WO2016041554A1 - Stator feuilleté pour palier magnétique axial - Google Patents

Stator feuilleté pour palier magnétique axial Download PDF

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Publication number
WO2016041554A1
WO2016041554A1 PCT/DE2015/200430 DE2015200430W WO2016041554A1 WO 2016041554 A1 WO2016041554 A1 WO 2016041554A1 DE 2015200430 W DE2015200430 W DE 2015200430W WO 2016041554 A1 WO2016041554 A1 WO 2016041554A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
electrical
sheets
sheet thickness
sheet
Prior art date
Application number
PCT/DE2015/200430
Other languages
German (de)
English (en)
Inventor
Markus Winkler
Matthias Sperber
Marco Frank
Heiko Kernwein
Thomas Schneider
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2016041554A1 publication Critical patent/WO2016041554A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0459—Details of the magnetic circuit
    • F16C32/0461—Details of the magnetic circuit of stationary parts of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0474—Active magnetic bearings for rotary movement
    • F16C32/0476—Active magnetic bearings for rotary movement with active support of one degree of freedom, e.g. axial magnetic bearings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • Active Axiaimagnetlager consist of two stators, which as annular
  • Electromagnets are executed Between the electromagnets, a disc of soft magnetic material is arranged, which is fixedly connected to the shaft axially to be stored. Both electromagnets close with the disk one each
  • the disk By suitable control of the electromagnets, the disk can be held at a defined axial position between the electromagnets. In this way, the shaft can be axially supported without contact.
  • the stators usually consisted of a stator core of soft magnetic solid material. in the groove an annular coil is introduced.
  • a disadvantage of this massive design is that when field changes
  • Axiaimagnetlager can also be taken from the prior art.
  • DE 891 03 756 T2 shows a magnetic thrust bearing whose stator and
  • Rotor components have a laminated construction.
  • the Lammellenbleche are curved such that their tips lie in a common cylindrical plane. Adjacent side edges of the lamellar plates are also in
  • WO 2012/136452 A1 describes a thrust bearing device with an annular electric sheet arrangement : in which the individual sheets protrude radially outward.
  • the electrical sheet assembly comprises at least two concentric electrical steel rings All adjacent electrical sheets of each electric sheet ring abut each other on the inner circumference of the respective electric sheet metal ring, resulting in an increased iron filling. By using multiple electrical steel rings increases the manufacturing and assembly costs.
  • the object of the present invention is to provide a laminated stator, in particular for an axial magnetic bearing, which has a high iron filling factor and at the same time is easy to manufacture and assemble. Furthermore, it is intended to provide an axial magnetic bearing with improved efficiency.
  • a stator according to the appended claim 1 is initially used.
  • the stator according to the invention comprises an annular electric sheet arrangement with a plurality of electric sheets stacked in the circumferential direction. Is essential to the invention. that the electric sheets a
  • Adjacent electrical sheets are at least partially adjacent to each other.
  • the electric sheets can be stacked more densely, whereby the unusable air space between the electric sheets is reduced.
  • a reduction of the unusable air space is accompanied by an increase of the iron filling factor.
  • Iron fill factor in turn has a positive influence on the tensile force of an axial bearing equipped with such a stator, since the proportion of iron material at the air gap between disc and stator directly into the load capacity of the
  • Electrical sheets are provided, which in the circumferential direction to
  • Connecting means can not easily solve each other
  • the electrical steel sheets have a uniform profiling.
  • a profiling has proven with a sawtooth-shaped cross-section.
  • other profiles for example with wavy, in particular sine wave, or trapezoidal
  • the profiling should be chosen so that the smallest possible, unusable air space between the juxtaposed electrical sheets is formed
  • the filler is in a final assembly step tn the Siechb driven Mitteis filler can
  • the filler can be dispensed with.
  • the recess required to pass through the leads would be drilled directly into the stator.
  • the electrical sheets are preferably provided with an insulating layer. Due to the insulating layer occurring eddy currents are minimized compared to the eddy currents occurring in stators made of solid material In an advantageous ⁇ us exitsform the Elektrobieche grooves
  • the axial magnetic bearing according to the invention comprises the described stator and at least one annular coil, which is introduced into the electrical sheet arrangement of the stator for generating a magnetic field in the electric sheet assembly.
  • the cavities between the electrical sheets are preferably with a
  • Potting compound filled The use of a potting compound with ferromagnetic properties has proved to be particularly advantageous. This preserves the increased ferromagnetic effect due to the increased iron filling factor.
  • the potting compound also serves to electrically insulate the coil in the stator.
  • Fig. 1 is a perspective view of a portion of an inventive
  • FIG. 3 is a partial view of a profile with a wave-shaped cross section
  • Fig. 5 shows two perspective views of a portion of the stator with mounted
  • Fig. 8 shows two views of the stator according to the invention. Detailed description of the drawing
  • FIG. 1 shows a perspective view of a partial stucco of a stator 01 according to the invention.
  • Stator 01 is to be used in particular for axial magnetic bearings. It consists of a plurality of in the circumferential direction juxtaposed electric plates 02.
  • the electric plates 02 are each provided with a similar Profii réelle 03.
  • the juxtaposed electric plates 02 have circumferential grooves 04 for receiving at least one annular coil (not shown).
  • Adjacent electrical sheets 02 rest against each other at least in sections.
  • Oie Profiitechnik 03 should be chosen so that adjacent electric plates 02 abut each other in as many places in this way, the unusable air space between the electric plates 02 can be minimized and thereby the Etsenfuil composition be increased.
  • Fig. 2 shows a perspective view of an electric sheet 02.
  • the electric sheet 02 has a Profii ist 03 with a
  • Exemplary embodiment is the angle ⁇ ⁇ 30 °.
  • the stack height corresponds to the actual sheet thickness s p.
  • the stack height at the stator inner diameter would thus also be 0.35 mm.
  • the stack height is shown
  • a so-called Fulikos 05 can be driven into the stator lamination stack in a final assembly step.
  • FIG. 4 shows two perspective views of such a filler 05. The illustrations can be seen that the Fuli scholar 05 also a
  • Fig. 5 shows two perspective views of a portion of the stator 01 with mounted Fuli Republic 05
  • the filler 05 is according to a preferred
  • Embodiment of solid material is preferably made by a cutting process
  • the filler 05 can also be produced by selective laser sintering.
  • the filler 05 has an externally accessible
  • the filler 05 can also be dispensed with. In this case, the recesses needed to pass the leads would be drilled directly into the stator 01
  • FIG. 6 shows two different views of the stator 01 according to the invention. At the top, the side of the stator 01 facing the rotor is shown, while at the bottom, the

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

La présente invention concerne un stator (01) qui comprend un assemblage de tôle magnétique annulaire pourvu d'une pluralité de tôles magnétiques (02) disposées en une rangée dans la direction périphérique. Selon l'invention, les tôles magnétiques (02) ont un profil uniforme, des tôles magnétiques adjacentes (02) portant au moins partiellement l'une sur l'autre ; le profilé (03) a une épaisseur de tôle réelle au niveau du diamètre intérieur du stator et une épaisseur de tôle projetée au niveau du diamètre extérieur du stator ; l'épaisseur de tôle projetée est supérieure à l'épaisseur de tôle réelle, et l'épaisseur de tôle projetée dépend d'un angle (a) ; l'angle a est un angle d'inclinaison d'un segment de stator constitué d'une tôle magnétique. En outre, l'invention concerne également un palier magnétique axial qui comprend un tel stator (01) et au moins une bobine annulaire qui est insérée dans l'assemblage de tôles magnétiques du stator (01) pour générer un champ magnétique dans l'assemblage de tôles magnétique.
PCT/DE2015/200430 2014-09-16 2015-07-31 Stator feuilleté pour palier magnétique axial WO2016041554A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014218542.4 2014-09-16
DE102014218542.4A DE102014218542A1 (de) 2014-09-16 2014-09-16 Geblechter Stator für Axialmagnetlager

Publications (1)

Publication Number Publication Date
WO2016041554A1 true WO2016041554A1 (fr) 2016-03-24

Family

ID=54062594

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2015/200430 WO2016041554A1 (fr) 2014-09-16 2015-07-31 Stator feuilleté pour palier magnétique axial

Country Status (2)

Country Link
DE (1) DE102014218542A1 (fr)
WO (1) WO2016041554A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112260422A (zh) * 2020-10-14 2021-01-22 中车株洲电机有限公司 一种电机及其轴向磁悬浮轴承定子

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019216757A1 (de) * 2019-10-30 2021-05-06 Robert Bosch Gmbh Maschinenkomponente, elektrische Maschine und Verfahren zum Herstellen der Maschinenkomponente

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5731118A (en) * 1980-08-02 1982-02-19 Fuji Electric Co Ltd Core for reactor
US5153475A (en) * 1991-01-08 1992-10-06 Contraves Usa, Inc. Magnetic axial force actuator construction
DE69103756T2 (de) 1990-07-28 1994-12-22 Glacier Metal Co Ltd Magnetische lager.
JPH077896A (ja) * 1993-04-23 1995-01-10 Mitsubishi Electric Corp 積層鉄心の製造装置及び製造方法
JP2001339882A (ja) * 2000-05-30 2001-12-07 Mitsubishi Materials Corp 鉄心部材及びその製造方法
WO2012136452A1 (fr) 2011-04-06 2012-10-11 Siemens Aktiengesellschaft Ensemble palier axial présentant un remplissage en fer accru
US20130099503A1 (en) * 2011-10-25 2013-04-25 General Electric Company Lamination stack for an electrical machine stator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795881B1 (fr) * 1996-03-11 1999-06-09 Denso Corporation Dispositif électromagnétique à régulation de position pour stator
DE10256523A1 (de) * 2002-12-04 2004-06-24 Robert Bosch Gmbh Elektrische Maschine, insbesondere bürstenloser Synchronmotor
FR2916103B1 (fr) * 2007-05-11 2009-06-26 Cnes Epic Actionneur electromagnetique a reluctance variable
DE102007000425A1 (de) * 2007-08-03 2009-02-05 Cetex Institut für Textil- und Verarbeitungsmaschinen gemeinnützige GmbH Spinn- oder Zwirnmaschine
DE102009029472A1 (de) * 2009-09-15 2011-03-24 Robert Bosch Gmbh Permanentmagneterregte elektrische Maschine mit reduziertem Lastmoment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5731118A (en) * 1980-08-02 1982-02-19 Fuji Electric Co Ltd Core for reactor
DE69103756T2 (de) 1990-07-28 1994-12-22 Glacier Metal Co Ltd Magnetische lager.
US5153475A (en) * 1991-01-08 1992-10-06 Contraves Usa, Inc. Magnetic axial force actuator construction
JPH077896A (ja) * 1993-04-23 1995-01-10 Mitsubishi Electric Corp 積層鉄心の製造装置及び製造方法
JP2001339882A (ja) * 2000-05-30 2001-12-07 Mitsubishi Materials Corp 鉄心部材及びその製造方法
WO2012136452A1 (fr) 2011-04-06 2012-10-11 Siemens Aktiengesellschaft Ensemble palier axial présentant un remplissage en fer accru
US20130099503A1 (en) * 2011-10-25 2013-04-25 General Electric Company Lamination stack for an electrical machine stator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112260422A (zh) * 2020-10-14 2021-01-22 中车株洲电机有限公司 一种电机及其轴向磁悬浮轴承定子

Also Published As

Publication number Publication date
DE102014218542A1 (de) 2016-03-17

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