Dryer Lint Filter Layout for Fan Protection and Easy Cleaning
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Solution Overview
Problem
Conventional clothing dryers often fail to effectively filter foreign matter such as lint from the air discharged during the drying process, which can lead to clogging and damage within the dryer components.
Innovation Solution
A clothing dryer design incorporating a detachable filter device with a filter duct and net filter, positioned downstream of the drying drum and upstream of the fan, to capture foreign matter from the discharged air, enhancing usability and reliability by allowing easy filter replacement and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter device is installed in the dryer to remove foreign matter from air, then reliability is improved by preventing damage to fan and other components, but device complexity increases due to additional filter components and installation requirements
Solution Approach 1:
The filter device is nested within the existing dryer structure, specifically integrated into the air circulation system between the drying drum and fan. The filter housing utilizes the existing cabinet space, and the filter element is positioned within the air flow path without requiring external mounting structures. This nesting approach adds the filtering function while minimizing increase in overall device complexity.
Solution Approach 2:
The filter device incorporates a detachable filter element that can be easily removed and cleaned by the user without requiring disassembly of the entire dryer or specialized tools. The filter housing includes a simple access mechanism that allows users to maintain the filter themselves, reducing the need for professional service and simplifying the overall system maintenance requirements.
2Ease of operation
If the filter device is made detachable for easy maintenance, then ease of operation is improved by allowing user removal and cleaning, but reliability may worsen due to potential improper reinstallation or loss of sealing
Solution Approach 1:
The filter housing includes pre-positioned sealing surfaces and alignment features that guide the filter element into the correct position during reinstallation. The housing structure incorporates built-in sealing mechanisms that automatically engage when the filter is properly seated, ensuring reliable airflow sealing without requiring complex adjustment procedures by the user.
Solution Approach 2:
The filter mounting interface is designed with symmetric alignment features and uniform sealing surfaces that ensure the filter element seats evenly and consistently in the housing. This equipotential design eliminates the need for precise manual alignment, allowing users to achieve proper sealing through simple insertion while maintaining reliable airflow paths.
3Reliability
If the filter is positioned downstream of the drying drum and upstream of the fan, then reliability is improved by filtering air before it reaches the fan, but device complexity increases due to integration requirements within the existing air flow path
Solution Approach 1:
The filter device is merged with the existing air circulation components of the dryer. The filter housing is integrated into the cabinet structure, and the filter element is positioned within the existing air flow path between the drying drum and fan. This merging approach combines the filtering function with the existing air handling system without requiring separate air flow channels or additional complex integration mechanisms.
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 effectively filters out foreign matter, preventing damage to the fan and improving the overall reliability and usability of the dryer by ensuring clear airflow and easy maintenance of the filter.
Implementation Method 1
a blowing case having a fan mounted therein to generate suction force in the drying drum
Implementation Method 2
a filter net mounted inside the filter frame to filter out foreign matter
Data Source
AI summary
The clothing dryer includes a filter device to filter foreign matter in a flow channel along which high-temperature, high-humidity air having dried an object to be dried is discharged. The filter device is mounted so as to be moved inward into and outward from a cabinet in a horizontal state. Usability and reliability of the clothing dryer are improved.