Ceiling type indoor unit of air conditioner
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Solution Overview
Problem
Ceiling-type indoor air conditioner units fail to effectively control floor temperature, leading to temperature differences between the floor and upper areas of a room, which can result in inefficient heating or cooling.
Innovation Solution
A control method for ceiling-type indoor air conditioner units that includes a system to sense floor temperature and adjust the discharge directions of vanes to minimize temperature differences between the floor and upper areas, using a vane module with a first and second vane pair to dynamically change inclination angles based on temperature comparisons and predetermined times to optimize heating or cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the ceiling-type indoor unit provides only airflow control according to indoor temperature and target temperature, then the control system is simple, but the floor temperature cannot be effectively controlled leading to temperature differences between floor and upper areas
Solution Approach 1:
The control system performs preliminary action by detecting floor temperature in advance and adjusting airflow direction before significant temperature differences develop. The vane module proactively changes inclination angles based on floor temperature comparisons, preventing temperature stratification rather than reacting to it after it occurs.
Solution Approach 2:
The system implements dynamics by making the vane inclination angles adjustable and variable based on real-time floor temperature conditions. The control method dynamically changes airflow direction parameters according to detected floor temperature, transitioning from static airflow control to adaptive dynamic control that responds to thermal conditions.
2Temperature
If the vane module frequently adjusts inclination angles to minimize temperature differences, then temperature uniformity improves, but energy consumption increases
Solution Approach 1:
The control system implements periodic action by adjusting vane inclination angles at specific time intervals and under specific temperature conditions rather than continuously. The method compares floor temperature with indoor air temperature at predetermined times and adjusts vanes only when temperature differences exceed thresholds, creating a rhythmic, periodic control pattern that reduces unnecessary adjustments.
Solution Approach 2:
The system changes parameters selectively by adjusting only the vane inclination angle parameter when floor temperature conditions warrant it, rather than continuously adjusting all control parameters. This selective parameter change approach minimizes energy consumption by making adjustments only when and where needed to maintain temperature uniformity.
3Measurement precision
If the system uses multiple vanes with independent control to optimize temperature distribution, then temperature control precision improves, but device complexity increases
Solution Approach 1:
The control system applies segmentation by dividing the airflow control function into multiple independent vane elements that can be individually adjusted. Each vane can be controlled independently to target specific airflow directions, allowing precise control of air distribution patterns to different zones within the room, thereby improving temperature control precision through segmented control.
Solution Approach 2:
The vane module achieves universality by designing a multi-functional control mechanism that can serve multiple purposes: controlling overall airflow direction, adjusting inclination angles for different temperature conditions, and distributing air to various zones. This single multi-functional vane module replaces what would otherwise require multiple separate control systems, maintaining precision while managing complexity.
Data Source
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AI summary
According to the present disclosure, it is determined whether or not the room is heated according to a temperature difference between a room temperature Tp and a set temperature Ts, and even when there is litte or no heating load due to the temperature difference between the room temperature Tp and the set temperature Ts, the floor heating is performed by determining a temperature difference beteen the room temperature Tp and a floor temperature Tb.