Lens Module Bonding Structure for Miniaturized Camera Stability

The patent transforms the bonding interface from a simple flat surface to a three-dimensional uneven surface with grooves and protrusions. The first bonding face of the lens barrel and the second bonding face of the fixing component feature complementary grooves and protrusions that interlock, converting a two-dimensional bonding problem into a three-dimensional mechanical interlocking structure. This dimensional transformation significantly increases the effective bonding area and strength without increasing the overall module size.

The bonding surfaces are segmented into multiple features including grooves, protrusions, and bevel faces rather than being continuous flat surfaces. This segmentation creates multiple discrete bonding zones that distribute stress and increase the total bonding interface area. The segmented structure allows for better glue penetration and adhesion throughout the bonding interface.

By creating uneven bonding faces with grooves and protrusions in three dimensions, the patent increases the effective bonding area beyond what would be available on a flat surface of the same footprint. This dimensional enhancement provides more surface area for adhesive bonding while maintaining the compact overall size of the camera module, thereby improving bonding stability without compromising miniaturization.

The bonding structure combines mechanical interlocking features (grooves and protrusions) with adhesive bonding to create a composite bonding system. The grooves and protrusions provide mechanical retention while the glue fills the spaces and creates chemical adhesion, resulting in a composite bonding mechanism that enhances stability beyond what either method could achieve alone in a miniaturized context.