Iron-based soft magnet with nano coating

The utility model relates to an iron-based soft magnet with a nano coating, which comprises an annular magnetic sheet, the outer part of the annular magnetic sheet is provided with the nano coating, the inner side of the annular magnetic sheet is detachably provided with an inner framework, the outer side of the annular magnetic sheet is detachably provided with an outer framework, and a cushion layer is arranged between the inner wall of the annular magnetic sheet and the inner framework. And an annular connecting piece is arranged between the outer wall of the annular magnetic sheet and theouter framework. The soft magnet has the advantages that the soft magnet is compact in structure and high in stress strength, meanwhile, the nanometer coating is additionally arranged on the annular magnetic sheet, the hydrophobicity of the surface of the annular magnetic sheet is effectively improved, the outer surface of the magnetic sheet is prevented from being oxidized by outside water vapor,the service life of the w