Laundry Dryer Scent Module Timing for Uniform Fragrance Deposition
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Solution Overview
Problem
Existing laundry equipment methods for depositing scent onto laundry are inefficient, causing mechanical disorders, environmental waste, and excessive scent consumption, with inadequate scent distribution and control.
Innovation Solution
A method for operating a laundry dryer with a scent supply module that includes a drying step, a pre-treating step for tumbling the drum with heated air off, and a scent treating step for spraying scent onto the laundry at controlled temperatures and intervals, ensuring effective scent deposition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If non-woven fabric is put into the drum together with laundry, then scent can be supplied and odor removed, but mechanical disorders occur and environmental waste is generated
Solution Approach 1:
The patent extracts the scent supply function from the non-woven fabric and transfers it to a dedicated scent supply module. The module includes a scent supply chamber with scent material and a scent supply nozzle that sprays scent directly into the drum, eliminating the need for non-woven fabric in the drum and preventing mechanical disorders while maintaining scent supply capability
Solution Approach 2:
The patent introduces a scent supply module as an intermediary device between the scent material and the laundry. This module uses a pump to supply scented water from the scent supply chamber through a nozzle into the drum, creating a controlled delivery system that avoids the problems of direct non-woven fabric contact with laundry
2Ease of manufacture
If non-woven fabric is used for scent supply, then scent can be deposited on laundry, but scent supply function decreases due to local contact
Solution Approach 1:
The patent uses hydraulic principles by employing a pump to pressurize and spray scented water through a nozzle into the drum. This creates a fine mist distribution that ensures uniform scent deposition on laundry surfaces, overcoming the local contact limitation of non-woven fabric
Solution Approach 2:
The patent segments the scent supply process into controlled stages: scent water is pumped from the chamber, pressurized, and sprayed through a nozzle as fine droplets. This segmentation allows precise control over scent distribution timing and pattern, improving overall scent supply efficiency
3Ease of manufacture
If solid type scent material is heated or vibrated, then scent can be emitted, but sufficient scent supply into drum is difficult
Solution Approach 1:
The patent changes the physical state of the scent material from solid to liquid solution form. The scent material is dissolved in water to create scented water, which can then be pumped and sprayed efficiently. This parameter change from solid to liquid enables much higher scent supply rates and better distribution throughout the drum
4Productivity
If liquid type scent material is sprayed into drum, then scent can be supplied, but excessive scent consumption occurs
Solution Approach 1:
The patent implements feedback control by using a sensor to detect the scent concentration or supply status in the drum and adjusting the pump operation accordingly. The controller monitors the scent supply process and regulates the pump to maintain optimal scent levels, preventing excessive consumption while ensuring adequate scent deposition
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 method maintains the reliability and durability of the scent supply module while ensuring effective scent deposition onto the laundry, reducing waste and consumption.
Implementation Method 1
a method for operating a laundry dryer with a scent supply module that includes a drying step, a pre-treating step for tumbling the drum with heated air off, and a scent treating step for spraying scent onto the laundry
Data Source
AI summary
An operating method for a laundry drier which has a rotatable drum mounted inside a main body, a heater for heating the air flowing into the drum; and a scent supply module for spraying scent into the drum, comprising: a drying step of drying the laundry by supplying hot air heated by the heater; a pre-treating step of tumbling the drum while supplying air with the heater off; and a scent treating step of spraying scent onto the laundry which has passed through the pre-treating step. Since the scent is sprayed on after the pre-treating step, the scent can be effectively deposited on the laundry.