US 12,323,017 B2
Rotor and electric machine
Michael Eibl, Inning A. Holz (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/801,466
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Mar. 4, 2021, PCT No. PCT/EP2021/055471
§ 371(c)(1), (2) Date Aug. 22, 2022,
PCT Pub. No. WO2021/197753, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 10 2020 109 019.6 (DE), filed on Apr. 1, 2020.
Prior Publication US 2023/0117021 A1, Apr. 20, 2023
Int. Cl. H02K 15/12 (2025.01); H02K 3/52 (2006.01)
CPC H02K 15/12 (2013.01) [H02K 3/527 (2013.01); H02K 2203/09 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A rotor for a current-excited synchronous machine, at least partially embedded in potting compound, comprising:
a plurality of windings that extend outward from a center axis of the rotor; and
a plurality of conductor elements, wherein individual ones of the conductor elements are arranged on the rotor and each form a winding of the plurality of windings and are each connected to a current collecting element,
wherein the potting compound is provided at least between the current collecting element and each of the plurality of windings, and
wherein connection portions of each of the plurality of conductor elements, each extending between each one of the plurality of windings and the current collecting element, is shielded from the potting compound by a decoupling element arranged at each of the connection portions.