Recessed Washer Filter Assembly With Water Injection
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Solution Overview
Problem
In existing washers, the mesh filter is projected from the inner wall, leading to abrasion and tearing, allowing filtered particles to re-enter the wash tub and failing to enhance wash efficiency by injecting filtered water onto laundry.
Innovation Solution
A filter assembly with a closed-type filter unit and cap configuration that filters particles from ascending water without projecting from the wash tub, allowing filtered water to be injected back into the tub, enhancing wash performance by preventing particle re-introduction and ensuring efficient water circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mesh net is projected from the inner wall to filter particles, then the filtering function is improved, but the mesh net is abraded or torn by collision with laundry
Solution Approach 1:
The mesh net is extracted from the projected position and integrated into the filter assembly that is recessed within the inner wall. The filter assembly includes a filter case with a mesh net positioned inside, separating the filtering function from the laundry space, thus preventing collision damage while maintaining filtering capability.
2Reliability
If the mesh net is used to filter particles, then particle filtration is improved, but filtered particles may re-enter the wash tub
Solution Approach 1:
The mesh net is nested within the filter case structure, which is further nested within the filter assembly recessed in the inner wall. This multi-level nesting creates a contained filtering system where particles are trapped by the mesh net and cannot escape back into the wash tub, solving the particle re-entry problem.
3Reliability
If the mesh net filters water only, then particle removal is improved, but wash efficiency cannot be enhanced by injecting filtered water
Solution Approach 1:
The filter assembly is designed with multi-functionality: it not only filters particles through the mesh net but also serves as a water injection system. The filter case includes an injection hole that directs filtered water onto the laundry, combining filtering and washing functions in one assembly to enhance wash efficiency.
4Strength
If the filter assembly is recessed in the inner wall, then mesh net protection is improved, but the assembly complexity increases
Solution Approach 1:
The filter assembly is segmented into distinct functional components: a filter case containing the mesh net, a cap covering the assembly, and an injection hole for water delivery. This segmentation allows each component to perform its specific function while being protected within the recessed structure, balancing protection with manageable 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 filter assembly prevents particle re-introduction and enhances wash efficiency by ensuring filtered water is injected onto laundry, reducing damage and improving washing performance without projecting from the inner wall.
Implementation Method 1
a filter unit provided between the inner wall and the cap, configured to maintain a prescribed space from the cap
Implementation Method 2
a cap having an injection hole to enable the water through the filter unit to be injected into the wash tub
Data Source
AI summary
A filter assembly of a washer is disclosed, by which laundry can be prevented from being damaged by friction with the filter assembly in a manner of efficiently filtering off particles contained in water in the course of washing the laundry. In a washer including an inner wall having an outlet and a circulation passage provided between the inner wall and a wash tub to enable water to circulate to the outlet from a bottom of the wash tub, the present invention includes a filter unit filtering off particles from the water discharged from the outlet and a cap having an injection hole to enable the water through the filter unit to be injected into the wash tub.