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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 10840014 B1

PDFFull Text
Date of Patent:
Nov. 17, 2020

Filed:

Jul. 25, 2018

Coil unit, and power transmitting device, power receiving device and wireless power transmission system using the coil unit

Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Mitsunari Suzuki, Tokyo, JP;

Kota Arasaki, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:

Young Law Firm, P.C.

Primary Examiner:

Michael R Fin

Int. Cl.
CPC ...
H01F 38/14 (2006.01); H02J 50/10 (2016.01); H02J 7/02 (2016.01); H02J 50/70 (2016.01); H05K 7/20 (2006.01); H01F 27/36 (2006.01); H04B 5/00 (2006.01); H02J 50/80 (2016.01); H01F 27/02 (2006.01); H01F 27/40 (2006.01); H02J 50/12 (2016.01); H02J 5/00 (2016.01); H01F 3/10 (2006.01);
U.S. Cl.
CPC ...
H01F 38/14 (2013.01); H01F 27/02 (2013.01); H01F 27/36 (2013.01); H01F 27/367 (2013.01); H01F 27/40 (2013.01); H02J 7/025 (2013.01); H02J 50/10 (2016.02); H02J 50/12 (2016.02); H02J 50/70 (2016.02); H02J 50/80 (2016.02); H04B 5/0075 (2013.01); H05K 7/20 (2013.01); H01F 2003/106 (2013.01); H02J 5/005 (2013.01);
Abstract

Disclosed herein is a coil unit that includes a coil formed by spirally winding a conductive wire, a capacitor electrically connected to the coil, a magnetic member covering the coil in an axial direction of the coil, a first metal shield covering the coil with the magnetic member interposed therebetween, and a second metal shield disposed between the magnetic member and the first metal shield so as to form a space for housing the capacitor. The second metal shield is disposed so as to be thermally connected to the first metal shield. An outer dimension of the second metal shield as viewed in the axial direction of the coil is equal to or smaller than an outer dimension of the magnetic member.

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