• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The arc tube 1 of a high pressure sodium vapour lamp is hermetically sealed at each end by a respective ceramic stopper 2 through which are passed respective current lead-in wires 3 and 4 for an electrode 8. A cavity 9, a volume at least equal to that of the metal filling additives in their liquid phase is formed in at least one of the stoppers 2 to provide the cold spot. In operation of the tube, the metal additives always condense in the cavity, whereby the vitreous enamel bonds between the tube wall and the stoppers are free from chemically aggressive effects, and self-stabilizing thermal processes taking place in the discharge vessel are promoted. In the arrangement shown, the capillary gap formed at the entrance to the cavity permits lamp operation in any attitude. <IMAGE>
    公开号:SU1268115A3
    申请号:SU823373693
    申请日:1982-01-04
    公开日:1986-10-30
    发明作者:Чароди Миклаш；Олдал Эндре
    申请人:Эдьешюльт Иззолампа Еш Вилламошшаги Рт (Инопредприятие)；
    IPC主号:
    专利说明:

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    权利要求:
    Claims (1)
    [1]
    The invention relates to high pressure gas discharge lamps, namely, high pressure sodium lamps, and more specifically to a discharge flask (burner). Discharge flasks are known for high-pressure sodium lamps, which are designed in the form of a ceramic bushing with a sunken niobium stangele. The bottom of the flask is pumped through the pinge, after which the required filler is introduced. Following this, the outer portion of the pillar is hermetically sealed. In the discharge flask thus made, the stengel forms a cold point. During operation, metal additives in the form of sodium amalgam are collected at this location. The disadvantage of a discharge flask is the relatively expensive manufacture of high pressure sodium la.p. ibm in connection with the fact that additional complex devices must be used, as well as a regulated operating position. To simplify these lamps, no-to-drop flasks have been developed, which differ from each other mainly in the type of current lead implementation. A common distinguishing feature of a dash-free construction is that the cold-point position defined in the top of the gel-type structure is not defined here and is usually located in a place that is covered with glass cement when soldering. It is well known that glass cements used for soldering are very hygroscopic and alkaline in nature. .th. very sensitive to moisture, carbon dioxide and during manufacture to any contamination. Due to the chemical reaction that occurs between glass cement and sodium in the amalgam in direct contact with it, the composition of glass cement changes and its properties such as strength, thermal expansion coefficient, etc., deteriorate. namely, it is reduced during the burning period. Closest to the invention is a flask discharge for high-pressure sodium lamps, containing a transparent cylindrical alumina tube sealed at 15Z on both ends with helpless zero-cap ceramic plugs located inside the tube and pass through hermetically current leads through them with electrodes connected to them through a rod, and filling consisting of inert gas, sodium, mercury and / or cadmium as a metal additive. However, even in this construction, it is possible to contact glass cement used for eapayka of the electrode output with an excess of sodium amalgam located in the cavity covered by the lead, which degrades the quality of the lamps. In addition, there is another undesirable effect, which, in contrast to hinge lamps, is between a cold spot and a -. thermal contact at a short distance by the electrode is not very good and the thermal conductivity is not large enough. In this case, the temperature: cold point versus arc discharge plasma temperature is very important. As the combustion voltage increases, the energy absorbed and then emitted by the plasma increases. As a result, the pressure of sodium and mercury vapors increases and, as a result, the burning voltage increases even more, as a positive return of the lamp and its possible extinction arises. A direct electrical contact of the melt with one of the lamp electrodes is possible, which extremely adversely affects the operation of the lamp, since sodium and its alloys are materials with a very low electron work function and, as a result of this, a premature failure of the discharge flask. The aim of the invention is to improve the performance of the lamps. This goal is achieved by the fact that in a discharge flask for high-pressure sodium lamps, containing a transparent cylindrical tube made of aluminum oxide, sealed at both ends with the help of non-shading ceramic plugs located inside the tube, at least in one of which there is a cavity, hermetically passage through them, a tokopod3 of water with electrodes connected to them through a rod, and a filling consisting of inert gas, sodium mercury and / or cadmium as a metal additive, the cavity is filled per hour and plugs, free of electrical connections, and is in the extension of the axis of the electrode rod. The drawing shows one end of the proposed discharge flask. The discharge tube 1 is hermetically sealed by means of a plug 2, in which the current leads 3 are hermetically fixed. The current leads are electrically connected to the rod 4 of the electrode 5. The plug 6 has a cavity 6, which is an extension of the rod and is made in the part of the plug that is free from the current leads. Strong sealed connection between the cap and the tube and the cap and the current leads are provided by glass cement 7. If cavity 6 was absent, sodium amalgam, which is always in excess and during operation has its liquid phase, would be deposited in the region of the inner edge of the cap 2 It is in contact with tube 1. This area is covered on one side with glass cement 7, and on the other side it is exposed to the radiation of the plasma. The temperature in the cavity of the stub is lower than the temperature in the specified area, so the point is cold. 1154 B is formed by this cavity. It is here that the sodium amalgam condenses. The volume of the cavity must be equal to or greater than the volume of the liquid phase additive contained in the discharge flask of the liquid phase. Screenshots rod 4 of cavity 6 eliminates said positive feedback. The use of the proposed discharge flask will reduce the spread of the initial ignition voltages by about half. DISCLOSURE OF THE INVENTION A discharge flask for high-pressure sodium lamps, comprising a transparent cylindrical alumina tube sealed at both ends with non-shading ceramic plugs located inside the tube, at least in one of which there is a cavity, hermetically passing through them with current leads connected to them via a rod by electrodes, and a filling consisting of inert gas, sodium, mercury and / or cadmium as a metallic additive, which, in order to improve operation In lamp characteristics, said cavity portion is formed in a stub-free electrical connections, and is in continuation of the axis of the electrode rod.
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    同族专利:
    公开号 | 公开日
    IT1154254B|1987-01-21|
    GB2091031B|1985-02-27|
    AU7927982A|1982-07-15|
    ES8303817A1|1983-02-01|
    IN157500B|1986-04-12|
    CS229677B2|1984-06-18|
    RO84271B|1984-07-30|
    BE891692A|1982-04-30|
    HU181782B|1983-11-28|
    SE8200046L|1982-07-10|
    AR227454A1|1982-10-29|
    DE3200699C2|1985-05-23|
    FR2498012A1|1982-07-16|
    CH661149A5|1987-06-30|
    FR2498012B1|1985-07-12|
    NL8200011A|1982-08-02|
    US4459509A|1984-07-10|
    IT8247517D0|1982-01-07|
    GB2091031A|1982-07-21|
    JPS57145261A|1982-09-08|
    YU2882A|1984-12-31|
    ES508561A0|1983-02-01|
    DE3200699A1|1982-10-07|
    DD202078A5|1983-08-24|
    RO84271A|1984-05-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2452626A|1945-03-03|1948-11-02|Gen Electric X Ray Corp|Electron emitter|
    US3243635A|1962-12-27|1966-03-29|Gen Electric|Ceramic lamp construction|
    GB1065023A|1963-05-08|1967-04-12|Gen Electric Co Ltd|Improvements in or relating to the closure of envelopes of high alumina content material|
    JPS506648B2|1971-08-05|1975-03-17|
    DE2209868C3|1972-03-01|1982-03-11|Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München|Process for the production of an electric metal vapor discharge lamp|
    JPS4893180A|1972-03-08|1973-12-03|
    NL172194C|1973-02-16|1983-07-18|Philips Nv|HIGH PRESSURE DISCHARGE LAMP.|
    NL7311290A|1973-08-16|1975-02-18|Philips Nv|METHOD FOR CLOSING A DISCHARGE|
    US3848151A|1973-10-23|1974-11-12|Gen Electric|Ceramic envelope lamp having metal foil inleads|
    GB1571084A|1975-12-09|1980-07-09|Thorn Electrical Ind Ltd|Electric lamps and components and materials therefor|
    NZ182774A|1975-12-09|1979-06-19|Thorn Electrical Ind Ltd|Electrically conducting cermet|
    US4065691A|1976-12-06|1977-12-27|General Electric Company|Ceramic lamp having electrodes supported by crimped tubular inlead|
    HU178836B|1980-02-11|1982-07-28|Egyesuelt Izzzolampa Es Villam|Electric discharge lamp of ceramic bulb|DE3131263C1|1981-08-07|1983-02-03|M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München|Parabolic or curved reflector prodn. - involves compression onto negative former and fixing projections in carrier bushes|
    US4868457A|1985-01-14|1989-09-19|General Electric Company|Ceramic lamp end closure and inlead structure|
    JPH073783B2|1987-11-30|1995-01-18|東芝ライテック株式会社|High pressure sodium lamp|
    HU200031B|1988-03-28|1990-03-28|Tungsram Reszvenytarsasag|High-pressure discharge lamp|
    US7288303B2|2004-06-08|2007-10-30|Ngk Insulators, Ltd.|Structures of brittle materials and metals|
    US7521870B2|2004-06-08|2009-04-21|Ngk Insulators, Ltd.|Luminous containers and those for high pressure discharge lamps|
    WO2005122214A1|2004-06-08|2005-12-22|Ngk Insulators, Ltd.|Light-emitting vessel and light-emitting vessel for high-pressure discharge lamp|
    WO2009115118A1|2008-03-19|2009-09-24|Osram Gesellschaft mit beschränkter Haftung|Gas discharge lamp and method for producing a gas discharge lamp|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    HU4781A|HU181782B|1981-01-09|1981-01-09|Discharge vessel for high-pressure sodium-vapour discharge lamps|
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