Retainer Clip for Vibration-Resistant Memory Module Retention
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Solution Overview
Problem
In ruggedized environments with high vibration, memory modules attached to computer systems tend to become loose or dislodge from memory sockets due to inadequate retention by socket latches, leading to operational issues and potential damage.
Innovation Solution
A retainer clip is designed to provide additional support and stability by securing socket latches in place, featuring upper and lower flanges that attach to the module support towers, preventing the socket latches from opening and acting as a three-axis vibration damper to reduce unwanted motion of the memory module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If socket latches are used to secure memory modules, then memory modules can be easily installed and removed, but memory modules become loose or dislodge in high vibration environments
Solution Approach 1:
The retention system is divided into two independent components: socket latches for easy installation/removal and retainer clips for vibration resistance. The retainer clip is a separate element that can be applied without modifying the original latch mechanism, allowing each component to specialize in its function.
Solution Approach 2:
The retainer clip is pre-applied to the memory module or socket before the memory module is installed. This preliminary action ensures that when vibration occurs during operation, the retention force is already in place, preventing dislodgment without requiring real-time adjustment.
2Reliability
If retainer clips are added to secure memory modules in vibration environments, then retention stability improves, but device complexity increases
Solution Approach 1:
The retainer clip is designed as a simple, inexpensive component that can be easily manufactured and replaced if needed. Its simplicity reduces the overall system complexity despite adding another element, as each component remains straightforward rather than requiring complex integrated mechanisms.
Solution Approach 2:
The retainer clip acts as an intermediary element between the memory module and the socket structure. It provides the additional retention force needed for vibration environments without requiring direct modification of either the memory module or the socket, maintaining simplicity while improving reliability.
3Device complexity
If socket latches alone are used, then device complexity is minimized, but memory modules dislodge under vibration causing operational errors
Solution Approach 1:
The retainer clip provides beforehand cushioning against vibration forces by being pre-applied to the memory module or socket. This creates a protective retention force that counteracts vibration-induced dislodgment before it can occur during operation, without requiring complex active control systems.
Solution Approach 2:
The design accepts that socket latches alone are insufficient for vibration environments and converts this limitation into a benefit by adding a simple, dedicated retainer clip component. This specialized element addresses the vibration harm directly, allowing the original latch mechanism to remain simple while the added component handles the environmental challenge.
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
The retainer clip effectively secures memory modules in place, reducing the risk of dislodgment and operational errors, enhancing the reliability and longevity of memory modules in harsh environments by constraining motion along all axes and dampening vibrations.
Implementation Method 1
the upper flange and the lower flange are coupled together with a left clip arm and a right clip arm for forming a flag spring acting as a vibration dampener along a y-axis running from the memory socket to the motherboard
Implementation Method 2
acting as a three-axis vibration damper to reduce unwanted motion of the memory module
Implementation Method 3
providing additional support and stability by securing socket latches in place, featuring upper and lower flanges that attach to the module support towers, preventing the socket latches from opening and acting as a three-axis vibration damper
Data Source
AI summary
A memory module testing system operating in a vibratory environment can retain a memory module in place in a memory socket using both socket latches and a retainer clip. The retainer clip can attach to a module support tower of the memory socket. The retainer clip can have a flexible multi-spring structure forming a three-axis vibration dampening system that can prevent the socket latches from opening while testing in the test environment. The retainer clip can secure the socket latches using an upper flange and a lower flange to prevent unintended motion of the socket latches. The retainer clip can be secured to the module support towers at the ends of the memory socket using clip arms and clip arm tips to attach to the module support towers.