Ceiling Air Conditioner Vane Control for Floor Temperature Uniformity
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Solution Overview
Problem
Ceiling-type indoor air conditioning units fail to effectively control floor temperature, leading to temperature differences between the upper and lower sides of a room, which can result in inadequate heating or cooling, especially when the heating load is low.
Innovation Solution
A control method for ceiling-type indoor air conditioning units that includes a vane module system to adjust airflow direction, utilizing a first and second vane module pair to minimize temperature differences by sensing room and floor temperatures and adjusting their inclination angles based on temperature comparisons and predetermined time thresholds.
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 remains simple, but the floor temperature cannot be effectively controlled leading to temperature differences between upper and lower sides of the room
Solution Approach 1:
The control system incorporates floor temperature sensing and uses this feedback to dynamically adjust vane inclination angles. The controller receives temperature information from both indoor air sensors and floor temperature sensors, then modulates the first and second vanes accordingly to direct airflow toward the floor when heating is needed, thereby eliminating temperature stratification while maintaining reasonable system complexity through intelligent control algorithms.
Solution Approach 2:
The vane modules are designed with dynamic adjustment capability, allowing their inclination angles to change based on real-time temperature conditions. The first vane module and second vane module can independently adjust their angles to optimize airflow distribution patterns, enabling the system to adapt to varying heating loads and floor temperature conditions without requiring additional hardware components.
2Stability of the object's composition
If the vane modules adjust airflow direction to minimize temperature differences, then temperature distribution uniformity improves, but the control algorithm and sensing requirements increase system complexity
Solution Approach 1:
The control system applies different control strategies to different regions of the room by independently adjusting the first and second vane modules. When floor temperature is low, airflow is directed downward toward the floor; when floor temperature approaches target temperature, the vanes adjust to distribute air more uniformly. This localized control approach achieves temperature uniformity without requiring complex global optimization algorithms.
Solution Approach 2:
The system changes the inclination angle parameters of the vane modules based on temperature differential measurements. By monitoring the difference between indoor air temperature and floor temperature, the controller adjusts vane angles to modify airflow patterns, thereby changing the thermal distribution parameters in the room to achieve more uniform temperature composition.
3Productivity
If the system provides targeted heating to the floor, then heating efficiency improves, but the device requires additional sensing and control mechanisms
Solution Approach 1:
The existing airflow control vanes are made multi-functional by enabling them to perform both their traditional airflow direction control function and an additional floor heating function. By adjusting the inclination angles of the first and second vane modules, the same structural components achieve targeted floor heating, eliminating the need for separate heating devices or additional sensing mechanisms beyond what is already present in the airflow control system.
Data Source
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 little 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 between the room temperature Tp and a floor temperature Tb.