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1. US20120098376 - Permanent-magnet synchronous motor and electric power-assisted steering system

Amt
Vereinigte Staaten von Amerika
Aktenzeichen/Anmeldenummer 13119013
Anmeldedatum 14.09.2009
Veröffentlichungsnummer 20120098376
Veröffentlichungsdatum 26.04.2012
Erteilungsnummer 08614532
Erteilungsdatum 24.12.2013
Veröffentlichungsart B2
IPC
H02K 1/06
HSektion H Elektrotechnik
02Erzeugung, Umwandlung oder Verteilung von elektrischer Energie
KDynamoelektrische Maschinen
1Einzelheiten des magnetischen Kreises
06gekennzeichnet durch die Gestalt, die Form oder den Aufbau
CPC
H02K 21/14
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
21Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
12with stationary armatures and rotating magnets
14with magnets rotating within the armatures
H02K 1/276
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2706Inner rotor
272where the magnetisation axis of the magnets is radial or tangential
274consisting of a plurality of circumferentially positioned magnets
2753consisting of magnets or groups of magnets arranged with alternating polarity
276Magnets embedded in the magnetic core
H02K 1/278
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2706Inner rotor
272where the magnetisation axis of the magnets is radial or tangential
274consisting of a plurality of circumferentially positioned magnets
2753consisting of magnets or groups of magnets arranged with alternating polarity
278Surface mounted magnets; Inset magnets
H02K 3/34
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
3Details of windings
32Windings characterised by the shape, form or construction of the insulation
34between conductors or between conductor and core, e.g. slot insulation
H02K 29/03
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
29Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
03with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
H02K 2201/06
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
2201Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
06Magnetic cores, or permanent magnets characterised by their skew
Anmelder Ombach Grzegorz
Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wurzburg
Junak Jacek
Steegmueller Horst
Erfinder Ombach Grzegorz
Junak Jacek
Steegmueller Horst
Vertreter Fulbright & Jaworski, LLP
Swenson Erik G.
Prioritätsdaten 102008042100 15.09.2008 DE
Titel
(EN) Permanent-magnet synchronous motor and electric power-assisted steering system
Zusammenfassung
(EN)

The present invention relates to a permanent-magnet synchronous motor, particularly an electric three-phase motor, comprising a stator having a stator yoke in which stator teeth with interposed stator grooves are arranged, wherein on each stator tooth at least one winding is provided, further comprising a rotor having permanent magnets, wherein the stator teeth are arranged in layers as disks in the axial direction of the stator and designed at least as two different disks, wherein the stator teeth in a first disk are connected peripherally among each other at the ends thereof pointing toward the rotor in the form of a stator star by a connecting bridge and in a second disk have an interruption instead of the connecting bridge. The present invention further relates to an electric power-assisted steering system.