Tool-less Expansion Module for HPC Cabinets
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Solution Overview
Problem
Current High-Performance Computer (HPC) systems face challenges in easily and safely replacing expansion cards without tools, as existing solutions require disassembly of the housing and complicate the 'hot swappable' feature, making customization difficult and time-consuming.
Innovation Solution
A tool-less expansion module for HPC cabinets featuring a casing with a support card, module connectors, a lever for locking/unlocking the casing, and a pivotable handle that allows manual operation without tools, enabling safe removal and replacement of expansion cards without requiring tool usage or shutting down the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional locking mechanism is used to secure expansion cards, then the expansion cards are firmly fixed, but the replacement process requires tools and disassembly of the housing
Solution Approach 1:
The locking mechanism is segmented into two independent parts: a first lever for locking/unlocking the expansion module casing, and a second lever for locking/unlocking the expansion cards. This segmentation allows each lever to perform its specific function independently, enabling tool-less operation while maintaining secure fixation.
Solution Approach 2:
The levers are designed to be manually operable without requiring external tools. The levers themselves serve as the operating mechanism, allowing users to lock and unlock both the casing and expansion cards by simply moving the levers, thus making the system self-servicing.
2Adaptability or versatility
If the housing is made secure and fixed, then the expansion cards are protected, but the hot swappable feature becomes difficult to implement
Solution Approach 1:
The locking mechanism transitions from a static fixed state to a dynamic controllable state. The levers can be moved between locked and unlocked positions, allowing the housing to be securely fixed when needed while enabling easy access for hot swapping expansion cards when required.
Solution Approach 2:
The levers act as intermediary elements between the user and the locking mechanism. By operating the levers, users can control the locked/unlocked state of both the casing and expansion cards, enabling hot swappable capability while maintaining housing security when locked.
3Ease of operation
If a complex locking system is used to secure multiple expansion cards, then all cards are firmly fixed, but the operation becomes difficult without tools
Solution Approach 1:
The second lever is designed to simultaneously lock or unlock multiple expansion cards at once. This multi-functional lever replaces what would otherwise require multiple individual locking mechanisms, simplifying the operation to a single action while maintaining secure fixation of all cards.
Solution Approach 2:
Multiple locking functions for different expansion cards are merged into a single second lever mechanism. This consolidation allows all expansion cards to be locked or unlocked simultaneously through one lever operation, eliminating the need for multiple separate locking actions or tools.
Data Source
AI summary
An expansion module for a computing unit of a High-Performance Computer cabinet, the expansion module comprising a casing configured to be removably guided horizontally in a main housing of a computing unit of a High-Performance Computer cabinet, a support card, mounted within the casing, comprising at least one module connector, said module connector being configured to be removably connected to the computing unit, a plurality of card slots connectors, each card slot connector being configured to be removably connected to an expansion card, at least a lever for locking/unlocking the casing to the main housing of the computing unit, said lever being operable manually without using any tools and a handle, pivotable according to a vertical axis, configured for locking/unlocking simultaneously the expansion cards when mounted in the card slot connectors.