Expandable Window Filtration for Fast Air Purification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Air purifiers are ineffective in rapidly purifying indoor air and can lead to increased indoor carbon dioxide levels due to prolonged closed windows, preventing healthy air circulation.
Innovation Solution
An air filtration equipment installed in the ventilation area between indoor and outdoor spaces, equipped with sensors to detect inhalable particles and control expandable filtering layers to cover the ventilation area, ensuring purified air enters indoors and maintaining air circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If air purifiers are used to purify indoor air, then air quality is improved, but the purification process takes too long and indoor carbon dioxide levels increase
Solution Approach 1:
The patent applies preliminary action by installing the filtering layer in the ventilation area before air enters the indoor space. The filter proactively captures particles at the entry point (window/ventilation area) rather than waiting to purify air after it has already entered and polluted the indoor environment. This pre-interception approach dramatically reduces purification time while maintaining air circulation through windows.
2Object-affected harmful factors
If windows are closed for a long time to avoid polluted air, then air quality is improved, but air circulation is prevented and carbon dioxide concentration increases
Solution Approach 1:
The patent applies local quality by making the filtering layer expandable and contractable based on outdoor air quality conditions. When outdoor air is clean, the filtering layer contracts to allow maximum air circulation through the window. When pollution is detected, the filtering layer expands locally at the ventilation area to filter particles while still permitting air flow. This localized adaptive filtering enables windows to remain open for circulation while blocking harmful particles.
Solution Approach 2:
The patent applies dynamics by using a controllable filtering layer that can dynamically change its state between expanded and contracted positions based on real-time sensor feedback about outdoor air quality. The system transitions from a static closed-window approach to a dynamic system that actively adjusts the filtering layer position to balance particle filtration with air circulation needs, preventing carbon dioxide buildup while maintaining air quality.
3Object-affected harmful factors
If traditional air purifiers are used, then air purification is achieved, but the device complexity and space requirements increase
Solution Approach 1:
The patent applies merging by combining the air filtration function with the existing window structure. Instead of using a separate air purifier device that occupies indoor space and requires additional power sources, the filtering layer is integrated directly into the window or ventilation area structure. This unified design eliminates the need for standalone purification equipment while achieving effective particle filtration at the air entry point.
Solution Approach 2:
The patent applies the intermediary principle by using a controllable filtering layer as a mediator between outdoor air and indoor space. This intermediate filtering structure is positioned at the window/ventilation area to intercept and filter particles before they enter the indoor environment, rather than using complex indoor air purifier systems. The filtering layer acts as a simple yet effective barrier that simplifies the overall air purification 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 equipment effectively filters out inhalable particles and maintains indoor air quality by controlling the expansion of filtering layers based on outdoor air quality, addressing the limitations of traditional air purifiers and ensuring healthy air circulation.
Implementation Method 1
a sensor configured to sense information on inhalable particles in outside air
Implementation Method 2
at least one filtering layer configured to filter out inhalable particles in air entering from the ventilation area into the indoor space
Data Source
AI summary
An air filtration equipment, the air filtration equipment is installed in an ventilation area at an interface between indoor and outdoor spaces of a fixed space, the equipment including: a sensor configured to sense information on inhalable particles in outside air; at least one filtering layer configured to filter out inhalable particles in air entering from the ventilation area into the indoor space; and a control device connected with the sensor and the at least one filtering layer and configured to control the at least one filtering layer to expand according to the information sensed by the sensor, such that the expanded at least one filtering layer covers the ventilation area. Also, a screen window and a window are provided.