EP1315183B1 - Winding for a transformer or a coil - Google Patents
Winding for a transformer or a coil Download PDFInfo
- Publication number
- EP1315183B1 EP1315183B1 EP02024178A EP02024178A EP1315183B1 EP 1315183 B1 EP1315183 B1 EP 1315183B1 EP 02024178 A EP02024178 A EP 02024178A EP 02024178 A EP02024178 A EP 02024178A EP 1315183 B1 EP1315183 B1 EP 1315183B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- insulating layer
- 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.)
- Expired - Lifetime
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/323—Insulation between winding turns, between winding layers
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- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
Definitions
- the invention relates to a winding for a transformer or a coil having a band-shaped electrical conductor and an insulating material layer of strip-shaped insulating material, which are wound together to windings around a winding core, wherein the individual turns of the winding have a predetermined winding angle relative to the winding axis of the winding core and are arranged to each other with partial overlap, and wherein between two radially adjacent layers of turns, an insulating layer is interposed.
- pamphlet US 3,928,832 discloses such a winding.
- the windings are usually wrapped closely adjacent to each other in the axial direction and formed at least one layer of turns.
- the object according to the invention is characterized in that the local voltage differences or a voltage difference profile between the two respective radially adjacent layers in the direction of the winding axis is determined and that the thickness of the insulating layer is locally adapted in each case to the voltage difference determined there.
- the insulating layer is therefore not designed according to the previously known prior art with an equal layer thickness, but the thickness is adapted to the voltage difference between the respective radially adjacent rows. Accordingly, insulating material can be saved at the axial points where the voltage difference is comparatively low. In addition, this ensures that the transformer or the coil as a whole has a comparatively better surge voltage resistance between the layers.
- An advantageous embodiment of the subject invention is that in the arrangement of two radially adjacent insulating layers, the calculated total thickness of these two insulating layers at each axial point has approximately the same thickness.
- a favorable embodiment of the subject invention provides that the change in thickness of the insulating layer is configured continuously in the axial direction. In this way, approximately a wedge-shaped profile of the insulating layer, in the event that the sectional image is viewed through the winding axis.
- a sectional sawtooth or woolly profile is provided, for example, when two coils are arranged directly adjacent to each other.
- the change in thickness of the insulating layer in the axial direction is configured step-shaped. That is, viewed in the axial direction, the thickness of the insulating layer changes abruptly in stages, that is, discontinuously, without this being detrimental to the dielectric strength.
- the production of the insulating layer can be done much easier in this embodiment and the usually band-shaped insulating material layer by layer are wound to the insulating layer.
- 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
- the winding is formed from a band-shaped electrical conductor 14 which is coated with a band-shaped insulating material 16.
- the band-shaped insulating material 16 may also consist of a band-shaped film.
- the first layer 18 of turns should be designated that layer which is wound directly around the winding core 10.
- the band-shaped insulating material 16 is arranged such that it lies between the winding core 10 and the conductor 14.
- the individual turns of the first layer 18 are inclined by a certain angle 20 relative to the winding axis 12.
- each turn is offset by a certain amount parallel to the direction of the winding axis 12 from the previous winding so that a next following winding has a partial overlap with the previous turn.
- a second layer 22 of turns is wrapped radially about the first layer 18.
- the winding structure of the second layer 22 substantially corresponds to the winding structure of the first layer 18, so that here also the electrical conductor 14 and the insulating material 16 in the form of an arrangement turn to turn side by side with partial overlap are configured.
- the axial orientation of the overlaps of the first layer 18 and the second layer 22 is selected so that they come to lie at the same axial location of the winding axis 12.
- the type of overlap in the second layer 22 is chosen so that a winding angle 24 of the second layer 22 corresponds to the amount of the particular angle 20, but with a negative angular orientation. That is to say mathematically, the winding angle 24 corresponds to an angle of 180 ° minus the specific angle 20, as long as the winding axis 12 is regarded as a zero angle.
- a first insulating layer 26 is arranged, which in this view has approximately a wedge-shaped sectional image.
- the first corner of the wedge having the acute angle is at a first end of the winding axis 12 and the first corner opposite broad side of the wedge is disposed at a second end of the winding axis 12.
- the second layer 22 facing side of the insulating layer 26 has a plurality of steps 28.
- the width of such a stage corresponds in this example in each case three times the width of the electrical Conductor 14.
- the insulating material for the production of the first insulating layer 26 is usually also in strip form.
- the width of the insulating material to be used can be determined in a generally known manner from its thickness, the cross section to be filled and the number of turns.
- the winding of the first insulating layer 26 at the first end of the winding axis 12 and the first layer 18 is then to be started.
- the band-shaped insulating material can now be wound around it in the usual way, for example in the manner described for the windings, between the first and the second end of the first layer 18 until the desired insulating layer thickness of a first stage of the steps 28 is reached.
- step by step a higher layer thickness can be achieved until the last and thus thickest stage is reached.
- an insulation material of a certain width can be wound continuously with a predeterminable feed. It is not absolutely necessary that at the first, ie the thinnest stage, a closed layer is already formed, ie. H.
- the feed may be greater than the width of the material to be wound, if the introduced Windungsisolation already sufficient for the isolation between two layers.
- the winding insulation is in particular the band-shaped insulation material layer, which is applied to the electrical conductor or placed as a strip material or as a film on the conductor. If the feed is halved, results in an insulating layer with double thickness. In this way, a stepped insulation can also be achieved without the isolation process must be interrupted in the meantime.
- a third layer 30 shown. This is constructed comparable to the first layer 18 and, viewed in the radial direction, adjoins the second layer 22. Between the third layer 30 and the second layer 22, a second insulating layer 32 is arranged. This is designed substantially like the first insulating layer 26. However, the acute angle corner of the wedge-shaped second insulating layer 32 faces the other end of the winding axis 12 than the first corner of the first insulating layer 26. The location and configuration of the first insulating layer 26 and the second insulating layer 32 are selected to be radially outward Side of the third layer 30 comes to lie exactly parallel to the winding axis 12. The principle of an arrangement of a first insulating layer 26 and a second insulating layer 32 is intended in the Fig. 2 be explained in more detail.
- the winding structure shown here does not necessarily have to be wound around a winding core. Thus, it is readily conceivable that the winding takes place around a mandrel, which is removed after the production of the winding. Such, according to the invention provided winding structure is used particularly successfully from a transformer or coil power of about 5kVA.
- Typical values for the band-shaped conductor material 16 may be, for example, widths of 20 mm at a thickness of 0.1 mm or widths of 150 mm with a thickness of 1 mm.
- the Fig. 2 shows a first Isolierkeil 40 which a second Isolierkeil 42 is opposite and which could be used in principle as the first 26 and second insulating layer 32.
- first Isolierkeil 40 which a second Isolierkeil 42 is opposite and which could be used in principle as the first 26 and second insulating layer 32.
- second Isolierkeil 42 which could be used in principle as the first 26 and second insulating layer 32.
- only the basic structure and the effect of the arrangement of two insulating wedges 40, 42 are to be shown.
- the dimensions or the proportions in this figure are not to scale and not the representation too Fig. 1 comparable.
- the second insulating wedge 42 has a base side 44. At a first end of the base side 44, a first step 46 is to be arranged, which has a first thickness 48 and a step length 50.
- the first stage 46 is followed by a second stage 52, which is offset by the first thickness 48 with respect to the first stage 46, so that the thickness of the second stage 52 a total of two first thicknesses 48 corresponds.
- a third stage 54 and a fourth stage 56 which complete the first two stages 46, 52 to a staircase-like shape, the third stage 54 has a thickness of three first thicknesses 48 and the fourth stage 56 a thickness of has four first stages 48. All step lengths of the steps 46, 52, 54, 56 correspond to the step length 50.
- the step tops, the lengths of which are designated as step lengths 50, are each arranged parallel to the base side 44.
- the first Isolierkeil 40 corresponds in its dimensions and structure exactly the second Isolierkeil 42.
- the sectional view of the first insulating wedge 40 is rotated in this view, however, by 180 ° relative to the second Isolierkeil 42.
- the first Isolierkeil 40 is positioned so that the respective stepped sides of the Isolierkeile 40, 42 are exactly opposite and are arranged at a certain distance 58 parallel to each other.
- the first layer 18 could be arranged on the base side 44, the second layer 22 between the insulating wedges 40, 42 and the third layer 30 relative to the base side 44 of the first insulating wedge 40 corresponding to the base side 44.
- the base side 44 and the side 60 are parallel to each other and, accordingly, the layers of windings lying opposite these sides also come to lie parallel to one another.
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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
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. Druckschrift
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 windings are usually wrapped closely adjacent to each other in the axial direction and formed at least one layer of 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 radially together and form a multilayer transformer or a multilayer coil. In the case of several layers of turns, an insulating layer is often interposed between two adjacent layers. This insulating layer prevents flashovers between the layers and is thus designed for 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.Based on this prior art, it is an object of the invention to provide a winding for a transformer or a coil can be saved in the insulation material and at the same time a sufficient dielectric strength is achieved, in particular a good surge voltage resistance between two radially 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 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 according to the invention is characterized in that the local voltage differences or a voltage difference profile between the two respective radially adjacent layers in the direction of the winding axis is determined and that the thickness of the insulating layer is locally adapted in each case to the voltage difference determined there. The insulating layer is therefore not designed according to the previously known prior art with an equal layer thickness, but the thickness is adapted to the voltage difference between the respective radially adjacent rows. Accordingly, insulating material can be saved at the axial points where the voltage difference is comparatively low. In addition, this ensures that the transformer or the coil as a whole 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 invention is that in the arrangement of two radially adjacent insulating layers, the calculated total thickness of these two insulating layers at each axial point has approximately the same thickness. With this embodiment, it is advantageously achieved that the different outer diameter of a layer resulting from the different insulating layer thicknesses is compensated for again by the profile according to the invention of a further insulating layer between the layer and a next following layer, thus achieving an overall uniform outer diameter of the transformer or of the coil ,
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 subject invention provides that the change in thickness of the insulating layer is configured continuously in the axial direction. In this way, approximately a wedge-shaped profile of the insulating layer, in the event that the sectional image is viewed through the winding axis. However, it is readily conceivable that a sectional sawtooth or woolly profile is provided, for example, when two coils are arranged directly adjacent to each other.
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 the axial direction is configured step-shaped. That is, viewed in the axial direction, the thickness of the insulating layer changes abruptly in stages, that is, discontinuously, without this being detrimental to the dielectric strength. In addition, the production of the insulating layer can be done much easier in this embodiment and the usually band-shaped insulating material layer by layer are wound to the insulating layer.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.Further advantageous embodiments of the invention are specified in the dependent claims.
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.Reference to an embodiment shown in the drawings, the invention, an advantageous embodiment and improvements of the invention, and particular advantages of the invention will be explained and described in detail.
Es zeigen:
- Fig. 1
- eine Transformatorwicklung mit drei Lagen und
- Fig. 2
- zwei sich gegenüberliegende Isolierschichten.
- Fig. 1
- a transformer winding with three layers and
- Fig. 2
- two opposing insulating layers.
In
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 turns should be designated that layer which is wound directly around the winding
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.Between the second layer 22 and the first layer 18, a first
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 the production of the first insulating
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.Alternatively, an insulation material of a certain width can be wound continuously with a predeterminable feed. It is not absolutely necessary that at the first, ie the thinnest stage, a closed layer is already formed, ie. H. The feed may be greater than the width of the material to be wound, if the introduced Windungsisolation already sufficient for the isolation between two layers. The winding insulation is in particular the band-shaped insulation material layer, which is applied to the electrical conductor or placed as a strip material or as a film on the conductor. If the feed is halved, results in an insulating layer with double thickness. In this way, a stepped insulation can also be achieved without the isolation process must be interrupted in the meantime.
In der
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 wound around a winding core. Thus, it is readily conceivable that the winding takes place around a mandrel, which is removed after the production of the winding. Such, according to the invention provided winding structure is used particularly successfully from a transformer or coil power of about 5kVA. Typical values for the band-shaped
Die
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
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
In dem in
- 1010
- Wicklungskernwinding core
- 1212
- Wicklungsachsewinding axis
- 1414
- elektrischer Leiterelectrical conductor
- 1616
- Isolationsmaterialinsulation material
- 1818
- erste Lagefirst location
- 2020
- bestimmter Winkelcertain angles
- 2222
- zweite Lagesecond location
- 2424
- Wicklungswinkelwinding angle
- 2626
- erste Isolierschichtfirst insulating layer
- 2828
- Stufenstages
- 3030
- dritte Lagethird location
- 3232
- zweite Isolierschichtsecond insulating layer
- 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)
- Winding for a transformer or a coil having a ribbon electrical conductor (14) and having an insulating material layer (16) composed of ribbon insulation material, which are wound jointly to form turns around a winding core (10), with 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 being arranged (10) such that they partially overlap one another, and with an insulating layer (26) being inserted between two radially adjacent layers (18, 22) of turns, characterized in that local voltage differences and/or a voltage difference profile between the two relevant radially adjacent layers (18, 22) in the direction of the winding axis (12) are or is determined, and in that the thickness of the insulating layer (26) is locally matched to the determined voltage difference in each case.
- Winding according to Claim 1, characterized in that, as a result of the arrangement of two radially adjacent insulating layers (26, 32), the calculated overall thickness of these two insulating layers (26, 32) has approximately the same thickness at every axial point.
- Winding according to Claim 1 or 2, characterized in that the insulating layers (26, 32) are arranged offset with respect to one another, seen in the axial direction.
- Winding according to one of the preceding claims, characterized in that the thickness change in the insulating layer (26, 32) is in the form of steps in the axial direction.
- Winding according to one of the preceding claims, characterized in that the thickness change in the insulating layer (26, 32) is continuous in the axial direction.
- Winding according to one of the preceding claims, characterized in that, before the turns are wound, the electrical conductor (14) is connected to an insulating material layer (16) composed of ribbon insulation material, or is provided with an insulating varnish coating.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10157591 | 2001-11-23 | ||
DE10157591A DE10157591A1 (en) | 2001-11-23 | 2001-11-23 | Winding for a transformer or a coil |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1315183A2 EP1315183A2 (en) | 2003-05-28 |
EP1315183A3 EP1315183A3 (en) | 2004-12-01 |
EP1315183B1 true EP1315183B1 (en) | 2011-09-21 |
Family
ID=7706777
Family Applications (1)
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 |
Country Status (7)
Country | Link |
---|---|
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) |
Families Citing this family (6)
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 |
ES2404812T3 (en) * | 2009-05-14 | 2013-05-29 | Abb Technology Ag | Manufacturing procedure of a disc winding |
US8614615B2 (en) * | 2010-12-01 | 2013-12-24 | Power Integrations, Inc. | Energy transfer assembly with tuned leakage inductance and common mode noise compensation |
FR3033198B1 (en) * | 2015-02-26 | 2018-07-27 | Nexans | SYSTEM FOR MONITORING A HIGH VOLTAGE LINE WITH CONTINUOUS CURRENT |
AU2023207082A1 (en) * | 2022-01-13 | 2024-07-11 | H3X Technologies Inc. | Electrical winding |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1819904U (en) * | 1959-03-20 | 1960-10-20 | Schaltbau Gmbh | MULTI-LAYER ELECTRIC COIL. |
SE376508B (en) * | 1973-09-28 | 1975-05-26 | Asea Ab | |
DE3212060A1 (en) | 1982-04-01 | 1983-10-06 | Aeg Isolier Kunststoff | SURFACE INSULATING FABRIC FOR ALUMINUM FILM WINDINGS, ESPECIALLY FOR DRY TRANSFORMERS OF TEMPERATURE CLASSES F AND H |
CH664041A5 (en) * | 1984-02-08 | 1988-01-29 | Micafil Ag | METHOD FOR THE LAYER WINDING OF COILS FOR ELECTRICAL DEVICES. |
JPH01253211A (en) * | 1988-03-31 | 1989-10-09 | Showa Electric Wire & Cable Co Ltd | Coil device and folded coil for use therein |
AU673670B2 (en) * | 1992-03-25 | 1996-11-21 | Electric Power Research Institute, Inc. | Improved core-form transformer |
JPH06231937A (en) * | 1993-01-29 | 1994-08-19 | Nippon Petrochem Co Ltd | Flat-wire coil |
GB2307354A (en) * | 1995-11-14 | 1997-05-21 | Daewoo Electronics Co Ltd | Flyback transformer with a cylindrical printed circuit coil structure |
DE19854439C2 (en) * | 1998-11-25 | 2000-10-12 | Siemens Ag | Transformer - especially cast resin transformer |
JP2001085246A (en) * | 1999-09-10 | 2001-03-30 | Sansha Electric Mfg Co Ltd | Coil |
-
2001
- 2001-11-23 DE DE10157591A patent/DE10157591A1/en not_active Withdrawn
-
2002
- 2002-10-29 EP EP02024178A patent/EP1315183B1/en not_active Expired - Lifetime
- 2002-10-29 AT AT02024178T patent/ATE525734T1/en active
- 2002-11-13 KR KR1020020070424A patent/KR100981379B1/en active IP Right Grant
- 2002-11-21 CA CA2412349A patent/CA2412349C/en not_active Expired - Fee Related
- 2002-11-22 CN CNB021557489A patent/CN1280848C/en not_active Expired - Fee Related
- 2002-11-25 US US10/304,118 patent/US7064644B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1315183A2 (en) | 2003-05-28 |
CN1280848C (en) | 2006-10-18 |
US7064644B2 (en) | 2006-06-20 |
US20030156004A1 (en) | 2003-08-21 |
CA2412349C (en) | 2012-08-07 |
KR100981379B1 (en) | 2010-09-10 |
CA2412349A1 (en) | 2003-05-23 |
ATE525734T1 (en) | 2011-10-15 |
CN1459807A (en) | 2003-12-03 |
KR20030043652A (en) | 2003-06-02 |
DE10157591A1 (en) | 2003-06-05 |
EP1315183A3 (en) | 2004-12-01 |
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