EP 1861911 A1 20071205 - ELECTRIC INDUCTION MACHINE
Title (en)
ELECTRIC INDUCTION MACHINE
Title (de)
ELEKTRISCHE DREHFELDMASCHINE
Title (fr)
MACHINE ELECTRIQUE A INDUCTION
Publication
Application
Priority
- EP 2006001877 W 20060302
- DE 102005012503 A 20050316
- DE 102005032122 A 20050707
Abstract (en)
[origin: WO2006097196A1] The invention relates to an electric induction machine having a stator that is impinged upon by an electromagnetic rotating field. Said stator comprises a yoke with stator teeth having at least partially circumferential grooves in which cools are disposed which generate a magnetic field, and a rotor. Said rotor can be rotated about an axis, and comprises permanent magnets and is separated from the stator by an air gap. The rotor is fixed to a pulley and the stator teeth in the stator are combined to modules the number of which corresponds to the current phases or to the integer multiples thereof. Every module comprises a number of at least one stator tooth. Directly adjacent stator teeth of a module have an opposite polarity of the magnetic field at an optional ratio of pole pitch of the rotor to tooth pitch of the stator of 9/8. The inventive design allows to provide an especially flat electric drive, especially for an elevator drive, which has an increased power density while having a considerably reduced torque ripple.
IPC 8 full level
H02K 1/27 (2006.01)
CPC (source: EP US)
H02K 7/1008 (2013.01 - EP US); H02K 21/22 (2013.01 - EP US); H02K 3/28 (2013.01 - EP US)
Citation (search report)
See references of WO 2006097196A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006097196 A1 20060921; EP 1861911 A1 20071205; US 2009160296 A1 20090625
DOCDB simple family (application)
EP 2006001877 W 20060302; EP 06707354 A 20060302; US 88660906 A 20060302