US 11,722,042 B2
Method for potting an SSM rotor and SSM rotor having hybrid rotor potting
Patrick Herrmann, Pfaffenhofen a.d. Ilm (DE); Michael Schwarzer, Munich (DE); and Paul Böckenhoff, Ingolstadt (DE)
Assigned to AUDI AG, Ingolstadt (DE)
Filed by AUDI AG, Ingolstadt (DE)
Filed on Apr. 5, 2021, as Appl. No. 17/222,083.
Claims priority of application No. 10 2020 111 333.1 (DE), filed on Apr. 27, 2020.
Prior Publication US 2021/0336518 A1, Oct. 28, 2021
Int. Cl. H02K 15/12 (2006.01); H02K 15/02 (2006.01); H02K 1/26 (2006.01); B29C 45/14 (2006.01); H02K 1/28 (2006.01); B29C 45/16 (2006.01); B29L 31/00 (2006.01); B29K 63/00 (2006.01); B29K 67/00 (2006.01)
CPC H02K 15/12 (2013.01) [B29C 45/14819 (2013.01); B29C 45/1671 (2013.01); H02K 1/26 (2013.01); H02K 1/28 (2013.01); H02K 15/024 (2013.01); B29K 2063/00 (2013.01); B29K 2067/00 (2013.01); B29L 2031/7498 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for potting separately excited synchronous machine (SSM) rotor for an electrical machine, which has a rotor body and a rotor winding applied thereon, having the following steps:
arranging the SSM rotor to be potted having upright alignment in a potting mold;
introducing a first casting compound from below into the casting mold until a certain pre-fill level is reached, at which the first casting compound extends at least up to the lower end face of the rotor winding;
introducing a second potting compound from above into the potting mold, wherein the second potting compound is poured onto the rotor winding and is drawn into the rotor winding;
further introducing the first potting compound from below into the potting mold until a certain final fill level is reached; and
curing of the potting compounds.