Clothes Dryer Blocking Member Design for Foreign Substance Filtration
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Solution Overview
Problem
Existing dryers for clothes face issues with foreign substances, such as flexible and rigid items, entering the air passage and damaging components or causing noise, due to the lack of effective filtration and collection mechanisms, leading to reduced performance and potential fires from lint accumulation.
Innovation Solution
A dryer design incorporating a blocking member with inclined and rounded ribs to filter foreign substances before they enter the air passage, eliminating the need for a separate foreign substance dropping groove and integrating a lint filter to prevent damage and noise by guiding foreign substances back into the drying drum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a foreign substance dropping groove is defined in the front end of the blower, then foreign substances can be collected, but the structure becomes more complex and requires separate maintenance mechanisms
Solution Approach 1:
The blocking member integrates both the foreign substance collection function and the air passage guidance function into a single component. The blocking member is positioned at the inlet of the guide duct and simultaneously blocks foreign substances from entering the air passage while guiding clean air into the guide duct, eliminating the need for separate dropping grooves and maintenance mechanisms.
2Reliability
If foreign substances are collected in a dropping groove, then heavy foreign substances can be removed, but light foreign substances still enter the blower and cause damage
Solution Approach 1:
The blocking member features a selectively permeable structure with blocks and gaps of different sizes. The blocks are configured to block light foreign substances (cotton swabs, hairpins) while the gaps allow air and lint to pass through. This local differentiation in the blocking member's structure enables it to filter foreign substances of various sizes and densities at different locations, preventing both light and heavy foreign substances from damaging the blower.
3Reliability
If foreign substances are deposited in the dropping groove, then they can be collected, but lint accumulates on them and significantly increases air flow resistance
Solution Approach 1:
The blocking member is positioned at the inlet of the guide duct, extracting foreign substances from the air flow before the air enters the guide duct and blower. By blocking foreign substances at this early stage, the air flow path remains clear of accumulated foreign substances and lint, preventing the significant increase in air flow resistance that would occur if foreign substances were allowed to accumulate in a dropping groove downstream.
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
This solution prevents foreign substances from entering the air passage, reducing the risk of damage to components, minimizing noise, and eliminating the need for separate maintenance, thereby enhancing the dryer's performance and safety.
Implementation Method 1
a heating unit disposed on one position of the suction passage to heat the air introduced into the suction passage at a high temperature
Implementation Method 2
a blower mounted on one position of the exhaust passage to forcibly blow the air within the drying drum
Implementation Method 3
a blocking member disposed at a position where the air discharged from the drying drum flows, the blocking member configured to filter foreign substances contained in the air discharged from the drying drum
Implementation Method 4
one surface of each of the plurality of blocking ribs defines an inclination surface that is inclined at an acute angle, which is less than an angle of 90 degrees, with respect to a vertical surface
Data Source
AI summary
Provided is a dryer for clothes. The dryer for the clothes includes a cabinet, a drying drum accommodated in the cabinet, a suction passage supplying hot air into the drying drum, a heating unit disposed on one position of the suction passage to heat the air introduced into the suction passage at a high temperature, an exhaust passage through the hot air discharged from the drying drum flows, a blower mounted on one position of the exhaust passage to forcibly blow the air within the drying drum, a lint filter mounted on the other position of the exhaust passage, a guide duct defining a portion of the exhaust passage to accommodate the lint filter therein, and a blocking member disposed at a position where the air discharged from the drying drum flows.