EP 1421664 A1 20040526 - ELECTRIC MOTOR EXCITED BY PERMANENT MAGNETS
Title (en)
ELECTRIC MOTOR EXCITED BY PERMANENT MAGNETS
Title (de)
PERMANENTMAGNETISCH ERREGTER ELEKTROMOTOR
Title (fr)
MOTEUR ELECTRIQUE EXCITE PAR DES AIMANTS PERMANENTS
Publication
Application
Priority
- DE 0200725 W 20020227
- DE 10135019 A 20010718
Abstract (en)
[origin: WO03009449A1] According to the invention, the rotor (7) of an electric motor is provided with recesses (12, 13, 14, 15, 16, 17, 18, 19) on its surface and/or in its inner region, said recesses being positioned and measured in such a way that they do not interrupt lines of the magnetic current which are radially oriented in relation to the surface of the rotor (7) and which form a return path by means of the rotor (7). Said recesses reduce the thermal capacity of the rotor (7) to such an extent that a layer forming a plurality of permanent magnets (8, 9, 10, 11), and consisting of a magnetic material, can be sprayed onto the surface of the rotor (7).
IPC 1-7
IPC 8 full level
H02K 1/18 (2006.01); H02K 1/22 (2006.01); H02K 1/27 (2006.01); H02K 15/03 (2006.01); H02K 21/14 (2006.01)
CPC (source: EP KR US)
H02K 1/27 (2013.01 - KR); H02K 1/2726 (2013.01 - EP US); H02K 15/03 (2013.01 - EP US); H02K 21/14 (2013.01 - EP US)
Citation (search report)
See references of WO 03009449A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03009449 A1 20030130; CN 1286244 C 20061122; CN 1462499 A 20031217; DE 10135019 A1 20030130; EP 1421664 A1 20040526; JP 2004521600 A 20040715; KR 100913683 B1 20090824; KR 20040019333 A 20040305; US 2003151324 A1 20030814; US 6803690 B2 20041012
DOCDB simple family (application)
DE 0200725 W 20020227; CN 02801461 A 20020227; DE 10135019 A 20010718; EP 02717982 A 20020227; JP 2003514682 A 20020227; KR 20047000685 A 20020227; US 34350003 A 20030131