Dual Cover Casing Locking Structure for Space-Saving Server Chassis
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Solution Overview
Problem
Conventional electronic device casings, such as server chassis, require separate locking mechanisms for each top cover piece, occupying internal space and increasing manufacturing costs.
Innovation Solution
A single cover plate with a locking mechanism and a second cover plate without fastening members, where the second cover plate is restricted by hook members of the first cover plate, allowing both to be locked together, reducing the need for additional fastening members and space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate locking mechanisms are provided on both top cover pieces, then each cover can be independently secured, but the internal space is occupied and manufacturing cost increases
Solution Approach 1:
The patent merges the locking function into a single mechanism on one top cover piece, while the other cover piece uses hook members that engage with the first cover's locking mechanism. This combining approach eliminates the need for separate locking mechanisms on both covers, freeing internal space while maintaining secure locking of both covers to the case body
Solution Approach 2:
The first cover piece's locking mechanism serves multiple functions: it locks the first cover to the case body and simultaneously locks the second cover to the case body through engagement with the second cover's hook members. This multi-functionality reduces the total number of locking mechanisms needed while maintaining reliable securing of both covers
2Reliability
If separate locking mechanisms are provided on both top cover pieces, then each cover can be independently secured, but manufacturing cost increases
Solution Approach 1:
The patent combines the locking function into a single mechanism on one top cover piece, reducing the total number of locking mechanisms from two to one. This reduces manufacturing costs while maintaining reliable locking of both covers through the shared locking mechanism and hook member engagement system
3Reliability
If two-piece top cover with separate locking mechanisms is used, then each cover is securely locked, but the unlocking operation process becomes complex
Solution Approach 1:
The patent merges the locking and unlocking operations into a single action on one cover piece. When the user operates the locking mechanism on the first cover, both the first and second covers are simultaneously locked or unlocked together, eliminating the need for separate unlocking operations while maintaining secure locking
Data Source
AI summary
An electronic device casing includes a case body, a first cover plate, and a second cover plate. The case body has a pair of side plates. The first cover plate is assembled to the case body and includes a fastening member and a first hook member. The fastening member is movably engaged with the side plate, so that the first cover plate and the case body are in a locked or an unlocked state. The first and second cover plates jointly cover the case body. The second cover plate includes at least one second hook member. In the locked state, the second hook member is engaged with the first hook member to restrict displacement of the second cover plate relative to the case body. In the unlocked state, the first cover plate can drive the second cover plate to move relative to the case body.