EP1315183A2 - Winding for a transformer or a coil - Google Patents

Winding for a transformer or a coil Download PDF

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Publication number
EP1315183A2
EP1315183A2 EP02024178A EP02024178A EP1315183A2 EP 1315183 A2 EP1315183 A2 EP 1315183A2 EP 02024178 A EP02024178 A EP 02024178A EP 02024178 A EP02024178 A EP 02024178A EP 1315183 A2 EP1315183 A2 EP 1315183A2
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EP
European Patent Office
Prior art keywords
winding
layer
insulating
insulating layer
thickness
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
EP02024178A
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German (de)
French (fr)
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EP1315183A3 (en
EP1315183B1 (en
Inventor
Benjamin Dipl.-Ing. Weber
Karl Zillmann
Thomas J. Lanoue
Hans-Jürgen Buss
Harald Younger
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ABB Technology AG
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ABB T&D Technology AG
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Publication of EP1315183A2 publication Critical patent/EP1315183A2/en
Publication of EP1315183A3 publication Critical patent/EP1315183A3/en
Application granted granted Critical
Publication of EP1315183B1 publication Critical patent/EP1315183B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/30Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2847Sheets; Strips
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/323Insulation between winding turns, between winding layers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor

Definitions

  • the invention relates to a winding for a transformer or a coil with a band-shaped electrical conductor and with an insulating material layer of band-shaped Insulation material that winds together around a winding core are wound, the individual turns of the winding a predetermined Have winding angles with respect to the winding axis of the winding core and are arranged with each other with partial overlap, and wherein between an insulating layer is interposed between two radially adjacent layers of turns is.
  • the turns are usually wrapped close together in the axial direction and at least one Layer formed by turns.
  • the object of the invention is characterized in that the local voltage differences or a voltage difference curve between the two relevant radially adjacent layers in the direction of Winding axis is determined and that the thickness of the insulating layer locally to each voltage difference determined there is adapted.
  • the insulation layer is therefore not in accordance the previously known prior art with an equally large layer thickness designed, but the thickness is related to the voltage difference between the adapted radially adjacent rows. Accordingly, the axial Places where the voltage difference is comparatively small, insulation material be saved. This also ensures that the transformer or the coil overall has a comparatively better surge voltage resistance between the layers.
  • An advantageous embodiment of the subject matter of the invention is that at the arrangement of two radially adjacent insulating layers the calculated total thickness these two insulating layers are approximately the same at each axial location Has thickness.
  • the first layer 18 of windings is the layer that is directly around the winding core 10 is wound.
  • the band-shaped insulation material 16 is included arranged such that it lies between the winding core 10 and the conductor 14.
  • the individual turns of the first layer 18 are at a certain angle 20 inclined with respect to the winding axis 12.
  • each turn is one certain amount parallel to the direction of the winding axis 12 compared to the previous one Winding arranged offset, such that a next following winding has a partial overlap with the previous turn.
  • a second layer 22 of turns is wound radially around the first layer 18.
  • an insulation material of a certain width with a predefinable one Feed can be wound continuously. It is not essential necessary that at the first, i.e. thinnest stage, a closed one Layer arises, d. H. the feed can be larger than the width of the winding Material, if the inserted winding insulation is already used for the insulation sufficient between two layers.
  • the winding insulation is particularly that tape-shaped insulation material layer, which is applied to the electrical conductor or is placed on the conductor as a strip material or as a film. Will the If the feed is halved, there is an insulating layer of double thickness. In this way a step-like isolation can also be achieved without the isolation process must be interrupted in the meantime.
  • FIG. 2 shows a first insulating wedge 40 opposite a second insulating wedge 42 lies and which are used in principle as the first 26 or second insulating layer 32 could.
  • first insulating wedge 40 opposite a second insulating wedge 42 lies and which are used in principle as the first 26 or second insulating layer 32 could.
  • first 26 or second insulating layer 32 could be used in principle as the first 26 or second insulating layer 32 could.
  • only the basic structure and the effect of Arrangement of two insulating wedges 40, 42 are shown.
  • the dimensions or the proportions in this figure are not to scale and also not the representation comparable to Fig. 1.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Insulating Of Coils (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

The arrangement has a ribbon electrical conductor and a ribbon insulating layer commonly wound on a core with individual windings having a defined angle to the core's winding axis and each other with partial overlapping and insulation between radially adjacent layers. Local voltage differences or a voltage differential profile between layers in the winding axis direction are/is determined and the insulating layer thickness adapted accordingly. <??>The arrangement has a ribbon electrical conductor and an insulating layer of ribbon material commonly wound on a core with individual windings having a defined angle to the core's winding axis and to each other with partial overlapping and an insulating layer (26,32) between two radially adjacent layers (18,22;22,30). Local voltage differences or a voltage differential profile between the layers in the direction of the winding axis are/is determined and the thickness of the insulating layer is locally adapted to the detected voltage difference.

Description

Die Erfindung betrifft eine Wicklung für einen Transformator oder eine Spule mit einem bandförmigen elektrischen Leiter und mit einer Isoliermaterialschicht aus bandförmigen Isolationsmaterial, die gemeinsam zu Windungen um einen Wicklungskern gewickelt sind, wobei die einzelnen Windungen der Wicklung einen vorgegebenen Wicklungswinkel gegenüber der Wicklungsachse des Wicklungskerns aufweisen und zueinander mit teilweiser Überlappung angeordnet sind, und wobei zwischen zwei radial benachbarten Lagen von Windungen eine Isolierschicht zwischengefügt ist.The invention relates to a winding for a transformer or a coil with a band-shaped electrical conductor and with an insulating material layer of band-shaped Insulation material that winds together around a winding core are wound, the individual turns of the winding a predetermined Have winding angles with respect to the winding axis of the winding core and are arranged with each other with partial overlap, and wherein between an insulating layer is interposed between two radially adjacent layers of turns is.

Bei derartigen, allgemein bekannten Wicklungen werden die Windungen üblicherweise in axialer Richtung dicht nebeneinander liegend gewickelt und wenigstens eine Lage von Windungen gebildet.In such well-known windings, the turns are usually wrapped close together in the axial direction and at least one Layer formed by turns.

Häufig werden aber auch mehrere Lagen radial aneinander gefügt und bilden einen mehrlagigen Transformator oder eine mehrlagige Spule. Im Falle von mehreren Lagen von Windungen ist häufig zwischen zwei benachbarten Lagen jeweils eine Isolierschicht ein- beziehungsweise zwischengefügt. Diese Isolierschicht verhindert Spannungsüberschläge zwischen den Lagen und ist demgemäß auf die größte vorkommende Spannungsdifferenz zwischen zwei Lagen ausgelegt. Frequently, however, several layers are joined together radially and form one multi-layer transformer or a multi-layer coil. In the case of several layers Of turns there is often an insulating layer between two adjacent layers inserted or interposed. This insulating layer prevents Voltage flashovers between the layers and is accordingly the largest occurring Voltage difference between two layers.

Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung, eine Wicklung für einen Transformator oder eine Spule anzugeben, bei der lsolationsmater eingespart werden kann und bei der zugleich eine ausreichende Spannungsfestigkeit erreicht wird, insbesondere eine gute Stoßspannungsfestigkeit zwischen zwei radial benachbarten Lagen von Windungen.Starting from this prior art, it is an object of the invention to provide a winding to specify for a transformer or a coil at the insulation mat can be saved and at the same time sufficient voltage resistance is achieved, in particular a good surge voltage resistance between two radial adjacent layers of turns.

Die Aufgabe wird erfindungsgemäß gelöst durch eine Wicklung für einen Transformator oder eine Spule mit den in Anspruch 1 genannten Merkmalen.The object is achieved according to the invention by a winding for a transformer or a coil with the features mentioned in claim 1.

Demgemäß ist der erfindungsgemäße Gegenstand dadurch gekennzeichnet, daß die örtliche Spannungsdifferenzen beziehungsweise ein Spannungsdifferenzenverlauf zwischen den zwei betreffenden radial benachbarten Lagen in Richtung der Wicklungsachse ermittelt ist und daß die Dicke der Isolierschicht örtlich jeweils an die dort ermittelte Spannungsdifferenz angepaßt ist. Die Isolierschicht ist also nicht gemäß dem bisher bekannten Stand der Technik mit einer gleichgroßen Schichtdicke ausgestaltet, sondern die Dicke ist auf die Spannungsdifferenz zwischen den betreffenden radial benachbarten Reihen angepaßt. Dementsprechend kann an den axialen Stellen, an denen die Spannungsdifferenz vergleichsweise gering ist, Isolationsmaterial eingespart werden. Zudem wird hiermit erreicht, daß der Transformator bzw. die Spule insgesamt eine vergleichsweise bessere Stoßspannungsfestigkeit zwischen den Lagen aufweist.Accordingly, the object of the invention is characterized in that the local voltage differences or a voltage difference curve between the two relevant radially adjacent layers in the direction of Winding axis is determined and that the thickness of the insulating layer locally to each voltage difference determined there is adapted. The insulation layer is therefore not in accordance the previously known prior art with an equally large layer thickness designed, but the thickness is related to the voltage difference between the adapted radially adjacent rows. Accordingly, the axial Places where the voltage difference is comparatively small, insulation material be saved. This also ensures that the transformer or the coil overall has a comparatively better surge voltage resistance between the layers.

Eine vorteilhafte Ausgestaltung des Erfindungsgegenstands besteht darin, daß bei der Anordnung zweier radial benachbarter Isolierschichten die rechnerische Gesamtdicke dieser zwei Isolierschichten an jeder axialen Stelle in etwa die gleiche Dicke aufweist. Mit dieser Ausgestaltung wird vorteilhafterweise erreicht, daß die durch die unterschiedlichen Isolierschichtdicken resultierenden verschiedenen Außendurchmesser einer Lage durch das erfindungsgemäße Profil einer weiteren Isolierschicht zwischen der Lage und einer nächst folgenden Lage wieder ausgeglichen ist und derart ein insgesamt einheitlicher Außendurchmesser des Transformators bzw. der Spule erreicht ist. An advantageous embodiment of the subject matter of the invention is that at the arrangement of two radially adjacent insulating layers the calculated total thickness these two insulating layers are approximately the same at each axial location Has thickness. With this configuration it is advantageously achieved that the different outer diameters resulting from the different insulation layer thicknesses a layer through the profile of another insulating layer according to the invention balanced between the location and a next location is and such an overall uniform outer diameter of the transformer or the coil is reached.

Eine günstige Ausgestaltung des erfindungsgemäßen Gegenstandes sieht vor, daß die Dickenänderung der Isolierschicht in axialer Richtung kontinuierlich ausgestaltet ist. Auf diese Weise entsteht in etwa ein keilförmiges Profil der Isolierschicht, für den Fall, daß das Schnittbild durch die Wicklungsachse betrachtet wird. Es ist aber ohne weiteres denkbar, daß ein im Schnittbild sägezahnformiges oder wolliges Profil vorgesehen ist, beispielsweise dann, wenn zwei Spulen direkt nebeneinander angeordnet sind.A favorable embodiment of the object of the invention provides that the change in thickness of the insulating layer is designed continuously in the axial direction is. In this way, a wedge-shaped profile of the insulating layer is created for the Case that the sectional view is viewed through the winding axis. But it is without further conceivable that a sawtooth-shaped or woolly profile is provided in the sectional view is, for example, when two coils are arranged directly next to each other are.

Besonders vorteilhaft ist es jedoch, wenn die Dickenänderung der Isolierschicht in axialer Richtung stufenförmig ausgestaltet ist. Das heißt in axialer Richtung betrachtet, ändert sich die Dicke der Isolierschicht sprunghaft in Stufen, also diskontinuierlich, ohne das dies für die Spannungsfestigkeit nachteilig ist. Zudem kann die Produktion der Isolierschicht bei dieser Ausgestaltung wesentlich einfacher erfolgen und das üblicherweise bandförmige Isoliermaterial Lage für Lage zu der Isolierschicht gewickelt werden.However, it is particularly advantageous if the change in thickness of the insulating layer in axial direction is stepped. That is, viewed in the axial direction, the thickness of the insulating layer changes in steps, i.e. discontinuously, without this being disadvantageous for the dielectric strength. Production can also the insulating layer in this embodiment is much easier and the usually band-shaped insulating material layer by layer to the insulating layer be wrapped.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.Further advantageous embodiments of the invention are in the dependent claims specified.

Anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels sollen die Erfindung, eine vorteilhafte Ausgestaltung und Verbesserungen der Erfindung, sowie besondere Vorteile der Erfindung näher erläutert und beschrieben werden.Using an exemplary embodiment shown in the drawings, the invention, an advantageous embodiment and improvements of the invention, and Particular advantages of the invention are explained and described in more detail.

Es zeigen:

Fig. 1
eine Transformatorwicklung mit drei Lagen und
Fig. 2
zwei sich gegenüberliegende Isolierschichten.
Show it:
Fig. 1
a transformer winding with three layers and
Fig. 2
two opposite layers of insulation.

In Fig. 1 ist eine dreilagige Wicklung eines Transformators teilweise dargestellt Die Wicklung ist um einen Wicklungskern 10 mit einer Wicklungsachse 12 gewickelt Die Wicklung ist aus einem bandförmigen, elektrischen Leiter 14, der mit einem bandförmigen Isolationsmaterial 16 beschichtet ist, geformt. Alternativ hierzu kann das bandförmige Isolationsmaterial 16 auch aus einer bandförmigen Folie bestehen. Zudem ist es unerheblich, ob der elektrische Leiter 14 mit dem Isolationsmaterial beschichtet ist, oder ob das Isolationsmaterial als eigenes Band zusammen mit dem elektrischen Leiter 14 zu der Wicklung geformt wird.In Fig. 1, a three-layer winding of a transformer is partially shown The winding is wound around a winding core 10 with a winding axis 12 Winding is made of a ribbon-shaped electrical conductor 14 which is connected to a ribbon-shaped Insulation material 16 is coated, shaped. Alternatively, it can band-shaped insulation material 16 also consist of a band-shaped film. moreover it is irrelevant whether the electrical conductor 14 is coated with the insulation material or whether the insulation material as a separate band together with the electrical conductor 14 is formed into the winding.

Als erste Lage 18 von Windungen soll diejenige Lage bezeichnet sein, die direkt um den Wicklungskern 10 gewickelt ist. Das bandförmige Isolationsmaterial 16 ist dabei derart angeordnet, daß es zwischen dem Wicklungskern 10 und dem Leiter 14 liegt. Die einzelnen Windungen der ersten Lage 18 sind um einen bestimmten Winkel 20 gegenüber der Wicklungsachse 12 geneigt. Außerdem ist jede Windung um einen bestimmten Betrag parallel zur Richtung der Wicklungsachse 12 gegenüber der vorherigen Wicklung versetzt angeordnet, derart daß eine nächst folgende Wicklung eine teilweise Überlappung mit der vorherigen Windung aufweist. Eine zweite Lage 22 von Windungen ist radial um die erste Lage 18 gewickelt. Der Wicklungsaufbau der zweiten Lage 22 entspricht im wesentlichen dem Wicklungsaufbau der ersten Lage 18, so daß auch hier der elektrische Leiter 14 und das Isolationsmaterial 16 in Form einer Anordnung Windung an Windung nebeneinander mit teilweiser Überlappung ausgestaltet sind. Die axiale Orientierung der Überlappungen der ersten Lage 18 bzw. der zweiten Lage 22 ist so gewählt, daß sie an der gleichen axialen Stelle der Wicklungsachse 12 zu liegen kommen. Die Art der Überlappung in der zweiten Lage 22 ist so gewählt, daß ein Wicklungswinkel 24 der zweiten Lage 22 dem Betrag des bestimmten Winkels 20 entspricht, jedoch mit einer negativen Winkelorientierung. Das heißt mathematisch gesehen entspricht der Wicklungswinkel 24 einem Winkel von 180° abzüglich des bestimmten Winkels 20, sofern die Wicklungsachse 12 als Nullwinkel angesehen wird.The first layer 18 of windings is the layer that is directly around the winding core 10 is wound. The band-shaped insulation material 16 is included arranged such that it lies between the winding core 10 and the conductor 14. The individual turns of the first layer 18 are at a certain angle 20 inclined with respect to the winding axis 12. In addition, each turn is one certain amount parallel to the direction of the winding axis 12 compared to the previous one Winding arranged offset, such that a next following winding has a partial overlap with the previous turn. A second layer 22 of turns is wound radially around the first layer 18. The winding structure the second layer 22 corresponds essentially to the winding structure of the first Layer 18, so that here, too, the electrical conductor 14 and the insulation material 16 in Form of an arrangement turn by turn side by side with partial overlap are designed. The axial orientation of the overlaps of the first layer 18 or the second layer 22 is selected so that it is in the same axial position the winding axis 12 come to rest. The type of overlap in the second Layer 22 is selected so that a winding angle 24 of the second layer 22 is the amount corresponds to the determined angle 20, but with a negative angle orientation. Mathematically speaking, the winding angle 24 corresponds to one Angle of 180 ° minus the specified angle 20, provided the winding axis 12 is regarded as the zero angle.

Zwischen der zweiten Lage 22 und der ersten Lage 18 ist eine erste Isolationsschicht 26 angeordnet, die in dieser Ansicht in etwa ein keilförmiges Schnittbild hat. Dabei ist die erste Ecke des Keils die den spitzen Winkel aufweist, an einem ersten Ende der Wicklungsachse 12 und die der ersten Ecke entgegengesetzt liegende breite Seite des Keils ist an einem zweiten Ende der Wicklungsachse 12 angeordnet. Durch das Zwischenfügen der ersten Isolierschicht 26 sind die beiden Lagen 18, 22 nicht exakt parallel zueinander, sondern bilden einen spitzen Winkel miteinander, der sich aus der Gestaltung der ersten Isolierschicht 26 ergibt. Die der zweiten Lage 22 zugewandte Seite der Isolierschicht 26 weist mehrere Stufen 28 auf. Die Breite einer derartigen Stufe entspricht in diesem Beispiel jeweils der dreifachen Breite des elektrischen Leiters 14. Der Vorteil einer derartig ausgestalteten ersten Isolierschicht 26 liegt darin, daß deren Herstellung in besonders einfacher Weise erfolgen kann.There is a first insulation layer between the second layer 22 and the first layer 18 26 arranged, which in this view has an approximately wedge-shaped sectional view. It is the first corner of the wedge, which has the acute angle, at a first end of the Winding axis 12 and the wide side opposite the first corner the wedge is arranged at a second end of the winding axis 12. By the The two layers 18, 22 are not exact between the first insulating layer 26 parallel to each other, but form an acute angle with each other that is made up of the design of the first insulating layer 26 results. The one facing the second layer 22 The side of the insulating layer 26 has a plurality of steps 28. The width of such In this example, the level corresponds to three times the width of the electrical one Conductor 14. The advantage of a first insulating layer 26 configured in this way is that they can be produced in a particularly simple manner.

Das Isoliermaterial zur Herstellung der ersten Isolierschicht 26 liegt üblicherweise ebenfalls bandförmig vor. Die Breite des zu verwendenden Isoliermaterials ist in allgemein bekannter Weise aus dessen Dicke, dem zu füllenden Querschnitt und der Windungszahl ermittelbar. In diesem Beispiel soll dann mit der Wicklung der ersten Isolierschicht 26 an dem ersten Ende der Wicklungsachse 12 und die erste Lage 18 begonnen werden. Das bandförmige Isoliermaterial kann jetzt in üblicher Weise zum Beispiel in der für die Windungen beschriebene Weise, zwischen dem ersten und dem zweiten Ende der ersten Lage 18 um diese gewickelt werden, bis die gewünschte Isolierschichtdicke einer ersten Stufe der Stufen 28 erreicht ist. Sodann wird der Bereich der ersten Stufe nicht weiter umwickelt, sondern die Umwicklung mit bandförmigem Isoliermaterial lediglich im verbleibenden axialen Bereich der ersten Lage 18 gewickelt, bis die gewünschte Isolierschichtdicke einer zweiten Stufe der Stufen 28 erreicht ist. Derart kann Stufe um Stufe eine höhere Schichtdicke erzielt werden, bis die letzte und damit dickste Stufe erreicht ist.The insulating material for producing the first insulating layer 26 is usually located also in band form. The width of the insulating material to be used is general known manner from its thickness, the cross section to be filled and the Number of turns can be determined. In this example, the winding of the first Insulating layer 26 at the first end of the winding axis 12 and the first layer 18 be started. The ribbon-shaped insulating material can now be used in the usual way Example in the manner described for the turns, between the first and the second end of the first layer 18 are wrapped around it until the desired one Insulation layer thickness of a first stage of stages 28 is reached. thereupon the area of the first stage is no longer wrapped, but the wrapping with band-shaped insulating material only in the remaining axial area of the first Layer 18 wound until the desired insulation layer thickness of a second stage Levels 28 is reached. In this way, a higher layer thickness can be achieved step by step until the last and therefore thickest step is reached.

Alternativ hierzu kann ein Isolationsmaterial einer bestimmten Breite mit einem vorgebbaren Vorschub kontinuierlich gewickelt werden. Es ist dabei nicht unbedingt notwendig, daß bei der ersten, das heißt dünnsten Stufe bereits eine geschlossene Schicht entsteht, d. h. der Vorschub kann größer sein als die Breite des zu wickelnden Materials, wenn die eingebrachte Windungsisolation bereits auch für die Isolation zwischen zwei Lagen ausreicht. Die Windungsisolation ist insbesondere die bandförmigen Isolationsmaterialschicht, welche auf den elektrischen Leiter aufgebracht oder als Bandmaterial oder als Folie auf den Leiter aufgelegt ist. Wird der Vorschub halbiert, ergibt sich eine Isolierschicht mit doppelter Dicke. Auf diese Weise kann ebenfalls eine stufenförmige Isolation erreicht werden, ohne daß der Isoliervorgang zwischenzeitlich unterbrochen werden muß.As an alternative to this, an insulation material of a certain width with a predefinable one Feed can be wound continuously. It is not essential necessary that at the first, i.e. thinnest stage, a closed one Layer arises, d. H. the feed can be larger than the width of the winding Material, if the inserted winding insulation is already used for the insulation sufficient between two layers. The winding insulation is particularly that tape-shaped insulation material layer, which is applied to the electrical conductor or is placed on the conductor as a strip material or as a film. Will the If the feed is halved, there is an insulating layer of double thickness. In this way a step-like isolation can also be achieved without the isolation process must be interrupted in the meantime.

In der Fig. 1 ist noch eine dritte Lage 30 gezeigt. Diese ist vergleichbar mit der ersten Lage 18 aufgebaut und schließt sich in radialer Richtung gesehen an die zweite Lage 22 an. Zwischen der dritten Lage 30 und der zweiten Lage 22 ist eine zweite Isolierschicht 32 angeordnet. Diese ist im wesentlichen wie die erste Isolierschicht 26 ausgestaltet. Jedoch weist die Ecke mit dem spitzen Winkel der keilförmigen zweiten Isolierschicht 32 zum anderen Ende der Wicklungsachse 12 als die erste Ecke der ersten Isolierschicht 26. Die Lage und die Ausgestaltung der ersten Isolierschicht 26 sowie der zweiten Isolierschicht 32 sind so gewählt, daß die radial äußere Seite der dritten Lage 30 genau parallel zur Wicklungsachse 12 zu liegen kommt. Das Prinzip einer Anordnung einer ersten Isolierschicht 26 sowie einer zweiten Isolierschicht 32 soll in der Fig. 2 näher erläutert werden.A third layer 30 is also shown in FIG. 1. This is comparable to the first Layer 18 built up and seen in the radial direction adjoins the second layer 22 on. There is a second insulating layer between the third layer 30 and the second layer 22 32 arranged. This is essentially configured like the first insulating layer 26. However, the corner with the acute angle faces the wedge-shaped second Insulating layer 32 to the other end of the winding axis 12 than the first corner of the first insulating layer 26. The position and configuration of the first insulating layer 26 and the second insulating layer 32 are chosen so that the radially outer side of the third layer 30 comes to lie exactly parallel to the winding axis 12. The principle an arrangement of a first insulating layer 26 and a second insulating layer 32 is to be explained in more detail in FIG. 2.

Der hier gezeigte Wicklungsaufbau muß nicht zwangsläufig um einen Wicklungskern gewickelt sein. So ist ohne weiteres vorstellbar, daß die Wicklung um einen Dorn erfolgt, der nach der Herstellung der Wicklung entfernt wird. Ein derartiger, erfindungsgemäß vorgesehener Wicklungsaufbau wird besonders erfolgreich eingesetzt ab einer Transformator bzw. Spulenleistung von ca. 5kVA. Typische Werte für das bandförmige Leitermaterial 16 können beispielsweise Breiten von 20 mm bei einer Stärke von 0,1 mm oder Breiten von 150 mm mit einer Dicke von 1 mm sein.The winding structure shown here does not necessarily have to be around a winding core be wrapped. So it is easily conceivable that the winding takes place around a mandrel, which is removed after the winding is made. Such, according to the invention The proposed winding structure is used particularly successfully from one Transformer or coil power of approx. 5kVA. Typical values for the band-shaped Conductor material 16 can be, for example, widths of 20 mm with a thickness of 0.1 mm or widths of 150 mm with a thickness of 1 mm.

Die Fig. 2 zeigt einen ersten Isolierkeil 40 dem ein zweiter Isolierkeil 42 gegenüber liegt und die prinzipiell als erste 26 bzw. zweite Isolierschicht 32 eingesetzt werden könnten. In dieser Figur sollen jedoch nur der prinzipielle Aufbau und die Wirkung der Anordnung zweier Isolierkeile 40, 42 dargestellt werden. Insofern sind die Maße bzw. die Größenverhältnisse in dieser Figur nicht maßstäblich und auch nicht der Darstellung zu Fig. 1 vergleichbar.2 shows a first insulating wedge 40 opposite a second insulating wedge 42 lies and which are used in principle as the first 26 or second insulating layer 32 could. In this figure, however, only the basic structure and the effect of Arrangement of two insulating wedges 40, 42 are shown. In this respect, the dimensions or the proportions in this figure are not to scale and also not the representation comparable to Fig. 1.

Der zweite Isolierkeil 42 weist eine Basisseite 44 auf. An einem ersten Ende der Basisseite 44 soll eine erste Stufe 46 angeordnet sein, die eine erste Dicke 48 sowie eine Stufenlänge 50 aufweist. Der ersten Stufe 46 schließt sich eine zweite Stufe 52 an, die um die erste Dicke 48 gegenüber der ersten Stufe 46 versetzt ist, so daß die Dicke der zweiten Stufe 52 insgesamt zwei ersten Dicken 48 entspricht. Es folgen in gleicher Weise eine dritte Stufe 54 und eine vierte Stufe 56, welche die ersten beiden Stufen 46, 52 zu einer treppenartigen Gestalt ergänzen, wobei die dritte Stufe 54 eine Dicke von drei ersten Dicken 48 bzw. die vierte Stufe 56 eine Dicke von vier ersten Stufen 48 hat. Alle Stufenlängen der Stufen 46, 52, 54, 56 entsprechen der Stufenlänge 50. Die Stufenoberseiten, deren Längen als Stufenlängen 50 bezeichnet sind, sind jeweils parallel zur Basisseite 44 angeordnet. The second insulating wedge 42 has a base side 44. At a first end of the base page 44, a first step 46 is to be arranged, which has a first thickness 48 and has a step length of 50. The first stage 46 is followed by a second stage 52 which is offset by the first thickness 48 from the first step 46 so that the The thickness of the second stage 52 corresponds to a total of two first thicknesses 48. It will follow in likewise a third stage 54 and a fourth stage 56, which are the first two Complement steps 46, 52 to a stair-like shape, the third step 54 one Thickness of three first thicknesses 48 and the fourth step 56 a thickness of four first Has levels 48. All step lengths of steps 46, 52, 54, 56 correspond to the Step length 50. The top of the step, the lengths of which are referred to as step lengths 50 are arranged parallel to the base side 44.

Der erste Isolierkeil 40 entspricht in seinen Abmessungen und Aufbau exakt dem zweiten Isolierkeil 42. Das Schnittbild des ersten Isolierkeils 40 ist in dieser Ansicht jedoch um 180° gegenüber dem zweiten Isolierkeil 42 rotiert. Zudem ist der erste Isolierkeil 40 so positioniert, daß sich die jeweiligen stufenförmigen Seiten der Isolierkeile 40, 42 exakt gegenüberliegen und in einem bestimmten Abstand 58 parallel zueinander angeordnet sind.The dimensions of the first insulating wedge 40 correspond exactly to that second insulating wedge 42. The sectional view of the first insulating wedge 40 is in this view however, rotated by 180 ° with respect to the second insulating wedge 42. It is also the first Isolating wedge 40 positioned so that the respective stepped sides of the insulating wedges 40, 42 are exactly opposite and parallel at a certain distance 58 are arranged to each other.

In dem in Fig. 1 gezeigten Beispiel könnte derart auf der Basisseite 44 die erste Lage 18, zwischen den Isolierkeilen 40, 42 die zweite Lage 22 sowie gegenüber der, der Basisseite 44 entsprechenden Basisseite des ersten Isolierkeils 40, die dritte Lage 30 angeordnet sein. Durch die Fig. 2 wird klar, daß die Basisseite 44 sowie die Seite 60 parallel zueinander liegen und demgemäß die diesen Seiten gegenüberliegenden Lagen von Wicklungen ebenfalls parallel zueinander zu liegen kommen. In the example shown in FIG. 1, the first layer could be on the base side 44 18, between the insulating wedges 40, 42, the second layer 22 and opposite that Base side 44 corresponding base side of the first insulating wedge 40, the third layer 30 be arranged. It is clear from FIG. 2 that the base side 44 and the side 60 are parallel to each other and accordingly the opposite sides Layers of windings also come to lie parallel to one another.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Wicklungskernwinding core
1212
Wicklungsachsewinding axis
1414
elektrischer Leiterelectrical conductor
1616
Isolationsmaterialinsulation material
1818
erste Lagefirst layer
2020
bestimmter Winkelcertain angle
2222
zweite Lagesecond layer
2424
Wicklungswinkelwinding angle
2626
erste Isolierschichtfirst insulating layer
2828
Stufenstages
3030
dritte Lagethird layer
3232
zweite Isolierschichtsecond layer of insulation
4040
erster Isolierkeilfirst insulating wedge
4242
zweiter Isolierkeilsecond insulating wedge
4444
Basisseitebase side
4646
erste Stufefirst stage
4848
erste Dickefirst thickness
5050
Stufenlängestep length
5252
zweite Stufesecond step
5454
dritte Stufethird step
5656
vierte Stufefourth stage
5858
Abstanddistance
6060
Seitepage

Claims (6)

Wicklung für einen Transformator oder eine Spule mit einem bandförmigen elektrischen Leiter (14) und mit einer Isoliermaterialschicht (16) aus bandförmigen Isolationsmaterial, die gemeinsam zu Windungen um einen Wicklungskern (10) gewickelt sind, wobei die einzelnen Windungen der Wicklung einen vorgegebenen Wicklungswinkel (20, 24) gegenüber der Wicklungsachse (12) des Wicklungskerns aufweisen und (10) zueinander mit teilweiser Überlappung angeordnet sind, und wobei zwischen zwei radial benachbarten Lagen (18, 22) von Windungen eine Isolierschicht (26) zwischengefügt ist, dadurch gekennzeichnet, daß örtliche Spannungsdifferenzen beziehungsweise ein Spannungsdifferenzenverlauf zwischen den zwei betreffenden radial benachbarten Lagen (18, 22) in Richtung der Wicklungsachse (12) ermittelt sind beziehungsweise ist, und daß die Dicke der Isolierschicht (26) örtlich jeweils an die ermittelte Spannungsdifferenz angepaßt ist.Winding for a transformer or a coil with a band-shaped electrical conductor (14) and with an insulating material layer (16) made of band-shaped insulation material, which are wound together in turns around a winding core (10), the individual turns of the winding having a predetermined winding angle (20 , 24) with respect to the winding axis (12) of the winding core and (10) to one another with partial overlap, and wherein an insulating layer (26) is interposed between two radially adjacent layers (18, 22) of turns, characterized in that local Voltage differences or a voltage difference curve between the two relevant radially adjacent layers (18, 22) in the direction of the winding axis (12) are or are determined, and that the thickness of the insulating layer (26) is locally adapted to the determined voltage difference. Wicklung nach Anspruch 1, dadurch gekennzeichnet, daß durch die Anordnung zweier radial benachbarter Isolierschichten (26, 32) die rechnerische Gesamtdicke dieser zwei Isolierschichten (26, 32) an jeder axialen Stelle in etwa eine gleiche Dicke aufweist.Winding according to Claim 1, characterized in that, by arranging two radially adjacent insulating layers (26, 32), the calculated overall thickness of these two insulating layers (26, 32) has approximately the same thickness at each axial point. Wicklung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Isolierschichten (26, 32) in axialer Richtung gesehen, gegeneinander versetzt angeordnet sind.Winding according to Claim 1 or 2, characterized in that the insulating layers (26, 32), viewed in the axial direction, are arranged offset with respect to one another. Wicklung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Dickenänderung der Isolierschicht (26, 32) in axialer Richtung stufenförmig ausgestaltet ist. Winding according to one of the preceding claims, characterized in that the change in thickness of the insulating layer (26, 32) is stepped in the axial direction. Wicklung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Dickenänderung der Isolierschicht (26, 32) in axialer Richtung kontinuierlich ausgestaltet ist.Winding according to one of the preceding claims, characterized in that the change in thickness of the insulating layer (26, 32) is designed continuously in the axial direction. Wicklung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß der elektrische Leiter (14) vor dem Wickeln der Windungen bereits mit einer Isoliermaterialschicht (16) aus bandförmigen Isolationsmaterial verbunden ist oder durch eine Isolierlackbeschichtung versehen ist.Winding according to one of the preceding claims, characterized in that the electrical conductor (14) is already connected to an insulating material layer (16) made of ribbon-shaped insulating material before the windings are wound, or is provided with an insulating lacquer coating.
EP02024178A 2001-11-23 2002-10-29 Winding for a transformer or a coil Expired - Lifetime EP1315183B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10157591A DE10157591A1 (en) 2001-11-23 2001-11-23 Winding for a transformer or a coil
DE10157591 2001-11-23

Publications (3)

Publication Number Publication Date
EP1315183A2 true EP1315183A2 (en) 2003-05-28
EP1315183A3 EP1315183A3 (en) 2004-12-01
EP1315183B1 EP1315183B1 (en) 2011-09-21

Family

ID=7706777

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Application Number Title Priority Date Filing Date
EP02024178A Expired - Lifetime EP1315183B1 (en) 2001-11-23 2002-10-29 Winding for a transformer or a coil

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US (1) US7064644B2 (en)
EP (1) EP1315183B1 (en)
KR (1) KR100981379B1 (en)
CN (1) CN1280848C (en)
AT (1) ATE525734T1 (en)
CA (1) CA2412349C (en)
DE (1) DE10157591A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP2251877A1 (en) 2009-05-14 2010-11-17 ABB Technology AG Method for manufacturing a sandwich winding
FR3033198A1 (en) * 2015-02-26 2016-09-02 Nexans SYSTEM FOR MONITORING A HIGH VOLTAGE LINE WITH CONTINUOUS CURRENT

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008033123A1 (en) * 2008-07-15 2010-01-21 Abb Ag Winding for a transformer
CA2758831C (en) * 2009-04-16 2015-06-23 Siemens Aktiengesellschaft Winding and method for producing a winding
US8614615B2 (en) * 2010-12-01 2013-12-24 Power Integrations, Inc. Energy transfer assembly with tuned leakage inductance and common mode noise compensation
WO2023137088A1 (en) * 2022-01-13 2023-07-20 H3X Technologies Inc. Electrical winding

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2251877A1 (en) 2009-05-14 2010-11-17 ABB Technology AG Method for manufacturing a sandwich winding
WO2010130337A3 (en) * 2009-05-14 2011-02-24 Abb Technology Ag Method for producing a disk winding
CN102422365A (en) * 2009-05-14 2012-04-18 Abb技术有限公司 Method for producing a disk winding
US8410888B2 (en) 2009-05-14 2013-04-02 Abb Technology Ag Method for producing a disk winding and disk winding
CN102422365B (en) * 2009-05-14 2015-01-14 Abb技术有限公司 Method for producing a disk winding
FR3033198A1 (en) * 2015-02-26 2016-09-02 Nexans SYSTEM FOR MONITORING A HIGH VOLTAGE LINE WITH CONTINUOUS CURRENT

Also Published As

Publication number Publication date
CN1280848C (en) 2006-10-18
EP1315183A3 (en) 2004-12-01
US7064644B2 (en) 2006-06-20
EP1315183B1 (en) 2011-09-21
KR100981379B1 (en) 2010-09-10
ATE525734T1 (en) 2011-10-15
DE10157591A1 (en) 2003-06-05
US20030156004A1 (en) 2003-08-21
CA2412349A1 (en) 2003-05-23
KR20030043652A (en) 2003-06-02
CA2412349C (en) 2012-08-07
CN1459807A (en) 2003-12-03

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