EP0522475B1 - Elément inductif et son procédé de fabrication - Google Patents

Elément inductif et son procédé de fabrication Download PDF

Info

Publication number
EP0522475B1
EP0522475B1 EP92111382A EP92111382A EP0522475B1 EP 0522475 B1 EP0522475 B1 EP 0522475B1 EP 92111382 A EP92111382 A EP 92111382A EP 92111382 A EP92111382 A EP 92111382A EP 0522475 B1 EP0522475 B1 EP 0522475B1
Authority
EP
European Patent Office
Prior art keywords
insulating material
layers
windings
stack
winding
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
EP92111382A
Other languages
German (de)
English (en)
Other versions
EP0522475A1 (fr
Inventor
Jürgen Pilniak
Hermann Struck
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0522475A1 publication Critical patent/EP0522475A1/fr
Application granted granted Critical
Publication of EP0522475B1 publication Critical patent/EP0522475B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2847—Sheets; Strips
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil

Definitions

  • the invention relates to an inductive component with at least two windings and a method for producing such a component.
  • Inductive components are, for example, transformers, transformers, converters or choke coils.
  • inductive components can be manufactured according to the prior art in that enamel-insulated round copper wires or insulated flat copper strips are wound on bobbins as winding carriers. For the insulation of windings against each other, insulation foils are wound or, for example, multi-chamber bobbins are used. In some cases, additional full cast resin or impregnation is required.
  • the known inductive components have a relatively large volume and require a large amount of material.
  • the manufacture requires complicated winding machines or labor-intensive manufacturing processes.
  • EP-A2-0 435 461 discloses an inductive component and a method for its production, multilayer stacks of insulating material layers and structured metal layers being used instead of conventional wire windings.
  • the height of the inductive component can thus be better matched to that of other components of a circuit.
  • a structured metal layer forms a turn of a coil. Multiple turns are made using metal pins can be produced by connecting individual turns in series.
  • the invention is based on the object of specifying such an inductive component which is embodied in a stacked construction and a method for its production which can meet increased requirements with regard to electrical insulation, compact and inexpensive windings and low power loss.
  • an inductive component in particular a transformer, with at least two windings, each of which can have one or more turns, insulation material layers and structured metal layers being stacked on top of one another, and electrical connections between structured metal layers to be contacted are made by means of metallic connecting pins.
  • the insulating material layers are made of a material that is deformable under the influence of pressure and temperature. Spirally structured metal layers are used to form windings with several turns.
  • the layered stack is baked by the action of pressure and temperature, the insulating material layers being somewhat larger than the metal layers, baked during the manufacturing process to form a common winding package that is electrically insulated on all sides.
  • Square or hexagonal pins are used as connecting pins for the production of electrical connections in the winding package, which are pressed into the winding package at selected points in bores perpendicular to the layer plane and cold-welded.
  • the components according to the invention are notable for a particularly small size and for saving material since, for example, no separate coil former is required.
  • the electrical insulation requirements can take up less space be met.
  • the inductive components can be produced inexpensively and have advantageous technical data, in particular a large main inductance, a low power loss and thus also a good efficiency.
  • FIG. 1a shows the front view
  • FIG. 1b shows the side view of a transformer 1 according to the invention.
  • the transformer 1 contains a core 2 and a winding package 3 with connections 4, which correspond to the connections shown in FIG. 2 with 4.11, 4.13, 4.21, 4.22 and 4.23 are specified.
  • bores 5 can also be seen, into which connecting pins 6 (see FIG. 5f) are inserted.
  • FIGS. 1a and 1b shows the electrical circuit diagram of the transformer 1 shown in FIGS. 1a and 1b.
  • the transformer 1 has two primary windings 7a and 7b and two secondary windings 8a and 8b.
  • the transformer 1 can have further windings, for example for auxiliary voltages contain.
  • the primary windings 7a and 7b are connected in series with the aid of a bridge 13, which is realized by means of connecting pins 6 in the upper row of bores 5 in FIG. 1a, as by comparison with Figures 5a and 5b can be understood.
  • the secondary windings 8a and 8b are electrically connected in series, but a metal part 11 and connecting pins 6 shown in FIG. 5e are used to implement a secondary-side connection point 14, which is led out as connection 4.22.
  • Fig. 3 the layered structure of the winding package 3 is shown schematically for the embodiment shown in the other figures.
  • the following are stacked one above the other: a first insulating material layer 9, the second primary winding 7b, a further insulating layer 9, the second secondary winding 8b, an insulating layer 9, the first secondary winding 8a, an insulating layer 9, the first primary winding 7a, an insulating layer 9, a metal part ( see Fig. 5e) for establishing the secondary connection to the winding ends 14.1 and 14.2 via (not shown in Fig. 3) connecting pins 6 and an upper insulating layer 9.
  • the insulating material layers 9, of the individual levels are dimensioned in terms of their thickness in accordance with the respective insulation requirements.
  • the insulating material layers are somewhat larger than the metal layers 11, so that baking of the insulating layers 9 in a manufacturing step in which deformation of the insulating material layers or melting of the resin contained therein is brought about by the action of temperature and pressure, also in an edge region 10 and in Spaces between the structured Metal layers 11 a closed electrically insulating layer is reached.
  • the meltable resin hardens on cooling and creates a permanent connection between the layers of the winding package.
  • the insulating material layers 9 can be designed as multi-layer glass fiber mats or plates, the respective insulation requirements being met by choosing an appropriate number of layers. For example, a smaller number of layers may be sufficient to insulate several secondary windings from one another than to insulate between primary and secondary windings.
  • insulating material layers 9 can also be considered as insulating material layers 9, such as, for example, ceramic plates, which can be connected, for example, to structured copper foils using the direct connection method.
  • FIG. 4 shows the winding package 3 of the transformer shown in FIG. 1.
  • FIGS. 5a to 5f show the metal parts of the winding package 3.
  • FIGS. 5a to 5d show structured metal layers 11 which are designed, for example, as 0.5 mm thick copper sheets.
  • the structuring into flat, for example 5 or 8 mm wide, spiral turns of a coil can be achieved by stamping, etching or other methods. Molded external connections 4.11, 4.13, 4.21 and 4.23 are produced at the same time.
  • To produce the primary winding with the connections 4.11 and 4.13 two partial windings 7a and 7b, each with three turns, are used.
  • the winding ends 13.1 and 13.2 inside the spirals are interconnected to produce the bridge 13 shown in FIG. 2.
  • the two partial windings 7a and 7b are placed one above the other with the interposition of an insulating material layer 9, as shown in FIG. 6.
  • the partial windings 7a and 7b are designed in the same way, but are superimposed on each other in a mirror image, so that the winding ends 13.1 and 13.2 lie one above the other and can be connected to one another by means of connecting pins 6, in order to implement the bridge 13.
  • the secondary windings 8a and 8b are designed and placed one above the other, but the bridge 14 is realized by connecting the winding ends 14.1 and 14.2 to the metal piece shown in FIG. 5e, again using connecting pins 6, one of which is shown in FIG. 5f is shown.
  • the arrangement of the piece of metal shown in Fig. 5e, which is also terminal 4.22, is indicated in Fig. 1 with dashed lines.
  • connection pins 6 Square pins made of a copper alloy are provided as connecting pins 6, which are dimensioned in relation to the bores 5 such that cold welding occurs when the pins are pressed into the bores 5. It goes without saying that the pins can also have a different shape and that the electrical and mechanical connection can also be produced in another way.
  • FIG. 7 shows a preferred embodiment of the insulating material layer 9, namely as a glass fiber fabric mat or plate which contains a meltable resin.
  • a cutout 15 for the core 2 is kept free in the insulating material layer 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Claims (4)

  1. Elément inductif, notamment transformateur (1), avec au moins deux enroulements (7a, 7b, 8a, 8b) qui peuvent comporter chacun une ou plusieurs spires,
    - des couches (9) de matériau isolant et des couches métalliques structurées (11) étant empilées l'une sur l'autre et
    - des liaisons électriques entre les couches métalliques structurées (11) à contacter étant réalisées au moyen de broches de liaison (6) métalliques,
    caractérisé en ce que
    a) les couches (9) de matériau isolant sont réalisées en un matériau conformable à chaud et par pression,
    b) on utilise pour former des enroulements (7a, 7b, 8a, 8b) à plusieurs spires des couches métalliques structurées (11) en spirale,
    c) les couches (9, 11) empilées, parmi lesquelles les couches (9) de matériau isolant ont une surface légèrement plus grande que les couches métalliques (11), sont réunies par chauffage et par pression au cours du processus de fabrication pour former un paquet d'enroulements (3) commun, isolé électriquement sur toutes ses faces et
    d) on utilise comme broches de liaison (6), pour réaliser les liaisons électriques à l'intérieur du paquet d'enroulements (3), des broches à section carrée ou hexagonale qui sont enfoncées dans le paquet d'enroulements (3), en des points déterminés, dans des trous (5), perpendiculairement au plan de la couche, et sont soudées à froid.
  2. Elément inductif selon la revendication 1, caractérisé en ce que les couches métalliques (11) structurées pour former des enroulements (7a, 7b, 8a, 8b) sont en tôle de cuivre ou d'aluminium et sont agencées en forme de bande de tôle enroulée en spirale, à plat dans un plan, obtenue par découpage-poinçonnage.
  3. Elément inductif selon la revendication 1 ou 2, caractérisé en ce que les couches (9) de matériau isolant sont constituées de plaques de tissu de fibre de verre à un ou plusieurs plis, les interstices dans le tissu étant remplis d'un résine fusible.
  4. Procédé de fabrication d'un élément inductif, par exemple d'un transformateur, plusieurs enroulements de l'élément étant disposés à l'intérieur d'un paquet d'enroulements, caractérisé en ce que le paquet d'enroulements est fabriqué par les étapes:
    a) on empile alternativement l'une sur l'autre, pour former un empilement, plusieurs couches de matériau isolant et de tôles métalliques structurées pour former des enroulements en spirale et des bornes,
    - la pile commençant et se terminant chaque fois par une couche de matériau isolant,
    - les couches de matériau isolant étant adaptées aux exigences d'isolation, par exemple par une épaisseur de couche adaptée,
    - les couches en matériau isolant étant formées d'un matériau ne fondant qu'à des températures très élevées, par exemple un tissu de verre ou une plaquette de céramique, et étant combinées par incorporation ou par revêtement, à un adhésif à bas point de fusion, par exemple une résine, et
    - des extrémités d'enroulement et des pattes de connexion à relier électriquement étant disposées l'une au-dessus de l'autre avec recouvrement, étant cependant séparées par des couches de matériau isolant;
    b) on réunit par chauffage et par pression les couches empilées, les couches de matériau isolant et plus particulièrement l'adhésif qui fond au cours de cette étape de procédé entourant de manière étanche les tôles métalliques structurées et remplissant les interstices;
    c) pour réaliser des liaisons électriques entre les différents enroulements ou parties d'enroulements ainsi qu'entre les extrémités d'enroulement et les bornes de connexion, on perce des trous perpendiculairement au plan des couches, aux endroits où des couches métalliques à relier se recouvrent, on enfile de broches de liaison, de préférence des broches carrées, et on les soude à froid aux tôles, pour obtenir une liaison ferme et étanche au gaz.
EP92111382A 1991-07-10 1992-07-04 Elément inductif et son procédé de fabrication Expired - Lifetime EP0522475B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4122796A DE4122796A1 (de) 1991-07-10 1991-07-10 Induktives bauelement und verfahren zu seiner herstellung
DE4122796 1991-07-10

Publications (2)

Publication Number Publication Date
EP0522475A1 EP0522475A1 (fr) 1993-01-13
EP0522475B1 true EP0522475B1 (fr) 1996-05-22

Family

ID=6435813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92111382A Expired - Lifetime EP0522475B1 (fr) 1991-07-10 1992-07-04 Elément inductif et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP0522475B1 (fr)
AT (1) ATE138493T1 (fr)
DE (2) DE4122796A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608127A1 (fr) * 1993-01-22 1994-07-27 AT&T Corp. Système d'isolation pour enroulements magnétiques avec des conducteurs plats empilés
US5652561A (en) * 1993-06-29 1997-07-29 Yokogawa Electric Corporation Laminating type molded coil
CN1115193A (zh) * 1993-09-29 1996-01-17 日本电装株式会社 电动机励磁线圈
DE19542357A1 (de) * 1995-10-24 1997-04-30 Abb Patent Gmbh Schaltungsanordnung für einen AC/DC-Konverter mit Potentialtrennung und induktives Bauelement zur Verwendung in einer solchen Schaltungsanordnung
DE29522242U1 (de) 1995-10-24 2000-12-21 Abb Patent Gmbh Schaltungsanordnung für einen AC/DC-Konverter mit Potentialtrennung und induktives Bauelement zur Verwendung in einer solchen Schaltungsanordnung
BG62541B1 (bg) * 1997-03-19 2000-01-31 "Изоматик Лаб." ООД Намотка на трансформатор за електросъпротивително заваряване
ES2188473T3 (es) * 1999-03-31 2003-07-01 Siemens Ag Transformador, convertidor o bobina de induccion con arrollamientos de disco asi como procedimiento para la fabricacion de un componente de este tipo.
DE19945013C5 (de) * 1999-09-20 2005-10-13 Epcos Ag Planartransformator
DE10234081A1 (de) * 2002-07-26 2004-02-05 Philips Intellectual Property & Standards Gmbh Vorrichtung mit einer Schaltungsanordnung mit induktivem Element
EP3944271A1 (fr) * 2016-12-22 2022-01-26 AT & S Austria Technologie & Systemtechnik Aktiengesellschaft Inducteur constitué d'un matériau support de composant comprenant des structures de plaques électroconductrices
CN107578898A (zh) * 2017-09-29 2018-01-12 东翔电子（东莞）有限公司 一种内置多层电路的变压器骨架及其制备方法
KR102424223B1 (ko) * 2020-08-31 2022-07-25 (주) 트랜스온 트랜스포머용 프라이머리 코일 어셈블리 및 이를 포함하는 트랜스포머
DE102021203048A1 (de) * 2021-03-26 2022-09-29 Siemens Mobility GmbH Spiraleinrichtung und Verfahren zu deren Herstellung
WO2023079470A1 (fr) * 2021-11-03 2023-05-11 Leonardo Busi Inducteur plan dans l'air, en particulier pour circuits de puissance radiofréquence

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514136A1 (fr) * 1991-05-15 1992-11-19 International Business Machines Corporation Transformateur amélioré
EP0514600A1 (fr) * 1990-01-11 1992-11-25 Magnex Corporation Dispositif transducteur/transformateur à film mince
EP0516456A2 (fr) * 1991-05-31 1992-12-02 Pi-Ta Hwang Transformateur avec enroulement laminé imprimé

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE28947C (de) * L. gaulard und J. D. GlBBS in London Neuerungen an Induktoren zur Erzeugung sekundärer Ströme von verschiedener Stärke für die Vertheilung der elektrischen Kraft
DE2260492A1 (de) * 1972-12-11 1974-06-12 Wilfried Strauss Elektrischer transformator mit gedruckter anordnung
JPS52103633A (en) * 1976-02-27 1977-08-31 Nippon Telegr & Teleph Corp <Ntt> High frequency transformer for use of big current
FR2476898B1 (fr) * 1980-02-22 1985-06-28 Mini Informatiq System Ste Eur Bobinage electromagnetique comportant des elements discrets et dispositif d'alimentation electrique comportant de tels bobinages
US4410585A (en) * 1981-03-02 1983-10-18 General Electric Company Layer insulation for use in high-voltage electrical equipment
DE8226746U1 (de) * 1982-09-23 1983-04-14 Schwär, Gerhard, 2070 Ahrensburg Transformator
FR2615319B1 (fr) * 1987-05-15 1989-07-07 Bull Sa Transformateur a fort couplage adapte a un circuit d'alimentation a decoupage et circuit d'alimentation a decoupage comportant un tel transformateur
US5179365A (en) * 1989-12-29 1993-01-12 At&T Bell Laboratories Multiple turn low profile magnetic component using sheet windings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514600A1 (fr) * 1990-01-11 1992-11-25 Magnex Corporation Dispositif transducteur/transformateur à film mince
EP0514136A1 (fr) * 1991-05-15 1992-11-19 International Business Machines Corporation Transformateur amélioré
EP0516456A2 (fr) * 1991-05-31 1992-12-02 Pi-Ta Hwang Transformateur avec enroulement laminé imprimé

Also Published As

Publication number Publication date
DE59206342D1 (de) 1996-06-27
ATE138493T1 (de) 1996-06-15
EP0522475A1 (fr) 1993-01-13
DE4122796A1 (de) 1993-01-21

Similar Documents

Publication Publication Date Title
EP0522475B1 (fr) Elément inductif et son procédé de fabrication
DE19544915C2 (de) Elektronisches Bauteil niedrigen Profils
DE4128931C2 (de) Ablenkspule in einem Elektromagneten und ein Verfahren zu ihrer Herstellung
DE60004812T2 (de) Mehrschichtige transformatoranordnung und verfahren
DE3690625C2 (de) Verfahren zum Herstellen einer Baueinheit aus einem magnetischen Kern aus amorphem Metall und einer Spulenstruktur für einen elektrischen Transformator und elektrischer Transformator
EP1171945B1 (fr) Procédé de production d&#39;un noyau à excitation magnetique comprenant un enroulement de noyau, destiné à une machine électrique
DE10019461B4 (de) Entstörfilter und dieses enthaltende Entstörfiltereinheit
DE102008022170A1 (de) Spule für eine elektrische Maschine und Herstellungsverfahren für eine Spule
DE2825854A1 (de) Hybridtransformatoreinrichtung
DE3144026A1 (de) &#34;transformator&#34;
DE1223461B (de) Verfahren zur Herstellung von Halbleiter-Gleichrichteranordnungen mit tablettenfoermigen Gleichrichterelementen
DE19653442C2 (de) Zündspule für eine Brennkraftmaschine
EP0995205A1 (fr) Bobine d&#39;inductance planaire multicouche et son procede de production
DE69815473T2 (de) Planare wicklungsstruktur und flaches magnetisches bauteil mit reduzierten abmessungen und verbesserten thermischen eigenschaften
EP3648312A1 (fr) Bobine préfabriquée pour un entraînement direct
DE19506589C2 (de) Elektrische Zündspule
DE10202476B4 (de) Elektromagnetische Spule mit Rechteckform
DE19725865A1 (de) Transformatorwicklungsstruktur
DE4411134C3 (de) Zündspule für Brennkraftmaschine
EP2546957A2 (fr) Stator et segment de stator ainsi que son procédé de fabrication
EP0767473A1 (fr) Bobine et procédé de sa fabrication pour transformateur
EP2056309B1 (fr) Procédé de fabrication d&#39;une bobine et bobine
DE4445423B4 (de) Verfahren zum Herstellen von Wicklungen für einen Trockentransformator
WO2020136261A1 (fr) Procédé de fabrication d&#39;un fusible
DE19945013C1 (de) Planartransformator

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): AT DE FR GB IT

17P Request for examination filed

Effective date: 19930402

17Q First examination report despatched

Effective date: 19950315

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT

REF Corresponds to:

Ref document number: 138493

Country of ref document: AT

Date of ref document: 19960615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59206342

Country of ref document: DE

Date of ref document: 19960627

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960624

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: FR

Ref legal event code: CA

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

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

Ref country code: IT

Payment date: 20080620

Year of fee payment: 17

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

Ref country code: AT

Payment date: 20080610

Year of fee payment: 17

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

Ref country code: AT

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

Effective date: 20090704

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

Ref country code: IT

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

Effective date: 20090704

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

Ref country code: FR

Payment date: 20110729

Year of fee payment: 20

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

Ref country code: GB

Payment date: 20110721

Year of fee payment: 20

Ref country code: DE

Payment date: 20110722

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59206342

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59206342

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20120703

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 EXPIRATION OF PROTECTION

Effective date: 20120705

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20120703