Cable Management Assembly With Preassembled Bracket
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Solution Overview
Problem
Existing cable management assemblies face challenges in securely managing and attaching 3-phase power cables in a trefoil arrangement to ladder rungs, particularly during short-circuit events, and often require loose hardware that can be lost or misplaced, with installation processes that complicate cable placement and attachment.
Innovation Solution
A cable management assembly featuring a hinged cleat with a quick-install bracket assembly that allows for secure attachment to a ladder rung with cables already in place, using a C-shaped bracket with preassembled fasteners to eliminate loose parts and simplify installation, and includes a flexible cable protection insert to accommodate various cable sizes and ladder rung geometries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional cable cleats are secured to ladder rungs using bolts and nuts, then the cables can be secured laterally and axially, but the installation process requires access to mounting bolts directly over cable positions, complicating cable placement and increasing installation time
Solution Approach 1:
The cable management system is divided into separate functional components: the C-shaped bracket assembly that attaches to the ladder rung, and the cable cleat assembly that secures the cables. This segmentation allows the bracket to be positioned on the ladder rung first, providing a mounting platform that does not interfere with subsequent cable placement through the cleat assembly.
Solution Approach 2:
The C-shaped bracket assembly is pre-assembled with the cable cleat assembly before installation. This preliminary assembly creates a integrated unit where the mounting bracket and cable securing mechanism are already positioned relative to each other, eliminating the need for complex on-site assembly and allowing cables to be placed through the pre-positioned cleat openings without interfering with bolt access.
2Ease of operation
If cable cleats are installed before cables are placed, then mounting bolts can be accessed directly, but cables must be moved out of the way during installation, increasing complexity and time
Solution Approach 1:
The mounting bracket assembly and cable cleat assembly are merged into a single integrated C-shaped bracket structure. The bracket body incorporates both the ladder rung attachment function and the cable cleat mounting function, allowing both operations to be performed simultaneously without requiring separate installation steps or moving cables out of the way.
3Ease of manufacture
If C-shaped brackets with loose hardware are used, then cable cleats can be attached to ladder rungs, but hardware can be lost or misplaced during installation
Solution Approach 1:
The fastening hardware (bolts, nuts, and washers) is permanently integrated into the C-shaped bracket assembly during manufacturing. The brackets are supplied as pre-assembled units with all fastening components already in place and secured, eliminating the possibility of loose hardware being lost or misplaced during the installation process while maintaining ease of bracket attachment to ladder rungs.
4Strength
If traditional cable cleats are used, then cables can be secured in a trefoil arrangement, but the cleats must be rigid enough to retain cables during short-circuit events with extremely high electromagnetic forces
Solution Approach 1:
The cable cleat assembly incorporates a flexible cable protection insert positioned within the upper and lower shells. This insert provides localized adaptability to accommodate various cable sizes and geometries through its flexibility, while the overall rigid structure of the upper and lower shells maintains the strength required to retain cables during short-circuit events with extremely high electromagnetic forces.
Data Source
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AI summary
A cable management assembly includes a cleat assembly and a bracket assembly insertable through the cleat assembly to secure the cleat assembly to a ladder rung. The cleat assembly has an upper shell, a lower shell rotatably coupled to the upper shell, and a first fastener to secure the upper and lower shells. The bracket assembly has a C-shaped bracket having a first leg and a second leg extending parallel to the first leg. The first leg includes a longitudinal slot and the second leg includes a flange and a longitudinal slot extending through the second leg and the flange. A second fastener extends through the slot in the second leg and is movable between an open position in which the fastener is spaced apart from the first leg and a closed position in which the fastener is positioned within the slot in the first leg.