Clothing management apparatus and control method therefor
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Solution Overview
Problem
Conventional clothes care apparatuses face inefficiencies in power consumption during drying cycles, especially when moisture levels decrease, leading to poor drying efficiency.
Innovation Solution
A clothes care apparatus that manages power efficiently by using outside air and controlling a heat exchanger through a controller that adjusts damper positions and blower fan operations based on internal and external humidity and temperature conditions, minimizing compressor usage when external humidity is low.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heat pump operation is performed until the end of drying is identified, then the drying of objects with large amount of moisture is effective, but the drying efficiency with respect to power consumption becomes poor when the amount of moisture is reduced
Solution Approach 1:
The system dynamically switches between heat pump mode and natural convection mode based on real-time monitoring of moisture levels and temperature. The controller adjusts the operational state of dampers and fans to optimize energy consumption at different stages of the drying cycle, transitioning from high-power heat pump operation to low-power natural convection when conditions permit
Solution Approach 2:
The system changes operational parameters (damper positions, fan speeds, heat pump activation) based on detected environmental conditions (temperature, humidity levels). When the chamber reaches reference temperature and humidity thresholds, the system transitions to a different operational regime that consumes less power while maintaining drying effectiveness
2Productivity
If the compressor is driven at high frequency to maintain drying performance, then the drying efficiency is improved, but the power consumption increases
Solution Approach 1:
The system uses periodic monitoring of temperature and humidity conditions to determine when to activate or deactivate the compressor. Rather than continuous high-frequency operation, the compressor is activated only when environmental conditions indicate the need for additional drying capacity, reducing overall power consumption while maintaining drying efficiency
Solution Approach 2:
The controller continuously monitors chamber temperature and humidity levels, using this feedback to adjust compressor frequency and damper positions. When feedback indicates that drying targets are approaching or environmental conditions are favorable, the system reduces compressor activity, optimizing the balance between productivity and energy consumption
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for a smooth and efficient drying cycle with reduced power consumption by utilizing outside air when internal humidity is high and external humidity is low, optimizing drying performance.
Implementation Method 1
a heat exchanger (30) configured to heat the air
Implementation Method 2
a compressor (35) configured to compress the refrigerant
Implementation Method 3
a blower fan configured to generate an air flow
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A clothes care apparatus includes a chamber, a first damper, a second damper, a heat exchanger, at least one blower fan, a sensor portion, and a controller. The first damper is configured to control an airflow from inside the chamber to outside the chamber. The second damper is configured to control the airflow into the chamber from the outside. The heat exchanger is provided with a compressor and configured to exchange heat with air in the chamber. The at least one blower fan is configured to generate the airflow. The sensor portion is configured to obtain a temperature and humidity inside and outside of the chamber. The controller is configured to start a drying cycle, control the first and second damper to be opened or closed, and control the heat exchanger and the at least one blower fan by comparing the internal humidity with the external humidity.