IMPROVED LINEAR ACTUATOR

摘要

The invention concerns a linear uniphase polarised electromagnetic actuator comprising a coiled stator (1) and at least one part (2) mobile in the direction OX, with a useful travel Xc, comprising a part mobile with the current powering the coil, in a direction depending on the current sign, comprising a yoke (12) in soft magnetic material and at least one magnet (12) coupled with said yoke, the magnet(s) being partially set inside a cavity of the mobile yoke on the side of the stator poles, at a depth e such that 0.1L < e < 0.9L, E being the distance measured perpendicularly to OX between the stator poles and the cavity end wall.