Airflow Flap Reset Control for Limited Swing Range
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Solution Overview
Problem
Air conditioners with wind direction changing flaps often move outside their intended swing range due to mishandling, leading to improper airflow direction.
Innovation Solution
Incorporating a controller that returns the wind direction changing flap to a reference position when set within a movable range, ensuring it stays within the designated swing range, even during user error.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the swing range of the wind direction changing flap is set to a part of the movable range, then the airflow direction can be optimized for specific installation positions, but the flap may move outside the intended swing range due to mishandling
Solution Approach 1:
The controller performs preliminary action by returning the wind direction changing flap to the reference position (one end of the movable range) before starting the swing operation. This preliminary reset ensures that even if the flap is manually moved outside the swing range, it will be corrected to the proper starting position before the automated swing begins, preventing the flap from operating outside the intended range.
2Adaptability or versatility
If the wind direction changing flap can be manually adjusted, then user flexibility is improved, but the flap may be moved to incorrect positions causing improper airflow
Solution Approach 1:
The controller monitors the flap position and provides feedback control by automatically returning the flap to the reference position before initiating the swing operation. This feedback mechanism ensures that any manual adjustments made by the user are corrected, and the flap starts from the precise reference position, maintaining position accuracy while still allowing manual adjustment capability.
Data Source
AI summary
In the air conditioner, determination is made whether or not a “3-Dimensional Swing” or a “Left/Right Swing” relating to movement of a left/right flap is set (step S2). When it is determined that the “3-Dimensional Swing” or “Left/Right Swing” is set (step S2: Yes), a determination is made whether or not the swing range of the left/right flap is set to a part of the movable range (step S3). When it is determined in step S3 that the swing range of the left/right flap is set (step S3: Yes), the left/right flap is once returned to the reference position (step S4), and then reciprocation of the left/right flap within the swing range is started (step S5).