Tool-Free Interface Card Fixing Structure
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Solution Overview
Problem
Conventional interface card fixing structures require a screwdriver for installation and disassembly, are not adjustable, and limit the flexibility of motherboard design due to fixed baffle sizes, making them inconvenient and restrictive for modern computer host designs aiming for light, thin, short, and small characteristics.
Innovation Solution
A fixed structure comprising thin metal shells with pressing and engaging portions that securely fasten the interface card into a slot using protruding blocks, providing stability along Z-axis and preventing tilting with extension portions on the second shell, allowing for easy installation and disassembly without tools and accommodating varying slot configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screwdriver is used to lock the screw between the baffle and the computer case for fixing the interface card, then the interface card can be securely fixed, but the installation and disassembly procedure becomes inconvenient and requires additional tools
Solution Approach 1:
The pressing portion of the metal shell enables the user to directly press and expand the engaging portion to fix the interface card without requiring a screwdriver. The structure serves itself by integrating the expanding mechanism into the fixing process, allowing tool-free installation and disassembly while maintaining secure fixation.
Solution Approach 2:
The invention extracts the screw and screwdriver from the fixing mechanism, replacing them with a pressing portion that directly expands the engaging portion. This removes the need for additional tools and simplifies the installation process while maintaining fixing reliability.
2Reliability
If a standard baffle with predetermined height (121mm or 79.4mm) is used, then the interface card can be fixed to the computer case, but the size is not adjustable and limits the design of light, thin, short, and small computer hosts
Solution Approach 1:
The metal shell is designed with a pressing portion that allows dynamic adjustment of the engaging portion's expansion state. The engaging portion can be expanded when needed for fixation and retracted when not needed, making the baffle height adjustable and adaptable to different interface card heights and computer host design requirements.
Solution Approach 2:
The invention changes the physical state of the engaging portion from fixed to variable by introducing the pressing portion mechanism. This allows the effective height of the baffle to be adjusted according to different interface card heights, enabling adaptability to various design requirements including light, thin, short, and small computer hosts.
3Reliability
If the baffle is fixed to the computer case via a predetermined location, then the interface card can be secured, but the location of the interface slot on the motherboard cannot be freely changed, limiting design flexibility
Solution Approach 1:
The engaging portion's expandable feature allows it to be inserted through the computer case at various locations and then expanded to secure the interface card. This dynamic mechanism enables flexible placement of interface slots on the motherboard without compromising fixing stability, as the engaging portion can be positioned anywhere and then locked in place through expansion.
4Strength
If a thick metal shell is used for fixing the interface card, then the fixing strength is sufficient, but it collides with other members on the motherboard and influences insertion operation
Solution Approach 1:
The metal shell is designed as a thin structure that is sufficient for fixing purposes. The pressing portion mechanism compensates for the reduced thickness by providing a mechanical expansion feature that ensures adequate fixing strength while maintaining a thin profile that does not collide with other motherboard components and allows easy insertion.
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 secure, tool-free installation and disassembly of interface cards, enhances design flexibility by avoiding collisions with other motherboard components, and supports the interface card's stability along multiple axes, aligning with the goals of compact computer host designs.
Implementation Method 1
a first open space is defined between the first pressing portion and a body of the first metal sheet, the first pressing portion having a bottom end connected to the first engaging portion, and a top end bended and extended toward an outside of the first open space; wherein the first pressing portion moves toward an inside of the first open space when the top end of the first pressing portion is pressed, and the first engaging portion engages with the protruding block of the interface slot when the interface card is inserted into the interface slot
Data Source
AI summary
The invention provides a fixed structure for an interface card. The interface card is fixed within an interface slot by the fixed structure. The interface slot is provided on a front side therefore with at least one protruding block. The fixed structure comprises a metal shell, which is assembled to a surface of the interface card, and comprises a pressing portion and an engaging portion. When the interface card is to be inserted into the interface card, the user presses the pressing portion of the metal shell so as to expand the engaging portion. When the interface card has been inserted into the interface card, the user will release the pressing portion of the metal shell so that the engaging portion can engage with the protruding block of the interface slot. Therefore, the interface card is steady fixed within the interface slot by means of the fixed structure.