DE4447880B4 - Radial magnetic motor - Google Patents
Radial magnetic motor Download PDFInfo
- Publication number
- DE4447880B4 DE4447880B4 DE4447880A DE4447880A DE4447880B4 DE 4447880 B4 DE4447880 B4 DE 4447880B4 DE 4447880 A DE4447880 A DE 4447880A DE 4447880 A DE4447880 A DE 4447880A DE 4447880 B4 DE4447880 B4 DE 4447880B4
- Authority
- DE
- Germany
- Prior art keywords
- sections
- rotor
- permanent magnet
- electric motor
- pole
- 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.)
- Expired - Fee Related
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
- H02K1/27—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
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
-
- 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
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Bei einem Elektromotor, der einen Stator und einen Rotor aufweist, wobei der Rotor auf einer Welle angeordnet ist und aus Polabschnitten und Magnetabschnitten aufgebaut ist, die abwechselnd um die Längsachse der Weller herum angeordnet sind, ergibt sich eine Vermeidung thermischer Spannungen zwischen Rotorwelle, Blechen und Magneten dadurch, dass Stützbleche mit heraus gebogenen federnden Laschen, die unter die Permanentmagnetabschnitte greifen, vorgesehen sind.In an electric motor having a stator and a rotor, wherein the rotor is arranged on a shaft and is composed of pole sections and magnet sections, which are arranged alternately around the longitudinal axis of the Weller, results in avoiding thermal stresses between the rotor shaft, plates and Magnets in that support plates are provided with bent out resilient tabs which engage under the permanent magnet sections.
Description
Die Erfindung betrifft einen Elektromotor gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to an electric motor according to the preamble of the claim 1.
Heutzutage gibt es eine große Anzahl verschiedener Typen von Elektromotoren, insbesondere mit einem aus Permanentmagneten aufgebauten Rotor. Da aufgrund der Zentrifugalkaft der Rotor eines solchen Elektromotors bei hohen Drehzahlen großen mechanischen Belastungen ausgesetzt ist, ist die Anordnung und Fixierung von den den Rotor bildenden Polsegmenten bzw. Magnetabschnitten untereinander und/oder auf der Welle sehr wichtig. Auch im Hinblick auf die bei hohen Drehzahlen auftretende Erwärmung des Elektromotors, die eine thermische Ausdehnung zur Folge hat, ist die Stabilität des Rotors bzw. der Verbindungen seiner Komponenten ein wichtiger Gesichtspunkt für die Konstruktion.nowadays there is a big one Number of different types of electric motors, in particular with a rotor constructed of permanent magnets. Because of the centrifugal juice the rotor of such an electric motor at high speeds large mechanical Is exposed to the arrangement and fixation of the rotor forming pole segments or magnet sections with each other and / or very important on the wave. Also in terms of at high speeds occurring heating of the electric motor resulting in thermal expansion is the stability the rotor or the compounds of its components an important Point of view for the construction.
Die
Ausgehend
von der
Die gestellte Aufgabe wird gemäß den Merkmales des Anspruches 1 gelöst, da die Verwendung von erfindungsgemäßen Stützblechen mit federnden Laschen die für eine Kompensation thermischer Spannungen erforderliche Flexibilität der Anordnung gewährleistet. Der Rotor kann vor dem Einbau in den Motor und nach der Montage magnetisiert werden. Der Rotor wird außerdem auf einfache Weise zum Zwecke der Magnetisierung und/oder der Montage der Welle fixiert und ist im eingebauten Zustand stabiler.The Asked task is according to the feature of claim 1, since the use of support plates according to the invention with resilient tabs the for ensures a compensation of thermal stresses required flexibility of the arrangement. The rotor can be installed in the engine and after installation be magnetized. The rotor also becomes a simple way to the purpose the magnetization and / or the mounting of the shaft is fixed and is more stable when installed.
Vorteilhafterweise sind in einer Ausführungsform der Erfindung mehrere Stufen im Rotor vorgesehen, wobei mehrere Rotorstufen entlang der Längsachse der Welle um diese herum angeordnet sind und an den jeweiligen Stirnseiten der Rotorstufen Stützbleche vorgesehen sind. Durch die Mehrstufigkeit zusammen mit der Fixierung der Stützbleche an den jeweiligen Stirnseiten der Rotorstufen wird der Drehmomentübertrag vergrößert und gleichzeitig die Stabilität des Rotors gegen Fliehkräfte bzw. aufgrund von Temperaturänderung bei großen Drehzahlen erhöht.advantageously, are in one embodiment the invention provides several stages in the rotor, wherein a plurality Rotor stages along the longitudinal axis the shaft are arranged around this and at the respective end faces the rotor stages support plates are provided. Due to the multistage together with the fixation the support plates at the respective end faces of the rotor stages of the torque transfer enlarged and at the same time the stability of the rotor against centrifugal forces or due to temperature change at big Speeds increased.
In einem bevorzugten Ausführungsbeispiel der Erfindung fixieren die Stützbleche die Pol- und Magnetabschnitte durch eine Federwirkung der Stützbleche, welche die Permanentmagnetabschnitte nach außen gegen die äußeren Anschläge drücken. Bei der weiter oben bereits beschriebenen Anordnung von Polsegmenten und quaderförmigen Magnetabschnitten ermöglicht die Federwirkung allein bereits einen stabilen Zusammenhalt des vorgefertigten, unmagnetisierten Rotors.In a preferred embodiment of Invention fix the support plates the pole and magnet sections by a spring action of the support plates, which push the permanent magnet sections outwards against the outer stops. at the arrangement of pole segments already described above and cuboid Magnet sections allows the spring effect alone already a stable cohesion of prefabricated, unmagnetized rotor.
Der Einfachheit halber kann in einem bevorzugten Ausführungsbeispiel der Erfindung die Federwirkung durch eine Umlegestelle am Stützblech realisiert werden. Dadurch wird der erwünschte Effekt mit einfachen und kostengünstigen Mitteln erzielt.Of the For the sake of simplicity, in a preferred embodiment the invention, the spring action by a transfer point on the support plate will be realized. This will make the desired effect simple and cost-effective Means achieved.
Um auf die Fixierung des Rotors durch Befestigungsstäbe nicht zu verzichten, sind in einem bevorzugten Ausführungsbeispiel der Erfindung Löcher in den Stützblechen vorgesehen, durch die die Befestigungsstäbe zur Fixierung des Rotors durchgeschoben werden.Around not on the fixation of the rotor by mounting rods to dispense, in a preferred embodiment of the invention Holes in the support plates provided by the fixing rods for fixing the rotor be pushed through.
Weitere Ausgestaltungsformen der Erfindung können den abhängigen Ansprüchen entnommen werden.Further Embodiments of the invention can be taken from the dependent claims become.
Die Erfindung sowie weitere Ausgestaltungen und Vorteile derselben wird bzw. werden zusätzlich nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Figuren erläutert. Es zeigen:The Invention as well as further embodiments and advantages thereof or in addition below with reference to embodiments below Explained referring to the figures. Show it:
In
den
Die
Welle
Der
auf der Welle
Wie
man in
Im
zusammengebauten Zustand wird, wie in
Wie
man in
Der
Rotor
Der
Rotor
In
den
Erfindungsgemäß sind die
in den Polsegmenten
Wie
bereits erwähnt,
sind an den beiden Stirnseiten der Magnete bzw. der Magnetabschnitte die
Stützbleche
Erfindungsgemäß erfolgt
die Befestigung des Rotors
Um
die Festigkeit der Konusverbindung zu erhöhen, kann zwischen dem Konus
Erfindungsgemäß werden
wie schon erwähnt
die Magnetabschnitte oder Magnetsegmente gleichzeitig von „außen" und von „innen" magnetisiert, und
zwar „ohne
eingebaute Welle
Abschließend sei
noch bemerkt, dass die Endscheiben
Die Erfindung wurde anhand bevorzugter Ausführungsbeispiele erläutert. Dem Fachmann sind jedoch zahlreiche Abwandlungen bzw. Ausgestaltungen möglich, ohne dass der Erfindungsgedanke dadurch verlassen wird.The The invention has been explained with reference to preferred embodiments. the However, those skilled in the art are numerous modifications possible, without departing from the inventive concept.
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944423840 DE4423840A1 (en) | 1994-07-07 | 1994-07-07 | Radial magnet electromotor design |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4447880B4 true DE4447880B4 (en) | 2007-09-20 |
Family
ID=6522479
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4447880A Expired - Fee Related DE4447880B4 (en) | 1994-07-07 | 1994-07-07 | Radial magnetic motor |
DE19944423840 Withdrawn DE4423840A1 (en) | 1994-07-07 | 1994-07-07 | Radial magnet electromotor design |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19944423840 Withdrawn DE4423840A1 (en) | 1994-07-07 | 1994-07-07 | Radial magnet electromotor design |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE4447880B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007039186A1 (en) * | 2007-08-20 | 2009-02-26 | Siemens Ag | Runner of a traction motor |
DE102012210471A1 (en) | 2012-06-21 | 2013-12-24 | Robert Bosch Gmbh | Spring claw for radial and axial fixation of rotationally symmetric elements, designs contour of spring element such that spring element expands upon application of force to actuating portion in predetermined shape |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004046440B4 (en) * | 2004-09-24 | 2018-05-24 | Siemens Aktiengesellschaft | Rotor with clamping device |
DE202005005936U1 (en) * | 2005-04-13 | 2006-04-13 | Minebea Co., Ltd., Kitasaku | Rotor arrangement for electrical machine, especially brushless d.c. motor, has shaft coaxially attached to magnet support, attachment arrangements that fix support to shaft with air gap between support and shaft |
DE102006056873A1 (en) | 2006-12-01 | 2008-06-05 | Siemens Ag | Permanent magnet rotor with bends for fixing the permanent magnets of the rotor package |
DE102007001829A1 (en) * | 2007-01-12 | 2008-07-17 | Siemens Ag | Rotor core assembly for use in e.g. electrical transmission, has free bearings or boreholes and rotor plates held between end pieces with fastening units, which are guided by bearings under precise fitting meshing of blind holes and pins |
DE102007012076A1 (en) * | 2007-03-13 | 2008-09-25 | Siemens Ag | Runner and electric motor |
CN102377257B (en) * | 2010-08-10 | 2016-03-30 | 德昌电机(深圳)有限公司 | Brushless electric machine |
DE202010017376U1 (en) * | 2010-08-16 | 2014-01-08 | Robert Bosch Gmbh | Attaching magnets to a rotor |
DE102010039334A1 (en) * | 2010-08-16 | 2012-02-16 | Robert Bosch Gmbh | Attaching magnets to a rotor |
ITTO20110142A1 (en) * | 2011-02-18 | 2012-08-19 | Embraco Europ Srl | ELECTRIC MOTOR STATOR AND ITS PRODUCTION PROCEDURE |
JP5324673B2 (en) * | 2012-01-20 | 2013-10-23 | ファナック株式会社 | Motor rotor having split core and method of manufacturing the same |
FR3002091B1 (en) | 2013-02-14 | 2016-07-15 | Moteurs Leroy-Somer | ROTATING ELECTRIC MACHINE. |
JP6083467B2 (en) | 2013-04-01 | 2017-02-22 | 富士電機株式会社 | Permanent magnet embedded rotary electric machine |
FR3008252B1 (en) * | 2013-07-04 | 2015-08-07 | Valeo Equip Electr Moteur | PERMANENT MAGNET ROTOR BODY AND ROTATING ELECTRIC MACHINE COMPRISING SUCH A BODY |
FR3008251B1 (en) * | 2013-07-04 | 2016-12-30 | Valeo Equip Electr Moteur | PERMANENT MAGNET ROTOR BODY AND TOUNANTE ELECTRIC MACHINE COMPRISING SUCH A BODY |
DE102016215701A1 (en) * | 2016-08-22 | 2018-02-22 | Thyssenkrupp Ag | Rotor of an electric machine and method of assembling the rotor |
DE102018204692A1 (en) * | 2018-03-27 | 2019-10-02 | Volkswagen Aktiengesellschaft | Rotor-rotor shaft arrangement with cohesive connection |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0431514A1 (en) * | 1989-12-08 | 1991-06-12 | Gec Alsthom Sa | Motor with magnets of the flux concentration type |
EP0582721A1 (en) * | 1992-02-28 | 1994-02-16 | Fanuc Ltd. | Rotor of synchronous motor |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE171537C (en) * | ||||
US2421115A (en) * | 1943-02-05 | 1947-05-27 | Frank L Lindstrom | Method of securing laminations on a rotor shaft |
DE891410C (en) * | 1943-06-22 | 1953-09-28 | Siemens Ag | Attachment of runner packages for electrical machines on shafts |
SU1077015A1 (en) * | 1982-12-07 | 1984-02-29 | Всесоюзный Научно-Исследовательский Институт Электромашиностроения | Rotor or electric machine |
SU1758785A1 (en) * | 1990-02-19 | 1992-08-30 | Московский агрегатный завод "Дзержинец" | Rotor of electric machine |
DE4107602A1 (en) * | 1991-03-09 | 1992-09-10 | Bosch Gmbh Robert | Permanent magnet rotor for electrical machine operating fuel pump - has several shell-shaped permanent magnet segments which touch each other in peripheral direction and are non-rotatably fixed to bearer cylinder |
DE4139843C2 (en) * | 1991-12-03 | 1998-12-24 | Albert Mutter | Electrical machine and its application for vehicle operation |
JPH05344668A (en) * | 1992-06-08 | 1993-12-24 | Fanuc Ltd | Rotor of synchronous motor |
-
1994
- 1994-07-07 DE DE4447880A patent/DE4447880B4/en not_active Expired - Fee Related
- 1994-07-07 DE DE19944423840 patent/DE4423840A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0431514A1 (en) * | 1989-12-08 | 1991-06-12 | Gec Alsthom Sa | Motor with magnets of the flux concentration type |
EP0582721A1 (en) * | 1992-02-28 | 1994-02-16 | Fanuc Ltd. | Rotor of synchronous motor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007039186A1 (en) * | 2007-08-20 | 2009-02-26 | Siemens Ag | Runner of a traction motor |
DE102012210471A1 (en) | 2012-06-21 | 2013-12-24 | Robert Bosch Gmbh | Spring claw for radial and axial fixation of rotationally symmetric elements, designs contour of spring element such that spring element expands upon application of force to actuating portion in predetermined shape |
DE102012210471B4 (en) * | 2012-06-21 | 2014-12-04 | Robert Bosch Gmbh | Spring claw for radial and axial fixation of rotationally symmetrical elements |
Also Published As
Publication number | Publication date |
---|---|
DE4423840A1 (en) | 1996-01-18 |
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8170 | Reinstatement of the former position | ||
AC | Divided out of |
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