Volute fan assembly structure and floor-standing air conditioner
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Solution Overview
Problem
Large air conditioning devices, such as vertical air conditioners, face challenges with insufficient air volume due to the limitations of volute fans, which require increased power and size, leading to space constraints and installation difficulties.
Innovation Solution
A volute fan combination structure where one volute fan has an inclined air outlet between adjacent fans, reducing disturbance and allowing for a staggered arrangement that maintains air blowing volume without increasing the overall size, using a mounting plate with specific fan mounting portions to minimize thickness and width expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the power of a volute fan is raised to increase air volume, then the air blowing volume is improved, but the volume of the volute fan increases, requiring enlargement of the overall air conditioner size
Solution Approach 1:
The patent divides a single large volute fan into multiple smaller volute fans (first volute fan, second volute fan, third volute fan) arranged in sequence. This segmentation allows the system to achieve the required total air blowing volume without increasing the size of individual fans, thereby maintaining a compact overall air conditioner structure while improving productivity through multiple fans working together
Solution Approach 2:
The patent arranges multiple volute fans in a longitudinal sequence along the air flow direction rather than stacking them in width or height. This dimensional arrangement allows the air conditioner to maintain its width and height dimensions while extending the air blowing capacity through the longitudinal dimension, effectively increasing air volume without enlarging the overall device footprint
2Productivity
If multiple volute fans are arranged sequentially to increase air volume, then the air blowing volume is improved, but the volute of adjacent fans disturbs the air blowing of intermediate fans
Solution Approach 1:
The patent positions the second volute fan forward of the first and third fans in the longitudinal direction, creating a staggered three-dimensional arrangement. This spatial configuration allows the air outlets of the second fan to be inclined forward, directing air flow away from the volutes of adjacent fans and reducing aerodynamic interference, thus minimizing energy loss while maintaining high air blowing volume
Solution Approach 2:
The patent employs asymmetric air outlet orientations for the second volute fan, with the air outlets inclined forward relative to the fan's rotational plane. This asymmetric design creates a non-uniform air flow pattern that strategically directs air away from interfering with adjacent fans, reducing turbulence and energy loss while preserving the overall air blowing capacity of the multi-fan 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 solution enhances air blowing volume while minimizing the increase in size, allowing for smoother air flow and reduced energy loss, facilitating easier installation and use of vertical air conditioners without significant changes to the existing volute fans.
Implementation Method 1
one volute fan has an inclined air outlet between adjacent fans, reducing disturbance and allowing for a staggered arrangement that maintains air blowing volume
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
A volute fan combination structure, comprises a mounting plate (4) and at least two adjacent volute fans mounted on the mounting plate (4), one volute fan of the two adjacent volute fans havs an intermediate inclined air outlet that located between the two adjacent volute fans, the intermediate inclined air outlet extending such as to be inclined towards a direction away from said mounting plate (4). The volute fan combination structure is capable of allowing that the air outlet of a second volute fan (2) is staggered from a first volute fan (1) and a third volute fan (3), so as to reduce disturbance. There is further provided with a vertical air conditioner having the aforementioned volute fan combination structure.