Core-Shell Composite Filler for Thermal Conduction and Electrical Insulation

The patent applies composite materials by combining thermally conductive core particles (metal, ceramic, or carbon-based) with an insulating material coating to create a core-shell structure. This composite particle simultaneously provides thermal conduction through the core and electrical insulation through the coating, resolving the contradiction between thermal performance and electrical insulation for high voltage electronic devices.

The patent applies local quality by assigning different functional properties to different parts of the particle structure: the core provides thermal conduction while the shell provides electrical insulation. This spatial differentiation of functions allows the material to meet both thermal and electrical requirements simultaneously, enabling compatibility with high voltage and current electronic devices.

The patent applies parameter changes by carefully controlling the thickness and composition of the insulating coating layer. By optimizing these parameters, the coating provides sufficient electrical insulation while maintaining adequate thermal conduction performance, thus resolving the contradiction between electrical insulation and thermal conduction.

The patent uses composite materials with specific thermal and electrical properties for the coating layer. By selecting insulating materials with appropriate thermal conductivity and applying them in optimized thicknesses, the coating provides electrical insulation without significantly compromising thermal conduction performance.