Bistable solenoid valve for a fluid system, a solenoid valve - device and method for switching of the solenoid valve

摘要

The present invention relates to a bistable solenoid valve (1) for a fluid system, comprising:a in an axial direction (a) adjustable armature (7), a first core (12), a second core (14), a permanent magnet means (16) for the formation of a first permanent magnet field (pm1), which, by way of a magnetic yoke (20, 21), the first core (12) and the armature (7), and a second magnetic field (pm1), which, by way of the magnetic yoke (20, 21), the second core (14) and the armature (7) runs,the armature (7) with two bistable armature positions (i, ii) to the plant, in each case on one of the cores (12, 14) under the formation of an air gap (22) to the other core (14, 12) is designed. A first and second solenoid means (18) serves for the formation of a first and second electromagnet field (em1), which via the armature (7), the magnetic yoke (20) and in each case one of the cores (12) run.In this case, it is provided that the permanent magnet means (16) in the radial direction relative to the axial direction (a) is magnetised.Preferably, for the two switching operations between the armature positions (i, ii), each of the two electromagnetic or solenoid devices (18, 19) is supplied with current.