Camera Module Guide Groove Reinforcement for Vibration Stability

The patent extracts the load-bearing function from the resin mold by introducing separate metallic reinforcing inserts. These inserts are selectively positioned in guide grooves and rolling portions to bear mechanical loads and resist deformation, while the resin mold retains its functions of providing structural form and electrical insulation. This separation allows the structure to support heavy lenses without the entire housing needing to be made of heavy metal.

The patent applies local quality enhancement by placing metallic reinforcing inserts only in specific critical areas where strength is needed, such as guide grooves and rolling portions, rather than making the entire housing from metal. This localized reinforcement reduces overall weight while providing sufficient strength to support high-magnification lenses and resist vibration-induced deformation.

The patent creates a composite structure where the resin mold maintains its manufacturing advantages (ease of molding, electrical insulation, cost-effectiveness) while metallic reinforcing inserts provide the missing impact resistance and structural strength. The inserts are embedded into the resin mold during the molding process, creating a unified composite component that combines the benefits of both materials.

The patent employs asymmetric material distribution by using different materials (resin and metal) in different regions of the same component. The resin forms the bulk structure for ease of manufacture, while metallic inserts are strategically placed in asymmetric patterns at critical stress points to provide targeted reinforcement without uniformly increasing weight or complexity.