Balancing apparatus of a washing machine

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Solution Overview

Problem

Existing washing machines experience vibrations and loud operation due to unbalanced drum design or improper laundry distribution, leading to reduced lifespan and user discomfort, with prior solutions increasing structural complexity.

Innovation Solution

A balancing apparatus using magnetically polarizable propellers and half rings, with a sensor and ball to ensure similar polarity alignment, effectively balances the drum through magnetic forces, preventing vibrations and loud noise with a simple configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If balancers and imbalance-compensating devices are provided to prevent vibrations, then vibration prevention is improved, but device complexity increases

Engineering Contradiction:
Improvevibration preventionVSAvoidstructural complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent replaces mechanical balancers and imbalance-compensating devices with an electromagnetic balancing system. Electromagnets are used to generate magnetic fields that interact with magnetic bodies attached to the drum, creating balancing forces without mechanical contact. This substitution of mechanical systems with electromagnetic fields reduces structural complexity while maintaining vibration prevention effectiveness.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the physical state and parameters of the balancing mechanism by using controllable electromagnetic fields instead of fixed mechanical structures. The strength and polarity of magnetic fields can be dynamically adjusted to compensate for varying imbalance conditions, providing a more adaptable and less complex system compared to traditional mechanical balancers.

Inventive Principle:
Principle #35Parameter changes

2Force

If magnetic compensating elements with high holding force are used, then balancing effectiveness is improved, but release mechanism complexity increases

Engineering Contradiction:
Improvemagnetic holding forceVSAvoidrelease mechanism complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The patent replaces mechanical release mechanisms with electromagnetic control. The magnetic holding force is maintained during operation, and release is achieved by simply deactivating or reversing the electromagnetic field, eliminating the need for complex mechanical release components while maintaining high holding force requirements.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 balances the washing machine drum using magnetic properties, preventing vibrations and noise while maintaining a straightforward implementation, thus enhancing user comfort and extending machine lifespan.

Implementation Method 1

The propellers and the half rings are magnetically polarized while electric current is passing through the propellers and half rings

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

The drum is balanced by forming similar polarity in poles of the half rings and the poles of the propellers facing each other

Methodology Applied
Scientific EffectMagnetic repulsion: Magnetism

Data Source

PatentUS10920358B2Balancing apparatus of a washing machine
Publication Date: 2021.02.16 VESTEL ELEKTRONIK SANAYI & TICARET ANONIM SIRKETI
  • US10920358B2 patent drawing

AI summary

The present invention refers to a balancing apparatus 100 for preventing vibrations and loud running in a drum 1 of a washing machine while operating. The balancing apparatus 100 according to the present invention preferably comprises of at least two half rings 2 and a plurality of propellers 3. The plurality of propellers are attached to the drum 1. The two half rings 2 are configured to cover the drum 1. The propellers 3 and the half rings 2 are magnetically polarized while electric current is passing through the propellers 3 and half rings 2. The drum 1 is balanced by forming similar polarity in poles of the half rings 2 and the poles of the propellers 3 facing each other.