Heat Dissipation Control Using Total Power Consumption Feedback

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Solution Overview

Problem

Current heat dissipation control methods in electronic devices, such as server systems, do not optimize system power consumption as they primarily focus on maintaining target temperatures by adjusting fan speeds without considering the total power consumption of both heat generating and dissipating components.

Innovation Solution

A method and apparatus that determine the total power consumption of heat generating and dissipating components to set heat dissipation parameters, controlling the operating state of heat dissipating components, including fan rotational speed and the use of heat conducting media, to optimize system power consumption by adjusting operational states based on threshold ranges and specific parameters like temperature.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the fan speed is increased to maintain target temperature, then the heat dissipation effectiveness is improved, but the system power consumption increases

Engineering Contradiction:

Improveheat dissipation effectivenessVSAvoidsystem power consumption

Core Design Contradiction:

TemperatureVSUse of energy by moving object

Solution Approach 1:

The patent changes the control parameter from temperature-only to total power consumption (heat generating component + heat dissipating component). By monitoring total power consumption and comparing it against threshold ranges, the system dynamically adjusts heat dissipation parameters to achieve optimal power efficiency while maintaining adequate temperature control.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system implements feedback control by continuously monitoring the total power consumption of both heat generating and dissipating components, comparing it to threshold ranges, and automatically adjusting heat dissipation parameters. This closed-loop feedback mechanism enables the system to optimize power consumption dynamically based on actual operating conditions.

Inventive Principle:

Principle #23Feedback

2Temperature

If the heat dissipating component operates at high power to cool the heat generating component, then the temperature control is improved, but the overall system efficiency deteriorates

Engineering Contradiction:

Improvetemperature controlVSAvoidsystem efficiency

Core Design Contradiction:

TemperatureVSLoss of energy

Solution Approach 1:

The patent transforms the control objective from temperature-centric to power consumption-centric by establishing threshold ranges for total power consumption. This parameter change allows the system to balance temperature control requirements with overall energy efficiency, preventing excessive power consumption by heat dissipating components.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent converts the harmful effect of excessive power consumption by heat dissipating components into a beneficial control mechanism. By monitoring total power consumption and using it as the primary control parameter, the system identifies and eliminates wasteful energy consumption while maintaining necessary temperature control, effectively turning the problem of high dissipating component power into a solution for optimizing overall system efficiency.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 approach optimizes system power consumption by comprehensively managing the power usage of both heat generating and dissipating components, achieving the lowest system power consumption by adjusting operational states and parameters, such as fan speed and heat conducting medium operation, to effectively manage heat dissipation.

Implementation Method 1

the heat dissipating component includes a heat conducting medium for cooling; and controlling an operating state of the heat dissipating component based on the heat dissipation parameter includes adjusting an operation parameter of the heat dissipating component based on the heat dissipation parameter, enabling an internal energy change caused by compressing the heat conductive medium to satisfy a cooling requirement

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

enabling an internal energy change caused by compressing the heat conductive medium to satisfy a cooling requirement

Methodology Applied

Scientific EffectAdiabatic compression: Adiabatic Heating

Data Source

PatentUS11240939B2Heat dissipation control method, apparatus, and device

Publication Date: 2022.02.01 LENOVO (BEIJING) LTD

AI summary

A heat dissipation control method includes determining a total power consumption of a heat generating component and a heat dissipating component, determining a heat dissipation parameter based on the total power consumption of the heat generating component and the heat dissipating component, and controlling an operating state of the heat dissipating component based on the heat dissipation parameter.