US 9,812,255 B2
Contactless power and data transfer
Robert Zwemmer, Uitgeest (NL); Pieter Rudolf Faasse, Amsterdam (NL); and Steven Michiel Bardet, Amsterdam (NL)
Assigned to STICHTING NATIONAAL LUCHT-EN RUIMTEVAART LABORATORIUM, Amsterdam (NL)
Appl. No. 14/415,933
Filed by STICHTING NATIONAAL LUCHT-EN RUIMTEVAART LABORATORIUM, Amsterdam (NL)
PCT Filed Jul. 16, 2013, PCT No. PCT/EP2013/065031
§ 371(c)(1), (2) Date Jan. 20, 2015,
PCT Pub. No. WO2014/012943, PCT Pub. Date Jan. 23, 2014.
Claims priority of application No. 12176697 (EP), filed on Jul. 17, 2012.
Prior Publication US 2015/0228403 A1, Aug. 13, 2015
Int. Cl. H01F 38/14 (2006.01); H01F 38/18 (2006.01); H04B 5/00 (2006.01)
CPC H01F 38/14 (2013.01) [H01F 38/18 (2013.01); H04B 5/0037 (2013.01); H01F 2038/143 (2013.01); H01F 2038/146 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system for contactless power and data transfer at high rotational speeds, comprising a stator flange and a rotor flange,
said stator flange and said rotor flange being configured to rotate relative to each other about an axis of rotation,
said rotor flange comprising a first rotor ridge forming an annular support surface, said first rotor ridge comprising an inner surface having a plurality of first magnetic core parts mounted thereon, said first magnetic core parts having an L-shaped radial cross section;
said stator flange comprising a first stator ridge forming an annular support surface, said first stator ridge comprising an outer surface having a plurality of second magnetic core parts mounted thereon, said second magnetic core parts having an L-shaped radial cross section;
at least part of said outer surface of said first stator ridge radially facing at least part of said inner surface of said first rotor ridge, said first and second magnetic core parts being positioned relative to each other such that the first and second magnetic core parts form at least part of a toroidal transformer for contactless power transfer;
said rotor flange comprising a second rotor ridge comprising at least a first transmission line supported by said second rotor ridge;
said stator flange comprising a second stator ridge at least a second transmission line supported by said second stator ridge;
a broadside of the first transmission line radially facing a broadside of the second transmission such that an electric field can be formed across the air gap between said first and second transmission line for contactless data transfer.