Telecommunications Enclosure O-Ring Channel for Re-Entry Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing telecommunications enclosures face challenges in maintaining reliable seals when re-entered for access, as existing sealing mechanisms can fail to contain environmental seals effectively, leading to potential leakage and damage.
Innovation Solution
A telecommunications enclosure design featuring a cylindrical upper dome and lower base with a seal channel and O-ring seal, where the channel bottom surface angles upwardly to contain the O-ring seal, and a clamp system that secures the flanges to maintain a tight seal, preventing seal extrusion and ensuring reliable sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a seal channel is provided without an outer circumferential lip, then the seal channel allows easy installation of the O-ring seal, but the O-ring seal can extrude outwardly between the flanges during tightening, compromising seal reliability
Solution Approach 1:
The seal channel is designed with different local geometries: the bottom surface has a specific angle to guide the O-ring during installation, while the outer circumferential lip provides a containment barrier. This local differentiation of geometric properties allows the seal channel to simultaneously facilitate easy installation and prevent seal extrusion under compression.
2Device complexity
If the channel bottom surface is flat, then the seal channel structure is simple, but the O-ring seal cannot be effectively contained and may shift or extrude under clamp pressure
Solution Approach 1:
The channel bottom surface is designed with a specific angle relative to the radial direction, creating a localized geometric feature that guides and contains the O-ring seal. This angled surface, combined with the outer circumferential lip, provides effective seal containment while maintaining relatively simple overall channel structure.
3Ease of repair
If the outer circumferential lip is missing, then the seal channel allows easier cleaning and maintenance access, but the O-ring seal lacks containment and can be damaged during enclosure tightening
Solution Approach 1:
The outer circumferential lip is designed as a localized containment feature that protects the O-ring seal during operation. The lip's geometry provides mechanical protection against extrusion and damage while maintaining reasonable access for maintenance activities, balancing protection with serviceability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enhances seal reliability by containing the O-ring seal within the channel, preventing leakage and ensuring a secure, re-enterable enclosure that maintains environmental integrity.
Implementation Method 1
an O-ring seal that mounts in the seal channel and may be compressed between the upper dome and the lower base to provide sealing thereinbetween
Implementation Method 2
The channel bottom surface can extend radially outwardly to an outer circumferential lip that projects upwardly from the channel bottom surface. In certain examples, the channel bottom surface may angle upwardly as the channel bottom surface extends radially away from the central axis to the outer circumferential lip.
Implementation Method 3
The telecommunications enclosure may also include a clamp that mounts about the outer flanges of the upper dome and the lower base. The clamp may define a clamp channel that receives the outer flanges.
Data Source
AI summary
A telecommunications enclosure is disclosed. In one example, the telecommunications enclosure includes an upper dome and a lower base. An O-ring seal can be compressed between a sealing surface of the upper dome and/or a sealing surface of the lower base to provide sealing thereinbetween.