DE102010022702A1 - Rotor for synchronous motor, has permanent magnets slid into parallel pockets and made from punched metal sheets, where magnets are clamped in pockets in force-fit manner by shape of window edges - Google Patents
Rotor for synchronous motor, has permanent magnets slid into parallel pockets and made from punched metal sheets, where magnets are clamped in pockets in force-fit manner by shape of window edges Download PDFInfo
- Publication number
- DE102010022702A1 DE102010022702A1 DE201010022702 DE102010022702A DE102010022702A1 DE 102010022702 A1 DE102010022702 A1 DE 102010022702A1 DE 201010022702 DE201010022702 DE 201010022702 DE 102010022702 A DE102010022702 A DE 102010022702A DE 102010022702 A1 DE102010022702 A1 DE 102010022702A1
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- Germany
- Prior art keywords
- magnets
- pockets
- rotor
- sheets
- projection
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- 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.)
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- 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]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Die Erfindung betrifft einen Rotor eines Synchronmotors mit Permanentmagneten, die in achsparallelen Taschen des aus gestanzten Blechen zusammengesetzten Blockrotors eingeschoben sind und dort fixiert einliegen, wobei in den Blechen Fenster eingestanzt sind, die bei übereinander liegenden Blechen miteinander fluchten, um die achsparallelen Taschen zu bilden.The invention relates to a rotor of a synchronous motor with permanent magnets which are inserted into axially parallel pockets of the composite stamped sheets block rotor and there fixed einliegen, wherein in the sheets windows are punched, which are aligned with one another lying sheets to form the axially parallel pockets.
Bei solchen Blockrotoren ist es bekannt, die Permanentmagnete in den Taschen dadurch zu halten, dass zusätzlich zu den Permanentmagneten in die Taschen Kunststoffstifte geschoben werden, die die Magnete fest klemmen. Dies führt zu einem zusätzlichen Arbeitsgang und es können in eine Tasche immer nur ein Magnet gehalten werden, da nur kurze Stifte einbringbar sind.In such block rotors, it is known to hold the permanent magnets in the pockets in that in addition to the permanent magnets in the pockets plastic pins are pushed firmly clamp the magnets. This leads to an additional operation and it can be kept in a bag always only a magnet, since only short pins can be introduced.
Aufgabe der Erfindung ist es, ein Rotor der eingangs genannten Art so zu verbessern, dass Produktion und Montage vereinfacht sind und zusätzliche Fixierungsteile für die Permanentmagnete nicht benötigt werden. Auch gilt es die Magnete so sicher zuhalten und präzise zu positionieren, dass eine Unwucht nicht entsteht.The object of the invention is to improve a rotor of the type mentioned above so that production and assembly are simplified and additional fixing parts for the permanent magnets are not needed. It is also important to hold the magnets so securely and to position them precisely that an imbalance does not arise.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Magnete durch die Form der Fensterränder kraftschlüssig klemmend in den Taschen gehalten sind.This object is achieved in that the magnets are held by the shape of the window edges frictionally clamped in the pockets.
Eine solche Konstruktion führt zu folgenden Vorteilen:
- – Fixierung, Positionierung und Klemmung erfolgen für einen oder mehrere Magnete in Längsrichtung der Magnettasche auf gleiche, einfache Weise.
- – Es werden keine zusätzlichen Teile für das Fixieren verwendet.
- – Es können eine im Stanzwerkzeug des Rotorpaketes vorhandene Verdrehvorrichtung und/oder ein schaltbarer Stempel genutzt werden, um unterschiedliche Konturen im Bereich der Magnettaschen zu erzeugen.
- – Dieses Fixierungssystem gleicht grobe Toleranzen aus, besitzt eine hohe elastische Reserve, ist daher thermisch sehr stabil und besitzt die Eigenschaft, spröde Werkstoffe zerstörungsfrei aufzunehmen.
- – Die bisher benutzten Fixierungsteile werden nicht mehr benötigt. Dis bedeutet eine Verringerung der Werkzeuginvestitionen, Teilekosten und Prozesskosten. Der Rotor ist durch Reduzierung der Materialvielfalt, hier Eliminierung des Kunststoffes, recyclinggerecht ausgelegt.
- – Durch dieses Positionierungs- und Fixierungssystem lassen sich mehrere Magnete in einer Tasche befestigen.
- – Die Magnete sind so sicher gehalten und präzise positioniert, dass sie sich nicht verschieben können und damit die Unwucht wesentlich reduziert wird.
- - Fixing, positioning and clamping done for one or more magnets in the longitudinal direction of the magnet pocket in the same simple manner.
- - No additional parts are used for fixing.
- - It can be used in the punching tool of the rotor package existing twisting device and / or a switchable punch to produce different contours in the field of magnetic pockets.
- - This fixation system compensates for rough tolerances, has a high elastic reserve, is therefore thermally very stable and has the property to absorb brittle materials non-destructive.
- - The previously used fixation parts are no longer needed. Dis means a reduction in tool investment, parts costs and process costs. The rotor is designed for recycling by reducing the variety of materials, here elimination of the plastic.
- - This positioning and fixing system can be several magnets in a bag fastened.
- - The magnets are held so securely and precisely positioned that they can not move and thus the imbalance is significantly reduced.
Eine besonders vorteilhafte Ausführung ist dann gegeben, wenn zwischen den Blechen Klemmbleche angeordnet sind, die jeweils mindestens einen am Fensterrand vorstehenden, in die Tasche hineinragenden insbesondere zungenförmigen Vorsprung mit beidseitigen Einstichen (hohe Flexibilität) aufweisen, der im Wege des einzuschiebenden Magneten steht, wobei beim Einschieben des Magneten der elastische Vorsprung durch den Magneten gebogen wird (aber noch federnd), um dem Magneten einen klemmenden Halt zu bieten. Hierbei können die Magnete allein durch die Vorsprünge gehalten sein. Ferner kann hierbei zumindest auf der Seite eines Klemmbleches, in deren Richtung sich der Vorsprung beim Einstecken des Magneten verbiegt, ein Blech („Freiblech”) angrenzen, das zumindest im Bereich des Vorsprungs einen Freiraum insbesondere Rücksprung bildet, der den freien Raum für den hineinragenden Vorsprung bildet.A particularly advantageous embodiment is given if between the sheets clamping plates are arranged, each having at least one projecting at the edge of the window, projecting into the bag in particular tongue-shaped projection with two-sided punctures (high flexibility), which is in the way of the magnet to be inserted, wherein the Inserting the magnet, the elastic projection is bent by the magnet (but still resilient), to provide the magnet a clamping grip. Here, the magnets may be held solely by the projections. Furthermore, this can at least on the side of a clamping plate, in the direction of the projection bends when inserting the magnet, a sheet ("free-chip") adjacent, which forms at least in the region of the projection a free space in particular return, the free space for the protruding Projection forms.
Zu einer Ausführung wird vorgeschlagen, dass zu beiden Seiten eines Klemmblechs jeweils mindestens ein Freiblech liegt. Dies hat den Vorteil, dass die Magnete zu beiden Seiten des Blockrotors eingeschoben werden können. Auch können zwischen den Klemmblechen mit in die Tasche hineinragendem Vorsprung oder hineinragenden Vorsprüngen zwei oder mehr Bleche („Normalbleche”) ohne Vorsprung/Vorsprünge liegen.For an embodiment, it is proposed that at least one free sheet is located on each side of a clamping plate. This has the advantage that the magnets can be inserted on both sides of the block rotor. Also can lie between the clamping plates with projecting into the pocket projection or protruding projections two or more sheets ("normal sheets") without projection / projections.
In einer weiteren vorteilhaften Ausführung sind die Magnete blockförmig oder scheibenförmig insbesondere bandförmig, um in entsprechend geformte Taschen eingeschoben zu werden.In a further advantageous embodiment, the magnets are block-shaped or disk-shaped, in particular band-shaped, in order to be inserted into correspondingly shaped pockets.
Weist der Blockrotor eine größere Höhe auf, so wird vorgeschlagen, dass in einer Tasche zwei oder mehr Magnete übereinander und/oder nebeneinander und/oder hintereinander liegen. Alternativ können die Magnete in zwei oder mehr Streifen quer-/längsgeteilt sein und für jeden Magnetstreifen eine entsprechend geformte Tasche im Blockrotor bestehen. Hierbei können die beiden Taschen tangential rechteckig oder V-förmig im Blockrotor angeordnet sein.If the block rotor has a greater height, it is proposed that two or more magnets lie one above the other and / or next to one another and / or behind one another in a pocket. Alternatively, the magnets may be divided transversely / longitudinally into two or more strips, and for each magnetic strip, there may be a correspondingly shaped pocket in the block rotor. Here, the two pockets can be arranged tangentially rectangular or V-shaped in the block rotor.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher beschrieben. Es zeigenAn embodiment of the invention is illustrated in the drawings and will be described in more detail below. Show it
Der Läufer des erfindungsgemäßen Synchronmotors ist von einem Blockrotor
Bei einigen der Bleche bildet der Rand des Fensters
Die Klemmbleche
In dem in
An die Freibleche
Im Ausführungsbeispiel weist jedes Klemmblech
Vorzugsweise bildet ein Klemmblech
Erst nach dem Einschieben der Magnete in den Blockrotor werden diese magnetisiert. Dennoch wird in dieser Patentschrift und in den Ansprüchen stets von Magneten bzw. Permanentmagneten gesprochen, auch wenn diese Teile noch nicht magnetisch sind.Only after the magnets have been pushed into the block rotor are they magnetized. Nevertheless, in this patent and in the claims always spoken of magnets or permanent magnets, even if these parts are not yet magnetic.
In einer Tasche
Die Permanentmagnete können auch in zwei oder mehr Streifen längs aufgeteilt sein, wobei vorzugsweise für jeden Magnetstreifen eine entsprechend geformte Tasche im Blockrotor vorhanden ist.The permanent magnets may also be split longitudinally into two or more strips, preferably with a correspondingly shaped pocket in the block rotor for each magnetic strip.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010022702 DE102010022702A1 (en) | 2010-06-04 | 2010-06-04 | Rotor for synchronous motor, has permanent magnets slid into parallel pockets and made from punched metal sheets, where magnets are clamped in pockets in force-fit manner by shape of window edges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010022702 DE102010022702A1 (en) | 2010-06-04 | 2010-06-04 | Rotor for synchronous motor, has permanent magnets slid into parallel pockets and made from punched metal sheets, where magnets are clamped in pockets in force-fit manner by shape of window edges |
Publications (1)
Publication Number | Publication Date |
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DE102010022702A1 true DE102010022702A1 (en) | 2011-12-08 |
Family
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DE201010022702 Withdrawn DE102010022702A1 (en) | 2010-06-04 | 2010-06-04 | Rotor for synchronous motor, has permanent magnets slid into parallel pockets and made from punched metal sheets, where magnets are clamped in pockets in force-fit manner by shape of window edges |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011122023A1 (en) * | 2011-12-23 | 2013-06-27 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Robot sheet package of an electric motor |
DE102019202426A1 (en) * | 2019-02-22 | 2020-08-27 | Volkswagen Aktiengesellschaft | Laminated core for a rotor of an electrical machine and a method for manufacturing a laminated core |
EP3793064A1 (en) | 2019-09-13 | 2021-03-17 | Metabowerke GmbH | Rotor plate for a rotor of an electric motor, rotor for an electric motor and electric motor |
WO2021219290A1 (en) | 2020-04-30 | 2021-11-04 | Vitesco Technologies GmbH | Magnet mount, rotor, stator and electric motor |
DE102021204845A1 (en) | 2021-05-12 | 2022-11-17 | Zf Friedrichshafen Ag | Disk pack for an electrical machine and method for manufacturing the disk pack |
DE102022206623A1 (en) | 2022-06-29 | 2024-01-04 | Valeo Eautomotive Germany Gmbh | Improved fixation of rotor magnets in a rotor of an electrical machine |
DE102022116139A1 (en) | 2022-06-29 | 2024-01-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Rotor for an electrical machine and method for producing the same |
Citations (10)
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---|---|---|---|---|
US4777397A (en) * | 1986-08-15 | 1988-10-11 | Marathon Electric Manufacturing Corp. | Permanent magnet generator apparatus including a consequent pole rotor |
US5162686A (en) * | 1989-11-27 | 1992-11-10 | Gec Alsthom Sa | Motor rotor having magnets |
US5581140A (en) * | 1992-09-02 | 1996-12-03 | Kabushiki Kaisha Toshiba | Permanent magnetic rotor and producing apparatus of the same |
US20030137203A1 (en) * | 2002-01-23 | 2003-07-24 | Chang Chio Sung | Magnetic material fixing structure of motor rotor |
US6794784B2 (en) * | 2000-05-25 | 2004-09-21 | Kabushiki Kaisha Toshiba | Permanent magnet reluctance motor with embedded permanent magnet holes |
US6911756B1 (en) * | 2004-03-23 | 2005-06-28 | Chio-Sung Chang | Rotor core with magnets on the outer periphery of the core having a sine or trapezoidal wave |
WO2008092748A1 (en) * | 2007-02-01 | 2008-08-07 | Robert Bosch Gmbh | Electrical machine |
US20090045688A1 (en) * | 2007-08-16 | 2009-02-19 | Ford Global Technologies, Llc | Permanent Magnet Machine |
DE102008004225A1 (en) * | 2008-01-14 | 2009-07-16 | Continental Automotive Gmbh | Electric machine |
DE202009007544U1 (en) * | 2009-05-27 | 2010-10-14 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Laminated core, in particular for the rotor of an electric motor |
-
2010
- 2010-06-04 DE DE201010022702 patent/DE102010022702A1/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4777397A (en) * | 1986-08-15 | 1988-10-11 | Marathon Electric Manufacturing Corp. | Permanent magnet generator apparatus including a consequent pole rotor |
US5162686A (en) * | 1989-11-27 | 1992-11-10 | Gec Alsthom Sa | Motor rotor having magnets |
US5581140A (en) * | 1992-09-02 | 1996-12-03 | Kabushiki Kaisha Toshiba | Permanent magnetic rotor and producing apparatus of the same |
US6794784B2 (en) * | 2000-05-25 | 2004-09-21 | Kabushiki Kaisha Toshiba | Permanent magnet reluctance motor with embedded permanent magnet holes |
US20030137203A1 (en) * | 2002-01-23 | 2003-07-24 | Chang Chio Sung | Magnetic material fixing structure of motor rotor |
US6911756B1 (en) * | 2004-03-23 | 2005-06-28 | Chio-Sung Chang | Rotor core with magnets on the outer periphery of the core having a sine or trapezoidal wave |
WO2008092748A1 (en) * | 2007-02-01 | 2008-08-07 | Robert Bosch Gmbh | Electrical machine |
US20090045688A1 (en) * | 2007-08-16 | 2009-02-19 | Ford Global Technologies, Llc | Permanent Magnet Machine |
DE102008004225A1 (en) * | 2008-01-14 | 2009-07-16 | Continental Automotive Gmbh | Electric machine |
DE202009007544U1 (en) * | 2009-05-27 | 2010-10-14 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Laminated core, in particular for the rotor of an electric motor |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011122023A1 (en) * | 2011-12-23 | 2013-06-27 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Robot sheet package of an electric motor |
US9306422B2 (en) | 2011-12-23 | 2016-04-05 | Brose Fahrzeugteile Gmbh & Co. Kg, Wuerzburg | Rotor blade set of an electric motor |
DE102019202426A1 (en) * | 2019-02-22 | 2020-08-27 | Volkswagen Aktiengesellschaft | Laminated core for a rotor of an electrical machine and a method for manufacturing a laminated core |
EP3793064A1 (en) | 2019-09-13 | 2021-03-17 | Metabowerke GmbH | Rotor plate for a rotor of an electric motor, rotor for an electric motor and electric motor |
WO2021219290A1 (en) | 2020-04-30 | 2021-11-04 | Vitesco Technologies GmbH | Magnet mount, rotor, stator and electric motor |
DE102020205513A1 (en) | 2020-04-30 | 2021-11-04 | Vitesco Technologies GmbH | Magnet holder, rotor, stator and electric motor |
DE102021204845A1 (en) | 2021-05-12 | 2022-11-17 | Zf Friedrichshafen Ag | Disk pack for an electrical machine and method for manufacturing the disk pack |
DE102022206623A1 (en) | 2022-06-29 | 2024-01-04 | Valeo Eautomotive Germany Gmbh | Improved fixation of rotor magnets in a rotor of an electrical machine |
DE102022116139A1 (en) | 2022-06-29 | 2024-01-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Rotor for an electrical machine and method for producing the same |
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