Patent ID: 9190233
Filing Date: 2015-11-17
Classification: H01H

Abstract:
1. A solenoid device comprising: at least one electromagnetic coil that generates a magnetic flux when the electromagnetic coil is energized; a yoke made of soft magnetic material, in which the magnetic flux flows; and a plurality of plungers, each of which includes at least a part made of soft magnetic material, and reciprocates when the electromagnetic coil is switched between energization and interruption of energization, wherein the number of the plurality of plungers is larger than the number of the electromagnetic coil, wherein the plurality of plungers are magnetically connected in parallel with each other via the yoke, wherein each plunger of the plurality of plungers reciprocates independently from each other, and wherein a whole of each one of the plurality of plungers is disposed on an outside of the electromagnetic coil.