EP1626435A2 - Starting aid for high pressure discharge lamp - Google Patents

Starting aid for high pressure discharge lamp Download PDF

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Publication number
EP1626435A2
EP1626435A2 EP05015754A EP05015754A EP1626435A2 EP 1626435 A2 EP1626435 A2 EP 1626435A2 EP 05015754 A EP05015754 A EP 05015754A EP 05015754 A EP05015754 A EP 05015754A EP 1626435 A2 EP1626435 A2 EP 1626435A2
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EP
European Patent Office
Prior art keywords
burner
antenna
ignition
burner tube
ignition aid
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
EP05015754A
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German (de)
French (fr)
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EP1626435A3 (en
EP1626435B1 (en
Inventor
Walter Schaaf
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Flowil International Lighting Holding BV
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Flowil International Lighting Holding BV
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Publication date
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Priority to DE200520021546 priority Critical patent/DE202005021546U1/en
Publication of EP1626435A2 publication Critical patent/EP1626435A2/en
Publication of EP1626435A3 publication Critical patent/EP1626435A3/en
Application granted granted Critical
Publication of EP1626435B1 publication Critical patent/EP1626435B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/541—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch
    • H01J61/544—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch and an auxiliary electrode outside the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr

Definitions

  • the invention relates to an ignition aid for a high-pressure discharge lamp, in particular a high-pressure sodium (SHP) lamp having a burner tube around a of quartz or a translucent ceramic, in particular of polycrystalline alumina (PCA), consisting of two ends and wound on the outer surface the same adjacent and also having two ends antenna of wire, as well as with two of its two ends forth in the burner tube protruding electrodes.
  • SHP high-pressure sodium
  • PCA polycrystalline alumina
  • High pressure discharge lamps such as metal halide lamps or high pressure sodium vapor lamps, require a high ignition voltage to start, usually generated by a particular ignition source.
  • Such high-pressure discharge lamps are equipped with a starting aid, which improves the ignition behavior.
  • the required high voltage pulse is generated in the ignition source and applied between the electrodes.
  • an ignition aid in which the antenna consists of titanium nitride or of another metal nitride, which is sintered as a powder in strip form in the wall of a PCA burner.
  • the antenna consists of titanium nitride or of another metal nitride, which is sintered as a powder in strip form in the wall of a PCA burner.
  • Burner tubes made of PCA are available on the market without difficulty and freely available, but such burner tubes with different antennas of the type described not. The preparation of such ignition aids is thus not only quite difficult but also expensive.
  • inductive ignition aids the electrical contacting of the sintered antenna by a bimetallic spring is problematic because it happens that in the process of Einsinterns material of the antenna just where the bimetallic spring comes to rest, is covered by material of the burner.
  • This known design already has rings running around the burner tube in the area of the electrodes, with which the antenna is connected to their respective ends in order to avoid possible eccentric arrangements of the electrodes, ie. H. whose deviations from the central axis thereof, which may occur during melting in the burner tube, must be taken into account.
  • US-A-5 757 137 discloses a starting aid which extends as a rectilinear wire along the burner tube and at one end of which is partially wrapped around it and supported at the other end of the burner tube by a separate support which is a complicated one Construction owns.
  • the cleavage of the rings allows their clamping fit on the combustion tube ends and also their application to burner tubes, which differ slightly from the standard diameter, as long as a sufficient bias voltage is ensured.
  • the antenna ends are wound around the burner tube after the rings are applied and welded to the outside of the rings.
  • the invention allows the use of the starting aid for different types of lamps, since they still after completion, for. B. a PCA burner, can be attached to the same.
  • a drop of ceramic adhesive or cement in the form of a suspension is after placing the Rings applied to these or the ends of the antenna and the burner tube.
  • the ceramic cement or putty can advantageously contain aluminum oxide, which has the same coefficient of thermal expansion as the PCA pipe.
  • an ignition aid according to the invention for inductive ignition in a arranged in an envelope bulb burner is a known bimetallic designed to connect the antenna with an ignition source
  • the bimetallic spring in the cold state of the burner at the farthest from the base Ring can come to the plant.
  • the metallic contact ensures a low contact resistance for the current.
  • the bimetal spring interrupts the power supply to the antenna under the influence of the rising temperature to prevent sodium losses through the wall of the burner tube in the case of a high pressure sodium vapor lamp.
  • the antenna is made of molybdenum while the rings are made of stainless steel.
  • the rings are made of stainless steel.
  • other metals may also be used.
  • Fig. 1 is in an outer envelope 1 with a base 2 of a SHP lamp 3 around a two ends 4 and 5 exhibiting burner tube 6 of PCA around and on the outer surface of the burner tube abutting a likewise two ends 7 and 8 having Antenna 9 an ignition aid 12 is provided.
  • a base 2 of a SHP lamp 3 around a two ends 4 and 5 exhibiting burner tube 6 of PCA around and on the outer surface of the burner tube abutting a likewise two ends 7 and 8 having Antenna 9 an ignition aid 12 is provided.
  • There are two protruding from the two ends 4 and 5 in the burner tube 6 electrodes 10 and 11 are present.
  • the cement or cement 15, 16 drying at ambient temperature is in each case applied as a suspension drop and curable at the operating temperature of the burner 18, whereby this drop firmly bonds to the surface of the burner tube 6.
  • FIGS. 1, 2 and 3 is an ignition aid for inductive ignition, in which a bimetallic spring 17 is provided for connection to an ignition source, not shown.
  • This bimetallic spring 17 is in the cold state of the burner 18 at the farthest from the base 2 ring 13 at.
  • the burner 18 is fixed within the enveloping piston 1 by two holders 19 and 20 on the one hand on the base 2 and on the other hand on a depression 21 on the opposite end 22 of the enveloping piston 1.
  • These brackets 19 and 20 are also the power supply of terminals 23 and 24 to the electrodes 10 and 11, wherein between the terminal 24 and the holder 19, a lead wire 25 is connected.
  • With 26 a getter is designated.
  • Reference numerals 27 and 28 designate welding points of the antenna ends 7 and 8 on the rings 13 and 14.
  • the electrodes 10 and 11 fused at the ends 4, 5 of the burner tube 6 have terminals 29 and 30 for conductive connection to the holders 19 and 20.
  • a not shown power source for feeding the burner 18 also serves as the above-mentioned ignition source for the ignition aid 12th
  • FIGS. 4, 5 and 6 with a capacitive ignition aid 12 ' is according to the invention of the first embodiment shown in FIGS. 1 and 2 with an inductive priming aid 12 largely the same, which is why in each case the same parts have been provided with the same reference numerals are. Again, the slightly different position of the antenna ends 7, 8 in FIGS. 5 and 6 with respect to FIG. 4 is not relevant here.
  • the capacitive ignition aid 12 'according to FIG. 4 has no electrical connection to the current-carrying holder 19 and the respective suspension drops of the cement or cement 15, 16 are on the ends 7 and 8 of the antenna 9 and the adjacent surface of the burner tube 6 has been applied, wherein the rings 13, 14 have a greater distance from the edges 31 and 32 of the burner tube 6.
  • the brackets 19 'and 20' have a relation to the brackets 19 and 20 slightly changed shape.

Abstract

A wire antenna (WA) (9) is coiled round a burner (18) tube (6) made from quartz/translucent ceramic/polycrystalline aluminum oxide with two ends (7,8). The WA fits on the burner's external surface. Two electrodes (10,11) protrude into the burner tube with both their ends (4,5).

Description

Die Erfindung betrifft eine Zündhilfe für eine Hochdruckentladungslampe, insbesondere eine Hochdrucknatriumdampflampe (SHP-Lampe) mit einer um ein aus Quarz oder einer lichtdurchlässigen Keramik, insbesondere aus polykristallinem Aluminiumoxid (PCA), bestehendes, zwei Enden aufweisendes, Brennerrohr herum gewendelten und an der äußeren Oberfläche desselben anliegenden und ebenfalls zwei Enden aufweisenden Antenne aus Draht, sowie mit zwei von seinen beiden Enden her in das Brennerrohr hineinragenden Elektroden.The invention relates to an ignition aid for a high-pressure discharge lamp, in particular a high-pressure sodium (SHP) lamp having a burner tube around a of quartz or a translucent ceramic, in particular of polycrystalline alumina (PCA), consisting of two ends and wound on the outer surface the same adjacent and also having two ends antenna of wire, as well as with two of its two ends forth in the burner tube protruding electrodes.

Hochdruckentladungslampen, wie Metallhalogenlampen oder Hochdrucknatriumdampflampen, brauchen zum Starten eine hohe Zündspannung, die üblicherweise von einer speziellen Zündquelle erzeugt wird. Derartige Hochdruckentladungslampen werden mit einer Zündhilfe ausgerüstet, die das Zündverhalten verbessert. Der benötigte Hochspannungsimpuls wird in der Zündquelle erzeugt und zwischen den Elektroden angelegt.High pressure discharge lamps, such as metal halide lamps or high pressure sodium vapor lamps, require a high ignition voltage to start, usually generated by a particular ignition source. Such high-pressure discharge lamps are equipped with a starting aid, which improves the ignition behavior. The required high voltage pulse is generated in the ignition source and applied between the electrodes.

Es ist eine Zündhilfe der eingangs genannten Bauart bekannt (US-PS-4 520 294), bei welcher die Antenne mit einem eingebauten Starter verbunden ist, der die benötigten Hochspannungspulse erzeugt. Die Antenne ist dabei nicht am Brennerrohr selber festgelegt sondern nur an gesonderten Halterungen innerhalb eines Hüllkolbens und lässt sich somit nicht unabhängig von den Halterungen am Brennerrohr anbringen. Dies ist aufwendig und kostenträchtig. Außerdem kann sich die Zündhilfe unter dem Einfluß der auftretenden Wärmespannungen bei den vorhandenen hohen Betriebstemperaturen am Brennerrohr verlagern, was sich sehr nachteilig auf das Zündverhalten auswirkt.There is a Zündhilfe of the aforementioned type known (US-PS-4 520 294), in which the antenna is connected to a built-in starter, which generates the required high-voltage pulses. The antenna is not fixed to the burner tube itself but only on separate brackets within a Hüllkolbens and thus can not be independent of the brackets attach to the burner tube. This is complicated and costly. In addition, the ignition aid can under the influence of the thermal stresses occurring relocate at the existing high operating temperatures on the burner tube, which has a very adverse effect on the ignition.

Ferner ist eine Zündhilfe bekannt (EP-1 355 345 A1), bei welcher die Antenne aus Titannitrid oder aus einem anderen Metallnitrid besteht, das jeweils als Pulver in Streifenform in die Wand eines PCA-Brenners eingesintert wird. Für verschiedene Lampentypen müssen verschiedene Antennen und deren Materialien eingesetzt werden. Brennerrohre aus PCA sind am Markt ohne Schwierigkeit verfügbar und frei erhältlich, derartige Brennerrohre mit verschiedenen Antennen der beschriebenen Art jedoch nicht. Die Herstellung solcher Zündhilfen ist somit nicht nur recht schwierig sondern auch aufwendig. Außerdem ist bei induktiven Zündhilfen das elektrische Kontaktieren der eingesinterten Antenne durch eine Bimetallfeder problematisch, da es vorkommt, dass beim Prozeß des Einsinterns Material der Antenne gerade dort, wo die Bimetallfeder zur Anlage kommt, von Material des Brenners abgedeckt wird. Diese bekannte Bauform besitzt bereits im Bereich der Elektroden um das Brennerrohr herumlaufende Ringe, mit denen die Antenne mit ihren jeweiligen Enden in Verbindung steht, um möglichen exzentrischen Anordnungen der Elektroden, d. h. deren gegebenenfalls beim Einschmelzen im Brennerrohr auftretende Abweichungen von dessen Mittelachse, Rechnung zu tragen.Further, an ignition aid is known (EP-1 355 345 A1), in which the antenna consists of titanium nitride or of another metal nitride, which is sintered as a powder in strip form in the wall of a PCA burner. For different lamp types different antennas and their materials have to be used. Burner tubes made of PCA are available on the market without difficulty and freely available, but such burner tubes with different antennas of the type described not. The preparation of such ignition aids is thus not only quite difficult but also expensive. In addition, in inductive ignition aids, the electrical contacting of the sintered antenna by a bimetallic spring is problematic because it happens that in the process of Einsinterns material of the antenna just where the bimetallic spring comes to rest, is covered by material of the burner. This known design already has rings running around the burner tube in the area of the electrodes, with which the antenna is connected to their respective ends in order to avoid possible eccentric arrangements of the electrodes, ie. H. whose deviations from the central axis thereof, which may occur during melting in the burner tube, must be taken into account.

Außerdem ist aus der US-A-2003/0006705 eine Zündhilfe der eingangs genannten Bauart bekannt, die lediglich um das Brennerrohr gewickelt ist, ohne daß gesonderten Elemente zur Festlegung der Zündhilfe am Brennerrohr vorgesehen wären.In addition, from US-A-2003/0006705 an ignition aid of the aforementioned type is known, which is wound only around the burner tube, without separate elements would be provided for fixing the ignition aid on the burner tube.

Schließlich ist aus der US-A-5 757 137 eine Zündhilfe bekannt, die sich als geradliniger Draht längs des Brennerrohrs erstreckt und am einen Ende desselben teilweise um dasselbe geschlungen ist und am anderen Ende des Brennerrohrs von einer gesonderten Halterung abgestützt ist, die einen komplizierten Aufbau besitzt.Finally, US-A-5 757 137 discloses a starting aid which extends as a rectilinear wire along the burner tube and at one end of which is partially wrapped around it and supported at the other end of the burner tube by a separate support which is a complicated one Construction owns.

Die der Erfindung zugrundeliegende Aufgabe wird darin gesehen, eine Zündhilfe der eingangs genannten Bauart zu schaffen, die eine kostengünstige, flexible Fertigung und die Verwendung gleicher Brennerrohre für unterschiedliche Lampentypen ermöglicht, ohne dass Einsinterungen benötigt würden.The problem underlying the invention is seen to provide an ignition aid of the type mentioned, which allows a cost-effective, flexible production and the use of the same burner tubes for different lamp types, without Einsinterungen would be needed.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass im Bereich der Elektroden auf jedem Ende des Brennerrohrs ein gespaltener Klemmring unter Vorspannung aufgebracht ist, dass die Antenne mit jedem ihrer beiden Enden an jeweils einem der Ringe angeschweißt ist, und dass die Ringe oder die Enden der Antenne jeweils mit einem keramischen Zement bzw. Kitt an der Oberfläche des Brennerrohrs festgelegt sind.This object is achieved in that in the region of the electrodes on each end of the burner tube a split clamping ring is applied under bias that the antenna is welded to each of its two ends to each one of the rings, and that the rings or the ends of the antenna are each fixed with a ceramic cement or putty on the surface of the burner tube.

Die Spaltung der Ringe ermöglicht ihren Klemmsitz auf den Brennrohrenden und auch ihre Aufbringung auf Brennerrohre, die vom Normdurchmesser geringfügig abweichen, solange eine ausreichende Vorspannung sichergestellt ist. Die Antennenenden werden nach dem Aufbringen der Ringe um das Brennerrohr gewickelt und mit den Außenseiten der Ringe verschweißt. Vor allen Dingen ermöglicht die Erfindung die Verwendung der Zündhilfe für verschiedene Lampentypen, da sie noch nach der Fertigstellung, z. B. eines PCA-Brenners, an demselben angebracht werden kann. Ein Tropfen keramischer Klebstoff bzw. Kitt in Form einer Suspension wird nach dem Aufsetzen der Ringe auf diese oder die Enden der Antenne und das Brennerrohr aufgebracht.The cleavage of the rings allows their clamping fit on the combustion tube ends and also their application to burner tubes, which differ slightly from the standard diameter, as long as a sufficient bias voltage is ensured. The antenna ends are wound around the burner tube after the rings are applied and welded to the outside of the rings. Above all, the invention allows the use of the starting aid for different types of lamps, since they still after completion, for. B. a PCA burner, can be attached to the same. A drop of ceramic adhesive or cement in the form of a suspension is after placing the Rings applied to these or the ends of the antenna and the burner tube.

Diese Tropfen sichern nach ihrer Trocknung bei Umgebungstemperatur die Ringe oder die genannten Enden und stets die Antenne an der Oberfläche des Brennerrohres gegen jedwede Verlagerung während der Montage. Nach dem Zünden des Brenners und bei Erreichen von dessen Betriebstemperatur sintert das Material des jeweiligen Tropfens mit dem Material des Brenners zusammen und sorgt für eine unverrückbare Festlegung der Ringe oder der Enden der Antenne, sowie der Antenne selber, an der Brenneroberfläche, und damit für ein einwandfreies Zünden des Brenners während dessen gesamter Lebensdauer.These drops, after drying at ambient temperature, secure the rings or said ends and always the antenna on the surface of the burner tube against any displacement during assembly. After ignition of the burner and on reaching its operating temperature, the material of the respective droplet sinters together with the material of the burner and ensures an immovable fixing of the rings or the ends of the antenna, and the antenna itself, to the burner surface, and thus for a proper ignition of the burner throughout its lifetime.

Dabei kann der keramische Zement bzw. Kitt vorteilhaft Aluminiumoxid enthalten, das den gleichen Wärmeausdehnungskoeffizienten aufweist wie das PCA-Rohr.In this case, the ceramic cement or putty can advantageously contain aluminum oxide, which has the same coefficient of thermal expansion as the PCA pipe.

Bei einer erfindungsgemäßen Zündhilfe für induktive Zündung bei einem in einem Hüllkolben mit Sockel angeordneten Brenner ist zweckmäßig eine an sich bekannte Bimetallfeder zur Verbindung der Antenne mit einer Zündquelle vorgesehen, wobei gemäß der Erfindung die Bimetallfeder im kalten Zustand des Brenners an dem am weitesten vom Sockel abgelegenen Ring zur Anlage kommen kann. Das metallische Kontaktieren sichert einen geringen Übergangswiderstand für den Strom. Nach dem Zünden unterbricht die Bimetallfeder unter dem Einfluß der ansteigenden Temperatur die Stromzufuhr zur Antenne, um im Falle einer Hochdrucknatriumdampflampe Natriumverluste durch die Wand des Brennerrohrs hindurch zu vermeiden.In an ignition aid according to the invention for inductive ignition in a arranged in an envelope bulb burner is a known bimetallic designed to connect the antenna with an ignition source, according to the invention, the bimetallic spring in the cold state of the burner at the farthest from the base Ring can come to the plant. The metallic contact ensures a low contact resistance for the current. After ignition, the bimetal spring interrupts the power supply to the antenna under the influence of the rising temperature to prevent sodium losses through the wall of the burner tube in the case of a high pressure sodium vapor lamp.

Bei einer bevorzugten Ausführungsform besteht die Antenne aus Molybdän, während die Ringe aus Chromnickelstahl bestehen. Es können jedoch je nach Anwendung auch anderweitige Metalle Verwendung finden.In a preferred embodiment, the antenna is made of molybdenum while the rings are made of stainless steel. However, depending on the application, other metals may also be used.

Die Erfindung und ihre vorteilhaften Weiterbildungen sind als Ausführungsformen im folgenden anhand der Zeichnungen näher erläutert.The invention and its advantageous developments are described as embodiments in the following with reference to the drawings.

Es zeigt:

  • Fig. 1
    eine Draufsicht auf eine SHP-Lampe mit einem Hüllkolben mit Sockel und einem in dem Hüllkolben angeordneten PCA-Brenner mit einer induktiven Zündhilfe nach der Erfindung;
  • Fig. 2
    eine Draufsicht auf eine Seite des Endes des PCA-Brenners mit der induktiven Zündhilfe nach Fig. 1 in leicht abgewandelter Form und in vergrößertem Maßstab;
  • Fig. 3
    einen Schnitt längs der Linie III-III in Fig. 2;
  • Fig. 4
    eine Draufsicht auf eine SHP-Lampe mit einem Hüllkolben mit Sockel und einem in dem Hüllkolben angeordneten PCA-Brenner mit einer kapazitiven Zündhilfe nach der Erfindung;
  • Fig. 5
    eine Draufsicht auf eine Seite des Endes des PCA-Brenners mit der kapazitiven Zündhilfe nach Fig. 4 in leicht abgewandelter Form und in vergrößertem Maßstab.
  • Fig. 6
    einen Schnitt längs der Linie VI-VI in Fig. 5.
It shows:
  • Fig. 1
    a plan view of a SHP lamp with an enveloping bulb with base and a arranged in the enveloping piston PCA burner with an inductive ignition aid according to the invention;
  • Fig. 2
    a plan view of one side of the end of the PCA burner with the inductive ignition aid of Figure 1 in a slightly modified form and on an enlarged scale.
  • Fig. 3
    a section along the line III-III in Fig. 2;
  • Fig. 4
    a plan view of a SHP lamp with an enveloping bulb with base and a arranged in the enveloping piston PCA burner with a capacitive ignition aid according to the invention;
  • Fig. 5
    a plan view of one side of the end of the PCA burner with the capacitive ignition aid of FIG. 4 in a slightly modified form and on an enlarged scale.
  • Fig. 6
    a section along the line VI-VI in Fig. 5th

Gemäß der Ausführungsform nach Fig. 1 ist in einem Hüllkolben 1 mit einem Sockel 2 einer SHP-Lampe 3 um ein zwei Enden 4 und 5 aufweisendes Brennerrohr 6 aus PCA herum und an der äußeren Oberfläche des Brennerrohrs anliegendend eine ebenfalls zwei Enden 7 und 8 aufweisende Antenne 9 einer Zündhilfe 12 vorgesehen. Es sind zwei von seinen beiden Enden 4 und 5 in das Brennerrohr 6 hineinragende Elektroden 10 und 11 vorhanden.According to the embodiment of Fig. 1 is in an outer envelope 1 with a base 2 of a SHP lamp 3 around a two ends 4 and 5 exhibiting burner tube 6 of PCA around and on the outer surface of the burner tube abutting a likewise two ends 7 and 8 having Antenna 9 an ignition aid 12 is provided. There are two protruding from the two ends 4 and 5 in the burner tube 6 electrodes 10 and 11 are present.

Erfindungsgemäß ist im Bereich der Elektroden 10 und 11 auf jedem Ende 4, 5 des Brennerrohres 6 ein gespaltener Klemmring 13, 14 unter Vorspannung aufgebracht; die Antenne 9 ist mit jedem ihrer beiden Enden 7, 8 an jeweils einem der Ringe 13, 14 angeschweißt. Die Ringe 13, 14 sind jeweils mit einem keramischen Zement bzw. Kitt 15, 16 an der Oberfläche des Brennerrohrs 6 festgelegt.According to the invention, a split clamping ring 13, 14 is applied under prestress in the region of the electrodes 10 and 11 on each end 4, 5 of the burner tube 6; the antenna 9 is welded to each of its two ends 7, 8 on each of the rings 13, 14. The rings 13, 14 are each fixed with a ceramic cement or putty 15, 16 on the surface of the burner tube 6.

Der bei Umgebungstemperatur trocknende Zement bzw. Kitt 15, 16 ist jeweils als Suspensionstropfen aufgebracht und bei Betriebstemperatur des Brenners 18 aushärtbar, wobei sich dieser Tropfen mit der Oberfläche des Brennerrohres 6 fest verbindet.The cement or cement 15, 16 drying at ambient temperature is in each case applied as a suspension drop and curable at the operating temperature of the burner 18, whereby this drop firmly bonds to the surface of the burner tube 6.

Zweckmäßig enthält auch der keramische Zement bzw. Kitt Aluminiumoxid und weist nach seiner Trocknung den gleichen Wärmeausdehnungskoeffizienten auf wie das PCA-Rohr.Suitably also contains the ceramic cement or putty alumina and has after its drying the same thermal expansion coefficient as the PCA tube.

Die in der Fig. 1 einerseits und in den Fig. 2 und 3 andererseits etwas unterschiedliche Lage der Antennenenden 7 und 8, ist hier nicht relevant.The one hand in Fig. 1 on the one hand and in Figs. 2 and 3, on the other hand, slightly different position of the antenna ends 7 and 8, is not relevant here.

Bei der in den Fig. 1, 2 und 3 gezeigten Ausführungsform handelt es sich um eine Zündhilfe für induktive Zündung, bei der eine Bimetallfeder 17 zur Verbindung mit einer nicht gezeigten Zündquelle vorgesehen ist. Diese Bimetallfeder 17 liegt im kalten Zustand des Brenners 18 an dem am weitesten vom Sockel 2 abgelegenen Ring 13 an.In the embodiment shown in FIGS. 1, 2 and 3 is an ignition aid for inductive ignition, in which a bimetallic spring 17 is provided for connection to an ignition source, not shown. This bimetallic spring 17 is in the cold state of the burner 18 at the farthest from the base 2 ring 13 at.

Wie Fig. 1 zu entnehmen ist, wird der Brenner 18 innerhalb des Hüllkolbens 1 von zwei Halterungen 19 und 20 einerseits am Sockel 2 und andererseits an einer Eindrückung 21 am gegenüberliegenden Ende 22 des Hüllkolbens 1 fixiert. Diese Halterungen 19 und 20 dienen ferner der Stromzufuhr von Anschlüssen 23 und 24 zu den Elektroden 10 und 11, wobei zwischen dem Anschluss 24 und der Halterung 19 ein Leitungsdraht 25 geschaltet ist. Mit 26 ist ein Getter bezeichnet. Die Bezugszeichen 27 und 28 bezeichnen Schweißpunkte der Antennenenden 7 und 8 an den Ringen 13 und 14. Die an den Enden 4, 5 des Brennerrohrs 6 eingeschmolzenen Elektroden 10 und 11 besitzen Anschlüsse 29 und 30 zur leitenden Verbindung mit den Halterungen 19 und 20. Eine nicht gezeigte Stromquelle zur Speisung des Brenners 18 dient gleichzeitig als die oben erwähnte Zündquelle für die Zündhilfe 12.As can be seen in FIG. 1, the burner 18 is fixed within the enveloping piston 1 by two holders 19 and 20 on the one hand on the base 2 and on the other hand on a depression 21 on the opposite end 22 of the enveloping piston 1. These brackets 19 and 20 are also the power supply of terminals 23 and 24 to the electrodes 10 and 11, wherein between the terminal 24 and the holder 19, a lead wire 25 is connected. With 26 a getter is designated. Reference numerals 27 and 28 designate welding points of the antenna ends 7 and 8 on the rings 13 and 14. The electrodes 10 and 11 fused at the ends 4, 5 of the burner tube 6 have terminals 29 and 30 for conductive connection to the holders 19 and 20. A not shown power source for feeding the burner 18 also serves as the above-mentioned ignition source for the ignition aid 12th

Die in den Fig. 4, 5 und 6 gezeigte zweite Ausführungsform mit einer kapazitiven Zündhilfe 12' ist erfindungsgemäß der in den Fig. 1 und 2 gezeigten ersten Ausführungsform mit einer induktiven Zündhilfe 12 weitgehend gleich, weshalb jeweils gleiche Teile mit jeweils gleichen Bezugszeichen versehen worden sind. Auch hier ist die etwas unterschiedliche Lage der Antennenenden 7, 8 in den Fig. 5 und 6 gegenüber der Fig. 4 hier nicht relevant.The second embodiment shown in FIGS. 4, 5 and 6 with a capacitive ignition aid 12 'is according to the invention of the first embodiment shown in FIGS. 1 and 2 with an inductive priming aid 12 largely the same, which is why in each case the same parts have been provided with the same reference numerals are. Again, the slightly different position of the antenna ends 7, 8 in FIGS. 5 and 6 with respect to FIG. 4 is not relevant here.

Zum Unterschied von der induktiven Zündhilfe 12 nach den Fig. 1 und 2 besitzt die kapazitive Zündhilfe 12' nach der Fig. 4 keine elektrische Verbindung zur stromführenden Halterung 19 und die jeweiligen Suspensionstropfen des Zements bzw. Kitts 15, 16 sind auf die Enden 7 und 8 der Antenne 9 und die angrenzende Oberfläche des Brennerrohrs 6 aufgebracht worden, wobei die Ringe 13, 14 einen größeren Abstand von den Rändern 31 und 32 des Brennerrohrs 6 aufweisen. Aus den genannten Gründen gibt es hier keine Bimetallfeder. Die Halterungen 19' und 20' besitzen eine gegenüber den Halterungen 19 und 20 etwas veränderte Gestalt.In contrast to the inductive ignition aid 12 according to FIGS. 1 and 2, the capacitive ignition aid 12 'according to FIG. 4 has no electrical connection to the current-carrying holder 19 and the respective suspension drops of the cement or cement 15, 16 are on the ends 7 and 8 of the antenna 9 and the adjacent surface of the burner tube 6 has been applied, wherein the rings 13, 14 have a greater distance from the edges 31 and 32 of the burner tube 6. For the reasons mentioned, there is no bimetallic spring here. The brackets 19 'and 20' have a relation to the brackets 19 and 20 slightly changed shape.

Claims (6)

Zündhilfe (12, 12') für eine Hochdruckentladungslampe, insbesondere eine Hochdrucknatriumdampflampe (SHP-Lampe) (3) mit einer um ein aus Quarz oder einer lichtdurchlässigen Keramik, insbesondere aus polykristallinem Aluminiumoxid, bestehendes, zwei Enden (4, 5) aufweisendes, Brennerrohr (6) eines Brenners (18) herum gewendelten und an der äußeren Oberfläche desselben anliegenden und ebenfalls zwei Enden (7, 8) aufweisenden Antenne (9) aus Draht, sowie mit zwei von seinen beiden Enden (4, 5) her in das Brennerrohr (6) hineinragenden Elektroden (10, 11),
dadurch gekennzeichnet,
dass im Bereich der Elektroden (10, 11) auf jedem Ende (4, 5) des Brennerrohrs (6) ein gespaltener Klemmring (13, 14) unter Vorspannung aufgebracht ist, dass die Antenne (9) mit jedem ihrer beiden Enden (7, 8) an jeweils einem der Ringe (13, 14) angeschweißt ist, und dass die Ringe (13, 14) oder die Enden (7, 8) der Antenne (9) jeweils mit einem keramischen Zement bzw. Kitt (15, 16) an der Oberfläche des Brennerrohrs (6) festgelegt sind.Ignition aid (12, 12 ') for a high-pressure discharge lamp, in particular a high-pressure sodium lamp (SHP lamp) (3) with a burner tube consisting of quartz or a translucent ceramic, in particular of polycrystalline aluminum oxide, having two ends (4, 5) (6) of a torch (18) wound around and on the outer surface of the same and also two ends (7, 8) having antenna (9) made of wire, and with two of its two ends (4, 5) ago in the burner tube (6) protruding electrodes (10, 11),
characterized,
in that in the region of the electrodes (10, 11) on each end (4, 5) of the burner tube (6) a split clamping ring (13, 14) is biased such that the antenna (9) is connected at each of its two ends (7, 8) is welded to each one of the rings (13, 14), and that the rings (13, 14) or the ends (7, 8) of the antenna (9) each with a ceramic cement or putty (15, 16) are fixed to the surface of the burner tube (6). Zündhilfe (12, 12') nach Anspruch 1,
dadurch gekennzeichnet,
dass der bei Umgebungstemperatur trocknende Zement bzw. Kitt (15, 16) bei Betriebstemperatur des Brenners (18) aushärtbar ist.Ignition aid (12, 12 ') according to claim 1,
characterized,
in that the cement or cement (15, 16) drying at ambient temperature is curable at the operating temperature of the burner (18). Zündhilfe (12, 12') nach Anspruch 1 oder 2 mit einem Brennerrohr (6) aus polykristallinem Aluminiumoxid (PCA),
dadurch gekennzeichnet,
dass auch der keramische Zement (15, 16) Aluminiumoxid enthält und nach seiner Trocknung den gleichen Wärmeausdehnungskoeffizienten aufweist wie des PCA-Rohr.Ignition aid (12, 12 ') according to claim 1 or 2 with a burner tube (6) made of polycrystalline aluminum oxide (PCA),
characterized,
that the ceramic cement (15, 16) contains alumina and after drying it has the same coefficient of thermal expansion as the PCA tube. Zündhilfe (12, 12') nach Anspruch 1, 2 oder 3 für induktive Zündung bei einem in einem Hüllkolben (1) mit Sockel (2) angeordneten Brenner (18) ,
dadurch gekennzeichnet,
dass eine an sich bekannte Bimetallfeder (17) zur Verbindung der Antenne (9) mit einer Zündquelle vorgesehen ist, und dass diese Bimetallfeder (17) im kalten Zustand des Brenners (18) an dem am weitesten vom Sockel (2) abgelegenen Ring (13) anliegt.Ignition aid (12, 12 ') according to claim 1, 2 or 3 for inductive ignition in a burner (18) arranged in an enveloping piston (1) with base (2),
characterized,
in that a bimetallic spring (17) known per se is provided for connecting the antenna (9) to an ignition source, and that this bimetal spring (17) is in the cold state of the burner (18) at the ring farthest from the base (2) ) is present. Zündhilfe (12, 12') nach Anspruch 1,
dadurch gekennzeichnet,
dass die Antenne (9) aus Molybdän besteht.Ignition aid (12, 12 ') according to claim 1,
characterized,
that the antenna (9) is made of molybdenum. Zündhilfe (12, 12') nach Anspruch 1,
dadurch gekennzeichnet,
dass die Ringe (13, 14) aus CrNi-Stahl bestehen.Ignition aid (12, 12 ') according to claim 1,
characterized,
that the rings (13, 14) consist of stainless steel.
EP05015754A 2004-07-23 2005-07-20 High pressure discharge lamp with a starting aid Not-in-force EP1626435B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200520021546 DE202005021546U1 (en) 2005-07-20 2005-07-20 Ignition aid for a high pressure discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004035931A DE102004035931B4 (en) 2004-07-23 2004-07-23 Ignition aid for a high-pressure gas discharge lamp like a high-pressure sodium vapor discharge lamp has a wire antenna coiled round a burner tube

Publications (3)

Publication Number Publication Date
EP1626435A2 true EP1626435A2 (en) 2006-02-15
EP1626435A3 EP1626435A3 (en) 2007-11-28
EP1626435B1 EP1626435B1 (en) 2008-12-31

Family

ID=35466473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05015754A Not-in-force EP1626435B1 (en) 2004-07-23 2005-07-20 High pressure discharge lamp with a starting aid

Country Status (4)

Country Link
EP (1) EP1626435B1 (en)
AT (1) ATE419644T1 (en)
DE (2) DE102004035931B4 (en)
ES (1) ES2320779T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8659225B2 (en) 2011-10-18 2014-02-25 General Electric Company High intensity discharge lamp with crown and foil ignition aid
US8766518B2 (en) 2011-07-08 2014-07-01 General Electric Company High intensity discharge lamp with ignition aid
NL2019049A (en) * 2016-06-14 2017-07-26 Plusrite Electric (China) Co Ltd High par maintenance type high-voltage sodium lamp with start-assisting switch

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JPS55146859A (en) 1979-05-04 1980-11-15 Ricoh Co Ltd Flash discharge lamp
US4520294A (en) 1982-08-23 1985-05-28 Iwasaki Electric Co., Ltd. High pressure metal vapor discharge lamp
US5757137A (en) 1992-11-24 1998-05-26 Osram Sylvania Inc. High pressure sodium lamp with bimetallic starting aid and ignition wire
US20030006705A1 (en) 2001-05-08 2003-01-09 Koninklijke Philips Electronics N.V. Coil antenna/protection for ceramic metal halide lamps
EP1355345A1 (en) 2002-04-16 2003-10-22 Osram-Sylvania Inc. Integral starting aid for high intensity discharge lamps

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US3900753A (en) * 1974-05-23 1975-08-19 Gte Sylvania Inc High pressure sodium vapor lamp having low starting voltage
JPS5267174A (en) * 1975-12-02 1977-06-03 Iwasaki Electric Co Ltd High voltage discharge lamp containing starter circuit
US4179640A (en) * 1977-12-05 1979-12-18 Westinghouse Electric Corp. Hid sodium lamp which incorporates a high pressure of xenon and a trigger starting electrode
JPS55119339A (en) * 1979-03-06 1980-09-13 Matsushita Electronics Corp Flashing electric discharge tube
US4491766A (en) * 1982-06-24 1985-01-01 North American Philips Lighting Corporation High pressure electric discharge lamp employing a metal spiral with positive potential
US5109183A (en) * 1990-12-13 1992-04-28 U.S. Philips Corporation High pressure discharge lamp having a simplified mount construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55146859A (en) 1979-05-04 1980-11-15 Ricoh Co Ltd Flash discharge lamp
US4520294A (en) 1982-08-23 1985-05-28 Iwasaki Electric Co., Ltd. High pressure metal vapor discharge lamp
US5757137A (en) 1992-11-24 1998-05-26 Osram Sylvania Inc. High pressure sodium lamp with bimetallic starting aid and ignition wire
US20030006705A1 (en) 2001-05-08 2003-01-09 Koninklijke Philips Electronics N.V. Coil antenna/protection for ceramic metal halide lamps
EP1355345A1 (en) 2002-04-16 2003-10-22 Osram-Sylvania Inc. Integral starting aid for high intensity discharge lamps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8766518B2 (en) 2011-07-08 2014-07-01 General Electric Company High intensity discharge lamp with ignition aid
US8659225B2 (en) 2011-10-18 2014-02-25 General Electric Company High intensity discharge lamp with crown and foil ignition aid
NL2019049A (en) * 2016-06-14 2017-07-26 Plusrite Electric (China) Co Ltd High par maintenance type high-voltage sodium lamp with start-assisting switch

Also Published As

Publication number Publication date
DE102004035931B4 (en) 2006-06-14
ES2320779T3 (en) 2009-05-28
EP1626435A3 (en) 2007-11-28
ATE419644T1 (en) 2009-01-15
DE102004035931A1 (en) 2006-02-09
EP1626435B1 (en) 2008-12-31
DE502005006361D1 (en) 2009-02-12

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