Ejector Latch Assembly with Segmented Handle for PCB Access
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Solution Overview
Problem
Existing ejector mechanisms for securing printed circuit boards (PCBs) within server racks or cabinets lack efficient access and secure positioning, especially as the diversity and number of PCBs increase, leading to potential instability in electrical connections.
Innovation Solution
The development of an ejector latch assembly with a base and handle system, featuring a first and second handle segment and a release structure, allowing for secure positioning and easy access to PCBs by pivoting the handle segments between closed, extended, and retracted positions, and enabling the release structure to move between engaged and released positions for secure ejection or insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional single-handle ejector mechanism is used, then the structure is simple, but the access to the board is limited and positioning is less secure
Solution Approach 1:
The handle is divided into two separate segments: a first handle segment that provides primary support and positioning, and a second handle segment that can be independently positioned to improve access to the board. This segmentation allows each segment to perform its specific function optimally while maintaining overall structural integrity.
Solution Approach 2:
The second handle segment is designed to be movable relative to the first handle segment, allowing it to transition between different positions (attached and detached states). This dynamic configuration enables the handle structure to adapt to different operational requirements, providing improved access when needed while maintaining security when the segments are attached.
2Ease of operation
If the handle structure is made more complex to improve access, then access to the board improves, but the reliability of electrical connections may be compromised
Solution Approach 1:
The movable second handle segment allows the system to dynamically switch between two operational modes: when attached to the first handle segment, it provides improved access while maintaining the secure positioning needed for reliable electrical connections; when detached, it provides maximum access without compromising connection integrity since the first handle segment remains securely in place.
Solution Approach 2:
By separating the handle into two segments, the invention allows the first handle segment to maintain its primary function of securing the board and maintaining electrical connections, while the second handle segment provides additional access capability when needed, thus resolving the conflict between access and reliability.
3Ease of operation
If a release structure is added to enable easy ejection, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The release structure is designed to be actuated by the user through simple movement of the second handle segment relative to the first handle segment. The mechanical interaction between the segments themselves provides the ejection function, eliminating the need for separate complex release mechanisms while still achieving easy board removal.
Data Source
AI summary
Ejector latch assemblies for securing a board within a frame and a computer assembly using the ejector latch assembly are disclosed. An ejector latch assembly includes a base and a handle pivotably coupled to the base. The handle includes a first handle segment, a second handle segment and a release structure. The first handle segment is coupled to the base. The base is coupled to a board. The first handle segment is pivotable relative to the base between a closed and an open position. The first handle segment is coupled to the second handle segment. The second handle portion is pivotable relative to the first handle segment between an extended and a retracted position. The release structure is movable between an engaged and a released position. When in the engaged position, the release structure prevents pivoting of the second handle segment relative to the first handle segment.