Multi-drum washing machine draining-discharging control method
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Solution Overview
Problem
Multi-drum washing machines face challenges in drainage-dehydration control, leading to inefficient use of energy, potential water overflow, and reduced cleanliness due to simultaneous high-power procedures and drainage processes, which affect machine stability and laundry quality.
Innovation Solution
Implementing a control method where the first washing drum continues with washing or rinsing until the second drum completes its drainage and dehydration, then initiates its own drainage and dehydration procedures, ensuring sequential execution to avoid simultaneous high-power usage and water overflow, and allowing for continuous drainage-dehydration processes to minimize contact time with washing water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If two washing drums execute drainage procedures simultaneously, then drainage efficiency is improved, but water flow in the drainage pipe becomes too large causing water overflow and backward flow
Solution Approach 1:
The patent implements periodic action by controlling the first washing drum to execute drainage procedure only after the second washing drum completes its drainage procedure. This sequential periodic drainage prevents simultaneous water discharge, avoiding excessive flow in the shared drainage pipe that would cause water overflow and backward flow, while still maintaining overall drainage efficiency through optimized timing.
2Productivity
If two washing drums execute dehydration procedures simultaneously, then dehydration efficiency is improved, but instantaneous power becomes too large affecting machine stability
Solution Approach 1:
The patent applies periodic action by controlling the first washing drum to execute dehydration procedure only after the second washing drum completes its dehydration procedure. This sequential timing prevents simultaneous high-power consumption, reducing instantaneous power demand to levels that maintain machine stability and prevent overheating, while still achieving effective dehydration for both loads.
Solution Approach 2:
The patent implements preliminary action by having the first washing drum wait for the second washing drum to complete its dehydration procedure before initiating its own dehydration. This preliminary timing arrangement ensures that the washing drum continues washing or rinsing procedures during the waiting period, and only starts dehydration when power demand is low, preventing simultaneous high-power execution.
3Loss of energy
If one washing drum waits for the other to complete drainage and dehydration, then energy consumption is reduced, but washing time increases
Solution Approach 1:
The patent applies continuity of useful action by ensuring that when the first washing drum waits for the second washing drum to complete drainage and dehydration, the first washing drum does not remain idle but continues executing washing or rinsing procedures. This continuous useful action minimizes the effective loss of time, as the waiting period is utilized for other beneficial washing operations rather than idle waiting.
Data Source
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AI summary
A drainage-dehydration control method of a multi-drum washing machine, the washing machine at least comprising a first washing drum (1) and a second washing drum (2); the method comprising: before the first washing drum (1) executing drainage or dehydration procedure, judging whether the second washing drum (2) is draining or dehydrating. If yes, the first washing drum (1) continuing executing a washing procedure or a rinse procedure, or suspending executing the drainage or dehydration procedure until the second washing drum (2) finishes dehydration; if no, the first washing drum (1) starting drainage and dehydration. By the above method, the first washing drum (1) and the second washing drum (2) cannot execute the drainage-dehydration procedure at the same time; and during the waiting process of one washing drum, another washing drum continues a washing procedure or a rinse procedure, so as to make the rational use of waiting time and improve the efficiency of washing clothing. At the same time, the drainage-dehydration control method of the present disclosure is simple, reliable and significantly effective.