To provide an electromagnetic reciprocating fluid device capable of discharging a fluid at a high efficiency.
In this electromagnetic reciprocating fluid device including a reciprocating member and a drive part driving and reciprocating the reciprocating member along a linear path, wherein fluid is sucked and discharged by the reciprocating motion of the reciprocating member, the drive part includes an armature 108 comprising a magnetic material fixed to the reciprocating member, a stator core 110 including a pair of magnetic pole parts 112 facing each other across the linear path of the armature and provided with a cutout part at a rectangular magnetic pole surface of the magnetic pole part, a solenoid coil 120 for generating a magnetic flux in the stator core, and a coil spring 124 being an elastic body biasing the armature in an opposite direction of the drawing direction of the armature. By providing the cutout part at the magnetic pole surface 112, magnetic attraction force for drawing the armature is controlled by changing a magnetic flux distribution and a magnetic flux density generated at the magnetic pole surface so that the armature is efficiently drawn.
UMITANI KAZUMASA
HOGUCHI KOSEI
| JPS58148655A | 1983-09-03 | |||
| JP2004316566A | 2004-11-11 | |||
| JP2010230014A | 2010-10-14 |
Yusuke Ebi