MAGNETIC SHEET AND WIRELESS POWER MODULE COMPRISING SAME

A magnetic sheet according to an embodiment of the present invention comprises: a first soft magnetic layer including a first surface and a second surface opposite to the first surface; a first resin layer disposed on the first surface of the first soft magnetic layer and having a first viscosity; a...

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Bibliographic Details
Main Authors CHOI, Dong Hyeok, BAE, Seok, SOHN, In Seong
Format Patent
LanguageEnglish
French
Korean
Published 05.12.2019
Subjects
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Summary:A magnetic sheet according to an embodiment of the present invention comprises: a first soft magnetic layer including a first surface and a second surface opposite to the first surface; a first resin layer disposed on the first surface of the first soft magnetic layer and having a first viscosity; a second soft magnetic layer disposed on the first resin layer; and a second resin layer disposed between the first soft magnetic layer and the first resin layer and having a second viscosity different from the first viscosity, wherein the second resin layer comprises a plurality of magnetic particles, the first soft magnetic layer includes a plurality of crack areas propagated from the first surface toward the second surface, and a part of the second resin layer is disposed in the plurality of crack areas. Une feuille magnétique selon un mode de réalisation de la présente invention comprend : une première couche magnétique douce comprenant une première surface et une seconde surface opposée à la première surface; une première couche de résine disposée sur la première surface de la première couche magnétique douce et ayant une première viscosité; une seconde couche magnétique douce disposée sur la première couche de résine; et une seconde couche de résine disposée entre la première couche magnétique douce et la première couche de résine et ayant une seconde viscosité différente de la première viscosité, la seconde couche de résine comprenant une pluralité de particules magnétiques, la première couche magnétique douce comprenant une pluralité de zones de fissure se propageant à partir de la première surface vers la seconde surface, et une partie de la seconde couche de résine étant disposée dans la pluralité de zones de fissure. 본 발명의 한 실시예에 따른 자성시트는 제1 면 및 상기 제1 면과 대향하는 제2 면을 포함하는 제1 연자성층; 상기 제1 연자성층의 상기 제1 면 상에 배치되고 제1 점도를 갖는 제1 수지층; 상기 제1 수지층 상에 배치된 제2 연자성층; 및 상기 제1 연자성층과 상기 제1 수지층 사이에 배치되고 상기 제1 점도와 상이한 제2 점도를 갖는 제2 수지층;을 포함하고, 상기 제2 수지층은 복수의 자성입자를 포함하며, 제 1 연자성층은 상기 제 1면에서부터 상기 제 2면을 향하여 전파된 복수의 크랙영역을 포함하고, 상기 제2 수지층의 일부는 상기 복수의 크랙 영역 내에 배치된다.
Bibliography:Application Number: WO2019KR05761