EP 4038726 A1 20220810 - WINDING SCHEME FOR AN ELECTRIC MACHINE
Title (en)
WINDING SCHEME FOR AN ELECTRIC MACHINE
Title (de)
WICKELSCHEMA FÜR EINE ELEKTRISCHE MASCHINE
Title (fr)
SYSTÈME D'ENROULEMENT POUR UNE MACHINE ÉLECTRIQUE
Publication
Application
Priority
- DE 102019215094 A 20191001
- EP 2020076743 W 20200924
Abstract (en)
[origin: WO2021063802A1] The invention relates to a shaft winding for an electric machine, wherein at least a number of coil strands corresponding to the number of holes q is provided connected in parallel, with each part strand being formed by a plurality of hairpins (6, 6'), characterized in that two different variants of hairpins (6, 6') are provided, in that in a first variant of the hairpins (6) the turning area W between the conductor elements has a winding step WK reduced by one, that is to say WK = WS - 1, in that in a second variant of the hairpins (6') the turning area W has an extended winding step WL, which is greater by the number of holes q than the reduced winding step WK, that is to say WL = WK + q, and in that in all variants of the hairpins (6, 6') the contact areas K are each deformed by half of the standard winding step WS in the direction opposite to the turning area W. The invention further relates to an electric machine with a shaft winding of this kind.
IPC 8 full level
H02K 3/28 (2006.01); H02K 3/12 (2006.01); H02K 3/50 (2006.01)
CPC (source: CN EP US)
H02K 3/12 (2013.01 - CN); H02K 3/28 (2013.01 - CN EP US); H02K 3/12 (2013.01 - EP); H02K 3/50 (2013.01 - EP); H02K 2213/03 (2013.01 - CN US)
Citation (search report)
See references of WO 2021063802A1
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 102019215094 A1 20210401; CN 114467244 A 20220510; EP 4038726 A1 20220810; US 2022360128 A1 20221110; WO 2021063802 A1 20210408
DOCDB simple family (application)
DE 102019215094 A 20191001; CN 202080069547 A 20200924; EP 2020076743 W 20200924; EP 20780667 A 20200924; US 202017765493 A 20200924