Honeycomb Ceiling Fan Blade Weight Reduction

The patent uses a composite structure combining carbon fiber material (providing strength and lightness) with molding pulp material (providing structural form and recyclability). This composite approach resolves the contradiction by integrating the advantages of both materials: carbon fiber reduces weight while maintaining strength, and molding pulp provides a recyclable, environmentally friendly matrix that can be processed and reused after damage.

The patent employs a hollow shell structure with internal cavity for the blade main body, creating a porous/lightweight configuration. This hollow design significantly reduces the weight of the fan blade while maintaining structural integrity through the strategic placement of the carbon fiber inner core and the molded pulp shell, which together provide necessary strength without the weight of solid composite plates.

The patent divides the fan blade into distinct functional segments: a carbon fiber inner core layer providing structural strength, a molding pulp blade main body providing aerodynamic form, and separate protective covering layers. This segmentation allows each component to be manufactured and processed independently, reducing material waste during assembly and enabling recyclability of individual parts, particularly the molding pulp components which can be reused after damage.

The patent design facilitates the recovery and reuse of materials, particularly the molding pulp blade main body, which can be recycled and reused after damage occurs. The detachable connecting pieces and modular structure enable easy disassembly and recovery of components for recycling, reducing material waste compared to solid composite plates that cannot be recycled and must be discarded entirely after damage.

The patent segments the fan blade into multiple detachable components including a carbon fiber inner core, a molding pulp blade main body, protective covering layers, and detachable connecting pieces. This modular segmentation enables recyclability by allowing individual components to be separated, recovered, and reused after damage, while the overall assembly remains relatively simple to manufacture through standardized connection interfaces.

The patent explicitly designs for recyclability through the use of molding pulp material for the blade main body, which can be recovered and reused after damage occurs. The detachable connecting pieces and modular structure facilitate the recovery process, enabling the blade components to be recycled and reused rather than discarded, thereby improving adaptability and versatility while maintaining reasonable manufacturing simplicity.