Dryer Discharge Duct Filter Assembly for Lint Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Laundry treatment apparatuses with drying functions face issues with impurity accumulation and air contamination due to the discharge of lint and other impurities, which can lead to equipment breakdown and indoor air quality problems.
Innovation Solution
A laundry treatment apparatus with a filter assembly and impurity remover unit in the discharge duct, featuring rollers, a scraper, and a brush system to separate and store impurities, along with a separable impurity storage device, effectively filters and collects impurities from the air discharged during drying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a filter is installed in the discharge duct to remove impurities, then indoor air quality is improved, but the filter accumulates impurities that can cause equipment breakdown
Solution Approach 1:
The patent extracts the impurity accumulation problem from the main filter assembly by providing a separate, removable impurity storage device. The filter assembly continues to perform filtration while accumulated impurities are periodically removed and stored in the separate storage device, preventing filter breakdown and maintaining equipment reliability.
Solution Approach 2:
The patent segments the impurity collection function from the filtration function by providing a separate impurity storage device that can be independently removed and cleaned. This segmentation allows the filter to focus on filtration while impurities are managed separately, resolving the contradiction between maintaining air quality and preventing equipment failure.
2Reliability
If an impurity removal system is added to the laundry treatment apparatus, then equipment reliability is improved, but the device complexity increases
Solution Approach 1:
The impurity remover unit is designed to automatically clean the filter assembly without requiring external intervention. The scraper mechanism moves along the filter surface to remove accumulated impurities, which then fall into the storage device. This self-service capability maintains equipment reliability while minimizing the complexity of manual maintenance systems.
Solution Approach 2:
The patent merges the impurity removal function with the existing filter assembly structure. The scraper and storage device are integrated into the discharge duct system, sharing space and structural support with the filter assembly. This merging approach reduces overall device complexity compared to providing completely separate removal and storage systems.
3Ease of repair
If a removable impurity storage device is provided, then ease of maintenance is improved, but the device complexity increases
Solution Approach 1:
The impurity storage device is designed as a separate, removable component that can be easily detached from the discharge duct for cleaning and maintenance. This segmentation allows users to access and maintain the storage device without disassembling the entire filter assembly or duct system, significantly improving ease of maintenance while adding only minimal structural complexity.
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 solution enhances filtration capacity, prevents equipment breakdown, and improves indoor air quality by efficiently removing impurities from the air discharged during the drying process, making it suitable for commercial use.
Implementation Method 1
a filter unit located in the discharge duct and configured to filter air introduced into the discharge duct
Implementation Method 2
an impurity remover unit configured to separate, from the filter unit, impurities remaining on the filter unit
Implementation Method 3
The impurity storage device is located below the filter unit and is configured to store impurities separated from the filter unit by the impurity remover unit
Data Source
AI summary
A laundry treatment apparatus includes a connection duct into which air inside a drum, in which laundry is received, is discharged, and a discharge duct that extends in a longitudinal direction of the drum and that is connected to the connection duct. The laundry treatment apparatus also includes a filter assembly that has a filter unit located in the discharge duct and configured to filter air introduced into the discharge duct and an impurity remover unit configured to separate, from the filter unit, impurities remaining on the filter unit. The laundry treatment apparatus further includes an impurity storage device separable from the discharge duct. The impurity storage device is located below the filter unit and configured to store impurities separated from the filter unit by the impurity remover unit.