Air Purifier Hood Design for Diffuse and Focused Air Distribution
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Solution Overview
Problem
Conventional air purifiers primarily distribute purified air in a diffuse manner, lacking the ability to direct a focused air stream to specific areas, which can be undesirable in certain scenarios.
Innovation Solution
A portable air purifier with a hood that can be positioned in multiple configurations, allowing for both diffuse and focused air stream distribution by retracting or expanding to direct filtered air in a predetermined direction, including the use of telescopic segments and louvers for efficient airflow management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the air purifier uses a fixed outlet design for diffuse air distribution, then the device structure is simple and easy to manufacture, but the air distribution flexibility and adaptability are limited
Solution Approach 1:
The outlet is designed as a movable hood that can dynamically change its configuration between retracted and extended positions. This dynamic structure allows the air purifier to adapt between diffuse air distribution (hood retracted) and focused air stream (hood extended), resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The hood is divided into multiple telescopic segments that can move independently relative to each other. This segmentation allows the outlet to transform from a compact state to an extended focused state, enabling flexible air distribution patterns while maintaining a relatively simple base structure.
2Productivity
If the hood is extended to direct air in a focused stream, then targeted air purification is achieved, but the hood occupies more space and may interfere with air outlet operation
Solution Approach 1:
The hood segments are designed to nest within each other when retracted, similar to a telescopic structure. When not in use, the hood occupies minimal space within the housing. When extended, it provides the necessary focused air stream for targeted purification, thus resolving the contradiction between productivity and volume.
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
Enables operation in multiple modes, providing either diffuse or focused air distribution as needed, enhancing user control over air purification and improving indoor air quality by allowing targeted purification.
Implementation Method 1
A fan is provided inside the housing drawing air from the air inlet towards an air outlet
Implementation Method 2
a filter is provided inside the housing in an air path from the air inlet to the air outlet for filtering the air drawn from the air inlet
Data Source
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AI summary
The invention relates to an air purifier (1). The air purifier comprises a housing (2) and an air inlet. A fan is provided inside the housing drawing air from the air inlet towards an air outlet. Further, a filter is provided inside the housing in an air path from the air inlet to the air outlet for filtering the air drawn from the air inlet such that air at the air outlet is filtered air. The air purifier comprises a hood (3) at the air outlet. The hood is configured to be positioned in at least a first position and a second position, where in the first position the hood is in a retracted position configured to let the filtered air exit the outlet without interfering with the direction of air exiting via the air outlet, and where in the second position the hood is in an expanded position configured to direct at least a fraction or all of the filtered outlet air in a predetermined direction. Hereby the air purifier can be made to operate in at least two different modes of operation. Advantageously, in the first mode a diffuse are stream of filtered air is provided and in the second mode a focused air stream of filtered air is provided.