Low profile electromagnetic linear motion device

摘要

What is disclosed is an electromagnetic linear motion device having a pair of electromagnetic units mounted in spaced parallel position with a permanent magnetic armature between them. A gap is maintained between the units which is sufficiently small to permit most of the magnetic lines of flux generated by the units to pass along upper and lower plates forming each unit. The gap is sufficiently small, however, to prevent the magnetic cores of each unit from saturating and reducing the force generated by the device. The novel arrangement of the electric coils within each unit permits additional turns to be added for increasing the force generated by the device without increasing overall thickness.