Resonance Oscillation Washing Apparatus

Abstract

A washing apparatus relies on oscillation motion that are controlled by a computer and a singular or a plural number of vibrators to cause a spring-supported sealed container containing the washing object and its surrounding liquid to oscillate in resonance motion. The purpose of fast and efficient cleaning is achieved through relative movements, frictions and air bubbles among the washing objects, container wall and liquid together at the result of this resonant motion. A plural number of motion sensors provide input signals to the computer to calculate and monitor the system resonant frequency variation and drifting of the washing apparatus and to control the vibrators' drive frequency in real-time to maintain this resonant motion for washing apparatus throughout the washing cycle under different washed object types and load conditions.

What is claimed is: 
     
         1 . An oscillation washing apparatus, comprising of a sealed container to receive fluid and fabrics to be washed, a plural number of springs, a control computer, a single or plural number of vibrators, a plural number of motion sensors and a frame base to form a controllable oscillation system. 
     
     
         2 . The apparatus of  claim 1 , wherein a single or plural number of computer commanded vibrators are employed to incite said oscillation system into resonant oscillation at different frequencies in the washing operation of said apparatus. 
     
     
         3 . The apparatus of  claim 1 , wherein a plural number of sensors are employed to measure oscillation motion of said apparatus and provide measurement signal to said computer to determine resonant frequency of said oscillation system in the operation via digital signal processing. 
     
     
         4 . The apparatus of  claim 1 , wherein plural number of springs are employed to support said sealed container from the base to form oscillation system of said washing apparatus. 
     
     
         5 . A method of washing apparatus of  claim 1 , wherein a control computer is employed to form a closed-loop feedback control system with said sensors and vibrators in order to drive and maintain resonant oscillation of said washing apparatus in washing cycle. 
     
     
         6 . The method of  claim 5  wherein said vibrators are commanded by said computer to exert vibration excitation with predefined frequencies to said oscillation system of said washing apparatus at pre-wash cycle; wherein a plural number of said sensors are employed to measure oscillation system movement to determine system resonant frequency by said control computer through digital signal processing. 
     
     
         7 . The method of  claim 5  wherein said vibrators are commanded by said computer to incite said oscillation system into continuous resonant oscillation in washing cycle of said apparatus. 
     
     
         8 . The method of  claim 5  wherein said computer continues to sample sensor signals and to perform digital signal processing in real time to determine system resonant frequency variation and drifting during resonant oscillation of said apparatus in the washing cycle; and to use said measured resonant frequency variation as feedback to control vibrator excitation frequency in order to keep said oscillation system in resonant oscillation. 
     
     
         9 . The method of  claim 5  wherein said computer controls vibrator drive frequency away from the resonant frequency of said oscillation system to adjust the oscillation motion magnitude of said oscillation system for different washing modes of said washing apparatus.