MAGNETIC SHIELDING SHEET MANUFACTURING METHOD THEREOF AND MAGNET TYPE WIRELESS POWER RECEIVING DEVICE USING THE SAME

• Main Authors: LEE TAI HOON, KANG JONG SEOG, JANG KEUN SUNG, KIM YOUNG JUN, JU SEONG NAM, JEON JAE HO
• Format: Patent
• Language: English; Korean
• Published: 08.02.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION; INDUCTANCES; MAGNETS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSFORMERS

The present invention is to provide a magnetic shielding sheet and a manufacturing method thereof in which wireless charging efficiency and heat dissipation characteristics are improved by controlling a magnetic force value. In a magnetic shielding sheet according to an embodiment of the present invention, in a region facing a magnet line disposed on an antenna module, a peeling part is provided in which at least one layer of a nano-ribbon sheet is peeled off from the uppermost layer, wherein the uppermost layer means the outermost layer on the opposite side of the layer facing the magnet line. 본 발명의 일 실시 예에 따른 자기장 차폐시트는 안테나 모듈 상에 배치되는 마그넷 라인과 마주보게 되는 영역에 대해 상기 나노 리본시트가 최상층-상기 마그넷 라인과 마주보게 되는 층의 반대측 가장 바깥쪽 층을 의미함-부터 적어도 1층 이상 박리된 박리부가 마련된 것을 특징으로 한다.