公开(公告)号：US20240372400A1

公开(公告)日：2024-11-07

申请号：US18280442

申请日：2022-03-07

Applicant: LG Electronics Inc.

Inventor： Kyunghwan KIM ,  Seonghun LEE ,  Hyoungseok KIM ,  Euisuk CHOI

IPC: H02J50/00 ,  H01F27/28 ,  H01F38/14 ,  H02J50/10 ,  H02J50/40 ,  H02J50/70

Abstract: A wireless power transfer device transmits wireless power to a wireless power reception device and comprises primary coils, transmitting wireless power by magnetically coupling to secondary coils of the wireless power reception device, and a shield protecting the wireless power transfer device from a magnetic field from at least one of the primary coils. The primary coils comprise: a first bottom coil and a second bottom coil not overlapping each other on a first plane; and a first top coil and a second top coil not overlapping each other on a second plane located above the first plane, wherein one side of the first top coil is located above the first bottom coil, the other side of the first top coil is located above the second bottom coil, and one side of the second top coil is located above the second bottom coil.