IoT Device Cooling Assembly with EMI Shield and Heat Sink

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Solution Overview

Problem

Information handling systems, particularly those used in IoT devices, face challenges in efficiently managing heat generation due to increased processing demands, leading to potential thermal interference and reduced performance.

Innovation Solution

A unified cooling solution is implemented using a cooling assembly that includes an EMI shield with gap pad structures and heat sinks, which are operatively coupled to conduct heat effectively, reducing signal interference and enhancing thermal management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If processing power in IoT devices is increased to meet higher computational demands, then performance and functionality are improved, but heat generation increases leading to thermal interference and potential system instability

Engineering Contradiction:
Improveprocessing powerVSAvoidheat generation
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The patent combines multiple functions into a single integrated EMI shield structure that simultaneously provides electromagnetic interference shielding and thermal management. The EMI shield is operatively coupled to both the motherboard and heat sinks, creating a unified component that addresses both EMI and heat dissipation issues rather than treating them as separate problems requiring separate solutions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The EMI shield structure serves multiple functions: it provides electromagnetic interference shielding between the first and second motherboard components, acts as a thermal conduction path through its connection to heat sinks, and provides structural support. This multi-functional design allows a single component to address multiple thermal and EMI challenges in the IoT device.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If traditional separate cooling solutions are used for different components, then individual component cooling can be optimized, but device complexity and space requirements increase

Engineering Contradiction:
Improvecooling effectivenessVSAvoidcooling assembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple cooling functions into a single integrated EMI shield structure that serves as a common thermal management solution for multiple components. Instead of implementing separate cooling assemblies for different motherboard components, the EMI shield provides unified thermal conduction and EMI shielding, reducing overall device complexity while maintaining effective cooling.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The EMI shield is designed as a universal component that simultaneously provides electromagnetic shielding and thermal management for multiple components on the motherboard. This multi-functional approach eliminates the need for separate cooling solutions, reducing the number of parts, simplifying assembly, and decreasing overall device complexity while maintaining reliable cooling effectiveness.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 manages heat in IoT devices, improving performance by reducing thermal interference and ensuring efficient heat dissipation, thereby maintaining system stability and efficiency.

Implementation Method 1

a cooling assembly that includes an EMI shield with gap pad structures and heat sinks, which are operatively coupled to conduct heat effectively

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 2

heat sinks, which are operatively coupled to conduct heat effectively, reducing signal interference and enhancing thermal management

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

heat sinks, which are operatively coupled to conduct heat effectively, reducing signal interference and enhancing thermal management

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentUS10548248B2System and method of unified cooling solution in an IOT device
Publication Date: 2020.01.28 DELL PROD LP
  • US10548248B2 patent drawing
  • US10548248B2 patent drawing
  • US10548248B2 patent drawing

AI summary

A cooling assembly for an IOT wireless gateway device that includes a motherboard structure operatively coupled to one side of a first motherboard component, which is operatively coupled on the other side to one side of a first gap pad for conducting heat, an EMI shield operatively coupled to the other side of the first gap pad and surrounding the sides of the first motherboard component, the EMI shield also operatively coupled to the motherboard structure, the outside of the EMI shield operatively coupled to one side of a second gap pad for conducting heat, and a first heat sink operatively coupled to the other side of the second gap pad for conducting heat.