Adjustable Expansion Card Fixing Device with Clamping Rods
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Solution Overview
Problem
Existing fixing devices for expansion cards in desktop cases lack adjustability and stability, leading to deformation or damage of PCIe slots due to gravity and displacement, especially when multiple cards are installed in a compact space.
Innovation Solution
A fixing device with adjustable installation bases and rods, incorporating locking members, clamping portions, and a stabilizing batten with LED lighting, which allows for flexible installation and enhanced support to accommodate cards of varying thicknesses and sizes, and prevents displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a supporting stand with supporting plates is used to support expansion cards, then the PCIe slot is protected from deformation due to gravity, but the expansion card is not effectively fixed and may be displaced when the desktop computer shakes
Solution Approach 1:
The fixing device is divided into multiple independent components: installation bases, fixing rods, clamping portions, and fixing battens. Each component performs a specific function - installation bases provide positioning, fixing rods provide clamping force, and fixing battens provide additional stabilization. This segmentation allows the device to achieve both support stability and fixing reliability through coordinated action of multiple specialized components.
Solution Approach 2:
The fixing device incorporates adjustable intervals between installation bases that can be adapted to different numbers and thicknesses of expansion cards. The clamping portions can dynamically adjust to secure cards of varying sizes, and the fixing battens can be positioned to stabilize cards at different locations, providing both stability and reliable fixation adaptability.
2Stability of the object's composition
If a jack is installed in a desktop case with multiple expansion cards, then support is provided for the cards, but the inner space is too small causing large pushing force that damages components or outer case
Solution Approach 1:
Instead of using a single jack structure that concentrates force, the invention segments the support function across multiple installation bases and fixing rods distributed along the expansion card. This distributes the supporting force over a larger area, reducing localized stress on components and the outer case while maintaining effective card support.
Solution Approach 2:
The fixing device transitions from a single-point support (jack) to a distributed multi-point support system. By arranging installation bases and fixing rods at multiple positions along the expansion card's length, the device provides support in multiple dimensions, spreading the mechanical load across the structure rather than concentrating it at one location.
3Device complexity
If the interval between installation bases is fixed, then the structure is simple, but it cannot accommodate expansion cards with various thicknesses and numbers
Solution Approach 1:
The installation bases are designed with adjustable intervals between them, allowing the distance to be modified according to the number and thickness of expansion cards installed. This dynamic adjustability enables the same fixing device structure to adapt to various card configurations while maintaining structural integrity and proper card support.
Data Source
AI summary
A fixing device for an expansion card is installed on a frame of a desktop computer to fix an expansion card on the desktop computer. The fixing device includes at least two installation bases. After adjusting an interval between the installation bases, the installation bases are fixed to an opening of the frame by locking members. Each of the installation bases is provided with an installing through hole, such that an installation portion at the rear end of each of two fixing rods penetrates through the installing through. The front ends of the fixing rods vertically extend to form clamping portions to clamp the expansion card. The clamping portions and the expansion card are provided with a fixing batten to stabilize the expansion card.