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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 9950636 B1

PDFFull Text
Date of Patent:
Apr. 24, 2018

Filed:

Sep. 28, 2015

Foreign matter detection device and method for wireless power supply device

Applicant:

Ihi Corporation, Tokyo, JP;

Inventors:

Hiroki Saito, Tokyo, JP;

Susumu Tokura, Tokyo, JP;

Assignee:

IHI CORPORATION, Tokyo, JP;

Attorney:

Volpe and Koenig, P.C.

Primary Examiner:

Sibin Chen

Int. Cl.
CPC ...
H01F 37/00 (2006.01); B60L 11/18 (2006.01); H02J 50/60 (2016.01); H02J 50/10 (2016.01); H01F 38/14 (2006.01); H01F 27/38 (2006.01); H01F 27/40 (2006.01); H02J 5/00 (2016.01); H02J 7/04 (2006.01); B60M 7/00 (2006.01); H02J 7/02 (2016.01);
U.S. Cl.
CPC ...
B60L 11/182 (2013.01); H01F 27/38 (2013.01); H01F 27/402 (2013.01); H01F 38/14 (2013.01); H02J 5/005 (2013.01); H02J 7/042 (2013.01); H02J 50/10 (2016.02); H02J 50/60 (2016.02); B60L 2270/147 (2013.01); B60M 7/003 (2013.01); H02J 7/025 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7072 (2013.01); Y02T 90/122 (2013.01); Y02T 90/14 (2013.01);
Abstract

A foreign matter detection device including a detection coil between a power transmitting coil and a power receiving coil, and a detection unit detecting an induced voltage V generated in the detection coil and detects, from this induced voltage, presence or absence of a conductive foreign matter between the power transmitting coil and the power receiving coil. The detection coil includes a continuous conductive wire where two loop portions are wound in mutually opposite directions. An area or a winding number of each loop portion or a direction connecting centroids of the two loop portions is set so that the induced voltage (i.e., a reference voltage) generated in the detection coil when no conductive foreign matters exist becomes 0 or a minimum.

Find Patent Forward Citations

Saito, Hiroki. (2018). Foreign matter detection device and method for wireless power supply device (U.S. Patent No. 9950636). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9950636

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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