Rotatable Impeller Air Supply for Wide-Angle AC Airflow
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Solution Overview
Problem
Conventional air conditioner indoor units have limited air direction and supply distance due to the use of thin and long cross flow impellers and fixed air channels, resulting in inefficient air distribution and increased windage, which affects room comfort and temperature uniformity.
Innovation Solution
An air supply apparatus with an annular outer frame and a pivotally connected impeller assembly, featuring a central part with air guide blades that rotate to change air direction and concentration, eliminating the need for guide blades to alter airflow, thus reducing windage and condensation phenomena.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If air guide blades are used to change air direction, then air direction control is improved, but windage increases and condensation occurs
Solution Approach 1:
The patent employs a rotatable impeller assembly that can dynamically change its orientation angle relative to the air outlet. This dynamic adjustment allows the air supply direction to be changed without using fixed air guide blades, thereby avoiding the windage and condensation problems caused by traditional blade-based direction control.
Solution Approach 2:
The invention replaces the mechanical air guide blade system with a rotatable impeller assembly system. Instead of using blades to deflect air flow, the entire impeller assembly rotates to change the air supply direction, substituting a simpler mechanical rotation mechanism for the complex blade adjustment system.
2Device complexity
If cross flow impeller and fixed air channel are used, then structure is simplified, but air supply distance and direction are limited
Solution Approach 1:
The patent transforms the fixed air channel configuration into a dynamic system by making the impeller assembly rotatable. This allows the air supply apparatus to adapt to different air supply directions and distances by adjusting the impeller's rotation angle, significantly improving versatility while keeping the overall structure relatively simple.
Solution Approach 2:
The rotatable impeller assembly serves multiple functions: it acts as both the air-moving component and the direction-control mechanism. By rotating the same impeller assembly to different angles, the system can supply air in multiple directions and distances, achieving multi-functionality without adding separate air guide components.
3Ease of operation
If air guide blades are used to change air direction, then air direction control is improved, but device complexity increases
Solution Approach 1:
The patent merges the air-moving function and the direction-control function into a single integrated system. The impeller assembly itself, when rotated to different angles, performs both air propulsion and direction control, eliminating the need for separate air guide blades and reducing overall device complexity.
Solution Approach 2:
The impeller assembly is designed to perform multiple functions: it moves air forward and simultaneously controls the air supply direction through rotation. This multi-functional design reduces the number of components needed, thereby simplifying the device structure while maintaining effective air direction control.
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 changes air direction and achieves wide-angle, concentrated air supply without increasing windage or causing condensation, ensuring smooth airflow and improved room comfort.
Implementation Method 1
an impeller assembly provided in the accommodating space and pivotally connected to the outer frame, in which the impeller assembly has an air suction side and an air outlet side
Data Source
AI summary
An air supply apparatus used for an air conditioner, includes: an annular outer frame (21), having an outer surface formed as a partial spherical surface and having an accommodating space (24) therein; and the impeller assembly (22) provided in the accommodating space (24) and pivotally connected to the outer frame (21), in which the impeller assembly (22) has an air suction side and an air outlet side. Also disclosed is an air conditioner having the air supply apparatus.