EP 4082104 A1 20221102 - BRUSH-COMMUTATED DC ELECTRIC MOTOR WITH IMPROVED VIBRATION BEHAVIOUR
Title (en)
BRUSH-COMMUTATED DC ELECTRIC MOTOR WITH IMPROVED VIBRATION BEHAVIOUR
Title (de)
BÜRSTENKOMMUTIERTER DC-ELEKTROMOTOR MIT VERBESSERTEM SCHWINGUNGSVERHALTEN
Title (fr)
MOTEUR ÉLECTRIQUE À COURANT CONTINU À COMMUTATION PAR BALAIS DOTÉ D'UN COMPORTEMENT VIBRATOIRE AMÉLIORÉ
Publication
Application
Priority
- EP 19219406 A 20191223
- EP 2020087765 W 20201223
Abstract (en)
[origin: WO2021130312A1] The present invention relates to a brush-commutated DC electric motor, having a stator, which comprises a permanent magnet with a number p of pole pairs, and having a rotor, which can rotate in relation to the stator and has a hollow-cylindrical iron-free winding with a geometric axis and a number Q of sub-coils, and also has a collector with a number K of collector laminations, wherein the sub-coils are arranged distributed over the periphery of the rotor, and wherein the brush-commutated DC electric motor further has at least one pair of brushes which are in contact with the collector and by means of which the sub-coils are energized. According to the invention, provision is made for the arrangement of the brushes and the interconnection of the sub-coils to be selected in such a way that in each case a number n≥2 of sub- coils, which each are arranged offset by 360°/n in a rotationally symmetrical manner with respect to the axis of the rotor, are always supplied with the same current at the same time.
IPC 8 full level
H02K 23/30 (2006.01); H02K 23/58 (2006.01)
CPC (source: EP US)
H02K 1/12 (2013.01 - US); H02K 1/27 (2013.01 - US); H02K 13/10 (2013.01 - US); H02K 23/30 (2013.01 - EP); H02K 23/58 (2013.01 - EP); H02K 13/04 (2013.01 - EP); H02K 13/10 (2013.01 - EP)
Citation (search report)
See references of WO 2021130312A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 3843251 A1 20210630; CN 114868326 A 20220805; EP 4082104 A1 20221102; US 2023013171 A1 20230119; WO 2021130312 A1 20210701
DOCDB simple family (application)
EP 19219406 A 20191223; CN 202080089494 A 20201223; EP 2020087765 W 20201223; EP 20830268 A 20201223; US 202017786351 A 20201223