Electronic Device Gasket With Radial Protrusions for Water-Stopping
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Solution Overview
Problem
Existing gaskets, such as the X-ring, are not stably held between two members due to recesses, leading to potential detachment during attachment or removal, which affects water-stopping performance.
Innovation Solution
A gasket design with radially extending protrusions that fit into a ring-shaped attachment groove, ensuring stable attachment and preventing detachment by distributing contact force uniformly and minimizing frictional resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gasket with recesses is used to achieve water-stopping performance, then sealing capability is improved, but the gasket becomes unstable and may detach during attachment or removal
Solution Approach 1:
The gasket is divided into multiple protrusions (first protrusion and second protrusions) that are distributed around the circumference. Each protrusion independently contacts the attachment groove or side wall, creating multiple stable contact points that prevent detachment while maintaining sealing capability through the segmented structure.
Solution Approach 2:
The gasket structure transitions from a simple ring with recesses to a three-dimensional configuration with protrusions extending radially inward and outward. This dimensional change creates contact points in multiple spatial dimensions (radial, axial, and circumferential), providing stable holding while allowing attachment and removal operations.
2Stability of the object's composition
If protrusions are added to the gasket to improve stability, then attachment stability is improved, but the complexity of the gasket structure increases
Solution Approach 1:
The protrusions are integrated directly into the gasket body as a single continuous structure rather than separate components. The first protrusion and second protrusions are formed as one piece with the base portion, combining multiple functional elements (sealing and stabilizing) into a unified structure that reduces overall complexity.
Solution Approach 2:
The protrusions serve multiple functions simultaneously: they provide stable attachment by contacting the attachment groove and side wall, distribute contact pressure uniformly across the gasket, and maintain water-stopping performance. This multi-functionality reduces the need for additional separate components.
Data Source
AI summary
An electronic device of the present invention includes: a stacked body including at least one columnar stacked unit that is stacked in a first direction and accommodates an electronic component; a lid member attached to an end-portion stacked unit provided at an end portion in the first direction of the stacked unit, and having a top wall portion and a side wall portion extending from a peripheral edge of the top wall portion; and a ring-shaped gasket attached between the end-portion stacked unit and the lid member, in which a ring-shaped attachment groove for accommodating the gasket is formed on an outer peripheral surface of the end-portion stacked unit, the attachment groove has a first surface on the lid member side in the first direction, a second surface on a side opposite to the first surface in the first direction.