Reinforced Seal Ring Layout to Prevent Rubber Through-Cracks

The reinforcement ring is segmented with through-holes that are strategically positioned and sized. These holes divide the reinforcement ring structure while maintaining overall integrity, allowing the elastic body part to bond through the holes without creating continuous crack paths. The segmentation approach improves adhesion by increasing bonding surface area while the careful design of hole distribution prevents crack propagation.

The elastic body part is designed with non-uniform thickness, creating local quality variations. The thickness is greater in regions adjacent to the through-holes of the reinforcement ring, providing localized reinforcement at critical stress points. This local thickening prevents crack initiation and propagation at the hole-rubber interface while maintaining flexibility in other regions.

The elastic body part features non-uniform thickness distribution with strategically thicker regions positioned at critical locations such as adjacent to reinforcement ring holes and at stress concentration points. This local quality approach maintains overall device compactness while providing localized reinforcement where cracks are most likely to initiate and propagate, thus preventing through-cracks without increasing overall device volume.

The design incorporates thicker rubber material regions in advance at locations where solvent swelling and shrinking would cause stress concentration. This beforehand cushioning creates a buffer zone that absorbs the mechanical stress from solvent attachment, preventing crack initiation in the thinner regions and maintaining reliability without significantly increasing overall device size.