Cable Channel Sleeve Sealing for Airflow Recirculation

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Solution Overview

Problem

Information handling systems face reduced cooling efficiency due to airflow bypass and recirculation through cable channels, which traditional mounting approaches fail to adequately address as heat generation increases.

Innovation Solution

A sleeve is integrated into the cable channel with cable passage openings and obstructions that create a seal when cables are not present, restricting airflow and minimizing recirculation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional mounting approaches are used for cable channels, then the structure remains simple and easy to manufacture, but airflow bypass and recirculation occur reducing cooling efficiency

Engineering Contradiction:

Improvecooling efficiencyVSAvoidcable channel structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The cable channel is segmented into multiple sections by inserting a cable management device with separate components (body, cap, and individual cable passages). Each cable passage can be independently sealed with caps, allowing the system to address airflow issues in specific areas without redesigning the entire cable channel structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A cable management device acts as an intermediary component between the cable channel and the airflow path. This device includes cable passages for guiding cables and caps that seal these passages when not in use, thereby controlling airflow through the cable channel without requiring direct modification of the channel itself.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If cable passages remain open for cable access, then ease of operation is improved, but airflow recirculation increases reducing cooling effectiveness

Engineering Contradiction:

Improvecable accessVSAvoidcooling effectiveness

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The cable passages transition from a static open state to a dynamic system where passages can be opened for cable access and then sealed with caps. This dynamic configuration allows the system to adapt between two states: open for ease of operation and closed for optimal cooling effectiveness.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Individual caps can be applied to specific cable passages based on local needs. Only the passages that do not require cable access remain sealed, while others remain open. This localized approach maintains cooling effectiveness in sealed areas while preserving ease of operation where needed.

Inventive Principle:

Principle #3Local quality

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 airflow recirculation, enhancing the cooling system's effectiveness by maintaining optimal temperature ranges for components in information handling systems.

Implementation Method 1

an obstruction configured to create a seal at the cable passage opening in the absence of the cable from the cable passage opening, such seal restricting airflow through the cable passage opening

Methodology Applied

Scientific EffectSealing:

Data Source

PatentUS11324138B2Systems and methods for minimizing airflow bypass and recirculation through a cable channel

Publication Date: 2022.05.03 DELL PROD LP

AI summary

An information handling system may include a chassis, a cable channel formed within the chassis, and a sleeve within the cable channel and configured to minimize airflow recirculation in the chassis via the cable channel, the sleeve comprising a cable passage opening for passage of a cable and an obstruction configured to create a seal at the cable passage opening in the absence of the cable from the cable passage opening, such seal restricting airflow through the cable passage opening.