Coil assembly in electromagnetic switch

The utility model provides a coil assembly in an electromagnetic switch, belonging to the technical field of switches. The utility model provides a solution for the problem that the radiating performance of coil assemblies in existing electromagnetic switches is unsatisfactory. The coil assembly in the electromagnetic switch comprises a copper tube and a tubular coil support sleeved on the outer side of the copper tube, wherein a holding coil is wound on the coil support; both head and tail ends of the holding coil axially extend out of the coil bracket; a pull-in coil with a waveform segment, located outside the holding coil, is wound on the coil support circumferentially; wave surface of the waveform segment is clung to the outer side of the holding coil; and both head and tail ends of the pull-in coil axially extend out of the coil bracket. The coil assembly in the electromagnetic switch has the advantages of good radiating performance and the like.