Power generation switch

摘要

A power generation switch includes: parallel beams including at least one magnetostrictive rod made of a beam-shaped magnetostrictive material; a coil wound around the rod; a first connecting part connecting two beams in the parallel beams together, at first ends of the parallel beams; a second connecting part connecting the two beams together at second ends of the parallel beams; a field part that produces magnetic flux to pass through the two beams in the same direction; and an operating part operable by a user. The first connecting part is a non-displaced fixed end. The second connecting part is a free end for free oscillation. The operating part applies external force to the second connecting part to cause free oscillation of the parallel beams, thereby causing a positive axial force in one of the two beams and a negative axial force in the other one of the two beams.

主权项

1. A power generation switch that is driven by power generated by an inverse magnetostriction effect caused in a magnetostrictive element, the power generation switch comprising:
parallel beams at least one of which is a magnetostrictive rod made of a magnetostrictive material in a beam shape; a coil wound around the magnetostrictive rod; a first connecting part connecting, at respective first ends of the parallel beams, two beams included in the parallel beams to each other; a second connecting part connecting, at respective second ends of the parallel beams, the two beams included in the parallel beams to each other, the second ends being different from the first ends; a field part that produces magnetic flux to pass through the two beams in a same direction; and an operating part that is operated by a user, wherein the first connecting part is a fixed end that is not displaced, the second connecting part is a free end capable of free oscillation, and the operating part applies an external force to the second connecting part so as to cause free oscillation of the parallel beams, the free oscillation (i) causing a positive axial force in one of the two beams and (ii) causing a negative axial force in an other one of the two beams.