EP1586670A2 - Amalgame de mercure pour des températures élevées dans les lampes à décharge - Google Patents

Amalgame de mercure pour des températures élevées dans les lampes à décharge Download PDF

Info

Publication number
EP1586670A2
EP1586670A2 EP05007433A EP05007433A EP1586670A2 EP 1586670 A2 EP1586670 A2 EP 1586670A2 EP 05007433 A EP05007433 A EP 05007433A EP 05007433 A EP05007433 A EP 05007433A EP 1586670 A2 EP1586670 A2 EP 1586670A2
Authority
EP
European Patent Office
Prior art keywords
amalgam
mercury
lamp
discharge tube
preferred
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Withdrawn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
EP05007433A
Other languages
German (de)
English (en)
Other versions
EP1586670A3 (fr
Inventor
Martin Beck
Sylvia Frenzel
Roland Hoffmann
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 EP1586670A2 publication Critical patent/EP1586670A2/fr
Publication of EP1586670A3 publication Critical patent/EP1586670A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00

Definitions

  • the present invention relates to mercury amalgams in discharge lamps and discharge lamps with such amalgams.
  • Discharge lamps with mercury content in the discharge medium have been around for a long time Time known and subject of intensive development work. It is special known, mercury in the form of an amalgam additive in the lamp contribute. Mercury is suitable because of its in the candidate Temperatures of relatively high vapor pressure and because of the efficiency the UV generation in discharge media with mercury content particularly good for these applications and is therefore widely used. If mercury is introduced in the form of amalgams, so are a number of technical Criteria to be observed and fulfilled, in particular stability and mechanical handling or consistency of the amalgam and the Vapor pressures in the temperature range of interest.
  • the present invention is based on the technical problem of mercury amalgam for increased compared to the prior art temperatures during normal operation of a discharge lamp (so-called Work amalgam) and a corresponding discharge lamp itself specify.
  • the inventors have found that there are certain applications in which a mercury amalgam in normal operation of the lamp significantly higher Temperatures assumes, as is conventionally the case.
  • This here particularly interesting temperature range is between 100 ° C and 170 ° C.
  • the well-known mercury amalgams are for this temperature range not suitable.
  • the inventors have found that mercury amalgam with a so-called Masteralloy, so with mercury to the Amalgam to be processed metal mixture or alloy, according to the above general formula and the following conditions are well suited for the temperature range mentioned.
  • the invention assumes that a relatively large In content in the master alloy (the term alloy for alloy here in a general Sense as a generic term of metal mixtures of various kinds, in particular but for actual alloys, it is to be understood).
  • the In content is within the specified limits of the stoichiometric parameter a, ie between 70% and 98%. Preferred upper limits are further 97.5% and 97%. Preferred lower limits are 75%, 80%, 85%, 90%, 92%.
  • a the stoichiometric parameter a
  • Preferred upper limits are further 97.5% and 97%.
  • Preferred lower limits are 75%, 80%, 85%, 90%, 92%.
  • the stoichiometry parameter a is still here Additions of in particular Bi, Sb and Ga of up to 15%, in the case of Ga of up to 5%.
  • the actual lowest limit for the actual In share is thus 55%.
  • the Bi, Sb or Ga additives do not significantly interfere with the invention but also no important own function.
  • the parts of Ag, Cu and / or Sn combined with X have the Function of broadening the melting range. This is done by introduction of multi-phase states in the Master Alloy. Especially preferred is here Ag, possibly also combinations with Cu and / or Sn.
  • the component combined with Y has the function, the upper limit of the melting range to higher temperatures. Especially so can, if desired, the upper limit of a typical usable Vapor pressure range up to about 4 Pa order of magnitude Be raised 145 ° C to 160 ° C or 170 ° C. Pb is opposite Zn preferred because Zn can lead to blackening.
  • the corresponding stoichiometry parameter According to the invention, c is less than 25%.
  • Preferred upper Borders are 20%, 18%, 16%, 14%, 12%, 10%. Because with very good Masteralloys can be waived completely on Y, if not a shift the upper limit of the melting range is required in particular also the value 0% is preferred according to the invention.
  • High values of more than 20% are at relatively high lamp powers of over 100 W and / or lamp geometries of interest in which a particularly high heat input results.
  • An example of such Geometry forms the helical lamp of the embodiment.
  • Ni and Te in metallic solution or intermetallic compound create or improve pasty states of the amalgam.
  • the corresponding Viscosity increase can be used to handle the amalgam and / or to prevent dripping or running out of the intended Place in the lamp to be relevant.
  • Ni or Te have no essential Significance for the vapor pressure of the Hg or the formation of amalgam.
  • the Hg content itself which is not expected to be Masteralloy, is preferred between 3% and 20%.
  • the lower value of 3% forms in usual No significant reserve, which is why values above 7% and even better over 10% are preferred. It is further preferred that the Hg content is at most 15%.
  • Hg amalgams can be generated which are in the desired Temperature range or a section of the same favorable
  • T8 lamps with a Diameter of about 26 mm vapor pressures in the order of 1 Pa favorable while for T5 lamps with 16 mm diameters rather 1.6 Pa preferred are.
  • the lamp diameter in tubular lamps inversely proportional to the preferred Hg vapor pressure is.
  • the first embodiment uses a proportion of 10 parts by weight Hg with a master alloy of 97% by weight In and 3% by weight Sn, so that the masteralloy writes itself as In 97 Sn 3 .
  • Sn was selected as element X, although Ag is comparatively preferred.
  • a relatively low value of 3% by weight of Sn is used here, although values of more than 3.5% by weight are even more favorable.
  • Another example contains the Master Alloy In 96 Cu 4 .
  • the stoichiometry parameter for the element X is already in the most preferred range.
  • the selection Cu was made here for the element X.
  • Another example, which has been used in the helical lamp described below, has a smaller Pb content of 10% by weight, ie a master alloy In 90 Pb 10 .
  • a ratio of 3 wt .-% Hg to 97 wt .-% Masteralloy is used.
  • a second amalgam used with the below-described helical lamp employs the master alloy In 96 Ag 4 (at 10 wt% Hg), thus omitting the element Y and selecting for X the most preferable element Ag.
  • master alloys In 84 Ag 6 Pb 10 and In 84 Ag 7 Pb 9 are master alloys In 84 Ag 6 Pb 10 and In 84 Ag 7 Pb 9 .
  • FIG. 1 a shows an elevational view of a compact fluorescent lamp, based which illustrates both the prior art and the invention should be.
  • the lamp has an enveloping bulb 1, which is a helical wound discharge tube 2 encloses.
  • the discharge tube 2 is on an electronic ballast shown only with its housing 3 connected to the housing and the outer bulb 1 is attached.
  • the housing of the Ballast 3 On the opposite side of the envelope 1 ends the housing of the Ballast 3 in a standardized lamp base 4. So far described the lamp of Figure 1a is conventional. This also applies to the previously referred to as double helix shape of the discharge tube 2, the with two ends of the ballast in two discharge tube parts a double helix with alternating order of helices of the two Discharge tube parts is wound.
  • the two discharge tube parts go in an upper area at a designated 5 point into each other.
  • Figure 1a illustrates that such compact fluorescent lamps despite compact External dimensions and a conventional incandescent pretty similar shape provide an overall relatively large discharge length.
  • Reference numeral 6 illustrates a conventional pumping nozzle approach one of the two discharge tube ends, wherein the numbered circle with 7 illustrate should, that here a steam pressure regulating Hg source, about one Amalgam ball, can be provided. Further, the skilled person readily familiar details such as the electrodes, plate melts or Bruises are not shown here. FIG. 1 a illustrates, however, that the Pumprohr approach 6 conventionally a much smaller Diameter than the discharge tube 2 has. In fact, he has to also leave room for the electrodes, which is not shown here.
  • the Pumprohr approach 6 projects on the one hand into the discharge tube end and on the other hand from this into the ballast into, so that he both on the part of the discharge tube and on the part of the ballast a certain additional length (in the figure 1 a vertically) forces.
  • the electrodes must be in via the into the discharge tube projecting part of the Pumprohr approach 6 away. In the prior art they are often stabilized by an additional glass bead.
  • the dashed line and 8 numbered line illustrates an inventive Pipe, which is in the region of the connection 5 of the two discharge tube parts is attached to the discharge tube 2 and from this with respect to the helix top and axial position starting axially and straight down. It essentially takes in this case the axial length of the helical shape.
  • Positions 9 and 10 each marked with a circle, illustrate two exemplary possibilities for the arrangement of a steam pressure regulating Hg source in the pipe section 8 according to the invention.
  • the one position 9 is located slightly below the connection 5 of the discharge tube, so already in the interior of the helix, but in its upper part.
  • the another position 10 is located approximately in the middle of the helix in the axial direction (with the helix from the lower bend of the discharge tube parts on until to the connection position 5 ranges).
  • the temperature of a Hg source is in the helix largely by the emanating from the discharge tube 2 Radiation determines, as it were, from the helical discharge tube 2 is included. It is approximately about a bright cylinder jacket.
  • Position 9 should be in relation to the axial length of the helix at well 20% and Position 10 is well over 50%. Both positions show the advantage of a fast adjustment to the final temperature after switching on cold lamp. Both positions are over the prior art significantly less sensitive to fluctuations in ambient temperature and changes in the installation position. Position 10 is even less depending on the orientation of the lamp during operation, ie the question whether the discharge tube 2 with respect to the ballast 3 in operation above, is arranged laterally or below and of the resulting different Convection conditions.
  • Figure 1a further recognizes that the Pumprohrfunktion also from the pipe section 8 according to the invention can be adopted, namely over its lower end in FIG. 1a. It's not just a big one Pump cross-section available because it does not fit into the discharge tube 2 is and does not take into account electrodes and other parts must become. It is also readily available.
  • the pipe section 8 according to the invention if desired, also in combination used with conventional exhaust pipes 6 for rinsing operations and the like .. and beyond (independent of conventional pump tubes 6) serve as a holder, such as when at the lower ends of the discharge tube 2 plate fusions or bruises are attached.
  • Figure 1b shows a variant of Figure 1a, wherein for corresponding parts of Lamp the same reference numerals have been used, but not all details are drawn. It is here in contrast to Figure 1a to a bulb without bulb, in which moreover the discharge tube ends in the Double helix form into the socket 4 run into it. For comparison, on the in The following still described Figure 2b referenced. It's easy to see that the lamp of Figure 1b is particularly compact.
  • Figure 2a shows a figure 1a corresponding discharge tube 2 with a to Figure 1 a similar, again axially through the interior of the helical shape extending Pipe section 8.
  • Figure 2a illustrates in more schematic Way electrodes 11 at the discharge tube ends.
  • the outer bulb 1, the Ballast 3 and the base 4, however, are not shown.
  • the pipe section 8 does not extend over the entire length of the helix here but only about 3 ⁇ 4 of it. It contains a Glaseinschmelzung 12, the serves to prevent a retaining body in the form of an iron pill 13 from to fall into the discharge tube 2.
  • the iron pill 13 in turn prevents as a result of surface tension effects and because they have a large Part of the cross section of the pipe section 8 blocks that an amalgam ball 14 falls into the discharge tube 2.
  • the amalgam ball 14 as source of Hg is enclosed in this example approximately between 60 and 70% of the axial length of the helix (from measured from the top).
  • the use of the iron pill 13 as a retaining body allows in particular to make the meltdown 12 so that they before the insertion of the iron pill 13 and the amalgam ball 14 a good Pump cross section through the pipe section 8 provides, if this used as a pump tube.
  • the iron pill 13 and the amalgam ball 14 namely, only after completion of all the steps of rinsing, Pumping, Forming etc. introduced.
  • the pipe section 8 is closed at its lower end by melting, as indicated by the shape of the end designated 15 should be. Before closing, the iron pill 13 and amalgam ball 14 and then in the space between the shutter 15 and the meltdown 12 caught. To the positioning of the amalgam ball
  • the statements on position 10 in FIG. 1a apply.
  • the pipe section 8 has in Area of the amalgam ball 14 an IR-absorbing outer coating (not shown).
  • FIG. 2b shows a variant of FIG. 1b corresponding to the lamp from FIG 2a, again with the same reference numerals have been used.
  • FIG. 3 is an elevational view of one end of a straight tubular tube Fluorescent lamp 16 without socket.
  • the free end of the tubular vessel 17 of the fluorescent lamp 16 is closed by a plate melting 18, are squeezed into the power supply lines 19.
  • the power supply lines carry at its inner end a coil 20.
  • a Soldered wire 21 which at its free end a roof-shaped angled Metal sheet 22 carries. The wire is bent so that the metal sheet 22 is arranged in the discharge direction in front of the helix 20.
  • Hg Hg concentration of the compound composed of masteralloy and mercury content Mercury amalgam in this type of straight tubular Fluorescent lamp at the beginning of the burning time is 12%.
  • Hg consumption the Hg concentration decreases during the lifetime up to 3% off.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)
EP05007433A 2004-04-14 2005-04-05 Amalgame de mercure pour des températures élevées dans les lampes à décharge Withdrawn EP1586670A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004018105 2004-04-14
DE102004018105A DE102004018105A1 (de) 2004-04-14 2004-04-14 Quecksilberamalgame für erhöhte Temperaturen in Entladungslampen

Publications (2)

Publication Number Publication Date
EP1586670A2 true EP1586670A2 (fr) 2005-10-19
EP1586670A3 EP1586670A3 (fr) 2008-01-16

Family

ID=34934777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05007433A Withdrawn EP1586670A3 (fr) 2004-04-14 2005-04-05 Amalgame de mercure pour des températures élevées dans les lampes à décharge

Country Status (5)

Country Link
US (1) US7408295B2 (fr)
EP (1) EP1586670A3 (fr)
JP (1) JP2005302731A (fr)
CA (1) CA2504579A1 (fr)
DE (1) DE102004018105A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005035191A1 (de) * 2005-07-27 2007-02-01 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Niederdruckgasentladungslampe mit neuer Gasfüllung
WO2007038419A2 (fr) * 2005-09-26 2007-04-05 Advanced Lighting Technologies, Inc. Amalgame bismuth-indium, lampes fluorescentes et leurs procedes de fabrications
CN100487853C (zh) * 2006-01-13 2009-05-13 高邮高和光电器材有限公司 无铅汞齐
US20070278959A1 (en) * 2006-05-31 2007-12-06 Toshiba Lighting & Technology Corporation Self ballasted compact fluorescent lamp and lighting apparatus
IT1399507B1 (it) 2010-04-21 2013-04-19 Getters Spa Lampada a scarica migliorata
US20110298356A1 (en) * 2010-06-08 2011-12-08 General Electric Company Positioning of auxiliary amalgam
US8378564B2 (en) * 2010-06-09 2013-02-19 General Electric Company Positioning of auxiliary amalgam
ITMI20112111A1 (it) * 2011-11-21 2013-05-22 Getters Spa Lampada contenente un'amalgama di partenza migliorata
CN103730328A (zh) * 2013-12-31 2014-04-16 高邮高和光电器材有限公司 一种制灯用的固汞
CN110690086B (zh) * 2019-08-22 2021-10-08 安徽一路明光电科技有限公司 一种荧光灯芯柱固汞工艺

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL168367C (nl) * 1975-06-20 1982-03-16 Philips Nv Lagedrukkwikdampontladingslamp en werkwijze voor de vervaardiging hiervan.
JPH067473B2 (ja) * 1985-03-30 1994-01-26 東芝ライテック株式会社 低圧水銀蒸気放電灯
JPS6366840A (ja) * 1986-09-09 1988-03-25 Toshiba Corp 低圧水銀蒸気放電灯
JPS6366842A (ja) * 1986-09-09 1988-03-25 Toshiba Corp 低圧水銀蒸気放電灯
JP4205161B2 (ja) * 1994-12-20 2009-01-07 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 低圧水銀蒸気放電ランプ
BE1009761A3 (nl) * 1995-10-30 1997-08-05 Philips Electronics Nv Werkwijze voor het vervaardigen van een lagedrukkwikontladingslamp en lagedrukkwikontladingslamp die met een dergelijke werkwijze is te vervaardigen.
JP3956004B2 (ja) * 1998-02-26 2007-08-08 東芝ライテック株式会社 電球形蛍光ランプおよび照明器具
JPH11354074A (ja) * 1998-06-04 1999-12-24 Toshiba Lighting & Technology Corp 蛍光ランプおよび蛍光ランプ装置
TW494439B (en) * 2000-03-21 2002-07-11 Koninkl Philips Electronics Nv Low-pressure mercury-vapor discharge lamp and amalgam
JP2002042729A (ja) * 2000-07-27 2002-02-08 Matsushita Electric Ind Co Ltd 蛍光ランプ及びそれを用いた電球形蛍光ランプ
JP2003059307A (ja) * 2001-08-22 2003-02-28 Toshiba Lighting & Technology Corp 電球形蛍光ランプおよび照明器具
US6905385B2 (en) * 2002-12-03 2005-06-14 Osram Sylvania, Inc. Method for introducing mercury into a fluorescent lamp during manufacture and a mercury carrier body facilitating such method

Also Published As

Publication number Publication date
JP2005302731A (ja) 2005-10-27
EP1586670A3 (fr) 2008-01-16
CA2504579A1 (fr) 2005-10-14
US20050231095A1 (en) 2005-10-20
DE102004018105A1 (de) 2005-11-10
US7408295B2 (en) 2008-08-05

Similar Documents

Publication Publication Date Title
DE2625954C3 (de) Niederdruckquecksilberdampfentladungslampe und Verfahren zu ihrer Herstellung
DE10291427B4 (de) Halogen-Metalldampflampe für einen Kraftfahrzeugscheinwerfer
EP0652586B1 (fr) Lampe à décharge à halogénure de métal avec récipient de décharge en céramique et son procédé de fabrication
EP1076353B1 (fr) Lampe aux halogènures métalliques sans mercure
EP1586670A2 (fr) Amalgame de mercure pour des températures élevées dans les lampes à décharge
DE69501615T3 (de) Quecksilberlampe vom Kurzbogentyp
EP1738387B1 (fr) Lampe a decharge gazeuse comprenant un tube a decharge helicoidal et une piece tubulaire interieure
EP0602529A2 (fr) Lampe de décharge à haute pression ayant un récipient céramique de décharge
DE60128629T2 (de) Niederdruckquecksilberdampfentladungslampe und amalgam
EP0269957B1 (fr) Lampe à décharge à haute pression munie d'un pincement unique
DE1804545A1 (de) Quecksilber-Niederdrucklampe mit einer Anordnung fuer die Steuerung des Quecksilberdampfdruckes
DE60000066T2 (de) Fluoreszenzentladungsröhre und birnenförmige Leuchtstofflampe mit Anwendung derselben
DE10214631A1 (de) Metallhalogenidfüllung und zugehörige Lampe
DE69011145T2 (de) Einseitig gequetschte Metalldampfentladungslampe.
EP1908092A2 (fr) Nouveau gaz de remplissage pour lampe a decharge de gaz a basse pression
DE2330391A1 (de) Quecksilberdampfniederdruckentladungslampe mit amalgam
DE10214777A1 (de) Metallhalogenidlampe mit keramischem Entladungsgefäß
DE212009000075U1 (de) Glühkathodenleuchtstofflampe mit einer Vorrichtung zum Freisetzen von Quecksilber und einem Getter
DE202004013922U1 (de) Metallhalogenidlampe mit keramischem Entladungsgefäß
DE2339056A1 (de) Quecksilberdampfniederdruckentladungslampe mit amalgam
DE2009684A1 (de) Bogenentladungslampe
DE102005025418A1 (de) Metallhalogenidlampe
EP2052405B1 (fr) Corps de démarrage pour une lampe à décharge basse pression
WO2008017654A1 (fr) Amalgame de mercure pour une lampe à décharge et lampe à décharge
DE1954236C3 (de) Halogenglühlampe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

PUAF Information related to the publication of a search report (a3 document) modified or deleted

Free format text: ORIGINAL CODE: 0009199SEPU

17P Request for examination filed

Effective date: 20070605

D17D Deferred search report published (deleted)
PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

17Q First examination report despatched

Effective date: 20080313

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100323