Ceiling Air Conditioner Blade with Through Holes for Still Air Mode
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Solution Overview
Problem
Conventional air conditioners often direct cooled or heated air directly at users, causing discomfort, and struggle to efficiently distribute air without creating drafts or condensation issues due to the design of the air discharge mechanism.
Innovation Solution
The air conditioner incorporates a blade with through holes and a guide system that adjusts air direction and speed, allowing air to be discharged towards the ceiling, reducing direct airflow and minimizing condensation by varying the thickness and inclination of the blade and through holes, and utilizing airflow controllers to wrap air around the blade, thereby creating a still air mode that prevents direct airflow from reaching users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the blower fan discharges air through an outlet in the form of direct airflow to a certain distance, then heat exchange efficiency is improved, but user comfort deteriorates due to direct airflow reaching the user
Solution Approach 1:
The outlet is divided into two distinct discharge paths: a first outlet for direct airflow that maintains heat exchange efficiency, and a second outlet with through holes for still air mode that prevents direct airflow from reaching users. This segmentation allows the system to switch between different discharge modes based on operational requirements.
Solution Approach 2:
The blade is designed to be movable between a first position (opening the first outlet for direct airflow) and a second position (closing the first outlet and opening the second outlet for still air mode). This dynamic positioning enables the system to adaptively switch between different air discharge modes to balance heat exchange efficiency and user comfort.
2Object-affected harmful factors
If the blade closes the outlet to prevent direct airflow, then user comfort is improved, but heat exchange efficiency deteriorates
Solution Approach 1:
The outlet is divided into two distinct discharge paths: a first outlet for direct airflow that maintains heat exchange efficiency, and a second outlet with through holes for still air mode that prevents direct airflow from reaching users. This segmentation allows the system to switch between different discharge modes based on operational requirements.
Solution Approach 2:
The blade is designed to be movable between a first position (opening the first outlet for direct airflow) and a second position (closing the first outlet and opening the second outlet for still air mode). This dynamic positioning enables the system to adaptively switch between different air discharge modes to balance heat exchange efficiency and user comfort.
3Object-affected harmful factors
If the guide surfaces are designed to change air direction towards the ceiling, then direct airflow is reduced, but device complexity increases
Solution Approach 1:
The guide surfaces are designed with curved geometries: a first guide surface with a curved shape to gradually change air direction, and a second guide surface that is substantially flat. The curved first guide surface efficiently redirects airflow toward the ceiling without requiring complex mechanical components, achieving the desired effect through geometric design alone.
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 design effectively prevents direct airflow from reaching users, ensuring comfortable indoor temperature distribution while reducing condensation and maintaining efficient heat exchange, meeting ASHRAE's still air condition standards.
Implementation Method 1
utilizing airflow controllers to wrap air around the blade, thereby creating a still air mode that prevents direct airflow from reaching users
Data Source
AI summary
An air conditioner according to an aspect of the present invention includes a housing arranged to be mounted on or embedded in a ceiling, a cover panel coupled to a lower portion of the housing, the cover panel including an inlet and an outlet, a blower fan configured to draw in air into the housing through the inlet and discharge air out of the housing through the outlet and a blade configured to open and close the outlet, the blade including a plurality of through holes to control the air discharged out of the housing through the outlet while the blade closes the outlet. With this structure, the air conditioner can discharge air in various ways by varying the wind direction, the wind speed, and the air amount of the discharged air.