Rivet Spacer for CPU Connector Assembly Interference
Solution Overview
Problem
The existing independent loading mechanism for CPU connectors faces interference issues during assembly due to the limited vertical movement of screw nut units, which can lead to improper positioning or damage during screwing with screw posts, hindering the assembly process.
Innovation Solution
The mechanism incorporates hollow spacers in the frame's through holes, allowing screw nut units to move vertically beyond the frame's thickness, preventing interference and ensuring secure fastening between the frame, back plate module, and printed circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the screw nut unit is allowed to move vertically within a limited distance not more than the frame thickness, then the screw nut unit can be retained in the frame, but interference may occur between the screw nut unit and screw post during sequential screwing
Solution Approach 1:
The patent introduces a spacer as an intermediary component between the screw nut unit and the frame. This spacer extends vertically beyond the frame thickness and provides additional vertical movement space for the screw nut unit, allowing it to move without interfering with the screw post while still being retained by the frame structure.
Solution Approach 2:
The patent solves the contradiction by extending the movement range in the vertical dimension beyond the frame thickness. The spacer enables the screw nut unit to move vertically in another dimension (beyond the frame's vertical boundary), thus avoiding interference with the screw post while maintaining retention.
2Object-generated harmful factors
If the screw nut unit is allowed to move vertically beyond the frame thickness, then interference with screw post is avoided, but the screw nut unit may be pushed out of the frame
Solution Approach 1:
The spacer acts as a mediator that enables vertical movement beyond frame thickness while preventing the screw nut unit from being pushed out. The spacer's structure allows controlled movement within a defined range, balancing the need for interference avoidance with the need for retention.
Solution Approach 2:
The patent implements a dynamic retention system where the screw nut unit can move vertically within a controlled range (beyond frame thickness) but is still retained by the frame structure. This dynamic capability allows the screw nut unit to adjust its position to avoid interference while maintaining overall retention.
3Ease of manufacture
If the vertical movement range is limited to frame thickness, then the screw nut unit is easily retained, but damage may occur to the screw nut unit or frame during assembly
Solution Approach 1:
The spacer serves as a protective intermediary that absorbs the vertical movement and prevents direct contact between the screw nut unit and the frame during assembly. This intermediary structure allows the screw nut unit to move vertically beyond frame thickness without damaging the frame, while the frame's retention mechanism remains relatively simple.
Solution Approach 2:
The spacer provides beforehand cushioning by creating a buffer zone that allows vertical movement before the screw nut unit could potentially damage the frame. This pre-established protective structure prevents damage during the assembly process while maintaining ease of manufacture.
Data Source
AI summary
An independent loading mechanism for use with a CPU connector includes a metallic frame cooperating with a back plate module to sandwich a printed circuit board therebetween. A plurality of screw nut units are provided around the four corners of the frame. A plurality of hollow spacers are secured to the corresponding through holes of the frame so as to allow the corresponding screw nut units moveable relative to the frame along the vertical direction within a range larger than a thickness of the frame, thus avoiding improper interference between the screw nut units and the corresponding screw posts of the back plate module during sequential screwing.