EP1843380A1 - Méthode et dispositif pour doser une quantité de mercure exactement contrôlable dans une lampe à décharge - Google Patents

Méthode et dispositif pour doser une quantité de mercure exactement contrôlable dans une lampe à décharge Download PDF

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Publication number
EP1843380A1
EP1843380A1 EP06007445A EP06007445A EP1843380A1 EP 1843380 A1 EP1843380 A1 EP 1843380A1 EP 06007445 A EP06007445 A EP 06007445A EP 06007445 A EP06007445 A EP 06007445A EP 1843380 A1 EP1843380 A1 EP 1843380A1
Authority
EP
European Patent Office
Prior art keywords
metering
mercury
feed channel
discharge vessel
bore
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
EP06007445A
Other languages
German (de)
English (en)
Other versions
EP1843380B1 (fr
Inventor
Petar Stanic
Jürgen REMDE
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.)
Flowil International Lighting Holding BV
Original Assignee
Flowil International Lighting Holding BV
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
Priority to EP08100654A priority Critical patent/EP1912242A3/fr
Priority to DE200620020463 priority patent/DE202006020463U1/de
Priority to AT06007445T priority patent/ATE424620T1/de
Priority to EP06007445A priority patent/EP1843380B1/fr
Priority to DE502006003007T priority patent/DE502006003007D1/de
Application filed by Flowil International Lighting Holding BV filed Critical Flowil International Lighting Holding BV
Priority to US11/783,194 priority patent/US7695336B2/en
Publication of EP1843380A1 publication Critical patent/EP1843380A1/fr
Application granted granted Critical
Publication of EP1843380B1 publication Critical patent/EP1843380B1/fr
Priority to US12/656,973 priority patent/US20100159791A1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/395—Filling vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury

Definitions

  • the invention relates to a method for introducing a precisely metered amount of mercury in the discharge vessel of a lamp, in particular in a straight fluorescent lamp, wherein the discharge vessel is connected to a lamp holder and acted upon by the lamp holder with a gas stream and further via a mercury introduction channel with a predetermined amount Mercury is filled. Furthermore, the invention relates to a corresponding device.
  • Fluorescent lamps are produced on fully automatic production machines, where lamp blanks in a horizontal position undergo various processes. These include: baking out the phosphors slurried into the discharge vessel, melting an electrode at the end of the discharge vessel, evacuating the discharge vessel, filling the discharge vessel with an inert filling gas, introducing a predetermined amount of mercury and then hermetically sealing the discharge vessel at both ends of the discharge tube ,
  • the heating of the mercury strip in the finished lamp has the consequence that possibly other unwanted components, in particular H 2 are released from the metal strip, which negatively influence the ignition and burning properties of the lamp.
  • a getter material is usually additionally attached to the metal strip, which also has to be heated inductively to activate it.
  • the heating necessary to activate the getter or to release the mercury is achieved by inductive energy input, wherein a very strong alternating electromagnetic field must be applied for heating the metal strip to 900 ° to 1000 ° over a period of 10 to 30 seconds.
  • the energy consumption at a lamp throughput of 7000 / h is considerable and the energy efficiency of this method is extremely low.
  • the production of the metal strip with pressed-on mercury and getter compounds (usually in welded ring form) and the handling in the lamp manufacturing make the getter tape technology very expensive and expensive.
  • This object is achieved according to a central idea of the present invention in that in a preparation step at or after the metering of the amount of mercury to be introduced, the mercury is placed in a metering volume in the form of a single contiguous drop, then in a filling step, the entire amount of mercury to be incorporated Maintaining the previously formed drop is transported into the discharge vessel and wherein a switching mechanism is provided, which bypasses the gas flow through the bypass passage during the preparation step and the bypass passage blocks during the filling step, such that the gas flow during the blocking of the bypass channel on the dosing volume is guided and entrains the drops in the discharge vessel.
  • the dosage of the droplet could already be made spatially separated or well in advance, it is preferred if the metering takes place through or within the metering volume. However, it is ensured that exactly the predosed amount of mercury is ready for filling into the discharge vessel.
  • the drop of mercury is guided in such a way that steps or edges in the direction of introduction are avoided during transitions.
  • Corresponding transitions can be formed either completely flat or the droplets can be guided so that the diameter of guide means at the transitions widened, so that the drop of mercury in the direction of motion encounters no obstacle.
  • an acceleration channel is provided between the dosing unit and the feed channel, which is aligned so that the drop is transferred by utilizing the gravitational force with an additional gravitational pulse into the feed channel.
  • the divided into a plurality of individual spheres mercury also accelerated by gravitational force hits the feed channel.
  • an additional gravitational pulse is used for the transport of the mercury within the feed channel in the direction of the discharge vessel.
  • the spoon has, on its side facing away from the scoop arm, a roof tapering radially outwards, in particular to a ridge or a point, which allows mercury to run off the radial outside of the scoop favored. This ensures that mercury, which is located on the radially outer side of the spoon, not on the tipper unit along toward the inflow opening and / or yet to be explained gas passage bore, which is aligned in the release position with the metering bore, can flow.
  • the feed channel has an upstream first portion and a downstream second portion coaxially aligned with each other and at the same time rotatably supported against each other about their common axis.
  • the first portion of the feed channel relative to the associated lamp holder is rotatably mounted, this is preferably achieved in that the first portion of the feed channel is rotatably mounted in a relative to the associated lamp holder fixed dosing sleeve.
  • the metering sleeve may comprise the metering bore according to the invention and further a bearing for the tilting spoon unit and for a central inner part, in which also the bypass channel and the inflow opening (s) are formed form.
  • FIG. 1 is a longitudinal section through an embodiment of a lamp holder 11 according to the invention is shown in a longitudinal section.
  • the lamp holder 11 initially comprises a housing 61 and a holder 43 attached to the housing, in which a discharge vessel 13 of a fluorescent lamp to be produced is held via a pumping tube 44 fused to the discharge vessel.
  • the holder 43 includes sealing means 45, which may be concretely formed as an annular sealing rubber.
  • the tipper unit 28 In positions A and B, the bucket 31 is completely submerged in the mercury lake 47 and exits the mercury lake 47 at position C filled with mercury so that both buckets 31 and channel 54 are filled with mercury.
  • the tipper unit 28 In the positions D and E, the tipper unit 28 is still in the dosing position, in which case the mercury present in the channel 54 can enter the dosing bore 21.
  • the tipper unit 28 In the positions F and G, the tipper unit 28 is transferred by a rapid tilting into the release position, so that the formed in the metering bore 21 ball 16 of mercury via the acceleration channel 25 in the central feed channel 19 and from there into the discharge vessel 13 can occur.
  • Fig. 15 the arrangement in the release position (filling step) is shown.
  • the covers 65, 66 close the inflow openings 26 of the bypass channel such that the gas flow is now guided via the metering volume or the metering bore 21 and thus entrains the drop 16 into the discharge vessel 13.
EP06007445A 2006-04-07 2006-04-07 Méthode et dispositif pour doser une quantité de mercure exactement contrôlable dans une lampe à décharge Not-in-force EP1843380B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE200620020463 DE202006020463U1 (de) 2006-04-07 2006-04-07 Einrichtung zum Einbringen einer genau dosierbaren Menge an Quecksilber
AT06007445T ATE424620T1 (de) 2006-04-07 2006-04-07 Verfahren und vorrichtung zum einbringen einer genau dosierbaren menge quecksilber in eine entladungslampe
EP06007445A EP1843380B1 (fr) 2006-04-07 2006-04-07 Méthode et dispositif pour doser une quantité de mercure exactement contrôlable dans une lampe à décharge
DE502006003007T DE502006003007D1 (de) 2006-04-07 2006-04-07 Verfahren und Vorrichtung zum Einbringen einer genau dosierbaren Menge Quecksilber in eine Entladungslampe
EP08100654A EP1912242A3 (fr) 2006-04-07 2006-04-07 Procédé et dispositif destinés à l'introduction d'une quantité précise mesurable de mercure dans une lampe à décharge
US11/783,194 US7695336B2 (en) 2006-04-07 2007-04-06 Device for introducing an accurately dosable amount of mercury.
US12/656,973 US20100159791A1 (en) 2006-04-07 2010-02-22 Method for introducing an accurately dosable amount of mercury

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06007445A EP1843380B1 (fr) 2006-04-07 2006-04-07 Méthode et dispositif pour doser une quantité de mercure exactement contrôlable dans une lampe à décharge

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08100654A Division EP1912242A3 (fr) 2006-04-07 2006-04-07 Procédé et dispositif destinés à l'introduction d'une quantité précise mesurable de mercure dans une lampe à décharge

Publications (2)

Publication Number Publication Date
EP1843380A1 true EP1843380A1 (fr) 2007-10-10
EP1843380B1 EP1843380B1 (fr) 2009-03-04

Family

ID=36674966

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08100654A Withdrawn EP1912242A3 (fr) 2006-04-07 2006-04-07 Procédé et dispositif destinés à l'introduction d'une quantité précise mesurable de mercure dans une lampe à décharge
EP06007445A Not-in-force EP1843380B1 (fr) 2006-04-07 2006-04-07 Méthode et dispositif pour doser une quantité de mercure exactement contrôlable dans une lampe à décharge

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08100654A Withdrawn EP1912242A3 (fr) 2006-04-07 2006-04-07 Procédé et dispositif destinés à l'introduction d'une quantité précise mesurable de mercure dans une lampe à décharge

Country Status (4)

Country Link
US (2) US7695336B2 (fr)
EP (2) EP1912242A3 (fr)
AT (1) ATE424620T1 (fr)
DE (1) DE502006003007D1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2391573A (en) * 1944-03-07 1945-12-25 Herzog Carl Method of and apparatus for making cold cathode fluorescent lamps or the like
US2433177A (en) * 1944-02-10 1947-12-23 Westinghouse Electric Corp Method and apparatus for introducing mercury into a discharge device by means of a capillary tube and a by-pass connection
US2699279A (en) 1953-07-14 1955-01-11 Sylvania Electric Prod Mercury dispenser
US2726799A (en) 1953-03-23 1955-12-13 Sylvania Electric Prod Apparatus for exhausting electric discharge devices
US2842290A (en) 1955-12-19 1958-07-08 Sylvania Electric Prod Mercury dispenser
JPS5543729A (en) 1978-09-22 1980-03-27 Hitachi Ltd Mercury head
JPS5593635A (en) * 1978-12-30 1980-07-16 Matsushita Electric Works Ltd Method of enclosing mercury in discharge lamp
WO1997019461A1 (fr) 1995-11-23 1997-05-29 Saes Getters S.P.A. Procede de production d'un dispositif de diffusion du mercure, de sorption de gaz reactifs et de blindage d'electrode dans des lampes fluorescentes, et dispositif ainsi produit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433177A (en) * 1944-02-10 1947-12-23 Westinghouse Electric Corp Method and apparatus for introducing mercury into a discharge device by means of a capillary tube and a by-pass connection
US2391573A (en) * 1944-03-07 1945-12-25 Herzog Carl Method of and apparatus for making cold cathode fluorescent lamps or the like
US2726799A (en) 1953-03-23 1955-12-13 Sylvania Electric Prod Apparatus for exhausting electric discharge devices
US2699279A (en) 1953-07-14 1955-01-11 Sylvania Electric Prod Mercury dispenser
US2842290A (en) 1955-12-19 1958-07-08 Sylvania Electric Prod Mercury dispenser
JPS5543729A (en) 1978-09-22 1980-03-27 Hitachi Ltd Mercury head
JPS5593635A (en) * 1978-12-30 1980-07-16 Matsushita Electric Works Ltd Method of enclosing mercury in discharge lamp
WO1997019461A1 (fr) 1995-11-23 1997-05-29 Saes Getters S.P.A. Procede de production d'un dispositif de diffusion du mercure, de sorption de gaz reactifs et de blindage d'electrode dans des lampes fluorescentes, et dispositif ainsi produit

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 004, no. 075 (E - 013) 31 May 1980 (1980-05-31) *
PATENT ABSTRACTS OF JAPAN vol. 004, no. 141 (E - 028) 4 October 1980 (1980-10-04) *

Also Published As

Publication number Publication date
ATE424620T1 (de) 2009-03-15
EP1843380B1 (fr) 2009-03-04
EP1912242A3 (fr) 2008-08-27
US20100159791A1 (en) 2010-06-24
US7695336B2 (en) 2010-04-13
DE502006003007D1 (de) 2009-04-16
EP1912242A2 (fr) 2008-04-16
US20070281572A1 (en) 2007-12-06

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