CPU Socket Heat Sink Retention for Stable Tightening
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Solution Overview
Problem
Existing CPU socket connector assemblies with heat sinks face challenges in preventing upward movement of the heat sink during tightening, which can lead to instability and potential damage.
Innovation Solution
The electrical connector assembly incorporates a retention member with a mounting part and a latching part, which is mounted to a securing post and engages the heat sink, along with a frame structure, metallic securing seat, fasteners, and springs to secure the heat sink in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a one-piece retention piece is used to prevent upward movement of the heat sink, then the heat sink stability is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The retention member is divided into two separate components: a retention arm that engages with the heat sink and a mounting structure that attaches to the securing post. This segmentation allows each component to be optimized independently for its specific function, reducing overall manufacturing complexity while maintaining the stability benefit
2Stability of the object's composition
If a one-piece retention piece is used to prevent upward movement of the heat sink, then the heat sink stability is improved, but the ease of manufacture decreases
Solution Approach 1:
By separating the retention member into a retention arm and mounting structure, each part can be manufactured using standard processes and then assembled through simple attachment mechanisms, significantly improving ease of manufacture compared to a complex one-piece design
Solution Approach 2:
The retention arm is designed to be elastically deformable, allowing it to self-adjust and self-lock into position during assembly without requiring precise manual adjustment or additional fastening operations, thereby simplifying the manufacturing process
3Strength
If fasteners are tightened to secure the heat sink, then the mounting strength is improved, but upward movement of the heat sink occurs during tightening
Solution Approach 1:
The retention arm is pre-positioned to engage with the heat sink before the fastening process begins. This preliminary engagement creates a counteracting force that prevents upward movement during tightening, allowing the fasteners to be secured without compromising heat sink position stability
4Stability of the object's composition
If a retention member with pivoted latching part is used to prevent upward movement, then the heat sink position stability is improved, but the device complexity increases
Solution Approach 1:
The latching part is designed to pivot between different positions, transitioning from a disengaged state during assembly to a locked state during operation. This dynamic element provides position stability only when needed, while maintaining simplicity during the assembly process
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
This configuration effectively prevents upward movement of the heat sink during tightening, ensuring stability and secure mounting of the heat sink to the CPU package.
Implementation Method 1
a plurality of springs each compressed between an associated fastener and the heat sink
Data Source
AI summary
An electrical connector assembly includes: a printed circuit board; an electrical connector seated upon the printed circuit board; an electronic package coupled to the electrical connector; a frame structure affixed to the printed circuit board; a metallic securing seat affixed to the frame structure and having plural securing posts; a heat sink positioned upon the electronic package and having plural through holes aligned with the securing posts; plural fasteners each extending through a corresponding through hole to engage a corresponding securing post and plural springs each compressed between an associated fastener and the heat sink; and a retention member mounted to a corresponding securing post for engaging the heat sink, wherein the retention member has a mounting part and a latching part pivoted to the mounting part.