Title:
MAGNET HOLDER INCLUDING A COMBINATION OF A PERMANENT MAGNET AND AN ELECTROMAGNET
Document Type and Number:
WIPO Patent Application WO/2012/039548
Kind Code:
A1
Abstract:
The present invention relates to a magnet holder, including: a permanent magnet; a pole piece coupling to one of the N and S poles of the permanent magnet, and having a holding surface; a magnetized material having an end surface contacting the pole piece; a coil surrounding the magnetized material; and a control device controlling electrical current flowing through the coil to control the magnetization of the magnetized material. According to the present invention, optimal holding force can be applied to a unit area, and the magnet holder can be conveniently expanded to a module or be miniaturized according to the size of the interior of a device on which the magnet holder is installed, and can be widely applied to various fields such as lifts, chucks, locking devices, application machines, and robots.
Inventors:
CHOI, Tae Kwang (#502-302, Gwangmyeong Yeoksekwon Humancia1389 Soha-dong, Gwangmyeong-si, Gyeonggi-do 423-050, 423-050, KR)
Application Number:
KR2011/005627
Publication Date:
March 29, 2012
Filing Date:
July 29, 2011
Export Citation:
Assignee:
CHOI, Tae Kwang (#502-302, Gwangmyeong Yeoksekwon Humancia1389 Soha-dong, Gwangmyeong-si, Gyeonggi-do 423-050, 423-050, KR)
International Classes:
B23Q3/15; B23Q3/154; H01F7/02
Attorney, Agent or Firm:
EZ INTERNATIONAL PATENT & TRADEMARK LAW OFFICE (Suite 302~303, KCC Welltz Valley470-8 Gasan-dong, Geumcheon-gu, Seoul 153-803, 153-803, KR)
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