Retainer Assembly Sliding Grooves CPU Engagement Stability
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Solution Overview
Problem
Existing arrangements between the CPU and retaining clip do not ensure a stable engagement, leading to potential withdrawal issues, especially when the retaining clip is mounted or not mounted on a printed circuit board.
Innovation Solution
A retainer assembly is designed with sliding grooves on the CPU and a receiving space with movable retaining arms in the retaining clip, allowing perpendicular assembly and secure retention, even when the clip is not mounted on a printed circuit board, using a load plate for secure engagement with the electrical connector housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional retaining clip arrangement is used to hold the CPU, then the structure is simple, but the engagement between the CPU and the retaining clip is not perfect enough, leading to potential withdrawal risks
Solution Approach 1:
The retaining clip is divided into a body portion and movable retaining arms that can independently move along sliding grooves. This segmentation allows the retaining arms to engage with the CPU's integrated heat sink separately from the clip body, creating multiple engagement points that improve reliability without requiring a completely complex new structure
Solution Approach 2:
The retaining arms are designed to be movable rather than fixed, allowing them to dynamically adjust their position along the sliding grooves during CPU insertion and securing. This dynamic capability enables the arms to properly engage with the CPU's heat sink blocks, ensuring stable engagement while maintaining a relatively simple overall structure
2Adaptability or versatility
If the retaining clip is not mounted on a printed circuit board, then the assembly is more versatile, but the engagement between the CPU and the retaining clip may not be perfect enough
Solution Approach 1:
The retention mechanism extends into a new dimensional space by using movable retaining arms that travel along sliding grooves in a direction perpendicular to the CPU's vertical axis. This dimensional change allows the arms to engage with the CPU's heat sink blocks from the sides, providing stable engagement even when the clip itself is not anchored to a PCB, thereby maintaining versatility
3Ease of operation
If the CPU is loaded perpendicular to its vertical direction, then the assembly process is simplified, but the engagement may not be stable without proper retention features
Solution Approach 1:
The CPU is pre-formed with sliding grooves and heat sink blocks that serve as preliminary engagement features. These features are prepared in advance during CPU manufacturing, allowing the retaining arms to smoothly engage with them during perpendicular insertion without requiring complex assembly operations or additional stabilization measures
Data Source
AI summary
A retainer assembly includes a CPU and a retaining clip assemble together along an insertion/withdrawal direction perpendicular to a vertical direction of the CPU wherein the CPU forms a pair of sliding grooves, and the retaining clip forms a receiving space, an opening communicating the receiving space with an exterior, and a pair of retaining arms located by two sides of the receiving space and moveable along the pair of sliding grooves for allow the CPU to be received within the receiving space via said opening. The retaining arm may further optimally form a recess to receive a block of the CPU for retaining the CPU with regard to the retaining clip in the insertion/withdrawal direction. The retaining clip may or may not be mounted to the printed circuit board on which an electrical connector is mounted.