Peripheral Fan Control for Heat Dissipation in Electronic Devices

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Solution Overview

Problem

Electronic elements without self-heat-dissipation functions pose a challenge in dissipating heat without incurring additional costs or space, as existing solutions require additional fans for effective cooling.

Innovation Solution

A method and electronic device configuration where a processor detects the temperature of elements without self-heat-dissipation functions and controls peripheral fans to dissipate heat when temperatures exceed a threshold, optimizing heat management without additional space or cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a fan is additionally installed next to the electronic elements with no self-heat-dissipation function, then heat dissipation is improved, but cost and device complexity increase

Engineering Contradiction:
Improveheat dissipationVSAvoiddevice complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent makes existing fans serve dual functions: cooling their own electronic elements and cooling adjacent electronic elements without self-heat-dissipation functions. The control unit directs airflow from each fan to cover both its native element and neighboring elements, eliminating the need for additional fans and reducing device complexity while maintaining effective heat dissipation.

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

2Temperature

If a fan is additionally installed next to the electronic elements with no self-heat-dissipation function, then heat dissipation is improved, but space requirements increase

Engineering Contradiction:
Improveheat dissipationVSAvoidspace requirements
Core Design Contradiction:
TemperatureVSArea of stationary object

Solution Approach 1:

The patent makes existing fans serve dual functions: cooling their own electronic elements and cooling adjacent electronic elements without self-heat-dissipation functions. The control unit directs airflow from each fan to cover both its native element and neighboring elements, eliminating the need for additional fans and reducing device complexity while maintaining effective heat dissipation.

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

3Temperature

If peripheral fans are controlled to dissipate heat from electronic elements, then heat dissipation efficiency is improved, but energy consumption increases

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidenergy consumption
Core Design Contradiction:
TemperatureVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic control of fan operations through a control unit that monitors temperature conditions and adjusts fan activation and airflow direction accordingly. Fans are operated only when and where heat dissipation is needed, and airflow is dynamically redirected to target specific hot spots, optimizing energy utilization and reducing overall power consumption compared to continuous full-speed operation of all fans.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control unit receives temperature information from electronic elements and uses this feedback to intelligently control fan operations. When an electronic element exceeds a threshold temperature, the control unit activates the appropriate fan and directs its airflow to the hot spot. This feedback mechanism ensures fans operate only when necessary, minimizing energy consumption while maintaining effective heat dissipation.

Inventive Principle:
Principle #23Feedback

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

Effectively dissipates heat from electronic elements without self-heat-dissipation functions by strategically controlling peripheral fans, ensuring efficient cooling without increasing costs or space requirements.

Implementation Method 1

controlling a fan of the peripheral element located around the electronic element to dissipate the heat from the electronic element

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Data Source

PatentUS10750635B2Method for controlling heat dissipation device and electronic device with function of controlling heat dissipation device
Publication Date: 2020.08.18 REALTEK SEMICON CORP
  • US10750635B2 patent drawing
  • US10750635B2 patent drawing

AI summary

A heat dissipation device control method for dissipating heat from an electronic element without self-heat-dissipation function in an electronic device. The method comprises: detecting a first temperature of the electronic element; and controlling the fan of the peripheral element located around the electronic element when the first temperature exceeds the first upper temperature threshold to dissipate the heat from the electronic element.