Tool-Free Interface Card Fastener Mechanism
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Solution Overview
Problem
The use of screws to fasten interface cards in computer cases is inconvenient and costly, as it requires tools, can lead to lost or damaged screws, and increases production costs due to the number of screws needed.
Innovation Solution
A mechanism using a pressing surface to secure the extension plate of the interface card against a connecting surface on the computer case, allowing for tool-free manual fastening and release, reducing the need for screws and minimizing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fasten the interface card, then the interface card is fastened stably, but a screwdriver is always necessary and it is time-consuming to lock the screws
Solution Approach 1:
The pressing plate is designed to be manually operable without requiring external tools like screwdrivers. Users can directly press the pressing plate against the positioning portion to secure the interface card, making the fastening process self-service and tool-free.
Solution Approach 2:
The invention extracts and eliminates the need for screws and screwdrivers from the fastening system. By using a pressing plate that directly engages with the positioning portion, the complex screw-based fastening mechanism is replaced with a simple press-fit design.
2Reliability
If screws are used to fasten the interface card, then the interface card is fastened stably, but the number of screws increases production costs
Solution Approach 1:
The invention removes screws entirely from the fastening system, replacing them with a pressing plate mechanism. This extraction of the screw component reduces the number of parts needed, simplifies manufacturing, and lowers production costs while maintaining fastening stability.
Solution Approach 2:
The pressing plate combines multiple functions into a single component: it provides the fastening force, guides the interface card into position, and secures the connection. This merging of functions reduces the total number of components needed compared to a screw-based system.
3Reliability
If screws are used to fasten the interface card, then the interface card is fastened stably, but dropped screws may cause accidents or get lost
Solution Approach 1:
The invention extracts and eliminates screws from the fastening system, replacing them with a pressing plate that remains attached to the computer case. This eliminates the hazard of dropped screws causing damage or getting lost, while maintaining stable fastening through the pressing mechanism.
4Reliability
If screws are used to fasten the interface card, then the interface card is fastened stably, but it is time-consuming to screw the screws for several turns to lock the screws
Solution Approach 1:
The invention removes the multi-turn screwing action entirely by replacing screws with a pressing plate. The interface card is secured in a single pressing motion rather than requiring several turns of screwing, dramatically reducing the time needed for fastening while maintaining stability.
Solution Approach 2:
The pressing plate mechanism allows the fastening action to be completed in a single rapid motion, skipping the time-consuming multi-turn screwing process. The interface card is quickly secured by simply pressing the plate into place, making the installation process much faster.
Data Source
AI summary
A computer case with a function for fastening an interface card having an extension piece is provided. The computer case includes a positioning portion protruding from a surface of the computer case and having a connecting surface, and an interface card fastener mounted on the surface of the computer case and having a pressing surface pressing the extension piece of the interface card against the connecting surface.