Rotating Latch Mechanism for Dense Server Chassis Removal
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Solution Overview
Problem
Traditional modular information handling systems face difficulties in providing sufficient mechanical advantage for easy removal of resources from densely packed server chassis, due to increased server density and size restrictions.
Innovation Solution
A gear train side latching mechanism with a rotatable latch and purchase system, allowing the latch to rotate from a closed to an open position and the purchase to provide mechanical advantage for removal, facilitating easier extraction of information handling resources from the chassis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If server density is increased to expand payload capacity, then the number of information handling resources per chassis is improved, but the mechanical advantage for removal of resources deteriorates due to size restrictions
Solution Approach 1:
The latch mechanism transitions from a linear pull operation to a rotational motion around a pivot axis. The purchase arm rotates from a retracted position to an extended position, converting a difficult linear extraction force into a manageable rotational torque operation. This dimensional change in motion type allows sufficient mechanical advantage to be achieved within the constrained vertical space of high-density server chassis.
2Quantity of substance
If server width is increased to allow more payload, then the capacity for information handling resources is improved, but the height and size restrictions worsen the difficulty of providing mechanical advantage
Solution Approach 1:
The purchase arm is designed to nest within or alongside the information handling resource housing when in the retracted position. The purchase rotates from a compact stowed position adjacent to the resource to an extended operational position during removal. This nesting arrangement allows the mechanism to achieve its full rotational lever arm length only when needed, while maintaining a compact profile during normal operation to satisfy chassis height constraints.
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 reduces the effort required for removing information handling resources by providing a mechanical advantage, enhancing ease of access and handling in densely configured server environments.
Implementation Method 1
the purchase provides a mechanical advantage for removal of the information handling resource from an information handling system
Data Source
AI summary
An information handling resource may include a housing configured to enclose components of the information handling resource and a latch comprising a body and a purchase. The body may be coupled to the housing such that the latch is rotatable relative to the housing about an axis parallel to an exterior face of the housing and further rotatable in a plane perpendicular to the exterior face such that the body is rotatable from a closed position relative to the housing to an open position relative to the housing and vice versa. The purchase may be coupled to the body such that the purchase is rotatable relative to the body about an axis parallel to the plane in which the body rotates relative to the housing such that the purchase is rotatable from a first position relative to the body to a second position relative to the body and vice versa.