Sealing Block Arrangements for Enclosure Cable Ports
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Solution Overview
Problem
Cable entry points in enclosures often allow contaminants to enter and expose the interior to environmental conditions, as existing cable entry seals are inadequate in sealing and accommodating varying cable sizes effectively.
Innovation Solution
A sealing unit with a sealant arrangement, containment walls, and spring elements that allow cables to pass through while inhibiting contaminants, featuring sliding containment elements and adjustable sealant volumes to accommodate different cable diameters, and a configurable enclosure for multiple cable routing configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cable entry seal is used to seal the opening, then environmental protection is improved, but the ability to accommodate varying cable sizes effectively is worsened
Solution Approach 1:
The containment elements are made movable rather than fixed, allowing them to slide away from the boundary to accommodate cables of different sizes. The spring elements provide dynamic force to maintain sealing pressure while allowing movement, creating a system that adapts to varying cable diameters while maintaining environmental protection.
Solution Approach 2:
The system changes the physical state and position of containment elements based on cable size. The spring elements adjust the compression force and position of containment elements dynamically, allowing the same sealing structure to effectively seal around cables of different diameters by changing the containment elements' positions rather than requiring multiple fixed-size seals.
2Ease of manufacture
If a fixed containment structure is used, then manufacturing simplicity is improved, but the ability to allow cable passage while maintaining seal is worsened
Solution Approach 1:
The containment wall is divided into multiple discrete containment elements rather than a single fixed structure. Each element can move independently to accommodate cables, and the spring elements provide individual force to each containment element. This segmentation allows the structure to remain relatively simple in assembly while gaining the operational flexibility needed for cable passage and sealing.
3Adaptability or versatility
If multiple sealing blocks are used for different cable configurations, then adaptability to various cable routing is improved, but device complexity is worsened
Solution Approach 1:
A single sealing block design with movable containment elements and spring mechanisms can accommodate multiple cable routing configurations and sizes. The universal design eliminates the need for multiple specialized sealing blocks for different cable types, as the same basic structure adapts to various configurations through the movement and positioning of its containment elements rather than requiring physically different blocks.
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
Provides effective environmental sealing, prevents contaminants from entering the enclosure, and accommodates various cable sizes, ensuring reliable protection and flexibility in cable routing configurations.
Implementation Method 1
The first spring element is configured to bias the containment elements of the first set of containment elements toward the boundary. The second spring element is configured to bias the containment elements of the second set of containment elements toward the boundary.
Data Source
AI summary
An enclosure includes a housing having sealing block arrangements disposed at corners of the housing. Each sealing block arrangement includes a containment wall to maintain sealant at the cable ports. A user can choose which corner ports are sealed or blocked by the sealing block arrangements. Each sealing block arrangement includes two volumes of sealant, a sealant containment wall, and two spring elements. Each containment wall includes containment elements that separate from each other to allow passage of a cable through the sealing block.