Fan Cooling System with Electrostatic Dust Filtration
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Solution Overview
Problem
Miniaturized electronic apparatuses face heat dissipation inefficiencies and shortened lifespan due to dust accumulation caused by cooling fans, which allow ambient dust to enter and hinder heat dissipation, potentially leading to short circuits.
Innovation Solution
A fan cooling system incorporating an electrostatic filtering unit and controlling unit that applies static electricity to adsorb draft-borne dust, utilizing a programmable logic module for user-controlled dust removal, ensuring clean air circulation within the electronic apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling fan is installed to cool the electronic apparatus, then heat dissipation is improved, but dust accumulates inside the electronic apparatus
Solution Approach 1:
The patent introduces an electrostatic filtering unit as an intermediary component between the cooling fan and the electronic apparatus interior. This filtering unit captures dust particles from the cooling draft through electrostatic attraction, allowing the fan to continue providing effective cooling while preventing dust from entering and accumulating inside the electronic apparatus.
Solution Approach 2:
The patent extracts the dust removal function from the cooling system by adding a separate electrostatic filtering unit. This unit specifically targets and removes dust particles from the cooling draft without interfering with the primary cooling function, thereby resolving the contradiction between heat dissipation and dust prevention.
2Weight of moving object
If the electronic apparatus is miniaturized to be lighter and thinner, then portability is improved, but heat dissipation efficiency deteriorates
Solution Approach 1:
The patent applies local quality by positioning the electrostatic filtering unit specifically at the air intake area where dust enters the system. This localized approach ensures effective dust removal without adding significant weight or volume to the entire apparatus, thus maintaining portability while improving heat dissipation efficiency by preventing dust accumulation.
3Temperature
If ambient air is introduced for cooling, then heat dissipation is improved, but dust enters the electronic apparatus
Solution Approach 1:
The electrostatic filtering unit serves as an intermediary that allows ambient air to pass through for cooling purposes while simultaneously capturing dust particles. The filtering unit maintains the cooling effect by permitting air flow while blocking harmful dust particles from entering the electronic apparatus interior.
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 prevents dust from entering the electronic apparatus, enhancing heat dissipation and extending the lifespan of electronic components by electrostatically filtering out draft-borne dust, thereby overcoming the limitations of conventional fan cooling systems.
Implementation Method 1
the electrostatic controlling unit applies static electricity to the electrostatic filtering unit in accordance with the logic result sent from the programmable logic module and thus enables the electrostatic filtering unit to electrostatically adsorb draft-borne dust
Data Source
AI summary
A fan cooling system for use with an electronic apparatus having a fan for providing a cooling draft and adapted to remove draft-borne dust includes: an input module for receiving a control instruction; a programmable logic module electrically connected to the input module and adapted to validate the control instruction received by the input module and output a logic result in accordance with the control instruction; and an electrostatic module comprising an electrostatic filtering unit and an electrostatic controlling unit electrically connected to the electrostatic filtering unit and the programmable logic module, wherein the electrostatic filtering unit adjoins the fan to take the cooling draft, and the electrostatic controlling unit applies static electricity to the electrostatic filtering unit in accordance with the logic result sent from the programmable logic module and thus enables the electrostatic filtering unit to electrostatically adsorb draft-borne dust.