| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic drive mechanism which can raise the thrust of an oscillator arranged in the vacant space part between counterposed electromagnets. SOLUTION: This electromagnetic drive mechanism comprises an oscillator 4 equipped with a permanent magnet 3 and electromagnets 2 arranged in opposition across a vacant space part S to arrange the oscillator 4, and each electromagnet 2 comprises an E-type iron core 14 and a winding coil 15, and the vacant spaces (a) and (b) between the poles 16 at both ends on the side of a vacant space S and the central pole 17 and a permanent magnet 3 change in the longitudinal direction of an oscillator 4. As a result, the magnetic flux in the vacant space can be increased, and also the area of the vacant space can be increased, so the permeance increases, and even if input voltage is reduced, the efficiency and the power factor of the pump can be opposed, and the thrust of the oscillator 4 arranged in the vacant space between the electromagnets can be raised with power saving. |
