US 11,936,254 B2
Electrical machine having a conductive layer
Mathieu Hubert, Turin (IT); Paul Feliciano, Saint Cyr-sur-Loire (FR); Thomas Perrotin, Saint Roch (FR); and Anthony Simonin, Tours (FR)
Assigned to AKTIEBOLAGET SKF, (SE)
Filed by AKTIEBOLAGET SKF, Gothenburg (SE)
Filed on Apr. 4, 2022, as Appl. No. 17/712,304.
Claims priority of application No. 102021000009014 (IT), filed on Apr. 12, 2021.
Prior Publication US 2022/0329135 A1, Oct. 13, 2022
Int. Cl. H02K 5/173 (2006.01); H02K 7/08 (2006.01); H02K 11/40 (2016.01)
CPC H02K 11/40 (2016.01) [H02K 5/173 (2013.01); H02K 7/08 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electrical machine, comprising:
a non-rotating part;
a rotating part;
at least one bearing supporting said rotating part, the bearing comprising a rotating outer ring and a non-rotating inner ring;
a grounding brush fixed to the non-rotating part and having a free end extending towards the rotating outer ring of the bearing; and
a conductive layer covering at least partially a surface of the rotating outer ring of the bearing, wherein the free end of the grounding brush is in contact with the conductive layer.