Dryer Heating Control Based on Object Size and Moisture Detection
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Solution Overview
Problem
Conventional clothes dryers inefficiently manage energy consumption and drying uniformity due to their reliance on fabric weight rather than size and form, leading to uneven drying and excessive energy use, particularly when dealing with large or small items.
Innovation Solution
A controller-adjusted dryer system that collects information on the object's state through sensors, adjusting heating intensity and duration based on the object's size and form, using a combination of vibration and electric resistance sensors to optimize drying performance and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the dryer operates with maximum heating output for all drying cycles, then small items can be dried quickly, but large items cannot be evenly dried and energy is wasted on already dry items
Solution Approach 1:
The dryer dynamically adjusts the heating output based on real-time detection of item size and drying progress. The controller modifies heating power from maximum to lower levels during the drying cycle, enabling adaptive optimization for different item sizes and drying stages, thus achieving both fast drying for small items and even drying for large items while reducing energy waste.
Solution Approach 2:
The dryer uses sensors to continuously detect the state of items being dried and feeds this information back to the controller. Based on this feedback regarding item size, moisture content, and drying progress, the controller automatically adjusts heating output to match actual drying needs, preventing energy waste on already dry portions while maintaining high drying speed for items that need more drying.
2Measurement precision
If multiple electrode sensors are installed to detect clothing nature, then drying accuracy improves, but device complexity and cost increase
Solution Approach 1:
The dryer employs a single multi-functional sensor system that performs multiple detection tasks: identifying item size, determining fabric type, measuring moisture content, and tracking drying progress. This universal sensor replaces what would otherwise require multiple specialized sensors, thereby maintaining high measurement precision while reducing device complexity and cost.
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
Ensures complete drying while minimizing energy consumption by tailoring heating intensity and duration to the specific size and form of the clothing, preventing damage and achieving uniform drying results.
Implementation Method 1
a vibration sensor configured to measure a value corresponding to vibration of the drum
Implementation Method 2
an electrode sensor arranged to be able to contact the object to be dried distributed by the clothes distributor and having electric resistance changing by contact with an object containing moisture
Implementation Method 3
a heater configured to heat the air for clothes drying
Implementation Method 4
a blower configured to introduce air for clothes drying into the drum
Implementation Method 5
a drum configured to receive an object to be dried and be rotated by a motor
Data Source
AI summary
The present invention to provide a dryer having high drying efficiency and possible to energy saving operation.A controller (3) of the dryer (D) include an information receiver (33) configured to collect drying object information about a state of the Object© to be dried in the drum (2).A controller (3) of the dryer (D) controls an output of the heater to have an output per unit time lower than a predetermined output of normal based on a state of the object to be dried collected by the information receiver, and controls a drying ending time based on a state of the object to be dried and an output of the heater.