Rack Node Wedge Block Assembly for Shock-Stable Serviceability

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current computing system environments face challenges in maintaining structural integrity during abnormal shocks and vibrations, while existing solutions often compromise serviceability and are inadequate for long-term stability.

Innovation Solution

A wedge block mechanism and mounting sub-assembly that secures to the computer frame, allowing for easy engagement and disengagement, providing structural support without hindering serviceability, using a tray with guides and a pivot mechanism to lock nodes in place.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If node lock mechanisms or frame ties are used to stabilize the computing environment during vibrations, then structural integrity is improved, but ease of serviceability deteriorates

Engineering Contradiction:
Improvestructural integrityVSAvoidease of serviceability
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent employs a dynamic locking mechanism that can transition between locked and unlocked states. The wedge block mechanism allows the node to be securely locked during vibrations for structural integrity, and easily unlocked when service is needed, providing adaptability between stability and serviceability requirements

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The wedge block acts as an intermediary element between the node and the frame. It transfers and distributes vibration forces while allowing controlled movement, enabling the node to remain stabilized during earthquakes while maintaining accessibility for service operations through the guide structure

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If bolt schemes are used to secure nodes to the frame, then structural integrity is improved, but ease of repair deteriorates

Engineering Contradiction:
Improvestructural integrityVSAvoidease of repair
Core Design Contradiction:
StrengthVSEase of repair

Solution Approach 1:

The patent divides the securing mechanism into separate functional components: the wedge block for locking, the guide structure for positioning, and the rod structure for actuation. This segmentation allows the node to be securely attached during operation while enabling easy removal and replacement without affecting other components

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mechanism transitions from a static bolted connection to a dynamic wedge-based locking system that can be quickly engaged and disengaged. The rod structure with pivot enables rapid actuation of the wedge block, allowing technicians to secure or remove nodes quickly without complex tooling or multiple fastening steps

Inventive Principle:
Principle #15Dynamics

3Area of stationary object

If components are packaged together in a single assembly to reduce footprint, then space utilization is improved, but reliability deteriorates due to increased complexity of mechanical and structural integrity

Engineering Contradiction:
ImprovefootprintVSAvoidmechanical and structural integrity
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The patent applies localized structural enhancements at critical points within the compact assembly. The guide structure and wedge block mechanism are positioned at specific locations to provide targeted vibration isolation and structural support, maintaining reliability without requiring the entire assembly to be oversized

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The guide structure serves as an intermediary element that facilitates precise alignment and controlled movement within the compact packaging. It enables multiple components to be densely arranged while maintaining adequate clearance and access paths for service operations, resolving the conflict between compactness and serviceability

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enhances structural integrity by preventing node motion during shocks and vibrations while allowing concurrent serviceability and installation without disrupting system operation.

Implementation Method 1

The rod structure is secured at one end to a pivot and at another end to a fastener, such that actuating the fastener can move the pivot from a first to a second position and cause the assembly and mechanism to engage and disengage from the computer frame

Methodology Applied
Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS20090218921A1Assembly and Method For Enhancing Structural Integrity and Improving Serviceability of Electronic Card Disposed In A Computing Environment
Publication Date: 2009.09.03 X CORP
  • US20090218921A1 patent drawing
  • US20090218921A1 patent drawing
  • US20090218921A1 patent drawing

AI summary

An assembly and method for securing and supporting electronic components in a computer node disposed on a computer rack. The method comprises the steps of first disposing a tray having one or more wedge block assemblies in the rear of said rack such that each wedge block assembly can be moved under and engaged with each node. The wedge block mechanism is retained from side to side using guide brackets. The mechanism and the tray are then torques into place by using incorporated hard stop feature on said tray. The nodes can then be engaged and disengaged through the engaging and disengaging of the wedge block assembly. This is done by using a rod that is connected to a fastener one end and to a pivot at another end and is integrated into the wedge block mechanism. Once the fastener is moved the pivot is also moved causing the mating and unmating of the node.