Server Mounting Cage with Dual Guide Pillars for Stress Distribution
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Solution Overview
Problem
Existing server mounting systems are inconvenient for removing or mounting expansion cards due to concentrated stress on a single supporting component, making the process laborious.
Innovation Solution
A server and mounting cage design that uses a handle pivotally connected to a bearing base, with a first guide pillar and second guide pillar to share stress, allowing the expansion card to be easily removed or mounted by sliding the first guide pillar in a guide slot and using a linkage to distribute the reaction force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single supporting component is used to support the handle, then the structure is simple, but all stress concentrates on that single component making it laborious to operate
Solution Approach 1:
The patent divides the single supporting component into multiple guide pillars (first guide pillar and second guide pillar). The first guide pillar is fixed to the chassis side plate and slides in the first guide slot, while the second guide pillar slides in the second guide slot. This segmentation distributes the stress from handle operation across multiple components, reducing stress concentration and making operation less laborious.
2Ease of operation
If a handle is added to help remove or mount expansion card, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent employs dynamic elements including a pivotally connected handle that can rotate, and guide pillars that slide within guide slots. The linkage connects the handle to the bearing base through pivotal connections, allowing dynamic movement during expansion card installation and removal operations. This dynamic design provides mechanical advantage while maintaining operational simplicity.
Solution Approach 2:
The patent introduces intermediary components including the linkage that connects the handle to the bearing base, and the guide slots that guide the movement of guide pillars. These intermediary elements facilitate the transfer of force and motion between the handle and the expansion card, improving ease of operation while distributing structural complexity across multiple specialized components.
3Quantity of substance
If the expansion card weight is increased due to more connectors, then buffering space is improved, but the overall weight increases requiring a handle for assistance
Solution Approach 1:
The patent extends the bearing base away from the motherboard along the dimension parallel to the chassis side plates. This dimensional extension provides leverage and mechanical advantage, allowing the handle system to effectively manage the increased weight of expansion cards with multiple connectors and memory card buffering capacity.
Data Source
AI summary
A server including chassis, motherboard, mounting cage, first guide pillar and expansion card. Motherboard is stacked on chassis bottom plate. Mounting cage includes bearing base, handle and first pivot. Bearing base is located on a side of motherboard located away from the chassis bottom plate and located between two chassis side plates. One of two bearing base side plates includes first guide slot, and handle is pivotally connected to the one of two bearing base side plates via first pivot and includes engagement hole. First guide pillar is fixed to the one of two chassis side plates and slidably disposed in first guide slot of the one of two chassis side plates. First guide pillar is engaged into engagement hole of handle. Expansion card is stacked on bearing base bottom plate and electrically connected to motherboard.