Electrical solenoid

摘要

The invention relates to an electrical solenoid having a pole which ends in a cone and having a tubular yoke, which is opposite said pole, for holding an essentially cylindrical armature, in the case of which the cone is connected to the yoke by means of a material which cannot be magnetised. In order to be able to produce such a magnetic path for electrical solenoids easily by dispensing with the previously normal hollowing out (turning out) and external turning with the clamping processes required for this purpose, it is proposed to insert between the cone 2 and the yoke 5 a ring 5 which secures their separation and consists of material which cannot be magnetised, and to solder the cone, ring and yoke to one another. In this case, a thin-strip tube 6, which consists of material which cannot be magnetised, is pushed into the yoke, ring and cone, before soldering, in order to centre them. <IMAGE>