EP0761009A1 - Process and device for winding a closed ring core for high-power transformers and chokes - Google Patents

Process and device for winding a closed ring core for high-power transformers and chokes

Info

Publication number
EP0761009A1
EP0761009A1 EP94930197A EP94930197A EP0761009A1 EP 0761009 A1 EP0761009 A1 EP 0761009A1 EP 94930197 A EP94930197 A EP 94930197A EP 94930197 A EP94930197 A EP 94930197A EP 0761009 A1 EP0761009 A1 EP 0761009A1
Authority
EP
European Patent Office
Prior art keywords
winding
ring core
guide
core
ring
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
EP94930197A
Other languages
German (de)
French (fr)
Other versions
EP0761009B1 (en
Inventor
Volker Hanser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hpt Hanser Transformatoren GmbH
Original Assignee
HANSER Volker
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HANSER Volker filed Critical HANSER Volker
Publication of EP0761009A1 publication Critical patent/EP0761009A1/en
Application granted granted Critical
Publication of EP0761009B1 publication Critical patent/EP0761009B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H01F41/06—Coil winding
    • H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores

Definitions

  • the invention relates to a method and an apparatus for winding a closed toroidal core for transformers and chokes of high power.
  • toroidal cores are used only in special cases, and in particular mostly toroidal cores with separation points, which are wound by hand.
  • the necessary conductor cross-sections require so much effort when winding that transformers of even greater power cannot be realized with toroidal cores.
  • toroidal cores would be desirable at high outputs, for example in the MVA area, particularly for energy distribution networks, since the significantly lower losses and the other known advantages would have a particularly advantageous effect when using toroidal transformers, and would therefore be more economical Benefit would exist.
  • the windings In the case of transformers of very high power, the windings generally consist of tapes which are very wide for the necessary conductor cross sections, so that the thickness of the conductors can be reduced to such an extent that the band-shaped conductor can still be wound around the core and thereby bent.
  • the object of the present invention is to provide a method and a winding device for closed toroidal cores, with which also very high power transformers for example for distribution networks.
  • the effort for this should be comparatively low.
  • the conductor provided for a winding or a partial winding is applied to a winding roller that passes through the ring core opening together with the winding material, and this winding roller then leads around the ring core and through the inner opening and thereby winds the winding from the winding winding is wound onto the toroidal core -
  • a first winding segment is applied to a ring core radial section, with several layers of a conductor and an intermediate insulation being applied to the ring core radial section in the creation of this winding segment by means of several revolving winding rollers.
  • the ring core and the winding device are then rotated relative to one another in order to apply a further winding segment to another ring core radial section, and the ring core is then wrapped with a further winding.
  • this process can either be used to wind the respective winding in one operation or it is also possible to distribute the conductor cross-section over several windings and to apply these windings one after the other.
  • the winding or partial winding to be applied in one winding operation is first applied to the winding roller and this is then passed around the ring and through the ring opening while the electrical conductor is being unwound.
  • the size of the winding roll with the material to be wound is based on the clear internal cross-section of the ring core used.
  • toroidal core transformers and chokes can also be built for the highest performance with reasonable effort. If required, toroidal core transformers can also be implemented in a modular manner from a plurality of smaller basic units for very high outputs, which results in advantages in particular for transport and assembly on site.
  • a further development of the method according to the invention provides that windings are wound around the ring core, that a further ring core provided with air gaps is then preferably arranged concentrically in the first ring core and that both ring cores are then wound with common windings. In this way, a transformer can be wound simultaneously with an integrated choke.
  • the device according to the invention for carrying out the method provides that it has a guide encompassing the ring leg to be wound and a plurality of rollable winding rolls with winding material, i.e. with a conductor or with intermediate insulation, which can be transported along this guide through the ring core, and that the guide leads to Gripping the ring leg has a separation point and can therefore be opened and closed like a pincer.
  • the guide of the winding machine is first opened like a pincer and then, after closing, engages around a ring core portion from one side. The winding rollers then run around this guide, the electrical conductor wound on the winding roll and the intermediate insulation being simultaneously unwound from the respective winding roll and wound onto the ring core.
  • the conductor cross section used for a winding process and the conductor length depend in particular on the existing opening cross section of the toroidal core.
  • a division according to the required total cross section of the high and low voltage windings into several partial windings is carried out next to one another or also one on top of the other.
  • FIG. 1 is a side view of a winding machine when winding a ring core
  • Fig. 3 is a plan view of a partially wound ring core
  • Fig. 4 and 5 plan views of ring cores with an air gap
  • FIGS. 7 and 8 different embodiments of end coupling layers located on the ring core 9 to 11 winding conductor ends in different shaping phases.
  • a winding device 1 shown in FIG. 1 is used for winding closed toroidal cores 2 for transformers or chokes.
  • this winding device is intended to wind ring cores 2 of high-performance transformers whose output is above 120 KVA, for example.
  • the windings to be applied have considerable conductor cross sections that are difficult to handle during winding.
  • the winding device 1 essentially has a guide 3 with revolving winding rolls 4.
  • the guide 3 encompasses, as can be clearly seen in FIG. 1, the ring core leg 5, which in the exemplary embodiment consists of wound electrical sheet 6.
  • the guide 3 is in the form of pliers and has a separating point 7 and a further separating point, not visible here, or a swivel joint opposite the Separation point 7. The guide 3 can thus be opened and placed around the ring core leg 5.
  • the winding rollers 4,4a rotate in the direction of arrow Pf 1.
  • the front winding roller 4 in the direction of rotation carries the electrical conductor 8 intended for the winding to be applied, while insulation material 26 for the layer insulation is wound on a subsequent winding roller 4a.
  • the winding rollers 4, 4a run along the guide 3, the material located on the winding rollers is unwound and in layers wound on the ring core leg 5 in the segment provided for this purpose
  • the entire length of the electrical conductor required for a winding usually does not fit on a winding roller 4, or the winding roller 4 wound therewith does not fit through the inner opening 9 of the ring core 2, as is well shown in FIG 3 recognizable, several winding segments 10 distributed over the circumference of the ring core 2.
  • a sufficient amount of winding material can be applied to the winding roll 4 for each of these partial windings.
  • the partial windings or winding segments 10 are then connected to one another, so that the undervoltage winding and possibly also the high-voltage winding are formed from a plurality of partial windings.
  • the division of the high-voltage and low-voltage windings with respect to the arrangement of the individual winding segments 10 can be provided practically as desired. For example, it is possible to assign high-voltage and low-voltage windings alternately next to one another or in groups to one another. As a result, the degree of coupling can be varied within wide limits.
  • both the high-voltage and the low-voltage winding could be in circulation, the first winding roller being provided, for example, for the undervoltage winding, the second winding roller for the insulation and the third winding roller for the high-voltage winding.
  • the annular guide 3 here has two guide rails 11, 11a arranged concentrically at a distance from one another, between which a circumferential transport means 12 connected to a drive is guided (FIG. 2).
  • a circulating chain or a belt or the like can be used as the transport means 12, on which the coupling points 13 for winding rolls are located.
  • the winding rolls have winding bodies 14 which are rotatably mounted on an axis 15.
  • the axis is designed as a coupling part and can therefore preferably engage in a rotationally fixed manner at the coupling points 13 of the means of transport 12.
  • a fastening screw 16 is provided to secure the plug connection.
  • the winding body 14 is rotatably mounted on the axis 15 and a preferably adjustable braking device 17 is provided, with which the winding body can be braked when the electrical conductor is unwound. With the brake device 17, the winding tension and thus the strength of the winding to be applied can be controlled.
  • a roller bearing 18 which engages between the guide rails 11, 11a is also provided thereon.
  • an elastic decoupling layer 19 is applied to the ring core 2, which consists, for example, of wound electrical sheet 6. This is used to compensate for thermal expansion, especially when the transformer is cast in casting resin after winding.
  • 1 also shows a holding device 20 for the ring core 2 to be wound, by means of which the ring core 2 can be held and possibly also rotated.
  • the ring core 2 can be rotated in the circumferential direction and then another winding can be applied.
  • the relative rotary movement between the ring core and the winding device 1 is carried out by the winding device itself by being able to be positioned in the circumferential direction of the ring core 2.
  • the end of the band-shaped electrical conductor 8 is folded around an oblique fold line 21 lying in the band plane, so that the end then runs at an angle to the rest of the conductor 8, preferably at right angles.
  • This angled, folded end can then, as shown in FIG. be halved in width by repositioning. This can be repeated until a compact connection end 22 is created which is mechanically stable and can be connected to the connection ends of adjacent windings, which are also formed in this way, by means of press, welding or soldering technology. This therefore considerably simplifies the interconnection of the individual part windings.
  • the transformer produced by the method according to the invention can also be equipped with an integrated choke.
  • a part of the windings or the winding segments 10 is first applied to the ring core 2.
  • a further ring core 2a or 2b (compare FIGS. 4 and 5), which are provided with air gaps 23, is then assigned to the partially wound ring core 2 and both ring cores are then wrapped together with further windings
  • Fig. 6 shows a step ring core 2c shown in section, by means of which undesired winding spaces between the ring core and the winding can be avoided.
  • the course of the provided decoupling layers 19 can also be clearly seen here.
  • FIG. 7 and 8 show intermediate layers 24 located between the ring core 2 and a winding to be applied (not shown here), the cooling channels 25 Has cooling of the windings and the core. From the outside, these cooling channels 25 can be supplied with a cooling medium.
  • FIG. 7 shows an embodiment in which the intermediate layer 24 is made of elastic material and thus simultaneously forms the decoupling layer 19.
  • FIG. 8 shows another embodiment where the cooling channels 25 are accommodated in an intermediate layer 24 separated from the decoupling layer 19.
  • the decoupling layer on the radial and the axial sides of the ring core can be designed differently in order to influence the magnetic properties of the core through different pressurization.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Insulating Of Coils (AREA)

Abstract

A winding device (1) is used to wind a closed ring core for high-power transformers and chokes with electrical conductors (8). To this end, the winding device has a guide (3) surrounding the ring-core shank (5) to be wound and a plurality of unwindable winding rollers (4, 4a) movable along said guide through the ring core. The preferably strip winding material, i.e. conductors (8) or intermediate insulation (26), which is wound on the ring core shank (5) from the winding roller (4) during its rotation, is on said winding roller (4, 4a). It is thus possible to wind electrical conductors and insulation in layers in one cycle. The guide (3) is in the form of openable and closable tongs with a separating point (7). The low and upper voltage windings can thereby be applied to the ring core (2) in partial windings.

Description

Verfahren und Vorrichtung zum Bewickeln eines geschlossenen Ringkerns für Transformatoren und Drosseln hoher LeistungenMethod and device for winding a closed toroidal core for transformers and chokes of high power
Die Erfindung bezieht sich auf ein Verfahren sowie eine Vorrichtung zum Bewickeln eines geschlossenen Ringkernes für Transformatoren und Drosseln hoher Leistungen.The invention relates to a method and an apparatus for winding a closed toroidal core for transformers and chokes of high power.
Verfahren zum maschinellen Bewickeln von Ringkernen kleiner Baugrösse bis zu einer Leistung von zum Beispiel 16 KVA sind bereits bekannt Die dabei verwendeten Draht¬ querschnitte beziehungsweise das hierbei verwendete Runddraht- Wickelmaterial lässt sich noch gut für den Wickelvorgang formen und verarbeiten.Processes for the mechanical winding of toroidal cores of small sizes up to an output of, for example, 16 KVA are already known. The wire cross sections used here or the round wire winding material used here can still be shaped and processed well for the winding process.
Bei Transformatoren grösserer Leistung bis zum Beispiel 120 KVA werden nur in Sonderfallen Ringkerne und dabei insbesondere meist Ringkerne mit Trennstellen verwendet, die in aufwendiger Handarbeit bewickelt werden. Die hierbei notwendigen Leiterquerschnitte erfordern bei Bewickeln einen so grossen Aufwand, dass Transformatoren noch grösserer Leistung nicht mit Ringkernen realisiert werden.In the case of transformers with a higher output, for example up to 120 KVA, toroidal cores are used only in special cases, and in particular mostly toroidal cores with separation points, which are wound by hand. The necessary conductor cross-sections require so much effort when winding that transformers of even greater power cannot be realized with toroidal cores.
Von der elektrotechnischen Seite her wären Ringkerne aber bei hohen Leistungen, zum Beispiel im MVA-Bereich insbesondere für Energieverteilungsnetze wünschenswert, da sich die wesentlich geringeren Verluste und die anderen, bekannten Vorteile bei Verwendung von Ringkerntransformatoren hier ganz besonders vorteilhaft auswirken würden und damit ein hoher volkswirtschaftlicher Nutzen vorhanden wäre.From the electrotechnical point of view, however, toroidal cores would be desirable at high outputs, for example in the MVA area, particularly for energy distribution networks, since the significantly lower losses and the other known advantages would have a particularly advantageous effect when using toroidal transformers, and would therefore be more economical Benefit would exist.
Bei Transformatoren sehr grosser Leistung bestehen die Wicklungen in der Regel aus Bändern, die für die notwendigen Leiterquerschnitte sehr breit sind, damit die Dicke der Leiter soweit reduziert werden kann, dass der bandförmige Leiter noch um den Kern gewickelt und dabei gebogen werden kann.In the case of transformers of very high power, the windings generally consist of tapes which are very wide for the necessary conductor cross sections, so that the thickness of the conductors can be reduced to such an extent that the band-shaped conductor can still be wound around the core and thereby bent.
Durch die ringförmige Geometrie des Ringkemes bei Ringkemtransformatoren lassen sich aber solche breiten, zum Beispiel einen Meter breite, Bänder nicht mehr verwenden, da bei dem vorgegebenen Krümmungsradius die Wicklung einen entsprechend grossen Abstand vom Kern haben würde beziehungsweise nicht mehr auf den Kern wegen des begrenzten, inneren Durchtrittsquerschnittes, passtDue to the ring-shaped geometry of the ring core in the case of ring core transformers, such broad tapes, for example one meter wide, can no longer be used, since given the radius of curvature, the winding would have a correspondingly large distance from the core or would no longer be on the core due to the limited inner cross section, fits
Aufgabe der vorliegenden Erfindung ist es, ein Verfahren und eine Wickelvorrichtung für geschlossene Ringkerne zu schaffen womit auch Transformatoren sehr hoher Leistung zum Beispiel für Verteilungsnetze gefertigt werden können. Der Aufwand hierfür soll vergleichsweise gering sein.The object of the present invention is to provide a method and a winding device for closed toroidal cores, with which also very high power transformers for example for distribution networks. The effort for this should be comparatively low.
Zur Lösung dieser Aufgabe wird erfindungsgemäss insbesondere vorgeschlagen, dass der für eine Wicklung oder eine Teilwicklung vorgesehene Leiter auf eine zusammen mit dem Wickelgut durch die Ringkernöffnung hindurchpassende Wickelrolle aufgebracht und diese Wickelrolle anschliessend um den Ringkern und durch die Innenöffung hindurchge¬ führt und dabei die Wicklung von der Wickel-tolle auf den Ringkern umgewickelt wird- Dabei wird auf einen Ringkem-Radialabschnitt ein erstes Wicklungssegment aufgebracht, wobei bei der Erstellung dieses Wicklungssegments mehrere Lagen eines Leiters und einer Zwischenisolierung durch mehrere umlaufende Wickelrollen auf den Ringkem- Radialabschnitt aufgebracht werden. Anschliessend wird zum Aufbringen eines weiteren Wicklungssegments an einem anderen Ringkern-Radialabschnitt der Ringkem und die Wickelvorrichtung relativ zueinander verdreht und danach wird das Umwickeln des Ringkerns mit einer weiteren Wicklung vorgenommen.To achieve this object, it is proposed according to the invention in particular that the conductor provided for a winding or a partial winding is applied to a winding roller that passes through the ring core opening together with the winding material, and this winding roller then leads around the ring core and through the inner opening and thereby winds the winding from the winding winding is wound onto the toroidal core - a first winding segment is applied to a ring core radial section, with several layers of a conductor and an intermediate insulation being applied to the ring core radial section in the creation of this winding segment by means of several revolving winding rollers. The ring core and the winding device are then rotated relative to one another in order to apply a further winding segment to another ring core radial section, and the ring core is then wrapped with a further winding.
Je nach dem für die notwendige Leistung erforderüchen Leiterquerschnitt kann mit diesem Verfahren die jeweilige Wicklung entweder in einem Arbeitsgang gewickelt werden oder aber es besteht auch die Möglichkeit, den Leiterquerschnitt auf mehrere Wicklungen zu verteilen und diese Wicklungen nacheinander aufzubringen.Depending on the conductor cross-section required for the required power, this process can either be used to wind the respective winding in one operation or it is also possible to distribute the conductor cross-section over several windings and to apply these windings one after the other.
Die jeweils in einem Wickelvorgang aufzubringende Wicklung oder Teilwicklung wird dabei zunächst auf die Wickelrolle aufgebracht und diese dann bei gleichzeitigem Abwickeln des elektrischen Leiters um den Ring und durch die Ringöffnung hindurchge¬ führt. Somit richtet sich die Grosse der Wickelrolle mit darauf befindlichem Wickelgut nach dem lichten Innenquerschnitt des verwendeten Ringkemes.The winding or partial winding to be applied in one winding operation is first applied to the winding roller and this is then passed around the ring and through the ring opening while the electrical conductor is being unwound. The size of the winding roll with the material to be wound is based on the clear internal cross-section of the ring core used.
Durch dieses Verfahren und die bedarfsweise Aufteilung der Wicklung in mehrere Teil¬ wicklungen lassen sich Ringkemtransformatoren und Drosseln auch für höchste Leistun¬ gen mit vertretbarem Aufwand bauen. Bedarfsweise können für sehr grosse Leistungen Ringkemtransformatoren auch modulartig aus mehreren kleineren Grundeinheiten reali¬ siert werden, was insbesondere für den Transport und die Montage vor Ort Vorteile ergibt.With this method and the division of the winding into several partial windings as required, toroidal core transformers and chokes can also be built for the highest performance with reasonable effort. If required, toroidal core transformers can also be implemented in a modular manner from a plurality of smaller basic units for very high outputs, which results in advantages in particular for transport and assembly on site.
Eine Weiterbildung des erfindungsgemässen Verfahrens sieht vor, dass Wicklungen um den Ringkem gewickelt werden, dass anschliessend ein mit Luftspalten versehener, weitere Ringkern bei dem ersten Ringkem vorzugsweise konzentrisch angeordnet wird und dass anschliessend beide Ringkerne mit gemeinsamen Wicklungen bewickelt werden. Auf diese Weise lässt sich ein Transformator gleichzeitig mit integrierter Drossel wickeln.A further development of the method according to the invention provides that windings are wound around the ring core, that a further ring core provided with air gaps is then preferably arranged concentrically in the first ring core and that both ring cores are then wound with common windings. In this way, a transformer can be wound simultaneously with an integrated choke.
Die erfindungsgemässe Vorrichtung zur Durchführung des Verfahrens sieht vor, dass sie eine den zu bewickelnden Ringschenkel umgreifende Führung sowie mehrere, entlang dieser Führung durch den Ringkem hindurch transportierbare, abrollbare Wickelrolle mit Wickelgut, also mit Leiter bzw. mit Zwischenisolation, aufweist und dass die Führung zum Umgreifen des Ringschenkels eine Trennstelle aufweist und somit zangenförmig offen- und schliessbar ist Für das Bewickeln eines geschlossenen Ringkernes wird die Führung der Wickelmaschine zunächst zangenartig geöffnet und umgreift dann nach dem Schliessen von einer Seite einen Ringkem- Abschnitt Die Wickelrollen laufen dann entlang dieser Führung um, wobei gleichzeitig nacheinander der auf der Wickelrolle aufgewickelte elektrische Leiter und die Zwischenisolation von der jeweiligen Wickelrolle abgewickelt und auf den Ringkem aufgewickelt wird.The device according to the invention for carrying out the method provides that it has a guide encompassing the ring leg to be wound and a plurality of rollable winding rolls with winding material, i.e. with a conductor or with intermediate insulation, which can be transported along this guide through the ring core, and that the guide leads to Gripping the ring leg has a separation point and can therefore be opened and closed like a pincer. For winding a closed ring core, the guide of the winding machine is first opened like a pincer and then, after closing, engages around a ring core portion from one side. The winding rollers then run around this guide, the electrical conductor wound on the winding roll and the intermediate insulation being simultaneously unwound from the respective winding roll and wound onto the ring core.
Der für einen Wickelvorgang verwendete Leiterquerschnitt sowie die Leiterlänge richten sich insbesondere nach dem vorhandenen Oeffnungsquerschnitt des Ringkernes. Entsprechend wird eine Aufteilung gemäss dem erforderlichen Gesamtquerschnitt der Ober- beziehungsweise Unterspannungswicklung auf mehrere Teilwicklungen nebeneinander bzw. auch aufeinander vorgenommen.The conductor cross section used for a winding process and the conductor length depend in particular on the existing opening cross section of the toroidal core. Correspondingly, a division according to the required total cross section of the high and low voltage windings into several partial windings is carried out next to one another or also one on top of the other.
Ausgestaltungen der Erfindung sind in den Unteransprüchen aufgeführt. Nachstehend ist die Erfindung mit ihren wesentiichen Einzelheiten anhand der Zeichnungen noch näher erläutert.Embodiments of the invention are listed in the subclaims. The invention with its essential details is explained in more detail with reference to the drawings.
Es zeigt stärker schematisiert:It shows more schematically:
Fig. 1 eine Seitenansicht einer Wickelmaschine beim Bewickeln eines Ringkemes,1 is a side view of a winding machine when winding a ring core,
Fig. 2 eine Detaildarstellung einer Wickelrolle,2 is a detailed view of a winding roll,
Fig. 3 eine Aufsicht eines teilweise bewickelten Ringkemes, Fig. 4 und 5 Aufsichten von Ringkernen mit LuftspaltFig. 3 is a plan view of a partially wound ring core, Fig. 4 and 5 plan views of ring cores with an air gap
Fig. 6 eine Querschnitt eines Ringkemes mit Querschnittabstufungen, Fig. 7 und 8 unterschiedliche Ausführungsformen von auf dem Ringkem befindlichen Endkoppelschichten Fig. 9 bis 11 Wickelleiterenden in unterschiedlichen Formungsphasen.6 shows a cross section of a ring core with cross-sectional gradations, FIGS. 7 and 8 different embodiments of end coupling layers located on the ring core 9 to 11 winding conductor ends in different shaping phases.
Eine in Fig. 1 gezeigte Wickelvorrichtung 1 dient zum Bewickeln von geschlossenen Ringkernen 2 für Transformatoren oder Drosseln. Insbesondere sollen mit dieser Wickelvorrichtung Ringke-rne 2 von Hochleistungstransfoxmatoren gewickelt werden, deren Leistung beispielsweise oberhalb von 120 KVA liegt. Für solche Transformatoren weisen die aufzubringenden Wicklungen erhebliche Leiterquerschnitte auf, die nur noch schwer beim Bewickeln handhabbar sind.A winding device 1 shown in FIG. 1 is used for winding closed toroidal cores 2 for transformers or chokes. In particular, this winding device is intended to wind ring cores 2 of high-performance transformers whose output is above 120 KVA, for example. For such transformers, the windings to be applied have considerable conductor cross sections that are difficult to handle during winding.
Die erfindungsgemässe Wickelvorrichtung 1 weist im wesentlichen eine Führung 3 mit umlaufenden Wickelrollen 4 auf. Die Führung 3 umgreift wie gut in Fig. 1 erkennbar, den Ringkem-Schenkel 5, der im Ausführungsbeispiel aus gewickeltem Elektroblech 6 besteht Die Führung 3 ist zangenförmig ausgebildet und weist eine Trennstelle 7 sowie eine weitere, hier nicht sichtbare Trennstelle oder ein Schwenkgelenk gegenüber der Trennstelle 7 auf. Die Führung 3 kann somit aufgeklappt und um den Ringkem-Schenkel 5 herum gelegt werden.The winding device 1 according to the invention essentially has a guide 3 with revolving winding rolls 4. The guide 3 encompasses, as can be clearly seen in FIG. 1, the ring core leg 5, which in the exemplary embodiment consists of wound electrical sheet 6. The guide 3 is in the form of pliers and has a separating point 7 and a further separating point, not visible here, or a swivel joint opposite the Separation point 7. The guide 3 can thus be opened and placed around the ring core leg 5.
Die Wickelrollen 4,4a laufen in Richtung des Pfeiles Pf 1 um. Die in Umlaufrichtung vordere Wickelrolle 4 trägt den für die aufzubringende Wicklung bestimmten elektrischen Leiter 8 während auf einer nachfolgenden Wickelrolle 4a Isolationsmaterial 26 für die Lagenisolierung aufgewickelt ist Beim Umlauf der Wickelrollen 4, 4a entlang der Führung 3 wird das auf den Wickelrollen befindliche Material abgewickelt und lagenweise auf den Ringkem-Schenkel 5 in dem dafür vorgesehenen Segment aufgewickeltThe winding rollers 4,4a rotate in the direction of arrow Pf 1. The front winding roller 4 in the direction of rotation carries the electrical conductor 8 intended for the winding to be applied, while insulation material 26 for the layer insulation is wound on a subsequent winding roller 4a. When the winding rollers 4, 4a run along the guide 3, the material located on the winding rollers is unwound and in layers wound on the ring core leg 5 in the segment provided for this purpose
Da für die Transformatoren hoher Leistung die gesamte Länge des für eine Wicklung erforderlichen elektrischen Leiters meist nicht auf eine Wickelrolle 4 passt beziehungs¬ weise die damit gewickelte Wickelrolle 4 dann nicht durch die Innenöffnung 9 des Ring¬ kemes 2 passt, werden, wie gut in Fig. 3 erkennbar, mehrere Wicklungssegmente 10 am Umfang des Ringkemes 2 verteilt aufgebracht. Für jede dieser Teilwicklungen kann eine ausreichende Menge von Wickelmaterial auf die Wickelrolle 4 aufgebracht werden. Die Teilwicklungen oder Wicklungssegmente 10 werden dann miteinander verschaltet, so dass die Unterspannungswicklung und auch gegebenenfalls die Oberspannungswicklung aus mehreren Teil wicklungen gebildet wird. Die Aufteilung der Oberspannungs- und Unterspannungswicklungen bezüglich der Anordnung der einzelnen Wicklungssegmente 10 kann praktisch beliebig vorgesehen sein. Beispielsweise besteht die Möglichkeit, Oberspannungs- und Unterspannungswicklungen jeweils in Segmenten abwechselnd nebeneinander oder aber gruppenweise einander zuzuweisen. Dadurch kann der Kopplungsgrad in weiten Grenzen variiert werden.Since for the high-power transformers the entire length of the electrical conductor required for a winding usually does not fit on a winding roller 4, or the winding roller 4 wound therewith does not fit through the inner opening 9 of the ring core 2, as is well shown in FIG 3 recognizable, several winding segments 10 distributed over the circumference of the ring core 2. A sufficient amount of winding material can be applied to the winding roll 4 for each of these partial windings. The partial windings or winding segments 10 are then connected to one another, so that the undervoltage winding and possibly also the high-voltage winding are formed from a plurality of partial windings. The division of the high-voltage and low-voltage windings with respect to the arrangement of the individual winding segments 10 can be provided practically as desired. For example, it is possible to assign high-voltage and low-voltage windings alternately next to one another or in groups to one another. As a result, the degree of coupling can be varied within wide limits.
Es besteht aber auch die Möglichkeit bei einem Wicklungssegment 10 sowohl die Oberspannungs- als auch die Unterspannungswicklung aufzubringen. In diesem Falle könnten drei Wickelrollen im Umlauf sein, wobei die erste Wickelrolle zum Beispiel für die Unterspannungswicklung, die zweite Wickelrolle für die Isolierung und die dritte Wickelrolle für die Oberspannungwicklung vorgesehen sein.However, it is also possible to apply both the high-voltage and the low-voltage winding to a winding segment 10. In this case, three winding rollers could be in circulation, the first winding roller being provided, for example, for the undervoltage winding, the second winding roller for the insulation and the third winding roller for the high-voltage winding.
Wie in Fig 1 und Fig. 2 erkennbar, weist die hier ringförmige Führung 3 zwei konzentrisch mit Abstand zueinander angeordnete Führungsschienen 11, 1 la auf, zwischen denen ein umlaufendes, mit einem Antrieb verbundenes Transportmittel 12 geführt ist (Fig. 2). Als Transportmittel 12 kann eine umlaufende Kette oder ein Riemen oder dergleichen dienen an der beziehungsweise dem sich Kupplungsstellen 13 für Wickelrollen befinden.As can be seen in FIGS. 1 and 2, the annular guide 3 here has two guide rails 11, 11a arranged concentrically at a distance from one another, between which a circumferential transport means 12 connected to a drive is guided (FIG. 2). A circulating chain or a belt or the like can be used as the transport means 12, on which the coupling points 13 for winding rolls are located.
Wie in Fig. 2 erkennbar, weisen die Wickelrollen Wickelkörper 14 auf, die drehbar auf eine Achse 15 gelagert sind. An dem dem Transportmittel 12 zugewandten Ende ist die Achse als Kupplungsteil ausgebildet und kann damit bei den Kupplungsstellen 13 des Transportmittels 12 vorzugsweise drehfest eingreifen. Zur Sicherung der Steckverbindung ist eine Befestigungsschraube 16 vorgesehen.As can be seen in FIG. 2, the winding rolls have winding bodies 14 which are rotatably mounted on an axis 15. At the end facing the means of transport 12, the axis is designed as a coupling part and can therefore preferably engage in a rotationally fixed manner at the coupling points 13 of the means of transport 12. A fastening screw 16 is provided to secure the plug connection.
Der Wickelkörper 14 ist drehbar auf der Achse 15 gelagert und es ist eine vorzugsweise einstellbare Bremsvorrichtung 17 vorgesehen, mit der der Wickelkörper beim Abwickeln des elektrischen Leiters abgebremst werden kann. Mit der Bremsvorrichtung 17 ist somit der Wickelzug und damit die Festigkeit der aufzubringenden Wicklung steuerbar. Neben dem in das Transportmittel 12 eingreifenden Befestigungsende der Achse 15 ist auf dieser noch ein zwischen die Führungsschienen 11, 11a eingreifendes Wälzlager 18 vorgesehen.The winding body 14 is rotatably mounted on the axis 15 and a preferably adjustable braking device 17 is provided, with which the winding body can be braked when the electrical conductor is unwound. With the brake device 17, the winding tension and thus the strength of the winding to be applied can be controlled. In addition to the fastening end of the axis 15 which engages in the transport means 12, a roller bearing 18 which engages between the guide rails 11, 11a is also provided thereon.
Vor dem Aufbringen der Wicklungen beziehungsweise Teilwicklungen wird auf den beispielsweise aus gewickeltem Elektroblech 6 bestehenden Ringkem 2 eine elastische Entkopplungsschicht 19 aufgebracht. Diese dient zum Ausgleich von Wärmedehnungen, insbesondere auch, wenn der Transformator nach dem Bewickeln in Giessharz eingegossen wird. In Fig. 1 ist noch eine Haltevoπichtung 20 für den zu bewickelnden Ringkem 2 angedeutet, mittels der der Ringkem 2 gehalten und gegebenenfalls auch gedreht werden kann. Somit kann nach dem Fertigstellen einer Wicklung der Ringkem 2 in Umfangsrichtung gedreht und dann eine weitere Wicklung aufgebracht werden. Es besteht aber auch die Möglichkeit, dass die Relativ-Drehbewegung zwischen Ringkem und Wickelvorrichtung 1 von der Wickelvorrichtung selbst ausgeführt wird, indem diese in Umfangsrichtung des Ringkemes 2 positionierbar ist.Before the windings or partial windings are applied, an elastic decoupling layer 19 is applied to the ring core 2, which consists, for example, of wound electrical sheet 6. This is used to compensate for thermal expansion, especially when the transformer is cast in casting resin after winding. 1 also shows a holding device 20 for the ring core 2 to be wound, by means of which the ring core 2 can be held and possibly also rotated. Thus, after the completion of a winding, the ring core 2 can be rotated in the circumferential direction and then another winding can be applied. However, there is also the possibility that the relative rotary movement between the ring core and the winding device 1 is carried out by the winding device itself by being able to be positioned in the circumferential direction of the ring core 2.
Bei einer Aufteilung einer Unterspannungswicklung oder einer Oberspannungswicklung in eine Reihe von Teilwicklungen oder Wicklungssegmenten 10 müssen diese miteinander verbunden werden. Um dieses Verbinden zu vereinfachen, wird die in den Figuren 9 bis 11 gezeigte Ausbildung der Wicklungsenden vorgeschlagen.If an undervoltage winding or an overvoltage winding is divided into a series of partial windings or winding segments 10, these must be connected to one another. In order to simplify this connection, the design of the winding ends shown in FIGS. 9 to 11 is proposed.
Das Ende des bandförmigen elektrischen Leiters 8 wird dazu um eine in der Bandebene liegende, schräge Knicklinie 21 gefaltet, so dass das Ende dann winklig zum übrigen Leiter 8, vorzugsweise rechtwinklig verläuft Dieses abgewinkelte, gefaltete Ende kann dann, wie in Fig. 10 gezeigt, in seiner Breite durch Umf alten halbiert werden. Dies kann so lange wiederholt werden, bis ein kompaktes Anschlussende 22 entsteht das mechanisch stabil ist und mit den ebenfalls so ausgebildeten Anschlussenden benachbarter Wicklungen mit Hilfe von Press-, Schweiss- oder Löttechnik verbunden werden kann. Dies vereinfacht somit ganz erheblich das Verschalten der einzelnen Teil Wicklungen.For this purpose, the end of the band-shaped electrical conductor 8 is folded around an oblique fold line 21 lying in the band plane, so that the end then runs at an angle to the rest of the conductor 8, preferably at right angles. This angled, folded end can then, as shown in FIG. be halved in width by repositioning. This can be repeated until a compact connection end 22 is created which is mechanically stable and can be connected to the connection ends of adjacent windings, which are also formed in this way, by means of press, welding or soldering technology. This therefore considerably simplifies the interconnection of the individual part windings.
Der nach dem erfindungsgemässen Verfahren hergestellte Transformator kann auch mit einer integrierten Drossel ausgerüstet sein. Dazu wird, wie vorbeschrieben, zunächst ein Teil der Wicklungen oder der Wicklungssegmente 10 auf den Ringkem 2 aufgebracht. Anschliessend wird ein weiterer Ringkem 2a oder 2b (vergleiche Fig. 4 und Fig. 5), die mit Luftspalten 23 versehen sind, dem teilbewickelten Ringkem 2 zugeordnet und es werden dann beide Ringkerne mit weiteren Wicklungen gemeinsam umwickeltThe transformer produced by the method according to the invention can also be equipped with an integrated choke. For this purpose, as described above, a part of the windings or the winding segments 10 is first applied to the ring core 2. A further ring core 2a or 2b (compare FIGS. 4 and 5), which are provided with air gaps 23, is then assigned to the partially wound ring core 2 and both ring cores are then wrapped together with further windings
Fig. 6 zeigt einen im Schnitt dargestellten Stufen-Ringkem 2c, durch den unerwünschte Wickelzwischenräume zwischen Ringkem und Wicklung vermieden werden können. Deutlich ist hier auch der Verlauf der vorgesehenen Entkopplungsschichten 19 erkennbar.Fig. 6 shows a step ring core 2c shown in section, by means of which undesired winding spaces between the ring core and the winding can be avoided. The course of the provided decoupling layers 19 can also be clearly seen here.
Die Fig. 7 und Fig. 8 zeigen zwischen dem Ringkem 2 und einer aufzubringenden Wicklung (hier nicht dargestellt) befindliche Zwischenschichten 24, die Kühlkanäle 25 zur Kühlung der Wicklungen und des Kernes aufweist. Von aussen können diese Kühlkanäle 25 mit einem kühlenden Medium versorgt werden.7 and 8 show intermediate layers 24 located between the ring core 2 and a winding to be applied (not shown here), the cooling channels 25 Has cooling of the windings and the core. From the outside, these cooling channels 25 can be supplied with a cooling medium.
Fig. 7 zeigt eine Ausführungsform, bei der die Zwischenschicht 24 aus elastischem Material ist und damit gleichzeitig die Entkopplungsschicht 19 bildet Fig. 8 zeigt eine andere Ausführungsform, wo die Kühlkanäle 25 in einer von der bei der Entkopplungsschicht 19 getrennten Zwischenschicht 24 untergebracht sind.FIG. 7 shows an embodiment in which the intermediate layer 24 is made of elastic material and thus simultaneously forms the decoupling layer 19. FIG. 8 shows another embodiment where the cooling channels 25 are accommodated in an intermediate layer 24 separated from the decoupling layer 19.
Erwähnt sei noch, dass die Entkopplungsschicht auf den radialen und den axialen Seiten des Ringkemes unterschiedlich ausgebildet sein kann, um einen Einfluss auf die magnetischen Eigenschaften des Kernes durch unterschiedliche Druckbeaufschlagung zu erreichen. It should also be mentioned that the decoupling layer on the radial and the axial sides of the ring core can be designed differently in order to influence the magnetic properties of the core through different pressurization.

Claims

Patentansprüche claims
1. Verfahren zum Bewickeln eines geschlossenen Ringkemes für Transformatoren und Drosseln hoher Leistung, mit einer oder mehreren elektrischen Leitern, bei welchem Verfahren der für eine Wicklung oder eine Teilwicklung vorgesehene Leiter (8) auf eine zusammen mit dem Wickelgut durch die Ringkemöffhung (9) hindurchpassende Wickelrolle (4) aufgebracht und diese Wickelrolle anschliessend um den Ringkem (2, 2a, 2b, 2c) und durch die Innenöffnung (9) hindurchgeführt und dabei die Wicklung von der Wickelrolle (4) auf den Ringkem umgewickelt wird, dadurch gekennzeichnet dass auf einen Ringkem-Radialabschnitt ein erstes Wicklungssegment (10) aufgebracht wird, wobei bei der Erstellung des Wicklungssegments (10) mehrere Lagen eines Leiters (8) und einer Zwischenisolierung (26) durch mehrere umlaufende Wickelrollen (4, 4a) auf den Ringkem-Radialabschnitt aufgebracht werden, und dass anschliessend zum Aufbringen eines weiteren Wicklungssegments an einem anderen Ringkern-Radialabschnitt der Ringkem und die Wickelvorrichtung relativ zueinander verdreht werden und dann das Umwickeln des Ringkems mit einer weiteren Wicklung vorgenommen wird.1. A method for winding a closed toroidal core for transformers and chokes of high power, with one or more electrical conductors, in which method the conductor (8) provided for a winding or a partial winding fits onto one together with the winding material through the toroidal core opening (9) Applied winding roller (4) and this winding roller then around the ring core (2, 2a, 2b, 2c) and through the inner opening (9) and the winding is wound from the winding roller (4) onto the ring core, characterized in that on one A first winding segment (10) is applied to the Ringkem radial section, several layers of a conductor (8) and an intermediate insulation (26) being applied to the Ringkem radial section by a plurality of revolving winding rollers (4, 4a) when the winding segment (10) is created , and that subsequently to apply a further winding segment to another toroidal radial section of the Ri ngkem and the winding device are rotated relative to each other and then the winding around the ring core is carried out with another winding.
2. Verfahren nach Ansprach 1, dadurch gekennzeichnet, dass insbesondere bei mehreren aus elektrischen Bandleitern gewickelten Wicklungen oder Teilwicklungen deren Enden um eine in der Bandebene liegende, schräge Knicklinie (21) gefaltet und das gefaltete Ende ein- oder mehrfach zu einem Anschlussende (22) zusammengefaltet oder gerollt wird,2. The method according to spoke 1, characterized in that, in particular in the case of a plurality of windings or partial windings wound from electrical strip conductors, the ends thereof are folded around an oblique crease line (21) lying in the strip plane and the folded end is one or more times to a connection end (22). is folded or rolled,
3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass Wicklungen um den Ringkem (2) gewickelt werden, dass anschliessend ein mit Luftspalten (23) versehener, weiterer Ringkem (2a, 2b) bei dem ersten Ringkem (2) vorzugsweise konzentrisch angeordnet wird und dass anschliessend beide Ringkerne (2, 2a, 2b) mit gemeinsamen Wicklungen bewickelt werden.3. The method according to any one of claims 1 or 2, characterized in that windings are wound around the ring core (2), that then a further ring core (2a, 2b) provided with air gaps (23) in the first ring core (2) is preferred is arranged concentrically and that both ring cores (2, 2a, 2b) are then wound with common windings.
4. Vorrichtung zum Bewickeln von geschlossenen Ringkernen mit elektrischen Leitern als Wickelgut zur Herstellung von Transformatoren und Drosseln hoher Leistung, insbesondere zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 3, mit einer einen Ringkem-Schenkel (5) umgreifenden Führung (3) und einer durch den Ringinnenraum hindurch bewegbaren, mit Wickelgut beladenen Wickelrolle (4), dadurch gekennzeichnet, dass die Führung zum Umgreifen des Ringkem-Schenkels (5) eine Trennstelle (7) aufweist und zangenförmig offen- und schliessbar ist, und dass sie mehrere Wickelrollen (4,4a) aufweist, die mit einem Leiter (8) bzw. mit einer Zwischenisolierung (26) beladen sind, wobei die Wickelrollen (4,4a) bei geschlossener Führung (3) mit Hilfe von Transportmitteln nacheinander entlang der Führung (3) durch den Ringkem hindurch bewegbar sind.4. Apparatus for winding closed ring cores with electrical conductors as winding material for the production of transformers and chokes of high power, in particular for carrying out the method according to one of claims 1 to 3, with a ring core leg (5) encompassing guide (3) and a winding roll (4) which can be moved through the ring interior and is loaded with material to be wound, characterized in that the guide for gripping around the ring core leg (5) is a Has separation point (7) and can be opened and closed in the form of pliers, and that it has a plurality of winding rollers (4,4a) which are loaded with a conductor (8) or with an intermediate insulation (26), the winding rollers (4,4a ) can be moved one after the other along the guide (3) through the ring core when the guide (3) is closed.
5. Vorrichtung nach Ansprach 4, dadurch gekennzeichnet dass die Führung (3) ringförmig ausgebildet ist und Anschlussstellen (13) zur Aufnahme vorzugsweise mehrerer Wickel¬ rollen (4, 4a) aufweist.5. The device according spoke 4, characterized in that the guide (3) is annular and has connection points (13) for receiving preferably a plurality of winding rolls (4, 4a).
6. Vorrichtung nach Ansprach 4 oder 5, dadurch gekennzeichnet, dass die Führang (3) in Betriebsstellung feststehende Führungsschienen (11, 1 la) aufweist und dass die Wickel¬ rollen (4, 4a) an Transportmittel (12), die entlang der Führungsschienen geführt sind, ankuppelbar sind.6. The device according spoke 4 or 5, characterized in that the guide (3) in the operating position has fixed guide rails (11, 1 la) and that the winding rollers (4, 4a) on transport means (12) along the guide rails are guided, can be coupled.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet dass die Führungsschienen (11, 1 la) konzentrisch und parallel nebeneinander angeordnet sind und dass dazwischen ein umlaufendes Transportmittel (12), vorzugsweise eine Kette, ein Riemen oder ein derartiges Zugelement vorgesehen ist, an dem sich Kupplungsstellen (13) zum Anbringen von Wickelrollen (4, 4a) befinden.7. The device according to claim 6, characterized in that the guide rails (11, 1 la) are arranged concentrically and in parallel next to each other and in between that a circumferential transport means (12), preferably a chain, a belt or such a tension element is provided, on which Coupling points (13) for attaching winding rollers (4, 4a).
8. Vorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Wickelrollen einen auf einer Achse (15) drehbar gelagerten Wickelkörper (14) aufweisen, dass die Achse (15) an einem Ende als Kupplungsteil zum Verbinden mit dem Transportmittel (12) oder dergleichen ausgebildet ist und bei diesem Kupplungsteil wenigstens ein Lager, insbesondere eine Wälzlager (18) angeordnet ist, das mit der Führung (3) zusammenwirkt.8. Device according to one of claims 4 to 7, characterized in that the winding rollers have a winding body (14) rotatably mounted on an axis (15), that the axis (15) at one end as a coupling part for connection to the transport means (12 ) or the like is formed and at least one bearing, in particular a roller bearing (18), which interacts with the guide (3), is arranged in this coupling part.
9. Vorrichtung nach einem der Ansprüche 4 bis 8, dadurch gekennzeichnet, dass bei den Wickelrollen (4, 4a) vorzugsweise einstellbare Bremsvorrichtungen (17) zur Drehmomenteinstellung vorgesehen sind.9. Device according to one of claims 4 to 8, characterized in that preferably adjustable braking devices (17) are provided for torque adjustment in the winding rollers (4, 4a).
10. Vorrichtung nach einem der Ansprüche 4 bis 9, dadurch gekennzeichnet, dass eine Positioniervoπichtung für den zu bewickelnden Ringkem (2) und/oder die Wickelvorrichtung (1) vorgesehen ist, zum Aufbringen von Wicklungen an unterschiedlichen Umfangsstellen des Ringkems. 10. Device according to one of claims 4 to 9, characterized in that a Positioniervoπichtung for the wound core (2) and / or the winding device (1) is provided for applying windings at different circumferential locations of the ring core.
EP94930197A 1993-11-03 1994-10-20 Process and device for winding a closed ring core for high-power transformers and chokes Expired - Lifetime EP0761009B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4337436 1993-11-03
DE4337436 1993-11-03
PCT/EP1994/003447 WO1995012887A1 (en) 1993-11-03 1994-10-20 Process and device for winding a closed ring core for high-power transformers and chokes

Publications (2)

Publication Number Publication Date
EP0761009A1 true EP0761009A1 (en) 1997-03-12
EP0761009B1 EP0761009B1 (en) 1998-05-13

Family

ID=6501650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94930197A Expired - Lifetime EP0761009B1 (en) 1993-11-03 1994-10-20 Process and device for winding a closed ring core for high-power transformers and chokes

Country Status (6)

Country Link
EP (1) EP0761009B1 (en)
AT (1) ATE166180T1 (en)
AU (1) AU7938794A (en)
DE (1) DE59405966D1 (en)
ES (1) ES2116622T3 (en)
WO (1) WO1995012887A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL1797573T3 (en) 2004-10-07 2009-07-31 Volker Werner Hanser Toroidal core transformer
DE102005062485A1 (en) * 2005-01-10 2006-09-07 Beotechnic Gmbh Device and method for winding a closed ring core
DE102007026042A1 (en) 2007-06-04 2008-12-11 Abb Ag Method and apparatus for producing a toroidal transformer
NL2004191C2 (en) 2010-02-04 2011-08-08 Protension Composites Device and method for producing a fiber composite product.
CN104900395B (en) * 2015-03-09 2017-01-25 廊坊英博电气有限公司 A large magnet ring inductor automatic winding machine and winding method
CN104900396B (en) * 2015-03-09 2017-01-18 廊坊英博电气有限公司 A rotating winding support group for a large magnet ring inductor automatic winding machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750414A (en) * 1980-09-12 1982-03-24 Toshiba Corp Manufacturing device for current transformer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228719B (en) * 1958-04-17 1966-11-17 Karl Heinz Ramm Device for winding ring-shaped bodies, e.g. B. toroidal cores, with wire or the like.
US3669365A (en) * 1969-01-27 1972-06-13 Joseph A Loturco Toroidal coil winding machine
JPH0241852Y2 (en) * 1985-03-20 1990-11-08
ATE42861T1 (en) * 1985-06-07 1989-05-15 Siemens Ag TOROID COIL WINDING DEVICE.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750414A (en) * 1980-09-12 1982-03-24 Toshiba Corp Manufacturing device for current transformer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 123 (E-117) (1001) 8. Juli 1982 & JP-A-57 050 414 *

Also Published As

Publication number Publication date
EP0761009B1 (en) 1998-05-13
ES2116622T3 (en) 1998-07-16
WO1995012887A1 (en) 1995-05-11
DE59405966D1 (en) 1998-06-18
ATE166180T1 (en) 1998-05-15
AU7938794A (en) 1995-05-23

Similar Documents

Publication Publication Date Title
EP1872377B1 (en) Saddle-shaped coil winding using superconductors, and method for the production thereof
EP1959460B1 (en) Method for manufacturing a transformer
DE1685829B2 (en) Parallel wire bundle and device for its manufacture
DE102014222468A1 (en) Extrusion molding process for producing an electrical coil and coil produced by this method
EP1315182B1 (en) Winding for a tranformer or a coil
EP0761009B1 (en) Process and device for winding a closed ring core for high-power transformers and chokes
DE2931362A1 (en) DEVICE FOR WINDING CLOSED RING CORES
EP3909121A1 (en) Method and device for multi-layer insertion of a coil mat into a component of an electrical machine
DE722211C (en) Method for applying winding cores to coils or windings of transformers, chokes or the like.
DE1514952A1 (en) Lamellar magnetic core for inductive devices, especially transformers, and processes for its production
DE2706719A1 (en) METHOD OF MANUFACTURING AN ORTHOCYCLIC COIL
DE102010043976A1 (en) Component for manufacturing machine component e.g. stator for electric machine, has several teeth which are arranged at base portion in arrangement direction, and base portion comprises one or more upsetting regions between each teeth
DE2521666A1 (en) STAR-SHAPED CORE ELEMENT FOR MAGNETIC FLOW FORMATION, PROCESS FOR ITS MANUFACTURING AND TRANSFORMER MANUFACTURED FROM IT
DE102021122115A1 (en) Process for manufacturing a coil winding
WO2017042013A1 (en) Method for producing a shaped coil for an electrical machine using flat wire
DE10157591A1 (en) Winding for a transformer or a coil
DE3334680A1 (en) COIL INSERTION DEVICE
DE866698C (en) Method and device for winding the stands and for forming the coils of two- or multi-pole single or multi-phase machines
EP2596569A2 (en) Method and device for producing an annular machine element, in particular for insertion into an electric machine
EP1265260A1 (en) Metallic wire
DE3504223C2 (en)
DE2525466A1 (en) COMPACT ELECTRICAL COILS AND METHOD AND DEVICE FOR MANUFACTURING SUCH COILS
DE949368C (en) Process for making a laminated ferromagnetic core
DE19733616A1 (en) Coil winding method for annular core of three-phase electric motor pole
WO2024017597A1 (en) Arranging a wire winding in a magnetisable flux conductor element of a stator of a rotary electric machine designed as a internal rotor

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960808

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IE IT LI NL PT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19970724

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IE IT LI NL PT

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

Ref country code: NL

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

Effective date: 19980513

REF Corresponds to:

Ref document number: 166180

Country of ref document: AT

Date of ref document: 19980515

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

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

Effective date: 19980513

REF Corresponds to:

Ref document number: 59405966

Country of ref document: DE

Date of ref document: 19980618

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2116622

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN P. & C. S.N.C.

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: 80379

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

Ref country code: PT

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

Effective date: 19980813

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: HPT HANSER TRANSFORMATOREN GMBH

RIN2 Information on inventor provided after grant (corrected)

Free format text: HANSER, VOLKER

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

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

Effective date: 19981020

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

Ref country code: BE

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

Effective date: 19981031

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

Ref country code: IE

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

Effective date: 19981211

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 80379

Country of ref document: IE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

BERE Be: lapsed

Owner name: HANSER VOLKER

Effective date: 19981031

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011002

Year of fee payment: 8

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

Ref country code: ES

Payment date: 20011005

Year of fee payment: 8

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

Ref country code: FR

Payment date: 20011017

Year of fee payment: 8

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

Ref country code: CH

Payment date: 20011023

Year of fee payment: 8

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

Ref country code: DE

Payment date: 20011218

Year of fee payment: 8

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: GB

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

Effective date: 20021020

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

Ref country code: ES

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

Effective date: 20021021

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

Ref country code: LI

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

Effective date: 20021031

Ref country code: CH

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

Effective date: 20021031

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

Ref country code: DE

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

Effective date: 20030501

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

Effective date: 20021020

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

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

Effective date: 20030630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031112

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051020