System and method for monitoring a reduced static feature in a laundry treatment appliance
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Solution Overview
Problem
Conventional dryer appliances generate static electricity during the drying process, leading to consumer dissatisfaction and inefficiencies, such as extended cycle times and wet clothing, due to complex and ineffective static reduction systems.
Innovation Solution
A laundry treatment appliance with a moisture sensor and moisture supply system that monitors moisture levels and introduces moisture into the chamber to reduce static electricity by adjusting the drying cycle based on target moisture goals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional static reduction systems are used in dryer appliances, then static electricity is reduced, but device complexity increases and manufacturing cost increases
Solution Approach 1:
The patent extracts the static reduction function from complex mechanical or chemical systems and implements it through a simple moisture injection mechanism. By isolating the core function (adding moisture to reduce static) from unnecessary system components, the solution achieves static reduction while maintaining system simplicity and lowering manufacturing costs.
Solution Approach 2:
The patent changes the physical parameter of moisture content in the drying chamber to address static electricity. By controlling the moisture level through injection and monitoring it with sensors, the system dynamically adjusts conditions to prevent static buildup without requiring complex static reduction hardware.
2Object-affected harmful factors
If conventional static reduction systems are used in dryer appliances, then static electricity is reduced, but manufacturing cost increases
Solution Approach 1:
The patent employs inexpensive moisture injection components and standard humidity sensors rather than expensive specialized static reduction equipment. The system uses readily available parts that can be manufactured at low cost, making the solution economically viable while effectively reducing static electricity.
3Object-affected harmful factors
If conventional static reduction systems are used in dryer appliances, then static electricity is reduced, but cycle time increases
Solution Approach 1:
The patent implements a feedback control system using humidity sensors to monitor moisture levels in real-time. The system continuously adjusts moisture injection based on sensor readings, allowing dynamic optimization of the drying process. This ensures static reduction is achieved without unnecessarily extending cycle time, as the system stops adding moisture once the target humidity is reached.
Solution Approach 2:
The system dynamically adjusts operating conditions during the drying cycle by modulating moisture injection based on real-time humidity measurements. This dynamic control allows the dryer to adapt to varying load conditions and moisture rates, maintaining optimal performance throughout the cycle rather than using fixed, time-consuming static reduction protocols.
4Object-affected harmful factors
If conventional static reduction systems are used in dryer appliances, then static electricity is reduced, but clothing dryness deteriorates
Solution Approach 1:
The patent uses humidity sensors to provide continuous feedback on the drying chamber conditions and clothing moisture state. This feedback enables precise control of the drying process, allowing the system to achieve the optimal balance between static reduction and clothing dryness by adjusting moisture injection in real-time based on actual conditions rather than fixed parameters.
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
Effectively reduces static electricity while ensuring desired dryness levels are reached, avoiding prolonged cycle times and wet clothing, by dynamically controlling the drying process.
Implementation Method 1
a moisture sensor provided within the chamber to sense a moisture level of the laundry load
Implementation Method 2
initiating a spray operation for providing moisture into the chamber... effectively reduces static electricity
Data Source
AI summary
A method of operating a laundry treatment appliance including a chamber for receiving a laundry load and a water supply provided within the chamber includes determining a target moisture level of the laundry load; initiating a drying cycle of the laundry load, the drying cycle including a primary drying time; initiating a spray operation for providing moisture into the chamber; determining that a measured moisture level of the laundry load meets a moisture goal based on the target moisture level; and ceasing the spray operation in response to determining that the measured moisture level meets the moisture goal.