Air Outlet Guider Blade Structure for Low-Noise Purifier Flow
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Solution Overview
Problem
Conventional air purifiers produce significant noise and vortex flow when discharging filtered air, which is not ideal for indoor spaces.
Innovation Solution
An air purifier with an air outlet guider featuring a central hub, outlet guiding blades, and a peripheral rim forms an air guiding cavity, directing air flow to minimize vortex formation and noise by shaping the blades to achieve a streamlined discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional air purifiers discharge air directly through the air outlet, then the structure is simple, but vortex flow is formed and noise is produced
Solution Approach 1:
An air outlet guider is introduced as an intermediary component between the air filter assembly and the air outlet. This guider includes guide blades that redirect the air flow, preventing direct discharge that causes vortex formation. The intermediary structure modifies the air flow path to eliminate harmful vortex effects while maintaining overall system simplicity.
Solution Approach 2:
The air outlet guider is divided into multiple guide blades segmented around the central hub. Each blade independently guides air flow in a specific direction, collectively forming a streamlined discharge pattern. This segmentation allows precise control over air flow direction while keeping each individual blade simple in structure.
2Device complexity
If air is discharged directly without guidance, then the device complexity is low, but noise level is high
Solution Approach 1:
The air outlet guider serves as a mediating structure that reduces noise by guiding air flow smoothly. The guide blades prevent turbulent discharge and vortex formation, which are primary noise sources. This intermediary component adds minimal structural complexity while effectively reducing noise levels.
3Device complexity
If air flow is not guided, then the structure is simple, but air flow pattern is uncontrolled and forms vortex
Solution Approach 1:
The air outlet guider employs multiple segmented guide blades arranged radially around a central hub. Each blade is positioned at a specific angle to redirect air flow in a controlled manner. This segmentation enables precise control over the air flow pattern, creating a streamlined discharge that prevents vortex formation while maintaining structural simplicity.
Solution Approach 2:
The guide blades are designed with curved surfaces that follow the natural flow of air. The curved geometry of the blades and the circular arrangement around the central hub create smooth flow transitions, preventing turbulence and vortex formation. This spherical/circular geometry is highly effective at stabilizing air flow patterns.
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 effectively reduces noise and enhances air flow guidance, providing cleaner and more controlled air discharge, improving indoor air quality.
Implementation Method 1
the air coming out from the main housing will form vortex flow and produce a considerable amount of noise
Implementation Method 2
the air in the guiding cavity being diverted and guided by the outlet guiding blades to form a more streamlined flow
Data Source
AI summary
An air purifier includes a main housing, an air filter, a driving motor, a centrifugal fan, and an air outlet guider. The air outlet guider includes a central hub connected to the driving motor, a plurality of outlet guiding blades outwardly extended from the central hub, and a peripheral rim connected to the central hub at a distance from the central hub to form an air guiding cavity between the central hub and the peripheral rim. The outlet guiding blades extend in the air guiding cavity. When the driving motor is activated to draw air from the air inlet, the air is forced to sequentially pass through the filter assembly and the guiding cavity. The air in the air guiding cavity is diverted and guided by the outlet guiding blades to form a more streamlined flow which is to be discharged through the air outlet.