Insulated Heating Core for Metal Mascara Brush

The patent introduces an insulating structure as an intermediary between the heating core and the metal brush head. This insulating layer prevents direct electrical contact that would cause short-circuiting, while still allowing thermal energy to transfer from the heating core to the brush head for effective heating. The intermediary resolves the contradiction by decoupling the electrical and thermal interaction pathways.

The patent segments the contact interface between the heating core and metal brush head into distinct functional zones: an electrical insulation layer that prevents short-circuiting and a thermal conduction path that enables heating. This segmentation allows the system to simultaneously achieve reliable electrical isolation and effective thermal transfer, resolving the contradiction between heating function and circuit reliability.

The patent merges the heating function with the existing brush head structure by integrating the heating core directly into the brush head assembly. This combination eliminates the need for separate external heating devices, reducing overall system complexity while enabling rapid curing of mascara during the brushing process. The merged structure achieves both productivity improvement and complexity management.

The patent creates a multi-functional brush head that simultaneously performs mechanical brushing and thermal heating functions. The brush head serves dual purposes: applying mascara mechanically through bristles and accelerating curing through integrated heating elements. This universality reduces the need for additional separate devices, managing structural complexity while enhancing productivity.