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US 12,580,460 B2Granted
Electrical machine having a conductive layer
AssigneeAktiebolaget Skf
InventorsMathieu Hubert, Paul Feliciano, Thomas Perrotin, Anthony Simonin
Life of this patent
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Abstract
An electrical machine includes a non-rotating part, a rotating part, at least one bearing that includes a rotating ring and a non-rotating ring and supports the rotating part, a grounding brush fixed and secured to the non-rotating part, and having a free end extending towards the rotating ring of the bearing, and a conductive layer covering a portion of a surface of the rotating ring of the bearing such that the free end of the grounding brush is in contact with the conductive layer.
Claims9
An electrical machine comprising:
- a non-rotating part;
- a rotating part;
- at least one bearing supporting said rotating part, the at least one bearing comprising:
- a non-rotating outer ring comprising a lateral face;
- and
- a rotating inner ring comprising an axial portion extending axially beyond the lateral face of the non-rotating outer ring, wherein the axial portion of the rotating inner ring comprises a cylindrical surface;
- and
- a grounding brush fixed to the non-rotating part, the grounding brush comprising a free end extending towards the rotating inner ring of the at least one bearing;
- and
- a conductive layer covering a portion of the cylindrical surface of the axial portion of the rotating inner ring of the at least one bearing,
- wherein the free end of the grounding brush is in contact with the conductive layer.
8 more elements
Dependencies are inferred from the claim text.