US 12,088,163 B2
Stator for an electric machine
Uwe Burmeister, Munich (DE); Thorsten Rienecker, Munich (DE); Philipp Schlag, Munich (DE); and Daniel Winkle, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/269,657
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Jul. 23, 2019, PCT No. PCT/EP2019/069816
§ 371(c)(1), (2) Date Feb. 19, 2021,
PCT Pub. No. WO2020/038680, PCT Pub. Date Feb. 27, 2020.
Claims priority of application No. 10 2018 214 081.2 (DE), filed on Aug. 21, 2018.
Prior Publication US 2021/0184530 A1, Jun. 17, 2021
Int. Cl. H02K 15/10 (2006.01); H02K 3/38 (2006.01); H02K 3/50 (2006.01); H02K 15/12 (2006.01)
CPC H02K 3/38 (2013.01) [H02K 3/505 (2013.01); H02K 15/105 (2013.01); H02K 15/12 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A stator for an electric machine, comprising:
a shaped bar winding,
wherein the shaped bar winding is formed by a multiplicity of shaped bars which have connection points in the region of an end winding,
wherein the connection points are enveloped by a casting layer,
wherein a thickness of the casting layer is predetermined by an enveloping element, which is arranged on a contour of the end winding, and
wherein the enveloping element includes a plurality of protrusions that extend radially toward and away from a longitudinal axis of the enveloping element from an innermost circumferential surface and an outermost circumferential surface of the enveloping element, respectively, and extend axially away from an end surface of the enveloping element at an outer end of the stator in parallel to the longitudinal axis.