Preparation process of wireless charging application shielding sheet and shielding sheet

• Main Authors: GUO QINGWEN, XU KEXIN, WU CHANGHE, XIONG MING, MA FEI, SHI HAITAO, HU HUIXIN
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2018
• Subjects: 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; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses a preparation process of a wireless charging application shielding sheet. The wireless charging application shielding sheet comprises at least one longitudinally superposed shielding layer, wherein each shielding layer is formed by transversely splicing at least one soft magnetic shielding unit. The preparation process comprises the following steps: selecting soft magneticmaterials, and performing winding and heat treatment on the soft magnetic materials sequentially to obtain a substrate with two exposed surfaces; coating one exposed surface of the substrate with a double-sided adhesive tape, and cutting and vibrating the other exposed surface of the substrate by combining energy wire cutting and acoustic wave vibration to decompose the substrate into a pluralityof thin sheets in uniform shapes and certain size and obtain a soft magnetic shielding unit. The invention further discloses the wireless charging application shielding sheet. The wireless charging application shielding sheet