Global Patent Index - EP 3602736 A1

EP 3602736 A1 20200205 - DYNAMO-ELECTRIC MACHINE WITH REDUCED COGGING TORQUE

Title (en)

DYNAMO-ELECTRIC MACHINE WITH REDUCED COGGING TORQUE

Title (de)

DYNAMOELEKTRISCHE MASCHINE MIT REDUZIERTEN RASTMOMENTEN

Title (fr)

MACHINE DYNAMOELECTRIQUE A COUPLES DE VERROUILLAGE RÉDUITS

Publication

EP 3602736 A1 20200205 (DE)

Application

EP 17832908 A 20171220

Priority

  • DE 102017105977 A 20170321
  • DE 2017101087 W 20171220

Abstract (en)

[origin: WO2018171822A1] The invention relates to a dynamo-electric machine. The aim of the invention is to reduce groove cogging torques and allow a high power density. This is achieved in that the machine comprises • a primary part (1) with a plurality of teeth (7), grooves located between the teeth (7), and a yoke made of a ferromagnetic material, • a secondary part (2) which is arranged at a distance from the primary part (1) via an air gap and which comprises a plurality of permanent magnets (4) lying adjacently to one another with alternating polarities, and • a multiphase single tooth winding (8) arranged in the grooves, wherein adjacent tooth windings (8) are connected so as to form groups with an identical electric phase, • adjacent teeth (7) of the groups are connected to single tooth windings (8) with an identical electric phase via the yoke in a magnetically conductive manner, and • the yoke is interrupted between adjacent single tooth windings (8) with different electric phases.

IPC 8 full level

H02K 1/14 (2006.01); H02K 3/26 (2006.01); H02K 41/03 (2006.01)

CPC (source: EP US)

H02K 1/141 (2013.01 - EP); H02K 1/143 (2013.01 - EP); H02K 3/26 (2013.01 - EP US); H02K 21/24 (2013.01 - US); H02K 29/03 (2013.01 - US); H02K 41/031 (2013.01 - EP US); H02K 2203/03 (2013.01 - US)

Citation (search report)

See references of WO 2018171822A1

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 2018171822 A1 20180927; DE 102017105977 A1 20180927; EP 3602736 A1 20200205; US 2020091805 A1 20200319

DOCDB simple family (application)

DE 2017101087 W 20171220; DE 102017105977 A 20170321; EP 17832908 A 20171220; US 201716495118 A 20171220