Hollow Heat Sink for Wall-Mounted Processor Cooling

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Solution Overview

Problem

High processing demand devices often require significant cooling components, making it difficult to integrate them into confined spaces like walls due to space constraints and inadequate passive cooling capabilities.

Innovation Solution

A heat dissipation apparatus with a hollow housing made of heat-conductive material, designed to be mounted within a surface cavity, where the processor is in thermal communication with the rear surface of the housing, inducing accelerated airflow for enhanced cooling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If larger cooling components (fans, heat sinks) are installed to cool high processing demand devices, then cooling capability is improved, but space required increases making wall integration difficult

Engineering Contradiction:
Improvecooling capabilityVSAvoidspace required
Core Design Contradiction:
TemperatureVSVolume of moving object

Solution Approach 1:

The system utilizes the device's own heat generation to drive the cooling process. The heat generated by the processor creates natural convection currents that draw cool air from the front of the device, pass it over the heat sink, and exhaust it from the rear, eliminating the need for external fans or power-consuming cooling mechanisms

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The housing depth is specifically designed to create an optimized airflow channel length that induces accelerated flow of air between the rear surface and the interior cavity surface. This parameter optimization enhances convective heat transfer efficiency, allowing effective cooling in a compact form factor suitable for wall integration

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If passive cooling components (fins, heat sinks) are used without active cooling, then device complexity is reduced, but space required increases significantly

Engineering Contradiction:
Improvecooling component complexityVSAvoidspace required
Core Design Contradiction:
Device complexityVSVolume of moving object

Solution Approach 1:

The system converts the processor's waste heat into a useful resource by using it to drive natural convection currents through the housing. This self-powered mechanism eliminates the need for large passive heat sinks while maintaining effective cooling, achieving both reduced complexity and compact dimensions

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The design employs natural convection (a pneumatic principle) where heated air rises and creates a continuous flow through the housing cavity. This fluid dynamic approach enables efficient heat removal without mechanical components, reducing both complexity and space requirements

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Volume of moving object

If high processing demand devices are integrated into walls, then space utilization is improved, but cooling capability becomes inadequate due to confined space

Engineering Contradiction:
Improvespace utilizationVSAvoidcooling capability
Core Design Contradiction:
Volume of moving objectVSTemperature

Solution Approach 1:

The housing depth is optimized to create an accelerated airflow path between the rear surface and the interior cavity surface. This parameter optimization ensures that even in the confined space of a wall cavity, sufficient air flow velocity is achieved to maintain effective convective heat transfer, preserving cooling capability while enabling compact integration

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 enhances cooling capabilities in confined spaces by utilizing accelerated airflow, reducing the need for large cooling components and allowing for more compact integration of high processing demand devices.

Implementation Method 1

the processor is disposed within the housing in thermal communication with the rear surface of the housing

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

the housing has a depth sufficient to dispose the rear surface of the housing, when mounted on the surface, at a distance from a rear interior surface of the interior cavity sufficient to induce accelerated flow of air between the rear surface of the housing and the rear interior surface of the interior cavity when the processor generates heat

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS20250142793A1Heat dissipation apparatus and method
Publication Date: 2025.05.01 PASSIVELOGIC INC
  • US20250142793A1 patent drawing
  • US20250142793A1 patent drawing
  • US20250142793A1 patent drawing

AI summary

Various embodiments described herein relate to a digital controller and related method including one or more of the following: a processor; a memory; and a hollow housing configured to be mounted to a surface such that at least a portion of the housing is disposed within an interior cavity of the surface, wherein a rear surface of the housing is made of a heat-conductive material, wherein: the processor is disposed within the housing in thermal communication with the rear surface of the housing, and the housing has a depth sufficient to dispose the rear surface of the housing, when mounted on the surface, at a distance from a rear interior surface of the interior cavity sufficient to induce accelerated flow of air between the rear surface of the housing and the rear interior surface of the interior cavity when the processor generates heat.