EP1063870B1 - Fortbildung von Zündübertragern für Entladungslampen in Kraftfahrzeugscheinwerfern - Google Patents

Fortbildung von Zündübertragern für Entladungslampen in Kraftfahrzeugscheinwerfern Download PDF

Info

Publication number
EP1063870B1
EP1063870B1 EP00401446A EP00401446A EP1063870B1 EP 1063870 B1 EP1063870 B1 EP 1063870B1 EP 00401446 A EP00401446 A EP 00401446A EP 00401446 A EP00401446 A EP 00401446A EP 1063870 B1 EP1063870 B1 EP 1063870B1
Authority
EP
European Patent Office
Prior art keywords
discharge lamp
transformer
module according
starting module
permanent magnet
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
EP00401446A
Other languages
English (en)
French (fr)
Other versions
EP1063870A1 (de
Inventor
René Tran
Jean Marc Nicolai
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.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP1063870A1 publication Critical patent/EP1063870A1/de
Application granted granted Critical
Publication of EP1063870B1 publication Critical patent/EP1063870B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H05B41/042—Starting switches using semiconductor devices

Definitions

  • the present invention relates to priming modules for discharge lamps especially for a motor vehicle.
  • such a priming module comprises a transformer 1 whose secondary winding 1a is connected in series with the discharge lamp (referenced 3) and whose primary winding 1b is as for him mounted in series with a switching element 2 (thyristor spark gap IGBT).
  • a capacitor 4 is connected in parallel with the branch comprising the spark gap 2 and primary winding 1 b.
  • Such a transformer is for example described in the EP-A-0515958.
  • the transformer comprises a core magnet made of soft ferrite and a secondary winding composed of thin sheet turns so that the core does not saturate in any mode of operation.
  • EP-A-0 740 494 is a circuit for supplying a discharge lamp comprising a transformer whose core consists of two cores of different characteristics joined for example by an adhesive.
  • One of these nuclei is made of a material of low permeability, such as iron powder or permalloy, with high saturation magnetization, while that the other core is formed of ferrite with low saturation magnetization.
  • JP-A-10270270 discloses a transformer for ignition of internal combustion engines, including primary windings and coaxial secondary surrounding a magnetic core at each end of which is arranged a magnet in such a way that the magnetic flux generated by these magnets is opposed to the magnetic flux generated by the primary winding.
  • the spark gap 2 and the transformer 1 allow to generate a pulse of ignition between the electrodes of the discharge lamp high voltage (of the order of 12 to 15 KV).
  • the transformer 1 does not intervene in the operation of the discharge lamp only through its winding secondary 1a which plays the role of a self-inductance.
  • Transformers of priming modules used for discharge lamps motor vehicles are generally dimensioned (electrically and mechanically) so that their secondary winding 1a has a high saturation level (saturation current intensity generally higher at 4 amps).
  • An object of the invention is to solve this problem.
  • the invention proposes a discharge lamp priming module particular for a motor vehicle comprising a high-voltage transformer which comprises a ring-shaped magnetic circuit on which a primary winding is wound in series with a switching element and a secondary winding mounted in series with the discharge lamp, the module further comprising means for modification of the magnetic characteristics to achieve on the transformer a complementary magnetization to push back the saturation level of the secondary winding of said transformer.
  • the invention also relates to a discharge lamp for a motor vehicle, characterized in that its base incorporates a priming module according to a Claims 1 to 5.
  • FIG. 2 shows the transformer 1 of a priming module according to a possible embodiment of the invention.
  • This transformer 1 is a toroidal type transformer.
  • It comprises a ring 5 made of a magnetic material, for example ferrite, on which are wound on the one hand the primary winding 1b and secondly the secondary winding 1a.
  • This ring 5 is not completely closed on itself but presents a gap separation 6, in which a permanent magnet 8 is arranged.
  • This permanent magnet 8 is oriented to move the hysteresis curve of the ring 5. This displacement of the hysteresis curve of the ring 5 allows to increase the current value for which saturation of the magnetic circuit is reached.
  • the permanent magnet 8 can be attached to an end wafer of the ring 5 or, as shown in FIG. 2, be disposed substantially in the middle of the gap 6 without being in contact with the ring 5.
  • an element 7 which is in one non-magnetic and electrically insulating material extending through said air gap 6.
  • FIG. 3 shows the intensity curve of a current pulse I generated in the secondary winding 1a by a given circuit in the case of a transformer 1 without permanent magnet.
  • Figure 3 also shows the intensity curve of a current pulse generated in the secondary winding 1a by the same circuit in case the transformer 1 has a permanent magnet correctly oriented.
  • Figure 3 also shows the intensity curve of a current pulse generated in the secondary winding 1a by the same circuit in the case where the transformer 1 comprises a permanent magnet oriented in the wrong way.
  • the duration of the peak of current t is elongated (from t1 to t2) which facilitates the priming of the lamp.
  • this one keying means which, during assembly, to know the meaning according to which he must position the magnet 8 on the transformer 1.
  • the magnet 8 is of a particular shape that prevents mounting it in the wrong way.
  • a permanent magnet introduced into the magnetic ring of the transformer can be used to increase the value of the current for which a saturation of the magnetic circuit is obtained.
  • the increase in the value of the current for which we obtain saturation of the magnetic circuit can also be achieved by the power supply a complementary winding 9 wound on the ring 5 (winding represented in dashed lines in Figure 2).
  • the power supply of winding 9 can be realized from permanently or transiently.
  • the transformer structures that come to be described are particularly advantageous when one wishes to integrate the boot module for example, as illustrated in Figures 4 and 5, in the base 10 of a discharge lamp or as illustrated in Figure 6, in a connecting box 11 for receiving a discharge lamp.
  • the transformer toric 1 extends in the base 10 perpendicularly to the lamp 3.
  • the transformer 1 is received in a central zone of the housing 11, its axis being for example merged with the axis of the connection zone 12 in which the base of the discharge lamp is intended to be received.
  • the housing 11 further comprises a lateral bulge 13 in which the switching element 2 and the capacitor 4 are received.
  • the invention is also advantageously applicable in the case where wants to integrate the boot module with an electronic module realizing all or part of the control functions of the power supply of a discharge lamp.
  • FIG. 7a This is illustrated in Figure 7a on which a ballast is shown integrated in a connection box 15 for receiving a discharge lamp 3.
  • a transformer is integrated in this housing with the switching element 2, the capacitor 4 and a control electronics 14.
  • FIG. 7b illustrates the case where the ballast or a part thereof is integrated in a module 16 which is remote from the connection box 17 on which the lamp 3 is plugged and to which said module 16 is connected.

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Claims (8)

  1. Zündmodul einer Entladungslampe (3) insbesondere für Kraftfahrzeuge, mit einem Hochspannungstransformator (1), der einen Magnetkreis (5) aufweist, auf den eine mit einem Kommutierungselement in Reihe geschaltete Primärspule (1b) und eine mit der Entladungslampe (3) in Reihe geschaltete Sekundärspule (1a) gewickelt sind, wobei das Modul ferner Mittel (8, 9) zum Ändern der magnetischen Eigenschaften umfasst, um auf dem Transformator (1) eine zusätzliche Magnetisierung vorzunehmen, um den Sättigungsgrad der Sekundärspule (1a) des Transformators (1) zurückzudrängen, und wobei der Magnetkreis (5) ein Ring (5) ist.
  2. Zündmodul nach Anspruch 1,
    dadurch gekennzeichnet, dass die Mittel zur zusätzlichen Magnetisierung (8, 9) einen Permanentmagneten (8) aufweisen, der in dem Magnetkreis (5) angeordnet ist.
  3. Zündmodul nach Anspruch 2,
    dadurch gekennzeichnet, dass der Permanentmagnet (8) in einem Luftspalt (6) des Magnetkreises (5) des Transformators (1) angeordnet ist.
  4. Zündmodul nach einem der Ansprüche 2 oder 3,
    dadurch gekennzeichnet, dass der Permanentmagnet (8) Unverwechselbarkeitsmittel umfasst.
  5. Zündmodul nach Anspruch 1,
    dadurch gekennzeichnet, dass die Mittel zur zusätzlichen Magnetisierung (8, 9) eine auf den Magnetkreis (5) gewickelte dritte Spule (9) aufweisen, die permanent oder vorübergehend versorgt wird.
  6. Entladungslampe (3) für Kraftfahrzeuge,
    dadurch gekennzeichnet, dass ihr Sockel (10) ein Zündmodul nach einem der vorhergehenden Ansprüche beinhaltet.
  7. Verbinder (15) für Entladungslampen für Kraftfahrzeuge,
    dadurch gekennzeichnet, dass er ein Zündmodul nach einem der Ansprüche 1 bis 5 beinhaltet.
  8. Elektronisches Gerät (16) zum Steuern einer Entladungslampe (3),
    dadurch gekennzeichnet, dass es ein Zündmodul nach einem der Ansprüche 1 bis 5 beinhaltet.
EP00401446A 1999-06-21 2000-05-24 Fortbildung von Zündübertragern für Entladungslampen in Kraftfahrzeugscheinwerfern Expired - Lifetime EP1063870B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9908057A FR2795281B1 (fr) 1999-06-21 1999-06-21 Perfectionnements aux modules d'amorcage de lampes a decharge de projecteurs de vehicule automobile
FR9908057 1999-06-21

Publications (2)

Publication Number Publication Date
EP1063870A1 EP1063870A1 (de) 2000-12-27
EP1063870B1 true EP1063870B1 (de) 2004-09-29

Family

ID=9547238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00401446A Expired - Lifetime EP1063870B1 (de) 1999-06-21 2000-05-24 Fortbildung von Zündübertragern für Entladungslampen in Kraftfahrzeugscheinwerfern

Country Status (6)

Country Link
US (1) US6366023B1 (de)
EP (1) EP1063870B1 (de)
JP (1) JP4484324B2 (de)
DE (1) DE60014247T2 (de)
ES (1) ES2228422T3 (de)
FR (1) FR2795281B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20020594A1 (it) * 2002-11-25 2004-05-26 Sisti Lighting S P A De Dispositivo perfezionato per l'accensione e l'alimentazione
DE102004042462A1 (de) * 2004-08-31 2006-03-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Verfahren zum Betreiben einer Hochdruckentladungslampe, Betriebsvorrichtung für eine Hochdruckentladungslampe und Hochdruckentladungslampe mit einer Betriebsvorrichtung
DE202005007484U1 (de) * 2005-05-11 2006-09-21 Vogt Electronic Components Gmbh Zündtransformator und Leuchtensockel für eine Entladungsleuchte
ITRN20130039A1 (it) * 2013-09-27 2015-03-28 Demos Fuochi Dispositivo di accensione per lampade a scarica.
CN103559981B (zh) * 2013-11-20 2018-05-22 戴珊珊 交流永磁增益变压装置及其调压控制方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754541A (en) * 1969-11-04 1973-08-28 Hitachi Ltd Ignition system for internal combustion engine
US3766456A (en) * 1970-06-04 1973-10-16 D Carow Rotating electrical machine
US4194239A (en) * 1978-07-05 1980-03-18 Krishnaswamy Jayaram Electrical invertor apparatus
DE4117288A1 (de) * 1991-05-27 1992-12-03 Hella Kg Hueck & Co Hochspannungs-zuenduebertrager zum zuenden und betreiben von wechselstrom-hochdruck-gasentladungslampen in kraftfahrzeugen
DE19515510A1 (de) 1995-04-27 1997-02-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Impulsbetrieb von Entladungslampen
JPH10270270A (ja) * 1997-03-28 1998-10-09 Matsushita Electric Ind Co Ltd 点火トランス
DE19751548C2 (de) * 1997-11-20 2001-03-15 Vogt Electronic Ag Zündtransformator für eine Entladungslampe

Also Published As

Publication number Publication date
ES2228422T3 (es) 2005-04-16
FR2795281A1 (fr) 2000-12-22
JP2001010404A (ja) 2001-01-16
DE60014247D1 (de) 2004-11-04
FR2795281B1 (fr) 2001-08-17
JP4484324B2 (ja) 2010-06-16
US6366023B1 (en) 2002-04-02
EP1063870A1 (de) 2000-12-27
DE60014247T2 (de) 2005-10-27

Similar Documents

Publication Publication Date Title
EP0509914B1 (de) Elektrische Versorgungsschaltung mit zwei-Betriebsspannungen zur verbesserten Fehlermeldung, namentlich für Kraftfahrzeug
EP1063870B1 (de) Fortbildung von Zündübertragern für Entladungslampen in Kraftfahrzeugscheinwerfern
WO2009138603A1 (fr) Interrupteur de protection mixte electromecanique / semi-conducteur
EP0586308B1 (de) Verbinder und Hochspannungslampe, insbesondere für Fahrzeug
US10821924B2 (en) Vehicle power supply circuit
FR2829660A1 (fr) Circuit d'attaque de lampe a decharge concu pour minimiser le rayonnement du bruit
EP0724332B1 (de) Schaltvorrichtung für Hochspannungsschaltung mit Impulstransformator
US20200119539A1 (en) Vehicle power supply circuit
JPS5987711A (ja) 橋絡接触子
EP0859393B1 (de) Anlasser-Schütz für Motorfahrzeug mit verbesserten Mitteln zum Zentrieren eines festmontierten Kerns
FR2706069A1 (fr) Bobine d'allumage pour moteur à combustion interne.
FR2821306A1 (fr) Dispositif d'alimentation pour composants electriques installes dans un vehicule automobile
WO2016124334A1 (fr) Circuit electronique de commande d'un demi-pont en h
EP0559555B1 (de) Verbesserter störungsunterdrückender Wechselstromgenerator, insbesondere für Kraftfahrzeuge
FR2821499A1 (fr) Convertisseur de tension a decoupage
EP0705528B1 (de) Hochspannungsgenerator
FR2674723A1 (fr) Circuit d'alimentation pour une charge electrique comme une lampe a decharge, notamment pour projecteur de vehicule et projecteur de vehicule utilisant un tel circuit.
JP2005032526A (ja) リレー装置
EP4350721A1 (de) Magnetischer stromsensor, mischstromsensor mit einem solchen magnetischen stromsensor und schutzschalter mit einem solchen mischstromsensor
EP0645886A1 (de) Hochenergiezündgenerator insbesondere für eine Gasturbine
FR2698500A1 (fr) Circuit interrupteur électronique de moyenne ou forte puissance, et convertisseur de tension continu-continu en faisant application.
JPS6033506Y2 (ja) ランプ駆動回路
EP1193849A1 (de) Resonanzversorgungsschaltung mit niedrigen elekromagnetischen Emissionen
FR2758220A1 (fr) Dispositif d'electronique de puissance ayant un module de commande a alimentation electrique amelioree
FR2822584A1 (fr) Bobine d'allumage a rayonnement electromagnetique reduit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010525

AKX Designation fees paid

Free format text: DE ES GB IT

17Q First examination report despatched

Effective date: 20020329

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 60014247

Country of ref document: DE

Date of ref document: 20041104

Kind code of ref document: P

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2228422

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050630

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170517

Year of fee payment: 18

Ref country code: DE

Payment date: 20170511

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20170608

Year of fee payment: 18

Ref country code: IT

Payment date: 20170517

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60014247

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180524

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181201

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180524

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180524

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20190913

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180525