Chassis Locking Mechanism for Circuit Board Retention
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Solution Overview
Problem
Circuit boards in server devices are difficult to secure within a chassis due to their strip-like shape and thickness, leading to potential damage during assembly and operation, and the force required for mounting or dismounting hard disks can easily loosen the board.
Innovation Solution
A chassis design comprising a base frame, partition panels, a cover frame, and locking pieces that securely retain the circuit board through fixing pieces and ridges, hooking portions, and rotatable locking pieces, ensuring the board is locked or unlocked in a simplified manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the circuit board is made with strip-like shape and certain thickness for functional requirements, then the electrical connection capability is improved, but the ease of securing the board inside the chassis deteriorates
Solution Approach 1:
The chassis is divided into multiple functional components: base frame for structural support, partition panels for organizing data access devices, and cover frame for protection. The locking pieces are separate detachable elements that can be independently operated to secure or release the circuit board, making the securing process easier despite the board's rigid strip-like structure
Solution Approach 2:
The locking pieces are designed to be rotatable relative to the cover frame, transitioning between a locked position (pressing against the circuit board) and an unlocked position (rotated away). This dynamic mechanism allows easy installation and removal of the circuit board while maintaining secure fixation during operation
2Reliability
If the circuit board is secured tightly to prevent damage, then the protection of the board is improved, but the ease of mounting and dismounting the board deteriorates
Solution Approach 1:
The locking pieces provide a dynamic securing mechanism that can be easily switched between locked and unlocked states through rotation. This allows the circuit board to be tightly secured during operation while enabling quick and easy mounting and dismounting when needed
Solution Approach 2:
The locking pieces are designed to automatically press against and secure the circuit board when in the locked position, providing self-service protection without requiring additional fastening operations. The rotatable design allows single-handed operation for mounting and dismounting
3Stability of the object's composition
If the locking mechanism is made robust to secure the circuit board firmly, then the stability of the board is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is segmented into multiple independent locking pieces rather than one complex centralized lock. Each locking piece is a simple rotatable element that can be independently operated, reducing the complexity of individual components while collectively providing robust stabilization of the circuit board
Data Source
AI summary
The instant disclosure relates to a data access module, which includes a plurality of data access devices, a circuit board defining a plurality of holes, a base frame, a plurality of partition panels, a cover frame, and a plurality of locking pieces. The base frame includes a bottom plate and a pair of sidewalls. A plurality of fixing pieces and ridges are formed on the bottom plate. The partition panels are directed along the retrieving direction of the data access devices and fixed on the bottom plate. Each partition panel has a hooking portion for engaging the corresponding hole of the circuit board. The cover frame includes a top plate and a pair of side plates. The locking pieces are rotatably disposed on the cover frame. Each locking piece has a pressing portion selectively pressing against the circuit board. A chassis is also discussed.