EP1354391A1 - Component for the rotor or stator of an electrical machine - Google Patents

Component for the rotor or stator of an electrical machine

Info

Publication number
EP1354391A1
EP1354391A1 EP01995548A EP01995548A EP1354391A1 EP 1354391 A1 EP1354391 A1 EP 1354391A1 EP 01995548 A EP01995548 A EP 01995548A EP 01995548 A EP01995548 A EP 01995548A EP 1354391 A1 EP1354391 A1 EP 1354391A1
Authority
EP
European Patent Office
Prior art keywords
component
carrier
pole teeth
component according
carrier bodies
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.)
Withdrawn
Application number
EP01995548A
Other languages
German (de)
French (fr)
Inventor
Ralf Schmidt
Markus Heidrich
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Priority claimed from DE10106717A external-priority patent/DE10106717A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1354391A1 publication Critical patent/EP1354391A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores

Definitions

  • EP 730 334 AI shows a stand for an electrical external pole machine, in which the stand is assembled from two parts. Due to this two-part shape of the stand, the individual parts cannot be wound, but must be assembled with pre-made spools. The advantages of this type of assembling the
  • stator essentially only results for two poles. Although an exemplary embodiment for several poles is also specified, these are only secondary poles and the desired advantage of better filling of the slots is no longer achieved with more than two poles.
  • JP 2000209794 AI or US Pat. No. 5,859,486 show a stator which consists of as many segments as there are pole teeth. This creates a large number of parts that have to be assembled in a complex manner.
  • US Pat. No. 5,552,651 shows a rotor which is made up of two parts. However, the rotor has no windings around the pole teeth.
  • stators or rotors are known in which the teeth are set individually. Every single pole tooth has to be fastened, which makes a complex assembly process necessary. These stators have reduced stability. Furthermore, each individual coil must be contacted, which results in a large number of contact points and complex operations with, for example, lead frames.
  • the component according to the invention for an electrical machine with the characterizing features of claim 1 5 has the advantage that in a simple manner and
  • a component for an electrical machine is formed in which an optimal filling of the slots with windings or coil packs is achieved. In this way, a smaller size of an electrical machine can be achieved.
  • Carrier bodies are formed because there is a large distance between the pole teeth of a single carrier body.
  • Fig. 1, 2) or complete (Fig. 3) creating the winding
  • the carrier body advantageously consists of 0 sheet laminates because eddy currents are minimized.
  • the carrier body advantageously consists of a plastic / magnetic material because it is easy to manufacture. 2/058210
  • Such a component can advantageously form a stator or a rotor.
  • Figure la shows a first embodiment of the component according to the invention in the unassembled state
  • Figure lb in the partially assembled state
  • Figure lc in the assembled state
  • Figure 2a shows another embodiment of a component according to the invention in the unassembled state
  • Figure 2b in the partially assembled state
  • Figure 2c in the assembled state State
  • FIG. 3a shows a further exemplary embodiment of the component according to the invention in the non-assembled state
  • FIG. 3b in the assembled state.
  • FIG. 1 a shows a component 1 according to the invention in the non-assembled state.
  • the component 1 can be excited magnetically, for example by an electrical coil or a magnet, and is used for an electrical machine, e.g. a motor or generator is used.
  • the component 1 consists at least of a first carrier body 3 and a second carrier body 5. Both carrier bodies 3, 5 are, for example, identical and are assembled in the axial direction 7 and together attached.
  • the axial direction 7 forms, for example, a central axis 7 of the component 1.
  • the carrier body 3, 5 has, for example, an outer ring 9, on which, for example, at least one pole tooth 11 is formed.
  • the pole tooth 11 is made in one piece with the outer ring 9, for example.
  • the pole tooth 11 can, however, also be attached to the ring 9, for example by being pushed on or molded on.
  • the pole tooth 11 projects beyond the ring 9 in an axial direction 7.
  • the pole tooth 11 For fastening the carrier bodies 3, 5 to one another, the pole tooth 11 has, for example, an insertion element 13 on the outer circumference, which is inserted into a corresponding recess 15 on the ring 9 of the other carrier body 5, 3. This prevents the carrier bodies 3, 5 from rotating relative to one another in the radial direction.
  • the carrier bodies 3 and 5 can also be fastened to one another if, for example, a press fit occurs between the insertion element 13 and the recess 15.
  • the carrier bodies 3, 5 can also be fastened to one another in other ways.
  • the component 1 then has six pole teeth 11.
  • the carrier body 3, 5 consists, for example, of sheet metal laminates or of a solid material.
  • the carrier body 3, 5 can also consist of a mixture of plastic and a magnetic material, in particular a soft magnetic material, which is injected, for example.
  • Magnetic material is understood to mean magnetizable material and / or magnetized material.
  • the material can be hard and / or soft magnetic.
  • One of the carrier bodies 3, 5 can consist of sheet metal laminate and the other consists of a mixture of plastic and a magnetic material,
  • FIG. 1b shows a component 1 in which the carrier bodies 3, 5 are partially pushed into one another.
  • the carrier bodies 3, 5 are joined together such that the pole teeth 11 of one carrier body 3 extend between the pole teeth 11 of the other carrier body 5.
  • Figure lc shows a component 1 in the assembled state.
  • the pole teeth 11 are each formed by another carrier body 3, 5, for example.
  • the rings 9 of the carrier bodies 3, 5 as well as the insertion elements 13 and the depressions 15 of the carrier bodies 3, 5 lie directly against one another, so that they form an outer ring 9, so to speak.
  • Such a component 1 is used for a stator of an internal rotor motor.
  • FIG. 1 a Even in the non-assembled state, as shown in FIG. 1 a, a prefabricated coil package 17 is arranged around each pole tooth 11 or a winding 17 has been wound.
  • the coils 17 are deliberately not shown in FIGS. 1 a and 1 b to show how the carrier bodies 3, 5 are constructed and are joined to one another. Due to the large distance between the pole teeth 11 of the individual carrier bodies 3, 5 in the unassembled state, there is a lot of space for a winding tool, in particular a needle, of a winding machine during the winding process, so that the winding process is greatly simplified.
  • the space is between the pole teeth 11 are optimally filled because the coils 17 can be pushed together very closely in the axial direction 7. During the winding process, for example, there must be enough space for the winding needle, ie a distance from the next spool 17, since the winding needle would otherwise be pinched.
  • FIG. 2a shows a further exemplary embodiment of a component 1 according to the invention.
  • the component 1 likewise consists, for example, of two carrier bodies 3, 5 which have pole teeth 11 which are arranged on an inner ring 9 and extend away from the ring 9 in the radial and axial direction.
  • the carrier bodies 3, 5 are assembled in a similar manner to that described in FIGS. 1 a, 1 b and 1 c.
  • facing the ring 9 on the pole teeth 11, for example, ring segment-shaped insertion elements 13 are formed which form depressions 15 between them for inserting the insertion elements 13 of the other carrier body 3, 5.
  • coils 17 are already present around the pole teeth 11, which are, for example, dovetail-shaped, but are not shown here for reasons of clarity.
  • Figure 2b shows the component 1 in a partially assembled state and Figure 2c in the assembled state.
  • the rings 9 of the carrier bodies 3, 5 form a ring 9 X which has an opening 19 into which, for example, a rotor shaft is inserted and fastened.
  • Such a component 1 is, for example, a stator for an external rotor motor or a rotor for an internal rotor motor.
  • the carrier bodies 3, 5 are designed in accordance with the descriptions for FIGS. 2a, 2b, 2c.
  • one carrier body 5 only has intermediate poles 11 ⁇ which are designed differently than the pole teeth 11 of the other carrier body 3, ie the intermediate poles 11 ⁇ have a pole head 21 which is narrower in the circumferential direction than that of the pole teeth 11.
  • the so-called intermediate poles 11 * are used for magnetic flux guidance.
  • the winding can be applied completely to carrier body 3 without interruption.
  • the rings facing ⁇ 9 to the intermediate poles 11 and pole teeth 11 which serve for assembling insertion elements 13 and recesses 15 are provided.

Abstract

According to the invention, a component (1) comprises at least two support bodies (3, 5) with pole teeth (11), whereby the separation between directly adjacent pole teeth (11) of the individual support body is sufficiently large that the winding process or the mounting of a coil is significantly simplified and an optimal filling between the pole teeth (11) is achieved.

Description

02/058210 02/058210
BAUELEMENTE DES ROTORS ODER DES STATORS EINER ELEKTRISCHEN MASCHINECOMPONENTS OF THE ROTOR OR STATOR OF AN ELECTRICAL MACHINE
Stand der TechnikState of the art
Die EP 730 334 AI zeigt einen Ständer für eine elektrische Aussenpolmaschine, bei der der Ständer aus zwei Teilen zusammengebaut is . Aufgrund dieser zweigeteilten Form des Ständers können die einzelnen Teile nicht bewickelt werden, sondern müssen mit vorgefertigten Spulen zusammengebaut werden. Die Vorteile dieser Art des Zusammenbauens desEP 730 334 AI shows a stand for an electrical external pole machine, in which the stand is assembled from two parts. Due to this two-part shape of the stand, the individual parts cannot be wound, but must be assembled with pre-made spools. The advantages of this type of assembling the
Ständers ergeben sich im wesentlichen nur für zwei Pole. Es ist zwar auch ein Ausführungsbeispiel für mehrere Pole angegeben, jedoch handelt es sich dann nur um Nebenpole und der gewünschte Vorteil der besseren Füllung der Nuten wird bei mehr als zwei Polen nicht mehr erreicht.The stator essentially only results for two poles. Although an exemplary embodiment for several poles is also specified, these are only secondary poles and the desired advantage of better filling of the slots is no longer achieved with more than two poles.
Die JP 2000209794 AI oder die US-PS 5,859,486 zeigen einen Stator, der aus so vielen Segmenten besteht, wie Polzähne vorhanden sind. Dadurch entsteht eine grosse Anzahl von Teilen, die auf aufwendige Art und Weise zusammengebaut werden müssen.JP 2000209794 AI or US Pat. No. 5,859,486 show a stator which consists of as many segments as there are pole teeth. This creates a large number of parts that have to be assembled in a complex manner.
Die US-PS 5,552,651 zeigt einen Rotor, der aus zwei Teilen aufgebaut ist. Der Rotor weist jedoch keine Wicklungen um die Polzähne auf.US Pat. No. 5,552,651 shows a rotor which is made up of two parts. However, the rotor has no windings around the pole teeth.
Ausserdem sind Statoren oder Rotoren bekannt, bei denen die Zähne einzeln gesetzt werden. Dabei muss jeder einzelne Polzahn befestigt werden, wodurch ein aufwendiger Montageprozess notwendig wird. Diese Statoren haben eine verminderte Stabilität. Desweiteren muss jede Einzelspule kontaktiert werden, wodurch sich eine Vielzahl an Kontaktstellen und aufwendigen Versehaltungen mit z.B. Stanzgittern ergeben. Vorteile der ErfindungIn addition, stators or rotors are known in which the teeth are set individually. Every single pole tooth has to be fastened, which makes a complex assembly process necessary. These stators have reduced stability. Furthermore, each individual coil must be contacted, which results in a large number of contact points and complex operations with, for example, lead frames. Advantages of the invention
Das erfindungsgemässe Bauelement für eine elektrische Maschine mit den kennzeichnenden Merkmalen des Anspruchs 1 5 hat demgegenüber den Vorteil, dass auf einfache Art undThe component according to the invention for an electrical machine with the characterizing features of claim 1 5 has the advantage that in a simple manner and
Weise ein Bauelement für eine elektrische Maschine gebildet ist, bei dem eine optimale Füllung der Nuten mit Wicklungen oder Spulenpaketen erreicht ist. So kann eine kleinere Baugrösse einer elektrischen Maschine erreicht werden.A component for an electrical machine is formed in which an optimal filling of the slots with windings or coil packs is achieved. In this way, a smaller size of an electrical machine can be achieved.
L0 Ausserdem ergeben sich extrem vereinfachte Bedingungen für ein Wickelverfahren, so dass verschiedene Wickelverfahren wie z.B. Flyerwickel und Nadelwicklung einsetzbar sind. Auch sind beliebig kleine Nutöffnungen machbar, da der Wicklungsdraht beim Wickeln nicht durch die NutδffnungL0 There are also extremely simplified conditions for a winding process, so that different winding processes such as Flyer winding and needle winding can be used. Any small slot openings are also feasible, since the winding wire does not pass through the slot opening during winding
L5 eingebracht werden muss . Ebenso können auch Spulen mit sehr dicken Drähten realisiert werden.L5 must be introduced. Coils with very thick wires can also be realized.
Es ergeben sich vorteilhafte Bedingungen für ein Wickelverfahren, wenn die in Umfangsrichtung direktThere are advantageous conditions for a winding process if the directly in the circumferential direction
10 benachbarten Polzahne des Bauelements nicht von demselben10 adjacent pole teeth of the component are not of the same
Trägerkörper gebildet sind, weil dadurch ein grosser Abstand zwischen den Polzähnen eines einzigen Trägerkörpers vorhanden ist. Durch zweiteiliges (Fig. 1, 2) oder vollständiges (Fig. 3) Erstellen der Wicklung wird dieCarrier bodies are formed because there is a large distance between the pole teeth of a single carrier body. By two-part (Fig. 1, 2) or complete (Fig. 3) creating the winding
5 Anzahl der Drahtenden im Vergleich zu einzeln gesetzten Zähnen stark reduziert. Dies führt zu einer stark vereinfachten Verschaltungs- und Kontaktiertechnik.5 The number of wire ends is greatly reduced compared to individually set teeth. This leads to a greatly simplified interconnection and contacting technology.
Der Trägerkörper besteht vorteilhafter Weise aus 0 Blechlaminaten, weil dadurch Wirbelströme minimiert sind.The carrier body advantageously consists of 0 sheet laminates because eddy currents are minimized.
Der Der Trägerkörper besteht vorteilhafter Weise aus einem Kunststoff/Magnetmaterial, weil dieses einfach herstellbar ist . 2/058210The carrier body advantageously consists of a plastic / magnetic material because it is easy to manufacture. 2/058210
Ein solches Bauelement kann auf vorteilhafte Weise einen Stator oder einen Rotor bilden.Such a component can advantageously form a stator or a rotor.
Zeichnungdrawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert .Embodiments of the invention are shown in simplified form in the drawing and explained in more detail in the following description.
Es zeigenShow it
Figur la ein erstes Ausführungsbeispiel des erfindungsgemässen Bauelements im nicht zusammengebauten Zustand, Figur lb im teilweise zusammengebauten Zustand, Figur lc im zusammengebauten Zustand, Figur 2a ein weiteres Ausführungsbeispiel eines erfindungsgemässen Bauelements im nicht zusammengebauten Zustand, Figur 2b im teilweise zusammengebauten Zustand, Figur 2c im zusammengebauten Zustand, Figur 3a ein weiteres Ausführungsbeispiel des erfindungsgemässen Bauelements im nicht zusammengebauten Zustand, Figur 3b im zusammengebauten Zustand.Figure la shows a first embodiment of the component according to the invention in the unassembled state, Figure lb in the partially assembled state, Figure lc in the assembled state, Figure 2a shows another embodiment of a component according to the invention in the unassembled state, Figure 2b in the partially assembled state, Figure 2c in the assembled state State, FIG. 3a shows a further exemplary embodiment of the component according to the invention in the non-assembled state, FIG. 3b in the assembled state.
Beschreibung der AusführungsbeispieleDescription of the embodiments
Figur la zeigt ein erfindungsgemasses Bauelement 1 im nicht zusammengebauten Zustand. Das Bauelement 1 ist magnetisch bspw. durch eine elektrische Spule oder einen Magneten erregbar und wird für eine elektrische Maschine, wie z.B. ein Motor oder Generator verwendet .FIG. 1 a shows a component 1 according to the invention in the non-assembled state. The component 1 can be excited magnetically, for example by an electrical coil or a magnet, and is used for an electrical machine, e.g. a motor or generator is used.
Das Bauelement 1 besteht zumindest aus einem ersten Trägerkörper 3 und einem zweiten Trägerkörper 5. Beide Trägerkörper 3 , 5 sind beispielsweise identisch und werden in axialer Richtung 7 zusammengebaut und miteinander befestigt. Die axiale Richtung 7 bildet bspw. eine Mittelachse 7 des Bauelements 1.The component 1 consists at least of a first carrier body 3 and a second carrier body 5. Both carrier bodies 3, 5 are, for example, identical and are assembled in the axial direction 7 and together attached. The axial direction 7 forms, for example, a central axis 7 of the component 1.
Der Trägerkörper 3, 5 weist bspw. einen äusseren Ring 9 auf, an dem bspw. zumindest ein Polzahn 11 ausgebildet ist. Der Polzahn 11 ist mit dem äusseren Ring 9 bspw. einteilig ausgeführt. Der Polzahn 11 kann aber auch an dem Ring 9 befestigt werden, bspw. dadurch, dass er aufgeschoben oder angespritzt wird. In diesem Ausführungsbeispiel sind es drei beispielsweise schwalbenschwanzförmig ausgebildete Polzähne 11, die mit dem äusseren Ring 9 einteilig ausgebildet sind. Der Polzahn 11 überragt den Ring 9 in einer axialen Richtung 7.The carrier body 3, 5 has, for example, an outer ring 9, on which, for example, at least one pole tooth 11 is formed. The pole tooth 11 is made in one piece with the outer ring 9, for example. The pole tooth 11 can, however, also be attached to the ring 9, for example by being pushed on or molded on. In this exemplary embodiment there are three pole teeth 11, for example in the form of a dovetail, which are formed in one piece with the outer ring 9. The pole tooth 11 projects beyond the ring 9 in an axial direction 7.
Zur Befestigung der Trägerkörper 3, 5 untereinander weist der Polzahn 11 bspw. am äusseren Umfang ein Einschubelement 13 auf, das in eine entsprechende Vertiefung 15 am Ring 9 des anderen Trägerkörpers 5, 3 eingeschoben wird. So wird verhindert, dass sich die Trägerkörper 3, 5 in Radialrichtung gegeneinander verdrehen. Gleichzeitig können so auch die Trägerkörper 3 und 5 miteinander befestigt werden, wenn es z.B. zwischen Einschubelement 13 und Vertiefung 15 zu einer Presspassung kommt . Die Trägerkörper 3, 5 können auch auf andere Art und Weise miteinander befestigt werden. Das Bauelement 1 hat dann sechs Polzähne 11.For fastening the carrier bodies 3, 5 to one another, the pole tooth 11 has, for example, an insertion element 13 on the outer circumference, which is inserted into a corresponding recess 15 on the ring 9 of the other carrier body 5, 3. This prevents the carrier bodies 3, 5 from rotating relative to one another in the radial direction. At the same time, the carrier bodies 3 and 5 can also be fastened to one another if, for example, a press fit occurs between the insertion element 13 and the recess 15. The carrier bodies 3, 5 can also be fastened to one another in other ways. The component 1 then has six pole teeth 11.
Der Trägerkörper 3, 5 besteht beispielsweise aus Blechlaminaten oder aus einem massiven Material. Der Trägerkörper 3 , 5 kann auch aus einem Gemisch aus Kunststoff und einem Magnetmaterial, insbesondere einem weichmagnetischen Material, bestehen, das bspw. gespritzt wird. Unter Magnetmaterial ist magnetisierbares Material und/oder magnetisiertes Material zu verstehen. Das Material kann hart und/oder weich magnetisch sein. 02/058210The carrier body 3, 5 consists, for example, of sheet metal laminates or of a solid material. The carrier body 3, 5 can also consist of a mixture of plastic and a magnetic material, in particular a soft magnetic material, which is injected, for example. Magnetic material is understood to mean magnetizable material and / or magnetized material. The material can be hard and / or soft magnetic. 02/058210
Einer der Trägerkörper 3 , 5 kann aus Blechlaminat bestehen und der andere besteht aus einem Gemisch aus Kunststoff und einem Magnetmaterial,One of the carrier bodies 3, 5 can consist of sheet metal laminate and the other consists of a mixture of plastic and a magnetic material,
Figur lb zeigt ein Bauelement 1, bei dem die Trägerkörper 3, 5 teilweise ineinander geschoben sind. Die beispielsweise ringsegmentförmig ausgebildeten Einschubelemente 13 der Trägerkörper 3, 5 liegen in Umfangsrichtung direkt aneinander an. Zusammengefügt werden die Trägerkörper 3, 5 so, dass sich die Polzahne 11 des einen Trägerkörpers 3 zwischen den Polzähnen 11 des anderen Trägerkörpers 5 erstrecken.FIG. 1b shows a component 1 in which the carrier bodies 3, 5 are partially pushed into one another. The insertion elements 13 of the carrier bodies 3, 5, for example in the form of a ring segment, lie directly against one another in the circumferential direction. The carrier bodies 3, 5 are joined together such that the pole teeth 11 of one carrier body 3 extend between the pole teeth 11 of the other carrier body 5.
Figur lc zeigt ein Bauelement 1 im zusammengebauten Zustand. In Umfangsrichtung werden die Polzähne 11 bspw. jeweils von einem anderen Trägerkörper 3, 5 gebildet. Ebenso liegen die Ringe 9 der Trägerkörper 3, 5 sowie die Einschubelemente 13 und die Vertiefungen 15 der Trägerkörper 3 , 5 direkt aneinander an, so dass diese quasi einen äusseren Ring 9 bilden. Ein solches Bauelement 1 wird für einen Stator eines Innenläufermotors verwendet .Figure lc shows a component 1 in the assembled state. In the circumferential direction, the pole teeth 11 are each formed by another carrier body 3, 5, for example. Likewise, the rings 9 of the carrier bodies 3, 5 as well as the insertion elements 13 and the depressions 15 of the carrier bodies 3, 5 lie directly against one another, so that they form an outer ring 9, so to speak. Such a component 1 is used for a stator of an internal rotor motor.
Schon im nicht zusammengebauten Zustand, wie in Figur la gezeigt, ist um jeden Polzahn 11 ein vorgefertigtes Spulenpaket 17 angeordnet oder eine Wicklung 17 gewickelt worden. Die Spulen 17 sind in den Figuren la und lb bewusst nicht dargestellt, um zu zeigen, wie die Trägerkörper 3, 5 aufgebaut sind und aneinandergefügt werden. Durch den grossen Abstand der Polzähne 11 der einzelnen Trägerkörper 3 , 5 im nicht zusammengebauten Zustand ist beim Wickelvorgang sehr viel Platz für ein Wickelwerzeug, insbesondere einer Nadel, einer Wickelmaschine vorhanden, so dass der Wickelvorgang stark vereinfacht ist . Im zusammengebauten Zustand (Figur lc) ist der Raum zwischen den Polzähnen 11 optimal gefüllt, weil die Spulen 17 in axialer Richtung 7 sehr dicht aneinander zusammengeschoben werden können. Beim Wickelvorgang muss z.B. für die Wickelnadel genügend Platz, d.h. Abstand zur nächsten Spule 17, vorhanden sein, da die Wickelnadel sonst eingeklemmt werden würde.Even in the non-assembled state, as shown in FIG. 1 a, a prefabricated coil package 17 is arranged around each pole tooth 11 or a winding 17 has been wound. The coils 17 are deliberately not shown in FIGS. 1 a and 1 b to show how the carrier bodies 3, 5 are constructed and are joined to one another. Due to the large distance between the pole teeth 11 of the individual carrier bodies 3, 5 in the unassembled state, there is a lot of space for a winding tool, in particular a needle, of a winding machine during the winding process, so that the winding process is greatly simplified. In the assembled state (Figure lc) the space is between the pole teeth 11 are optimally filled because the coils 17 can be pushed together very closely in the axial direction 7. During the winding process, for example, there must be enough space for the winding needle, ie a distance from the next spool 17, since the winding needle would otherwise be pinched.
Figur 2a zeigt ein weiteres Ausführungsbeispiel eines erfindungsgemässen Bauelements 1. Das Bauelement 1 besteht ebenfalls beispielsweise aus zwei Trägerkörpern 3, 5, die Polzahne 11 aufweisen, die an einem inneren Ring 9 angeordnet sind und sich in radialer und axialer Richtung vom Ring 9 weg erstrecken. Die Trägerkörper 3, 5 werden auf ähnliche Art und Weise wie in Figur la, lb und lc beschrieben, zusammengebaut. Hierfür sind dem Ring 9 zugewandt an den Polzähnen 11 beispielsweise ringsegmentförmige Einschubelemente 13 ausgebildet, die zwischen sich Vertiefungen 15 zum Einschieben der Einschubelemente 13 des anderen Trägerkörpers 3, 5 bilden. Auch hier sind im Vorfeld beispielsweise schon Spulen 17 um die beispielsweise schwalbenschwanzförmig ausgebildeten Polzähne 11 vorhanden, die jedoch aus Gründen der Übersichtlichkeit hier nicht gezeichnet sind.FIG. 2a shows a further exemplary embodiment of a component 1 according to the invention. The component 1 likewise consists, for example, of two carrier bodies 3, 5 which have pole teeth 11 which are arranged on an inner ring 9 and extend away from the ring 9 in the radial and axial direction. The carrier bodies 3, 5 are assembled in a similar manner to that described in FIGS. 1 a, 1 b and 1 c. For this purpose, facing the ring 9 on the pole teeth 11, for example, ring segment-shaped insertion elements 13 are formed which form depressions 15 between them for inserting the insertion elements 13 of the other carrier body 3, 5. Here too, for example, coils 17 are already present around the pole teeth 11, which are, for example, dovetail-shaped, but are not shown here for reasons of clarity.
Figur 2b zeigt das Bauelement 1 in teilweise zusammengebautem Zustand und Figur 2c in zusammengebautem Zustand. Die Ringe 9 der Trägerkörper 3, 5 bilden im zusammengebauten Zustand einen Ring 9X, der eine Öffnung 19 aufweist, in die beispielsweise eine Rotorwelle eingeschoben und befestigt ist.Figure 2b shows the component 1 in a partially assembled state and Figure 2c in the assembled state. In the assembled state, the rings 9 of the carrier bodies 3, 5 form a ring 9 X which has an opening 19 into which, for example, a rotor shaft is inserted and fastened.
Ein solches Bauelement 1 ist beispielsweise ein Stator für einen Aussenläufermotor oder ein Rotor für einen Innenläufermotor. In den Figuren 3a, 3b sind die Trägerkörper 3, 5 gemäss den Beschreibungen zu Figuren 2a, 2b, 2c ausgebildet. Jedoch weist der eine Trägerkörper 5 nur Zwischenpole 11 Λ auf, die anders als die Polzahne 11 des anderen Trägerkörpers 3 ausgebildet sind, d.h. die Zwischenpole 11 λ weisen einen Polkopf 21 auf, der in Umfangsrichtung schmaler ist als der der Polzähne 11. Um die Zwischenpole 11 x wird keine Spule 17 angeordnet oder eine Wicklung gewickelt . Die sogenannten Zwischenpole 11* dienen zur magnetischen Flussführung.Such a component 1 is, for example, a stator for an external rotor motor or a rotor for an internal rotor motor. In FIGS. 3a, 3b, the carrier bodies 3, 5 are designed in accordance with the descriptions for FIGS. 2a, 2b, 2c. However, one carrier body 5 only has intermediate poles 11 Λ which are designed differently than the pole teeth 11 of the other carrier body 3, ie the intermediate poles 11 λ have a pole head 21 which is narrower in the circumferential direction than that of the pole teeth 11. Around the intermediate poles 11 times no coil 17 is arranged or a winding is wound. The so-called intermediate poles 11 * are used for magnetic flux guidance.
Die Wicklung kann ohne Unterbrechung vollständig auf Trägerkörper 3 aufgebracht werden. Den Ringen 9 zugewandt sind an den Zwischenpolen 11 λ und Polzähnen 11 die zum Zusammenbau dienenden Einschubelemente 13 und Vertiefungen 15 vorgesehen. The winding can be applied completely to carrier body 3 without interruption. The rings facing λ 9 to the intermediate poles 11 and pole teeth 11 which serve for assembling insertion elements 13 and recesses 15 are provided.

Claims

Ansprüche Expectations
1. Bauelement für eine elektrische Maschine, das magnetisch erregbar ist, bestehend aus zumindest einem Trägerkörper, dadurch gekennzeichnet, dass zumindest zwei Trägerkörper (3, 5) in axialer Richtung (7) zusammengebaut das Bauelement (1) bilden.1. Component for an electrical machine, which is magnetically excitable, consisting of at least one carrier body, characterized in that at least two carrier bodies (3, 5) assembled in the axial direction (7) form the component (1).
2. Bauelement nach Anspruch 1, dadurch gekennzeichnet, dass zumindest einer der Trägerkörper (3, 5) zumindest einen2. Component according to claim 1, characterized in that at least one of the carrier bodies (3, 5) at least one
Polzahn (11) aufweist, und dass zumindest eine Spule (17) um den Polzahn (11) angeordnet ist.Has pole tooth (11), and that at least one coil (17) is arranged around the pole tooth (11).
3. Bauelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zumindest einer der Trägerkörper (3,5) Polzähne (11) hat, und dass die in Umfangsrichtung direkt benachbarten Polzähne (11) des Bauelements (1) nicht von demselben Trägerkörper (3, 5) gebildet sind.3. The component according to claim 1 or 2, characterized in that at least one of the carrier bodies (3, 5) has pole teeth (11), and that the pole teeth (11) of the component (1) which are directly adjacent in the circumferential direction are not from the same carrier body (3 , 5) are formed.
3 4. Bauelement nach Anspruch 1, 2, oder 3, dadurch gekennzeichnet, dass der Trägerkörper (3,5) aus Blechlaminaten besteht.3 4. Component according to claim 1, 2, or 3, characterized in that the carrier body (3,5) consists of sheet metal laminates.
5. Bauelement nach Anspruch 2 oder 3 , dadurch gekennzeichnet , dass die Polzähne (11) zumindest teilweise mit einem Ring (9) ä des Trägerkörpers (3, 5) verbunden sind.5. The component according to claim 2 or 3, characterized in that the pole teeth (11) are at least partially connected to a ring (9) of the support body (3, 5).
6. Bauelement nach Anspruch 1 oder 3, dadurch gekennzeichnet, dass das Bauelement (1) einen Stator bildet.6. The component according to claim 1 or 3, characterized in that the component (1) forms a stator.
) 7. Bauelement nach Anspruch 1 oder 3, dadurch gekennzeichnet, dass das Bauelement (1) einen Rotor bildet. ) 7. Component according to claim 1 or 3, characterized in that the component (1) forms a rotor.
8. Bauelement nach Anspruch 2, 3 oder 4 dadurch gekennzeichnet, dass mindestens einer der Trägerkörper (3, 5) zumindest ein Einschubelement (13) und mindestens einer der Trägerkörper (3, 5) zumindest eine Vertiefung (15) für das Einschubelement (13) aufweist, und dass die Trägerkörper (3, 5) durch das zumindest eine Einschubelernent (13) und die zumindest eine Vertiefung (15) so miteinander verbunden werden, dass sie sich nicht gegeneinander verdrehen.8. The component according to claim 2, 3 or 4, characterized in that at least one of the carrier bodies (3, 5) at least one insertion element (13) and at least one of the carrier bodies (3, 5) at least one recess (15) for the insertion element (13 ), and that the carrier bodies (3, 5) are connected to one another by the at least one insert element (13) and the at least one recess (15) in such a way that they do not twist against one another.
9. Bauelement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass einer der Trägerkörper (3, 5) Polzähne (11) mit Spulen (17) aufweist und der andere Trägerkörper (3, 5) mit Zwischenpolen (11 ) versehen ist, um die keine Spulen angeordnet sind und die nach dem Zusammenbau der Trägerkörper (3, 5) in Umfangsrichtung zwischen den Polzahnen (11) liegen.9. The component according to one of the preceding claims, characterized in that one of the carrier bodies (3, 5) has pole teeth (11) with coils (17) and the other carrier body (3, 5) is provided with intermediate poles (11) in order to no coils are arranged and which after assembly of the carrier bodies (3, 5) lie in the circumferential direction between the pole teeth (11).
10. Bauelement nach Anspruch 1, 2, 3 oder 4, dadurch gekennzeichnet, dass der Trägerkörper (3,5) aus einem Gemisch aus einem Kunststoff und einem magnetischen Material besteht. 10. The component according to claim 1, 2, 3 or 4, characterized in that the carrier body (3,5) consists of a mixture of a plastic and a magnetic material.
EP01995548A 2001-01-18 2001-11-29 Component for the rotor or stator of an electrical machine Withdrawn EP1354391A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10102011 2001-01-18
DE10102011 2001-01-18
DE10106717 2001-02-14
DE10106717A DE10106717A1 (en) 2001-01-18 2001-02-14 Component for an electrical machine
PCT/DE2001/004475 WO2002058210A1 (en) 2001-01-18 2001-11-29 Component for the rotor or stator of an electrical machine

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EP1354391A1 true EP1354391A1 (en) 2003-10-22

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EP01995548A Withdrawn EP1354391A1 (en) 2001-01-18 2001-11-29 Component for the rotor or stator of an electrical machine

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US (1) US20040113511A1 (en)
EP (1) EP1354391A1 (en)
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WO (1) WO2002058210A1 (en)

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WO2002058210A1 (en) 2002-07-25
US20040113511A1 (en) 2004-06-17

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