Pre-bowed Support Member for System Board Sagging
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Solution Overview
Problem
As server technology advances, the increased weight of components on system boards leads to sagging in server chassis, which can exceed height limitations and cause contact with adjacent servers, and pre-bowing sheet metal alone is insufficient to prevent this vertical movement.
Innovation Solution
A support member with a frame and mounting members is used to connect to the system board, forming an arc that bends the board upward, reducing sagging and preventing contact with adjacent servers, and includes features like a handle member for easy installation and a heat sink bracket for thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If pre-bowing sheet metal is used to reduce sagging, then the initial shape stability is improved, but the structural strength is insufficient to prevent vertical movement under heavy component weight
Solution Approach 1:
The support member is pre-bowed into an arc shape that matches the desired curved configuration of the system board. When installed, this pre-curved support member forces the system board to conform to the arc shape, preventing sagging in the middle. The curvature is specifically designed to counteract the natural downward deflection caused by heavy components, maintaining both shape stability and structural strength.
Solution Approach 2:
The support member is pre-formed with the correct arc shape before installation. This preliminary action of pre-bowing the support member eliminates the need to pre-bow the system board or server chassis, which would be insufficient. The pre-formed curvature is applied in advance to the support structure itself, ensuring it can withstand the heavy component weight from the beginning.
2Power
If the system board is made heavier with advanced components, then the computing power and functionality are improved, but the sagging increases causing contact with adjacent servers
Solution Approach 1:
The pre-bowed arc-shaped support member acts as a counteracting structure that opposes the downward force of gravity on heavy components. The curved shape creates upward support forces at the ends of the system board, counterbalancing the weight of advanced computing components in the middle, thereby preventing sagging and contact with adjacent servers.
3Length of stationary object
If the server chassis height is reduced to prevent contact, then the space efficiency is improved, but the vertical movement clearance is reduced causing contact under load
Solution Approach 1:
By implementing a curved arc shape in the support member and system board configuration, the vertical clearance is optimized. The curve allows the board to sag naturally along an arc rather than dropping vertically, maintaining adequate clearance from adjacent servers even with reduced chassis height. This curvature provides the necessary vertical movement clearance while improving space efficiency.
Data Source
AI summary
A support member that positions a system board is provided herein. The support member includes a frame and a plurality of mounting members. The frame supports a system board. The plurality of mounting members are formed in the frame. The plurality of mounting members connect the frame to the system pan holding the system board. The plurality of mounting members are disposed on the frame to bend the system board.