Adjustable Air Outlet Door for Low-Noise Radial Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional air conditioners often result in unpleasant temperature sensations for users due to high wind velocity and noise, and require large panels for radiation-based cooling, which slows down cooling speed and increases installation costs.
Innovation Solution
An air conditioner with a door unit that controls air discharge direction and velocity by moving a door blade to discharge air either straight or radially, using a heat exchanger and blower fan to manage air flow and temperature distribution, allowing for pleasant wind velocities and efficient cooling without direct exposure to discharged air.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the blower fan rpm is increased to maximize air velocity and air volume, then cooling efficiency is improved, but noise increases and user comfort deteriorates due to direct exposure to high velocity air
Solution Approach 1:
The patent divides the air discharge function into two separate discharge paths: a first discharger for high-velocity air and a second discharger for low-velocity air. This segmentation allows the system to maintain high cooling efficiency through the first discharger while providing comfortable ambient cooling through the second discharger, resolving the contradiction between cooling efficiency and user comfort.
Solution Approach 2:
The patent applies different discharge characteristics to different regions: the first discharger provides high-velocity directed air flow for rapid cooling in specific areas, while the second discharger provides low-velocity diffuse air flow for comfortable ambient cooling. This local quality differentiation resolves the contradiction by optimizing each discharge path for its specific function.
2Object-affected harmful factors
If radiation-based cooling is used instead of blower fan, then noise is reduced, but panel size must be increased which slows cooling speed and increases installation costs
Solution Approach 1:
The patent merges two cooling methods into a single system: the blower fan-based convection cooling through the first discharger and the radiation-based cooling through the second discharger. This combination allows the system to achieve rapid cooling through convection while maintaining low noise levels through the radiation component, resolving the contradiction between noise reduction and cooling speed.
3Manufacturing precision
If the door blade is positioned close to the opening, then air discharge control is precise, but the ability to create radial discharge pattern is limited
Solution Approach 1:
The patent makes the door blade dynamically adjustable with multiple position settings: a first position for straight-line discharge and a second position for radial discharge. This dynamic positioning capability allows the system to switch between precise directional control and versatile discharge patterns, resolving the contradiction between precision and flexibility.
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 air conditioner effectively cools or heats a room at minimal wind velocity, enhancing user comfort and reducing noise, while maintaining efficient cooling speeds and installation costs through adjustable air discharge methods.
Implementation Method 1
a heat exchanger configured to exchange heat with air flowing into the housing
Implementation Method 2
a door blade configured to open or close the opening, a door operating part configured to move the door blade forward or backward
Data Source
AI summary
An air conditioner of present invention comprises a housing having an outer panel forming the exterior and an opening formed on the outer panel, a heat exchanger configured to exchange heat with air flowing into the housing, and a door unit configured to open or close the opening by moving forward or backward from the opening through which the heat exchanged air is discharged. Wherein the door unit comprises a door blade configured to open or close the opening, a door operating part configured to move the door blade forward or backward, and a controller configured to control the air discharged from the opening to be moved forward from the opening in a straight line or to be discharged radially from the opening by controlling a distance between the door blade and the opening.