WO2023110253A1 - Rotor of an electric machine - Google Patents
Rotor of an electric machine Download PDFInfo
- Publication number
- WO2023110253A1 WO2023110253A1 PCT/EP2022/081791 EP2022081791W WO2023110253A1 WO 2023110253 A1 WO2023110253 A1 WO 2023110253A1 EP 2022081791 W EP2022081791 W EP 2022081791W WO 2023110253 A1 WO2023110253 A1 WO 2023110253A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- magnets
- pole
- rotor body
- matrix material
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- 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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
Definitions
- the invention is based on a rotor of an electrical machine according to the species of the main claim.
- a V-shaped, U-shaped or arcuate magnet layer is formed by a plurality of magnets, in particular permanent magnets, with the respective rotor pole being divided into an inner pole segment and an outer pole segment as seen through the magnet layer in the radial direction.
- At least one magnetic pocket for receiving the magnets of the magnetic layer is formed in the respective rotor pole between the outer pole segment and the inner pole segment, with the rotor body being surrounded by a rotor sleeve.
- the rotor according to the invention of an electrical machine with the characterizing features of the main claim has the advantage that the manufacture of the rotor is simplified and the manufacturing costs of the rotor are reduced. According to the invention, this is achieved in that the matrix material of the rotor sleeve is also used for fastening the magnets of the rotor, so that fewer process steps are required to manufacture the rotor. According to the invention it is provided that
- the rotor sleeve comprises a fiber winding wound around the rotor body, the rotor body has channel-shaped distribution paths radially inside the magnetic layers, each of which opens into one of the magnetic pockets, the magnetic pockets are each designed to be open towards the outer circumference of the rotor body, the fiber winding is embedded in a hardened matrix material, which in the liquid state via the distribution paths and the magnetic pockets is routed to the outer circumference of the rotor body to form a fiber composite of fiber winding and hardened matrix material and which is also used to attach the magnets arranged in the magnet pockets.
- the matrix material of the rotor sleeve is an adhesive that can be cured, in particular, thermally. In this way, the same adhesive can be used for fixing the filament winding dry wound on the rotor body and for fixing the magnets.
- the fiber winding of the rotor sleeve is a glass fiber or carbon fiber winding. In this way, a particularly high speed stability can be achieved.
- the fiber winding of the rotor sleeve is wound up dry onto the rotor body and is subsequently wetted with matrix material via the magnet pockets to form the fiber composite.
- the same adhesive can be used for fixing the filament winding dry wound on the rotor body and for fixing the magnets.
- the cycle time in the manufacture of the rotor is reduced, since dry fibers can be wound more quickly than wet fibers wet with matrix material.
- each rotor pole has an axial channel section for axial distribution in the laminated core and a radial channel section for introduction into the respective magnet pocket. In this way, the matrix material can be distributed particularly uniformly over the axial length of the rotor and from there in the radial direction. A certain amount of leakage from the distributor path into cavities in the laminated core can occur here.
- Fig.l shows a rotor according to the invention of an electrical machine
- Fig.2 shows a sectional view of the rotor according to Fig.l
- Fig.3 shows a partial view of the rotor according to Fig.l.
- Fig.l shows a rotor according to the invention of an electrical machine.
- Fig.2 shows a sectional view of the rotor according to Fig.l.
- the rotor 1 of an electrical machine has a rotor body 3 which can be rotated about a rotor axis 2 and has a plurality of rotor poles 4 each with a pole center 5 and is designed, for example, as a laminated rotor core comprising a large number of laminations 6 .
- a V-shaped, U-shaped or arc-shaped magnet layer 7 is formed by a plurality of magnets 8, for example permanent magnets.
- the respective rotor pole 4 is divided into an inner pole segment 10 and an outer pole segment 11 by the magnet layer 7 viewed in the radial direction with respect to the rotor axis 2 .
- the inner pole segments 10 of all rotor poles 4 are connected to one another in one piece, for example.
- At least one magnet pocket 12 for receiving the magnets 8 of the magnet layer 7 is formed in the respective rotor pole 4 between the respective outer pole segment 11 and the respective inner pole segment 10 .
- the rotor body 3 is surrounded by a rotor sleeve 13 radially on the outside with respect to the rotor axis 2 .
- the rotor sleeve 13 comprises a fiber winding 14 wound around the rotor body 3,
- the rotor body 3 has channel-shaped distribution paths 16 radially inside the magnet layers 7, each of which opens into one of the magnet pockets 12 (Fig. 2),
- the magnetic pockets 12 are designed to be open towards the outer circumference of the rotor body 3,
- the fiber winding 14 is embedded in a hardened matrix material 15, which is conducted in the liquid state via the distribution paths 16 and the magnetic pockets 12 to the outer circumference of the rotor body 3 to form a fiber composite of fiber winding 14 and hardened matrix material 15 and which is also used to fasten the in the magnet pockets 12 arranged magnets 8 is used.
- the matrix material 15 of the rotor sleeve 13 is, for example, an adhesive that is particularly thermally curable.
- the fiber winding 14 of the rotor sleeve 13 is, for example, a glass fiber or carbon fiber winding. According to the invention, the fiber winding 14 of the rotor sleeve 13 is wound dry onto the rotor body 3 and is subsequently wetted with matrix material 15 via the distribution paths 16 and the magnetic pockets 12 to form the fiber composite.
- the respective inner pole segment 10 is connected by the matrix material 15 and the rotor sleeve 13 to the respective outer pole segment 11 without a metal bridge, so that magnetic stray fluxes are avoided.
- metal webs could also be provided for connecting the respective inner pole segment 10 to the respective outer pole segment 11 .
- FIG. 3 shows an enlarged partial view of the rotor according to FIG.
- a distribution path 16 is provided for each rotor pole 4 .
- one of the distribution paths 16 can also branch out and open into a number of magnetic pockets 12 from a number of rotor poles 4 .
- the respective distributor path 16 can have an axial channel section 16.1 for the axial
- the respective distribution path 16 from the respective inner pole segment 10 opens, for example, directly into the respective magnet pocket 12.
- the matrix material 15 can be injected at the end faces of the rotor body 3 via injection points 19 into the axial channel section 16.1 of the distribution paths 16. The promotion of the matrix material 15 through the distribution paths 16 on the
- Magnetic ashing 12 to the fiber winding 14 can be effected by the injection pressure and/or by rotating the rotor 1 .
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Beschreibung Description
Titel title
Rotor einer elektrischen Maschine Rotor of an electrical machine
Stand der Technik State of the art
Die Erfindung geht aus von einem Rotor einer elektrischen Maschine nach der Gattung des Hauptanspruchs. The invention is based on a rotor of an electrical machine according to the species of the main claim.
Es ist schon ein Rotor einer elektrischen Maschine aus Fig.8E der US2020266677 A bekannt, mit einem um eine Rotorachse drehbaren Rotorkörper, der mehrere Rotorpole mit jeweils einer Polmitte aufweist und insbesondere als Rotorblechpaket, das eine Vielzahl von Blechlamellen umfasst, ausgebildet ist. In zumindest einem der Rotorpole ist eine V-förmige, U-förmige oder bogenförmige Magnetlage von mehreren Magneten, insbesondere Permanentmagneten, ausgebildet, wobei der jeweilige Rotorpol durch die Magnetlage in radialer Richtung gesehen in ein Polinnensegment und ein Polaußensegment unterteilt ist. In dem jeweiligen Rotorpol ist zwischen dem Polaußensegment und dem Polinnensegment zumindest eine Magnettasche zur Aufnahme der Magnete der Magnetlage gebildet, wobei der Rotorkörper von einer Rotorhülse umschlossen ist. A rotor of an electric machine is already known from FIG. In at least one of the rotor poles, a V-shaped, U-shaped or arcuate magnet layer is formed by a plurality of magnets, in particular permanent magnets, with the respective rotor pole being divided into an inner pole segment and an outer pole segment as seen through the magnet layer in the radial direction. At least one magnetic pocket for receiving the magnets of the magnetic layer is formed in the respective rotor pole between the outer pole segment and the inner pole segment, with the rotor body being surrounded by a rotor sleeve.
Vorteile der Erfindung Advantages of the Invention
Der erfindungsgemäße Rotor einer elektrischen Maschine mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, dass die Herstellung des Rotors vereinfacht wird und die Herstellungskosten des Rotors verringert werden. Dies wird erfindungsgemäß erreicht, indem das Matrixmaterial der Rotorhülse zusätzlich zur Befestigung der Magnete des Rotors verwendet wird, so dass weniger Prozessschritte zur Herstellung des Rotors erforderlich sind. Erfindungsgemäß ist dazu vorgesehen, dass The rotor according to the invention of an electrical machine with the characterizing features of the main claim has the advantage that the manufacture of the rotor is simplified and the manufacturing costs of the rotor are reduced. According to the invention, this is achieved in that the matrix material of the rotor sleeve is also used for fastening the magnets of the rotor, so that fewer process steps are required to manufacture the rotor. According to the invention it is provided that
- die Rotorhülse eine um den Rotorkörper gewickelte Faserwicklung umfasst, der Rotorkörper radial innerhalb der Magnetlagen kanalförmige Verteilerpfade aufweist, die jeweils in eine der Magnettaschen münden, die Magnettaschen zum Außenumfang des Rotorkörpers hin jeweils offen ausgebildet sind, die Faserwicklung in einem ausgehärteten Matrixmaterial eingebettet ist, das im flüssigen Zustand über die Verteilerpfade und die Magnettaschen an den Außenumfang des Rotorkörpers geleitet ist zur Bildung eines Faserverbunds aus Faserwicklung und ausgehärtetem Matrixmaterial und das zusätzlich der Befestigung der in den Magnettaschen angeordneten Magnete dient. - the rotor sleeve comprises a fiber winding wound around the rotor body, the rotor body has channel-shaped distribution paths radially inside the magnetic layers, each of which opens into one of the magnetic pockets, the magnetic pockets are each designed to be open towards the outer circumference of the rotor body, the fiber winding is embedded in a hardened matrix material, which in the liquid state via the distribution paths and the magnetic pockets is routed to the outer circumference of the rotor body to form a fiber composite of fiber winding and hardened matrix material and which is also used to attach the magnets arranged in the magnet pockets.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch angegebenen Rotors einer elektrischen Maschine möglich. Advantageous further developments and improvements of the rotor of an electrical machine specified in the main claim are possible as a result of the measures listed in the subclaims.
Besonders vorteilhaft ist, wenn das Matrixmaterial der Rotorhülse ein Klebstoff ist, der insbesondere thermisch aushärtbar ist. Auf diese Weise kann derselbe Klebstoff für das Fixieren der trocken auf den Rotorkörper aufgewickelten Faserwicklung und für das Fixieren der Magnete verwendet werden. It is particularly advantageous if the matrix material of the rotor sleeve is an adhesive that can be cured, in particular, thermally. In this way, the same adhesive can be used for fixing the filament winding dry wound on the rotor body and for fixing the magnets.
Weiterhin vorteilhaft ist, wenn die Faserwicklung der Rotorhülse eine Glasfaseroder Carbonfaser-Wicklung ist. Auf diese Weise kann eine besonders hohe Drehzahlfestigkeit erreicht werden. It is also advantageous if the fiber winding of the rotor sleeve is a glass fiber or carbon fiber winding. In this way, a particularly high speed stability can be achieved.
Darüber hinaus vorteilhaft ist, wenn die Faserwicklung der Rotorhülse trocken auf den Rotorkörper aufgewickelt ist und nachträglich über die Magnettaschen mit Matrixmaterial benetzt ist zur Bildung des Faserverbunds. Auf diese Weise kann derselbe Klebstoff für das Fixieren der trocken auf den Rotorkörper aufgewickelten Faserwicklung und für das Fixieren der Magnete verwendet werden. Außerdem wird die Taktzeit bei der Herstellung des Rotors verkürzt, da trockene Fasern schneller gewickelt werden können als mit Matrixmaterial benetzte nasse Fasern. It is also advantageous if the fiber winding of the rotor sleeve is wound up dry onto the rotor body and is subsequently wetted with matrix material via the magnet pockets to form the fiber composite. In this way, the same adhesive can be used for fixing the filament winding dry wound on the rotor body and for fixing the magnets. In addition, the cycle time in the manufacture of the rotor is reduced, since dry fibers can be wound more quickly than wet fibers wet with matrix material.
Sehr vorteilhaft ist es, wenn pro Rotorpol ein Verteilerpfad vorgesehen ist, da das Matrixmaterial auf diese Weise besonders gleichmäßig über den Umfang der Faserwicklung verteilt werden kann. Auch vorteilhaft ist, wenn der jeweilige Verteilerpfad einen axialen Kanalabschnitt zur axialen Verteilung im Blechpaket und einen radialen Kanalabschnitt zur Einleitung in die jeweilige Magnettasche aufweist. Auf diese Weise kann das Matrixmaterial besonders gleichmäßig über die axiale Länge des Rotors und von dort aus in radialer Richtung verteilt werden. Eine gewisse Leckage aus dem Verteilerpfad in Hohlräume des Blechpakets kann hierbei auftreten. It is very advantageous if one distribution path is provided for each rotor pole, since in this way the matrix material can be distributed particularly evenly over the circumference of the fiber winding. It is also advantageous if the respective distribution path has an axial channel section for axial distribution in the laminated core and a radial channel section for introduction into the respective magnet pocket. In this way, the matrix material can be distributed particularly uniformly over the axial length of the rotor and from there in the radial direction. A certain amount of leakage from the distributor path into cavities in the laminated core can occur here.
Zeichnung drawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. An embodiment of the invention is shown in simplified form in the drawing and explained in more detail in the following description.
Fig.l zeigt einen erfindungsgemäßen Rotor einer elektrischen Maschine, Fig.2 eine Schnittansicht des Rotors nach Fig.l und Fig.3 eine Teilansicht des Rotors nach Fig.l. Fig.l shows a rotor according to the invention of an electrical machine, Fig.2 shows a sectional view of the rotor according to Fig.l and Fig.3 shows a partial view of the rotor according to Fig.l.
Beschreibung des Ausführungsbeispiels Description of the embodiment
Fig.l zeigt einen erfindungsgemäßen Rotor einer elektrischen Maschine. Fig.2 zeigt eine Schnittansicht des Rotors nach Fig.l. Fig.l shows a rotor according to the invention of an electrical machine. Fig.2 shows a sectional view of the rotor according to Fig.l.
Der Rotor 1 einer elektrischen Maschine hat einen um eine Rotorachse 2 drehbaren Rotorkörper 3, der mehrere Rotorpole 4 mit jeweils einer Polmitte 5 aufweist und beispielsweise als Rotorblechpaket umfassend eine Vielzahl von Blechlamellen 6 ausgebildet ist. In zumindest einem der Rotorpole 4 ist eine V- förmige, U-förmige oder bogenförmige Magnetlage 7 von mehreren Magneten 8, beispielsweise Permanentmagnete, ausgebildet. Der jeweilige Rotorpol 4 ist durch die Magnetlage 7 in radialer Richtung bezüglich der Rotorachse 2 gesehen in ein Polinnensegment 10 und ein Polaußensegment 11 unterteilt. Die Polinnensegmente 10 aller Rotorpole 4 sind beispielsweise einstückig miteinander verbunden. In dem jeweiligen Rotorpol 4 ist zwischen dem jeweiligen Polaußensegment 11 und dem jeweiligen Polinnensegment 10 zumindest eine Magnettasche 12 zur Aufnahme der Magnete 8 der Magnetlage 7 gebildet. Der Rotorkörper 3 ist radial außen bezüglich der Rotorachse 2 von einer Rotorhülse 13 umschlossen. The rotor 1 of an electrical machine has a rotor body 3 which can be rotated about a rotor axis 2 and has a plurality of rotor poles 4 each with a pole center 5 and is designed, for example, as a laminated rotor core comprising a large number of laminations 6 . In at least one of the rotor poles 4, a V-shaped, U-shaped or arc-shaped magnet layer 7 is formed by a plurality of magnets 8, for example permanent magnets. The respective rotor pole 4 is divided into an inner pole segment 10 and an outer pole segment 11 by the magnet layer 7 viewed in the radial direction with respect to the rotor axis 2 . The inner pole segments 10 of all rotor poles 4 are connected to one another in one piece, for example. At least one magnet pocket 12 for receiving the magnets 8 of the magnet layer 7 is formed in the respective rotor pole 4 between the respective outer pole segment 11 and the respective inner pole segment 10 . The The rotor body 3 is surrounded by a rotor sleeve 13 radially on the outside with respect to the rotor axis 2 .
Erfindungsgemäß ist vorgesehen, dass According to the invention it is provided that
- die Rotorhülse 13 eine um den Rotorkörper 3 gewickelte Faserwicklung 14 umfasst, - the rotor sleeve 13 comprises a fiber winding 14 wound around the rotor body 3,
- der Rotorkörper 3 radial innerhalb der Magnetlagen 7 kanalförmige Verteilerpfade 16 aufweist, die jeweils in eine der Magnettaschen 12 münden (Fig.2), - The rotor body 3 has channel-shaped distribution paths 16 radially inside the magnet layers 7, each of which opens into one of the magnet pockets 12 (Fig. 2),
- die Magnettaschen 12 zum Außenumfang des Rotorkörpers 3 hin jeweils offen ausgebildet sind, - the magnetic pockets 12 are designed to be open towards the outer circumference of the rotor body 3,
- die Faserwicklung 14 in einem ausgehärteten Matrixmaterial 15 eingebettet ist, das im flüssigen Zustand über die Verteilerpfade 16 und die Magnettaschen 12 an den Außenumfang des Rotorkörpers 3 geleitet ist zur Bildung eines Faserverbunds aus Faserwicklung 14 und ausgehärtetem Matrixmaterial 15 und das zusätzlich der Befestigung der in den Magnettaschen 12 angeordneten Magnete 8 dient. - The fiber winding 14 is embedded in a hardened matrix material 15, which is conducted in the liquid state via the distribution paths 16 and the magnetic pockets 12 to the outer circumference of the rotor body 3 to form a fiber composite of fiber winding 14 and hardened matrix material 15 and which is also used to fasten the in the magnet pockets 12 arranged magnets 8 is used.
Das Matrixmaterial 15 der Rotorhülse 13 ist beispielsweise ein Klebstoff, der insbesondere thermisch aushärtbar ist. Die Faserwicklung 14 der Rotorhülse 13 ist beispielsweise eine Glasfaser- oder Carbonfaser-Wicklung. Die Faserwicklung 14 der Rotorhülse 13 ist erfindungsgemäß trocken auf den Rotorkörper 3 aufgewickelt und ist nachträglich über die Verteilerpfade 16 und die Magnettaschen 12 mit Matrixmaterial 15 benetzt zur Bildung des Faserverbunds. The matrix material 15 of the rotor sleeve 13 is, for example, an adhesive that is particularly thermally curable. The fiber winding 14 of the rotor sleeve 13 is, for example, a glass fiber or carbon fiber winding. According to the invention, the fiber winding 14 of the rotor sleeve 13 is wound dry onto the rotor body 3 and is subsequently wetted with matrix material 15 via the distribution paths 16 and the magnetic pockets 12 to form the fiber composite.
In dem jeweiligen Rotorpol 4 ist gemäß dem Ausführungsbeispiel das jeweilige Polinnensegment 10 durch das Matrixmaterial 15 und die Rotorhülse 13 mit dem jeweiligen Polaußensegment 11 metallsteglos verbunden, so dass magnetische Streuflüsse vermieden sind. Alternativ könnten zur Verbindung vom jeweiligen Polinnensegment 10 mit dem jeweiligen Polaußensegment 11 aber auch Metallstege vorgesehen sein. In the respective rotor pole 4, according to the exemplary embodiment, the respective inner pole segment 10 is connected by the matrix material 15 and the rotor sleeve 13 to the respective outer pole segment 11 without a metal bridge, so that magnetic stray fluxes are avoided. Alternatively, however, metal webs could also be provided for connecting the respective inner pole segment 10 to the respective outer pole segment 11 .
Fig.3 zeigt eine vergrößerte Teilansicht des Rotors nach Fig.l. Pro Rotorpol 4 ist beispielsweise ein Verteilerpfad 16 vorgesehen. Alternativ kann ein einzelner der Verteilerpfade 16 sich auch verzweigen und in mehrere Magnettaschen 12 von mehreren Rotorpolen 4 münden. Der jeweilige Verteilerpfad 16 kann einen axialen Kanalabschnitt 16.1 zur axialen3 shows an enlarged partial view of the rotor according to FIG. For example, a distribution path 16 is provided for each rotor pole 4 . Alternatively, one of the distribution paths 16 can also branch out and open into a number of magnetic pockets 12 from a number of rotor poles 4 . The respective distributor path 16 can have an axial channel section 16.1 for the axial
Verteilung im Blechpaket des Rotorkörpers 3 und einen radialen Kanalabschnitt 16.2 zur Einleitung in die jeweilige Magnettasche 12 aufweisen. Have distribution in the laminated core of the rotor body 3 and a radial channel section 16.2 for introduction into the respective magnetic pocket 12.
Der jeweilige Verteilerpfad 16 vom jeweiligen Polinnensegment 10 mündet beispielsweise unmittelbar in die jeweilige Magnettasche 12. The respective distribution path 16 from the respective inner pole segment 10 opens, for example, directly into the respective magnet pocket 12.
Nach dem Einsetzen der Magnete 8 in die Magnettaschen 12 kann das Matrixmaterial 15 an den Stirnseiten des Rotorkörpers 3 über Einspritzstellen 19 jeweils in den axialen Kanalabschnitt 16.1 der Verteilerpfade 16 eingespritzt werden. Das Fördern des Matrixmaterials 15 durch die Verteilerpfade 16 über dieAfter the magnets 8 have been inserted into the magnet pockets 12, the matrix material 15 can be injected at the end faces of the rotor body 3 via injection points 19 into the axial channel section 16.1 of the distribution paths 16. The promotion of the matrix material 15 through the distribution paths 16 on the
Magnetaschen 12 zu der Faserwicklung 14 kann durch den Einspritzdruck und/oder durch Rotieren bzw. Schleudern des Rotors 1 erfolgen. Magnetic ashing 12 to the fiber winding 14 can be effected by the injection pressure and/or by rotating the rotor 1 .
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22817249.0A EP4449587A1 (en) | 2021-12-17 | 2022-11-14 | Rotor of an electric machine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021214564.7 | 2021-12-17 | ||
| DE102021214564.7A DE102021214564A1 (en) | 2021-12-17 | 2021-12-17 | Rotor of an electrical machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023110253A1 true WO2023110253A1 (en) | 2023-06-22 |
Family
ID=84370505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2022/081791 Ceased WO2023110253A1 (en) | 2021-12-17 | 2022-11-14 | Rotor of an electric machine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4449587A1 (en) |
| DE (1) | DE102021214564A1 (en) |
| WO (1) | WO2023110253A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024111296A1 (en) * | 2024-04-23 | 2025-10-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Rotor of an electrical machine designed as a permanent magnet synchronous machine, electrical machine and motor vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001157394A (en) * | 1999-11-29 | 2001-06-08 | Mitsubishi Electric Corp | Embedded magnet rotor |
| JP2002034187A (en) * | 2000-07-13 | 2002-01-31 | Mitsubishi Electric Corp | Embedded magnet rotor |
| EP2113986A1 (en) * | 2008-04-29 | 2009-11-04 | Siemens Aktiengesellschaft | Method for encapsulating permanent magnets of a rotor of a generator |
| US20190181709A1 (en) * | 2017-12-08 | 2019-06-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Rotor with cooling |
| US20200266677A1 (en) | 2017-09-29 | 2020-08-20 | Hitachi Automotive Systems, Ltd. | Rotor Core, Rotor of Rotary Electrical Machine, Rotary Electrical Machine, and Automotive Auxiliary Electrical System |
-
2021
- 2021-12-17 DE DE102021214564.7A patent/DE102021214564A1/en active Pending
-
2022
- 2022-11-14 WO PCT/EP2022/081791 patent/WO2023110253A1/en not_active Ceased
- 2022-11-14 EP EP22817249.0A patent/EP4449587A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001157394A (en) * | 1999-11-29 | 2001-06-08 | Mitsubishi Electric Corp | Embedded magnet rotor |
| JP2002034187A (en) * | 2000-07-13 | 2002-01-31 | Mitsubishi Electric Corp | Embedded magnet rotor |
| EP2113986A1 (en) * | 2008-04-29 | 2009-11-04 | Siemens Aktiengesellschaft | Method for encapsulating permanent magnets of a rotor of a generator |
| US20200266677A1 (en) | 2017-09-29 | 2020-08-20 | Hitachi Automotive Systems, Ltd. | Rotor Core, Rotor of Rotary Electrical Machine, Rotary Electrical Machine, and Automotive Auxiliary Electrical System |
| US20190181709A1 (en) * | 2017-12-08 | 2019-06-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Rotor with cooling |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021214564A1 (en) | 2023-06-22 |
| EP4449587A1 (en) | 2024-10-23 |
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