Carriage Lock Module With Damping for Chassis Vibration Isolation
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Solution Overview
Problem
Existing server designs face issues with vibrations causing solder cracks and damage to circuit boards due to loose tray-casing fixation, which allows vibrations to transmit through the chassis.
Innovation Solution
A lock module with a damping member between a bracket and fixing structure to absorb vibrations, combined with a lock member to securely attach the carriage to the chassis, allowing easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tray adopts a toolless design for easy assembly and disassembly, then the ease of operation is improved, but the fixation strength between the tray and chassis casing deteriorates, allowing vibration transmission
Solution Approach 1:
The locking mechanism is divided into separate components: a lock member on the tray and a corresponding locking structure on the chassis casing. These segments engage with each other to provide strong fixation while maintaining toolless operation. The segmentation allows the tray to be securely locked during operation yet easily released when needed.
Solution Approach 2:
The lock member is designed to be movable, transitioning between a locked position (engaging with the locking structure) and an unlocked position (disengaged). This dynamic capability enables toolless assembly and disassembly while providing strong fixation when locked, resolving the contradiction between ease of operation and fixation strength.
2Ease of operation
If the tray is loosely fixed to the chassis casing for easy removal, then the ease of operation is improved, but the reliability of the circuit board protection deteriorates due to vibration transmission
Solution Approach 1:
The lock member provides a dynamic locking mechanism that can be engaged to secure the tray firmly to the chassis casing during operation, protecting the circuit board from vibrations. When removal is needed, the lock member can be easily disengaged. This dynamic capability resolves the contradiction between easy removal and reliable protection.
Solution Approach 2:
The lock member acts as an intermediary between the tray and chassis casing, providing a controlled connection. When engaged, it firmly secures the tray to protect against vibrations; when disengaged, it allows easy removal. This intermediary mechanism enables both reliable protection and ease of operation at different times.
3Reliability
If strong fixation is used between the tray and chassis casing to prevent vibration transmission, then the reliability of circuit board protection is improved, but the ease of assembly and disassembly deteriorates
Solution Approach 1:
The fixation system is segmented into the lock member and locking structure, allowing strong fixation when engaged while maintaining easy disassembly capability. The segmented design enables the tray to be firmly secured during operation yet easily removed when needed, resolving the contradiction between reliable protection and ease of operation.
Solution Approach 2:
The lock member provides dynamic fixation strength - strong when engaged to protect the circuit board from vibrations, and easily releasable when disassembly is needed. This dynamic characteristic resolves the contradiction by providing strong fixation only when required for protection, while maintaining ease of operation for assembly and disassembly.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces vibration transmission to circuit boards, preventing damage while enabling convenient detachment and attachment of the carriage to the chassis.
Implementation Method 1
The damping member is capable of effectively absorbing vibrations transmitted from the casing of the chassis and the bracket
Data Source
AI summary
A chassis includes a casing and a carriage. The casing has an engaging portion. The carriage includes a housing and a lock module. The lock module includes a bracket, a damping member, a fixing structure and a lock member. The bracket has an accommodating portion and an engaging recess. The damping member is disposed in the accommodating portion. The damping member has a hole portion. The fixing structure is disposed in the hole portion. The lock module is fixed on the housing via the fixing structure. The lock member is movably disposed on the bracket. When the engaging portion is located in the engaging recess and the lock member is located in the engaging recess, the lock member restrains the engaging portion in the engaging recess to lock the carriage on the casing.