Indoor AC Airflow Control for Wide Reach Without Drafts
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Solution Overview
Problem
Conventional indoor air conditioner units often create drafts and uneven air distribution, failing to effectively condition spaces without causing wind discomfort, especially when air conditioning loads are high.
Innovation Solution
The indoor air conditioner unit incorporates a control system that switches between normal and wide modes, utilizing adjustable wind-direction regulating plates to extend airflow vertically and horizontally, ensuring equal wind velocities in specific height ranges and reducing draft feelings by optimizing airflow patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional indoor air conditioner units blow air to condition the space, then air conditioning capacity is achieved, but drafts and uneven air distribution occur causing wind discomfort
Solution Approach 1:
The airflow is divided into multiple streams by the wind-direction regulating plate, which can be adjusted to create separate airflow paths. This segmentation allows the air conditioner to distribute air more evenly throughout the room rather than creating a single strong draft, thus maintaining cooling capacity while reducing wind discomfort
Solution Approach 2:
The wind-direction regulating plate is made adjustable to dynamically change airflow direction and distribution patterns. By dynamically adapting the airflow pattern to different operating conditions and room configurations, the system maintains effective air conditioning while minimizing draft feelings in various scenarios
2Productivity
If airflow is concentrated in a narrow range to maintain high wind velocity, then air conditioning efficiency is improved, but the airflow range is limited and cannot cover the entire body height
Solution Approach 1:
The wind-direction regulating plate directs airflow not only horizontally but also vertically at various angles. This dimensional expansion of airflow distribution allows the cooled air to reach different height levels in the room, covering the entire body height range while maintaining efficient air conditioning through optimized airflow paths
3Device complexity
If wind-direction regulating plate is fixed to simplify structure, then device complexity is reduced, but adaptability to different air conditioning needs is limited
Solution Approach 1:
The wind-direction regulating plate is designed to be adjustable rather than fixed, allowing users to dynamically change airflow direction and distribution patterns. This dynamic capability provides adaptability to different air conditioning needs, room configurations, and personal preferences while adding only minimal structural complexity through simple adjustment mechanisms
Data Source
AI summary
An air-conditioner indoor unit (10) is configured to be capable of changing the direction of an airflow that is blown out through a blow-out port (15). The air-conditioner indoor unit (10) includes a control unit (40) that switches between a normal mode and a wide mode. The control unit (40) switches to the wide mode when an air conditioning load is higher than a predetermined value and extends at least vertically a range that is to be reached by the airflow in an air-conditioning target space in the wide mode compared with the normal mode.