Rack Module Ejection Mechanism Preserving Structural Integrity
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Solution Overview
Problem
The existing module ejection mechanisms for rack-mounted server stations damage the rack structure and reduce its structural strength due to the need for notches to facilitate manual ejection of expansion cards, which limits space and efficiency.
Innovation Solution
A module ejection mechanism comprising a tray, a linkage member, and an operating member that allows for the ejection of expansion modules without damaging the rack, utilizing a pivoting and sliding mechanism to move the tray and drive the expansion module out, ensuring the rack's integrity and structural strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If notches are made in the rack base and upper cover to facilitate manual ejection of expansion cards, then the ease of operation is improved, but the structural strength of the rack is reduced
Solution Approach 1:
The ejection function is segmented from the rack structure itself. Instead of modifying the rack with notches, a separate tray structure is introduced that can be independently operated. The tray includes an ejection plate and linkage mechanism that work together to achieve card ejection without compromising the rack's structural integrity.
Solution Approach 2:
The tray acts as an intermediary mechanism between the user and the expansion card. The operating member connects to the linkage member, which in turn connects to the ejection plate on the tray. This intermediate mechanism transfers the ejection force without requiring direct access through notches in the rack, thus preserving structural strength while maintaining ease of operation.
2Volume of moving object
If a compact ejection mechanism is used to preserve rack space, then the volume of the rack is optimized, but the device complexity increases
Solution Approach 1:
Multiple functions are merged into the tray structure. The tray serves as both the mounting platform for the expansion card and the ejection mechanism carrier. The linkage member combines pivoting and sliding motions to achieve ejection, eliminating the need for separate complex mechanisms. The operating member integrates the user interface directly into the tray assembly, reducing overall device complexity while maintaining compactness.
Solution Approach 2:
The linkage member utilizes dynamic motion transformation, converting the linear motion of the operating member into rotational pivoting motion, which then translates to the ejection motion of the tray. This dynamic mechanism allows for compact space utilization while achieving the ejection function through a relatively simple structure that adapts its configuration during operation.
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
Enables the ejection of expansion modules without compromising the rack's structure, optimizing space usage and assembly, while maintaining the rack's integrity and structural strength by using a compact and efficient mechanism.
Implementation Method 1
The linkage member includes a pivoting portion, a linkage portion, and a resisting portion. The pivoting portion is pivoted on the rack. When the operating member moves in an operating direction, the operating member is linked with the linkage portion to pivot the linkage member.
Implementation Method 2
The tray is slidably disposed on the rack in an ejection direction. The resisting portion is connected to the tray in a first pivoting-sliding relationship.
Data Source
AI summary
A module ejection mechanism is adapted to be disposed on a rack and carries an expansion module. The module ejection mechanism includes a tray, a linkage member, and an operating member. When one end of the operating member outside the rack is pulled, the other end of the operating member drives the linkage member to pivot. When the linkage member pivots, the linkage member makes the tray move in an ejection direction. When the tray moves in the ejection direction, an abutting element of the tray is adapted to eject the expansion module from the rack.