EP0171688A1 - Method of manufacturing a sheet winding and sheet winding manufactured according to this method - Google Patents

Method of manufacturing a sheet winding and sheet winding manufactured according to this method Download PDF

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Publication number
EP0171688A1
EP0171688A1 EP85109430A EP85109430A EP0171688A1 EP 0171688 A1 EP0171688 A1 EP 0171688A1 EP 85109430 A EP85109430 A EP 85109430A EP 85109430 A EP85109430 A EP 85109430A EP 0171688 A1 EP0171688 A1 EP 0171688A1
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EP
European Patent Office
Prior art keywords
winding
edge
tape
layer
insulating
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
EP85109430A
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German (de)
French (fr)
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EP0171688B1 (en
Inventor
Otto Graul
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Trench Germany GmbH
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MWB Messwandler Bau AG
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Priority to AT85109430T priority Critical patent/ATE42859T1/en
Publication of EP0171688A1 publication Critical patent/EP0171688A1/en
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Publication of EP0171688B1 publication Critical patent/EP0171688B1/en
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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/122—Insulating between turns or between winding layers
    • 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
    • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling

Definitions

  • the present invention relates to a method for producing a layer winding according to the preamble of claim 1 and to a layer winding produced by this method.
  • a method for producing such a layer winding is known from DE-AS 21 57 452. With this method, all insulation layers and also the edge areas for the lateral fixing of the winding conductor are wound from a single, coherent insulating tape. This has the advantage that the winding device for producing the insulating tape layers and the insulating tape edge areas does not have to be stopped; but the disadvantage that the insulating tape edge areas have free spaces that significantly reduce the mechanical strength of the insulating tape edge areas.
  • the object of the present invention is to achieve this known method and the method To improve the layer winding to be delivered so that the insulation has as little or no free space as possible even in the edge of the insulating tape.
  • the present invention practically completely eliminates the free spaces in the edge regions of the winding layers which have been bothersome for mechanical and also for electrical reasons. This gives mechanically very stable edge areas and thus also a high mechanical strength of the entire layer winding. Since the edge regions no longer have any free spaces, the electrical strength is also better than in the case of layer windings, as can be produced using the previously known method. Furthermore, in contrast to the previously known method, edge strips of different widths can also be used and thus edge regions of the windings of different widths can be produced. By using, for example, a harder insulating material for the edge strip, an additional strengthening of the layer winding can be achieved.
  • FIG. 1 denotes a coil former, for example made of plastic, Pertinax, pressboard or the like.
  • an insulating tape 2 for example made of paper or a plastic film, is applied approximately in the middle third of an edge area 3 of the right first edge 4 and wound with a certain initial slope.
  • the slope here is dimensioned such that a triple layer results as the first insulating layer 5 with an overlap width of one third.
  • an insulating edge strip 6 is inserted or applied and / or glued and wound into an edge 4, the height H 1 of which is at least approximately equal to the height of the insulating layer 5 and the height of the winding layer 7, one made from a winding wire 8 winding layer winding 9 is.
  • the insulating tape 2 is wound in the same direction as the winding wire 8.
  • the width of the edge strip 6 is smaller than the width of the insulating tape 2.
  • the cross section of the winding wire 8 can be round, square or rectangular. Foil conductors can also be used.
  • the winding wire 8 itself is insulated in a manner known per se, for example surrounded by lacquer and / or provided with a wound or the like.
  • the winding wire 8 is placed on the inside 10 of the first edge 4.
  • the insulating tape 2 and the winding wire 4 are then wound in the direction of arrow 11 with the insulating tape 2 leading.
  • the remaining tape 15 (see FIG. 3) of the insulating tape 2 is wound with the constant width of approximately 33% to 25% of the original tape width, in particular together with the edge strip 6 '.
  • the edge wedge which is formed in the usual winding with a slope during the winding back and forth and is penetrated by free spaces is avoided and all the free spaces 16 which otherwise arise are filled.
  • the last left third of the tape is no longer wound in the first insulation layer 5, so that this insulation layer 5 there is only 2 layers. Filling in the resulting there in itself free space 16 is obtained so that the next layer of the edge strip 6 1 is wound with the remaining band "15 of constant width. The space 16 located below is thus filled.
  • the length or number of turns with the remaining tape 15, which is then wound further without an incline, is dimensioned such that the surface of the second edge 4 'again runs at least almost parallel to the winding axis. Then the remaining band 15 cut off and glued or pinned with the end p 17 at its last position or possibly on the edge strip 6 '.
  • the insulating tapes 2 or the edge strips 6, 6 ' can each be glued with a one-sided adhesive, in particular self-adhesive, insulating adhesive tape.
  • edge 4 ' is wound up by the edge strip 6' up to the height H 2 of two winding layers, which here corresponds approximately to the height of the first insulating layer 5 and twice the diameter of the winding wire 8. Then the edge strip 6 'is cut off and its end 18 (see FIG. 3) is glued on.
  • edges 4 and 4 ' further edge strips made of a material with a different hardness, density, electrical or mechanical strength, good absorbency with layer windings to be impregnated later or the like can be wrapped.
  • the edge strip 6, 6 ' may also be thicker than the thickness of the insulating tape 2.
  • the first winding layer 7 is still fully wound with the winding wire 8 until the winding wire 8 lies against the inside of the edge 4'.
  • the insulating tape 2 is applied directly in the middle third of the edge 4 'with a predetermined slope and both the insulating tape 2 and the winding wire 8 are now wound in the direction of arrow 19 with the opposite slope and feed direction.
  • the insulating tape 2 overtakes the winding wire 8 due to its larger pitch.
  • the insulating tape 2 arrives first and the edge is built up at the edge 4 with a double turn height H 2, as described using the edge 4 '.
  • winding continues in the direction of the arrows 20, 21, etc. until the calculated coil size of the layer winding is reached.
  • the insulation layer 5, 5 ', 5 ", etc. is made as uniform as possible on a tap 22, for example by connecting the winding wire 8 or applying and connecting a connection or the like the pitch of the insulating tape 2 in the region of the tap 22, in particular on both sides thereof, is increased in accordance with the permissible positional tension.
  • the pitch of the insulating tape 2 is reduced in this area.
  • the slope of the insulating tape 2 is gradually or continuously reduced in a manner known per se as the layer voltage rises.
  • the slope of the insulating tape 2 can also be made smaller in middle winding layers than in winding layers lying further outward, since there are higher electrical levels as a result of greater heating or the like Loads can occur.
  • the cutting edge 23 of the remaining strip 15 or of the entire inclined end section may be provided further inwards than the outer edge 24 of the edge strip 6 or 6 'corresponds to.
  • the direction of rotation of the coil former 1 is represented by an arrow P in FIG.
  • the insulating tape 2 is returned in the opposite direction after the maximum edge overhang has been reached and if the insulating tape 2 or the remaining remaining tape 15 is then wound on without any feed until the edge 4 'is formed up to twice the height H 2 of a winding layer.
  • a particularly good mechanical bond between the insulating tapes 2 and the edge strips 6, 6 ' is obtained if, at the time of or after the beginning of the insulating tape cutting, an edge strip 6' is put on or inserted and fastened on the insulating tape 2. It is also advantageous if the edge strip 6 'is at least partially wound together with the insulating tape 2 or with the remaining tape 15 up to twice the height H 2 of a winding layer.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)
  • Winding Of Webs (AREA)

Abstract

A layer winding for transformers, measuring transformers, choke coils or the like is to be so improved that the insulation of such a layer winding exhibits practically no free spaces in the insulating tape edge areas. This is assured by the method of manufacture in that when reaching the outer end face (12) of a layer winding edge (4), the insulating tape (2) is continued to be wound and the band portion (13) of the insulating tape (2) which projects beyond the edge face (12) is continuously cut off. The remaining residual portion of the insulating tape (15) is then continued to be wound with zero pitch for such length of time until the free spaces which otherwise occur at the layer winding edge (4') are filled out.

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Herstellung einer Lagenwicklung gemäß dem Oberbegriff des Anspruches 1 und auf eine nach diesem Verfahren hergestellte Lagenwicklung.The present invention relates to a method for producing a layer winding according to the preamble of claim 1 and to a layer winding produced by this method.

Ein Verfahren zur Herstellung einer derartigen Lagenwicklung ist aus der DE-AS 21 57 452 bekannt. Bei diesem Verfahren werden alle Isolierlagen und auch die Randbereiche für die seitliche Festlegung des Wicklungsleiters aus einem einzigen, zusammenhängenden Isolierband gewickelt. Dies hat den Vorteil, daß die Wickelvorrichtung zur Herstellung der Isolierbandlagen und der Isolierbandrandbereiche nicht angehalten werden muß; aber den Nachteil, daß die Isolierbandrandbereiche Freiräume aufweisen, die die mechanische Festigkeit der Isolierbandrandbereiche deutlich herabsetzen.A method for producing such a layer winding is known from DE-AS 21 57 452. With this method, all insulation layers and also the edge areas for the lateral fixing of the winding conductor are wound from a single, coherent insulating tape. This has the advantage that the winding device for producing the insulating tape layers and the insulating tape edge areas does not have to be stopped; but the disadvantage that the insulating tape edge areas have free spaces that significantly reduce the mechanical strength of the insulating tape edge areas.

Mit der vorliegenden Erfindung soll die Aufgabe gelöst werden, dieses vorbekannte Verfahren und die damit herzustellende Lagenwicklung so zu verbessern, daß die Isolierung auch in den Isolierbandrandbereichen möglichst wenig oder keine Freiräume mehr aufweist.The object of the present invention is to achieve this known method and the method To improve the layer winding to be delivered so that the insulation has as little or no free space as possible even in the edge of the insulating tape.

Diese Aufgabe wird durch die im Kennzeichen des Anspruche 1 bzw. des Anspruches 12 angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of claim 1 and claim 12.

Mit der vorliegenden Erfindung werden die bisher aus mechanischen und auch aus elektrischen Gründen störenden Freiräume in den Randbereichen der Wicklungslagen praktisch vollkommen beseitigt. Damit erhält man mechanisch sehr stabile Randbereiche und damit auch eine hohe mechanische Festigkeit der gesamten Lagenwicklung. Da die Randbereiche keine Freiräume mehr aufweisen, ist auch die elektrische Festigkeit besser als bei Lagenwicklungen, wie sie nach dem vorbekannten Verfahren hergestellt werden können. Weiterhin können im Gegensatz zumvorbekannten Verfahren auch Randstreifen verschiedener Breite verwendet und damit verschieden breite Randbereiche der Wicklungen hergestellt werden. Durch Verwendung von beispielsweise eines härteren Isoliermaterials für den Randstreifen kann noch eine zusätzliche Verfestigung der Lagenwicklung erzielt werden.The present invention practically completely eliminates the free spaces in the edge regions of the winding layers which have been bothersome for mechanical and also for electrical reasons. This gives mechanically very stable edge areas and thus also a high mechanical strength of the entire layer winding. Since the edge regions no longer have any free spaces, the electrical strength is also better than in the case of layer windings, as can be produced using the previously known method. Furthermore, in contrast to the previously known method, edge strips of different widths can also be used and thus edge regions of the windings of different widths can be produced. By using, for example, a harder insulating material for the edge strip, an additional strengthening of the layer winding can be achieved.

Weitere vorteilhafte Einzelheiten der Erfindung sind in den Unteransprüchen angegeben und werden nachfolgend anhand eines in der Zeichnung veranschaulichten Ausführungsbeispieles näher beschrieben. Dabei zeigen:

  • Figur 1 einen Ausschnitt des Endes einer Seite einer Wicklungslage im Schnitt beim Anwickeln
  • Figur 2 die andere Seite der Lagenwicklung beim Wickeln der vierten Lage im Schnitt und
  • Figur 3 die Abwicklung einer Isolationslage im linken Randbereich der Lagenwicklung.
Further advantageous details of the invention are specified in the subclaims and are described in more detail below with reference to an exemplary embodiment illustrated in the drawing. Show:
  • Figure 1 shows a section of the end of one side of a winding layer in section when winding
  • Figure 2 shows the other side of the layer winding when winding the fourth layer in section and
  • 3 shows the development of an insulation layer in the left edge region of the layer winding.

Mit 1 ist ein Spulenkörper, beispielsweise aus Kunststoff, Pertinax, Preßspan oder dgl. bezeichnet. In Figur 1 ist ein Isolierband 2, beispielsweise aus Papier oder aus einer Kunststoffolie, etwa im mittleren Drittel eines Randbereiches 3 des rechten ersten Randes 4 angelegt und mit einer bestimmten Anfangssteigung angewickelt. Beispielsweise ist die Steigung hier so bemessen, daß sich bei einer Uberlappungsbreite von einem Drittel eine 3-fach Lage als erste Isolierlage 5 ergibt. Im Randbereich 3 ist nach dem Anwickeln des Isolierbandes 2 ein isolierender Randstreifen 6 eingelegt oder angelegt und/oder angeklebt und zu einem Rand 4 gewickelt, dessen Höhe H 1 wenigstens annähernd gleich der Höhe der Isolierlage 5 und der Höhe der Wicklungslage 7 einer aus einem Wicklungsdraht 8 aufzuwickelnden Lagenwicklung 9 ist. Gleichzeitig wird das Isolierband 2 im gleichen Wickelsinn wie der Wicklungsdraht 8 weitergewickelt.1 denotes a coil former, for example made of plastic, Pertinax, pressboard or the like. In Figure 1, an insulating tape 2, for example made of paper or a plastic film, is applied approximately in the middle third of an edge area 3 of the right first edge 4 and wound with a certain initial slope. For example, the slope here is dimensioned such that a triple layer results as the first insulating layer 5 with an overlap width of one third. In the edge area 3, after the insulating tape 2 has been wound up, an insulating edge strip 6 is inserted or applied and / or glued and wound into an edge 4, the height H 1 of which is at least approximately equal to the height of the insulating layer 5 and the height of the winding layer 7, one made from a winding wire 8 winding layer winding 9 is. At the same time, the insulating tape 2 is wound in the same direction as the winding wire 8.

Die Breite des Randstreifens 6 ist kleiner als die Breite des Isolierbandes 2. Der Querschnitt des Wicklungsdrahtes 8 kann rund, quadratisch oder rechteckig sein. Es können also auch Folienleiter verwendet werden. Der Wicklungsdraht 8 selbst ist in an sich bekannter Weise isoliert, beispielsweise mit Lack umgeben und/oder mit einer Umspinnung oder dgl. versehen.The width of the edge strip 6 is smaller than the width of the insulating tape 2. The cross section of the winding wire 8 can be round, square or rectangular. Foil conductors can also be used. The winding wire 8 itself is insulated in a manner known per se, for example surrounded by lacquer and / or provided with a wound or the like.

Nach der Bildung des ersten Randes 4 in der angegebenen Höhe H 1 wird der Wicklungsdraht 8 an der Innenseite 10 des ersten Randes 4 angelegt. Anschließend werden das Isolierband 2 und der Wicklungsdraht 4 in Richtung des Pfeiles 11 unter Voreilung des Isolierbandes 2 gewickelt.After the formation of the first edge 4 at the specified height H 1, the winding wire 8 is placed on the inside 10 of the first edge 4. The insulating tape 2 and the winding wire 4 are then wound in the direction of arrow 11 with the insulating tape 2 leading.

Bei Erreichen des linken Spulenkörperrandes bzw. Randbereiches 3' (siehe Figur 2) durch das Isolierband 2 wird dieses mit gleicher oder gegebenenfalls auch mit veränderter, vorzugsweise verringerter Steigung, weitergewickelt und der über die linke Stirnfläche 12 des Spulenkörpers 1 hinausragende Bandteil 13 wird durch eine lediglich schematisch angedeutete Schneidvorrichtung 14 kontinuierlich abgeschnitten (siehe gestrichelten Bandteil 13 in Figur 3), bis die Breite des Issolierbandes 2 in diesem Randbereich 3' noch etwa ein Drittel bis ein Viertel der ursprünglichen Bandbreite beträgt. Bei Erreichen dieser Bandbreite oder auch kurz vorher oder kurz nachher, insbesondere bei einer Breite des Bandteils 13 von 15 % bis 30 % der ursprünglichen Bandbreite, wird ein Randstreifen 6' eingelegt oder angelegt und/oder angeklebt und anschließend wird der Rand 41 gewickelt. Das Restband 15 (siehe Figur 3) des Isolierbandes 2 wird mit der konstanten Breite von etwa 33 % bis 25 % der ursprünglichen Bandbreite, insbesondere zusammen mit dem Randstreifen 6' weitergewickelt. Dabei wird der beim üblichen Wickeln mit einer Steigung beim Hin- und Zurückwickeln am Rand sich ausbildende, von Freiräumen durchsetzte Randkeil vermieden und es werden alle ansonsten entstehenden Freiräume 16 ausgefüllt. Beispielsweise ist in Figur 2 das letzte linke Banddrittel nicht mehr in der ersten Isolierlage 5 gewickelt, so daß diese Isolierlage 5 dort nur noch 2-lagig ist. Die Ausfüllung des dort dadurch an sich entstehenden Freiraumes 16 wird damit erzielt, daß die nächste Lage des Randstreifens 61 mit dem Restband '15 konstanter Breite gewickelt wird. Damit wird der aarunter befindliche Freiraum 16 aufgefüllt. Die Länge bzw. Anzahl der Windungen mit dem Restband 15, das dann ohne Steigung weitergewickelt wird, wird so bemessen, daß die Oberfläche des zweiten Randes 4' wieder wenigstens nahezu parallel zur Wickelachse verläuft. Dann wird das Restband 15 abgeschnitten und mit dem Endp 17 an seiner letzten Lage oder gegebenenfalls auf dem Randstreifen 6' aufgeklebt oder angeheftet. Beispielsweise kann das Ankleben der Isolierbänder 2 oder der Randstreifen 6, 6' jeweils mit einem einseitig klebenden, insbesondere selbstklebenden isolierenden Klebeband erfolgen.When the left bobbin edge or edge is reached area 3 '(see FIG. 2) by the insulating tape 2, this is wound on with the same or possibly also with a different, preferably reduced, pitch, and the tape part 13 projecting beyond the left end face 12 of the bobbin 1 is continuously cut off by a cutting device 14, which is only indicated schematically (see dashed band part 13 in FIG. 3) until the width of the issuing band 2 in this edge region 3 'is still about a third to a quarter of the original band width. When this band width is reached or shortly before or shortly afterwards, in particular when the band part 13 has a width of 15% to 30% of the original band width, an edge strip 6 'is inserted or applied and / or glued and the edge 4 1 is then wound. The remaining tape 15 (see FIG. 3) of the insulating tape 2 is wound with the constant width of approximately 33% to 25% of the original tape width, in particular together with the edge strip 6 '. In this case, the edge wedge which is formed in the usual winding with a slope during the winding back and forth and is penetrated by free spaces is avoided and all the free spaces 16 which otherwise arise are filled. For example, in Figure 2, the last left third of the tape is no longer wound in the first insulation layer 5, so that this insulation layer 5 there is only 2 layers. Filling in the resulting there in itself free space 16 is obtained so that the next layer of the edge strip 6 1 is wound with the remaining band "15 of constant width. The space 16 located below is thus filled. The length or number of turns with the remaining tape 15, which is then wound further without an incline, is dimensioned such that the surface of the second edge 4 'again runs at least almost parallel to the winding axis. Then the remaining band 15 cut off and glued or pinned with the end p 17 at its last position or possibly on the edge strip 6 '. For example, the insulating tapes 2 or the edge strips 6, 6 'can each be glued with a one-sided adhesive, in particular self-adhesive, insulating adhesive tape.

Der Rand 4' wird mit dem Randstreifen 6' bis zur Höhe H 2 von zwei Wicklungslagen hochgewickelt, was hier etwa der Höhe der ersten Isolierlage 5 und zweimal dem Durchmesser des Wicklungsdrahtes 8 entspricht. Anschließend wird der Randstreifen 6' abgeschnitten und sein Ende 18 (siehe Figur 3) festgeklebt.The edge 4 'is wound up by the edge strip 6' up to the height H 2 of two winding layers, which here corresponds approximately to the height of the first insulating layer 5 and twice the diameter of the winding wire 8. Then the edge strip 6 'is cut off and its end 18 (see FIG. 3) is glued on.

In die Ränder 4 bzw. 4' können auch noch weitere Randstreifen aus einem Material mit anderer Härte, Dichte, elektrischer oder mechanischer Festigkeit, gutem Saugvermögen bei später zu tränkenden Lagenwicklungen oder dgl. eingewickelt sein. Der Randstreifen 6, 6' kann eventuell auch dicker sein als die Dicke des Isolierbandes 2.In the edges 4 and 4 ', further edge strips made of a material with a different hardness, density, electrical or mechanical strength, good absorbency with layer windings to be impregnated later or the like can be wrapped. The edge strip 6, 6 'may also be thicker than the thickness of the insulating tape 2.

Nach Fertigstellung des zweiten Randes 4' wird die erste Wicklungslage 7 mit dem Wicklungsdraht 8 noch vollgewickelt bis der Wicklungsdraht 8 am Rand 4' innen anliegt. Hierauf wird unmittelbar das Isolierband 2 etwa im mittleren Drittel des Randes 4' mit vorgegebener Steigung angelegt und sowohl das Isolierband 2 als auch der Wicklungsdraht 8 werden jetzt mit umgekehrter Steigung und umgekehrter Vorschubrichtung in Richtung des Pfeiles 19 weitergewickelt. Dabei überholt das Isolierband 2 den Wicklungsdraht 8 infolge dessen größerer Steigung. An der rechten Seite kommt dann das Isolierband 2 wiederum zuerst an und es erfolgt der Randaufbau am Rand 4 mit doppelter Windungshöhe H 2, wie anhand des Randes 4' beschrieben. Dabei ergibt sich ein ähnlicher Randaufbau wie in Figur 2 links zwischen der zweiten und dritten Wicklungslage. Entsprechend wird in Pfeilrichtung 20, 21 usw. weitergewickelt, bis die errechnete Spulengröße der Lagenwicklung erreicht ist.After completion of the second edge 4 ', the first winding layer 7 is still fully wound with the winding wire 8 until the winding wire 8 lies against the inside of the edge 4'. Then the insulating tape 2 is applied directly in the middle third of the edge 4 'with a predetermined slope and both the insulating tape 2 and the winding wire 8 are now wound in the direction of arrow 19 with the opposite slope and feed direction. The insulating tape 2 overtakes the winding wire 8 due to its larger pitch. On the right side, the insulating tape 2 then arrives first and the edge is built up at the edge 4 with a double turn height H 2, as described using the edge 4 '. This results in a similar edge structure as in FIG. 2 on the left between the second and third winding layers. Correspondingly, winding continues in the direction of the arrows 20, 21, etc. until the calculated coil size of the layer winding is reached.

Soll eine Lagenwicklung mit Anzapfungen oder Ausleitungen gefertigt werden, dann wird an einer Anzapfung 22, beispielsweise durch Anschließen des Wicklungsdrahtes 8 oder Anlegen und Verbinden eines Anschlusses oder dgl., die Isolierlage 5, 5', 5" usw. dadurch möglichst gleichmäßig gemacht, daß entsprechend der zulässigen Lagenspannung die Steigung des Isolierbandes 2 im Bereich der Anzapfung 22, insbesondere beidseitig derselben, vergrößert wird.Es kann aber auch vorteilhaft sein, die Isolation dort zu verbessern. In diesem Fall wird die Steigung des Isolierbandes 2 in diesem Bereich verringert. Vorteilhaft wird mit steigender Lagenspannung die Steigung des Isolierbandes 2 in an sich bekannter Weise stufenweise oder kontinuierlich verringert. Insbesondere kann auch die Steigung des Isolierbandes 2 in mittleren Wicklungslagen kleiner gemacht werden als bei weiter außen liegenden Wicklungslagen, da dort infolge größerer Erwärmung oder dgl. höhere elektrische Belastungen auftreten können.If a layer winding with taps or diversions is to be produced, then the insulation layer 5, 5 ', 5 ", etc. is made as uniform as possible on a tap 22, for example by connecting the winding wire 8 or applying and connecting a connection or the like the pitch of the insulating tape 2 in the region of the tap 22, in particular on both sides thereof, is increased in accordance with the permissible positional tension. However, it can also be advantageous to improve the insulation there. In this case, the pitch of the insulating tape 2 is reduced in this area. Advantageous the slope of the insulating tape 2 is gradually or continuously reduced in a manner known per se as the layer voltage rises. In particular, the slope of the insulating tape 2 can also be made smaller in middle winding layers than in winding layers lying further outward, since there are higher electrical levels as a result of greater heating or the like Loads can occur.

Es kann aus elektrischen oder mechanischen Gründen vorteilhaft sein, die Schnittkante 23 des Restbandes 15 oder des gesamten schrägen Endabschnittes weiter innenliegend vorzusehen als der Außenkante 24 des Randstreifens 6 bzw. 6' entspricht. In diesem Falle stehen also die freien Enden 24 der Randstreifen 6, 6' über die Schnittkanten 23 des Restbandes 15 um 1 mm oder auch etwas mehr über, wie die Draufsicht auf die abgewickelte Isolationslage in Figur 3 zeigt.For electrical or mechanical reasons, it may be advantageous to provide the cutting edge 23 of the remaining strip 15 or of the entire inclined end section further inwards than the outer edge 24 of the edge strip 6 or 6 'corresponds to. In this case, the free ends 24 of the edge strips 6, 6 'protrude beyond the cut edges 23 of the remaining strip 15 by 1 mm or a little more, as the top view of the shows wrapped insulation layer in Figure 3.

Zur Verdeutlichung des Verfahrensablaufes ist in Figur 3 die Drehrichtung des Spulenkörpers 1 durch einen Pfeil P dargestellt.The direction of rotation of the coil former 1 is represented by an arrow P in FIG.

Um die Freiräume in den Randbereichen der Wicklungslagen besonders wirksam mit Isoliermaterial zu belegen, ist es günstig, wenn das Isolierband 2 nach dem Erreichen des maximalen Randüberstandes in entgegengesetzter Richtung zurückgeführt wird und wenn dann das Isolierband 2 bzw, das verbleibende Restband 15 solange ohne Vorschub weitergewickelt wird, bis der Rand 4' bis zur doppelten Höhe H 2 einer Wicklungslage gebildet ist.In order to cover the free spaces in the edge areas of the winding layers particularly effectively with insulating material, it is expedient if the insulating tape 2 is returned in the opposite direction after the maximum edge overhang has been reached and if the insulating tape 2 or the remaining remaining tape 15 is then wound on without any feed until the edge 4 'is formed up to twice the height H 2 of a winding layer.

Ein besonders guter mechanischer Verbund zwischen den Isolierbändern2 und den Randstreifen 6, 6' ergibt sich dann, wenn im Zeitpunkt des oder nach dem Beginn des Isolierbandzuschnittes ein Randstreifen 6' an- oder eingelegt und auf dem Isolierband 2 befestigt wird. Günstig ist es auch, wenn der Randstreifen 6' wenigsten teilweise zusammen mit dem Isolierband 2 bzw. mit dem Restband 15 bis zur doppelten Höhe H 2 einer Wicklungslage gewickelt wird.A particularly good mechanical bond between the insulating tapes 2 and the edge strips 6, 6 'is obtained if, at the time of or after the beginning of the insulating tape cutting, an edge strip 6' is put on or inserted and fastened on the insulating tape 2. It is also advantageous if the edge strip 6 'is at least partially wound together with the insulating tape 2 or with the remaining tape 15 up to twice the height H 2 of a winding layer.

Claims (14)

1. Verfahren zur Herstellung einer Lagenwicklung, insbesondere Hochspannungslagenwicklung, für Transformatoren, Meßwandler, Drosselspulen oder dgl. mit einer Vielzahl miteinander abwechselnder Lagen aus Isolierbändern (Isolierlagen) und aus einem oder mehreren Leitern (Wicklungslagen), wobei die jeweilige Isolierlage gleichzeitig mit der auf dieser aufgewickelten Wicklungslage in gleicher Richtung gewickelt wird und das Isolierband eine größere Breite aufweist als die Breite oder der Durchmesser eines Leiters und wobei ferner das Isolierband zumindest in einem größeren Abschnitt einer Isolierlage mit einer größeren Steigung als der Leiter gewickelt und an den Enden der Wicklungslagen jeweils ein Rand aus Isoliermaterial in doppelter Höhe einer Wicklungslage aufgebracht wird, dadurch gekennzeichnet, daß bei Erreichen der äußeren Stirnfläche (12) eines Lagenwicklungsrandes (4') das Isolierband (2) weitergewickelt und der über die Stirnfläche (12) überstehende Bandteil (13) des Isolierbandes (2) kontinuierlich abgeschnitten wird und daß dann das Isolierband (2) bzw. das verbleibendes Restband (15) solange ohne Vorschub weitergewickelt wird, bis die ansonsten am Lagenwicklungsrand (4') entstehenden Freiräume ausgefüllt sind.1. A method for producing a layer winding, in particular high-voltage layer winding, for transformers, measuring transducers, choke coils or the like. With a plurality of alternating layers of insulating tapes (insulating layers) and one or more conductors (winding layers), the respective insulating layer simultaneously with that on this wound winding layer is wound in the same direction and the insulating tape has a greater width than the width or the diameter of a conductor and wherein the insulating tape is wound at least in a larger portion of an insulating layer with a larger pitch than the conductor and at the ends of the winding layers Edge of insulating material is applied at twice the height of a winding layer, characterized in that when the outer end face (12) of a layer winding edge (4 ') is reached, the insulating tape (2) is wound further and the tape part (13) of the insulating tape protruding from the end face (12) des (2) is cut off continuously and that the insulating tape (2) or the remaining remaining tape (15) is then continued to be wound without feed until the free spaces which otherwise arise at the layer winding edge (4 ') are filled. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß von dem Isolierband (2) bzw. dem Restband (15) gleichzeitig der Rand (4') bis zur doppelten Höhe (H 2) einer Wicklungslage gebildet wird.2. The method according to claim 1, characterized in that the insulating tape (2) or the remaining tape (15) at the same time the edge (4 ') up to twice the height (H 2) of a winding layer is formed. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Isolierband (2) nach dem Erreichen des maximalen Randüberstandes in entgegengesetzter Richtung zurückgeführt wird und daß dann das Isolierband (2) bzw. das verbleibende Restband (15) solange ohne Vorschub weitergewickelt wird, bis der Rand (4') bis zur doppelten Höhe (H 2) einer Wicklungslage gebildet ist.3. The method according to claim 1 or 2, characterized in that the insulating tape (2) is returned in the opposite direction after reaching the maximum edge overhang and then the insulating tape (2) or the remaining residual tape (15) is continued to be wound as long without feed until the edge (4 ') is formed up to twice the height (H 2) of a winding layer. 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der überstehende Bandteil (13) des Isolierbandes (2) solange zugeschnitten wird, bis das verbleibende Restband (15) noch ein Drittel bis ein Viertel der ursprünglichen Bandbreite beträgt.4. The method according to any one of claims 1 to 3, characterized in that the projecting tape part (13) of the insulating tape (2) is cut until the remaining tape (15) is still a third to a quarter of the original bandwidth. 5. Verfahren nach einem der Ansprüche 1 bis 4, Beginns dadurch gekennzeichnet, daß im Zeitpunkt desvoder nach dem Beginn des Isolierbandzuschnittes ein Randstreifen (6') an- oder eingelegt und auf dem Isolierband (2) befestigt wird und daß der Randstreifen (6') wenigstens teilweise zusammen mit dem Isolierband (2) bzw. dem Restband (15) bis zur doppelten Höhe (H 2) einer Wicklungslage gewickelt wird.5. The method according to any one of claims 1 to 4, characterized in that at the time desvoder after the beginning of the insulating tape cutting an edge strip (6 ') or inserted and attached to the insulating tape (2) and that the edge strip (6' ) is at least partially wound together with the insulating tape (2) or the remaining tape (15) up to twice the height (H 2) of a winding layer. 6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß nach der Fertigstellung des Randes (4') die erste Wicklungslage (7) mit dem Wicklungsdraht (8) vollgewickelt wird und daß anschließend das Isolierband (2) an dem fertigen Rand (4') angelegt und unter umgekehrter Steigung sowohl des Isolierbandes (2) als auch des Wicklungsdrahtes (8) beide in entgegengesetzter Richtung zumindest über einen Teil der Wicklungslage gemeinsam weitergewickelt werden.6. The method according to any one of claims 1 to 5, characterized in that after the completion of the edge (4 '), the first winding layer (7) with the winding wire (8) is fully wound and that the insulating tape (2) on the finished edge (4 ') and with the reverse slope of both the insulating tape (2) and the winding wire (8) are both further wound together in the opposite direction at least over part of the winding layer. 7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß mit steigender Lagenspannung die Steigung des Isolierbandes (2) stufenweise oder kontinuierlich verkleinert wird.7. The method according to any one of claims 1 to 6, characterized in that the slope of the insulating tape (2) is gradually or continuously reduced with increasing layer tension. 8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß im Bereich von Anzapfungen (22) oder Ausleitungen des Leiters (8) die Steigung des Isolierbandes (2) beidseitig dieser Lagenbereiche längs eines bestimmten Wicklungsabschnittes vergrößert wird.8. The method according to any one of claims 1 to 7, characterized in that in the region of taps (22) or diversions of the conductor (8) the slope of the insulating tape (2) is increased on both sides of these layer areas along a certain winding section. 9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß Isolierbänder (2) aus einer Kunststoff-Isolierfolie, aus Papier oder aus Preßspan verwendet werden.9. The method according to any one of claims 1 to 8, characterized in that insulating tapes (2) made of a plastic insulating film, paper or chipboard are used. 10. Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß Randstreifen (6') erst nach Verkleinerung der Breite des Isolierbandes (2) durch Beschneiden des überstehenden Bandteiles (13) auf 15 % bis 30 % der ursprünglichen Bandbreite ein-oder angelegt und gegebenenfalls zusätzlich befestigt werden.10. The method according to any one of claims 1 to 9, characterized in that edge strips (6 ') or only after reducing the width of the insulating tape (2) by trimming the protruding tape part (13) to 15% to 30% of the original bandwidth created and if necessary additionally fastened. 11. Verfahren nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß weitere Randstreifen (6') gleicher Breite, aber unterschiedlicher Härte und/ oder Dichte und/oder elektrischer Isoliereigenschaft und/oder mechanischer Festigkeit in den Rand (4') mit eingewickelt werden.11. The method according to any one of claims 1 to 10, characterized in that further edge strips (6 ') of the same width, but different hardness and / or density and / or electrical insulating property and / or mechanical strength in the edge (4') with wrapped will. 12. Lagenwicklung mit gemäß einem oder mehreren der Ansprüche 1 bis 11 hergestellten Wicklungslagen, dadurch gekennzeichnet, daß die beim Wickeln der Isolierlagen (5, 5', 5", 5r") mit vorgegebener Steigung an den Rändern (4, 4') zu den freien Enden der Wicklungslagen auftretenden Freiräume (16) durch koaxiale Windungen des vom Isolierband (2) verbleibenden Restbandes (15) in den äußeren Randzonen der Ränder (4, 4') ausgeglichen sind.12. layer winding with winding layers produced according to one or more of claims 1 to 11, characterized in that when winding the insulating layers (5, 5 ', 5 ", 5r") with a predetermined slope at the edges (4, 4') the free ends of the winding layers occurring free spaces (16) are compensated by coaxial turns of the remaining tape (15) remaining from the insulating tape (2) in the outer edge zones of the edges (4, 4 '). 13. Lagenwicklung nach Anspruch 12, dadurch gekennzeichnet, daß die Ränder (4, 4') zumindest teilweise aus gesonderten und für sich gewickelten Randstreifen (6, 6') bestehen.13. Layer winding according to claim 12, characterized in that the edges (4, 4 ') at least partially consist of separate and individually wound edge strips (6, 6'). 14. Lagenwicklung nach Anspruch 12 oder 13, dadurch gekennzeichnet, daß das Restband (15) eine konstante Breite aufweist und ohne Steigung in einer oder mehreren Windungen in die Ränder (4, 4') eingewickelt ist.14. Layer winding according to claim 12 or 13, characterized in that the remaining tape (15) has a constant width and is wrapped in one or more turns in the edges (4, 4 ') without pitch.
EP85109430A 1984-08-04 1985-07-26 Method of manufacturing a sheet winding and sheet winding manufactured according to this method Expired EP0171688B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85109430T ATE42859T1 (en) 1984-08-04 1985-07-26 METHOD OF MAKING A PLY WRAP AND PLY WRAP MADE BY THIS METHOD.

Applications Claiming Priority (2)

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DE19843428893 DE3428893A1 (en) 1984-08-04 1984-08-04 METHOD FOR PRODUCING A LAYER WINDING AND LAYER WINDING PRODUCED BY THIS METHOD
DE3428893 1984-08-04

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EP0171688A1 true EP0171688A1 (en) 1986-02-19
EP0171688B1 EP0171688B1 (en) 1989-05-03

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US (2) US4653178A (en)
EP (1) EP0171688B1 (en)
JP (1) JPH0628212B2 (en)
AT (1) ATE42859T1 (en)
DE (2) DE3428893A1 (en)

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JP2593101B2 (en) * 1990-06-08 1997-03-26 サンケン電気株式会社 Coil device
US5488344A (en) * 1992-11-03 1996-01-30 Bisbee; Philip I. Toroidal transformer insulation preforms
US5604971A (en) * 1993-09-30 1997-02-25 Steiner; Robert E. manufacturing method for variable laminations used in electro-magnetic induction devices
US5640752A (en) * 1993-09-30 1997-06-24 Steiner; Robert E. Controlled adjustable manufacturing method for variable laminations used in electro-magnetic induction devices
US5575932A (en) * 1994-05-13 1996-11-19 Performance Controls, Inc. Method of making densely-packed electrical conductors
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JP2001267133A (en) * 2000-03-15 2001-09-28 Murata Mfg Co Ltd Multilayer inductor
DE102008007676A1 (en) * 2008-02-07 2009-08-13 Abb Technology Ag Method for producing a winding block for a coil of a transformer and winding block produced therewith
DE102008033123A1 (en) * 2008-07-15 2010-01-21 Abb Ag Winding for a transformer
GB2564453A (en) * 2017-07-11 2019-01-16 Invertek Drives Ltd A transformer and a method of manufacturing a transformer
CN109103015B (en) * 2018-10-15 2023-08-08 江苏北辰互邦电力股份有限公司 Automatic winding machine for bidirectionally wound power transformer coil and winding method thereof

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ATE42859T1 (en) 1989-05-15
EP0171688B1 (en) 1989-05-03
JPH0628212B2 (en) 1994-04-13
DE3570006D1 (en) 1989-06-08
US4733213A (en) 1988-03-22
US4653178A (en) 1987-03-31
JPS6147613A (en) 1986-03-08
DE3428893A1 (en) 1986-02-13

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