[go: up one dir, main page]

DE3719197A1 - Rotor for electrical machines - Google Patents

Rotor for electrical machines

Info

Publication number
DE3719197A1
DE3719197A1 DE19873719197 DE3719197A DE3719197A1 DE 3719197 A1 DE3719197 A1 DE 3719197A1 DE 19873719197 DE19873719197 DE 19873719197 DE 3719197 A DE3719197 A DE 3719197A DE 3719197 A1 DE3719197 A1 DE 3719197A1
Authority
DE
Germany
Prior art keywords
permanent magnets
bandage
rotor
support body
electrical machines
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Withdrawn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
DE19873719197
Other languages
German (de)
Inventor
Peter Ing Grad Auel
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.)
Thyssen Stahl AG
Original Assignee
Thyssen Edelstahlwerke AG
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
Application filed by Thyssen Edelstahlwerke AG filed Critical Thyssen Edelstahlwerke AG
Priority to DE19873719197 priority Critical patent/DE3719197A1/en
Priority to DE8804992U priority patent/DE8804992U1/en
Publication of DE3719197A1 publication Critical patent/DE3719197A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753Inner 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
    • H02K1/278Surface mounted magnets; Inset magnets
    • H02K1/2781Magnets shaped to vary the mechanical air gap between the magnets and the stator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

Published without abstract.

Description

Die Erfindung betrifft einen Rotor für elektrische Maschinen, bestehend aus einem Tragkörper, auf dessen Außenumfangsfläche mindestens zwei Dauermagnete, paarweise jeweils diametral gegenüberliegend, in Umfangs­ richtung abstandsweise befestigt sind.The invention relates to a rotor for electrical machines from a supporting body, on the outer peripheral surface of which at least two Permanent magnets, in pairs diametrically opposite, in circumference direction are fixed at intervals.

Die Oberflächen der auf dem Tragkörper aufgesetzten und z. B. durch Kleben befestigten Dauermagnete weisen gekrümmte auf einer gemein­ samen rohrförmigen Hüllfläche liegende Oberflächen auf. Um zu vermeiden, daß sich die Dauermagnete oder Teile der Dauermagnete bei den z. T. sehr großen Umdrehungszahlen der Rotoren aufgrund der dabei auftretenden Zentripedalkräfte vom Tragkörper lösen, ist es erforderlich, daß die Dauermagnete gegen dieses unbeabsichtigte Lösen dauerhaft mit dem Tragkörper verbunden werden.The surfaces of the placed on the support body and z. B. by Adhesive-attached permanent magnets have curved on a common surfaces lying on the tubular tubular surface. In order to avoid, that the permanent magnets or parts of the permanent magnets in the z. T. very large rotations of the rotors due to the occurring Loosen centripetal forces from the supporting body, it is necessary that the Permanent magnets against this unintentional loosening permanently with the Support body are connected.

Hierzu wird bei einem Rotor der gattungsgemäßen Art erfindungsgemäß vorgeschlagen, daß die Dauermagnete mittels einer endlosen plastisch oder elastisch verformbaren über ihren Außenumfang gezogenen Bandage, welche dann die Form eines Polygonzugs P geringerer Länge als die des Hüllkreises H der Dauermagnete annimmt, auf dem Tragkörper befestigt sind. Durch die Bandage werden die Dauermagnete auch geschützt.For this purpose, it is proposed according to the invention in a rotor of the generic type that the permanent magnets are fastened to the supporting body by means of an endless plastically or elastically deformable bandage drawn over their outer circumference, which then takes the form of a polygonal path P of less length than that of the enveloping circle H of the permanent magnets . The permanent magnets are also protected by the bandage.

In bevorzugter Ausgestaltung des erfindungsgemäßen Rotors kann der freie Raum zwischen den Magneten unterhalb der Bandage mit Kunststoff ausgefüllt sein.In a preferred embodiment of the rotor according to the invention, the free space between the magnets below the bandage with plastic to be filled out.

Die Bandage kann vorzugsweise aus Aluminium, Edelstahl oder einem anderen Metall oder aber auch aus einem geeigneten elastischen Kunststoff oder Gummi bestehen. Ursprünglich besteht die Bandage aus einem Rohr, dessen Durch­ messer kleiner ist als der der rohrförmigen Hüllfläche, auf der die Oberflächen der Dauermagnete liegen. Beim Aufziehen der rohrförmigen Bandage verformt sich diese unter plastischer Verformung zu dem Polygonzug P, wie er sich im Querschnitt des rohrförmigen Bandagen- Gebildes ergibt. Dabei wechseln in Umfangsrichtung Rohrsegmentabschnitte mit ebenen Flächenabschnitten ab. The bandage can preferably consist of aluminum, stainless steel or another metal or else of a suitable elastic plastic or rubber. The bandage originally consists of a tube whose diameter is smaller than that of the tubular envelope surface on which the surfaces of the permanent magnets lie. When the tubular bandage is pulled on, it deforms with plastic deformation to form the polygon P , as is obtained in the cross section of the tubular bandage structure. Here, pipe segment sections alternate with flat surface sections in the circumferential direction.

In Fig. 1 ist ein Ausführungsbeispiel des erfindungsgemäßen Rotors im Querschnitt dargestellt.In Fig. 1 an embodiment of the rotor according to the invention is shown in cross section.

Auf dem Tragkörper 1 sind zwei verschiedene Magnetsegment-Typen 2 und 2 a dargestellt. Dabei wird immer entweder nur die eine oder die andere Type auf einem Tragkörper 1 angebracht sein. Die Dauermagnete 2, 2 a sind einmal durch Kleben mit dem Tragkörper 1 verbunden. Außerdem ist aber die Bandage 3 in axialer Richtung des Rotors aufgezogen, die im aufge­ zogenen Zustand, im Querschnitt gesehen, die Form des Polygonzugs P annimmt. Im Bereich der Überdeckung der Polfläche der Dauermagnete 2, 2 a ergeben sich runde Abschnitte und zwischen den Dauermagneten gerade bzw. ebene Abschnitte der Bandage 3. Die Länge des Polygonzugs P ist kürzer als der Hüllkreis H, auf dem die Polflächen der Magnete 2, 2 a liegen.On the support body 1 , two different types of magnetic segments 2 and 2 a are shown. Either only one or the other type will always be attached to a support body 1 . The permanent magnets 2, 2 a are connected to the support body 1 once by gluing. In addition, however, the bandage 3 is pulled in the axial direction of the rotor, which, when viewed in cross section, assumes the shape of the polygon P in the drawn-up state. In the area of the overlap of the pole surface of the permanent magnets 2, 2 a there are round sections and between the permanent magnets straight or flat sections of the bandage 3 . The length of the polygon P is shorter than the enveloping circle H on which the pole faces of the magnets 2, 2 a lie.

Der Zwischenraum zwischen den Dauermagneten 2, 2 a in Umfangsrichtung unterhalb der Bandage 3 ist mit Kunststoff 4 ausgefüllt.The space between the permanent magnets 2, 2 a in the circumferential direction below the bandage 3 is filled with plastic 4 .

Claims (3)

1. Rotor für elektrische Maschinen, bestehend aus einem Tragkörper, auf dessen Außenumfangsfläche mindestens zwei Dauermagnete, paarweise jeweils diametral gegenüberliegend in Umfangsrichtung abstandsweise befestigt sind, dadurch gekennzeichnet, daß die Dauermagnete (2, 2 a) mittels einer endlosen verformbaren über ihren Außenumfang gezogenen Bandage (3), welche im Querschnitt gesehen, die Form eines Polygonzugs P geringerer Länge als die des Hüllkreises H der Dauer­ magnete annimmt, auf dem Tragkörper (1) befestigt sind.1. Rotor for electrical machines, consisting of a support body, on the outer circumferential surface of which at least two permanent magnets are attached in pairs, each diametrically opposite in the circumferential direction at a distance, characterized in that the permanent magnets ( 2, 2 a) by means of an endlessly deformable bandage drawn over their outer circumference ( 3 ), which seen in cross section, the shape of a polygon P less length than that of the enveloping circle H of the permanent magnets, are attached to the support body ( 1 ). 2. Rotor nach Anspruch 1, dadurch gekennzeichnet, daß die Bandage (3) aus Metall, insbesondere Aluminium oder Edelstahl, besteht.2. Rotor according to claim 1, characterized in that the bandage ( 3 ) consists of metal, in particular aluminum or stainless steel. 3. Rotor nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Raum zwischen den Dauermagneten (2, 2 a) in Umfangsrichtung unter­ halb der Bandage (3) mit Kunststoff (4) ausgefüllt ist.3. Rotor according to one of claims 1 or 2, characterized in that the space between the permanent magnets ( 2, 2 a) in the circumferential direction under half of the bandage ( 3 ) with plastic ( 4 ) is filled.
DE19873719197 1987-06-09 1987-06-09 Rotor for electrical machines Withdrawn DE3719197A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19873719197 DE3719197A1 (en) 1987-06-09 1987-06-09 Rotor for electrical machines
DE8804992U DE8804992U1 (en) 1987-06-09 1988-04-15 Rotor for electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873719197 DE3719197A1 (en) 1987-06-09 1987-06-09 Rotor for electrical machines

Publications (1)

Publication Number Publication Date
DE3719197A1 true DE3719197A1 (en) 1989-01-05

Family

ID=6329318

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873719197 Withdrawn DE3719197A1 (en) 1987-06-09 1987-06-09 Rotor for electrical machines

Country Status (1)

Country Link
DE (1) DE3719197A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001010001A3 (en) * 1999-08-03 2001-05-17 Siemens Ag Demagnetization-protected permanent magnet ship propulsion system
DE10254286A1 (en) * 2002-11-20 2004-07-08 Miele & Cie. Kg Manufacture of rotor for external-rotor synchronous motor, e.g. for washing machine, involves fixing permanent magnets or magnetizable material in flux guide by casting compound within housing
DE102004042927A1 (en) * 2004-09-02 2006-03-09 Heinz Leiber Rotary electrical machine with permanent magnet excitation, has stator in two axially-adjacent parts forming intermediate gap containing disc rotor components
DE4111411B4 (en) * 1991-04-09 2006-09-14 Papst Licensing Gmbh & Co. Kg Rotor with a protective jacket
DE102007016771A1 (en) * 2007-04-04 2008-10-23 Esw Gmbh Arrangement for mounting magnets on rotors of permanently excited synchronous machines
DE102009043224A1 (en) * 2009-09-28 2011-03-31 Siemens Aktiengesellschaft Electric machine and rotor for an electric machine
DE102013107526A1 (en) 2013-07-16 2015-01-22 Miele & Cie. Kg Rotor for an electric motor and method of manufacturing a rotor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2532049A1 (en) * 1974-07-19 1976-02-05 Cem Comp Electro Mec INDUCTOR FOR A ROTATING ELECTRIC MACHINE WITH SEVERAL MAGNETS
DE8117076U1 (en) * 1981-06-10 1982-11-25 Robert Bosch Gmbh, 7000 Stuttgart ROTOR FOR A PERMANENTLY MAGNETICALLY EXCITED ELECTRICAL MACHINE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2532049A1 (en) * 1974-07-19 1976-02-05 Cem Comp Electro Mec INDUCTOR FOR A ROTATING ELECTRIC MACHINE WITH SEVERAL MAGNETS
DE8117076U1 (en) * 1981-06-10 1982-11-25 Robert Bosch Gmbh, 7000 Stuttgart ROTOR FOR A PERMANENTLY MAGNETICALLY EXCITED ELECTRICAL MACHINE

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111411B4 (en) * 1991-04-09 2006-09-14 Papst Licensing Gmbh & Co. Kg Rotor with a protective jacket
WO2001010001A3 (en) * 1999-08-03 2001-05-17 Siemens Ag Demagnetization-protected permanent magnet ship propulsion system
DE10254286A1 (en) * 2002-11-20 2004-07-08 Miele & Cie. Kg Manufacture of rotor for external-rotor synchronous motor, e.g. for washing machine, involves fixing permanent magnets or magnetizable material in flux guide by casting compound within housing
DE10254286B4 (en) * 2002-11-20 2007-06-28 Miele & Cie. Kg Method for producing a rotor designed as an external rotor for a permanent magnet synchronous motor
DE102004042927A1 (en) * 2004-09-02 2006-03-09 Heinz Leiber Rotary electrical machine with permanent magnet excitation, has stator in two axially-adjacent parts forming intermediate gap containing disc rotor components
DE102007016771A1 (en) * 2007-04-04 2008-10-23 Esw Gmbh Arrangement for mounting magnets on rotors of permanently excited synchronous machines
DE102007016771B4 (en) * 2007-04-04 2009-02-12 Esw Gmbh Arrangement for mounting magnets on rotors of permanently excited synchronous machines
DE102009043224A1 (en) * 2009-09-28 2011-03-31 Siemens Aktiengesellschaft Electric machine and rotor for an electric machine
DE102013107526A1 (en) 2013-07-16 2015-01-22 Miele & Cie. Kg Rotor for an electric motor and method of manufacturing a rotor
EP2840679A2 (en) 2013-07-16 2015-02-25 Miele & Cie. KG Rotor for an electric motor and method for manufacturing a rotor for an electric motor

Similar Documents

Publication Publication Date Title
DE68903632T2 (en) SLIDING BEARING ARRANGEMENT WITH INTERCHANGEABLE SENSOR.
EP0292795A1 (en) Hollow shaft with driving elements affixed by means of expansion and with axially differing material properties
DE3719197A1 (en) Rotor for electrical machines
DE1289696B (en) Loose flange connection for pressure pipes
DE19782293B4 (en) Differential gear and drive pinion assembly
DE673168C (en) Protection against axial separation of the slewing ring of bogies, especially for trailers of motor vehicles
DE3330311C1 (en) Timing belt drive
DE2426952A1 (en) BRAKE DISC FOR DISC BRAKES
DE3322258C1 (en) Clamping device for a grinding ring
DE2225806A1 (en) ROTATING ANODE ARRANGEMENT FOR ROENTGE TUBES
DE2406151B2 (en) HUB CONNECTION BETWEEN A HUB AND A SHAFT
DE8804992U1 (en) Rotor for electrical machines
DE720093C (en) Drive wheel for caterpillar vehicles
DE4341514A1 (en) Rotor laminated yoke with permanent magnets
DE3225192A1 (en) TUBE WRAP HEAD WITH BENDABLE SHAFT
DE587005C (en) Protective coating for bearings
DE364354C (en) Auxiliary device for the storage of flexible shafts in the protective tube, especially dental drills
AT92875B (en) Wire spoke wheel.
DE529331C (en) Device for producing a conductive rail connection
DE3223773A1 (en) ARRANGEMENT FOR FASTENING A RUNNING RING ON THE SHEATH OF A TURNTUBE
AT105400B (en) Power transmission device for locomotives and similar vehicles.
AT100773B (en) Removable wheel for vehicles.
DE1195266B (en) Rotating brush roller for sweeping and cleaning machines
DE976474C (en) Pawbearing design for rail engines equipped with roller bearings
DE1575709C3 (en) Drive wheel for driving an auxiliary device

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8139 Disposal/non-payment of the annual fee