Patent ID: 9631737
Date: 2017-04-25
CPC Classifications: F15B,F16K,H01F,Y10T

Claim:
1. A solenoid valve comprising a magnetic drive having a housing which is at least partly formed from an injection molding compound, the magnetic drive including a magnet coil having a winding, a magnet yoke such that injection molding compound covers the magnet coil and the magnet yoke all around except for pole faces of the yoke, and a movably mounted magnet armature which is arranged outside the magnet coil, the housing having a first section which encloses the magnet coil having the winding and the magnet yoke, and the housing having a second section which encloses at least most of the movably mounted magnet armature, wherein the second section includes a cavity for receiving the movably mounted magnet armature and the cavity has an opening on one side for inserting the magnet armature after injection molding of the housing has been completed, wherein the magnet armature includes two pole pieces and the housing includes an injection molded section in the first section, the injection molded section being bordered by the pole pieces and the winding of the magnet coil and filling the area bordered by the pole pieces and the winding, wherein a wall of the cavity has an inwardly facing raised portion extending from the injection molded section along an inner surface of the cavity, wherein the raised portion, serving as a flow aid, allows the injection molded section to be produced between the winding of the magnet coil and the pole pieces relatively centrally within the housing.