公开(公告)号：US20220238267A1

公开(公告)日：2022-07-28

申请号：US17614577

申请日：2020-04-07

Applicant: HITACHI HIGH-TECH CORPORATION

Inventor： Ryosuke HOSHI ,  Yasuaki AOYAMA ,  Satoru KANEKO ,  Hiroyuki KOBAYASHI ,  Takeshi TAMAKOSHI ,  Katsuhiro KAMBARA ,  Hiroshi WATANABE ,  Kuniaki ONIZAWA

IPC: H01F7/20 ,  H01F7/06 ,  H01F27/24 ,  H01F27/02 ,  H01F27/28

Abstract: A transport device and a transport method efficiently increase a thrust to suppress power consumption. The transport device has a first magnetic body on a side of a to-be-transported object, a magnetic circuit with a core consisting of a second magnetic body, and a winding wound around an outside of the core, and a drive circuit supplying a current to the winding of the magnetic circuit. The magnetic circuit has first and second magnetic circuits, and in a case where the first magnetic body is located on a side of the second magnetic circuit relative to a first predetermined position between the first magnetic circuit and the second magnetic circuit, the drive circuit supplies a current to a winding of the first magnetic circuit in such a manner to cause an electromagnetic repulsive force to be generated between the first magnetic body and the first magnetic circuit.