Socket Retainer with Deflectable Fixing Seat for CPU
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Solution Overview
Problem
Existing electrical connector assemblies risk damaging CPU terminals during loading due to the mechanical grip of discrete retainers, and while rotational type retainers mitigate this risk, they often have complex structures that are not simplified enough for efficient use.
Innovation Solution
An electrical connector assembly featuring a fixing device with a stationary part and a moveable insertion part, allowing the retainer with the CPU to rotate for secure positioning within an insulative housing, utilizing a V-shaped cut for movement and side arms for secure alignment, along with a pivotal lever and locking mechanism for secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a discrete retainer is used to hold the CPU, then the CPU can be gripped by fingers for loading, but there is a risk of damaging the terminals in the socket
Solution Approach 1:
The patent introduces a retainer as an intermediary component between the CPU and the socket. This retainer holds the CPU during handling and loading, preventing direct finger contact with the socket terminals. The retainer acts as a protective mediator that eliminates the harmful effect of potential terminal damage while maintaining ease of CPU loading through the retainer's grip features.
2Object-affected harmful factors
If a rotational type retainer is used to prevent terminal damage, then the risk of damaging terminals is reduced, but the structure becomes more complex
Solution Approach 1:
The patent extracts the rotational mechanism from the retainer structure, leaving only the essential holding and protective functions. By removing the complex rotational feature, the design achieves terminal protection through a simpler, more straightforward structure that maintains safety without the added complexity of rotational movements.
Solution Approach 2:
Instead of using a rotational retainer that moves to protect terminals, the patent inverts the approach by using a fixed, stable retainer structure that inherently prevents terminal damage through its design. The protection is achieved not through movement but through the static configuration that securely holds the CPU away from the socket terminals.
3Device complexity
If a simplified structure is desired for the retainer, then manufacturing and operation are easier, but reliability of CPU positioning may be compromised
Solution Approach 1:
The patent segments the retainer into distinct functional components: a body for holding the CPU, positioning features for accurate alignment, and connection elements for securing to the socket. This segmentation allows each part to be optimized for its specific function, achieving reliable CPU positioning through well-defined simple geometric features rather than complex integrated mechanisms.
Data Source
AI summary
An electrical connector assembly for connecting a CPU to a printed circuit board, includes an insulative housing, a fixing device and a retainer. The fixing device is located by one end side, and the retainer is used to load the CPU into the housing. The fixing device includes a stationary part and a moveable insertion part wherein the retainer with the CPU therein is retained to the insertion part to commonly rotate about the stationary part for positioning the retainer with the CPU therein within the housing.