Washing Machine Pump Filter Layout for Debris Separation
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Solution Overview
Problem
Existing washing machine pumps face challenges in effectively filtering out foreign substances from wash water, leading to accumulation and growth of debris, and require a filter that is easily adjustable in position.
Innovation Solution
A detachable pump filter with a hollow cylindrical shape, featuring a blocking wall and multiple collection holes, along with a conical filter part, is designed to efficiently filter out foreign substances. The filter includes an inflow hole, a handle for easy rotation, and a direction adjustment rib for precise positioning, ensuring effective drainage and reduced accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pump filter is used to filter out foreign substances from wash water, then filtering effectiveness is improved, but foreign substances accumulate and grow on the filter
Solution Approach 1:
The pump filter is divided into multiple filter parts with different pore sizes. The first filter part has a first pore size for filtering larger foreign substances, while the second filter part has a second pore size for filtering smaller foreign substances. This segmentation allows the filter to effectively capture various sizes of debris while the blocking wall prevents accumulation by directing flow through both filter parts.
Solution Approach 2:
Different regions of the pump filter have different filtering characteristics. The first filter part and second filter part are positioned at different locations and have different pore sizes, creating local quality variations. The blocking wall is strategically positioned to control flow distribution, ensuring that each region performs its specific filtering function optimally while preventing foreign substance accumulation.
2Reliability
If a fixed pump filter is installed, then filtering performance is maintained, but position adjustment and maintenance become difficult
Solution Approach 1:
The pump filter is designed with a rotatable head that can be rotated to different angular positions while maintaining its filtering function. The blocking wall and filter parts work together to ensure that regardless of the rotation angle, the filter maintains effective performance. This dynamic capability allows easy position adjustment for maintenance and cleaning without compromising filtering reliability.
3Ease of manufacture
If a single pore size filter is used, then manufacturing is simple, but filtering effectiveness for various sized foreign substances is reduced
Solution Approach 1:
The filter is segmented into multiple filter parts, each with different pore sizes. The first filter part has a first pore size optimized for larger foreign substances, while the second filter part has a second pore size for smaller foreign substances. This segmentation maintains manufacturing simplicity by using standard filtering structures while significantly improving filtering effectiveness across different particle sizes.
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 substances of varying sizes, reduces accumulation, and facilitates easy adjustment and maintenance, enhancing the washing machine's performance by ensuring clear wash water circulation and drainage.
Implementation Method 1
The pump filter includes a first filter part with a first pore size and a second filter part with a second pore size, thereby effectively filtering out foreign substances from the wash water
Implementation Method 2
The second filter part includes an opening to effectively drain the wash water
Data Source
AI summary
A washing machine includes a tub, a pump case including an inflow chamber into which wash water in the tub flows, a circulation pump chamber provided at one side of the inflow chamber to supply wash water to the tub, and a drain pump chamber provided at the other side of the inflow chamber to discharge the wash water to the outside, and a pump filter installed in the inflow chamber to filter out foreign substances from the wash water. The pump filter includes a first filter part passing wash water flowing into the circulation pump chamber and a second filter part passing wash water flowing into the drain pump chamber. The pump filter further includes a direction adjustment groove formed to adjust positions of the first filter part and the second filter part within the inflow chamber.