▎ 摘　　要

NOVELTY - The utility model claims a high temperature resistant nanocrystalline magnetic core, comprising a protective shell, set as a circular structure, the inner side is an annular mounting groove, the inner side of the mounting groove is provided with a magnetic core main body; a radiating part, comprising a radiating cavity arranged around the protective shell; the inner side of the radiating cavity is provided with a graphene plate protruding out of the radiating cavity and propped against the magnetic core main body; a locking part, comprising screw thread hole set around the protective shell, the inner side of the screw thread hole is penetrated with a fastening screw against the magnetic core main body, the graphene plate has excellent thermal conductivity and heat dissipation, it can quickly absorb the heat on the magnetic core main body, and timely evacuees to the radiating cavity, then the heat in the radiating cavity is naturally dispersed by the first radiating hole, so as to quickly radiating the magnetic core main body, and the pushing spring makes the graphene plate and the magnetic core main body can be tightly contact, so as to prevent the surface of the contact loosening and gap and reduce the heat conducting effect.