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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10672551 B1

PDFFull Text
Date of Patent:
Jun. 02, 2020

Filed:

Mar. 28, 2016

Non-contact power feeding coil and non-contact power feeding system

Applicant:

Fuji Corporation, Chiryu-shi, JP;

Inventors:

Masayuki Oki, Kosai, JP;

Shinji Takikawa, Nagoya, JP;

Takeshi Nomura, Chiryu, JP;

Takahiro Jindo, Anjo, JP;

Assignee:

FUJI CORPORATION, Chiryu-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Rexford N Barnie

Assistant Examiner:

Xuan Ly

Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 27/32 (2006.01); H01F 38/14 (2006.01); H02J 50/10 (2016.01); H02J 50/40 (2016.01); H02J 50/70 (2016.01); H01F 27/24 (2006.01); H01F 27/255 (2006.01); B60L 53/12 (2019.01); B60L 53/39 (2019.01); H05K 13/00 (2006.01);
U.S. Cl.
CPC ...
H01F 27/24 (2013.01); B60L 53/12 (2019.02); B60L 53/39 (2019.02); H01F 27/255 (2013.01); H01F 27/28 (2013.01); H01F 27/2823 (2013.01); H01F 27/2871 (2013.01); H01F 27/32 (2013.01); H01F 38/14 (2013.01); H02J 50/10 (2016.02); H02J 50/40 (2016.02); H02J 50/70 (2016.02); H05K 13/00 (2013.01);
Abstract

A power feeding coil that configures a non-contact power feeding system is provided. The power feeding coil is provided with a coil through which an AC current of a specific frequency flows, and a core that forms a section of a circulating magnetic path, which is interlinked with the coil. In the coil, a wire having an insulating covering is wound around a conductor, and a covering thickness of the insulating covering is set so that the influence of a proximity effect that occurs at the specific frequency between adjacent portions of the wire is a predetermined amount or less. According to this configuration, it is possible to freely adjust a separation distance between portions of the conductor by altering the covering thickness; and the occurrence of AC loss caused by a proximity effect may be appropriately suppressed.

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