Dryer Discharge Duct Filtration With Reciprocating Impurity Compression
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Solution Overview
Problem
Laundry treatment apparatuses with drying functions face issues with impurity accumulation on internal components and air contamination due to the discharge of impurities during the drying process, which can lead to equipment breakdown and indoor air quality issues.
Innovation Solution
A laundry treatment apparatus with a filter assembly and impurity remover unit that includes a compressor and brush to separate and compress impurities from the filter, allowing for efficient filtration and removal of impurities from the discharged air, and a drive unit to reciprocate the impurity remover along the filter for effective cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a filter is installed in the discharge duct to remove impurities, then air filtration capacity is improved, but device complexity increases due to the need for additional components like impurity remover units and drive mechanisms
Solution Approach 1:
The patent combines the filter unit, impurity remover unit, and drive unit into an integrated filter assembly that is installed as a single module in the discharge duct. This merging approach maintains effective air filtration while reducing overall device complexity compared to installing separate systems for each function.
Solution Approach 2:
The filter assembly serves multiple functions simultaneously: the filter unit captures impurities, the impurity remover unit cleans the filter surface, and the drive unit coordinates their operation. This multi-functionality allows a single device to address both air contamination and filter maintenance, improving filtration capacity without proportionally increasing system complexity.
2Reliability
If an impurity remover unit with compressor and brush is added to clean the filter, then reliability is improved by preventing filter clogging, but device complexity increases due to additional mechanical components
Solution Approach 1:
The impurity remover unit performs preliminary cleaning action on the filter surface by removing accumulated impurities before they can clog the filter. This preventive maintenance approach ensures reliable continuous operation of the filtration system without requiring complex manual intervention or shutdown procedures.
Solution Approach 2:
The filter assembly is designed to clean itself through the integrated impurity remover unit that automatically removes impurities from the filter surface. This self-service capability maintains filter effectiveness and system reliability without requiring external maintenance equipment or complex manual cleaning mechanisms.
3Productivity
If a drive unit is installed to reciprocate the impurity remover unit along the filter, then productivity is improved by enabling continuous filter cleaning, but device complexity increases due to the motor and gear mechanisms
Solution Approach 1:
The drive unit reciprocates the impurity remover unit along the filter surface in periodic cycles, enabling continuous cleaning action throughout the filter area. This periodic reciprocating motion ensures thorough cleaning productivity while using a relatively simple motor and gear mechanism compared to continuous or complex multi-axis cleaning systems.
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 air filtration capacity, prevents impurity accumulation, and maintains indoor air quality by effectively removing impurities from the discharged air, making it suitable for commercial laundry use.
Implementation Method 1
a filter unit located in the discharge duct and configured to filter air discharged from the drum
Implementation Method 2
a compressor located within the housing and configured to compress impurities within the housing
Implementation Method 3
a brush secured to the compressor and configured to separate, from the filter, impurities remaining on the filter
Data Source
AI summary
A laundry treatment apparatus includes a drum rotatably supported within a cabinet and configured to receive laundry therein, a connection duct into which air inside the drum 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 including a filter unit located in the discharge duct to filter air and an impurity remover unit configured to remove and compress impurities remaining on the filter unit.