EP0515958A1 - Starter haute-tension pour amorcer et alimenter en courant alternatif des lampes à décharge haute-pression sur des véhicules - Google Patents

Starter haute-tension pour amorcer et alimenter en courant alternatif des lampes à décharge haute-pression sur des véhicules Download PDF

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Publication number
EP0515958A1
EP0515958A1 EP92108468A EP92108468A EP0515958A1 EP 0515958 A1 EP0515958 A1 EP 0515958A1 EP 92108468 A EP92108468 A EP 92108468A EP 92108468 A EP92108468 A EP 92108468A EP 0515958 A1 EP0515958 A1 EP 0515958A1
Authority
EP
European Patent Office
Prior art keywords
core
secondary winding
ignition transformer
winding
transformer according
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
EP92108468A
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German (de)
English (en)
Other versions
EP0515958B1 (fr
Inventor
Friedrich-Karl Wendt
Wolfgang Daub
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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
Application filed by Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP0515958A1 publication Critical patent/EP0515958A1/fr
Application granted granted Critical
Publication of EP0515958B1 publication Critical patent/EP0515958B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps
    • 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-voltage ignition transformer for igniting and operating AC high-pressure gas discharge lamps in motor vehicles, with a core, with a primary winding surrounding the core, which consists of a film and with a secondary winding surrounding the core, which consists of a film, an insulating film being arranged between the individual layers of the primary winding and the secondary winding.
  • a high-voltage ignition transformer for igniting and operating high-pressure gas discharge lamps is known, the primary winding and the secondary winding of which are wound from a film.
  • the material of the core of the high-voltage ignition transmitter consists of air.
  • the exemplary embodiment shown relates to a high-pressure gas discharge lamp for use in the home, the high-pressure gas discharge lamp having a socket for screwing into commercially available lamps.
  • the turns of the high voltage ignition transformer are wound on the end part of the glass bulb of the lamp.
  • Such a high-voltage ignition transformer is not suitable for use in motor vehicles because, on the one hand, the high-pressure gas discharge lamps used in the home and in the motor vehicle area differ and, on the other hand, the dimensions for the efficiency that can be achieved using an air core and the required dielectric strength for the previously known embodiment are too large for an application in the motor vehicle.
  • the invention is therefore based on the object of creating a high-voltage ignition transformer for AC high-pressure gas discharge lamps in motor vehicles, which has a current-independent secondary inductance, which has the smallest possible dimensions and which has a simple and inexpensive, high-voltage-compatible winding structure with the highest possible efficiency.
  • the core is designed as a stretched core, that the stretched core consists of a soft magnetic ferrite material and that the core has a cross-sectional area and the secondary winding has a number of turns in which the core is unsaturated in all operating conditions .
  • the core is designed as an elongated core, because thus the secondary inductance of the high-voltage ignition transformer can be dimensioned almost independently of current and thus irregularities in the operating current, which, for. B. complicate the control of a constant light output, as well as sudden changes in the large starting currents can be safely and reliably avoided, since the core can not go into saturation.
  • the high-voltage ignition transformer can have the smallest possible dimensions and a breakdown-proof high-voltage-compatible winding structure is achieved with the highest possible efficiency.
  • the stretched core consists of a soft magnetic ferrite material, whereby the dimensions can be particularly small, and the highest possible efficiency for the high-voltage ignition transformer can be achieved with a high-voltage-compatible winding structure.
  • the core has a cross-sectional area and the secondary winding has a number of turns in which the core is unsaturated in all operating conditions.
  • the core consists of a high-resistance soft magnetic ferrite material results in the advantage that the eddy current losses in the ferrite core can be kept as small as possible.
  • the primary winding is wound on the secondary winding, because in this way the primary winding completely encloses the secondary winding and thus there is the best possible magnetic coupling of the primary winding with the secondary winding, which results in high efficiency and on the other hand the advantage that the lower potential is present when the high-voltage ignition transmitter is operated on the outside of the high-voltage ignition transmitter, which results in simplified, better insulation and thus greater security against flashovers.
  • the primary winding and the secondary winding each have one turn per layer of the film, because thus the very high winding voltage is at the same time the layer voltage, which is isolated by the insulating film and the Primary winding is automatically evenly distributed over the entire winding width, even with a minimum number of turns, so that there is an optimal coupling between the primary winding and the secondary winding and, in addition, partial saturations of the ferrite core are avoided.
  • the insulating film arranged between the individual layers of the primary winding and the secondary winding is wider than the film of the primary winding and the secondary winding, because this results in a particularly high security against flashovers with a simple and inexpensive construction.
  • a coil former made of insulating material is arranged between the secondary winding and the core, because the direct winding onto the core is complex and difficult.
  • the core is a rod core, which results in a particularly simple and inexpensive embodiment in which there is no saturation of the soft magnetic ferrite core.
  • the core has the shoulders supporting the windings results in the advantage that the field lines do not emerge as far from the end regions of the stretched soft magnetic ferrite core as in the case of a stretched core which does not have such shoulders, as a result of which eddy current losses in adjacent metal parts such as B. a housing can be reduced.
  • the core, the bobbin, the primary winding and the secondary winding are cast in an insulating casting compound, because the risk of flashovers is thus reduced to a minimum and the safety and the service life are increased.
  • the high-voltage ignition transformer is a particularly compact, high-voltage-resistant, easy-to-assemble component.
  • FIG. 1 shows a longitudinal section through a high-voltage ignition transformer according to the invention.
  • the stretched core (K) made of soft magnetic ferrite material, which is designed here, for example, as a rod core, is surrounded by a coil former (U), which consists of insulating material.
  • the secondary winding (S) of the high-voltage ignition transformer which consists of a conductive film (F) and an insulating film (I), is wound onto the coil former (U).
  • the primary winding (P), which also consists of a conductive film (F) and an insulating film (I), is wound onto the secondary winding (S).
  • the primary winding (P) and the secondary winding (S) are connected here by way of example to electrical connection elements (A) for the electrical connection.
  • the contacting of the electrically conductive film (F) with the electrical connection elements (A) is not shown here and can, for. B. are made in the foils or welded to these connections.
  • the core (K), the coil former (U), the primary winding (P) and the secondary winding (S) are cast here in an insulating potting compound (V) as an example to improve the flashover resistance.
  • the core (K), the coil former (U), the primary winding (P) and the secondary winding (S) are arranged here by way of example in a housing (G) and potted with this.
  • the high-voltage ignition transformer can also be cast in an insulating casting compound (V) with other components of an ignition device of a high-pressure gas discharge lamp.
  • FIG. 2 shows a cross section through a high-voltage ignition transformer according to the invention.
  • the high-voltage ignition transformer here consists, for example, of a core (K), a coil former (U), a primary winding (P) and a secondary winding (S) using film technology, which with their electrical connection elements (A), Two of which are shown here by way of example, are cast in an enclosure (G) by means of an insulating casting compound (V).
  • the embodiment shown in Figure 1 and Figure 2 has particularly small dimensions and is particularly high voltage resistant with a simple and inexpensive design.
  • the length of the housing is, for example, approximately 2 to 3 cm and the width and height of the housing is, for example, approximately 1 to 2 cm. In other exemplary embodiments, these dimensions can also be larger or smaller.
  • the secondary winding (S) applied to the inside of the coil former (U) has, for example, about 100 turns and has the primary winding (P) applied to the secondary winding (S), for example, about 4 turns.
  • FIG. 3 shows the detail (H) corresponding to Figure 1.
  • the core (K) consists of a soft magnetic ferrite material. In order to keep eddy current losses as low as possible, a material that is as high-resistance as possible is used here as an example.
  • the coil former (U) surrounds the core (K) in such a way that the core (K) and the coil former (U) lie firmly against one another.
  • the secondary winding (S) is firmly wound on the bobbin (U).
  • the primary winding (P), not shown in FIG. 3, is wound tightly onto the secondary winding (S).
  • the core (K) can have the shoulders (P, S) which support the windings Do not allow field lines to emerge at the free ends of the core (K) as far as with a straight core (K) without such shoulders.
  • a particularly favorable embodiment of the core (K) results when using a roller core. Designs of this type are not shown in the figures.
  • FIG. 4 shows the winding structure of both the primary winding (P) and the secondary winding (S).
  • Each layer of the primary winding (P) and the secondary winding (S) consists of an electrically conductive film (F), which is insulated from the other layers by an insulating film (I).
  • the width of the film (F) is, for example, approximately 2/3 of the width of the insulating film (I), in order to avoid rollovers with great reliability.
  • the width of the insulating film corresponds to the length of the cylindrical core (K) in order to avoid rollovers as best as possible.
  • the insulating film (I) consists here, for example, of a plastic material and has, for example, a thickness of approximately 15 ⁇ m.
  • the foil (F), from which the primary winding (P) and the secondary winding (S) are made, can be made of copper or aluminum, for example, and can have a thickness of about 10 ⁇ m, for example. Depending on the application and the requirements, these dimensions can be larger or smaller.
  • High-voltage ignition transformer for igniting and operating AC high-pressure gas discharge lamps in motor vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP92108468A 1991-05-27 1992-05-20 Starter haute-tension pour amorcer et alimenter en courant alternatif des lampes à décharge haute-pression sur des véhicules Expired - Lifetime EP0515958B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4117288A DE4117288A1 (de) 1991-05-27 1991-05-27 Hochspannungs-zuenduebertrager zum zuenden und betreiben von wechselstrom-hochdruck-gasentladungslampen in kraftfahrzeugen
DE4117288 1991-05-27

Publications (2)

Publication Number Publication Date
EP0515958A1 true EP0515958A1 (fr) 1992-12-02
EP0515958B1 EP0515958B1 (fr) 1995-03-15

Family

ID=6432531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92108468A Expired - Lifetime EP0515958B1 (fr) 1991-05-27 1992-05-20 Starter haute-tension pour amorcer et alimenter en courant alternatif des lampes à décharge haute-pression sur des véhicules

Country Status (3)

Country Link
EP (1) EP0515958B1 (fr)
DE (2) DE4117288A1 (fr)
ES (1) ES2070551T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996001550A1 (fr) * 1994-07-05 1996-01-18 Robert Bosch Gmbh Systeme d'allumage pour lampes a decharge gazeuse, notamment pour feux d'automobiles
WO1998053647A1 (fr) * 1997-05-21 1998-11-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dispositif d'allumage pour une lampe a decharge et procede pour allumer une lampe a decharge
EP0884933A2 (fr) * 1997-06-10 1998-12-16 Ultralux AB Transformateur d'amorcage pour lampes à décharge
FR2795281A1 (fr) * 1999-06-21 2000-12-22 Valeo Vision Perfectionnements aux modules d'amorcage de lampes a decharge de projecteurs de vehicule automobile
FR2838912A1 (fr) * 2002-04-19 2003-10-24 Tyco Electronics France Sas Transformateur d'impulsions pour lampe a decharge a haute intensite, procede pour sa fabrication et module de starter pour une telle lampe
EP1635619A3 (fr) * 2004-09-10 2006-05-24 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Transformateur, amorceur et lampe à décharge haute-pression contenant un tel transformateur
WO2007087818A1 (fr) 2006-01-20 2007-08-09 Vogt Electronic Components Gmbh Transformateur d'allumage et module d'allumage pour lampe a decharge

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4333886A1 (de) * 1993-10-05 1995-04-06 Hella Kg Hueck & Co Zündtransformator für eine Gasentladungslampe
DE19803856A1 (de) * 1998-01-31 1999-08-05 Hella Kg Hueck & Co Zündtransformator
DE20312503U1 (de) 2003-08-11 2003-12-24 Niggemeyer, Gert Günther, Ing.(grad.) Stabförmiger Zündübertrager
US7855625B2 (en) 2006-08-31 2010-12-21 General Electric Company Lamp transformer
US7760061B2 (en) 2006-08-31 2010-07-20 General Electric Company Lamp transformer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527098A (en) * 1983-01-28 1985-07-02 General Electric Company Discrete starter for HID lamp
US4939430A (en) * 1987-12-16 1990-07-03 Advance Transformer Company Ignitor circuit for discharge lamps with novel ballast
EP0391470A1 (fr) * 1989-04-04 1990-10-10 Koninklijke Philips Electronics N.V. Dispositif de commutation
DE3929029A1 (de) * 1989-09-01 1991-03-07 Bosch Gmbh Robert Schaltungsanordnung zum betrieb einer gasentladungslampe
EP0484074A2 (fr) * 1990-10-29 1992-05-06 General Electric Company Transformateur à haute fréquence avec réactance à champ de dispersion fort

Family Cites Families (12)

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US2905915A (en) * 1954-01-22 1959-09-22 Harris Transducer Corp Compensated transformer
US2962679A (en) * 1955-07-25 1960-11-29 Gen Electric Coaxial core inductive structures
US3235770A (en) * 1962-12-27 1966-02-15 Gen Electric Pulse starting device using a special pulse transformer having integral capacitance
SU537460A1 (ru) * 1975-06-23 1976-11-30 Лидский Завод Электроизделий Импульсный трансформатор
SU875481A1 (ru) * 1980-01-21 1981-10-23 Предприятие П/Я Г-4391 Трансформатор
US4680509A (en) * 1985-12-23 1987-07-14 Gte Laboratories, Inc. Method and apparatus for starting high intensity discharge lamps
SU1436136A1 (ru) * 1986-10-08 1988-11-07 Всесоюзный Научно-Исследовательский,Проектно-Конструкторский И Технологический Институт Токов Высокой Частоты Им.В.П.Вологдина Высокочастотный трансформатор
DE3708226C2 (de) * 1987-03-13 1995-04-13 Philips Patentverwaltung Drossel mit zwei Spulen
DE3733376A1 (de) * 1987-10-02 1989-04-13 Vacuumschmelze Gmbh Verfahren zur herstellung eines koaxial feldgekoppelten uebertragers
EP0321416A1 (fr) * 1987-12-17 1989-06-21 INDUSTRIE MAGNETI MARELLI S.r.l. Bobine d'allumage
DE3744122A1 (de) * 1987-12-24 1989-07-06 Vacuumschmelze Gmbh Umgekehrter transformator
IT1234175B (it) * 1989-02-21 1992-05-05 Ducati Energia Spa Metodo e dispositivo survoltore.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527098A (en) * 1983-01-28 1985-07-02 General Electric Company Discrete starter for HID lamp
US4939430A (en) * 1987-12-16 1990-07-03 Advance Transformer Company Ignitor circuit for discharge lamps with novel ballast
EP0391470A1 (fr) * 1989-04-04 1990-10-10 Koninklijke Philips Electronics N.V. Dispositif de commutation
DE3929029A1 (de) * 1989-09-01 1991-03-07 Bosch Gmbh Robert Schaltungsanordnung zum betrieb einer gasentladungslampe
EP0484074A2 (fr) * 1990-10-29 1992-05-06 General Electric Company Transformateur à haute fréquence avec réactance à champ de dispersion fort

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996001550A1 (fr) * 1994-07-05 1996-01-18 Robert Bosch Gmbh Systeme d'allumage pour lampes a decharge gazeuse, notamment pour feux d'automobiles
WO1998053647A1 (fr) * 1997-05-21 1998-11-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dispositif d'allumage pour une lampe a decharge et procede pour allumer une lampe a decharge
US6181081B1 (en) 1997-05-21 2001-01-30 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Ignition device for a discharge lamp and method for igniting a discharge lamp
EP0884933A3 (fr) * 1997-06-10 1999-04-14 Ultralux AB Transformateur d'amorcage pour lampes à décharge
EP0884933A2 (fr) * 1997-06-10 1998-12-16 Ultralux AB Transformateur d'amorcage pour lampes à décharge
FR2795281A1 (fr) * 1999-06-21 2000-12-22 Valeo Vision Perfectionnements aux modules d'amorcage de lampes a decharge de projecteurs de vehicule automobile
EP1063870A1 (fr) * 1999-06-21 2000-12-27 Valeo Vision Perfectionnements aux modules d'amorçage de lampes à décharge de projecteurs de véhicule automobile
US6366023B1 (en) 1999-06-21 2002-04-02 Valeo Vision Starter modules for motor vehicle headlight discharge lamps
FR2838912A1 (fr) * 2002-04-19 2003-10-24 Tyco Electronics France Sas Transformateur d'impulsions pour lampe a decharge a haute intensite, procede pour sa fabrication et module de starter pour une telle lampe
EP1635619A3 (fr) * 2004-09-10 2006-05-24 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Transformateur, amorceur et lampe à décharge haute-pression contenant un tel transformateur
US7528693B2 (en) 2004-09-10 2009-05-05 Osram Gesellschaft Mit Beschraenkter Haftung Transformer and starting device having a transformer, and high pressure discharge lamp having a transformer
CN1755846B (zh) * 2004-09-10 2011-10-26 电灯专利信托有限公司 高压放电灯
WO2007087818A1 (fr) 2006-01-20 2007-08-09 Vogt Electronic Components Gmbh Transformateur d'allumage et module d'allumage pour lampe a decharge

Also Published As

Publication number Publication date
EP0515958B1 (fr) 1995-03-15
ES2070551T3 (es) 1995-06-01
DE4117288A1 (de) 1992-12-03
DE59201632D1 (de) 1995-04-20

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