Flexible Filter Assembly for Computing System Airflow Management

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Solution Overview

Problem

Existing computing systems face overheating issues due to dust accumulation in cooling equipment and airflow paths, leading to reduced thermal performance and potential thermal failure, necessitating frequent shutdowns for cleaning or filter replacement, which can obstruct access to hot-swappable components.

Innovation Solution

A flexible filter assembly that slides into the chassis from outside, splitting it into two volume portions and allowing clean air to reach electronic components without obstructing access to hot-swappable components, coupled with a manageability controller that alerts for filter replacement based on runtime, temperature, and airflow differences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dust filters are installed at the air inlet side to trap dust, then cooling efficiency is improved, but access to hot-swappable components is obstructed

Engineering Contradiction:
Improvecooling efficiencyVSAvoidaccess to hot-swappable components
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The filter assembly is designed as a separate, detachable module that can be independently removed from the chassis. This segmentation allows the filter to be maintained without obstructing access to hot-swappable components, as the filter assembly can be detached and set aside before component replacement operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The filter assembly incorporates a movable support structure with guide rails that enable dynamic positioning and easy removal. The assembly can be slid into and out of the chassis along the guide rails, transforming from a static obstruction to a dynamically accessible component that can be quickly deployed and removed as needed.

Inventive Principle:
Principle #15Dynamics

2Reliability

If traditional fixed filters are used, then dust is filtered effectively, but frequent shutdowns are required for filter replacement

Engineering Contradiction:
Improvedust filtrationVSAvoidsystem availability
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The filter assembly is designed with movable support and guide rail mechanisms that enable easy sliding insertion and removal. This dynamic design allows filter replacement to be performed quickly without requiring system shutdowns, maintaining continuous operation while ensuring effective dust filtration through the replaceable filter media.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The filter assembly is designed as a disposable or regenerable component that can be easily removed and replaced. The support structure and guide rails facilitate quick detachment of used filters and installation of fresh ones, enabling rapid maintenance cycles that minimize system downtime and maintain high productivity.

Inventive Principle:
Principle #34Discarding and recovering

3Object-affected harmful factors

If filters are positioned at the front side, then dust is trapped effectively, but thermal performance degrades due to dust accumulation in airflow paths

Engineering Contradiction:
Improvedust trappingVSAvoidthermal performance
Core Design Contradiction:
Object-affected harmful factorsVSTemperature

Solution Approach 1:

The filter assembly acts as an intermediary component positioned at the air inlet, capturing dust particles before they can enter and accumulate in the internal airflow paths. By intercepting dust at this intermediate stage, the system maintains clean airflow channels and preserves thermal performance while still achieving effective dust trapping.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The filter assembly performs preliminary dust removal at the air inlet side, preventing dust from reaching and accumulating in critical airflow paths and cooling equipment. This preliminary action protects downstream components from dust fouling, maintaining thermal performance without compromising dust trapping effectiveness.

Inventive Principle:
Principle #10Preliminary action

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

Enables continuous operation without shutdowns for filter replacement, maintains thermal performance by preventing dust accumulation, and ensures easy access to hot-swappable components by locating the filter assembly offset from the front side.

Implementation Method 1

The flexible filter cleans the flow of air and directs clean air towards the plurality of first electronic components

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentUS12004317B2Computing system having a flexible filter assembly
Publication Date: 2024.06.04 HEWLETT PACKARD ENTERPRISE DEV LP
  • US12004317B2 patent drawing
  • US12004317B2 patent drawing
  • US12004317B2 patent drawing

AI summary

Example implementations relate to a computing system having a flexible filter assembly. The computing system includes a chassis having an internal volume, a pair of guide rails, a flexible filter assembly, and a plurality of first electronic components. The pair of guide rails is disposed spaced apart from each other and coupled to the chassis. The flexible filter assembly is disposed within and connected to the chassis via the pair of guide rails. The flexible filter assembly splits the internal volume into first and second volume portions. The first volume portion is located downstream relative to flow of supply air. The flexible filter assembly slides into the chassis along the pair of guide rails to detachably connect to the chassis. The flexible filter assembly cleans the supply air and directs clean air towards the plurality of first electronic components disposed in the first volume portion and coupled to the chassis.