Curved PSU Faceplate Vent Screen Mounting Without Locking Holes
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Solution Overview
Problem
Conventional power supply unit ventilation screens are aesthetically unpleasing due to locking holes and have a complicated installation process, and flat metal screens lack flexibility requiring additional installation steps.
Innovation Solution
A fixing structure with a curved faceplate body and flexible ventilation screen featuring positioning grooves and flanges allows for easy installation by curving and securing the screen into place without bolts, enhancing aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the ventilation screen is made of a flat metal plate, then it is structurally simple, but it lacks flexibility and requires a wider predetermined gap for installation
Solution Approach 1:
The ventilation screen changes from a flat metal plate to a curved profile, fundamentally altering its geometric parameter. This curvature provides flexibility while maintaining structural integrity, allowing the screen to be installed in the predetermined gap without requiring it to be wider, thus resolving the contradiction between structural simplicity and installation ease
2Reliability
If locking members are used to firmly fix the ventilation screen, then the attachment is secure, but locking holes must be bored which spoils esthetic appearance
Solution Approach 1:
The locking members are completely removed from the design. Instead of using separate fastening components that require holes, the invention uses the curved profile of the ventilation screen itself to engage with the positioning members, extracting the fastening function from a separate component and integrating it into the screen's geometry, thus preserving aesthetic appearance while maintaining secure attachment
Solution Approach 2:
The fastening function is merged with the ventilation screen structure itself. The curved profile serves dual purposes: maintaining the aesthetic appearance and providing the mechanical engagement feature that replaces separate locking members, combining form and function in a single integrated design
3Reliability
If positioning members are deformed by applying external force to fix the ventilation screen, then the screen can be secured, but an additional installation process is required
Solution Approach 1:
The installation mechanism is inverted: instead of actively deforming positioning members to secure the screen, the curved ventilation screen is designed to passively engage with the positioning members through its own elastic deformation when inserted, reversing the cause-and-effect relationship and eliminating the need for additional fastening operations
Data Source
AI summary
A fixing structure for a faceplate ventilation screen of a power supply unit includes a faceplate body and a ventilation screen. The faceplate body has a top end and a bottom end each provided with an extension plate transversely extending from an inner side thereof. The faceplate body further has an opening. The extension plates have opposite inner sides each provided with a positioning flange extending inwardly at a location close to the opening. A positioning groove is formed between the positioning flange and the faceplate body. The ventilation screen is disposed on the opening. The ventilation screen has a curved profile corresponding to that of the faceplate body. The ventilation screen is flexible and deformable. The ventilation screen is attached and secured to the faceplate body by curving the ventilation screen for top and bottom ends of the ventilation screen to be placed into the respective positioning grooves.