Modular U-Shaped Cable Pass-Through for Data Center Airflow Control
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Solution Overview
Problem
Data centers face inefficiencies in HVAC systems due to 'bypass air' caused by cable routing through cabinet openings, which existing solutions like brushes and custom-cut rubber grommets fail to effectively address, especially in segregating cables and maintaining static pressure.
Innovation Solution
A modular cabinet cable pass-through system featuring interlocking U-shaped plates with adjustable openings and flow restrictors, allowing for clean segregation of cables while minimizing bypass air by maintaining a rigid structure and using additional barriers like brushes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cable routing openings are provided in equipment cabinets, then cables can be routed through the cabinets, but bypass air leaks between hot and cold environments reducing static pressure
Solution Approach 1:
The cabinet opening is segmented into multiple modular plate sections that can be independently adjusted. The modular plates create separate compartments that guide cables through controlled pathways while maintaining barriers against bypass air. Each plate segment can be positioned to optimize both cable access and airflow restriction.
Solution Approach 2:
The modular plate system allows dynamic adjustment of the opening configuration. Plates can be repositioned along the cabinet opening to accommodate different cable quantities and sizes while maintaining a consistent seal against bypass air. The system adapts to varying cabling requirements without compromising static pressure.
2Loss of energy
If brushes are used to reduce bypass air, then some air leakage is reduced, but cable segregation is not achieved and static pressure loss is not significantly reduced
Solution Approach 1:
Instead of a single brush element, the system uses multiple modular plate segments that create distinct compartments. Each compartment can accommodate different cable types (power, data, fiber) while maintaining separate sealed pathways. This segmentation enables both effective bypass air reduction and proper cable segregation.
Solution Approach 2:
The modular plates serve as intermediary structures between the cabinet interior and exterior. These plates create controlled transition zones that guide cables through sealed pathways, replacing the inadequate brush intermediary with a more effective rigid barrier system that maintains static pressure while organizing cables.
3Ease of operation
If rubber grommets are cut to accommodate cable quantity, then cable routing is achieved, but the solution is difficult to use and material cannot be added back when cables are removed
Solution Approach 1:
The modular plate system provides dynamic adjustability where plates can be easily repositioned along the cabinet opening to accommodate varying cable quantities. Unlike fixed-cut grommets, the modular plates can be moved, added, or removed without complex manufacturing processes, enabling flexible adaptation to changing cabling requirements.
Solution Approach 2:
The modular plates serve multiple functions: they accommodate different cable quantities, maintain sealed barriers against bypass air, provide cable segregation, and allow easy reconfiguration. This universal design replaces the single-function custom-cut grommet approach with a multi-functional system that handles various cabling scenarios.
4Loss of energy
If modular plates with adjustable openings are used, then cable segregation and bypass air reduction are achieved, but device complexity increases
Solution Approach 1:
The system divides the cabinet opening into multiple independent modular plate segments. Each segment is a simple, standardized component that can be independently installed and adjusted. This segmentation breaks down the complex function of cable management and airflow control into manageable, repeatable units that reduce overall system complexity.
Solution Approach 2:
The modular plates combine multiple functions into single components: they provide structural support, create sealed barriers, guide cable routing, and maintain static pressure. By merging these functions into integrated plate units rather than separate components, the system reduces the number of parts and simplifies installation while achieving comprehensive performance.
Data Source
AI summary
Systems and methods for modular cabinet cable pass through are disclosed. A system may include a first lead modular plate having a U-shape and a first and a second follower modular plate, each of the first and the second follower modular plates having a U-shape and having a first follower modular plate leg and a second follower modular plate leg and a second plate portion therebetween, the second follower modular plate leg being longer than the first follower modular plates leg, and a bottom plate that receives at least a portion of the first lead modular plate, and the second follower modular plate legs of the first and the second follower modular plates. At least one cable may pass between an opening defined by the bottom plate and one of the first follower plate and the second follower plate.