Hybrid Control Cooling Module Sliding Separation
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Solution Overview
Problem
Existing network device systems face challenges with combined cooling and control modules, where a single fan malfunction requires replacing the entire hybrid module, leading to high costs and downtime, and the integration of control modules with cooling modules can result in reduced cooling efficiency and limited interface card functionality.
Innovation Solution
A hybrid module design featuring a control module and an independently removable cooling module, where the cooling module is slidably mounted underneath the control module, allowing for separate installation and replacement, and both modules share space on the rear side of the network device, enabling efficient cooling and increased front-side space for interface cards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If cooling modules are combined with control modules in a hybrid module, then space efficiency is improved, but reliability deteriorates because a single fan malfunction requires replacing the entire hybrid module
Solution Approach 1:
The hybrid module is divided into separable components: the control module and the cooling module. The cooling module can be independently removed from the control module, allowing replacement of only the cooling component when a fan malfunctions, rather than replacing the entire hybrid module. This segmentation maintains space efficiency while improving reliability.
Solution Approach 2:
The cooling module is extracted as an independent, removable component from the control module. The cooling module includes a frame with mounting tabs that engage with the control module, allowing it to be easily detached and replaced. This extraction enables targeted replacement of cooling components without affecting the control module.
2Ease of operation
If control modules are placed on the front side of the network device, then ease of operation is improved, but device complexity increases as shelves get shorter and control modules take up more space
Solution Approach 1:
The control module is positioned on the rear side of the network device rather than the front side, utilizing the vertical dimension and rear space. This dimensional repositioning allows the control module to be accessible while freeing up front shelf space for interface cards, reducing the impact of shorter shelf heights.
3Area of stationary object
If control module cards are located next to cooling modules on the rear side, then space efficiency is improved, but cooling efficiency deteriorates as cards cannot be cooled by the cooling modules
Solution Approach 1:
The cooling module is extracted as a separate, independently mountable component that can be positioned to optimize cooling airflow. The cooling module includes fans and airflow channels that can be configured to cool both the control module and adjacent interface cards effectively, maintaining cooling efficiency while utilizing rear side space.
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
This design enables in-service replacement of the control module, maintains cooling efficiency, and allows for larger interface cards by separating the control and cooling functions, reducing downtime and costs while optimizing space usage.
Implementation Method 1
a cooling module, which provides cooling, such as via fans and associated air flow
Data Source
AI summary
A network device includes a shelf configured to support interface cards on a front side; a control module including a first frame and a printed circuit board disposed to the first frame, wherein the control module is configured to connect on a rear side of the shelf; and a cooling module including a second frame and cooling fans disposed to the second frame, wherein the second frame is configured slidingly connect to the first frame on the rear side of the shelf.