Air purifier and blower device thereof
Solution Overview
Problem
Existing air purifier blower devices, typically using single or dual axial or radial fans, face inefficiencies in air blowing and noise generation, which affect the overall performance of air purification systems.
Innovation Solution
A blower device comprising two fans with the same blowing direction, arranged coaxially and driven synchronously by a dual-shaft motor, where the first fan has higher blowing pressure and the second fan has a higher air rate, improving suction and blowing efficiency while reducing noise through optimized fan design and motor configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single fan or dual axial/radial fans are used in conventional air purifiers, then the device complexity is reduced, but the blowing efficiency and air handling performance deteriorate
Solution Approach 1:
The patent combines two fans with different functions (high-pressure fan and high-volume fan) into a single integrated blower device that processes air sequentially. This merging approach achieves superior blowing efficiency and air handling performance compared to conventional single or dual fan configurations, while maintaining reasonable device complexity through unified structural design
2Object-affected harmful factors
If conventional fan configurations are used, then the structure remains simple, but noise generation increases and air purification performance deteriorates
Solution Approach 1:
The patent segments the air handling process into two distinct stages performed by two different fans: the first fan handles high-pressure air movement and the second fan handles high-volume air flow. This segmentation allows each fan to be optimized for its specific function, reducing overall noise while improving air purification performance through specialized design
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 configuration significantly enhances air blowing efficiency, improves air purification, and reduces noise by ensuring smooth airflow and efficient air handling, while maintaining a compact structure and ease of assembly.
Implementation Method 1
driven synchronously by a motor
Implementation Method 2
both fans are of the axial type, but can also be of the radial type
Implementation Method 3
the first fan has higher blowing pressure and the second fan has a higher air rate
Data Source
Figure 1
Figure 2~4
AI summary
The disclosure relates to an air purifier and a blower device thereof. The blower device comprises a first fan (1) and a second fan (2) which have a same blowing direction and are arranged sequentially in the air blowing direction at an interval. The first fan (1) and the second fan (2) are mounted coaxially and driven synchronously by a motor (3). By adopting the two fans provided at the interval and driven synchronously by one motor, the blowing effectiveness of the air purifier can be improved significantly, and a simple structure and good availability can be obtained.