WO2008148690A1 - Hochdruckentladungslampe mit verbesserter zündvorrichtung sowie zündvorrichtung für eine gasentladungslampe - Google Patents
Hochdruckentladungslampe mit verbesserter zündvorrichtung sowie zündvorrichtung für eine gasentladungslampe Download PDFInfo
- Publication number
- WO2008148690A1 WO2008148690A1 PCT/EP2008/056591 EP2008056591W WO2008148690A1 WO 2008148690 A1 WO2008148690 A1 WO 2008148690A1 EP 2008056591 W EP2008056591 W EP 2008056591W WO 2008148690 A1 WO2008148690 A1 WO 2008148690A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lamp
- ignition device
- discharge lamp
- pressure discharge
- ignition
- Prior art date
Links
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
- 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
Definitions
- the invention is based on a high-pressure discharge lamp according to the preamble of claim 1. Such lamps are in particular high-pressure discharge lamps for general lighting or for photo-optical purposes.
- the invention further relates to an ignition device with an improved method of operation, which can be used in particular for such a lamp.
- a spiral pulse generator 1 consists of a winding of two conductive layers, between which an insulating material comes to rest.
- the insulating material may be a high dielectric constant material or a high permeability material or a mixture of both materials.
- FIG. 2a shows the representation of a schematic structure of a spiral pulse generator 1.
- the conductive layer A is contacted at the end points A1 and A2.
- the parallel layer B is contacted only at an end point Bl.
- the terminal Al is connected to the voltage Uo, as provided by the electronic control gear.
- the connection A2 is the output and connected to the gas discharge lamp.
- the terminal Bl of the conductive layer B is connected via a charging resistor 7 to the ground terminal.
- the two conductive layers with the intervening dielectric form a capacitor which is charged via the terminals Al and Bl to the open circuit voltage Uo.
- the connections Al and Bl are connected to a fast switch 3, such as a spark gap.
- the switch will turn on at a certain threshold voltage that is slightly below Uo.
- a voltage pulse forms on the spiral pulse generator, which runs from the point of the switch like a wave along the spiral pulse generator to the point A2, where it is reflected and runs back again.
- a voltage UA builds up at the point A2, which voltage can be expressed by 2 xnx Uo x ⁇ , where ⁇ is the efficiency of the spiral pulse generator.
- the spiral pulse generator now used is in particular a so-called LTCC component.
- This material is a special ceramic that can be made temperature resistant to 500 0 C or 600 0 C.
- LTCC has already been used in connection with lamps, see US 2003/0001519 and US Pat. No. B 6,853,151. However, it has been used for quite different purposes in lamps that are practically barely exposed to temperature, with typical temperatures below 100 ° C.
- the particular value of the high temperature stability of LTCC in connection with the ignition of high pressure discharge lamps, especially metal halide lamps with ignition problems, has not been recognized so far.
- the object of the present invention is therefore to provide a high-pressure discharge lamp with an integrated ignition device which, after a sudden extinguishing of the lamp during a period of time which is typically required for cooling the burner, stops all ignition attempts.
- the charging resistor 7, which is required for charging the integrated spiral pulse generator 1, is partly or completely replaced by a cold conductor 73, which heats up with the lamp 55, and in the hot state, the resistance of PTC thermistor 73 is dimensioned such that the threshold voltage of the threshold switch 3 is not reached. Thus, no high-voltage pulses are generated more, and reliably prevent ignition attempts at hot lamp 55.
- FIG. 1 Basic structure of a gas discharge lamp containing an ignition arrangement with a spiral pulse generator in the outer bulb according to the prior art.
- FIG. 2a Basic structure of a spiral pulse generator.
- FIG. 2b Simplified illustration of a spiral pulse generator.
- FIG. 3 Construction according to the invention of a gas discharge lamp containing an ignition arrangement with a spiral pulse generator in the outer bulb.
- Fig. 4 Waveforms of relevant voltages for a hot and a cold lamp.
- Fig. 5 Typical resistance behavior of a PTC thermistor over temperature.
- FIG. 3 shows the basic construction of a high-pressure discharge lamp 55 according to the invention with an igniter 137 integrated in the outer bulb 51, which comprises a spiral pulse generator 1, a threshold value switch 3 and a charging resistor 7.
- the charging resistor 7 consists here wholly or partly of a PTC thermistor 73, which, depending on the design, a resistor 71 is connected in series.
- the PTC thermistor 71 is arranged in the lamp envelope so that it is heated by the burner 5 of the high-pressure discharge lamp 55 via radiation exchange or convection.
- the lamp voltage U 0 is present at the lamp contacts 13, 15.
- the spiral pulse generator is charged via the charging resistor 7 with this voltage until the voltage at the spiral pulse generator exceeds the threshold voltage of the threshold switch 3. Due to the fact that the PTC thermistor is good conductive, only little voltage drops at the charging resistor and the spiral pulse generator is charged quickly.
- the threshold value switch is preferably a spark gap. As soon as the spark gap breaks through, an ignition pulse is generated and the process begins again.
- the resistance of the PTC thermistor 73 drops to a value that allows an ignition again.
- the spiral pulse generator 1 is slowly recharged to a voltage which is above the breakdown voltage of the spark gap 3, and it is again an ignition Due to the fact that the thermistor 73 is in direct radiation exchange with this and the surrounding outer bulb 51 even after the burner 5 has been extinguished, it cools down with approximately the same time constant as the outer bulb. As a result, an ignition is really only possible again when the lamp has cooled sufficiently.
- Signal 41 shows the open circuit voltage applied to the lamp.
- Signal 43 is the voltage waveform on the spiral pulse generator when the lamp is cold. The voltage 43 rises up to the breakdown voltage 47 of the spark gap, in order then to rapidly become zero again due to the short circuit. This is repeated three times within a half-wave.
- Signal 45 represents the voltage at the spiral pulse generator when the spark gap is hot. The voltage increases much more slowly due to the high resistance and does not reach the breakdown voltage of the spark gap. This will not ignite when the lamp is hot
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200880018928A CN101681794A (zh) | 2007-06-06 | 2008-05-29 | 具有改进的点燃装置的高压放电灯以及用于气体放电灯的点燃装置 |
US12/663,004 US20100213843A1 (en) | 2007-06-06 | 2008-05-29 | High-pressure discharge lamp having an improved ignition device, and ignition device for a gas discharge lamp |
JP2010510748A JP2010529603A (ja) | 2007-06-06 | 2008-05-29 | 改善された点弧装置を備える高圧放電ランプ、ならびにガス放電ランプ用点弧装置 |
EP08760183A EP2153458A1 (de) | 2007-06-06 | 2008-05-29 | Hochdruckentladungslampe mit verbesserter zündvorrichtung sowie zündvorrichtung für eine gasentladungslampe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007026317.3 | 2007-06-06 | ||
DE102007026317A DE102007026317A1 (de) | 2007-06-06 | 2007-06-06 | Hochdruckentladungslampe mit verbesserter Zündvorrichtung sowie Zündvorrichtung für eine Gasentladungslampe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008148690A1 true WO2008148690A1 (de) | 2008-12-11 |
Family
ID=39712246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/056591 WO2008148690A1 (de) | 2007-06-06 | 2008-05-29 | Hochdruckentladungslampe mit verbesserter zündvorrichtung sowie zündvorrichtung für eine gasentladungslampe |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100213843A1 (de) |
EP (1) | EP2153458A1 (de) |
JP (1) | JP2010529603A (de) |
CN (1) | CN101681794A (de) |
DE (1) | DE102007026317A1 (de) |
WO (1) | WO2008148690A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1596161A (en) * | 1924-10-21 | 1926-08-17 | Holophane Glass Company | Luminaire |
US4379982A (en) * | 1980-10-02 | 1983-04-12 | Gte Laboratories Incorporated | Low energy starting aid for high intensity discharge lamps |
US4629945A (en) * | 1984-12-27 | 1986-12-16 | Gte Laboratories Incorporated | Method and apparatus for starting low wattage high intensity discharge lamps |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1087933A (en) | 1963-10-10 | 1967-10-18 | Atomic Energy Authority Uk | Improvements in or relating to electrical pulse generators |
US4325004A (en) | 1980-10-02 | 1982-04-13 | Gte Laboratories Incorporated | Method and apparatus for starting high intensity discharge lamps |
US4353012A (en) | 1981-04-24 | 1982-10-05 | Gte Laboratories Incorporated | Pulse injection starting for high intensity discharge metal halide lamps |
US4678968A (en) * | 1985-02-15 | 1987-07-07 | Gte Products Corporation | High intensity discharge lamp starting and operating apparatus |
US4678960A (en) * | 1985-08-01 | 1987-07-07 | General Electric Company | Metallic halide electric discharge lamps |
US4713587A (en) * | 1987-01-05 | 1987-12-15 | Gte Laboratories Incorporated | Multipulse starting aid for high-intensity discharge lamps |
US5185557A (en) * | 1991-06-12 | 1993-02-09 | U.S. Philips Corporation | High-pressure discharge lamp |
US5289084A (en) * | 1992-06-26 | 1994-02-22 | Hubbell Incorporated | Lamp arrangement employing a resonant circuit formed from an autotransformer and a capacitor where the capacitor is switched out of the resonant circuit and into a power factor correcting circuit when the ignition of the lamp is sensed |
US6724155B1 (en) * | 1995-11-02 | 2004-04-20 | Hubbell Incorporated | Lamp ignition circuit for lamp driven voltage transformation and ballasting system |
US5825139A (en) * | 1995-11-02 | 1998-10-20 | Hubbell Incorporated | Lamp driven voltage transformation and ballasting system |
WO2002097842A2 (en) | 2001-05-29 | 2002-12-05 | Fusion Lighting, Inc. | Integrated electrodeless lamp and solid state oscillators |
US6853151B2 (en) | 2002-11-19 | 2005-02-08 | Denovo Lighting, Llc | LED retrofit lamp |
EP1852001A1 (de) * | 2005-02-10 | 2007-11-07 | Koninklijke Philips Electronics N.V. | Steuersystem und verfahren zur zündabschaltung |
-
2007
- 2007-06-06 DE DE102007026317A patent/DE102007026317A1/de not_active Withdrawn
-
2008
- 2008-05-29 JP JP2010510748A patent/JP2010529603A/ja active Pending
- 2008-05-29 WO PCT/EP2008/056591 patent/WO2008148690A1/de active Application Filing
- 2008-05-29 US US12/663,004 patent/US20100213843A1/en not_active Abandoned
- 2008-05-29 EP EP08760183A patent/EP2153458A1/de not_active Withdrawn
- 2008-05-29 CN CN200880018928A patent/CN101681794A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1596161A (en) * | 1924-10-21 | 1926-08-17 | Holophane Glass Company | Luminaire |
US4379982A (en) * | 1980-10-02 | 1983-04-12 | Gte Laboratories Incorporated | Low energy starting aid for high intensity discharge lamps |
US4629945A (en) * | 1984-12-27 | 1986-12-16 | Gte Laboratories Incorporated | Method and apparatus for starting low wattage high intensity discharge lamps |
Also Published As
Publication number | Publication date |
---|---|
CN101681794A (zh) | 2010-03-24 |
DE102007026317A1 (de) | 2008-12-11 |
JP2010529603A (ja) | 2010-08-26 |
US20100213843A1 (en) | 2010-08-26 |
EP2153458A1 (de) | 2010-02-17 |
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