Clothing Dryer Mist Control for Wrinkle Removal and Drying Balance
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Solution Overview
Problem
Conventional clothing dryers face challenges in effectively removing wrinkles from clothing, as they often either under-supply or over-supply mist, leading to insufficient wrinkle removal or drying issues.
Innovation Solution
A control method for a clothing dryer that detects the amount of clothing, calculates and sprays mist equivalent to twice the standard regain per unit weight, diffuses the mist through intermittent drum rotation, and dries at a fiber rearrangement temperature between 60-70°C, with optional secondary misting and steam conversion to enhance wrinkle removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed amount of mist is sprayed during wrinkle removal, then the drying process is simple, but the wrinkle removal performance is insufficient due to under-supply or over-supply of mist
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the mist spraying amount based on detected clothing weight. The controller modifies the mist quantity parameter in real-time according to the actual clothing load, transforming a fixed-parameter system into a variable-parameter system that adapts to different conditions, thereby improving wrinkle removal performance without requiring complex additional hardware
Solution Approach 2:
The patent implements feedback control by using a weight sensor to detect the clothing weight and feeding this information back to the controller. The controller then adjusts the mist spraying amount based on this feedback, creating a closed-loop control system that automatically optimizes mist supply according to the actual clothing load, resolving the contradiction between simple control and effective wrinkle removal
2Manufacturing precision
If mist is sprayed to remove wrinkles, then wrinkle removal performance improves, but drying efficiency decreases due to additional moisture
Solution Approach 1:
The patent applies partial action by spraying only the necessary amount of mist equivalent to twice the standard regain of the clothing, rather than excessive misting. This controlled partial application provides sufficient moisture for wrinkle removal while minimizing the impact on drying efficiency, achieving a balance between the two competing objectives
Solution Approach 2:
The patent implements dynamics by making the mist spraying amount variable rather than fixed. The system dynamically adjusts mist quantity based on real-time weight detection, allowing the wrinkle removal process to adapt to different clothing loads and types, thereby improving wrinkle removal performance while maintaining optimal drying efficiency through adaptive control
3Manufacturing precision
If mist is sprayed uniformly regardless of clothing amount, then the control process is simple, but mist distribution becomes uneven leading to poor wrinkle removal
Solution Approach 1:
The patent applies parameter changes by adjusting the mist spraying amount parameter based on the detected clothing weight. The system transforms a static spraying parameter into a dynamic one that changes according to the actual clothing load, ensuring uniform mist distribution across different clothing amounts without requiring complex manual adjustment procedures
Solution Approach 2:
The patent implements self-service by enabling the system to automatically determine and adjust the appropriate mist spraying amount based on weight detection. The controller autonomously calculates the required mist quantity equivalent to twice the standard regain, eliminating the need for user intervention or complex external control, thereby achieving uniform mist distribution while maintaining operational simplicity
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 method improves wrinkle removal performance by ensuring the optimal amount of mist is applied and distributed evenly, effectively removing wrinkles without over-drying the clothing.
Implementation Method 1
a mist generator to spray mist into the drum
Implementation Method 2
a heating unit to heat the air in the drum to a fiber rearrangement temperature
Implementation Method 3
a fan to circulate the air in the drum
Implementation Method 4
The air is heat-exchanged with external air by a condenser, with the result that humidity in the air is changed into condensed water
Data Source
AI summary
Disclosed herein is a control method of clothing dryer that sprays an appropriate amount of mist based on the amount of clothing and dries the clothing at a fiber rearrangement temperature to remove wrinkles from the clothing. Standard regain of clothing is confirmed, mist is sprayed such that an amount of mist equivalent to approximately twice the standard regain reaches the clothing, and the clothing is dried at the fiber rearrangement temperature, whereby wrinkles are removed from the clothing.