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1. WO2012084590 - RADIAL MAGNETIC BEARING FOR THE MAGNETIC BEARING OF A ROTOR

Publication Number WO/2012/084590
Publication Date 28.06.2012
International Application No. PCT/EP2011/072527
International Filing Date 13.12.2011
Chapter 2 Demand Filed 23.10.2012
IPC
F16C 32/04 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
32Bearings not otherwise provided for
04using magnetic or electric supporting means
H02K 3/493 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
3Details of windings
46Fastening of windings on the stator or rotor structure
48in slots
487Slot-closing devices
493magnetic
CPC
F16C 32/0461
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
32Bearings not otherwise provided for
04using magnetic or electric supporting means
0406Magnetic bearings
044Active magnetic bearings
0459Details of the magnetic circuit
0461of stationary parts of the magnetic circuit
F16C 32/048
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
32Bearings not otherwise provided for
04using magnetic or electric supporting means
0406Magnetic bearings
044Active magnetic bearings
0474for rotary movement
048with active support of two degrees of freedom, e.g. radial magnetic bearings
H02K 3/493
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
3Details of windings
46Fastening of windings on the stator or rotor structure
48in slots
487Slot-closing devices
493magnetic
H02K 7/09
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
08Structural association with bearings
09with magnetic bearings
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE] (AllExceptUS)
  • DEITS, Robin [US]/[US] (UsOnly)
  • LANG, Matthias [DE]/[DE] (UsOnly)
Inventors
  • DEITS, Robin
  • LANG, Matthias
Common Representative
  • SIEMENS AKTIENGESELLSCHAFT
Priority Data
102010064067.023.12.2010DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) RADIALMAGNETLAGER ZUR MAGNETISCHEN LAGERUNG EINES ROTORS
(EN) RADIAL MAGNETIC BEARING FOR THE MAGNETIC BEARING OF A ROTOR
(FR) PALIER RADIAL MAGNÉTIQUE POUR LE MONTAGE SUR PALIER MAGNÉTIQUE D'UN ROTOR
Abstract
(DE) Die Erfindung betrifft ein Radialmagnetlager zur magnetischen Lagerung eines Rotors (5), wobei das Radialmagnetlager (1 ',1 ' ', 1 ' ' ' ) einen Stator (2) aufweist, wobei der Stator (2) ein magnetisch leitendes um den Rotor (5) umlaufend angeordnetes Statorelement (4) aufweist, wobei das Statorelement (4) in axiale Richtung (X) des Statorelements (4) verlaufende Ausnehmungen (10) aufweist in denen elektrische Leitungen (8a, 9a) von Spulen (8, 9) angeordnet sind, wobei von den Spulen (8, 9) Magnetfelder erzeugbar sind, die den Rotor (5) in einem zwischen Rotor (5) und Stator (2) angeordneten Luftspalt (7) in Schwebe halten, wobei durch konstruktive Maßnahmen an den Übergängen von einem Magnetpol zum nächsten Magnetpol ein weicherer Verlauf der in radialer Richtung verlaufenden Komponente der Magnetflussdichte erreicht wird, was eine Reduzierung der im Rotor (5) induzierten Wirbelströme zur Folge hat.
(EN) The invention relates to a radial magnetic bearing for magnetic bearing of a rotor (5), wherein the radial magnetic bearing (1 ',1 ' ', 1 ' ' ' ) has a stator (2), wherein the stator (2) has a magnetically conductive stator element (4), arranged circulating around the rotor (5), wherein the stator element (4) has recesses (10) running in the axial direction (X) of the stator element (4) in which electrical lines (8a, 9a) from coils (8, 9) are arranged, wherein magnetic fields can be generated by the coils (8, 9) which hold the rotor (5) suspended in an air gap (7) arranged between the rotor (5) and stator (2), wherein a softer progression of the components of magnetic flow density in the radial direction is achieved by design measures on the transitions from one magnetic pole to the next magnetic pole, which results in a reduction of the eddy currents induced in the rotor (5).
(FR) L'invention porte sur un palier magnétique radial pour le montage sur palier magnétique d'un rotor (5) dans lequel le palier magnétique radial (1', 1", 1'") présente un stator (2), le stator (2) présentant un élément de stator (4) conducteur du magnétisme disposé circonférentiellement autour du rotor (5), l'élément de stator (4) présentant des évidements (10) qui s'étendent dans la direction axiale (X) de l'élément de stator (4) et dans lesquels sont disposés des conducteurs électriques (8a, 9a) de bobines (8, 9), les bobines (8, 9), pouvant produire des champs magnétiques qui maintiennent le rotor (5) dans un état flottant dans un entrefer (7) formé entre le rotor (5) et le stator (2). Par des dispositions constructives aux transitions d'un pôle magnétique au pôle magnétique suivant, on obtient un profil plus doux pour la composante de la densité de flux magnétique orientée dans la direction radiale, ce qui a pour effet une réduction des courants de Foucault induits dans le rotor (5).
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