Thin-Film Vibrational Isolators for Compact Information Handling Chassis

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Solution Overview

Problem

Existing vibrational isolators in information handling systems require significant space, which can be a challenge in compact designs, as they need to absorb vibrational energy generated by cooling components like air movers while minimizing noise and performance degradation.

Innovation Solution

A vibrational isolator with a supporting section and attachment members that mechanically couple to a chassis, using thin, flexible materials like biaxially-oriented polyethylene terephthalate (boPET) to suspend and isolate vibration-generating equipment, reducing the space required for effective isolation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If traditional grommet-based vibrational isolators are used, then vibrational energy is absorbed and isolated, but significant space (4-10 millimeters) is required in the support structure

Engineering Contradiction:
Improvevibrational energy transferVSAvoidspace required for isolator
Core Design Contradiction:
Object-affected harmful factorsVSVolume of moving object

Solution Approach 1:

The patent applies flexible thin film material (boPET) to create a vibrational isolator that is significantly thinner than traditional grommet-based isolators. The thin film material provides the necessary vibration isolation properties while occupying minimal space within the support structure, directly resolving the contradiction between effective vibration isolation and space consumption.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent changes the physical parameters of the isolator by using thin film material with specific mechanical properties (flexibility, damping characteristics) that enable effective vibration isolation in a reduced thickness profile. This parameter change allows the isolator to maintain its isolation function while reducing the space it occupies from 4-10 millimeters to a much thinner profile.

Inventive Principle:
Principle #35Parameter changes

2Temperature

If air movers are used to cool information handling components, then heat dissipation is improved, but vibrational energy is generated that degrades performance of other components

Engineering Contradiction:
Improvecomponent coolingVSAvoidvibrational energy
Core Design Contradiction:
TemperatureVSObject-generated harmful factors

Solution Approach 1:

The thin film vibrational isolator serves as an intermediary element between the air mover and the support structure. It allows the air mover to operate freely for effective cooling while simultaneously absorbing and isolating the vibrational energy it generates, preventing transmission to other components. The isolator mediates between the cooling function and vibration generation, enabling both to coexist without mutual degradation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If thicker vibrational isolators are used, then vibration isolation effectiveness is improved, but the space available for other components is reduced

Engineering Contradiction:
Improvevibration isolation effectivenessVSAvoidavailable space in support structure
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent employs flexible thin film material that achieves effective vibration isolation in a dramatically reduced thickness compared to traditional isolators. This thin film approach maintains the necessary isolation effectiveness while preserving maximum available space within the support structure for other components, directly resolving the space constraint issue.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent utilizes advanced material parameters of thin film boPET that provide sufficient damping and isolation properties despite the reduced thickness. By changing from traditional thick grommet materials to thin film materials with optimized mechanical properties, the system achieves comparable or superior isolation effectiveness with minimal space consumption.

Inventive Principle:
Principle #35Parameter changes

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 solution effectively reduces the space needed for vibrational isolation, minimizing the transfer of vibrational energy and noise, thus enhancing the performance and compactness of information handling systems.

Implementation Method 1

such vibrational isolators prevent an air mover from coming into direct contact with such support structures and serve to absorb vibrational energy generated by the air mover

Methodology Applied
Scientific EffectVibration absorption: Damping

Implementation Method 2

at least one attachment member mechanically coupled to the at least one supporting section and configured to mechanically couple to a chassis

Methodology Applied
Scientific EffectMechanical coupling: Mechanical Force

Data Source

PatentUS9723751B2Systems and methods for vibrational isolation of information handling resources
Publication Date: 2017.08.01 DELL PROD LP
  • US9723751B2 patent drawing
  • US9723751B2 patent drawing
  • US9723751B2 patent drawing

AI summary

In accordance with embodiments of the present disclosure, a vibrational isolator may include at least one supporting section and at least one attachment member mechanically coupled to the at least one supporting section and configured to mechanically couple to a chassis, such that when disposed in a chassis, the at least one supporting section suspends from the chassis and is configured to support vibration-generating equipment.In accordance with these and other embodiments of the present disclosure, a method may include forming at least one supporting section and forming at least one attachment member mechanically coupled to the at least one supporting section and configured to mechanically couple to a chassis, such that when disposed in a chassis, the at least one supporting section suspends from the chassis and is configured to support vibration-generating equipment.