Rotatable Expansion Card Mounting Assembly for Short and Long Cards
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Solution Overview
Problem
Existing mounting solutions for M.2 SSDs with similar sizes face interference issues due to close placement on circuit boards, making it inconvenient to mount them using traditional screw mechanisms, especially when requiring screws to be inserted from the bottom surface.
Innovation Solution
A mounting assembly with a fixed and rotatable plate configuration, allowing a fastening hole to be positioned closer or farther from a connector based on the card length, enabling easy mounting from the top surface, and accommodating both short and long expansion cards with similar sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional screw mounting is used for M.2 SSDs with similar sizes, then the mounting structure is simple, but the holders are too close to be disposed on the circuit board due to interference issues
Solution Approach 1:
The rotatable plate enables dynamic adjustment of the fastening hole position between two mounting positions, allowing the same mounting assembly to accommodate both short and long expansion cards with similar sizes by rotating the plate to the appropriate position
Solution Approach 2:
The mounting assembly is segmented into a fixed plate and a rotatable plate, where the rotatable plate can independently rotate to adjust the fastening hole position, providing adaptability for different card sizes while maintaining a compact overall structure
2Adaptability or versatility
If an elongated hole is designed on the circuit board to accommodate M.2 SSDs with similar sizes, then the mounting adaptability is improved, but screw threads are unable to be disposed in the elongated hole requiring screws to be screwed from the bottom surface
Solution Approach 1:
Instead of screwing from the bottom surface as in traditional designs, the fastening hole is positioned on the top surface of the circuit board, allowing screws to be inserted from the top, which simplifies the mounting operation and eliminates the need for bottom surface access
Solution Approach 2:
The rotatable plate acts as an intermediary mechanism that positions the fastening hole at appropriate locations for different card sizes, enabling top-surface screw insertion while maintaining adaptability for both short and long expansion cards
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
Facilitates easy and convenient mounting of both short and long expansion cards by allowing the fastening hole to be adjusted relative to the connector, reducing interference and enhancing installation flexibility.
Implementation Method 1
The pivot part is rotatably disposed on the fixed plate. A pivot axis of the pivot part is spaced apart from a central axis of the fastening hole
Data Source
AI summary
A mounting assembly and a circuit board assembly. The mounting assembly configured to mount a short or long expansion card on the circuit board. The mounting assembly includes a fixed plate and a rotatable plate. The rotatable plate includes a body part, a pivot part and a fastening part. The pivot part is rotatably disposed on the fixed plate. The fastening part has a fastening hole. A pivot axis of the pivot part is spaced apart from a central axis of the fastening hole. When the fastening hole is at the first mounting position, the fastening hole is located closer to the connector than the pivot part to fix the short expansion card. When the fastening hole is at the second mounting position, the fastening hole is located farther away from the connector than the pivot part to fix the long expansion card.