Air Deflector Linkage for Sealed Air Conditioner Outlets
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Solution Overview
Problem
Existing indoor units of air conditioners have gaps between the air deflector and air outlet when closed, affecting aesthetics and allowing dust and mildew entry, and limit air supply angles due to a stationary rotational axis.
Innovation Solution
An air deflector opening and closing mechanism with push-out devices and a rotation driving motor allows the air deflector to rotate externally, sealing the air outlet and enabling various air supply angles through a multi-link linkage mechanism and rack connecting rods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stationary rotational axis is used for the air deflector, then the structure is simple, but the air supply angles are limited and cannot achieve various directions
Solution Approach 1:
The air deflector mechanism transitions from a stationary rotational axis to a dynamically movable rotational axis. The rotational axis can now move along an arc trajectory, allowing the air deflector to achieve various air supply angles and directions. This dynamic adjustment capability resolves the contradiction by enabling multiple air supply angles while accepting increased mechanism complexity through the addition of drive components.
2Ease of operation
If rotation space is provided around the air deflector, then the deflector can rotate, but gaps are formed between the air outlet and air deflector when closed, affecting appearance aesthetics
Solution Approach 1:
The rotational function is extracted from the air outlet region and relocated to an external rotation driving motor. The air deflector is driven to rotate by this external motor, allowing the rotation mechanism to be positioned outside the air outlet area. This enables the air deflector to be fully closed against the air outlet when not in use, eliminating gaps and improving appearance aesthetics while maintaining rotational functionality.
3Ease of operation
If rotation space is provided around the air deflector, then the deflector can rotate, but gaps are formed that allow dust and mildew to enter, impairing indoor air cleanliness
Solution Approach 1:
The rotation mechanism is extracted and positioned externally, allowing the air deflector to maintain full contact with the air outlet when closed. This eliminates the gaps that would otherwise serve as entry points for dust and mildew, thereby preventing contamination of the indoor air while preserving the necessary rotational capability for air flow direction control.
4Device complexity
If the rotational axis position is stationary, then the structure is simple, but the air outlet cannot be completely closed, affecting sealing performance
Solution Approach 1:
The rotational axis transitions from a fixed stationary position to a movable position that can adjust along an arc trajectory. This dynamic positioning allows the air deflector to align perfectly with the air outlet for complete closure and sealing when required, while the rotational drive mechanism provides the necessary movement capability. The increased complexity of the movable axis mechanism is justified by the significant improvement in sealing performance.
Data Source
AI summary
An indoor unit of an air conditioner, comprising an air duct, an air outlet in communication with the air duct, and an air deflector for guiding the direction of air outflow of the air conditioner, with a volute tongue being provided at an end of the air duct proximately to the air outlet, wherein it further comprises a rotation driving motor in drive connection with a left support end of the air deflector.