Annular Ring With Concave Notch For Waterproof Sealing
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Solution Overview
Problem
Traditional O-rings often fail to provide a reliable waterproof seal due to variations in assembly methods, leading to water penetration into electronic products.
Innovation Solution
An annular ring with a concave notch or slice-shaped cross-section that fits snugly over a protruded edge, providing a secure fit and enhanced friction through strip-shaped protrusions, ensuring consistent waterproof performance regardless of assembly variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional O-ring is pushed inwards to the bottom of a groove to achieve waterproof sealing, then waterproof function is improved, but assembly consistency deteriorates because different persons or machines assemble differently, causing the O-ring to not be completely pushed to the bottom
Solution Approach 1:
The invention inverts the traditional sealing approach by moving from a groove-based containment structure to a protrusion-based positive engagement structure. The annular ring with convex protrusions engages with corresponding concave grooves on the housing, ensuring the sealing surface is pushed forward to the protruded edge rather than relying on the O-ring being pushed to the bottom of a groove. This inversion of the sealing mechanism ensures consistent waterproof performance regardless of assembly variations.
Solution Approach 2:
The annular ring structure incorporates self-aligning features where the convex protrusions automatically engage with the concave grooves during assembly. The design includes self-positioning mechanisms that guide the annular ring into the correct position without requiring precise manual placement or complex assembly tools, enabling the structure to self-correct assembly variations and maintain consistent sealing.
2Ease of operation
If the O-ring is not completely pushed to the bottom of the groove during assembly, then assembly ease is improved, but waterproof function deteriorates because part of the O-ring does not attach to the protruded edge
Solution Approach 1:
The invention reverses the sealing mechanism from groove-based containment to protrusion-based positive engagement. The annular ring's convex protrusions engage with concave grooves on the housing, ensuring the sealing surface is pushed forward to the protruded edge. This inversion eliminates the problem of incomplete engagement because the protrusion structure provides positive mechanical engagement that cannot be compromised by insufficient pushing force.
Solution Approach 2:
The annular ring features asymmetric cross-sectional geometry with convex protrusions on one side and a sealing surface on the other. This asymmetric design creates a directional engagement mechanism where the convex protrusions fit into corresponding concave grooves, providing one-way positive engagement that ensures the sealing surface reaches the protruded edge during assembly while preventing backward movement or disengagement.
Data Source
AI summary
The present invention discloses an annular ring for preventing water from penetrating into electronic products including: an annular ring body, the cross section of the annular ring body having a shape with a concave notch; wherein the notch sleeves a protruded edge on a component in an electronic product. In another aspect, the present invention discloses an annular ring for preventing water from penetrating into electronic products including: an annular ring body, the cross section of the annular ring body is slice shaped; wherein the annular ring body is disposed at the lateral side of a protruded edge on a component in an electronic product, such that the lateral surface of the annular ring body fits the lateral surface of the protruded edge.