Multi-Path Water Filter Assembly to Prevent Blockages in Ice Machines
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Solution Overview
Problem
Existing water filters in refrigeration appliances are prone to blockages, which reduces their effectiveness or prevents them from operating, and they often have insufficient filtration time due to space constraints in ice-making appliances.
Innovation Solution
A water filter assembly with multiple flow paths and layers of filtration media, including a filter body with vertical barriers creating labyrinthine flow paths, and standpipes and overflow caps to manage water flow and prevent clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single flow path is used in the water filter, then the device complexity is reduced, but the reliability decreases due to blockages
Solution Approach 1:
The filter body is divided into multiple independent flow paths (first flow path, second flow path, third flow path) that process water simultaneously. Each flow path contains filtration media and can operate independently, ensuring that blockage in one path does not stop the entire filtration system. This segmentation increases reliability while maintaining manageable device complexity through modular design.
2Duration of action of moving object
If the water filter assembly is made compact to fit ice-making appliances, then the volume is reduced, but the filtration time becomes insufficient
Solution Approach 1:
The filter assembly utilizes vertical stacking of multiple flow paths and filtration media layers within a compact footprint. By arranging flow paths vertically and using multiple layers of filtration media (coarse and fine) in sequence, the design extends the filtration process in the vertical dimension rather than requiring horizontal expansion, thereby maintaining adequate filtration time within a compact volume.
3Reliability
If multiple layers of filtration media are added to improve filtration effectiveness, then the purification quality increases, but the device complexity increases
Solution Approach 1:
The filtration media are segmented into distinct functional layers: coarse filtration media in the first flow path for initial particle removal, and fine filtration media in the second and third flow paths for refined filtration. This segmentation allows each layer to specialize in specific filtration tasks, improving overall effectiveness while keeping the structure organized and maintainable.
Solution Approach 2:
Different regions of the filter assembly use different types of filtration media tailored to local requirements. The first flow path uses coarse media where high-flow capacity is needed, while the second and third flow paths use fine media where thorough filtration is prioritized. This local optimization enhances filtration effectiveness without uniformly increasing complexity throughout the entire device.
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 water filter assembly effectively minimizes the risk of blockages, ensures adequate filtration time, and maintains operational efficiency even if one flow path becomes clogged, all within a compact design suitable for refrigeration appliances.
Implementation Method 1
A water filter assembly with multiple flow paths and layers of filtration media
Data Source
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AI summary
A water filter assembly may include a filter body having vertical side walls that defines a cavity within which one or more filter layers may be housed, the filter body further including a plurality of vertical barriers that define a plurality of flow paths that converge on an outlet hole, the vertical barriers further including a plurality of cutouts defining alternative overflow paths permitting water therethrough, and each filter layer including a plurality of vertical barriers that define a plurality of flow paths.