1results about How to "Cause failure" patented technology

An electromagnetic device belongs to the technical field of low-voltage apparatuses. Comprising a frame, a coil framework and a coil, the coil is wound on the coil framework, the coil framework is contained in the frame, the frame axially limits the coil framework through cooperation of a top plate and a bottom plate, the side, facing the top plate, of the coil framework is provided with a top disc, and the side, facing the bottom plate, of the coil framework is provided with a bottom disc. A positioning piece for preventing the coil framework from rotating is arranged between the top disc and the top plate, an isolation area is arranged on the coil framework, the isolation area is arranged on the top disc, and the edge of the isolation area extends out of the top plate, or the isolation area is arranged on the bottom disc, and the edge of the isolation area extends out of the bottom plate. The side face, facing the coil, of the isolation area is provided with a wire groove for wiring of outgoing lines of the coil. The coil framework has the advantages that on the basis of preventing the coil framework from rotating relative to the framework, the isolation area is arranged at the position of the coil outgoing line so as to effectively guarantee the distance between the outgoing line and the framework, and product miniaturization is facilitated while the working reliability is improved.