公开(公告)号：US20220385174A1

公开(公告)日：2022-12-01

申请号：US17471920

申请日：2021-09-10

Applicant: SOLUM CO., LTD.

Inventor： Chang Yong Kwon ,  Dong Kyun RYU ,  Yun Sic BANG

IPC: H02M1/42 ,  H02M7/06 ,  H02M7/00 ,  H01F27/28 ,  H01F27/02

Abstract: Provided is a coil structure including an inductor coil having a self-bonding wire structure and including a central hole, a detection coil electromagnetically coupled to the inductor coil, a support unit surrounding at least a portion of an outer periphery of the inductor coil, and a housing including an upper magnetic body and a lower magnetic body facing each other in a vertical direction with the inductor coil therebetween to form an inner space in which the inductor coil and the detection coil are provided, the upper magnetic body and the lower magnetic body each including a protrusion inserted into the central hole of the inductor coil.