公开(公告)号：US20240395454A1

公开(公告)日：2024-11-28

申请号：US18261957

申请日：2023-02-14

Applicant: Southeast University

Inventor： Ming CHENG ,  Wei QIN ,  Xinkai ZHU ,  Wei HUA ,  Zheng WANG ,  Sa ZHU ,  Zhiyuan XU

IPC: H01F27/34 ,  H01F27/24

Abstract: According to a magnetic core considering the skin effect of magnetic flux and a design method thereof, with a cross-section of a magnetic core through which magnetic flux flows as a reference surface, the shape of the cross-section of the magnetic core is designed according to the electromagnetic characteristics, temperature characteristics, magnetic flux amplitude and operating frequency of the magnetic core, and a closed or discontinuous air path is formed inside the magnetic core by stretching the reference surface along the path of the magnetic flux, thereby forming a magnetic core having a duct structure. When a high-frequency magnetic flux is introduced into the magnetic core, the magnetic core considering the skin effect of magnetic flux and the design method thereof can reduce the weight of the magnetic core, reduce the power loss and temperature rise of the magnetic core, and suppress the skin effect of the magnetic core.