EP 1964240 A1 20080903 - ROTOR OF AN ELECTRICAL MACHINE, IN PARTICULAR OF A MOTOR, AND METHOD FOR PRODUCING A ROTOR
Title (en)
ROTOR OF AN ELECTRICAL MACHINE, IN PARTICULAR OF A MOTOR, AND METHOD FOR PRODUCING A ROTOR
Title (de)
ROTOR EINER ELEKTRISCHEN MASCHINE, INSBESONDERE EINES MOTORS, UND VERFAHREN ZUR HERSTELLUNG EINES ROTORS
Title (fr)
ROTOR D'UNE MACHINE ÉLECTRIQUE, NOTAMMENT D'UN MOTEUR, ET PROCÉDÉ POUR FABRIQUER UN ROTOR
Publication
Application
Priority
- EP 2006067325 W 20061012
- DE 102005059587 A 20051214
Abstract (en)
[origin: WO2007068515A1] The present invention relates to a rotor (13) for electrical machines having a magnetic return path (5), which comprises at least one laminate stack (6) having laminates (1), wherein the laminate (1) has a basic body (2) and at least two fixing elements (4) which are integrated on the basic body (2). At least one permanent magnet (7), which is fixed between two fixing elements (4) of one or more laminates (1) of the rotor (13), is provided on the rotor (13). The fixing elements (4) have lesser permeability than the basic body (2) of the laminate (1). The invention also relates to a method for producing such a rotor (13), in which, in the first step, at least one of the fixing elements (4) is thermally treated until the permeability of the fixing element (4) is 1. In this case, the permeability of the basic body (2) is unchanged. In the second step, the laminate (1) is cooled.
IPC 8 full level
H02K 1/27 (2006.01)
CPC (source: EP US)
H02K 1/278 (2013.01 - EP US)
Citation (search report)
See references of WO 2007068515A1
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
WO 2007068515 A1 20070621; CN 101331664 A 20081224; CN 101331664 B 20121212; DE 102005059587 A1 20070705; EP 1964240 A1 20080903; JP 2009519695 A 20090514; JP 4878373 B2 20120215
DOCDB simple family (application)
EP 2006067325 W 20061012; CN 200680047012 A 20061012; DE 102005059587 A 20051214; EP 06807192 A 20061012; JP 2008544905 A 20061012