EP 1101272 A1 20010523 - ROTORS UTILIZING A STEPPED SKEW
Title (en)
ROTORS UTILIZING A STEPPED SKEW
Title (de)
ROTOREN MIT STUFENFÖRMIGERSCHRÄGE
Title (fr)
ROTORS UTILISANT UN ECART ANGULAIRE ETAGE
Publication
Application
Priority
- US 9914391 W 19990625
- US 9077398 P 19980626
Abstract (en)
[origin: WO0001058A1] Divided magnet rotors R having a stepped skew rather than a helical skew are described. The stepped skew enables the use of straight magnet sections (44) that can be inserted into the rotor core notches (38) thereby eliminating the need to produce a helix from the rotor cage. The stepped skew is effective in decoupling stator slot order harmonics. In addition, the stepped skew rotor R includes, in some embodiments, open slots (22) so that the rotor is not subject to rotor bridge saturation.
IPC 1-7
IPC 8 full level
H02K 1/16 (2006.01); H02K 1/26 (2006.01); H02K 1/27 (2006.01); H02K 1/30 (2006.01); H02K 15/03 (2006.01); H02K 17/16 (2006.01); H02K 17/26 (2006.01); H02K 19/14 (2006.01); H02K 21/46 (2006.01)
CPC (source: EP KR)
H02K 1/165 (2013.01 - EP); H02K 1/265 (2013.01 - EP); H02K 17/165 (2023.05 - EP); H02K 19/14 (2013.01 - EP); H02K 21/14 (2013.01 - KR); H02K 21/46 (2013.01 - EP); H02K 2201/06 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0001058 A1 20000106; AU 4584099 A 20000117; BR 9911442 A 20040106; CA 2334319 A1 20000106; CN 1099750 C 20030122; CN 1307742 A 20010808; EP 1101272 A1 20010523; EP 1101272 A4 20041027; HU P0102029 A2 20011028; HU P0102029 A3 20021028; IL 134571 A0 20010430; IL 134571 A 20050831; JP 2004500789 A 20040108; KR 20010023214 A 20010326; PL 338792 A1 20001120
DOCDB simple family (application)
US 9914391 W 19990625; AU 4584099 A 19990625; BR 9911442 A 19990625; CA 2334319 A 19990625; CN 99807841 A 19990625; EP 99928866 A 19990625; HU P0102029 A 19990625; IL 13457199 A 19990625; JP 2000557538 A 19990625; KR 20007001843 A 20000223; PL 33879299 A 19990625