Air Cleaner Multi-Fan Segmentation to Reduce Noise and Expand Coverage
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Solution Overview
Problem
Conventional air cleaners have limited capacity and reliability due to structural design, resulting in incomplete air purification in indoor spaces, with increased noise and user inconvenience when trying to improve suction capacity, and limited air distribution beyond the device's immediate area.
Innovation Solution
The air cleaner incorporates dual blowing devices with cylindrical cases and 360-degree suction ports, along with a flow adjusting device, to enhance suction capacity and air distribution by allowing air to be drawn from multiple directions and discharged in various directions, reducing structural resistance and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the blowing amount of the fan is increased to improve air purification performance, then the purification capacity is improved, but noise generated by the fan increases
Solution Approach 1:
The patent divides the single fan system into multiple fans (first blowing fan and second blowing fan). Each fan handles a portion of the air purification task, allowing the system to achieve high purification capacity without requiring any single fan to operate at excessively high speeds that would generate significant noise.
2Productivity
If a single blowing fan is used to simplify the device structure, then the device complexity is reduced, but the blowing capacity and air distribution coverage are limited
Solution Approach 1:
The air purification function is segmented into multiple independent fan units, each capable of operating autonomously. This segmentation increases the overall blowing capacity and air distribution coverage while maintaining manageable device complexity through modular design.
Solution Approach 2:
The patent introduces spatial distribution of multiple fans at different locations (front and rear of the device) and operating directions. This dimensional arrangement expands the air purification coverage area without requiring a single oversized fan, effectively increasing blowing capacity through spatial optimization.
3Productivity
If air suction ports are limited to side and lower portions to simplify the case structure, then the manufacturing is easier, but the suction capacity is reduced
Solution Approach 1:
The air suction function is divided into multiple suction ports distributed across different surfaces of the case (front, rear, side, and lower portions). This segmentation allows air to be drawn from multiple directions simultaneously, significantly increasing the overall suction capacity while maintaining a relatively simple case structure.
4Adaptability or versatility
If air is discharged in only one upward direction to simplify the discharge structure, then the device structure is simpler, but the air distribution coverage in the indoor space is limited
Solution Approach 1:
The patent employs multiple air discharge ports positioned at different locations and orientations (front, rear, and side portions of the upper surface). This spatial arrangement enables purified air to be distributed in multiple directions, expanding the coverage area throughout the indoor space while keeping each individual discharge structure relatively simple.
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
This design improves air suction and distribution capabilities, ensuring more comprehensive indoor air purification and reduced noise, allowing for effective air cleaning across larger areas without user intervention.
Implementation Method 1
a blower that introduces outside air into the air cleaner
Implementation Method 2
a filter capable of filtering dust and bacteria
Data Source
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AI summary
An air cleaner is provided that may include a case including a first suction inlet, the case having a cylindrical or cone shape; a fan housing provided inside of the case, the fan housing accommodating a fan therein; a filter provided at a suction side of the fan, the filter filtering foreign materials in air which is suctioned through the first suction inlet; and a housing suction flow path formed between an outer surface of the fan housing and an inner surface of the case, the housing suction flow path allowing air which is suctioned through the first suction inlet to flow toward and through the filter. The housing suction flow path may include a first flow path inlet having a predetermined first width, and a second flow path inlet through which air having passed through the first flow path inlet flows, the second flow path inlet having a second width greater than the first width.