Rotatable Air Guide in Annular Air Purifiers for Wind Direction Control
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Solution Overview
Problem
Conventional air purifiers with annular air outlets lack the ability to control wind direction, leading to reduced usability and air circulation efficiency due to fixed air stream directions.
Innovation Solution
An air purifier design featuring a rotatable air guide within the housing, coupled with a rotation-restraining mechanism, allows for adjustable wind direction by inclining the air outlet port, and a direction switching unit with a switching driver and actuator to change the air discharge direction externally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If an annular air outlet is used for product design and rotating airflow discharge, then the air outlet structure is simplified and aesthetic design is improved, but the wind direction control capability is lost
Solution Approach 1:
The patent applies the dynamics principle by making the air guide rotatable rather than fixed. The air guide can be rotated to different angles (e.g., upward, downward, leftward, rightward) to change the air discharge direction dynamically, while maintaining the annular outlet shape for aesthetic purposes. This resolves the contradiction by enabling wind direction control without compromising the annular design.
2Ease of manufacture
If the air outlet structure is fixed for manufacturing simplicity, then manufacturing cost is reduced, but air circulation efficiency is lowered due to inability to adjust discharge direction
Solution Approach 1:
The air guide is designed with rotational capability allowing it to be adjusted to different positions (upward, downward, leftward, rightward) to optimize air circulation in different environments. This dynamic adjustment capability improves air circulation efficiency while the basic annular structure remains simple to manufacture.
Solution Approach 2:
The air guide is separated from the housing as an independent rotatable component rather than being integrated into the fixed structure. This segmentation allows the air guide to be manufactured separately with simple annular geometry while adding rotational functionality through a separate mechanism, thus maintaining manufacturing simplicity while improving air circulation efficiency.
3Productivity
If a rotatable air guide is added to enable wind direction adjustment, then air circulation efficiency is improved, but device complexity increases
Solution Approach 1:
The air guide is designed to rotate freely or with minimal resistance around a vertical axis, allowing simple angular adjustment without complex mechanisms. The rotation is constrained to a single degree of freedom (azimuthal angle), which keeps the mechanism simple while enabling directional control for improved air circulation.
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
Enables user-adjustable air stream direction, enhancing usability and air circulation efficiency by allowing customizable air discharge patterns.
Implementation Method 1
a rotation-restraining portion for restraining rotation of the air guide by elastically supporting the air guide on the housing
Data Source
AI summary
An air purifier capable of adjusting wind directions according to an embodiment of the present invention comprises: a housing having an air outlet port on one side thereof; an air guide having a front end portion disposed at the center of the air outlet port such that the air outlet port becomes a ring shape and a rear end portion extending in a direction toward the other surface of the housing and coupled to the inside of the housing so as to be rotatable in a direction inclined with respect to the air release direction of the air outlet port; and a rotation-restraining portion for restraining the rotation of the air guide by elastically supporting the air guide on the housing.