COIL FOR NONCONTACT POWER SUPPLY AND NONCONTACT POWER SUPPLY SYSTEM

WIPO Patent Application WO/2017/051555

A1

This coil for a noncontact power supply is a power supply coil (3) that is provided with a winding (35) in which an alternating current of a specific frequency flows and a core (31) forming a part of a loop magnetic path linked with the winding and constitutes a noncontact power supply system (1), wherein the winding is formed by winding wire material (36) having an insulating coating (38) around a conductor (37), and the coating thickness (Ti) for the insulating coating is set so as to make the effects of the proximity effect arising mutually between adjacent wire material at the specific frequency a prescribed amount or less. Thus, the spacing distance between the conductors can be freely adjusted by changing the coating thickness, and alternating current loss arising because of the proximity effect is appropriately suppressed.

OKI MASAYUKI (JP)
TAKIKAWA SHINJI (JP)
NOMURA TAKESHI (JP)
JINDO TAKAHIRO (JP)

PCT/JP2016/059941

March 30, 2017

March 28, 2016

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FUJI MACHINE MFG (JP)

H01F38/14; H01F27/28; H01F27/32

JP2015128144A	2015-07-09
JP2005108654A	2005-04-21
JP2008120239A	2008-05-29
JP2011176949A	2011-09-08
JP2014225960A	2014-12-04
JP2013070613A	2013-04-18

TAKAHISA IMAJO: "New Technologies for Energy/Energy Riyo no Koritsuka/Reduction method of power transmission loss", OYO BUTSURI, vol. 63, no. 8, August 1994 (1994-08-01), pages 824 - 829, XP009505367
TAKAYUKI KASHIWAGI ET AL.: "Study of the Loss by the Proximity Effect of the Conductor in Contactless Power Supply Coils", RTRI REPORT, vol. 27, no. 7, July 2013 (2013-07-01), pages 29 - 34, XP009505364
See also references of EP 3355326A4

KOBAYASHI Osamu et al. (JP)

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