Convex Insulating Sheet for Disk Drive PCB Vibration Damping

The patent changes the physical parameters of a flat insulating sheet by forming convex portions with specific geometric characteristics (height, width, spacing) to achieve vibration damping effects. This transforms a simple flat structure into a functional damping structure through parameter modification, avoiding the need for expensive foam materials while maintaining effective vibration suppression.

The patent introduces convex portions with curved surfaces into the flat insulating sheet. These curved geometric features act as vibration-damping elements by distributing and absorbing mechanical vibrations, providing foam-like damping performance using a simple modified sheet structure rather than expensive foam material.

The patent segments the flat insulating sheet by forming multiple convex portions distributed across its surface. This segmentation creates multiple localized damping zones that collectively provide comprehensive vibration suppression, transforming a simple flat sheet into an effective damping structure while maintaining cost-effectiveness.

The patent transitions from a two-dimensional flat insulating sheet to a three-dimensional structure by forming convex portions that protrude from the sheet surface. This dimensional change adds vibration-damping capability in the vertical dimension, enabling the simple sheet to achieve foam-like damping performance without increasing material cost.

The patent makes the insulating sheet multi-functional by integrating both electrical insulation and vibration damping functions into a single component. The convex portions provide damping while the material itself provides insulation, eliminating the need for separate damping and insulation components and achieving effective PCB vibration suppression at minimal cost.

The insulating sheet with convex portions serves itself by providing vibration damping functionality inherent to its own structure. The convex portions act as built-in damping elements that suppress PCB vibrations directly, making the insulator self-sufficient for both insulation and damping purposes without requiring additional damping components.