WO2020260095A1 - Method and device for drawing in windings - Google Patents

Method and device for drawing in windings Download PDF

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Publication number
WO2020260095A1
WO2020260095A1 PCT/EP2020/066783 EP2020066783W WO2020260095A1 WO 2020260095 A1 WO2020260095 A1 WO 2020260095A1 EP 2020066783 W EP2020066783 W EP 2020066783W WO 2020260095 A1 WO2020260095 A1 WO 2020260095A1
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WIPO (PCT)
Prior art keywords
coils
stator
grooves
pulling
pull
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PCT/EP2020/066783
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German (de)
French (fr)
Inventor
Gerhard Seidl
Original Assignee
Magna powertrain gmbh & co kg
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Application filed by Magna powertrain gmbh & co kg filed Critical Magna powertrain gmbh & co kg
Publication of WO2020260095A1 publication Critical patent/WO2020260095A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/06—Embedding prefabricated windings in machines
    • H02K15/062—Windings in slots; salient pole windings
    • H02K15/065—Windings consisting of complete sections, e.g. coils, waves
    • H02K15/067—Windings consisting of complete sections, e.g. coils, waves inserted in parallel to the axis of the slots or inter-polar channels
    • H02K15/068—Strippers

Definitions

  • the invention relates to a method and a device for pulling Spu len in grooves of stator or rotor laminated cores of electrical machines, the coils being transferred to a pulling tool consisting of annularly arranged parallel pull-in lamellae and egg nem axially movable pull-in ram and pulled into the grooves by this .
  • Electric motors with ironless air-gap windings are characterized by the fact that the winding is not placed around an iron core, but is designed as an air-core coil.
  • a coil body can be part of a stator, but also rotate with the rotating part of the electric motor.
  • Motors are known in which the rotor contains permanent magnets; and there are other variants are known in which the stator contains permanent magnets.
  • a stator forms an iron yoke body for the magnetic yoke between different individual coils of the coil body.
  • An asynchronous machine with a distributed winding is particularly popular in automotive engineering, especially in the field of electromobility.
  • distributed winding in contrast to concentrated winding, not every single tooth pole of the stator is wound, but coils are inserted into the stator slots over several tooth poles.
  • coil windings are introduced into stator lamination stacks in various work steps on different processing stations, the stator lamination stack being transferred from processing station to processing station.
  • the individual coils are converted into a so-called Winding tool, which is then brought from the winding station to a pulling station.
  • a cover is placed on the drawn-in tool prepared in this way, with coils verse, which fixes the individual lamellae of the drawing tool in both the radial direction and defines the exact division of the individual lamellae along the circumference of the draw-in tool.
  • the identical position of the individual coils of the winding leads to an increased overall height of the winding heads.
  • FIG. 1 shows a plan view of an unrolled cylinder wall 1 a of a stator 1.
  • the coils 2 that have been drawn in are all of the same size and drawn in at the same height. All coil ends are at the same height and therefore have a strong overlap. This overlap leads to an enlargement of the winding head 3 and thus to higher mechanical loads on the winding and the components introduced during a compression molding process with plastic.
  • the object of the invention is to provide a method and a device for drawing in bobbins, the size of the winding heads being optimized.
  • the object is achieved with a device for pulling coils into grooves of stator or rotor laminated cores of electrical machines, the coils being transferable to a pulling tool consisting of annularly arranged parallel pulling lamellas and an axially movable pulling punch and being able to be pulled into the grooves by the sem, wherein the coils have the same size and the pull-in slats have at least two different heights.
  • the essence of the invention is to use identical coil lengths, but to move them axially over the active length in the stator, ie to draw in different lengths. As a result, there is less overlapping of the coils in the end winding and the size of the end winding can be significantly reduced without exposing the electric wire to mechanical overload.
  • the wire is exposed to less mechanical stress; a cheaper wire can be used.
  • three different heights are used for the pull-in slats and slots.
  • the height of the grooves remains the same and is unchanged.
  • the coils have the same size after pulling them into the stator and have different installation levels.
  • the winding heads are of the same size above and below the stator.
  • the symmetry of the winding guarantees optimal operating behavior and at the same time uses the available installation space in the best possible and process-reliable manner.
  • the installation space of the winding head can be reduced; in return, this can be used for the active length of the machine, thus increasing the machine's performance.
  • Fig. 1 shows a schematic representation of the prior art
  • Fig. 2 also shows the prior art
  • Fig. 4 shows a stator
  • Fig. 5 shows a pull-in tool
  • Fig. 6 and 7 show the stator with the pulling tool
  • FIG. 8 shows a view of the unrolled outer surface of the drawing-in tool with exemplary coils.
  • FIG. 3 as in FIGS. 1 and 2, a view of the unrolled Zylin dermantel 1 a of the stator 1 can be seen. Different coils 2 are shown schematically. These coils all have the same size or the same overall height.
  • the coils are drawn into the slots 5 of the stator to different degrees.
  • the six coils 2 are all anchored to different extents in the grooves.
  • the use of coils of the same size naturally has the advantage that only one standard size has to be produced when winding the coils 2. Because the coils 2 are drawn into the slots 5 of the stator 1 to different extents, the winding heads 3a and 3b are evenly distributed above and below the stator 1. This optimizes the installation size and the size of the winding heads.
  • FIG. 4 shows schematically a stator 1, used in simplified form for stator or rotor laminated cores, which has the inner cylinder surface 1a.
  • a grooves 5 are introduced in this Zy cylinder surface 1 . These grooves 5 extend along the entire structural height of the stator 1.
  • a drawing-in tool 10 can be seen in a simplified manner in FIG.
  • the Einziehwerk tool 10 is shown without coils.
  • the drawing-in tool 10 essentially consists of individual drawing-in lamellae 11, which are spaced apart from one another via slots 12 along a ring.
  • the insertion punch which also belongs to the insertion tool, cannot be seen.
  • the pull-in slats 1 1 with their slots 12 are stepped in their overall heights in this embodiment. In the exemplary embodiment, three overall heights H1, H2 and H3 can be seen, which lead to three drawing levels of the coils 2 in the stator 1.
  • the pull-in tool 10 is inserted into the stator O 1 in the direction of the arrow.
  • the drawing-in tool 10 can be seen in FIG. 7 after the drawing-in process has been completed and the drawing-in tool has been withdrawn from the stator.
  • FIG. 8 a plan view of the unrolled jacket of the pull-in tool 10 is shown.
  • the retractable lamellas 1 1 with the slots 12 are also designed for three Bauhö hen.
  • the inserted coils 2 can be seen, the respective coils 2 being connected to pull-in lamellas 1 1 of the same overall height Fl.
  • This invention can be realized by slight and inexpensive modification of existing pulling tools with respect to the existing pulling depth.
  • This idea can be used for all electrical machines with round wire winding.
  • the lower mechanical forces when pressing the winding heads result in lower loads and thus less damage to the components, such as temperature sensors, that are introduced into the winding.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The invention relates to a device for drawing windings (2) into grooves (5) in stator lamination stacks or rotor lamination stacks of electrical machines, in which the windings (2) can be transferred to a drawing-in tool (12), which consists of parallel drawing-in laminations (11) arranged in a ring and an axially movable drawing-in punch, and can be drawn by said drawing-in tool into the grooves (2), characterised in that the windings (2) are the same size, and the drawing-in laminations (11) have at least two different heights (H).

Description

Verfahren und eine Vorrichtung zum Einziehen von Spulen Method and apparatus for drawing in bobbins
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Einziehen von Spu len in Nuten von Stator- oder Rotorblechpaketen elektrischer Maschinen, wobei die Spulen auf ein aus ringförmig angeordneten parallelen Einziehlamellen und ei nem axial verfahrbaren Einziehstempel bestehendes Einziehwerkzeug übertragen und von diesem in die Nuten eingezogen werden. The invention relates to a method and a device for pulling Spu len in grooves of stator or rotor laminated cores of electrical machines, the coils being transferred to a pulling tool consisting of annularly arranged parallel pull-in lamellae and egg nem axially movable pull-in ram and pulled into the grooves by this .
Stand der Technik State of the art
Elektromotoren mit eisenloser Luftspaltwicklung zeichnen sich dadurch aus, dass die Wicklung nicht um einen Eisenkern gelegt ist, sondern als Luftspule ausgebil det ist. Ein solcher Spulenkörper kann Teil eines Stators sein, jedoch auch mit dem rotierenden Teil des Elektromotors umlaufen. Es sind Motoren bekannt, bei denen der Rotor Permanentmagnete enthält; und es sind weitere Varianten be kannt, bei denen der Stator Permanentmagnete enthält. In vielen Varianten bildet ein Stator einen Eisenrückschlusskörper für den magnetischen Rückschluss zwi schen verschiedenen Einzelspulen des Spulenkörpers. Electric motors with ironless air-gap windings are characterized by the fact that the winding is not placed around an iron core, but is designed as an air-core coil. Such a coil body can be part of a stator, but also rotate with the rotating part of the electric motor. Motors are known in which the rotor contains permanent magnets; and there are other variants are known in which the stator contains permanent magnets. In many variants, a stator forms an iron yoke body for the magnetic yoke between different individual coils of the coil body.
Im Automobilbau, speziell im Bereich der Elektromobilität findet eine Asynchron maschine mit einer verteilten Wicklung eine hervorgehobene Anwendung. Bei der verteilten Wicklung wird im Gegensatz einer konzentrierten Wicklung nicht jeder einzelne Zahnpol des Stators bewickelt, sondern über mehrere Zahnpole hinweg Spulen in die Statornuten eingebracht. An asynchronous machine with a distributed winding is particularly popular in automotive engineering, especially in the field of electromobility. In the case of distributed winding, in contrast to concentrated winding, not every single tooth pole of the stator is wound, but coils are inserted into the stator slots over several tooth poles.
Im Stand der Technik, beispielsweise in der EP 0 949 746 A2, werden Spulen wicklungen in Statorblechpaketen in verschiedenen Arbeitsschritten auf verschie denen Bearbeitungsstationen eingebracht, wobei das Statorblechpaket von Bear beitungsstation zu Bearbeitungsstation übergeben wird. Auf einer ersten Bearbei tungsstation werden hierbei die einzelnen Spulen in ein sogenanntes Einziehwerkzeug gewickelt, das anschließend von der Wickelstation zu einer Ein zugsstation verbracht wird. Hierbei wird auf das so vorbereitete, mit Spulen verse hene Einziehwerkzeug ein Deckel aufgesetzt, der die einzelnen Lamellen des Ein ziehwerkzeugs sowohl in radialer Richtung fixiert als auch die exakte Teilung der einzelnen Lamellen entlang dem Umfang des Einzugswerkzeugs festlegt. Wäh rend des anschließenden Einziehvorgangs der Spulen in die Nuten eines In the prior art, for example in EP 0 949 746 A2, coil windings are introduced into stator lamination stacks in various work steps on different processing stations, the stator lamination stack being transferred from processing station to processing station. At a first processing station, the individual coils are converted into a so-called Winding tool, which is then brought from the winding station to a pulling station. Here, a cover is placed on the drawn-in tool prepared in this way, with coils verse, which fixes the individual lamellae of the drawing tool in both the radial direction and defines the exact division of the individual lamellae along the circumference of the draw-in tool. During the subsequent pulling-in process of the coils into the grooves of a
Statorblechpakets wird hierdurch eine exakte Positionierung der Lamellen bzw. der entsprechenden Spulen vor den jeweiligen Nuten des Statorblechpakets ge währleistet. In this way, an exact positioning of the lamellae or the corresponding coils in front of the respective grooves of the stator lamination stack is guaranteed.
Speziell beim Einziehprozess der Spulen kommt es durch die identische Lage der individuellen Spulen der Wicklung zu einer erhöhten Bauhöhe der Wickelköpfe. Especially during the winding process of the coils, the identical position of the individual coils of the winding leads to an increased overall height of the winding heads.
Elektrische Maschinen im Automobil-Bereich werden zunehmend unter einge schränkten Bauraumbedingungen eingesetzt, daher werden auch die Bauraum verhältnisse auch für die Enden der elektrischen Wicklung, für die Wickelköpfe, zunehmend verringert. Electrical machines in the automotive sector are increasingly being used under restricted installation space conditions, which is why the installation space ratios are also increasingly being reduced for the ends of the electrical winding, for the winding heads.
Der Stand der Technik dazu wird in den Figuren 1 und 2 dargestellt. Figur 1 zeigt eine Aufsicht auf eine abgerollte Zylinderwand 1 a eines Stators 1 . Die Spulen 2, die eingezogen wurden, sind alle gleich groß und auf gleicher Höhe eingezogen. Alle Spulenenden liegen auf der gleichen Höhe und weisen daher eine starke Überlappung auf. Diese Überlappung führt zu einer Vergrößerung des Wickelkop fes 3 und dadurch zu höheren mechanischen Belastungen von Wicklung und ein- gebrachten Komponenten während eines Verpreßprozesses mit Kunststoff. The prior art for this is shown in FIGS. 1 and 2. FIG. 1 shows a plan view of an unrolled cylinder wall 1 a of a stator 1. The coils 2 that have been drawn in are all of the same size and drawn in at the same height. All coil ends are at the same height and therefore have a strong overlap. This overlap leads to an enlargement of the winding head 3 and thus to higher mechanical loads on the winding and the components introduced during a compression molding process with plastic.
In Figur 2 ist in einer Aufsicht eine Lösung dargestellt, die ungleiche Spulen ver wendet, die auf die gleiche Position eingezogen werden. Da die Spulen unter schiedliche Längen aufweisen, kann -bei gleicher Einziehtiefe- somit ein Spulenversatz auf einer Seite der elektrischen Maschine erreicht werden. Jedoch weist die Wicklung eine Asymmetrie zwischen den Spulen auf, was zu einem un günstigen Betriebsverhalten und Problemen in der Regelung führen kann. Zudem ist die Verwendung von ungleichen Spulen aufwändiger. In Figure 2, a solution is shown in a plan view, the ver uses unequal coils that are drawn into the same position. Since the coils have different lengths, a Coil offset can be achieved on one side of the electrical machine. However, the winding has an asymmetry between the coils, which can lead to unfavorable operating behavior and problems in the regulation. In addition, the use of unequal coils is more complex.
Es ist Aufgabe der Erfindung, ein Verfahren und eine Vorrichtung zum Einziehen von Spulen zur Verfügung zu stellen, wobei die Größe der Wickelköpfe optimiert ist. The object of the invention is to provide a method and a device for drawing in bobbins, the size of the winding heads being optimized.
Die Aufgabe wird gelöst mit einer Vorrichtung zum Einziehen von Spulen in Nuten von Stator- oder Rotorblechpaketen elektrischer Maschinen, wobei die Spulen auf ein aus ringförmig angeordneten parallelen Einziehlamellen und einem axial ver fahrbaren Einziehstempel bestehendes Einziehwerkzeug übertragbar und von die sem in die Nuten einziehbar sind, wobei die Spulen gleiche Größe aufweisen und die Einziehlamellen mindestens zwei unterschiedliche Bauhöhen haben. The object is achieved with a device for pulling coils into grooves of stator or rotor laminated cores of electrical machines, the coils being transferable to a pulling tool consisting of annularly arranged parallel pulling lamellas and an axially movable pulling punch and being able to be pulled into the grooves by the sem, wherein the coils have the same size and the pull-in slats have at least two different heights.
Der Kern der Erfindung ist es, identische Spulenlängen einzusetzen, diese jedoch axial über die Aktivlänge im Stator zu versetzen also unterschiedlich weit einzuzie hen. Dadurch treten weniger Überlagerungen der Spulen im Wickelkopf auf und dieser kann signifikant in seiner Baugröße reduziert werden ohne dabei den Elekt- rodraht einer mechanischen Überbelastung auszusetzen. The essence of the invention is to use identical coil lengths, but to move them axially over the active length in the stator, ie to draw in different lengths. As a result, there is less overlapping of the coils in the end winding and the size of the end winding can be significantly reduced without exposing the electric wire to mechanical overload.
Der Draht wird einer geringeren mechanischen Belastung ausgesetzt, es kann ein günstigerer Draht genutzt werden. The wire is exposed to less mechanical stress; a cheaper wire can be used.
In einer vorteilhaften Ausführungsform, wobei drei unterschiedliche Bauhöhen für die Einziehlamellen und Schlitze verwendet sind. Die Höhe der Nuten bleibt gleich und ist unverändert. Um die Vorteile zu erreichen, weisen die Spulen gleicher Größe nach dem Einzie hen in den Stator unterschiedliche Einbauebenen aufweisen. In an advantageous embodiment, three different heights are used for the pull-in slats and slots. The height of the grooves remains the same and is unchanged. In order to achieve the advantages, the coils have the same size after pulling them into the stator and have different installation levels.
Die Wickelköpfe weisen oberhalb und unterhalb des Stators gleiche Baugröße auf. The winding heads are of the same size above and below the stator.
Durch die Symmetrie der Wicklung wird ein optimales Betriebsverhalten garantiert und gleichzeitig der vorhandene Bauraum bestmöglich und prozesssicher ausge nutzt. Der Bauraum des Wickelkopfes kann gesenkt werden, im Gegenzug kann dieser für Aktivlänge der Maschine genutzt und damit die Performance der Ma schine gesteigert werden. The symmetry of the winding guarantees optimal operating behavior and at the same time uses the available installation space in the best possible and process-reliable manner. The installation space of the winding head can be reduced; in return, this can be used for the active length of the machine, thus increasing the machine's performance.
Verfahren zum Einziehen von Spulen in Nuten von Stator- oder Rotorblechpake ten elektrischer Maschinen, wobei die Spulen auf ein aus ringförmig angeordneten parallelen Einziehlamellen und einem axial verfahrbaren Einziehstempel beste hendes Einziehwerkzeug übertragen werden und von diesem in die Nuten einge zogen werden, dadurch gekennzeichnet, dass die Spulen gleiche Größe aufwei sen und die Einziehlamellen und Nuten mindestens zwei unterschiedliche Bauhö hen haben. Method for pulling coils into grooves of stator or rotor lamination packs th electrical machines, wherein the coils are transferred to an existing pulling tool consisting of annularly arranged parallel pull-in lamellas and an axially movable pull-in punch and are pulled into the grooves by this, characterized in that the coils aufwei sen the same size and the pull-in lamellae and grooves have at least two different heights.
Beschreibung der Figuren Description of the figures
Die Erfindung wird nachfolgend beispielhaft unter Bezugnahme auf die beigefügte Zeichnung beschrieben. The invention is described below by way of example with reference to the accompanying drawing.
Fig. 1 zeigt eine schematische Darstellung des Standes der Technik Fig. 1 shows a schematic representation of the prior art
Fig. 2 zeigt ebenfalls den Stand der Technik, Fig. 2 also shows the prior art,
Fig. 3 zeigt eine beispielhaften Ausführungsform, 3 shows an exemplary embodiment,
Fig. 4 zeigt einen Stator, Fig. 5 zeigt ein Einziehwerkzeug, Fig. 4 shows a stator, Fig. 5 shows a pull-in tool,
Fig. 6 und 7 zeigen den Stator mit dem Einziehwerkzeug, Fig. 6 and 7 show the stator with the pulling tool,
Fig. 8 zeigt eine Ansicht der abgerollten Außenfläche des Einziehwerkezugs mit exemplarischen Spulen. 8 shows a view of the unrolled outer surface of the drawing-in tool with exemplary coils.
In der Figur 3 ist wie in den Figuren 1 und 2 eine Ansicht auf den abgerollten Zylin dermantel 1 a des Stators 1 zu sehen. Schematisch sind unterschiedliche Spulen 2 gezeigt. Diese Spulen weisen alle dieselbe Größe, bzw. dieselbe Bauhöhe auf.In FIG. 3, as in FIGS. 1 and 2, a view of the unrolled Zylin dermantel 1 a of the stator 1 can be seen. Different coils 2 are shown schematically. These coils all have the same size or the same overall height.
Wie aus der Figur zu erkennen ist werden die Spulen unterschiedlich weit in die Nuten 5 des Stators eingezogen. In diesem gezeigten Ausführungsbeispiel sind die sechs Spulen 2 alle unterschiedlich weit in den Nuten verankert. Die Verwen dung von Spulen gleicher Größe hat natürlich den Vorteil, dass bei dem Wickeln der Spulen 2 nur eine Standardgröße hergestellt werden muss. Dadurch dass die Spulen 2 unterschiedlich weit in die Nuten 5 des Stators 1 eingezogen werden, verteilen sich die Wickelköpfe 3a und 3b gleichmäßig oberhalb und unterhalb des Stators 1 . Dadurch sind die Einbaugröße und die Größe der Wickelköpfe optimiert. As can be seen from the figure, the coils are drawn into the slots 5 of the stator to different degrees. In this exemplary embodiment shown, the six coils 2 are all anchored to different extents in the grooves. The use of coils of the same size naturally has the advantage that only one standard size has to be produced when winding the coils 2. Because the coils 2 are drawn into the slots 5 of the stator 1 to different extents, the winding heads 3a and 3b are evenly distributed above and below the stator 1. This optimizes the installation size and the size of the winding heads.
Figur 4 zeigt schematisch einen Stator 1 , vereinfacht verwendet für Stator- oder Rotorblechpakete, der die innen liegende Zylinderfläche 1 a aufweist. In dieser Zy linderfläche 1 a sind Nuten 5 eingebracht. Diese Nuten 5 erstrecken sich entlang der gesamten Bauhöhe des Stators 1 . FIG. 4 shows schematically a stator 1, used in simplified form for stator or rotor laminated cores, which has the inner cylinder surface 1a. In this Zy cylinder surface 1 a grooves 5 are introduced. These grooves 5 extend along the entire structural height of the stator 1.
In Figur 5 ist vereinfacht ein Einziehwerkzeug 10 zu erkennen. Das Einziehwerk zeug 10 wird dabei ohne Spulen dargestellt. Das Einziehwerkzeug 10 besteht maßgeblich aus einzelnen Einziehlamellen 1 1 , die über Schlitze 12 voneinander beanstandet entlang eines Rings angeordnet sind. Der Einziehstempel, der eben falls zu dem Einziehwerkzeug gehört, ist nicht zu sehen. Die Einziehlamellen 1 1 mit ihren Schlitzen 12 sind in diesem Ausführungsbeispiel in ihren Bauhöhen gestuft. Im Ausführungsbeispiel sind drei Bauhöhen H1 , H2 und H3 zu erkennen, die zu drei Einzugsebenen der Spulen 2 im Stator 1 führen. Zum Einziehen der Spulen wird wie in Figur 6 dargestellt das Einziehwerkzeug 10 in den StatorO 1 in Richtung des Pfeils eingeführt. In Figur 7 ist das Einziehwerkzeug 10 zu erkennen, nachdem der Einziehprozess abgeschlossen ist und das Einzieh werkzeug aus dem Stator herausgezogen wird. In Figur 8 ist eine Aufsicht auf den abgerollten Mantel des Einziehwerkzeug 10 dargestellt. In diesem Ausführungs beispiel sind die Einziehlamellen 1 1 mit den Schlitzen 12 ebenfalls auf drei Bauhö hen ausgelegt. Man erkennt die eingelegten Spulen 2 wobei die jeweiligen Spulen 2 mit Einziehlamellen 1 1 gleicher Bauhöhe Fl verbunden sind. A drawing-in tool 10 can be seen in a simplified manner in FIG. The Einziehwerk tool 10 is shown without coils. The drawing-in tool 10 essentially consists of individual drawing-in lamellae 11, which are spaced apart from one another via slots 12 along a ring. The insertion punch, which also belongs to the insertion tool, cannot be seen. The pull-in slats 1 1 with their slots 12 are stepped in their overall heights in this embodiment. In the exemplary embodiment, three overall heights H1, H2 and H3 can be seen, which lead to three drawing levels of the coils 2 in the stator 1. To pull in the coils, as shown in FIG. 6, the pull-in tool 10 is inserted into the stator O 1 in the direction of the arrow. The drawing-in tool 10 can be seen in FIG. 7 after the drawing-in process has been completed and the drawing-in tool has been withdrawn from the stator. In FIG. 8, a plan view of the unrolled jacket of the pull-in tool 10 is shown. In this embodiment, for example, the retractable lamellas 1 1 with the slots 12 are also designed for three Bauhö hen. The inserted coils 2 can be seen, the respective coils 2 being connected to pull-in lamellas 1 1 of the same overall height Fl.
Diese Erfindung kann durch geringfügige und kostengünstige Modifikation beste hender Einziehwerkzeuge bezüglich bestehender Einziehtiefe realisiert werden. This invention can be realized by slight and inexpensive modification of existing pulling tools with respect to the existing pulling depth.
Diese Idee kann für sämtliche elektrische Maschinen mit Runddrahtwicklung ange- wendet werden. This idea can be used for all electrical machines with round wire winding.
Durch geringere mechanische Kräfte beim Verpressen der Wickelköpfe entstehen geringere Belastungen und somit weniger Beschädigungen an den in der Wick lung eingebrachten Komponenten z.B. Temperatursensoren. The lower mechanical forces when pressing the winding heads result in lower loads and thus less damage to the components, such as temperature sensors, that are introduced into the winding.
Bezugszeichenliste List of reference symbols
1 Stator 1 stator
1 a Zylinderwand 1 a cylinder wall
2 Spule 2 coil
3, 3a, 3b Wickelkopf 3, 3a, 3b end winding
5 Nuten 5 grooves
10 Einziehwerkzeug 10 insertion tool
1 1 Einziehlamellen 1 1 pull-in slats
H, H1 , H2, H3 Bauhöhen H, H1, H2, H3 construction heights
12 Schlitze 12 slots

Claims

Ansprüche Expectations
1. Vorrichtung zum Einziehen von Spulen (2) in Nuten (5) von Stator- oder Rotorblechpaketen elektrischer Maschinen, wobei die Spulen (2) auf ein aus ringförmig angeordneten parallelen Einziehlamellen (1 1 ) und einem axial verfahrbaren Einziehstempel bestehendes Einziehwerkzeug (12) übertragbar und von diesem in die Nuten (2) einziehbar sind, dadurch ge kennzeichnet, dass die Spulen (2) gleiche Größe aufweisen und die Ein ziehlamellen (1 1 ) mindestens zwei unterschiedliche Bauhöhen (H) haben. 1. Device for pulling coils (2) into grooves (5) of stator or rotor laminations of electrical machines, the coils (2) on a pulling tool (12) consisting of annularly arranged parallel pulling lamellas (1 1) and an axially movable pulling punch can be transferred and drawn into the grooves (2) by this, characterized in that the coils (2) are of the same size and the pull-in slats (1 1) have at least two different heights (H).
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass drei unter schiedliche Bauhöhen (H1 , H2, H3) für die Einziehlamellen (1 1 ) und Schlitze (12) verwendet sind. 2. Device according to claim 1, characterized in that three under different heights (H1, H2, H3) for the pull-in lamellae (1 1) and slots (12) are used.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Spulen (2) gleicher Größe nach dem Einziehen in den Stator (1 ) unter schiedliche Einbauebenen im Stator aufweisen. 3. Device according to claim 1 or 2, characterized in that the coils (2) of the same size after being drawn into the stator (1) have different installation levels in the stator.
4. Stator hergestellt nach einem der Ansprüche 1 bis 3, dadurch gekenn 4. Stator manufactured according to one of claims 1 to 3, characterized
zeichnet, dass die Wickelköpfe (3a, 3b) oberhalb und unterhalb des Stators (1 ) gleiche Baugröße aufweisen. shows that the winding heads (3a, 3b) above and below the stator (1) have the same size.
5. Verfahren zum Einziehen von Spulen (2) in Nuten (5) von Stator- oder Ro torblechpaketen elektrischer Maschinen, wobei die Spulen (2) auf ein aus ringförmig angeordneten parallelen Einziehlamellen und einem axial ver fahrbaren Einziehstempel bestehendes Einziehwerkzeug (10) übertragen werden und von diesem in die Nuten (5) eingezogen werden, dadurch ge kennzeichnet, dass die Spulen (2) gleiche Größe aufweisen und die Ein ziehlamellen (1 1 ) mindestens zwei unterschiedliche Bauhöhen (H) haben. 5. A method for pulling coils (2) in grooves (5) of stator or Ro torblechpaketen electrical machines, the coils (2) are transferred to a pulling tool (10) made of annularly arranged parallel pull-in lamellae and an axially movable pull-in punch and are drawn into the grooves (5) by this, characterized in that the coils (2) have the same size and the pull-in lamellae (11) have at least two different heights (H).
PCT/EP2020/066783 2019-06-26 2020-06-17 Method and device for drawing in windings WO2020260095A1 (en)

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DE102019209272.1A DE102019209272A1 (en) 2019-06-26 2019-06-26 Method and apparatus for drawing in bobbins

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151638A (en) * 1960-12-19 1964-10-06 Emerson Electric Co Apparatus and method for winding and inserting coils
FR1515436A (en) * 1966-03-21 1968-03-01 Industra Products Coil transfer tool
US3630240A (en) * 1969-09-18 1971-12-28 Essex International Inc Winding and transfer apparatus for dynamoelectric machine stator coils
US3748714A (en) * 1971-02-24 1973-07-31 Emerson Electric Co Coil insertion device
JPS55109159A (en) * 1979-02-13 1980-08-22 Aichi Emason Denki Kk Coil inserter
EP0949746A2 (en) 1998-04-06 1999-10-13 Otto Rist Apparatus for producing coil windings into stator laminated cores
CN101523695A (en) * 2006-10-04 2009-09-02 康弗蒂姆有限公司 Stator for electrical machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151638A (en) * 1960-12-19 1964-10-06 Emerson Electric Co Apparatus and method for winding and inserting coils
FR1515436A (en) * 1966-03-21 1968-03-01 Industra Products Coil transfer tool
US3630240A (en) * 1969-09-18 1971-12-28 Essex International Inc Winding and transfer apparatus for dynamoelectric machine stator coils
US3748714A (en) * 1971-02-24 1973-07-31 Emerson Electric Co Coil insertion device
JPS55109159A (en) * 1979-02-13 1980-08-22 Aichi Emason Denki Kk Coil inserter
EP0949746A2 (en) 1998-04-06 1999-10-13 Otto Rist Apparatus for producing coil windings into stator laminated cores
CN101523695A (en) * 2006-10-04 2009-09-02 康弗蒂姆有限公司 Stator for electrical machine

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