Variable Compressor Dehumidifier for Stable Humidity Control
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Solution Overview
Problem
Conventional dehumidifiers with fixed-type compressors experience frequent power supply and cutoff, leading to overcurrent issues, operational interruptions, and inefficient energy use due to their inability to adjust dehumidification based on ambient humidity and temperature.
Innovation Solution
A dehumidifier equipped with a variable compressor that adjusts refrigerant gas compression by varying the rotation speed of its driving shaft, along with a control unit that adjusts the blower fan speed, to maintain target humidity levels and prevent overload, thereby reducing power circuit breaker operations and enhancing dehumidification efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed-type compressor is used to control dehumidification, then the structure is simple, but power supply and cutoff are repeated causing overcurrent and operational interruptions
Solution Approach 1:
The patent applies the dynamics principle by replacing the fixed-type compressor with a variable compressor whose rotation speed can be dynamically adjusted. The control unit varies the rotation speed of the driving shaft according to ambient humidity levels, allowing continuous operation without repeated power supply and cutoff. This eliminates overcurrent issues and operational interruptions while maintaining simple structural design.
2Use of energy by moving object
If a fixed-type compressor operates at constant speed, then the control is simple, but energy efficiency decreases due to repeated power supply and cutoff
Solution Approach 1:
The variable compressor dynamically adjusts its rotation speed based on ambient humidity levels detected by the humidity sensor. The control unit varies the driving shaft speed to match actual dehumidification needs, eliminating energy waste from repeated start-stop operations. This achieves high energy efficiency with a relatively simple control mechanism that only requires speed variation based on humidity feedback.
3Productivity
If a variable compressor is used to adjust rotation speed, then dehumidification efficiency increases, but the device complexity increases
Solution Approach 1:
The variable compressor adjusts its rotation speed dynamically based on ambient humidity levels, enabling continuous operation at optimal speeds for different dehumidification conditions. This significantly improves dehumidification efficiency by eliminating repeated start-stop cycles and maintaining appropriate compression levels throughout operation.
Solution Approach 2:
The control unit receives feedback from the humidity sensor about ambient humidity levels and adjusts the compressor's rotation speed accordingly. This closed-loop feedback system ensures the compressor operates at the optimal speed for current conditions, maximizing dehumidification efficiency while using a relatively simple feedback-based control approach.
4Adaptability or versatility
If power is repeatedly supplied and cut off to a fixed compressor, then dehumidification amount can be adjusted, but overcurrent occurs causing circuit breaker operation
Solution Approach 1:
Instead of adjusting dehumidification amount through repeated power supply and cutoff, the variable compressor adjusts its rotation speed dynamically. This allows continuous operation at different speeds to match dehumidification requirements, completely eliminating overcurrent issues and circuit breaker operations while maintaining full adaptability for dehumidification control.
Solution Approach 2:
The system changes the operating parameter from binary power supply/cutoff to continuous rotation speed variation. By controlling the compressor's rotation speed as a variable parameter rather than using on/off control, the system achieves dehumidification adjustment without causing overcurrent or triggering circuit breakers, ensuring power circuit stability.
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
The variable compressor and control unit combination significantly reduce power circuit breaker operations, ensure stable dehumidification, and increase energy efficiency by adjusting the compressor and fan speeds based on humidity and temperature, preventing overloads and maintaining optimal dehumidification performance.
Implementation Method 1
a variable compressor (10) adjusting an amount of a refrigerant gas compressed by varying a rotation speed of a driving shaft according to an input control signal
Implementation Method 2
a condenser (20) liquefying the compressed refrigerant gas supplied by the variable compressor (10)
Implementation Method 3
a heat-exchanger (30) vaporizing the liquefied gas to cool introduced air
Implementation Method 4
condensing vapor in the introduced air into water to remove the water
Data Source
AI summary
The dehumidifier, according to one embodiment of the present invention, comprises: a variable compressor which varies the rotation speed of a driving shaft according to an input control signal and adjusts an amount of a refrigerant gas compressed by the rotation of the driving shaft; a condenser for liquefying the compressed refrigerant gas received from the variable compressor; a heat exchanger for cooling flown air by vaporizing the liquefied refrigerant gas, and condensing vapors of the flown air into water to remove the water by using the cooling air; a blower fan for supplying outside air to the heat exchanger by forming an air flow according to the driving speed of a blower motor; and a control unit for generating the control signal according to the input signal so as to adjust the rotation speed of the driving shaft.