Washing Machine Door Rinse During Spin-Drying for Bubble Removal
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Solution Overview
Problem
Washing machines often leave residual bubbles on the door glass after rinsing, leading to user dissatisfaction and inconvenience due to the need for frequent cleaning, as existing solutions require structural changes or additional devices.
Innovation Solution
A method and system for a washing machine that supplies water to the door glass through a water supply valve or steam valve during spin-drying, or uses a circulation pump before drainage, to remove residual bubbles without altering the machine's structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional detergent is used during washing, then washing performance is improved, but residual bubbles remain on the door glass causing staining
Solution Approach 1:
The patent applies preliminary action by supplying water to the door glass before the washing cycle completes, specifically during spin-drying or before drainage. This pre-emptive water supply prevents bubbles from adhering to the door glass, eliminating the need for post-washing cleaning while maintaining effective washing performance with conventional detergents
2Object-affected harmful factors
If a door cleaning hose is added to remove bubbles, then bubble removal is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by making existing water supply components (water supply valve, steam valve, or circulation pump) perform a dual function: their original washing function plus the additional function of supplying water to the door glass to remove bubbles. This eliminates the need for a separate door cleaning hose or structural modifications while achieving effective bubble removal
3Object-affected harmful factors
If water is supplied to door glass during spin-drying, then bubble removal is improved, but energy consumption increases
Solution Approach 1:
The patent applies self-service by utilizing the drum's own rotation during spin-drying to distribute water across the door glass surface. The centrifugal force generated by the rotating drum automatically spreads the supplied water, eliminating the need for additional pumping energy or complex distribution mechanisms while effectively removing residual bubbles
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
Effectively removes residual bubbles from the door glass during spin-drying or after rinsing, enhancing user satisfaction by eliminating the need for frequent cleaning and structural modifications.
Implementation Method 1
supplying water to the door to remove residual bubbles from the door
Implementation Method 2
supplying water to the door glass through a circulation pump before drainage
Data Source
AI summary
Disclosed herein are a washing machine and a method of controlling the same that are capable of removing bubbles from a door after washing. The washing machine includes a drum and a door to open and close the drum. The method of controlling the washing machine includes determining whether the present operation is a spin-drying operation, and, when the present operation is the spin-drying operation, supplying water to the door to remove residual bubbles from the door.