placed, the electrode frame 1 is bent into its final shape , the glass bead 5 melted, the electrode holders 2 and 3 planed, bent at the front end portions of the electrode holders 2 and 3 hooks to then insert the lamp filament 6 there and can jam.
- a Sp Gill the electrode holders 2 and 3 is then bent, the lamp filament 6 bepastet, bent a final final dimension and then then the electrode frame 1 inserted into a frame feed.
- the glass bead is used to stabilize the Elektrodengestells 1 during handling between the individual processing steps to crushing of the end portion 71.
- Disadvantages of this embodiment with a glass bead are on the one hand to see that as a special material glass, for example OG131, with complex production is required. A current insulation to temperatures of about 600 0 C must be guaranteed, which is not possible with conventional soft glasses.
- no safe EOL (End of Life) behavior is guaranteed.
- situations may occur in which, despite a broken lamp filament 6 power supply to plastic parts and then melt them, since the glass bead 5 is conductive.
- pearl spots can occur in the burner positions.
- a method according to the invention for producing an electrode frame and for introducing such an electrode frame with a lamp filament into a discharge vessel of a discharge lamp initially two separate electrode holders in the form of substantially elongated wires are provided. Furthermore, an elongated strut is attached to the two spaced apart electrode holders. At front end portions of the electrode holders, a lamp filament is mounted so that this lamp filament extends between the two electrode holders. The electrode frame produced in this embodiment is then introduced in regions into the discharge vessel, so that at least the lamp filament is arranged inside the discharge vessel. In particular, by attaching an elongated cross member, the stability criterion of the electrode holders and thus also of the entire electrode frame can be ensured.
- the stability is at least as great as when mounting a propfenartigen glass bead.
- the electrode holders in the region of this stabilization elements are spaced further apart than in a configuration with a propfenartigen glass bead.
- the elongate strut can be attached to the electrode holders much more easily and inexpensively, and is itself preferably made of materials which are much cheaper than expensive pearl glass, for example OG131.
- the electrode frame is introduced into the discharge vessel such that the elongated strut is positioned outside the discharge vessel.
- this arrangement can also be used to ensure accessibility to the transverse strut at any time. Even after the gas-tight fusing and in particular after squeezing the end region of the discharge vessel, into which the electrode frame extends into the discharge vessel, a handling of this elongate strut can be carried out.
- the elongate strut is preferably completely separated from the electrode holders after the area-wise introduction of the electrode frame into the discharge vessel. This separation of the elongate strut preferably takes place after crushing of an end region of the discharge vessel for gastight sealing of the discharge vessel.
- the oblong strut thus serves for the stabilization during the production and introduction of the electrode frame into the discharge vessel and can be removed, in particular after squeezing, after the electrode frame has been mechanically stably arranged anyway.
- the elongate strut is separated prior to pumping the discharge vessel. Pumping means evacuating and filling the discharge vessel with a filling material.
- the elongate strut is preferably at least 12 mm, in particular at least 15 mm, in particular at least 20 mm, spaced from the lamp filament attached to the electrode holders. By this spaced arrangement, a substantial shortening of the entire electrode frame can be achieved.
- the elongated strut is welded to the electrode holders.
- a welding process proves to be particularly suitable in accordance with resistance welding.
- the mechanically stable connection of the electric rack can thereby be ensured during production and the primary introduction of the electrode frame into the discharge vessel.
- the elongated strut preferably has a length between about 5 mm and 10 mm. In particular, the length of this cross member is about 7 mm.
- the elongate strut is formed as an electrically conductive element.
- the elongate strut is a wire, in particular Another is a vacuum wire.
- the electrode holders are made of such a wire, in particular a Vakuvit wire, and the elongate strut may be formed of a corresponding material.
- the elongate strut has a diameter of about 0.4 mm. This also corresponds to the preferred diameter of the electrode holders.
- Such a thickness of the elongate strut allows for reliable attachment to the electrode supports and also provides sufficient stability and position retention of the electrode supports during insertion and further securing of the electrode support to the discharge vessel.
- the elongate strut is formed of an electrically non-conductive material.
- a stable plastic or the like may be provided.
- an electrically nonconductive element is formed with a corresponding temperature stability, so that it can also be provided that this elongate strut is arranged inside the discharge vessel when the electrode frame is introduced into the discharge vessel and a pinch of the End region, where the electrode frame is introduced, completed.
- this elongate strut is arranged inside the discharge vessel when the electrode frame is introduced into the discharge vessel and a pinch of the End region, where the electrode frame is introduced, completed.
- it can remain permanently attached during operation of the discharge lamp, since a current bridge does not arise in this regard.
- the elongate strut is formed with such a length that, after attaching the strut to the electrode mounts, the distance between the two electrode mounts in the region of the attached strut substantially the distance of the two Elektrodenhalte- ments at the front end portions where the lamp filament attached is, corresponds.
- a variety of bending and forming a tapered, bottle-like portion of the electrode holders, as required in the formation of a glass bead in the prior art, can be prevented thereby.
- the electrode frame must protrude less far into the discharge vessel than is the case in the prior art according to FIG.
- an extension of the discharge space in the discharge vessel can also be achieved, since in the case of such beaded loose electrode racks, the lamp filament can be lowered to a so-called wiping edge.
- the wire saved thereby can be used for an electrode holder, in particular for the elongate strut. Compared to the prior art, at most the same amount of wire is used, which already gives a cost-saving potential here.
- the degree of use can be increased because no pearl bursting can occur.
- an increase in performance of the contemplatspannmaschine can be achieved, since geometriebiegungen and a Perleneinschmelzen, as required in the art, omitted.
- the discharge lamp is also EOL safe. Maintenance costs for bending tools and a melting torch for introducing the glass bead can also be saved.
- FIG. 1 shows a discharge vessel of a discharge lamp with an electrode frame known from the prior art
- FIG. 2 is an enlarged view of the known electrode frame according to FIG. 1;
- FIG. 3 shows an instantaneous production phase of an electrode frame according to the invention when introduced into a discharge vessel of a discharge lamp;
- FIG. 4 shows an enlarged view of an inventive electrode frame in a further production step.
- FIG. 3 shows a schematic representation of a production state of an electrode frame 1 ', which is introduced into a discharge vessel 7 of a discharge lamp.
- the basic structure of the electrode frame 1 ' is made up of two electrode holders 2' and 3 ', one lamp filament 6' and one elongate strut 8.
- the electrode holders 2 'and 3' are made of a vacuum wire and have substantially the same length.
- an elongate strut 8 is then fastened between the electrode holders 2 'and 3' arranged substantially parallel to one another.
- the elongated strut 8 is also formed in the embodiment of Vakuvit wire and has a diameter of about 0.4 mm, which also corresponds to the diameter of the two electrode holders 2 'and 3'.
- the elongate strut 8 is introduced as a transverse strut between the two electrode holders 2 'and 3' and is attached to both electrode holders 2 'and 3'. attached by resistance welding.
- the elongated strut 8 is arranged offset back to front end areas 21 and 31 of the electrode holders 2 'and 3'.
- the distance d4 between these front end portions 21 and 31 of the E- lektrodenhalterept 2 'and 3' to the elongate strut 8 is about 15 mm.
- the two electrode holders 2 'and 3' extend substantially parallel over their entire length. Both electrode holders 2 'and 3' do not have a tapered region, as is required in the prior art according to FIGS. 1 and 2 in the region 4.
- the electrode holders 2 'and 3' thus have a substantially constant distance d3 over their entire length. This is in the exemplary embodiment about 7 mm and thus corresponds substantially to the length of the elongated strut 8.
- the wires are planarized. Subsequently, hooks are then bent at the front ends 21 and 31, and subsequently the lamp filament 6 is inserted into these bent hooks and clamped there. Then an expansion dimension of the electrode holders 2 'and 3' is bent and the lamp filament 6 is pasted. Then follows a bending of the final dimension of the electrode frame 1 'and an insertion of this in the rack feed. In this state of manufacture, the electrode frame 1 'is in its basic condition completed. Subsequently, this electrode frame 1 'is then introduced into the discharge vessel 7. For this purpose, the front region, to which the lamp filament 6 is fastened, is introduced into the discharge space at an end region 71 of the discharge vessel 7. This follows in the embodiment so far that the elongate strut 8 is still outside the discharge vessel 7.
- the electrode frame 1 ' is introduced into the discharge vessel 7 so far that a distance d5 between the lamp coil 6 and the lower edge region of the end region 71 is formed. This is in the exemplary embodiment about 10 mm and is thus substantially smaller, in particular by half smaller than the distance dl in the conventional embodiment according to FIG. 1.
- the electrode frame 1 'must therefore be introduced far less into the discharge vessel 7, whereby the discharge space can be increased in comparison to the prior art.
- the distance d4 between the lamp filament 6 and the longitudinal borrowed strut 8 is, as already explained, in the exemplary embodiment about 15 mm.
- the electrode frame 1 'and thus also the lamp filament 6 extend at the front ends 21 and 31 of the electrode holders 2' and 3 'by a relatively small value beyond the wiping edge 72 into the discharge vessel 7.
- the end region 71 is then heated and squeezed in the following so that the electrode holders 2 'and 3' are fixed in position in this end region 71. are squeezed and this end 71 is closed gas-tight.
- the elongated strut 8 is then separated from the electrode holders 2 'and 3', in which, for example, cutting is carried out with a corresponding cutting tool.
- the pumping operation takes place in the discharge vessel 7, in which this is evacuated and appropriate filling material is introduced.
- the enlarged representation of the electrode frame 1 'shown in FIG. 4 shows a production state after the actual parts assembly of the electrode frame 1' and before introduction into the discharge vessel 7.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamp (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006052760A DE102006052760A1 (de) | 2006-11-08 | 2006-11-08 | Verfahren zum Fertigen und Einbringen eines Elektrodengestells mit einer Lampenwendel in ein Entladungsgefäß einer Entladungslampe |
PCT/EP2007/061884 WO2008055873A2 (fr) | 2006-11-08 | 2007-11-05 | Procédé de réalisation et d'insertion d'un support d'électrodes doté d'un filament spiralé dans une ampoule de lampe à décharge |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2052399A2 EP2052399A2 (fr) | 2009-04-29 |
EP2052399B1 EP2052399B1 (fr) | 2011-09-07 |
EP2052399B8 true EP2052399B8 (fr) | 2012-02-22 |
Family
ID=39277497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07822213A Not-in-force EP2052399B8 (fr) | 2006-11-08 | 2007-11-05 | Procédé de réalisation et d'insertion d'un support d'électrodes doté d'un filament spiralé dans une ampoule de lampe à décharge |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100035506A1 (fr) |
EP (1) | EP2052399B8 (fr) |
CN (1) | CN101517689A (fr) |
BR (1) | BRPI0720509A2 (fr) |
DE (1) | DE102006052760A1 (fr) |
WO (1) | WO2008055873A2 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006052026A1 (de) | 2006-11-03 | 2008-05-08 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Anlaufkörper für eine Niederdruckentladungslampe |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4178050A (en) * | 1976-01-16 | 1979-12-11 | Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh | Manufacture of halogen cycle incandescent lamps |
US4703221A (en) * | 1986-04-18 | 1987-10-27 | Ochoa Carlos G | Electric lamp and method of making |
JPH08298096A (ja) * | 1995-04-28 | 1996-11-12 | Matsushita Electric Works Ltd | 低圧放電灯用電極及びその製造方法 |
DE102004004655A1 (de) * | 2004-01-29 | 2005-08-18 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Niederdruckentladungslampe |
-
2006
- 2006-11-08 DE DE102006052760A patent/DE102006052760A1/de not_active Withdrawn
-
2007
- 2007-11-05 BR BRPI0720509-0A patent/BRPI0720509A2/pt not_active IP Right Cessation
- 2007-11-05 WO PCT/EP2007/061884 patent/WO2008055873A2/fr active Application Filing
- 2007-11-05 CN CNA2007800355717A patent/CN101517689A/zh active Pending
- 2007-11-05 US US12/311,761 patent/US20100035506A1/en not_active Abandoned
- 2007-11-05 EP EP07822213A patent/EP2052399B8/fr not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
DE102006052760A1 (de) | 2008-05-15 |
BRPI0720509A2 (pt) | 2015-06-16 |
US20100035506A1 (en) | 2010-02-11 |
CN101517689A (zh) | 2009-08-26 |
WO2008055873A3 (fr) | 2008-11-27 |
EP2052399A2 (fr) | 2009-04-29 |
EP2052399B1 (fr) | 2011-09-07 |
WO2008055873A2 (fr) | 2008-05-15 |
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