EP1033906B1 - Einseitig gesockelte Hochdruckentladungslampe mit im Sockel integrierter Zündvorrichtung - Google Patents

Einseitig gesockelte Hochdruckentladungslampe mit im Sockel integrierter Zündvorrichtung Download PDF

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Publication number
EP1033906B1
EP1033906B1 EP00103609A EP00103609A EP1033906B1 EP 1033906 B1 EP1033906 B1 EP 1033906B1 EP 00103609 A EP00103609 A EP 00103609A EP 00103609 A EP00103609 A EP 00103609A EP 1033906 B1 EP1033906 B1 EP 1033906B1
Authority
EP
European Patent Office
Prior art keywords
base
discharge lamp
pressure discharge
bidirectional
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.)
Expired - Lifetime
Application number
EP00103609A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1033906A2 (de
EP1033906A3 (de
Inventor
Günther Hirschmann
Arnulf Rupp
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
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Publication of EP1033906A2 publication Critical patent/EP1033906A2/de
Publication of EP1033906A3 publication Critical patent/EP1033906A3/de
Application granted granted Critical
Publication of EP1033906B1 publication Critical patent/EP1033906B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/56—One or more circuit elements structurally associated with the lamp
    • 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

Definitions

  • the invention relates to a high-pressure discharge lamp based on one side the preamble of claim 1.
  • Such a high-pressure discharge lamp is, for example, in the international Patent application with publication number WO 98/53647 disclosed.
  • This Laid-open specification describes a high-pressure discharge lamp with a base on one side with a pulse ignition device arranged in the base. Additionally is in the base at least one radio interference suppression choke housed with a power supply a gas discharge electrode of the high-pressure discharge lamp is connected.
  • a this power supply is as from the base distant end of the discharge vessel to Recirculated current return line formed. This current return line runs outside the lamp vessels and has no electrical insulation in places on.
  • the high voltage required to ignite the gas discharge in the discharge vessel the high-pressure discharge lamp, for safety reasons, via the Power supply close to the base, completely from the lamp vessels or from the base is enclosed.
  • the gas discharge electrode remote from the base is during of lamp operation connected to the ground potential via the current return line, thus on the only partially electrically insulated current return line during lamp operation no high electrical voltages occur.
  • the radio interference is suppressed by the lamp current serve high electrical voltages during the ignition phase.
  • the inadequately electrically isolated current return during the ignition phase despite its connection to ground potential, with high-voltage pulses of up to 6 kV.
  • the published patent application EP 0 377 022 A1 describes a device for operation a discharge lamp with an ignition device and one parallel to the ignition device switched pair of oppositely arranged zener diodes which are used for Serve voltage limitation.
  • the patent US 4,677,348 discloses an ignition device for a gas discharge lamp with a threshold switch that protects against overvoltages is connected to the input terminals.
  • the published patent application EP 0 595 333 A1 describes an ignition circuit for a High-pressure discharge lamp with a threshold switch designed as a spark gap, which is connected to the input connections via a choke and for overvoltage protection of capacitors arranged in the circuit.
  • the high-pressure discharge lamp according to the invention which has a base on one side has one Base with at least two electrical connections for power supply to the High-pressure discharge lamp and a discharge vessel sealed on both sides, which has a close-to-the-base and a base-close end.
  • the discharge vessel is an ionizable filling for generating a light-emitting gas discharge locked in.
  • the high-pressure discharge lamp according to the invention has at least two gas discharge electrodes arranged inside the discharge vessel, wherein at least a first gas discharge electrode over one current return line led out at the base end and via the at least a radio interference suppression choke with a first electrical connection of the high-pressure discharge lamp is connected, and wherein at least a second gas discharge electrode by means of a power supply lead out of the end near the base a second electrical connection of the high-pressure discharge lamp is connected.
  • the current return line is via a bidirectional one arranged in the base Threshold switch with the second electrical connection of the High pressure discharge lamp connected and the first electrical connection is over the at least one radio interference suppression choke and via the bidirectional threshold switch connected to the second electrical connection of the high-pressure discharge lamp.
  • the bidirectional threshold switch is advantageously located in the thermal contact with a heat sink.
  • the voltage drop is caused by the aforementioned features according to the invention the current return is limited to a maximum of 1 kV during the ignition phase, so that electrical arcing from the return conductor to electrical arranged in the area conductive components, especially on the metallized reflector surface, avoided and also damage due to voltage overload of the high-pressure discharge lamp connected control gear is prevented.
  • a bidirectional Threshold switches are advantageously a varistor or a Bidirectional diode circuit used as these components for high voltages and high currents are particularly suitable. The breakdown voltage is this Components exceeded, so they can even release the electrical energy released comparatively high short-circuit currents, convert to heat.
  • the bidirectional Diode circuit is advantageously designed such that it is an equivalent circuit diagram has two Zener diodes connected in series in opposite directions. It is suitable particularly good for limiting high-frequency voltages or for limiting Voltage pulses of both negative and positive polarity.
  • this diode circuit is from SGS Thomson Bi-directional diode array sold under the brand name Transil TM diode.
  • the bidirectional threshold switch is advantageously dimensioned such that that it has a breakdown voltage of at least 600 V and a clamping voltage tolerates at least 800 V without being damaged.
  • High-pressure discharge lamp is a one-sided base Metal halide high pressure discharge lamp with an electrical power consumption of approximately 35 W, which is used in a motor vehicle headlight is provided.
  • the high-pressure discharge lamp LP has a base 10 and a Discharge vessel 11 closed on two sides with a base near 11a and one end remote from base 11b.
  • the discharge vessel 11 is of a glass one, on the discharge vessel attached outer bulb 12 surrounded.
  • the from the discharge vessel 11 and the outer piston 12 existing unit is in a receiving device of the base 10 anchored.
  • the gas discharge electrode E1 remote from the base is over one led out of the discharge vessel end 11b remote from the base, to the base 10 returned current return line 13 with a first arranged in the base 10 Radio interference suppression choke L1 or L3 connected.
  • the one running along the outer bulb 12 Portion of the current return line 13 is surrounded by ceramic insulation 14.
  • the gas discharge electrode E2 close to the base is connected to a base near the base Discharge vessel end 11a led out power supply 15, which is completely inside of the base 10 or within the lamp vessels 11, 12, with the secondary winding N2 or N4 of an ignition transformer TR or TR 'also one arranged in the base 10 pulse ignition device Z or Z 'connected.
  • FIG. 1 shows the one arranged in the base 10 of the high-pressure discharge lamp LP the pulse ignition device Z and the radio interference suppression chokes L1, L2 and the bidirectional Threshold switch D existing ignition circuit arrangement according to of the first embodiment.
  • the pulse ignition device Z comprises an ignition transformer TR with a primary winding N1 and a secondary winding N2 as well the ignition capacitor C1 and the spark gap FS.
  • the gas discharge electrode remote from the base E1 is via the current return line 13 and via the first radio interference suppression choke L1 connected to a first electrical connection j1 of the base 10.
  • the base-like gas discharge electrode E1 via the current return line 13 and via the bidirectional threshold switch D with a second electrical Connection j2 of the base 10 connected.
  • the first electrical connection is j1 via the first radio interference suppression choke L1 and via the bidirectional threshold switch D connected to the second electrical connection j2.
  • the near the base Gas discharge electrode E2 is via the power supply 15, via the second radio interference suppression choke L2 and via the secondary winding N2 of the transformer TR with the second electrical connection j2 of the base 10 connected.
  • a third electric Terminal j3 of the base 10 is via the ignition capacitor C1 to the second electrical Connection j2 of the base 10 connected.
  • the second j2 and the third electrical Connection j3 serve as a voltage input for the pulse ignition device Z.
  • the three electrical connections j1, j2, j3 (not shown in FIG. 3) of the base 10 are included in the assembly of the high-pressure discharge lamp LP in the motor vehicle corresponding connections of an operating device arranged in the motor vehicle connected, the supply voltage for the ignition device at the connections j2, j3 Z and at the connections j1, j2 the operating voltage for the high-pressure discharge lamp LP generated.
  • the connection j 1 is also connected to the circuit Ground potential of the control gear connected.
  • the ignition capacitor C1 For igniting the gas discharge in the discharge vessel 11 of the high-pressure discharge lamp LP becomes the ignition capacitor C1 through its connection to the voltage input j2, j3 charged. Reaches the voltage drop across the ignition capacitor C 1 the breakdown voltage of the spark gap FS, the ignition capacitor discharges C1 intermittently via the primary winding N1 of the transformer TR. In the Secondary winding N2 of the transformer TR thereby become high-voltage pulses of up to 25 kV with which the gas discharge electrode close to the base is induced E2 is applied. After ignition of the gas discharge flows through the High-pressure discharge lamp, that is, over the discharge path E1-E2, and through the two radio interference suppression chokes L1, L2 and a lamp current via connections j1, j2.
  • the two radio interference suppression chokes L1, L2 are used for radio interference suppression Discharge current through the lamp.
  • the ignition phase are also in the two radio interference suppression chokes L1, L2 induced voltage pulses of up to 6 kV. As a result, occur only incompletely insulated by the ceramic tube 14 Current return line 13 correspondingly high voltage pulses during the ignition phase on, although the current return line 13 via the connection j 1 with the circuit-internal ground potential is connected.
  • the bidirectional threshold switch D connected in series to the interference suppression choke L1, so that at the threshold switch D the sum of that at the connections j1, j2 provided operating voltage and the induction voltage of the radio interference suppression choke L1 is present. If the sum of these voltages exceeds the breakdown voltage of the threshold switch D, the threshold switch D electrically conductive. Then the electrical stored in the radio interference suppression choke L1 Energy dissipated via the bidirectional threshold switch D.
  • the breakdown voltage of the bidirectional threshold switch D is at least 550 V. It is also dimensioned so that the clamping voltage between 550 V and a maximum of 740 V. At voltages above the breakdown voltage an electrical current flows through the threshold switch D, the leads to the heating of the threshold switch D. The threshold switch D is therefore in thermal contact with a heat sink.
  • a bidirectional Threshold switch D is one of the company SGS Thomson under the Bi-directional Transil TM diode distributed diode array used. This bidirectional diode circuit D has two opposite directions as an equivalent circuit diagram Zener diodes connected in series.
  • the amplitude of the interference suppression choke L1 generated high-frequency high-voltage pulses during the ignition phase which the current return line 13 is acted upon by the bidirectional Diode circuit D limited to a maximum value of 1 kV. Electric flashovers from the current return line 13 to the headlight reflector, in which the high-pressure discharge lamp is therefore not to be feared.
  • the one arranged in the base 10 of the high-pressure discharge lamp LP is made of the pulse ignition device Z 'and the radio interference suppression choke L3 and the bidirectional Threshold switch D 'existing ignition circuit arrangement according to the shown second embodiment.
  • the pulse ignition device Z ' comprises an ignition transformer TR 'with a primary winding N3 and a secondary winding N4 and the ignition capacitor C2, one parallel to the discharge path E1-E2 of the lamp switched capacitor C4 and the spark gap FS '.
  • the most distant Gas discharge electrode E1 is via the current return line 13 and via the Radio interference suppression choke L3 with a first electrical connection j4 of the base 10 connected.
  • the gas discharge electrode E1 remote from the base is via the current return line 13 and via the bidirectional threshold switch D 'with a second electrical connection-j5 of the base 10 connected.
  • the first electrical Connection j4 is via the radio interference suppression choke L3 and via the bidirectional Threshold switch D 'connected to the second electrical connection j5.
  • Parallel A capacitor C3 is connected to the connections j4 and j5, which measures the voltage rise dU / dt limited between these two connections j4, j5.
  • the near the base Gas discharge electrode E2 is via the power supply 15 and via the secondary winding N4 of the transformer TR 'with the second electrical connection j5 of the base 10 connected.
  • a third electrical connection j6 of the base 10 is via the ignition capacitor C2 to the second electrical connection j5 of the base 10 connected.
  • the primary winding N4 of the ignition transformer TR 'and the Spark gap FS 'existing series circuit is parallel to the ignition capacitor C2 arranged.
  • the second j5 and the third electrical connection j6 serve as a voltage input for the pulse ignition device Z '.
  • the three electrical connections j4, j5, j6 (not shown in FIG.
  • the bidirectional threshold switch D ' is in Series connected to the radio interference suppression choke L3, so that at the threshold switch D ' the sum of the operating voltage provided at the connections j4, j5 and the induction voltage of the radio interference suppression choke L3 is present. Exceeds the sum these voltages the breakdown voltage of the threshold switch D ', so the threshold switch D 'becomes electrically conductive. Then the one in the radio interference suppression choke L3 stored electrical energy via the bidirectional threshold switch D 'dismantled.
  • the breakdown voltage of the bidirectional threshold switch D ' is at least 550 V. It is also dimensioned such that the clamping voltage is between 550 V and a maximum of 740 V.
  • bidirectional threshold switch D ' is one from SGS Thomson Diode arrangement sold under the name of bidirectional Transil TM diode used.
  • This bidirectional diode circuit D ' has two as an equivalent circuit diagram Zener diodes connected in opposite directions in series.
  • the high frequency high voltage pulses, that occur on the current return line 13 during the ignition phase and the induction voltage pulses occurring at the radio interference suppression choke L3 are limited to a maximum of ⁇ 1 kV.
  • Capacitor C3 limits the voltage rise dU / dt of these high voltage pulses.
  • bidirectional threshold switches D, D ' can also be used a varistor, a sidac or a thyristor can be used.
  • bidirectional threshold switch D, D ' also one of at least two in opposite directions polarized, series-connected zener diodes existing bidirectional Diode circuit can be used.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP00103609A 1999-03-04 2000-02-21 Einseitig gesockelte Hochdruckentladungslampe mit im Sockel integrierter Zündvorrichtung Expired - Lifetime EP1033906B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19909529 1999-03-04
DE19909529A DE19909529A1 (de) 1999-03-04 1999-03-04 Einseitig gesockelte Hochdruckentladungslampe mit im Sockel integrierter Zündvorrichtung

Publications (3)

Publication Number Publication Date
EP1033906A2 EP1033906A2 (de) 2000-09-06
EP1033906A3 EP1033906A3 (de) 2001-09-19
EP1033906B1 true EP1033906B1 (de) 2004-04-14

Family

ID=7899707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00103609A Expired - Lifetime EP1033906B1 (de) 1999-03-04 2000-02-21 Einseitig gesockelte Hochdruckentladungslampe mit im Sockel integrierter Zündvorrichtung

Country Status (9)

Country Link
US (1) US6191538B1 (hu)
EP (1) EP1033906B1 (hu)
JP (1) JP2000286081A (hu)
KR (1) KR100615744B1 (hu)
AT (1) ATE264603T1 (hu)
CA (1) CA2299864C (hu)
DE (2) DE19909529A1 (hu)
ES (1) ES2219214T3 (hu)
HU (1) HUP0000994A3 (hu)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005003632U1 (de) * 2005-03-03 2006-07-13 Bag Electronics Gmbh Zündschaltungsanordnung mit erhöhter Ausfallsicherheit

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6536918B1 (en) * 2000-08-23 2003-03-25 General Electric Company Lighting system for generating pre-determined beam-pattern
KR100570483B1 (ko) * 2001-08-31 2006-04-13 하리슨 도시바 라이팅 가부시키가이샤 고압 방전 램프 점등 장치, 고압 방전 램프 장치 및 투광램프 장치
DE60320389T2 (de) * 2002-03-13 2009-05-14 Koninklijke Philips Electronics N.V. Elektrische schaltung zum zünden einer entladungslampe, bauteilmodul und lampe mit solch einer elektrischen schaltung
US6999492B2 (en) * 2002-11-20 2006-02-14 Lambda Physik Ag Reduced-maintenance excimer laser with oil-free solid state pulser
DE102005060797A1 (de) * 2005-12-16 2007-06-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vorrichtung zur Verbesserung der elektromagnetischen Verträglichkeit einer Hochdruckentladungslampe
DE102008046163A1 (de) * 2008-09-06 2010-03-11 Hella Kgaa Hueck & Co. Zündgerät mit Filter für eine Hochdruckgasentladungslampe
KR20130138215A (ko) * 2010-09-22 2013-12-18 오스람 게엠베하 고압 방전 램프를 시동시키기 위한 방법
CN104769691A (zh) 2012-11-02 2015-07-08 罗姆股份有限公司 片状电容器、电路组件以及电子设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677348A (en) * 1985-04-29 1987-06-30 Starter Systems, Inc. Combined ignitor and transient suppressor for gaseous discharge lighting equipment
US4890041A (en) * 1988-03-10 1989-12-26 Hubbell Incorporated High wattage HID lamp circuit
EP0337022A1 (en) * 1988-04-12 1989-10-18 Actronic Lighting Cc Starting assistance device for a gas discharge lamp
DE4236403A1 (de) * 1992-10-28 1994-07-07 Tridonic Bauelemente Ges Mbh D Zündschaltung für eine Hochdruckmetalldampfentladungslampe
DE19610388A1 (de) * 1996-03-16 1997-09-18 Bosch Gmbh Robert Zündeinrichtung für eine Entladungslampe
JP2001501027A (ja) * 1997-05-21 2001-01-23 パテント―トロイハント―ゲゼルシヤフト フユア エレクトリツシエ グリユーランペン ミツト ベシユレンクテル ハフツング 放電ランプの始動装置及び放電ランプの始動方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005003632U1 (de) * 2005-03-03 2006-07-13 Bag Electronics Gmbh Zündschaltungsanordnung mit erhöhter Ausfallsicherheit

Also Published As

Publication number Publication date
EP1033906A2 (de) 2000-09-06
HU0000994D0 (en) 2000-05-28
JP2000286081A (ja) 2000-10-13
HUP0000994A2 (hu) 2000-09-28
DE19909529A1 (de) 2000-09-07
CA2299864A1 (en) 2000-09-04
HUP0000994A3 (en) 2002-11-28
ATE264603T1 (de) 2004-04-15
KR20000062732A (ko) 2000-10-25
CA2299864C (en) 2008-12-09
DE50006033D1 (de) 2004-05-19
EP1033906A3 (de) 2001-09-19
ES2219214T3 (es) 2004-12-01
US6191538B1 (en) 2001-02-20
KR100615744B1 (ko) 2006-08-25

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