Lens Drive Housing Capillary Gap Design

The gap between the cover and base is designed to function as a capillary structure, utilizing capillary action to rapidly draw the adhesive agent from the application location to the end portions of the gap. This capillary structure enables quick and uniform penetration of the adhesive agent throughout the bonding interface, significantly reducing penetration time while ensuring adequate bonding strength.

The invention optimizes the dimensions and geometry of the gap between the cover and base to enhance capillary action. By carefully controlling the gap width, length, and cross-sectional area variations along the gap, the adhesive agent is guided to penetrate rapidly and uniformly to all portions of the bonding interface, resolving the contradiction between penetration speed and bonding quality.

The gap structure is designed as a capillary channel that leverages surface tension and adhesive forces between the adhesive agent and the gap walls to drive rapid penetration. This capillary action ensures the adhesive agent reaches all end portions of the gap quickly and uniformly, achieving both high penetration speed and complete coverage for reliable bonding.

The invention varies the cross-sectional area of the gap along its length, creating a gradient structure that accelerates adhesive agent flow toward the end portions. By strategically designing the gap geometry in different dimensions, the adhesive agent is directed to penetrate rapidly and uniformly throughout the entire bonding interface, simultaneously improving speed and reliability.