Foolproof Frame Assembly for Server Chassis Installation
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Solution Overview
Problem
The complexity of electronic device assembly leads to increased manufacturing costs due to the need for multiple foolproof structures to ensure correct installation, which can result in improper installation and device malfunction, such as incorrect orientation of heat dissipation fans.
Innovation Solution
A foolproof frame assembly for a server chassis featuring mirror-symmetrical frames with shared manufacturing molds, utilizing blocking components and foolproof components to prevent incorrect installation by blocking mounting side plates, ensuring proper orientation and reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple different foolproof structures are added to ensure correct installation in every step of the assembling process, then the reliability of proper installation is improved, but the manufacturing cost increases due to requiring different molds for each frame
Solution Approach 1:
The patent applies asymmetry by providing different foolproof structures (first foolproof structure vs. second foolproof structure) on opposite sides of the case. Specifically, the first frame has a foolproof structure that blocks one through hole, while the second frame has a different foolproof structure that blocks the other through hole. This asymmetric design ensures that each frame can only be installed in its correct position, preventing improper installation, while still allowing both frames to be manufactured using the same mold.
2Reliability
If additional foolproof structures are added to prevent improper installation, then the reliability of the assembly process is improved, but the device complexity increases
Solution Approach 1:
The patent segments the foolproof protection function into two distinct parts: the first foolproof structure on the first frame and the second foolproof structure on the second frame. Each foolproof structure independently blocks specific through holes to prevent incorrect installation of its corresponding frame. This segmentation allows the complexity to be distributed across multiple simple components rather than requiring a single complex foolproof mechanism.
Data Source
AI summary
A foolproof frame assembly includes a blocking component fixed on a case, and first and second frames disposed on opposite sides of the case. Each of the first and second frames has a foolproof component fixed to one of two side plates thereof and blocking one of two through holes on its bottom plate. When the first frame is in a first mounting position, the blocking component passes through another through hole and form a space with another side plate of the first frame for one of two mounting side plates of the mounting frame to be disposed therethrough. When the second frame is in the first mounting position, a space occupied by its foolproof component overlaps a space occupied by the blocking component. When the first and second frames are respectively in the first and second mounting positions, the foolproof components block the two mounting side plates.