Iterative Heat Dissipation Estimation for Heat Sink Fins

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Solution Overview

Problem

Current methods for designing non-fan type heat dissipation modules in electronic devices are time-consuming and resource-intensive, requiring repeated modifications of three-dimensional structures to estimate heat dissipation, which is inefficient.

Innovation Solution

A heat dissipation estimating method that involves providing input heat to a fin of a heat sink unit, calculating average temperature, determining output heat, and iteratively updating input heat until it equals output heat, allowing for the calculation of total heat dissipation value using a ratio value, thereby quickly estimating the dissipation ability and reducing the need for repeated modifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If simulation software is used to construct three-dimensional structures and simulate heat dissipation during design, then heat dissipation estimation can be obtained, but repeated modifications are required which consume a lot of time and human resources

Engineering Contradiction:
Improveheat dissipation estimation accuracyVSAvoiddesign time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent segments the heat dissipation estimation problem into discrete computational steps: obtaining fin parameters, calculating thermal resistance, determining heat dissipation quantity, and verifying convergence. This segmentation transforms the complex simulation process into a systematic algorithm that can be executed efficiently without requiring repeated full-scale three-dimensional simulations, thereby reducing design time while maintaining estimation accuracy.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent replaces the mechanical interaction with simulation software and repeated manual modifications with an automated computational algorithm. The method substitutes the traditional trial-and-error simulation approach with a direct calculation system that uses thermal resistance models and iterative verification, eliminating the need for repeated construction and modification of three-dimensional structures while preserving heat dissipation estimation precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If simulation software is used to construct three-dimensional structures and simulate heat dissipation during design, then heat dissipation estimation can be obtained, but repeated modifications are required which consume a lot of human resources

Engineering Contradiction:
Improveheat dissipation estimation accuracyVSAvoiddesign efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent implements a self-service computational system that automatically performs heat dissipation estimation without requiring manual intervention for repeated modifications. The algorithm autonomously obtains fin parameters, calculates thermal resistance, determines heat dissipation quantities, and verifies convergence through iterative computation. This self-service mechanism eliminates the need for human resources to repeatedly modify and re-simulate three-dimensional structures, significantly improving design efficiency while maintaining accurate heat dissipation estimation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual simulation workflow with an automated computational algorithm that performs all calculations programmatically. The system substitutes human-operated simulation software with a self-executing calculation process that uses thermal resistance models and iterative verification, eliminating the need for repeated manual construction and modification of three-dimensional structures while preserving heat dissipation estimation precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If repeated modifications of three-dimensional structures are performed to estimate total heat dissipation, then accurate heat dissipation values can be obtained, but the process becomes time-consuming and resource-intensive

Engineering Contradiction:
Improvetotal heat dissipation value accuracyVSAvoiddesign process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the heat dissipation estimation into distinct computational modules: obtaining fin parameters (length, thickness, spacing), calculating thermal resistance, determining heat dissipation quantity, and verifying convergence. This segmentation simplifies the design process by replacing complex repeated three-dimensional simulations with a structured algorithmic approach that maintains accuracy while reducing process complexity and resource requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent replaces the complex mechanical process of repeatedly constructing and modifying three-dimensional structures with a simplified computational algorithm. The system uses thermal resistance models and iterative verification to directly calculate heat dissipation values, eliminating the need for complex simulation workflows while preserving measurement precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

This method enables quick estimation of the heat dissipation ability of the heat sink unit, minimizing time and resource waste by eliminating the need for repetitive simulations in the design process.

Implementation Method 1

providing an input heat to a fin of a heat sink unit; obtaining an average temperature of the fin according to the input heat; obtaining an output heat according to the average temperature

Methodology Applied
Scientific EffectHeat dissipation: Convection

Implementation Method 2

providing an input heat to a fin of a heat sink unit; obtaining an average temperature of the fin according to the input heat

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS10088440B2Heat dissipation estimating method
Publication Date: 2018.10.02 INVENTEC PUDONG TECH CORPOARTION
  • US10088440B2 patent drawing
  • US10088440B2 patent drawing
  • US10088440B2 patent drawing

AI summary

A heat dissipation estimating method is disclosed. The heat dissipation estimating method includes following steps: providing an input heat to a fin of a heat sink unit; obtaining an average temperature of the fin according to the input heat; obtaining an output heat according to the average temperature; determining whether the input heat is the same as the output heat or not; while the input heat is different from the output heat, updating the input heat according to the output heat and repeating the above steps until the input heat is the same as the output heat; and while the input heat is the same as the output heat, obtaining a total heat dissipation value of the heat sink unit according to the input heat and a ratio value.