US 11,658,449 B2
Slipring with wear monitoring
Christian Holzapfel, Fürstenfeldbruck (DE); Matthias Hermann, Dachau (DE); Holger Steffens, Schwabmünchen (DE); and Holger Häffner, Schwabmünchen (DE)
Assigned to SCHLEIFRING GmbH, Fürstenfeldbruck (DE)
Filed by SCHLEIFRING GMBH, Fürstenfeldbruck (DE)
Filed on Apr. 7, 2017, as Appl. No. 15/482,596.
Application 15/482,596 is a continuation of application No. PCT/EP2015/073764, filed on Oct. 14, 2015.
Prior Publication US 2017/0214202 A1, Jul. 27, 2017
Int. Cl. H01R 39/58 (2006.01); H01R 39/22 (2006.01); H01R 39/08 (2006.01); H01R 39/56 (2006.01); H01R 43/12 (2006.01)
CPC H01R 39/58 (2013.01) [H01R 39/08 (2013.01); H01R 39/22 (2013.01); H01R 39/56 (2013.01); H01R 43/12 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A slipring assembly comprising:
a slipring module, a slipring brush block, and a wear-indication circuit,
the slipring module further comprising a plurality of sliding tracks,
the slipring brush block further comprising a plurality of sliding brushes configured to slide on sliding tracks from the plurality of sliding tracks,
wherein at least one combination of a sliding track with a respectively-corresponding sliding brush is a wear-indication track-brush pair that is electrically connected to the wear-indication circuit,
wherein the sliding track of said wear-indication track-brush pair has a shorter lifetime than that of any remaining track from said plurality of sliding tracks,
wherein the sliding brush of said wear-indication track-brush pair contains a structural feature that, in operation of the slipring assembly, causes a lifetime of said sliding brush to be shorter than that of any other sliding brush of the slipring assembly.