Oscillating drive for use in alternating current field, has permanent magnetic core with permanent magnets, where effective pole surface of movable core has same permanent magnet polarity in direction of respective active poles of magnets

摘要

The drive has a permanent magnetic core with two permanent magnets (2), where the effective pole surface of the movable core has the same permanent magnet polarity in the direction of the respective active poles (3a, 3b) of the magnets. The magnets are located at two opposite sides of the core, and are positioned homopolar to each other, where the direction of magnetization of the magnets corresponds to the direction of electromagnetic field.