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Patent Searching and Data


Title:
COIL DEVICE AND WIRELESS CHARGING DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2019/022438
Kind Code:
A1
Abstract:
The present embodiment relates to a coil device and a wireless charging device comprising the same. The coil device according to the present embodiment comprises: a coil which is wound so as to form a hollow portion; and a shielding member which includes a bottom portion on which the coil is disposed, an inner diameter portion which corresponds to the shape of the hollow portion, and an outer diameter portion which corresponds to an outer circumferential shape of the coil. The height of the inner diameter portion protruding from the bottom portion on which the coil is disposed may have a height of 0 to 1.5 times the height of the coil. The inductance of the coil may range from 9.2 uH to 12.26 uH.

Inventors:
LEEM SUNG HYUN (KR)
Application Number:
KR2018/008182
Publication Date:
January 31, 2019
Filing Date:
July 19, 2018
Export Citation:
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Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H01F27/28; H01F1/03; H01F38/14; H02J50/12; H02J50/70
Foreign References:
JP2014027880A2014-02-06
KR20160055004A2016-05-17
KR20150115271A2015-10-14
KR20120135737A2012-12-17
US9647483B12017-05-09
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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