Water-Pressure Filter and Damper Layout for Washing Machine Balance

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Solution Overview

Problem

Existing washing machines face inefficiencies in energy consumption and maintenance due to the use of pulsators for water lifting, and they lack effective vibration attenuation and balance adjustment mechanisms.

Innovation Solution

The washing machine incorporates a filter device using water pressure to remove foreign substances and a support system that adjusts balance using water pressure, along with an auxiliary damper to attenuate vibrations, eliminating the need for additional power and reducing maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If a pulsator is used to lift wash water, then washing function is achieved, but energy consumption increases due to fluid resistance

Engineering Contradiction:
Improveenergy consumptionVSAvoidwashing capacity
Core Design Contradiction:
Use of energy by moving objectVSProductivity

Solution Approach 1:

The patent extracts the pulsator blades from the system and replaces them with a filter device that utilizes water pressure directly. The filter device includes a filter element positioned in the water flow path, allowing water to pass through while capturing foreign substances, thereby eliminating the energy-consuming pulsator mechanism while maintaining washing functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention employs hydraulic principles by utilizing the kinetic energy and pressure of the incoming water stream directly to drive the washing process. The filter device is designed to capture foreign substances through the natural flow of water, converting the water's hydraulic energy into filtering action without requiring additional mechanical components like pulsators.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Reliability

If a filter device is installed to remove foreign substances, then washing quality improves, but maintenance complexity increases due to filter cleaning requirements

Engineering Contradiction:
Improvewashing qualityVSAvoidfilter maintenance
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The filter device is designed with a self-cleaning mechanism where water pressure automatically flushes accumulated foreign substances from the filter element. The structure includes a bypass channel that allows high-pressure water to flow through and clean the filter during operation, eliminating the need for manual intervention and reducing maintenance complexity while sustaining high washing quality.

Inventive Principle:
Principle #25Self-service

3Stability of the object's composition

If a support device is added to adjust balance, then stability improves, but device complexity increases

Engineering Contradiction:
Improvebalance stabilityVSAvoidsupport structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The support device integrates multiple functions into a single component: it provides mechanical support for the washing machine, enables balance adjustment through water pressure actuation, and serves as part of the overall structural framework. This multi-functionality reduces the need for separate adjustment mechanisms and simplifies the overall device complexity while maintaining stability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Stability of the object's composition

If a vibration device is attached to attenuate rotary tub vibration, then operational stability improves, but device complexity and installation difficulty increase

Engineering Contradiction:
Improvevibration attenuationVSAvoiddamping structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The vibration attenuation function is merged with the existing support structure and casing of the washing machine. The support device and casing are designed to work together as an integrated damping system, where the support structure provides both mechanical support and vibration isolation, eliminating the need for separate vibration damping components and reducing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

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 reduces energy consumption, simplifies maintenance by eliminating the need for separate filter cleaning, and effectively attenuates vibrations, ensuring stable operation and improved balance.

Implementation Method 1

a filter device to eliminate foreign substances from wash water by means of using pressure of water supplied thereto

Methodology Applied
Scientific EffectWater pressure: Pressure Increase

Implementation Method 2

the moving device may move in the inner portion of the filter device by pressure of wash water supplied through the connection tube and pressure of wash water filling the reservoir

Methodology Applied
Scientific EffectFluid pressure: Pressure Increase

Implementation Method 3

The moving device may include an elastic portion which is compressible or expandable

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 4

a support located at a bottom of the casing so as to balance the casing using pressure of wash water supplied through the water supply tube

Methodology Applied
Scientific EffectWater pressure: Pressure Increase

Implementation Method 5

an auxiliary damper located between the support rod and the reservoir, so as to attenuate oscillation of the reservoir using pressure of wash water supplied through the water supply tube

Methodology Applied
Scientific EffectWater pressure damping: Damping

Data Source

PatentUS10023991B2Washing machine
Publication Date: 2018.07.17 SAMSUNG ELECTRONICS CO LTD
  • US10023991B2 patent drawing
  • US10023991B2 patent drawing
  • US10023991B2 patent drawing

AI summary

A washing machine including a filter device, a support, or an auxiliary damper, using pressure of water supplied thereto. The washing machine includes a casing, a reservoir installed inside the casing, a water supply tube connected to an upper portion of the reservoir such that wash water is supplied through the water supply tube, a drainage tube connected to a lower portion of the reservoir such that wash water is discharged through the drainage tube, and a filter device which allows wash water to be moved and eliminates foreign substances from the wash water at one side of the reservoir using pressure of the wash water supplied through the water supply tube. It may be possible to eliminate foreign substances from laundry using pressure of water supplied according to progress of operation of the washing machine without provision of additional power.