EP1829432B1 - Agencement de circuit pour une unite de demarrage d'une lampe a decharge - Google Patents
Agencement de circuit pour une unite de demarrage d'une lampe a decharge Download PDFInfo
- Publication number
- EP1829432B1 EP1829432B1 EP05826541A EP05826541A EP1829432B1 EP 1829432 B1 EP1829432 B1 EP 1829432B1 EP 05826541 A EP05826541 A EP 05826541A EP 05826541 A EP05826541 A EP 05826541A EP 1829432 B1 EP1829432 B1 EP 1829432B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrodes
- spark gap
- circuit arrangement
- arrangement according
- discharge lamp
- 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
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/02—Details
- H05B41/04—Starting switches
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/02—Details
- H05B41/04—Starting switches
- H05B41/042—Starting switches using semiconductor devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S315/00—Electric lamp and discharge devices: systems
- Y10S315/05—Starting and operating circuit for fluorescent lamp
Definitions
- the invention relates to a switching arrangement for an ignition device of a discharge lamp, with a spark gap formed from three or more electrodes, which is connected in series with the primary winding of a superposition transformer and with a surge capacitor.
- ballasts for example in the form of iron chokes, required.
- ignitors are needed to generate high voltage pulses to turn on the lamps, which initiate ionization of the gas mixture in the lamps.
- the ignition pulse generator comprises an ignition circuit, which consists of a surge capacitor, the primary winding of a superposition transformer and a switching element.
- the surge capacitor must be charged to achieve the required voltage of the ignition pulses with high voltage.
- the high voltage generator usually works with the help of a transformer to generate the high voltage required for charging from the available mains voltage.
- the charged surge capacitor is periodically over the Primary winding of the superposition transformer discharged by the switching element is periodically switched on and off. When switched on, the surge capacitor and the primary winding of the superposition transformer form a high-frequency resonant circuit. The high-frequency vibrations are transformed in the secondary winding of the superposition transformer connected to the lamp and are available as ignition voltage for the lamp.
- spark gaps are used in the known igniters.
- the spark gap ignites when the surge capacitor is charged to a certain turn-on voltage.
- the spark gap then remains conductive until the surge capacitor is discharged via the primary winding of the superposition transformer to a certain cut-off voltage.
- a switching arrangement for an ignitor of a discharge lamp is previously known.
- a multi-stage spark gap is used, which is composed of two or more individual spark plugs.
- the division over several spark plugs has the advantage that the deionization time is significantly shortened. This is partly due to the improved cooling in the multi-stage arrangement.
- the previously known Switching arrangement is particularly suitable for use in an ignition circuit of a high-pressure discharge lamp.
- the multi-stage spark gap enables the generation of up to 4000 ignition pulses per second.
- the previously known from the prior art switching arrangement has the disadvantage that the spark gap is constructed comparatively expensive.
- the electrodes of the spark gap are in the known arrangement massive copper body, which are arranged concentrically in an insulating tube, in the axial direction one behind the other.
- the gas discharge gaps between the individual electrodes are filled with a special gas mixture, which consists partly of hydrogen.
- the end faces of the electrodes are provided with an activation layer of sodium silicate and a further metal component. Due to the special materials of the electrodes and the gas filling of the entire arrangement, the previously known spark gap is extremely expensive to manufacture. The thus equipped ignitors for discharge lamps are therefore expensive.
- the invention starting from a switching arrangement of the type mentioned above in that the electrodes are cylindrical, wherein the cylinder axes are aligned side by side and parallel to each other, in such a way that perpendicular to the cylinder axes, a multi-stage air gap is formed.
- An essential aspect of the invention is the use of as easy to produce electrodes for the spark gap.
- the electrodes used according to the invention are cylindrical and can be manufactured as simple turned parts.
- the material used for the electrodes is V4A steel, which is a standard material that is available at low cost.
- V4A steel which is a standard material that is available at low cost.
- short switching times or high pulse frequencies for igniting the discharge lamp can be achieved.
- the spark gap according to the invention is an air gap, which is therefore freely accessible to the outside. A heat dissipation through air circulation or convection is therefore possible.
- the air gap also has the advantage that no special gas mixtures and accordingly no gas-tight sheathing are required. Accordingly simple and inexpensive is the production of the switching arrangement according
- the electrodes of the switching arrangement according to the invention may expediently have a bore concentric with the cylinder axis for a fastening bolt.
- the electrodes are attached with their underside to a support plate of electrically insulating material.
- a support plate of electrically insulating material For this purpose, the previously mentioned fastening bolts can be used.
- a particularly stable and robust arrangement results if, in addition, a cover plate made of the electrically insulating material is provided, to which the electrodes are fastened with their upper side.
- Suitable materials for the carrier plate or the cover plate are the known and inexpensive plastic materials (for example the fiber-reinforced circuit board material FR4) from which printed circuit boards usually consist.
- the cylinder axes of the electrodes are thus arranged perpendicular to the carrier plate or to the cover plate.
- the attachment of the electrodes at the top and at the bottom ensures that the parallelism between the cylinder axes of the electrodes and thus the constant width of the discharge column connected in series is maintained, even if external forces act on the arrangement. Such forces would cause the overall arrangement consisting of three or more electrodes to be displaced in the manner of a parallelogram.
- the parallelism between the cylinder axes is maintained and the width of the discharge column changes only slightly overall.
- the switching arrangement according to the invention is particularly reliable for these reasons, even under heavy mechanical stress, as often occur in hot ignition of high-pressure discharge lamps.
- the carrier plate and / or the cover plate in the switching arrangement according to the invention may have transverse to the spark gap extending slots. Through these slots is avoided that form conductive paths (creepage distances) on the support plate or the cover plate. This would inevitably lead to a failure of working with the switching device according to the invention ignition devices. Furthermore, the slots cause improved cooling of the air gap.
- the impact capacitor is connected to the carrier plate, wherein on the carrier plate, a conductor for connecting an electrode of the surge capacitor is provided with an electrode of the spark gap.
- the electrodes of the spark gap in the switching arrangement according to the invention in the transition region between the cylinder jacket and the end faces of the electrodes have rounded edges. As a result, excessive electric field strengths are avoided in the region of the edges, which would lead to a difficult to control ignition behavior of the spark gap.
- a discharge lamp 1 When in the Fig. 1 1, a discharge lamp 1 is connected to secondary windings 2 of a superposition transformer 3. About the secondary windings 2 and an intermediate iron choke 4, the discharge lamp 1 is connected to power terminals 5.
- an ignitor which consists of an ignition circuit 6 and a high voltage generator 7.
- the ignition circuit 6 comprises the primary winding 8 of the superposition transformer 3, a surge capacitor 9 and a spark gap 10 as an automatically switching switching element.
- the surge capacitor 9 is charged by the high voltage generator 7.
- the surge capacitor 9 and the primary winding 8 of the superimposing transformer 3 form a resonant in the MHz range series resonant circuit. When the surge capacitor 9 is charged to a certain high voltage value, so ignites the spark gap 10.
- the ignition circuit 6 is closed, and there is a high frequency oscillation in the primary winding 8 of the superposition transformer 3.
- this vibration is transformed up, so on the terminals of the discharge lamp 1 symmetrically applied ignition pulses of opposite polarity.
- the secondary windings 2 of the superimposing transformer 3 have opposing windings.
- the surge capacitor 9 is charged continuously. With intervals of less than a millisecond, the spark gap 10 passes through, so that the discharge lamp 1 is supplied with ignition pulses with the appropriate frequency.
- the Spark gap 10 is formed according to the invention as a multi-stage air gap.
- the spark gap 10 in the embodiment of four cylindrical electrodes 11, wherein the cylinder axes 12 are aligned side by side and parallel to each other, in such a way that perpendicular to the cylinder axes 12, a multi-stage air gap is formed.
- three line-shaped discharge gaps 13 are formed in the illustrated embodiment.
- the geometry of the discharge gap 13 decisively determines the ignition behavior of the spark gap, in particular the turn-on voltage, the turn-off voltage and the deionization time.
- these have concentric bores 14 for not shown in the figure fastening bolts or spigots.
- the electrodes 11 are fixed with its underside to a support plate 15 and with its top on a cover plate 16.
- the carrier plate 15 and the cover plate 16 are made of electrically insulating printed circuit board material.
- the Fig. 3 shows the support plate 15 and the cover plate 16 in plan view.
- the fastening bolts for the electrodes 11 are fixed to the support plate 15 and to the cover plate 16.
- On the support plate 15 also has a bore 18 for fixing an electrode of the surge capacitor 9 is provided.
- the overall arrangement of spark gap 10 and surge capacitor 9 again shows the Fig. 2 ,
- a conductor 19 is provided for connecting an electrode 20 of the surge capacitor 9 to an electrode 11 of the spark gap 10.
- the electrodes in the transition region 21 between the cylinder jacket and the end faces have circumferentially rounded edges.
- FIGS. 2 and 3 also show that the carrier plate 15 and the cover plate 16 transverse to the spark gap extending slots 22 have.
- These slots can be mounted by simple milling on the support plate 15 and on the cover plate 16.
- the width and length of the slots 22 is selected so that possible creepage distances on the surface of the support plate 15 and the cover plate 16 are sufficiently increased.
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Claims (7)
- Agencement de circuit pour un dispositif d'allumage d'une lampe à décharge (1), comportant une distance de décharge formée par trois ou plus d'électrodes (11), laquelle est montée en série avec l'enroulement primaire (8) d'un transformateur de conversion (3) et avec un condensateur de surtension (9), caractérisé en ce que les électrodes (11) sont réalisées avec une forme cylindrique, les axes (12) des cylindres étant disposés les uns à côté des autres et étant orientés parallèlement entre eux, à savoir de telle sorte qu'il se forme une distance de décharge à plusieurs niveaux, perpendiculairement aux axes (12) des cylindres.
- Agencement de circuit selon la revendication 1, caractérisé en ce que les électrodes (11) comportent chacune une forure (14), concentrique à l'axe (12) du cylindre et destinée à recevoir un boulon de fixation.
- Agencement de circuit selon la revendication 1 ou 2, caractérisé par une plaque de support (15) en matériau électro-isolant, sur laquelle les électrodes (11) sont fixées avec leur face inférieure.
- Agencement de circuit selon la revendication 3, caractérisé par une plaque de recouvrement (16), réalisée dans le matériau électro-isolant, sur laquelle les électrodes (11) sont fixées avec leur face supérieure.
- Agencement de circuit selon la revendication 3 ou 4, caractérisé en ce que la plaque de support (15) et/ou la plaque de recouvrement (16) comportent des fentes (22) orientées transversalement à la distance de décharge.
- Agencement de circuit selon l'une quelconque des revendications 3 à 5, caractérisé en ce que le condensateur de surtension (9) est relié à la plaque de support (15), une piste conductrice (19) étant prévue sur la plaque de support (15) pour relier une électrode (20) du condensateur de surtension (9) à une électrode (11) de la distance de décharge.
- Agencement de circuit selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les électrodes (11) ont des arêtes arrondies dans la zone de transition entre la paroi latérale et les faces frontales.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410060471 DE102004060471A1 (de) | 2004-12-16 | 2004-12-16 | Zündgerät für eine Hochdruckentladungslampe |
DE200520000542 DE202005000542U1 (de) | 2005-01-13 | 2005-01-13 | Schaltanordnung für ein Zündgerät einer Entladungslampe |
PCT/EP2005/013566 WO2006063845A2 (fr) | 2004-12-16 | 2005-12-16 | Agencement de circuit pour une unité de démarrage d'une lampe à décharge |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1829432A2 EP1829432A2 (fr) | 2007-09-05 |
EP1829432B1 true EP1829432B1 (fr) | 2010-09-22 |
Family
ID=36588241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05826541A Not-in-force EP1829432B1 (fr) | 2004-12-16 | 2005-12-16 | Agencement de circuit pour une unite de demarrage d'une lampe a decharge |
Country Status (6)
Country | Link |
---|---|
US (1) | US7781981B2 (fr) |
EP (1) | EP1829432B1 (fr) |
JP (1) | JP5047804B2 (fr) |
AT (1) | ATE482606T1 (fr) |
DE (1) | DE502005010300D1 (fr) |
WO (1) | WO2006063845A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110797753A (zh) * | 2018-08-03 | 2020-02-14 | 菲尼克斯电气公司 | 堆叠式火花隙的组件和用于紧固与接触堆叠式火花隙的装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8076865B2 (en) * | 2008-05-23 | 2011-12-13 | Osram Sylvania Inc. | Ignition for ceramic metal halide high frequency ballasts |
ITPD20080375A1 (it) * | 2008-12-22 | 2010-06-23 | Dossena S N C Di Barbati Agostino & C | Alimentatore elettronico per lampade a scarica, impianto di illuminazione e metodo di accensione di lampade a scarica |
CN103987148A (zh) * | 2013-02-08 | 2014-08-13 | 东林科技股份有限公司 | 可调光的发光二极管照明***及其驱动装置与驱动方法 |
CN104582057A (zh) * | 2013-10-11 | 2015-04-29 | 东林科技股份有限公司 | 多灯具的控制方法 |
JP6860871B2 (ja) * | 2015-12-07 | 2021-04-21 | ナノブリッジ・セミコンダクター株式会社 | 抵抗変化素子、半導体装置、及び半導体装置の製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE319155C (de) * | 1915-05-22 | 1920-02-28 | Bruno Rosenbaum Dipl Ing | Offene Funkenstrecke, insbesondere fuer die Zwecke der drahtlosen Telegraphie |
DE850012C (de) * | 1944-05-11 | 1952-09-22 | Erwin Dr-Ing Marx | Hochfrequenzfunkenstrecke |
DE8616255U1 (de) * | 1986-06-18 | 1988-01-28 | Siemens AG, 1000 Berlin und 8000 München | Mehrfach-Gasentladungsableiter |
US4890041A (en) * | 1988-03-10 | 1989-12-26 | Hubbell Incorporated | High wattage HID lamp circuit |
CA1318345C (fr) * | 1988-04-13 | 1993-05-25 | David J. Cockram | Dispositif d'allumage pour lampe a decharge |
JPH0513185A (ja) * | 1990-09-07 | 1993-01-22 | Matsushita Electric Ind Co Ltd | 放電灯点灯装置 |
JP2587720B2 (ja) * | 1990-10-19 | 1997-03-05 | 株式会社小糸製作所 | 車輌用放電灯の点灯回路 |
US6114797A (en) * | 1997-05-27 | 2000-09-05 | Face International Corp. | Ignition circuit with piezoelectric transformer |
US6031339A (en) * | 1999-01-03 | 2000-02-29 | Hewlett-Packard Company | Efficient electronic ballast for fluorescent tubes |
JP2001126895A (ja) * | 1999-10-26 | 2001-05-11 | Matsushita Electric Works Ltd | 電源装置 |
JP4087292B2 (ja) * | 2003-05-26 | 2008-05-21 | 三菱電機株式会社 | 高輝度放電ランプ点灯装置およびその点灯方法 |
-
2005
- 2005-12-16 DE DE502005010300T patent/DE502005010300D1/de active Active
- 2005-12-16 AT AT05826541T patent/ATE482606T1/de not_active IP Right Cessation
- 2005-12-16 EP EP05826541A patent/EP1829432B1/fr not_active Not-in-force
- 2005-12-16 WO PCT/EP2005/013566 patent/WO2006063845A2/fr active Application Filing
- 2005-12-16 US US11/793,249 patent/US7781981B2/en not_active Expired - Fee Related
- 2005-12-16 JP JP2007545962A patent/JP5047804B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110797753A (zh) * | 2018-08-03 | 2020-02-14 | 菲尼克斯电气公司 | 堆叠式火花隙的组件和用于紧固与接触堆叠式火花隙的装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2006063845A2 (fr) | 2006-06-22 |
DE502005010300D1 (de) | 2010-11-04 |
EP1829432A2 (fr) | 2007-09-05 |
WO2006063845A3 (fr) | 2007-03-22 |
JP5047804B2 (ja) | 2012-10-10 |
ATE482606T1 (de) | 2010-10-15 |
US20080001548A1 (en) | 2008-01-03 |
US7781981B2 (en) | 2010-08-24 |
JP2008524783A (ja) | 2008-07-10 |
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