Fan-Mounted Electrostatic Filter with Dual-Stage Particle Capture
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Solution Overview
Problem
Existing air filter devices for fans do not effectively capture small particles and odors, and they lack a mechanism to securely attach to fan cages.
Innovation Solution
An electrostatic filter with a frame and screen, coupled with brackets and mounts, that securely attaches to a fan and includes a slidable air filter to capture small particles and odors, utilizing electrically charged materials to attract particles and a secondary filter for additional purification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple air filter is attached to a fan cage, then the filter can be easily installed, but it lacks secure attachment mechanism
Solution Approach 1:
Mounts are introduced as intermediary components that bridge the air filter assembly and the fan cage. These mounts provide a secure mechanical connection point, allowing the filter to be reliably attached to the fan cage while maintaining ease of installation and removal through a simple engagement mechanism.
2Object-affected harmful factors
If a dual-filter system is implemented, then filtration effectiveness is improved, but device complexity increases
Solution Approach 1:
The electrostatic filter and air filter are merged into a single integrated assembly where the air filter is positioned downstream of the electrostatic filter. This combining of two filtration stages into one unified device achieves comprehensive particle and odor removal without requiring separate systems, thereby improving filtration effectiveness while controlling device complexity.
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 solution provides effective filtration of small particles and odors, ensuring cleaner air output from fans, particularly beneficial for individuals with allergies, while maintaining secure attachment to various fan types.
Implementation Method 1
The screen is comprised of an electrically charged material to attract particles suspended in the air onto the screen thereby removing the particles from the air
Data Source
AI summary
A fan mounted air filter device for filtering air blown by a fan includes an electrostatic filter that has a frame and a screen surrounded by the frame. The frame has a rectangular shape to conform to the shape of a box fan. The screen is comprised of an electrically charged material to attract particles suspended in the air onto the screen thereby removing the particles from the air. A pair of brackets is each coupled to the frame and a pair of mounts is each attached to the frame. Each of the pair of mounts releasably engages the box fan for retaining the electrostatic filter on the box fan. An air filter is slidable into each of the pair of brackets to filter particles from the air being blown by the box fan which are too small to be captured by the electrostatic filter.