Airflow Guide Blades for Horizontal Air Conditioner Discharge
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Air conditioners face challenges in directing airflow blown through the blowing port to minimize frictional flow losses and allow for adjustable direction and velocity, which affects temperature distribution and user comfort.
Innovation Solution
The air conditioner employs a pair of blades with different inclination angles and a cross-sectional airfoil shape to guide airflow horizontally, with a main blade and sub-blades that are detachably coupled, allowing for efficient airflow direction and minimizing frictional losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If airflow is directed horizontally through the blowing port, then user comfort is improved and cold air does not reach user directly, but the blowing distance needs to be increased to reach desired temperature quickly
Solution Approach 1:
The airflow guide unit is divided into multiple blades (first blade, second blade, third blade) with different inclination angles. Each blade segment handles a portion of the airflow, collectively directing it horizontally while maintaining sufficient blowing distance to achieve desired temperature quickly without direct cold air contact with users.
Solution Approach 2:
Different blades have different inclination angles tailored to their specific positions and functions. The first blade has a first inclination angle, the second blade has a second inclination angle, and the third blade has a third inclination angle, allowing each local region to optimize airflow direction for both comfort and effectiveness.
2Ease of operation
If multiple blades with different inclination angles are used to guide airflow horizontally, then airflow direction control is improved, but device complexity increases
Solution Approach 1:
The airflow guide unit is configured to rotate about a rotation axis, allowing dynamic adjustment of airflow direction. The multiple blades with different inclination angles work together in this rotating system, providing versatile airflow control while maintaining a relatively compact structure that manages complexity.
3Loss of energy
If blades are configured to guide airflow horizontally, then frictional flow losses are minimized, but manufacturing precision requirements increase for optimal blade angles
Solution Approach 1:
The patent specifies different inclination angle parameters for different blades (first inclination angle, second inclination angle, third inclination angle) to optimize airflow guidance. These parameter variations minimize frictional flow losses while providing clear manufacturing specifications that balance precision requirements with practical manufacturability.
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 enables airflow to be directed closer to horizontal, reducing discomfort from direct cold air and increasing the blowing distance for quicker temperature reach, while minimizing noise and airflow loss.
Implementation Method 1
a cross-sectional airfoil shape to guide airflow horizontally
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure relates to an air conditioner capable of inducing airflow blown through a blowing port to be close to a 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.