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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 10629366 B1

PDFFull Text
Date of Patent:
Apr. 21, 2020

Filed:

Sep. 05, 2016

Magnetic shielding unit for wireless power transmission in magnetic resonance mode, and wireless power transmission module and electronic device comprising same

Applicant:

Amosense Co., Ltd., Cheonan-si, KR;

Inventors:

Dong Hoon Lee, Yongin-si, KR;

Sung Hyun Park, Suwon-si, KR;

Assignee:

Amosense Co., Ltd., Cheonan-si, KR;

Attorney:

Daly, Crowley Mofford & Durkee, LLP

Primary Examiner:

Daniel Kessie

Int. Cl.
CPC ...
H02J 50/12 (2016.01); H01F 27/36 (2006.01); C22C 45/02 (2006.01); B32B 15/04 (2006.01); C22C 33/00 (2006.01); H01F 27/00 (2006.01); C22C 38/02 (2006.01); C22C 38/12 (2006.01); H01F 27/28 (2006.01); C22C 38/16 (2006.01); H02J 50/70 (2016.01); H01F 1/153 (2006.01); H01F 38/14 (2006.01); H01F 27/34 (2006.01); H02J 7/02 (2016.01);
U.S. Cl.
CPC ...
H01F 27/365 (2013.01); B32B 15/04 (2013.01); C22C 33/003 (2013.01); C22C 38/02 (2013.01); C22C 38/12 (2013.01); C22C 38/16 (2013.01); C22C 45/02 (2013.01); H01F 1/15308 (2013.01); H01F 27/006 (2013.01); H01F 27/2823 (2013.01); H01F 27/2885 (2013.01); H01F 38/14 (2013.01); H02J 50/12 (2016.02); H02J 50/70 (2016.02); H01F 2027/348 (2013.01); H02J 7/025 (2013.01);
Abstract

A wireless power transmission module operable in magnetic resonance method including a radiator unit for wireless power transmission, and a magnetic field shielding unit, disposed on a side of the radiator unit, for preventing disturbance of transmission and reception of the radiator due to the conductor and improving radiator characteristics, by providing a magnetic field shielding layer which includes shredded Fe-based alloy fragments and a dielectric filling at least a part of gaps between shredded Fe-based alloy fragments and some adjacent ones of the fragments to reduce eddy currents, to improve flexibility of and reduce eddy currents in the magnetic field shielding unit. When a wireless power signal is transmitted and received in a magnetic resonance method, the influence of a magnetic field on components of s a mobile terminal or a user can be blocked. Interference with the transmission/reception of the power signal due to the conductor can be minimized or prevented. The radiator characteristics and wireless power transmission efficiency can be remarkably improved.

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