EP 3465876 A1 20190410 - ROTOR CORE USING PERMANENT MAGNETS, AND ELECTRIC MACHINE USING SAID ROTOR CORE
Title (en)
ROTOR CORE USING PERMANENT MAGNETS, AND ELECTRIC MACHINE USING SAID ROTOR CORE
Title (de)
ROTORKERN MIT VERWENDUNG VON DAUERMAGNETEN BZW. ELEKTRISCHE MASCHINE MIT VERWENDUNG DIESES ROTORKERNS
Title (fr)
NOYAU DE ROTOR AVEC UTILISATION D'AIMANTS PERMANENTS OU MACHINE ÉLECTRIQUE UTILISANT CE NOYAU DE ROTOR
Publication
Application
Priority
- DE 102016209709 A 20160602
- EP 2017058910 W 20170413
Abstract (en)
[origin: WO2017207158A1] A magnetically conductive rotor core (100) of a rotor of an electric machine which is excited by permanent magnets comprises, for a low torque ripple and high torque, two permanent magnets (101; 102) per magnetic pole of the rotor in a "V"-shaped design (101, 102) which opens towards the rotor outer surface (104), and, for each permanent magnet, a recess (111; 112) which adjoins that side surface (115; 116) of said permanent magnet which faces the rotor outer surface, which recess (111; 112) extends towards the rotor outer surface and is divided therefrom by way of a connecting web (113; 114). Each of the recesses has a supporting shoulder (121; 122) for the permanent magnet in one of the borders (119; 120) thereof which points in the circumferential direction (105) of the rotor core towards the exterior of the "V"-shaped design, and a shaped-out formation (125; 126) in one of the borders (123; 124) thereof which points towards the interior of the "V"-shaped design. The shaped-out formation protrudes towards the interior of the "V"-shaped design beyond a plane of a pole surface (127) of the permanent magnet, which pole surface (127) faces the interior of the "V"-shaped design.
IPC 8 full level
H02K 1/27 (2006.01)
CPC (source: EP)
H02K 1/274 (2013.01); H02K 1/2766 (2013.01)
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 2017207158 A1 20171207; CN 109314419 A 20190205; DE 102016209709 A1 20171221; EP 3465876 A1 20190410
DOCDB simple family (application)
EP 2017058910 W 20170413; CN 201780034016 A 20170413; DE 102016209709 A 20160602; EP 17720384 A 20170413