RELEASE-TYPE ELECTROMAGNET DEVICE AND PRODUCTION METHOD THEREFOR

摘要

In a release type electromagnetic device according to the present invention, a yoke in which a bobbin, an electromagnetic coil, a transfer yoke, and a permanent magnet are contained in an inner space is configured by arranging a plunger pass-through side yoke body which is located on the first bobbin frame body side of the bobbin and has a through hole communicated with a through hole of the bobbin, by arranging central side yoke bodies each of which is bent from the plunger pass-through side yoke body to the permanent magnet side, and by arranging permanent magnet side yoke bodies each of which is bent from each of the central side yoke bodies to the center side of the through hole of the bobbin to come into contact with the permanent magnet and to form a yoke closing portion at both end surfaces.