EP 2856620 A1 20150408 - ELECTRONICALLY COMMUTATED DC MOTOR WITH SHIELDING
Title (en)
ELECTRONICALLY COMMUTATED DC MOTOR WITH SHIELDING
Title (de)
ELEKTRONISCH KOMMUTIERTER GLEICHSTROMMOTOR MIT ABSCHIRMUNG
Title (fr)
MOTEUR À COURANT CONTINU À COMMUTATION ÉLECTRONIQUE POURVU D'UN BLINDAGE
Publication
Application
Priority
- DE 102012208847 A 20120525
- EP 2013058895 W 20130429
Abstract (en)
[origin: WO2013174626A1] In an electronically commutated DC motor having a stator unit (5) and a rotor unit (1) which is in the form of an external rotor, and having stationary sintered bearings (8, 9), the invention proposes that the rotor unit (1) is conductively connected to the shaft (3) in order to connect a conductive shielding, which is formed on the rotor unit (1), to a defined electrical potential, and that the sintered bearing (8, 9) is conductively connected to the potential, so that the shielding of the rotor unit (1) is capacitively coupled to the potential by means of the electrically insulating, oil-filled bearing gap which is arranged between the shaft (3) and the sintered bearing (8, 9). Therefore, a sliding contact is not required.
IPC 8 full level
H02K 5/16 (2006.01); H02K 11/00 (2006.01)
CPC (source: EP US)
H02K 5/16 (2013.01 - EP US); H02K 11/0141 (2020.08 - EP US); H02K 11/40 (2016.01 - EP US)
Citation (search report)
See references of WO 2013174626A1
Citation (examination)
DE 102010045829 A1 20110414 - JOHNSON ELECTRIC SA [CH]
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)
DE 102012208847 A1 20131128; CN 104303402 A 20150121; CN 104303402 B 20180116; EP 2856620 A1 20150408; US 2015171713 A1 20150618; US 9673686 B2 20170606; WO 2013174626 A1 20131128
DOCDB simple family (application)
DE 102012208847 A 20120525; CN 201380026981 A 20130429; EP 13719115 A 20130429; EP 2013058895 W 20130429; US 201314401865 A 20130429