Washing Machine Inner Barrel Bulge Structure for 3D Water Flow

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Solution Overview

Problem

Existing washing machine inner barrel designs with attached blocks suffer from severe frictional damage to clothes and limited three-dimensional water flow, resulting in inadequate washing effectiveness and user experience.

Innovation Solution

A thin wall attached block structure with bulge structures arranged along curved hyperbolic and sine curves, integrally injection-molded and symmetrically distributed, providing a larger surface area for improved water flow and reduced thickness to minimize wear, while ensuring seamless installation and anti-shrinkage features.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an attached block is added to the inner barrel to increase rolling strength of water flow, then washing cleanness is improved, but frictional damage to clothes becomes severe

Engineering Contradiction:

Improvewashing cleannessVSAvoidfrictional damage to clothes

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The attached block is segmented into multiple bulge structures (5-15 bulges) distributed along the surface, transforming a single large friction surface into multiple smaller interaction points. This segmentation reduces continuous frictional damage while maintaining water flow disruption effectiveness for washing cleanness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The attached block employs curved and rounded bulge structures instead of sharp edges or flat surfaces. The spherical/curved geometry of the bulges reduces frictional damage to clothes by distributing contact forces more evenly, while still effectively disrupting water flow to enhance washing cleanness.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Force

If a traditional attached block is used to increase rolling strength, then water flow interaction is enhanced, but three-dimensional water flow effect is limited

Engineering Contradiction:

Improverolling strength of water flowVSAvoidthree-dimensional water flow effect

Core Design Contradiction:

ForceVSAdaptability or versatility

Solution Approach 1:

The attached block extends in multiple spatial dimensions with bulges distributed across its surface area, creating three-dimensional water flow disruption. This multi-dimensional configuration enhances both rolling strength and creates complex flow patterns that improve water-clothes interaction from multiple directions.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

Different regions of the attached block have locally optimized bulge structures with varying sizes, shapes, and distributions. This local quality variation creates diverse flow interactions across the surface, enhancing three-dimensional water flow effects while maintaining overall rolling strength.

Inventive Principle:

Principle #3Local quality

3Ease of manufacture

If ribs are integrally formed in injection molding to increase cleanness, then manufacturing is simplified, but rolling strength of water flow remains relatively small

Engineering Contradiction:

Improveinjection molding processVSAvoidrolling strength of water flow

Core Design Contradiction:

Ease of manufactureVSForce

Solution Approach 1:

The injection molded ribs are designed with curved and rounded profiles rather than straight edges, optimizing water flow interaction. The curved geometry enhances rolling strength by creating more effective flow disruption, while remaining compatible with injection molding manufacturing processes.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The rib structures are designed with dynamic flow considerations, where the curvature and distribution of ribs optimize water flow patterns during rotation. This dynamic design approach maximizes rolling strength within the constraints of integral injection molding manufacturing.

Inventive Principle:

Principle #15Dynamics

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

Enhances washing cleanness by increasing rolling strength and creating a three-dimensional water flow effect, reducing wear on clothes and improving user experience through optimized surface interaction and flow direction manipulation.

Implementation Method 1

the bulge structures are arranged along curves... increasing rolling strength and creating a three-dimensional water flow effect

Methodology Applied

Scientific EffectFluid flow:

Data Source

PatentUS10060064B2Attached block structure for inner barrel of washing machine

Publication Date: 2018.08.28 HAIER GROUP CORP

AI summary

The present invention relates to an attached block structure for an inner barrel of a washing machine. The attached block structure is of a thin wall structure, which is installed on an inner wall of the inner barrel of the washing machine, a series of bulge structures (1) are arranged on one side of the thin wall structure facing interior of the inner barrel of the washing machine, and the bulge structures (1) are distributed along curves. The attached block structure for the inner barrel of the washing machine increases the rolling strength of washing water; and meanwhile, the bulge structures (1) additionally arranged on the attached block structure can not only realize a better rubbing and kneading effect on clothes, but also realize a certain three-dimensional water flow effect, thereby improving the washing cleanness, and having better user experience.