Movable Discharge Blade for Quiet, Low-Wind Air Conditioning
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Solution Overview
Problem
Conventional air conditioners often result in uncomfortable temperature and humidity conditions due to high wind speeds, noise, and inefficient air discharge methods, which can lead to user discomfort and increased construction costs.
Innovation Solution
An air conditioner design featuring a housing with a discharge plate and a movable discharge blade that controls air flow, allowing for adjustable wind speed and direction, incorporating multiple holes for air discharge and a flow path guide to manage air flow paths, thereby minimizing wind speed and enhancing user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the RPM of the blower fan is increased to increase wind speed and wind volume, then air conditioning capability is improved, but noise is increased
Solution Approach 1:
The discharge blade is designed to be movable between a guide position and a closing position, allowing the air discharge method to be dynamically changed. When closed, air is discharged through blade holes at minimal wind speed for radiant cooling without noise; when opened, air is discharged through the outlet at higher wind speed for rapid cooling, thus adapting to different operational needs and resolving the noise-capability contradiction
Solution Approach 2:
The system changes the discharge parameters by switching between two modes: discharging air through the outlet at high wind speed for rapid cooling, and discharging air through blade holes at minimal wind speed for noiseless radiant cooling. This parameter change allows the system to achieve air conditioning capability without always operating at high noise levels
2Productivity
If the RPM of the blower fan is increased to increase wind speed, then air conditioning speed is improved, but user comfort is worsened due to direct contact with discharged air
Solution Approach 1:
The discharge blade can be moved between open and closed positions to dynamically switch discharge methods. When closed, air is discharged through multiple blade holes at minimal wind speed, creating radiant cooling effect that does not require direct contact, thus improving user comfort while maintaining air conditioning capability
Solution Approach 2:
The discharge blade includes multiple blade holes that segment the air discharge into multiple small streams rather than a single high-speed jet. This segmentation distributes the cooling effect and reduces the intensity of direct air contact, improving user comfort
3Object-generated harmful factors
If a radiant air conditioner is used to condition air without a blower fan, then noise is reduced, but a large panel is required and construction costs increase
Solution Approach 1:
The invention merges the advantages of both blower fan systems and radiant systems by combining a blower fan with a movable discharge blade that can switch between outlet discharge and blade hole discharge modes. This integration allows the system to achieve radiant cooling effects without requiring a large panel, thus reducing construction costs while maintaining low noise operation
Solution Approach 2:
The discharge blade serves multiple functions: it guides air discharge direction when open, and acts as a radiant discharge surface when closed. This multi-functionality allows the same component to achieve both conventional and radiant cooling effects, eliminating the need for separate large panels required by pure radiant systems
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 provides comfortable air conditioning with minimal wind speed, reduces noise, and improves user satisfaction by controlling air flow and discharge methods, while maintaining effective air conditioning performance.
Implementation Method 1
a heat exchanger disposed inside the housing; a blower fan configured to blow air heat-exchanged by the heat exchanger
Implementation Method 2
a discharge blade configured to move between a guide position at which a direction of the air blown from the blower fan and discharged to the outlet is controlled, and a closing position at which the outlet is closed
Data Source
AI summary
An air conditioner includes a discharge blade configured to move between a guide position at which a direction of air blown from a blower fan and discharged to an outlet is controlled, and a closing position at which the outlet is closed, wherein the discharge blade includes a plurality of blade holes through which the air is discharged through the discharge blade at the closing position, wherein the discharge blade moves between the guide position and the closing position and controls an air flow from the blower fan to a discharge plate or the outlet. Through this configuration, an air flow discharged to the outside of the housing can be controlled by operation of the discharge blade.