DE888283C - Runner with pole pieces made of material with high magnetic permeability, arranged on the jacket of a cylinder made of permanent magnet material - Google Patents

Runner with pole pieces made of material with high magnetic permeability, arranged on the jacket of a cylinder made of permanent magnet material

Info

Publication number
DE888283C
DE888283C DES4331D DES0004331D DE888283C DE 888283 C DE888283 C DE 888283C DE S4331 D DES4331 D DE S4331D DE S0004331 D DES0004331 D DE S0004331D DE 888283 C DE888283 C DE 888283C
Authority
DE
Germany
Prior art keywords
permanent magnet
ring
runner
pole pieces
cylinder
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
Application number
DES4331D
Other languages
German (de)
Inventor
Josef Tittel
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DES4331D priority Critical patent/DE888283C/en
Application granted granted Critical
Publication of DE888283C publication Critical patent/DE888283C/en
Expired 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
    • H02K1/27—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
    • H02K1/278—Surface mounted magnets; Inset 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
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H02K1/2733—Annular magnets

Description

Die Erfindung betrifft Dauermagnetläufer von insbesondere mit Hauptmaschinen ,auf gleicher Welle sitzenden Synchronmaschinen. Bei bekannten Läufern dieser Art werden am Mantel eines Zylinders aus. Dauermagnetstoff Polschuhe aus Werkstoff von hohem magnetischem Durchlässigkeitsvermögen durch nichtmagnetisierbare Ringe festgehalten, dieden Zylinder umgeben und mit den Polschuhen vernietet sind. Die in axialer Richtung neben den Polschuhen angeordneten Ringe können hierbei aus Platzgründen nur geringen Querschnitt besitzen, so daß die Festigkeit der Ausführung, insbesondere bei hohen Umfangsgeschwindigkeiten, unzureichend ist.The invention relates to permanent magnet rotors, particularly those with main machines , synchronous machines sitting on the same shaft. In known runners of this type are made on the jacket of a cylinder. Permanent magnet pole pieces made of material from high magnetic permeability held by non-magnetizable rings, which surround the cylinder and are riveted to the pole pieces. The one in the axial direction Rings arranged next to the pole pieces can only be small for reasons of space Have cross-section, so that the strength of the execution, especially at high Peripheral speeds, is inadequate.

Dieser Nachteil wird erfindungsgemäß dadurch vermieden, daß die Polschuhe mit Zwischenstücken aus nichtmagnetisierbarem Werkstoff zu einem. Ring zusammengeschweißt werden, der auf den Zylinder aus D.auermagnetstoff aufgeschrumpft ist. Auf diese Weise werden nicht nur die Polschuhe sicher festgehalten, sondern darüber hinaus der spröde und daher mechanisch schwache Werkstoff des Zylinders fest zusammengehalten.-Ein Ausführungsbeispiel der Erfindung ist in Fig. i und 2 der Zeichnung dargestellt, die den Läufer einer Synchronmaschine zeigen, der aus einem auf der Welle 2 sitzenden Zylinder i aus Dauermagnetstoff besteht, der entsprechend der erforderlichen Polzahl, z. B. vom Stände `aus; polarisiert ist. An den 'magnetischen Polen. des Zylinders i sind Polschuhe 3 aus Werkstoff von hohem Durchlässigkeitsvermögen angeordnet, die nach.der_. Erfindung mit Zwischenstücken 7 aus nichtmagnetisierbaremStoff zu einem Ring zusammengeschweißt sind. Dieser Ring ist auf dem Zylinder i aufgeschrumpft. Außerdem sind zu beiden Seiten- des Zylinders i noch Druckplatten 8 vorgesehen, die miteinander und mit dem Zylinder durch Bolzen 9 verbunden sind und -dazu dienen, den mechanisch schwachen Stoff des Zylinders zusammenzuhalten. Die als Ringe ausgebildeten Druckplatten werden hierbei auch von den-.aufgeschrumpften Ringen umgeben, so daß- der. spröde und daher mechanisch schwache Zylinder i von allen Seiten sicher eingeschlossen ist und die Platten 8 außerdem gut festgehalten werden.This disadvantage is avoided according to the invention in that the pole shoes with spacers made of non-magnetizable material to one. Ring welded together which is shrunk onto the permanent magnet cylinder. To this In this way, not only are the pole pieces securely held, but also beyond that the brittle and therefore mechanically weak material of the cylinder firmly held together.-A Embodiment of the invention is shown in Fig. I and 2 of the drawing, which show the rotor of a synchronous machine, the one sitting on the shaft 2 Cylinder i consists of permanent magnet material, which corresponds to the required number of poles, z. B. from the stand `; is polarized. At the 'magnetic poles. of the cylinder i pole shoes 3 made of material of high permeability are arranged, the after.the_. Invention with intermediate pieces 7 made of non-magnetizable material are welded together in a ring. This ring is shrunk onto the cylinder i. In addition, pressure plates 8 are also provided on both sides of the cylinder i, which are connected to each other and to the cylinder by bolts 9 and serve to to hold together the mechanically weak material of the cylinder. Those trained as rings Printing plates are also surrounded by the shrink-on rings so that the. brittle and therefore mechanically weak cylinders i securely enclosed on all sides is and the plates 8 are also firmly held.

Eine ähnliche Befestigung der Polschuhe zeigen die Fig. 3 und q.. Auf einer magnetisierbaren Stahl-Buchse io sitzen sektorförmige Polstücke i i aus Dauermagnetstoff, die, wie gestrichelt angedeutet, auch unterteilt sein können, wodurch die Ausführung -billiger. wird. In den Pollücken zwischen diesen Stücken i i liegen sektorförmige Füllstücke 12 aus unmagnetisierbarem Stoff. Auf den durch die Sektoren gebildeten Zylinder ist ein Ring aufgeschrumpft, der aus vier zusammengeschweißten Sektoren besteht. Die zwei Ringsektoren 3, die über den Polen liegen, bestehen aus magnetisierbarem Stoff, die beiden anderen über den Pollücken liegenden Ringsektoren 7 aus nichtmagnetisierbarem Stoff. Alle inneren Sektorstücke i i und 12 werden durch seitliche Druckringe 8 und Bolzen 9 aus nichtmagnefisierbarem Stoff in axialer Richtung zusammengehalten.A similar fastening of the pole shoes is shown in FIGS. 3 and q .. Sector-shaped pole pieces i i sit on a magnetizable steel socket io Permanent magnet material, which, as indicated by dashed lines, can also be subdivided, making the execution cheaper. will. In the pole gaps between these pieces i i are sector-shaped filler pieces 12 made of non-magnetizable material. On the through The cylinder formed by sectors is shrunk into a ring made up of four welded together Sectors. The two ring sectors 3, which lie over the poles, consist of magnetizable material, the other two ring sectors above the pole gaps 7 made of non-magnetizable material. All inner sector pieces i i and 12 are through Lateral pressure rings 8 and bolts 9 made of non-magnetizable material in the axial direction held together.

Claims (3)

PATENTANSPRüCHE: i. Läufer von insbesondere mit Hauptmaschinen auf gleicher Welle sitzenden Synchronmaschinen mit am Mantel eines Zylinders aus Dauermagnetstoff angeordneten Polschuhen aus Werkstoff von hohem magnetischem Durchlässigkeitsvermögen, dadurch gekennzeichnet, daß die Polschuhe mit Zwischenstücken aus nichtmagnetisierliaremWerkstoff zu einem Ring -zusammengeschweißt sind, der auf den Zylinder aus Dauermagnetstoff aufgeschrumpft ist. PATENT CLAIMS: i. Runners from in particular with main engines Synchronous machines seated on the same shaft with on the jacket of a cylinder made of permanent magnet material arranged pole pieces made of material with high magnetic permeability, characterized in that the pole shoes with spacers made of non-magnetizable material are welded together to form a ring, which is attached to the cylinder made of permanent magnet material has shrunk. 2. Läufer nach Anspruch i, dadurch gekennzeichnet, daß er aus Sektoren aus Dauermagnetstoff und nichtmagnetisierbarem Stoff zusammengesetzt ist, die auf einer Buchse aus magnetisierbarem Stoff sitzen und durch einen Außenring zusammengehalten werden, der aus über den Sektoren aus Dauermagnets:toff liegenden Ringsektoren aus magnetisierbarem Stoff und zwischen diesen angeordneten Ringsektoren aus nichtmagnetisierbarem Stoff besteht. 2. Runner according to claim i, characterized in that it consists of Sectors is composed of permanent magnet and non-magnetizable material, which sit on a sleeve made of magnetizable material and through an outer ring are held together, the from lying over the sectors of permanent magnets: toff Ring sectors made of magnetizable material and ring sectors arranged between them consists of non-magnetizable material. 3. Läufer nach Anspruch i oder 2, mit zu beiden Seiten. des Läufers angeordneten, z. B. durch Bolzen zusarnmengehaltenenDruckplatten, dadurch gekennzeichnet, daß der aus Polschuhen und Zwischenstücken bestehende Ring --auch die als Ringe ausgebildeten Druckplatten von außen umgibt.3. Runner according to claim i or 2, with too both sides. the runner arranged, z. B. pressure plates held together by bolts, characterized in that the ring consisting of pole pieces and intermediate pieces - also surrounds the pressure plates designed as rings from the outside.
DES4331D 1939-02-11 1939-02-11 Runner with pole pieces made of material with high magnetic permeability, arranged on the jacket of a cylinder made of permanent magnet material Expired DE888283C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES4331D DE888283C (en) 1939-02-11 1939-02-11 Runner with pole pieces made of material with high magnetic permeability, arranged on the jacket of a cylinder made of permanent magnet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES4331D DE888283C (en) 1939-02-11 1939-02-11 Runner with pole pieces made of material with high magnetic permeability, arranged on the jacket of a cylinder made of permanent magnet material

Publications (1)

Publication Number Publication Date
DE888283C true DE888283C (en) 1953-08-31

Family

ID=7470636

Family Applications (1)

Application Number Title Priority Date Filing Date
DES4331D Expired DE888283C (en) 1939-02-11 1939-02-11 Runner with pole pieces made of material with high magnetic permeability, arranged on the jacket of a cylinder made of permanent magnet material

Country Status (1)

Country Link
DE (1) DE888283C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527981A1 (en) * 1995-07-31 1997-02-06 Aeg Kleinmotoren Gmbh Electronically commutated electric motor, such as switched reluctance (SR) drive motor for motor vehicles, washing machines, lawn mowers etc - has magnetic field sensitive element for each phase of motor arranged at small distance from pole wheels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527981A1 (en) * 1995-07-31 1997-02-06 Aeg Kleinmotoren Gmbh Electronically commutated electric motor, such as switched reluctance (SR) drive motor for motor vehicles, washing machines, lawn mowers etc - has magnetic field sensitive element for each phase of motor arranged at small distance from pole wheels

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