Multi-Blade Airflow Guide for Horizontal Air Conditioner Blowing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Air conditioners face challenges in minimizing frictional flow losses and controlling the direction and velocity of airflow blown through the blowing port, which affects temperature distribution and user comfort.
Innovation Solution
An air conditioner with a rotatable airflow guide unit featuring a main blade and sub blades with different inclination angles, designed to guide airflow horizontally, reducing frictional losses and enhancing airflow distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If airflow is blown directly through the blowing port, then cooling effect is strong, but user comfort deteriorates due to direct cold air exposure
Solution Approach 1:
The airflow guide unit is divided into multiple blades (main blade and sub blades) with different inclination angles. Each blade segment directs a portion of the airflow at different angles, segmenting the single strong airflow into multiple distributed streams that cover the room more evenly without direct exposure to users.
Solution Approach 2:
Different blades are designed with different inclination angles to create local variations in airflow direction. The main blade and sub blades have specifically optimized angles to distribute airflow horizontally across different zones, ensuring that some areas receive cooling while user positions are protected from direct cold air.
2Speed
If airflow direction is changed using conventional guide structures, then horizontal blowing is achieved, but frictional flow losses increase
Solution Approach 1:
The blades are designed with curved surfaces that smoothly guide airflow from the vertical blowing direction to horizontal direction. The curved geometry of the main blade and sub blades reduces flow separation and turbulence, minimizing frictional losses while achieving effective direction control.
Solution Approach 2:
The airflow guide unit is designed to be rotatable about a rotation shaft, allowing dynamic adjustment of the blade angles. This enables optimization of airflow direction based on different operating conditions while maintaining smooth flow guidance through the curved blade surfaces, reducing frictional losses across various configurations.
3Ease of operation
If multiple blades with different inclination angles are used, then airflow distribution is improved, but device complexity increases
Solution Approach 1:
Multiple blades with different functions are merged into a single rotatable airflow guide unit. The main blade and sub blades are combined in one assembly that can rotate together, simplifying control while maintaining the benefits of multiple inclination angles for optimized airflow distribution.
Solution Approach 2:
The rotatable airflow guide unit serves multiple functions: it directs airflow horizontally, distributes air across different zones, and can be adjusted for different operating conditions. The same set of blades with different inclination angles performs both direction control and distribution optimization, reducing the need for separate components.
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 allows for efficient airflow direction control, minimizing discomfort from direct cold air and increasing the room's temperature reach, while reducing blowing noise and distance.
Implementation Method 1
a pair of sub blades spaced downwardly apart from the main blade and disposed in a flow passage of the blowing port such that outer surfaces thereof are in contact with airflow in the blowing port as a whole, and having different inclination angles
Data Source
AI summary
The present disclosure relates to an air conditioner capable of inducing airflow blown through a blowing port to blow in a substantially horizontal direction. The air conditioner includes a housing including a blowing port, and an airflow guide unit installed in the blowing port to be rotatable about a rotation shaft, wherein the airflow guide unit includes a main blade configured to cover the blowing port, and a pair of sub blades spaced downwardly apart from the main blade and disposed in a flow passage of the blowing port such that outer surfaces thereof are in contact with airflow in the blowing port as a whole, and having different inclination angles.