Screw-less Interface Card Fixing Assembly with Elastic Cover
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Solution Overview
Problem
Conventional screw-based fixing assemblies for interface cards are inconvenient for detachment and assembly, requiring tools and risking screw loss or short circuits, especially in large computer systems where multiple cards need to be installed or removed.
Innovation Solution
A screw-less fixing assembly using an L-shaped fixing support with an elastic member and movable cover module, allowing interface cards to be secured and detached through a pressing action without tools, reducing assembly time and preventing screw-related issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fix the interface card, then the interface card is securely fixed to the computer casing, but the user needs tools to detach the interface card and screws may be lost or cause short circuits
Solution Approach 1:
The invention extracts the harmful element (screws) from the fixing system and replaces it with a snap-fit mechanism using an elastic member and movable cover module. The elastic member engages with the fixing support through elastic deformation, providing secure fixation without requiring screws that can be lost or cause short circuits.
Solution Approach 2:
The movable cover module provides dynamic fixing capability - it can be pressed to engage the elastic member with the fixing support for secure attachment, and pulled to release for easy detachment. This dynamic mechanism eliminates the need for tools while maintaining reliable fixation during operation.
2Reliability
If screws are used to fix multiple interface cards, then each card is securely fixed, but it takes a lot of time and labor hours to detach and assemble multiple interface cards
Solution Approach 1:
The elastic member provides self-service fixation - when the movable cover module is pressed, the elastic member automatically deforms and engages with the fixing support, securing the interface card without requiring manual screw tightening. For detachment, simply pulling the cover module releases all cards simultaneously, greatly improving assembly efficiency.
Solution Approach 2:
The invention merges multiple fixing operations into a single action. One pressing motion secures an interface card, and one pulling motion can detach multiple cards at once. This combines what would otherwise require multiple individual screw operations into unified actions, significantly improving productivity.
3Strength
If screws are used to fix the interface card, then the interface card is firmly attached, but the user requires a tool such as a screw driver which complicates the operation
Solution Approach 1:
The invention replaces the screw-mechanical system with an elastic deformation system. Instead of using threaded mechanical fasteners requiring rotational force and tools, the elastic member uses elastic deformation force achieved through simple linear pressing motion, eliminating the need for screwdrivers and reducing operational complexity.
Solution Approach 2:
The fixing mechanism changes from a rotational parameter (screw threading) to a linear displacement parameter (cover module pressing). This parameter change simplifies the operation from complex rotational tool use to simple linear pressing, while the elastic member maintains strong attachment through its material properties.
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
Enables rapid and tool-free attachment and detachment of interface cards, reducing assembly time and eliminating the risk of screw loss or short circuits, while accommodating multiple cards in large systems.
Implementation Method 1
the elastic member can tightly secure the fixing support with its elastic deformation
Data Source
AI summary
A screw-less fixing assembly for an interface card having a fixing support includes a frame, a movable cover module and an elastic member. The frame has an I/O opening. One side of the I/O opening is provided with an accommodating space. A long plate of the fixing support is positioned to correspond to the I/O opening, and a short plate of the fixing support is received in the accommodating space. The movable cover module is mounted in the accommodating space. The elastic member has an elastic protrusion positioned to correspond to the short plate of the fixing support. The movable cover module is moved to drive the elastic protrusion to tightly fix the short plate of the fixing support to the frame. With this arrangement, the interface card can be rapidly detached from the frame or attached thereto without using screws.