Spring-Biased Safety Latch for Removable Module Sleds
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Solution Overview
Problem
Existing information handling systems lack an efficient and secure mechanism for removable modules, such as compute modules, which can be easily inserted and removed while ensuring safety and stability during operation.
Innovation Solution
A module sled with a handle and latch mechanism, where the latch is biased towards a locked position, allowing secure insertion and removal of modules within the information handling system, utilizing a spring-biased latch system for locking and unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a removable module sled is used in an information handling system, then ease of operation is improved, but reliability deteriorates due to potential accidental removal or unstable positioning
Solution Approach 1:
The latch mechanism is designed with spring bias that automatically engages the locked position when the module is inserted, and automatically releases when removal force is applied. The system serves itself by using the insertion/removal actions to trigger the locking/unlocking states without requiring separate control systems or user intervention beyond the basic insert/remove motions.
Solution Approach 2:
The latch mechanism transitions between static locked and unlocked states through dynamic spring force. The spring provides continuous force that adapts to the module's position, maintaining reliable locking during operation but allowing easy release when removal is initiated. The mechanical system dynamically responds to applied forces to switch between stable states.
2Reliability
If a latch mechanism is added to secure the module sled, then reliability is improved, but device complexity increases
Solution Approach 1:
The handle is segmented into distinct functional portions: a grip portion for user interaction and a latch portion for securing the module. This segmentation allows each portion to be optimized for its specific function while maintaining overall simplicity. The latch portion is further segmented into engagement and disengagement states controlled by spring force.
Solution Approach 2:
The latch mechanism is extracted as a separate, self-contained mechanical system within the handle assembly. By taking out the locking function as an independent mechanical subsystem with spring bias, the design achieves reliable security without requiring complex electronic controls, motors, or software management. The extracted mechanical latch can be implemented with minimal components.
3Ease of operation
If a spring-biased latch system is used, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The spring bias mechanism allows the latch system to accommodate variations in manufacturing tolerances by adjusting the force parameters. The spring can be designed with specific stiffness and preload values that compensate for dimensional variations in the latch components and module interface. This parameter-based approach enables smooth engagement operation while being tolerant of typical manufacturing precision limitations.
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 mechanism provides a secure and efficient method for inserting and removing modules, ensuring they remain locked in place during operation, enhancing system stability and ease of use.
Implementation Method 1
The latch portion may be biased toward a locked position to hold the module sled within the information handling system
Data Source
AI summary
A module sled of an information handling system includes a main portion and a handle. The main portion includes frame components of the module sled. The handle is in physical communication with the main portion and includes a grip portion and a latch portion. The latch portion is in physical communication with the grip portion. The latch portion is located between the grip portion and the main portion of the module sled. The latch portion is biased toward a locked position to hold the module sled within the information handling system.