EP 2308151 A2 20110413 - PERMANENT MAGNET ROTOR, AND ROTATING MACHINE COMPRISING SUCH A ROTOR
Title (en)
PERMANENT MAGNET ROTOR, AND ROTATING MACHINE COMPRISING SUCH A ROTOR
Title (de)
PERMANENTMAGNETROTOR UND EINEN SOLCHEN ROTOR UMFASSENDE DREHMASCHINE
Title (fr)
ROTOR A AIMANTS PERMANENTS ET MACHINE TOURNANTE COMPORTANTE UN TEL ROTOR
Publication
Application
Priority
- FR 2009051132 W 20090615
- FR 0853968 A 20080616
Abstract (en)
[origin: WO2009153511A2] The present invention relates to a rotor (1) for rotating an electric machine having permanent magnets (7) and flux concentration, comprising: a shaft (2) extending along the rotational axis (X) of the rotor (1), a rotor body (3) placed on the shaft (2), the rotor body (3) comprising: - a central opening (4) for the mounting thereof on the shaft (2); - radially oriented recesses (5) wherein the permanent magnets (7) are placed; and in at least one angular space (40) separating two consecutive recesses (5), at least one cavity (6) leading neither to the central opening (4) nor to the two consecutive recesses (5), said cavity or cavities (6) located in said space occupying an angular area (a) around the rotational axis (X) of the rotor (1) greater than or equal to half of the angular area (ß) of said space (40).
IPC 8 full level
H02K 1/27 (2006.01)
CPC (source: EP US)
H02K 1/2773 (2013.01 - EP US)
Citation (search report)
See references of WO 2009153511A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009153511 A2 20091223; WO 2009153511 A3 20100514; CN 102067411 A 20110518; EP 2308151 A2 20110413; FR 2932618 A1 20091218; FR 2932618 B1 20101119; JP 2011524735 A 20110901; US 2011121668 A1 20110526
DOCDB simple family (application)
FR 2009051132 W 20090615; CN 200980122713 A 20090615; EP 09766073 A 20090615; FR 0853968 A 20080616; JP 2011514094 A 20090615; US 99712309 A 20090615