公开(公告)号：EP3157157A4

公开(公告)日：2018-01-31

申请号：EP14893361

申请日：2014-06-10

Applicant: LG ELECTRONICS INC

Inventor： HAHN SANGWOOK ,  YOO INSEOK ,  KIM TAEHYUN ,  HONG SUKHO ,  LEE BYUNGHWA

IPC: H02N15/00

CPC classification number: H02J7/025 ,  H02J7/0047 ,  H02J17/00 ,  H02J50/12 ,  H02J50/70 ,  H02J50/90 ,  H02N15/00

Abstract: A system for levitating a mobile terminal, according to an exemplary embodiment of the present invention, comprises: a levitation unit mounted on a rear surface of the mobile terminal; and a levitation module configured to generate an electromagnetic force to allow the levitation unit to levitate upward, wherein the levitation unit includes a mounting case attachably detachably coupled to the rear surface of the mobile terminal and a first permanent magnet seated on an inside of the mounting case, wherein the levitation module includes: a housing; a cover that covers the housing; a magnet module disposed in the housing to form an electromagnetic field for levitating the levitation unit; and a PCB that includes a control unit connected to the magnet module to control a current supplied to the magnet module, wherein the magnet module includes a plurality of electromagnets that generate an electromagnetic field for making a repulsive force act on the first permanent magnet, and a second permanent magnet that surrounds the exterior of the plurality of electromagnets and generates a magnetic field for allowing an attractive force to act on the first permanent magnet.