公开(公告)号：US20200099279A1

公开(公告)日：2020-03-26

申请号：US16466530

申请日：2017-12-01

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Eui Chun LEE ,  Soon O KWON ,  Ho Young LEE ,  Su Woong LEE ,  Kang Won LEE

IPC: H02K15/04 ,  H01F27/28

Abstract: Disclosed is a method for manufacturing an MSO coil, comprising: a pressing step of forming a bent surface on a part of a unit coil layer, which has a ring shape such that both ends thereof face each other, thereby endowing both ends of the unit coil layer with a height difference; a fixing step of connecting and fixing a plurality of unit coil layers to each other, each unit coil layer having the bent surface formed thereon, such that the first end of both ends of a unit coil layer having the bent surface formed thereon contacts the second end of both ends of another unit coil layer having the bent surface formed thereon; and a bonding step of bonding connection parts defined by contact of the first and second ends of each of the plurality of unit coil layers that are connected and fixed to each other.