EP 3411938 A1 20181212 - INTERIOR PERMANENT-MAGNET ROTOR OF A BRUSHLESS MOTOR
Title (en)
INTERIOR PERMANENT-MAGNET ROTOR OF A BRUSHLESS MOTOR
Title (de)
INNERER PERMANENTMAGNETROTOR EINES BÜRSTENLOSEN MOTORS
Title (fr)
ROTOR À AIMANT PERMANENT INTÉRIEUR D'UN MOTEUR SANS BALAIS
Publication
Application
Priority
EP 2016052491 W 20160205
Abstract (en)
[origin: WO2017133784A1] The present invention relates to a brushless electric motor (1) for a water conducting household appliance. The brushless electric motor (1) comprises an outer stator; a shaft (2) and an inner magnet-rotor (3) without a core. In the brushless electric motor (1) of the present invention, the inner magnet-rotor (3) includes a cylindrical permanent magnet (4) having an axial hole (5) for receiving the shaft (2) with a clearance (6), wherein the shaft (2) has a ridged surface (7) inside the axial hole (5); attachment grooves (8) formed into the upper face (9) and the lower face (10) of the cylindrical permanent magnet (4) and an overmolded plastic retainer (11) formed exclusively onto the upper face (9) and the lower face (10) and into the axial hole (5) so as to inseparably join the cylindrical permanent magnet (4) with the shaft (2) and integrally fill the attachment grooves (8) and the clearance (6).
IPC 8 full level
H02K 1/27 (2006.01); H02K 1/28 (2006.01); H02K 5/08 (2006.01); H02K 7/00 (2006.01); H02K 7/116 (2006.01)
CPC (source: EP)
H02K 1/2733 (2013.01); H02K 5/08 (2013.01); H02K 7/003 (2013.01); H02K 1/28 (2013.01); H02K 7/1166 (2013.01)
Citation (search report)
See references of WO 2017133784A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017133784 A1 20170810; EP 3411938 A1 20181212; TR 201701600 A2 20171221
DOCDB simple family (application)
EP 2016052491 W 20160205; EP 16703527 A 20160205; TR 201701600 A 20170202