EP1849169A1 - Transformer core comprising magnetic shielding - Google Patents

Transformer core comprising magnetic shielding

Info

Publication number
EP1849169A1
EP1849169A1 EP06708170A EP06708170A EP1849169A1 EP 1849169 A1 EP1849169 A1 EP 1849169A1 EP 06708170 A EP06708170 A EP 06708170A EP 06708170 A EP06708170 A EP 06708170A EP 1849169 A1 EP1849169 A1 EP 1849169A1
Authority
EP
European Patent Office
Prior art keywords
core
shield
transformer
transformer core
interior
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
EP06708170A
Other languages
German (de)
French (fr)
Other versions
EP1849169B1 (en
Inventor
Christoph PLÖTNER
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1849169A1 publication Critical patent/EP1849169A1/en
Application granted granted Critical
Publication of EP1849169B1 publication Critical patent/EP1849169B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets

Definitions

  • the invention relates to a transformer core with a core interior of magnetizable material.
  • Transformer core is any magnetizable core for the intended use in an electromagnetic machine, such. a transformer or a choke.
  • the core of the invention in the sense of the present invention is the magnetizable part of the transformer core for guiding the magnetic flux.
  • DE 36 27 890 A1 describes a transformer with a magnetic shield and a method for producing such a shield.
  • the transformer has a three-legged lamination stack with transformer windings wound around the middle limb, wherein the magnetic armature is wound on the armature core
  • Shield consists of a copper shorting strip, which is guided transversely to the longitudinal direction of the leg around the laminated core and the windings.
  • DE 39 40 025 Al discloses a shield ⁇ winding transformer for magnetizable material. The shielding of the invention is between two
  • a disadvantage of this known from the prior art windings that although external disturbances can be prevented to the entire coil body, that are not magnetic leakage fluxes page within the bobbin, in particular on the core outer ⁇ prevented.
  • the object of the present invention is therefore to reduce or prevent the magnetic stray fluxes acting on the outside of the core interior and, if present, inside the tensioning device on the outside of the core interior.
  • the waste Shielding has a layered structure with at least one magnetizable material.
  • layered magnetizable materials such as electrical sheets, conducts the leakage flux into the sheets and causes little power loss in the laminated shield. Due to the guidance of the leakage magnetic fluxes ⁇ ⁇ no eddy currents are in the outside of the core inside generated, so that the power losses and local He ⁇ ⁇ ⁇ rmungen within these ranges greatly reduced relate be hung as completely avoided.
  • the power losses within the shield and localized heating are ge ⁇ genüber a transformer core according to the invention without shielding greatly reduced.
  • a device for generating an axial pressure on the core inside is arranged between the core interior and the shielding from ⁇ .
  • the use of a ge ⁇ coated core inside requires permanent maintenance of an axial pressure to the layered Kernin- nere.
  • These devices which are usually also referred to as tensioning devices, are arranged directly on the core of the core. Because of the need for high strength, these devices for generating axial pressure often consist of electrically and magnetically conductive materials, such as steel or other metallic sheets.
  • Within these clamping devices for generating an axial pressure locally high heating and power losses are caused by induced eddy currents in magnetic interference.
  • the clamping device is constructed of laminated metals, which - like theêtbe ⁇ rich core of the inside - are also divided into segments. This minimizes the maximum according to the prior art possible power of the transformer using the ⁇ described transformer core.
  • the shield is divided into segments.
  • the subdivision of the shield into segments permits a rapid and modular construction of the shield around the core interior or around the device for exerting the axial pressure.
  • the segmental structure of Abschir ⁇ tion also allowed to make a reasonable directly to the transformer fit shielding.
  • the risk of large local overheating of the device for generating the axial pressure and / or the outer core regions is prevented.
  • transformers with larger stray fluxes can be built more reliably than before.
  • the power losses when using a transformer core according to the invention are substantially reduced.
  • the length of the Abschir ⁇ mung in the axial direction is equal to or greater than an intended coil bobbin around the transformer core.
  • the shield may be arranged along the entire transformer leg, and so also the negative stray magnetic influences on the final yoke and other optional structural elements cute re ⁇ .
  • the orientation of the layered structure of the shield parallel to a possible Lich stray flux direction of a magnetic field is aligned. The orientation may be aligned parallel with respect to the generated within the transformer or with respect to an external possible leakage flux direction. The magnetic flux is ideally guided along the stratification and thus led away at the tensioning device or from the outer regions of the inner core.
  • a preferred feature of the invention is that the core interior is composed of layered core segments and the
  • Shield along the outside of the outermost core segment or along the device for generating an axial pressure is arranged.
  • the shield is fixed together with the core inside with a - usually insulating bandage.
  • a - usually insulating bandage In ⁇ within the bandage the shield with a Isolierma ⁇ material - for example, pressboard or cast resin - additionally fixed and electrically insulated.
  • the magnetizable material of the shield is an electrical sheet, as used in electromagnetic devices.
  • Figure 1 is a schematic sectional view of the transformer core according to the invention with zwie surrounding bobbin.
  • FIG. 2a Schematic cross-sectional sectional view of the transformer core according to the invention with two integral shields
  • Fig. 2b Schematic cross-sectional drawing of the transformer core according to the invention with two depending Weil ⁇ segmentally constructed shields.
  • FIG. 1 shows a schematic sectional view of the transformer core 1 according to the invention along the axial orientation of the transformer core 1.
  • a tensioning device 3 for generating an axial pressure on the core 2 and the bobbins 5 is visible.
  • a shield 4 is arranged, which is an intrusion of the scattering ⁇ flow - caused by the electrical currents in the surrounding bobbins 5 - in the inner core 2 and in the clamping device 3.
  • Kerninneres 2, jig 3 and the shield 4 with fixed a bandage 6.
  • the bandage 6 meets - with appropriate choice of material - as an insulating sheathing around the inner core 2 another function.
  • the longitudinal axis along the transformer core 1 is shown as gestri ⁇ smiled line.
  • the figures Fig. 2a and Fig. 2b respectively show a cross-section of the transformer core according to the invention 1.
  • an interior core 2 encloses Spannvorrich- tung 3 clearly visible.
  • the clamping device 3 can in the radial direction either continuous or segmented been expanding its ⁇ .
  • the shield 4 connects to the clamping device 3 according to the figures Fig. 2a and 2b.
  • the shield 4 may have a layered structure along the entire surface to be shielded.
  • FIG. 2 b a segment-wise construction of layered elements of the shield 4 with respect to a modular structure of the transformer is shown.
  • the shield 4 Via an outer bandage 6, the shield 4, which encloses either the transformer core 1 completely but at least along the orientation of the yoke, the shield 4 is fixed.
  • the fixation of the shield 4 to the inner core 2 may alternatively via fasteners to the inner core 2, with the clamping device 3 or with other fasteners (not shown). Fixation of the shielding 4 by means of the material consolidation of the shielding under tension or pressure around the inner core 2 or the tensioning device 3 is also possible.

Abstract

The invention relates to a transformer core comprising a core interior consisting of a magnetisable material. Magnetic leakage fluxes create eddy currents in the outer core regions, which lead to power losses and local overheating. Said leakage fluxes are channelled and conducted away from the outer region of the core interior by shielding, which partially encompasses the core interior and consists of at least one layered magnetisable material. This permits the formation of eddy currents in the core interior to be significantly reduced and thus prevents local overheating of the transformer core and power losses.

Description

Transformatorkern mit magnetischer AbschirmungTransformer core with magnetic shielding
Die Erfindung betrifft einen Transformatorkern mit einem Kerninneren aus magnetisierbarem Material.The invention relates to a transformer core with a core interior of magnetizable material.
Beim Betrieb von Transformatoren entstehen neben dem im Kern kanalisierten magnetischen Hauptfluss auch magnetische Streu- flüsse, die zum Teil senkrecht in die Schenkel des Transfor¬ matorkerns eintreten. Sehr häufig ist um die Außenseite des Kerninneren eine Spannvorrichtung angeordnet, die den geschichteten Kern und die den um den Kern angeordneten Spulenkörper unter axialem Druck hält.In the operation of transformers in addition to the channeled in the core main magnetic flux and magnetic stray arise fluxes entering vertically into the leg of the transfor ¬ matorkerns part. Very often, a tensioning device is arranged around the outside of the core, which holds the layered core and the coil body arranged around the core under axial pressure.
Transformatorkern im Sinne der Erfindung ist jeder magneti- sierbare Kern für die bestimmungsgemäße Verwendung in einer elektromagnetischen Maschine, wie z.B. einem Transformator oder einer Drossel. Kerninneres im Sinne der vorliegenden Er- findung ist der magnetisierbare Teil des Transformatorskerns zur Führung des magnetischen Flusses.Transformer core according to the invention is any magnetizable core for the intended use in an electromagnetic machine, such. a transformer or a choke. The core of the invention in the sense of the present invention is the magnetizable part of the transformer core for guiding the magnetic flux.
Magnetische Streuflüsse erzeugen in den äußeren Kernsegmenten und/oder in der Spannvorrichtung Wirbelströme, die zu einer beträchtlichen lokalen Erwärmung des Kerns beziehungsweise der Spannvorrichtung führen können. Bisher wird diesem Problem dadurch begegnet, dass die äußeren Kernbereiche in Seg¬ mente kleiner Breite unterteilt und durch die Verwendung von schmalen oder geschlitzten Spannvorrichtungen die Leistungs- Verluste und die lokalen Erwärmungen reduziert werden.Magnetic leakage fluxes generate eddy currents in the outer core segments and / or in the clamping device, which can lead to considerable local heating of the core or the clamping device. So far, this problem is addressed by the fact that the outer core areas divided into Seg ¬ ments small width and the use of narrow or slotted tensioning devices, the power losses and local warming can be reduced.
Nachteilig ist hierbei jedoch, dass zwar die Leistungsver¬ luste reduziert werden können, andererseits eine lokale Er- wärmung, insbesondere bei Transformatoren mit hohen Leistungen, nicht verhindert wird.The disadvantage here, however, that while the Leistungsver ¬ losses can be reduced, on the other hand, a local Er- heating, especially in transformers with high power, is not prevented.
Ebenfalls sind aus dem Stand der Technik Abschirmungen um den gesamten Spulenkörper bekannt. So beschreibt die DE 36 27 890 Al einen Transformator mit einer magnetischen Abschirmung und ein Verfahren zur Herstellung einer solchen Abschirmung. Gemäß der dortigen Erfindung weist der Transformator ein drei- schenkliges Blechpaket mit um den mittleren Schenkel gewi- ekelten Transformatorwicklungen auf, wobei die magnetischeAlso known from the prior art shields around the entire bobbin. Thus, DE 36 27 890 A1 describes a transformer with a magnetic shield and a method for producing such a shield. According to the invention there, the transformer has a three-legged lamination stack with transformer windings wound around the middle limb, wherein the magnetic armature is wound on the armature core
Abschirmung aus einem Kupferkurzschlussband besteht, das quer zur Schenkellängsrichtung um das Blechpaket und die Wicklungen geführt ist. Die DE 39 40 025 Al offenbart eine Abschirm¬ wicklung für Transformatoren aus magnetisierbarem Material. Die erfindungsgemäße Abschirmwicklung wird zwischen zweiShield consists of a copper shorting strip, which is guided transversely to the longitudinal direction of the leg around the laminated core and the windings. DE 39 40 025 Al discloses a shield ¬ winding transformer for magnetizable material. The shielding of the invention is between two
Wicklungsabschnitten eines Transformators gewickelt, wobei für die Abschirmwicklung ein magnetisierbares Material mit einer geringen Permeabilität verwendet wird. Nachteilig bei diesen aus dem Stand der Technik bekannten Wicklungen ist, dass zwar äußere Störeinflüsse auf den gesamten Spulenkörper verhindert werden, dass jedoch nicht magnetische Streuflüsse innerhalb des Spulenkörpers, insbesondere auf der Kernaußen¬ seite, unterbunden werden.Winding sections of a transformer wound, wherein the shielding coil, a magnetizable material with a low permeability is used. A disadvantage of this known from the prior art windings that although external disturbances can be prevented to the entire coil body, that are not magnetic leakage fluxes page within the bobbin, in particular on the core outer ¬ prevented.
Aufgabe der vorliegenden Erfindung ist es daher, die auf der Außenseite des Kerninneren - und falls vorhanden innerhalb der Spannvorrichtung an der Außenseite des Kerninneren - einwirkenden magnetischen Streuflüsse zu reduzieren beziehungsweise zu verhindern.The object of the present invention is therefore to reduce or prevent the magnetic stray fluxes acting on the outside of the core interior and, if present, inside the tensioning device on the outside of the core interior.
Gelöst wird die Aufgabe durch den Gegenstand des Patentan¬ spruchs 1. Vorteilhafterweise wird um das Kerninnere zumin¬ dest teilweise eine Abschirmung angeordnet, wobei die Ab- schirmung einen schichtweisen Aufbau mit mindestens einem magnetisierbaren Material aufweist. Durch die Verwendung von geschichteten magnetisierbaren Materialien, wie zum Beispiel Elektroblechen, wird der Streufluss in die Bleche geführt und verursacht in der geschichteten Abschirmung nur geringe Leistungsverluste. Aufgrund der Führung der magnetischen Streu¬ flüsse werden in der Außenseite des Kerninneren keine Wirbel¬ ströme erzeugt, so dass die Leistungsverluste und lokalen Er¬ wärmungen innerhalb dieser Bereiche stark reduziert bezie- hungsweise gänzlich vermieden werden. Die Leistungsverluste innerhalb der Abschirmung und eine lokale Erwärmung sind ge¬ genüber einem Transformatorkern ohne erfindungsgemäße Abschirmung stark reduziert.The object is achieved by the subject matter of the patent applica ¬ entitlement 1. Advantageously, around the core inside at least one shield ¬ partially arranged, the waste Shielding has a layered structure with at least one magnetizable material. The use of layered magnetizable materials, such as electrical sheets, conducts the leakage flux into the sheets and causes little power loss in the laminated shield. Due to the guidance of the leakage magnetic fluxes ¬ ¬ no eddy currents are in the outside of the core inside generated, so that the power losses and local He ¬ wärmungen within these ranges greatly reduced relate be hung as completely avoided. The power losses within the shield and localized heating are ge ¬ genüber a transformer core according to the invention without shielding greatly reduced.
Vorteilhafterweise ist zwischen dem Kerninneren und der Ab¬ schirmung eine Vorrichtung zur Erzeugung eines axialen Druckes auf das Kerninnere angeordnet. Die Verwendung eines ge¬ schichteten Kerninneren erfordert die permanente Aufrechterhaltung eines axialen Druckes auf das geschichtete Kernin- nere. Diese zumeist auch als Spannvorrichtungen bezeichneten Vorrichtungen sind unmittelbar am Kerninneren angeordnet. Aufgrund der Notwendigkeit einer hohen Festigkeit bestehen diese Vorrichtungen zur Erzeugung eines axialen Druckes häufig aus elektrisch und magnetisch leitenden Materialien, wie zum Beispiel Stahl oder anderen metallischen Blechen. Innerhalb dieser Spannvorrichtungen zur Erzeugung eines axialen Druckes werden bei magnetischen Störeinflüssen lokal hohe Erwärmungen und Leistungsverluste durch induzierte Wirbelströme hervorgerufen. Herkömmlicherweise wird die Spannvorrichtung aus geschichteten Metallen aufgebaut, die - wie die Außenbe¬ reiche des Kerninneren - zusätzlich in Segmente unterteilt sind. Dies minimiert gemäß dem Stand der Technik die maximal mögliche Leistung des Transformators unter Verwendung des be¬ schriebenen Transformatorkerns.Advantageously, a device for generating an axial pressure on the core inside is arranged between the core interior and the shielding from ¬ . The use of a ge ¬ coated core inside requires permanent maintenance of an axial pressure to the layered Kernin- nere. These devices, which are usually also referred to as tensioning devices, are arranged directly on the core of the core. Because of the need for high strength, these devices for generating axial pressure often consist of electrically and magnetically conductive materials, such as steel or other metallic sheets. Within these clamping devices for generating an axial pressure locally high heating and power losses are caused by induced eddy currents in magnetic interference. Conventionally, the clamping device is constructed of laminated metals, which - like the Außenbe ¬ rich core of the inside - are also divided into segments. This minimizes the maximum according to the prior art possible power of the transformer using the ¬ described transformer core.
Bevorzugt ist die Abschirmung in Segmente unterteilt. Die Un- terteilung der Abschirmung in Segmente erlaubt zum einen einen schnellen und modularen Aufbau der Abschirmung um das Kerninnere beziehungsweise um die Vorrichtung zur Ausübung des axialen Druckes. Der segmentenweise Aufbau der Abschir¬ mung erlaubt ebenfalls eine an den Transformator direkt ange- passte Abschirmung zu erstellen. Hierdurch wird die Gefahr großer lokaler Überhitzungen der Vorrichtung zur Erzeugung des axialen Druckes und/oder der äußeren Kernbereiche verhindert. Es können so Transformatoren mit größeren Streuflüssen sicherer als bisher gebaut werden. Ebenfalls sind die Leis- tungsverluste bei der Verwendung eines erfindungsgemäßen Transformatorkerns wesentlich reduziert.Preferably, the shield is divided into segments. The subdivision of the shield into segments on the one hand permits a rapid and modular construction of the shield around the core interior or around the device for exerting the axial pressure. The segmental structure of Abschir ¬ tion also allowed to make a reasonable directly to the transformer fit shielding. As a result, the risk of large local overheating of the device for generating the axial pressure and / or the outer core regions is prevented. In this way, transformers with larger stray fluxes can be built more reliably than before. Likewise, the power losses when using a transformer core according to the invention are substantially reduced.
Weiterhin können größere Leistungen pro Transformatorschenkel realisiert werden. Der segmentierte Aufbau der äußeren Berei- che des Kerninneren beziehungsweise der Spannvorrichtung kann bei einem erfindungsgemäßen Transformatorkern vollständig entfallen, wodurch ein wesentlich einfacherer und kostengünstigerer Aufbau des Transformators realisierbar ist.Furthermore, larger power per transformer leg can be realized. The segmented structure of the outer regions of the core interior or of the tensioning device can be completely eliminated in the case of a transformer core according to the invention, as a result of which a considerably simpler and less expensive construction of the transformer can be realized.
Erfindungsgemäß ist vorgesehen, dass die Länge der Abschir¬ mung in axialer Richtung gleich oder größer als die Länge eines vorgesehenen Spulenkörpers um den Transformatorkern ist. Im Grenzfall kann die Abschirmung entlang des gesamten Transformatorschenkels angeordnet sein und so auch die negativen magnetischen Streueinflüsse auf die abschließenden Joch und weitere gegebenenfalls vorhandenen Konstruktionselemente re¬ duzieren. Bevorzugt ist vorgesehen, dass die Orientierung des schichtweisen Aufbaus der Abschirmung parallel zu einer mög- liehen Streuflussrichtung eines Magnetfeldes ausgerichtet ist. Die Ausrichtung kann dabei hinsichtlich der innerhalb des Transformators erzeugten oder hinsichtlich einer äußeren möglichen Streuflussrichtung parallel ausgerichtet sein. Der magnetische Fluss wird idealer Weise entlang der Schichtung geführt und somit an der Spannvorrichtung beziehungsweise von den Außenbereichen des Kerninneren weggeführt.According to the invention it is provided that the length of the Abschir ¬ mung in the axial direction, the length is equal to or greater than an intended coil bobbin around the transformer core. In the limiting case the shield may be arranged along the entire transformer leg, and so also the negative stray magnetic influences on the final yoke and other optional structural elements duce re ¬. It is preferably provided that the orientation of the layered structure of the shield parallel to a possible Lich stray flux direction of a magnetic field is aligned. The orientation may be aligned parallel with respect to the generated within the transformer or with respect to an external possible leakage flux direction. The magnetic flux is ideally guided along the stratification and thus led away at the tensioning device or from the outer regions of the inner core.
Ein bevorzugtes Merkmal der Erfindung ist, dass das Kernin- nere aus geschichteten Kernsegmenten aufgebaut ist und dieA preferred feature of the invention is that the core interior is composed of layered core segments and the
Abschirmung entlang der Außenseite des äußersten Kernsegmentes oder entlang der Vorrichtung zur Erzeugung eines axialen Druckes angeordnet ist.Shield along the outside of the outermost core segment or along the device for generating an axial pressure is arranged.
Weiterhin wird die Abschirmung gemeinsam mit dem Kerninneren mit einer - normalerweise isolierenden Bandage - fixiert. In¬ nerhalb der Bandage ist die Abschirmung mit einem Isolierma¬ terial - zum Beispiel Pressspan oder Gießharz - zusätzlich fixiert und elektrisch isoliert. Idealer Weise ist das magne- tisierbare Material der Abschirmung ein Elektroblech, wie es in elektromagnetischen Geräten verwendet wird.Furthermore, the shield is fixed together with the core inside with a - usually insulating bandage. In ¬ within the bandage the shield with a Isolierma ¬ material - for example, pressboard or cast resin - additionally fixed and electrically insulated. Ideally, the magnetizable material of the shield is an electrical sheet, as used in electromagnetic devices.
Weitere vorteilhafte Ausgestaltungen sind den Ansprüchen zu entnehmen. Der Erfindungsgegenstand wird anhand der nachfol- genden Figuren eingehend erläutert. Es zeigt:Further advantageous embodiments are given in the claims. The subject invention will be explained in detail with reference to the following figures. It shows:
Fig. 1 Schematische Schnittzeichnung des erfindungsgemäßen Transformatorkerns mit zwie umliegendem Spulenkörper;Figure 1 is a schematic sectional view of the transformer core according to the invention with zwie surrounding bobbin.
Fig. 2a Schematische Querschnittsschnittzeichnung des erfindungsgemäßen Transformatorkerns mit zwei einstückigen Abschirmungen; Fig. 2b Schematische Querschnittszeichnung des erfindungsgemäßen Transformatorkerns mit zwei je¬ weils segmentweisen aufgebauten Abschirmungen.Fig. 2a Schematic cross-sectional sectional view of the transformer core according to the invention with two integral shields; Fig. 2b Schematic cross-sectional drawing of the transformer core according to the invention with two depending Weil ¬ segmentally constructed shields.
Die Figur Fig. 1 zeigt eine schematische Schnittzeichnung des erfindungsgemäßen Transformatorkerns 1 entlang der axialen Ausrichtung des Transformatorkerns 1. Entlang der Außenseite des geschichteten Kerninneren 2 ist eine Spannvorrichtung 3 zur Erzeugung eines axialen Druckes auf das Kerninnere 2 und die Spulenkörper 5 sichtbar. Um die Spannvorrichtung 3 ist eine Abschirmung 4 angeordnet, die ein Eindringen des Streu¬ flusses - hervorgerufen von den elektrischen Strömen in dem umgebenden Spulenkörpern 5 - in das Kerninnere 2 und in die Spannvorrichtung 3. Kerninneres 2, Spannvorrichtung 3 und die Abschirmung 4 werden mit einer Bandage 6 fixiert. Die Bandage 6 erfüllt - bei entsprechender Materialwahl - als isolierende Umhüllung um das Kerninnere 2 eine weitere Fuktion. Die Längsachse entlang des Transformatorkerns 1 ist als gestri¬ chelte Linie dargestellt.FIG. 1 shows a schematic sectional view of the transformer core 1 according to the invention along the axial orientation of the transformer core 1. Along the outside of the layered core 2, a tensioning device 3 for generating an axial pressure on the core 2 and the bobbins 5 is visible. To the clamping device 3, a shield 4 is arranged, which is an intrusion of the scattering ¬ flow - caused by the electrical currents in the surrounding bobbins 5 - in the inner core 2 and in the clamping device 3. Kerninneres 2, jig 3 and the shield 4 with fixed a bandage 6. The bandage 6 meets - with appropriate choice of material - as an insulating sheathing around the inner core 2 another function. The longitudinal axis along the transformer core 1 is shown as gestri ¬ smiled line.
Die Figuren Fig. 2a und Fig. 2b zeigen jeweils einen Querschnitt des erfindungsgemäßen Transformatorkerns 1. Neben dem schichtweisen Aufbau der das Kerninnere 2 bildenden Kernseg¬ mente ist eine das Kerninnere 2 umschließende Spannvorrich- tung 3 deutlich sichtbar. Die Spannvorrichtung 3 kann in radialer Richtung entweder durchgehend oder segmentiert aufge¬ baut sein. An die Spannvorrichtung 3 gemäß der Figuren Fig. 2a und 2b schließt sich die Abschirmung 4 an. Wie in der Figur Fig. 2a dargestellt, kann die Abschirmung 4 einen schichtweisen Aufbau entlang der gesamten abzuschirmenden Fläche aufweisen. Alternativ kann gemäß Figur Fig. 2b ein segmentweiser Aufbau aus geschichteten Elementen der Abschirmung 4 im Hinblick auf einen modularen Aufbau des Transforma- torkerns 1 und dessen Abschirmung vorteilhaft sein. Über eine äußere Bandage 6 wird die Abschirmung 4, die entweder den Transformatorkern 1 vollständig zumindest jedoch entlang der Ausrichtung des Joches umschließt, die Abschirmung 4 fixiert. Die Fixierung der Abschirmung 4 um das Kerninnere 2 kann alternativ über Verbindungselemente mit dem Kerninneren 2, mit der Spannvorrichtung 3 oder mit weiteren Befestigungselementen (nicht dargestellt) erfolgen. Auch eine Fixierung der Abschirmung 4 mittels der Materialfestigung der Abschirmung un- ter Zug oder Druck um das Kerninnere 2 bzw. die Spannvorrichtung 3 ist möglich. The figures Fig. 2a and Fig. 2b respectively show a cross-section of the transformer core according to the invention 1. In addition to the layered structure of the core 2 inside forming Kernseg ¬ elements is an interior core 2 encloses Spannvorrich- tung 3 clearly visible. The clamping device 3 can in the radial direction either continuous or segmented been expanding its ¬. To the clamping device 3 according to the figures Fig. 2a and 2b, the shield 4 connects. As shown in the figure Fig. 2a, the shield 4 may have a layered structure along the entire surface to be shielded. Alternatively, according to FIG. 2 b, a segment-wise construction of layered elements of the shield 4 with respect to a modular structure of the transformer is shown. torkerns 1 and its shielding be advantageous. Via an outer bandage 6, the shield 4, which encloses either the transformer core 1 completely but at least along the orientation of the yoke, the shield 4 is fixed. The fixation of the shield 4 to the inner core 2 may alternatively via fasteners to the inner core 2, with the clamping device 3 or with other fasteners (not shown). Fixation of the shielding 4 by means of the material consolidation of the shielding under tension or pressure around the inner core 2 or the tensioning device 3 is also possible.

Claims

Patentansprüche claims
1. Transformatorkern (1) mit einem Kerninneren (2) aus magne- tisierbarem Material, d a d u r c h g e k e n n z e i c h n e t , dass um das Kerninnere (2) eine Abschirmung (4) zumindest teil¬ weise angeordnet ist, wobei die Abschirmung (4) einen schichtweisen Aufbau mit mindestens einem magnetisierbaren Material aufweist.1. transformer core (1) with a core interior (2) made of magnetizable material, characterized in that around the core (2) a shield (4) at least partially ¬ is arranged, wherein the shield (4) has a layered structure with at least a magnetizable material.
2. Transformatorkern (1) nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass zwischen dem Kerninneren (2) und der Abschirmung (4) eine Vorrichtung (3) zur Erzeugung eines axialen Druckes auf das Kerninnere angeordnet ist.2. Transformer core (1) according to claim 1, characterized in that between the inner core (2) and the shield (4), a device (3) for generating an axial pressure on the core inside is arranged.
3. Transformator (1) nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , dass die Abschirmung (4) in Segmente unterteilt ist.3. Transformer (1) according to claim 1 or 2, characterized in that the shield (4) is subdivided into segments.
4. Transformatorkern (1) nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t , dass die Länge der Abschirmung (4) in axialer Richtung gleich oder größer als die axiale Länge der um den Transformatorkern (1) Spulenkörper (5) ist.4. transformer core (1) according to one of claims 1 to 3, d a d u r c h e c e n e c e in that the length of the shield (4) in the axial direction is equal to or greater than the axial length of the bobbin (5) around the transformer core (1).
5. Transformatorkern (1) nach einem der Ansprüche 1 bis 4, d a d u r c h g e k e n n z e i c h n e t , dass der schichtweise Aufbau der Abschirmung (4) parallel zu einer möglichen Streuflussrichtung eines äußeren Magnetfeldes ausgerichtet ist.5. transformer core (1) according to one of claims 1 to 4, in that a layered structure of the shield (4) is aligned parallel to a possible stray flux direction of an external magnetic field.
6. Transformatorkern (1) nach einem der Ansprüche 1 bis 5, d a d u r c h g e k e n n z e i c h n e t , dass das Kerninnere (2) mit geschichteten Kernsegmenten aufgebaut ist und die Abschirmung (4) entlang der Außenseite des äu¬ ßersten Kernsegmentes angeordnet ist.6. transformer core (1) according to one of claims 1 to 5, characterized in that the core interior (2) is constructed with layered core segments and the shield (4) is arranged along the outside of the outer ¬ first core segment.
7. Transformatorkern (1) nach einem der Ansprüche 1 bis 6, d a d u r c h g e k e n n z e i c h n e t , dass die Abschirmung (4) mittels einer Bandage (6) um die Abschirmung (4) fixiert ist.7. Transformer core (1) according to one of claims 1 to 6, characterized in that the shield (4) by means of a bandage (6) around the shield (4) is fixed.
8. Transformatorkern (1) nach einem der Ansprüche 1 bis 7, d a d u r c h g e k e n n z e i c h n e t , dass ein Isoliermaterial zwischen der Abschirmung (4) und der Bandage (6) die Abschirmung (4) fixiert.8. The transformer core according to claim 1, wherein an insulating material fixes the shield between the shield and the bandage.
9. Transformatorkern (1) nach einem der Ansprüche 1 bis 8, d a d u r c h g e k e n n z e i c h n e t , dass das magnetisierbare Material der Abschirmung (4) Elektroble- che sind ist. 9. The transformer core (1) according to claim 1, wherein the magnetizable material of the shield (4) is an electric sheet.
EP06708170.3A 2005-02-16 2006-02-10 Transformer core comprising magnetic shielding Not-in-force EP1849169B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005008302A DE102005008302B4 (en) 2005-02-16 2005-02-16 Transformer core with magnetic shielding
PCT/EP2006/050827 WO2006087294A1 (en) 2005-02-16 2006-02-10 Transformer core comprising magnetic shielding

Publications (2)

Publication Number Publication Date
EP1849169A1 true EP1849169A1 (en) 2007-10-31
EP1849169B1 EP1849169B1 (en) 2016-06-15

Family

ID=36177826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06708170.3A Not-in-force EP1849169B1 (en) 2005-02-16 2006-02-10 Transformer core comprising magnetic shielding

Country Status (10)

Country Link
EP (1) EP1849169B1 (en)
KR (1) KR101003933B1 (en)
CN (1) CN101120421A (en)
BR (1) BRPI0607872A2 (en)
CA (1) CA2597934C (en)
DE (1) DE102005008302B4 (en)
MX (1) MX2007009717A (en)
RU (1) RU2412498C2 (en)
UA (1) UA88942C2 (en)
WO (1) WO2006087294A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102163488A (en) * 2010-11-25 2011-08-24 文泽生 Amorphous oil-immersed air-core reactor with full magnetic shielding

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056162A1 (en) 2007-10-29 2009-05-07 Siemens Transformers Austria Gmbh & Co Kg Transformer core having a stray field shield
KR101407884B1 (en) * 2009-11-20 2014-06-16 미쓰비시덴키 가부시키가이샤 Transformer
CN101777416B (en) * 2010-03-15 2011-12-14 贵阳新星变压器有限公司 Rectangular fillet iron core for shell type transformer
CN106571210B (en) * 2015-10-09 2018-10-12 特变电工沈阳变压器集团有限公司 A kind of 110kV transformers
JP6857494B2 (en) * 2016-12-26 2021-04-14 株式会社日立産機システム Static induction electric device
DE102020215178A1 (en) 2020-12-02 2022-06-02 BSH Hausgeräte GmbH Transformer for a switching power supply
EP4102522A4 (en) 2021-04-19 2023-09-27 Bilyi Leonid Adamovych Three-phase transformer

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277434B (en) * 1963-09-10 1968-09-12 Westinghouse Electric Corp Magnetic and corona shield for electrical induction devices
DE1237677B (en) * 1964-08-01 1967-03-30 Siemens Ag Magnetic shield arrangement for layered iron cores of transformers and inductors
US3464041A (en) * 1968-03-06 1969-08-26 Allis Chalmers Mfg Co Electrical transformer having leakage flux shield
CH484499A (en) * 1968-06-29 1970-01-15 Bbc Brown Boveri & Cie Induction device, in particular transformer or choke coil
US3962661A (en) * 1975-04-22 1976-06-08 International Telephone And Telegraph Corporation Magnetically shunted current transformer
NL7904379A (en) * 1979-06-05 1980-12-09 Philips Nv TRANSFORMER.
JPS5793512A (en) * 1980-12-03 1982-06-10 Meidensha Electric Mfg Co Ltd Fixation of bound iron core and winding
DE3141972A1 (en) * 1981-10-22 1983-05-11 Transformatoren Union Ag, 7000 Stuttgart Iron core for electrical inductors
JPS61259512A (en) * 1985-05-14 1986-11-17 Fuji Electric Co Ltd Radial block core
DE3627890A1 (en) * 1986-08-16 1988-02-25 Philips Patentverwaltung Transformer having a magnetic screen, and a method for producing such a screen
DE3940025A1 (en) * 1989-12-04 1991-06-06 Michael Riedel Transformatoren Mains transformer with interwinding magnetic screen - uses isolating layer of ferrite or magnetic glass
DE59009514D1 (en) * 1990-09-27 1995-09-14 Siemens Ag Hysteresis reduction method and electromechanical transducer with hysteresis reduction.
DE10350262A1 (en) * 2002-12-16 2004-07-22 Siemens Ag Österreich Transformer having two windings e.g. for power transformer, has flexible ferrite polymer foil applied over outer winding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006087294A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102163488A (en) * 2010-11-25 2011-08-24 文泽生 Amorphous oil-immersed air-core reactor with full magnetic shielding

Also Published As

Publication number Publication date
DE102005008302A1 (en) 2006-08-24
CN101120421A (en) 2008-02-06
MX2007009717A (en) 2007-09-26
CA2597934C (en) 2015-04-14
RU2007134373A (en) 2009-03-27
CA2597934A1 (en) 2006-08-24
RU2412498C2 (en) 2011-02-20
DE102005008302B4 (en) 2010-09-02
UA88942C2 (en) 2009-12-10
BRPI0607872A2 (en) 2009-10-20
KR101003933B1 (en) 2010-12-30
EP1849169B1 (en) 2016-06-15
KR20070103052A (en) 2007-10-22
WO2006087294A1 (en) 2006-08-24

Similar Documents

Publication Publication Date Title
EP1849169B1 (en) Transformer core comprising magnetic shielding
DE2915791C2 (en) Power transformer or choke
DE10260246B4 (en) Coil arrangement with variable inductance
DE19934767A1 (en) Magnetic component
DE102005047451A1 (en) synchronous machine
DE102004025076B4 (en) Coil arrangement and method for its production
DE3029416A1 (en) POWERFUL TRANSFORMER OR THROTTLE
EP2546842A2 (en) Coil for limiting energy
EP1864303B1 (en) Magnetic core
DE202005008726U1 (en) Dispersive transformer e.g. for DC-DC converter power pack, has one part of winding enclosing two limbs, of which one has an air-gap
DE2953100C1 (en) High voltage transformation and rectifier device
DE4208706C2 (en) Ignition coil for an ignition system of an internal combustion engine
DE3507316C2 (en)
EP2975618B1 (en) Core for an electrical induction device
DE3744122A1 (en) Reversed transformer
EP2040512B1 (en) Device and method for inductive heating of an electrically conductive workpiece
EP0821375A1 (en) Use of a suppression choke in switching power supplies
WO2008125288A1 (en) Electric component with winding and tapping
AT243915B (en) Electromagnetic coil for transformers, chokes, etc. like
WO2024074465A1 (en) Method for producing a cofe alloy for a laminated core
EP4189709A1 (en) Transformer
DE2800750A1 (en) X=ray generator HV transformer iron core - has magnetically soft metal sheet coiled around longitudinal axis to form inter-yoke limbs with circular cross=section
EP0602528A1 (en) Transformer
DE2653591A1 (en) HIGH PERFORMANCE TRANSFORMER FOR ULTRA HIGH VOLTAGE
DE102022119155A1 (en) MAGNETIC CORE WITH PROTECTIVE HOUSING

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

17P Request for examination filed

Effective date: 20070730

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20121008

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160108

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 806853

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160715

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502006014996

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160615

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

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

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

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160916

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

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161015

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

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

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161017

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502006014996

Country of ref document: DE

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: 20170316

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

Ref country code: BE

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

Effective date: 20170228

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

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

Ref country code: DE

Payment date: 20170419

Year of fee payment: 12

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

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: LI

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

Effective date: 20170228

Ref country code: CH

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

Effective date: 20170228

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20171031

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

Ref country code: LU

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

Effective date: 20170210

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

Ref country code: FR

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

Effective date: 20170228

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170228

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

Ref country code: IE

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

Effective date: 20170210

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 806853

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170210

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

Ref country code: GB

Payment date: 20180212

Year of fee payment: 13

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: 20170210

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

Ref country code: SE

Payment date: 20180208

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502006014996

Country of ref document: DE

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: 20180901

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20060210

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

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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

Effective date: 20190210

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

Ref country code: SE

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

Effective date: 20190211

Ref country code: CY

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

Effective date: 20160615

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

Ref country code: GB

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

Effective date: 20190210

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160615