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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 10218186 B1

PDFFull Text
Date of Patent:
Feb. 26, 2019

Filed:

Dec. 21, 2015

Power feeding device and non-contact power transmission device

Applicant:

Tdk Corporation, Tokyo, JP;

Inventor:

Takashi Urano, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Hal Kaplan

Assistant Examiner:

Toan Vu

Int. Cl.
CPC ...
H01F 27/42 (2006.01); H01F 37/00 (2006.01); H01F 38/00 (2006.01); H02J 5/00 (2016.01); H02J 50/90 (2016.01); H02J 50/10 (2016.01); B60L 11/18 (2006.01); H01F 38/14 (2006.01); H02J 7/02 (2016.01); H02J 50/40 (2016.01);
U.S. Cl.
CPC ...
H02J 5/005 (2013.01); B60L 11/182 (2013.01); B60L 11/1831 (2013.01); B60L 11/1837 (2013.01); H01F 38/14 (2013.01); H02J 50/10 (2016.02); H02J 50/90 (2016.02); H02J 7/025 (2013.01); H02J 50/40 (2016.02); Y02T 10/7005 (2013.01); Y02T 10/7072 (2013.01); Y02T 90/121 (2013.01); Y02T 90/122 (2013.01); Y02T 90/125 (2013.01); Y02T 90/128 (2013.01); Y02T 90/14 (2013.01);
Abstract

Power feeding device and non-contact power transmission device which are capable of maintaining high power transmission efficiency even if any displacement occurs in relative positions of each power feeding coil among plurality of power feeding coils and power receiving coil are provided. Power feeding device includes power feeding coil unit which includes magnetic body unit in which at least three magnetic bodies are arranged to be spaced apart in first direction, and plurality of power feeding coils each formed of wire wound around at least two magnetic bodies in magnetic body unit, and plurality of power feeding coils, which are located adjacently in the first direction, are configured such that wires of the plurality of power feeding coils are wound in common around one or more magnetic bodies, number of which is less than number of magnetic bodies around which wires of the respective power feeding coils and are wound.

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