Spring-Loaded Lock Pin for Controlled Module Removal
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Solution Overview
Problem
Improper ordering of connection or disconnection of electronic components in a computer chassis can cause damage to connectors and internal electronics, necessitating a controlled and secure method for removing modules with electronic components.
Innovation Solution
A locking mechanism featuring a lock pin with a spring stopper and elongated shaft, which compresses to prevent removal of a module until another module is fully inserted or removed, ensuring electrical connections are maintained or disconnected in an orderly fashion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a module is removed from the computer chassis without proper control, then removal speed is fast, but damage to connectors and internal electronics occurs
Solution Approach 1:
The lock pin mechanism performs preliminary action by automatically engaging the locking position before module removal begins. The spring-loaded lock pin is pre-positioned to engage with the module's connector housing, ensuring that the disconnection sequence is initiated correctly before any physical separation occurs, thus preventing damage while maintaining removal efficiency
Solution Approach 2:
The lock pin acts as an intermediary mechanism between the module and the chassis. It mediates the disconnection process by controlling the sequence of events: first allowing connector engagement, then enabling controlled disengagement. This intermediary control ensures that electrical connections are properly terminated before the module fully separates, preventing connector damage
2Reliability
If a locking mechanism is added to control module removal, then connector protection is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is designed to be self-service through the spring-loaded lock pin that automatically engages and disengages based on module insertion and removal. The spring force provides automatic reset functionality, eliminating the need for additional actuators or control systems. This self-service approach maintains high reliability while minimizing added complexity
Solution Approach 2:
The locking function is extracted as a separate, dedicated mechanism (the lock pin) rather than being integrated into the main connector structure. This extraction allows the locking mechanism to be optimized independently - using a simple spring-loaded design that provides robust protection without complicating the overall connector design
3Reliability
If the lock pin extends through the hole in the removable module, then module removal is prevented, but ease of operation decreases
Solution Approach 1:
The lock pin is designed as a dynamic element that changes position based on module insertion status. During insertion, the lock pin retracts to allow the module to engage. During removal, it extends to prevent accidental disconnection. This dynamic behavior, driven by spring force and module positioning, maintains secure locking while preserving ease of operation
Solution Approach 2:
The lock pin applies preliminary anti-action by automatically engaging the locked position before the module can be accidentally removed. The spring mechanism ensures the lock pin is ready to engage immediately when the module is inserted, preventing any unintended disconnection attempts while still allowing intentional removal when needed
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 locking mechanism ensures safe and controlled removal of modules, preventing damage by maintaining or disconnecting electrical connections as needed, thereby protecting the electronic components and the internal electronics of the computer chassis.
Implementation Method 1
the spring is configured to compress between the spring stopper and a fixed bracket in the computer chassis
Data Source
AI summary
A locking mechanism for a computing device controls movement of a removable module within a computer chassis. The locking mechanism comprises a lock pin, a head, and a spring stopper. The lock pin includes an elongated shaft and a head. The spring stopper is disposed on the elongated shaft. The spring is disposed about the elongated shaft such that the spring extends from the spring stopper toward an end of the elongated shaft. As the lock pin moves along a longitudinal axis of the elongated shaft from a first position to a second position, the spring is configured to compress between the spring stopper and a fixed bracket in the computer chassis. The opposite second end extends through a hole in the removable module, thereby preventing the removable module from being removed from the computer chassis.