| 摘要 |
A manipulationproof electromagnet arrangement for operating a switching device, in particular a coupling in an electronic locking cylinder, having an electromagnet which has at least one coil and one armature which can be moved by means of the coil from a rest position in an axial direction to a switching position, with the electromagnet arrangement having magnetic security means which respond to an external magnetic field, which originates from a manipulation location outside the electromagnet arrangement, such that any movement of the armature to the switching position is constrained, wherein the magnetic security means are arranged in a region between that end of the armature which faces the switching position in the rest position, and the manipulation location.
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