Ion Drag Blower-Fan Cooling for Low-Noise Mobile Systems

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Solution Overview

Problem

Information handling systems generate heat during high-performance operations, which can affect performance if not mitigated, and traditional cooling fans create noise and increase power consumption.

Innovation Solution

An ion emitter/collector blower cooling system is integrated with a fan to enhance convection airflow, using ionization to create a low-noise, high-airflow cooling mechanism that supplements or replaces fan operation based on temperature and power consumption levels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a traditional cooling fan is used to dissipate heat, then heat dissipation effectiveness is improved, but noise level increases and power consumption increases

Engineering Contradiction:
Improveheat dissipation effectivenessVSAvoidnoise level
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the traditional mechanical fan system with an ion-based airflow generation system. Ion emitters create ionized air molecules that are attracted to ion collectors, generating airflow without mechanical moving parts. This substitution eliminates fan noise while maintaining heat dissipation effectiveness through the same convection mechanism.

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

Solution Approach 2:

The patent changes the physical state of air molecules by ionizing them. By applying high voltage to emitters, air molecules become ionized and can be controlled through electrostatic attraction to collectors. This parameter change (from neutral to ionized state) enables airflow generation without mechanical fans, reducing noise while preserving cooling performance.

Inventive Principle:
Principle #35Parameter changes

2Temperature

If a traditional cooling fan is used to dissipate heat, then heat dissipation effectiveness is improved, but power consumption increases

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

Solution Approach 1:

The patent replaces the mechanical fan system with an ion-based airflow generation system. Ion emitters create ionized air molecules that are attracted to ion collectors, generating airflow without mechanical moving parts. This substitution eliminates fan noise while maintaining heat dissipation effectiveness through the same convection mechanism.

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

Solution Approach 2:

The patent changes the physical state of air molecules by ionizing them. By applying high voltage to emitters, air molecules become ionized and can be controlled through electrostatic attraction to collectors. This parameter change (from neutral to ionized state) enables airflow generation without mechanical fans, reducing noise while preserving cooling performance.

Inventive Principle:
Principle #35Parameter changes

3Temperature

If fan speed is increased to improve cooling, then heat dissipation effectiveness is improved, but noise level increases

Engineering Contradiction:
Improveheat dissipation effectivenessVSAvoidnoise level
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical fan system with an ion-based airflow generation system. Ion emitters create ionized air molecules that are attracted to ion collectors, generating airflow without mechanical moving parts. This substitution eliminates fan noise while maintaining heat dissipation effectiveness through the same convection mechanism.

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

The system effectively dissipates heat with reduced noise and lower power consumption, maintaining system performance while minimizing acoustic interference.

Implementation Method 1

The ion emitter/collector blower cooling system includes an ion emitter/collector blower including an ion emitter and an ion collector, the ion emitter/collector blower being placed at a location within a chassis of the information handling system vertically higher than the cooling fan and between the fan and an exhaust vent formed in a top edge of the housing of the information handling system. The ion emitter/collector blower cooling system is operatively coupled to an ionic driving circuit operatively coupled to the ion emitter via a high voltage to ionize gases at the ion emitter/collector blower to create charged ions that generate an airflow along a voltage field to and through the ion collector.

Methodology Applied
Scientific EffectIonization: Ionisation

Implementation Method 2

The ion emitter/collector blower cooling system is operatively coupled to an ionic driving circuit operatively coupled to the ion emitter via a high voltage to ionize gases at the ion emitter/collector blower to create charged ions that generate an airflow along a voltage field to and through the ion collector.

Methodology Applied
Scientific EffectElectrostatic attraction: Electrostatics

Implementation Method 3

An ion emitter/collector blower cooling system is integrated with a fan to enhance convection airflow, using ionization to create a low-noise, high-airflow cooling mechanism that supplements or replaces fan operation based on temperature and power consumption levels.

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS12457703B2Method and apparatus for a mobile information handling system with an ion drag blower integrated with a fan for enhanced convection airflow
Publication Date: 2025.10.28 DELL PROD LP
  • US12457703B2 patent drawing
  • US12457703B2 patent drawing
  • US12457703B2 patent drawing

AI summary

An information handling system includes a powered hardware processor and a memory device. The information handling system includes an ion emitter/collector blower cooling system including an ion emitter/collector blower having an ion emitter and an ion collector, the ion emitter/collector blower being operatively coupled to a fan and located between the fan and an exhaust vent formed in a top edge of the chassis of the information handling system. An ionic driving circuit is operatively coupled to the ion emitter via a high voltage to ionize gases at the ion emitter/collector blower to create charged ions that generate an airflow to and through the ion collector. The information handling system also includes an air intake vent located at the fan in the chassis so that the airflow is brought into the chassis via the fan, through the fan and ion emitter/collector blower, and out of the air exhaust vent.