EMR-Absorbing Vent Layout for EMI-Shielded Thermal Management

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Solution Overview

Problem

High-density environments face challenges with thermal management, mechanical positioning, and electrical concerns due to tightly packed devices emitting electromagnetic interference (EMI), which existing technologies fail to effectively address.

Innovation Solution

A data processing device with an internal volume housing EMI emitting devices, featuring two electromagnetic radiation (EMR) absorbing vents that delineate a gas flow path for thermal management, allowing for monitoring and modulation of gas flow to manage the thermal state of EMI emitting devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If devices are tightly packed together in a high density environment, then device density and space utilization are improved, but thermal management and electromagnetic interference problems worsen

Engineering Contradiction:
Improvedevice densityVSAvoidelectromagnetic interference
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The device housing is segmented into multiple internal volumes, each containing specific EMI-emitting devices. This segmentation isolates electromagnetic interference within defined spaces, preventing it from affecting other devices while maintaining high device density in the overall system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

EMR-absorbing vents serve as intermediary elements between internal volumes and the external environment. These vents selectively allow thermal energy to pass through for cooling while absorbing and blocking electromagnetic radiation, thus mediating between thermal management requirements and EMI suppression needs.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If devices are tightly packed together in a high density environment, then device density and space utilization are improved, but thermal management problems worsen

Engineering Contradiction:
Improvedevice densityVSAvoidthermal management
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The housing is divided into multiple internal volumes with dedicated thermal management pathways for each. This segmentation allows customized cooling strategies for different device groups, improving overall thermal management efficiency while maintaining high device density.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The EMR-absorbing vents act as intermediaries that facilitate thermal energy transfer from internal volumes to the external environment. By allowing thermal radiation to pass through these vents, the system achieves effective cooling without compromising EMI suppression.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If EMI emitting devices are isolated from the ambient environment, then electromagnetic interference is reduced, but thermal dissipation becomes more difficult

Engineering Contradiction:
Improveelectromagnetic interference reductionVSAvoidthermal dissipation
Core Design Contradiction:
Object-affected harmful factorsVSTemperature

Solution Approach 1:

The vents are designed with localized EMR-absorbing properties specifically at their surfaces, while their internal structure and geometry are optimized to permit thermal radiation passage. This local quality differentiation allows the same component to simultaneously achieve EMI suppression and thermal management.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The EMR-absorbing vents utilize composite material structures that combine electromagnetic radiation absorption capabilities with thermal radiation transmission properties. This composite approach enables the vents to block EMI while allowing heat to escape from the isolated internal volumes.

Inventive Principle:
Principle #40Composite materials

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 isolates EMI emitting devices from the ambient environment, reducing electromagnetic interference by at least 90 decibels and facilitating thermal regulation, enabling their use in high-density settings without negatively impacting the environment.

Implementation Method 1

two electromagnetic radiation (EMR) absorbing vents that delineate a gas flow path through the internal volume

Methodology Applied
Scientific EffectElectromagnetic radiation absorption: Absorption (EM radiation)

Implementation Method 2

monitoring a thermal state of an electromagnetic interference (EMI) emitting device disposed in an EMI suppressed internal volume of the data processing device; and managing the thermal state of the EMI emitting device based on the monitoring by modulating a rate of gas flow that: traverses through the EMI suppressed internal volume

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS20240268089A1System and method for thermal management and electromagnetic interference management
Publication Date: 2024.08.08 DELL PROD LP
  • US20240268089A1 patent drawing
  • US20240268089A1 patent drawing
  • US20240268089A1 patent drawing

AI summary

A method for managing a data processing device, comprising monitoring a thermal state of an electromagnetic interference (EMI) emitting device disposed in an EMI suppressed internal volume of the data processing device, and managing the thermal state of the EMI emitting device based on the monitoring by modulating a rate of gas flow that traverses through the EMI suppressed internal volume, and is proximate to the EMI emitting device, wherein the EMI suppressed internal volume is delineated by two electromagnetic radiation (EMR) absorbing vents.