Washing machine
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Solution Overview
Problem
Washing machines experience abnormal vibration and damage during spin-dry of laundry made from waterproof materials due to unbalanced water distribution, which can cause wash water to deviate to one side, leading to friction and damage between the rotating tub and water tub.
Innovation Solution
The implementation of a washing machine design featuring a rotating tub with a deviation preventer, such as ribs or a balancer, at its upper end to maintain equilibrium and prevent wash water from deviating to one side, combined with a separation preventer to prevent laundry from being separated and damaged during washing of large items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a washing machine washes laundry formed of waterproof material, then washing capability is improved, but wash water accumulates in the rotating tub and causes abnormal vibration during spin-dry
Solution Approach 1:
The inner tub is divided into multiple compartments by partition walls. Each compartment can independently contain and drain water, preventing water accumulation and imbalance during spin-dry of waterproof laundry. The segmentation allows water to be distributed across multiple smaller spaces rather than concentrating in one location.
Solution Approach 2:
Partition walls act as intermediary structures between different water zones. These walls with drainage holes control water flow between compartments, mediating the water distribution to maintain balance while still allowing drainage. The intermediary structure prevents direct water accumulation that would cause vibration.
2Productivity
If the rotating tub rotates at high speed during spin-dry, then drying efficiency is improved, but wash water deviates to one side causing the rotating tub to collide with the water tub
Solution Approach 1:
Multiple compartments created by partition walls prevent water from deviating to one side during high-speed rotation. Each compartment constrains water locally, and the distributed drainage holes ensure water can exit gradually, maintaining equilibrium even at high rotation speeds for improved drying efficiency.
Solution Approach 2:
Different regions of the inner tub have different functions created by the partition walls. Some areas contain water while others allow drainage, creating local quality variations that manage water distribution. This local differentiation prevents water deviation during high-speed spin-dry.
3Adaptability or versatility
If large laundries such as blankets and bed sheets are washed, then washing versatility is improved, but some laundries separate from the rotating tub and get damaged by friction
Solution Approach 1:
The partition walls create multiple compartments that can accommodate different types and sizes of laundry items. Large items like blankets and bed sheets can be distributed across compartments, preventing them from separating and rubbing against the outer tub. The segmented structure provides better containment for varied laundry loads.
4Stability of the object's composition
If a deviation preventer is added to the rotating tub, then water distribution balance is improved, but device complexity increases
Solution Approach 1:
The deviation preventer is merged with the inner tub structure itself rather than being a separate component. The partition walls are integrated into the tub design, combining the containment function with the water distribution balance function. This integration reduces overall device complexity while achieving the desired water balance effect.
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
This design effectively prevents abnormal vibration and damage by ensuring uniform water distribution and maintaining the laundry within the rotating tub, thereby extending the machine's lifespan and preventing laundry from being scraped against the water tub.
Implementation Method 1
the wash water that is not drained from the rotating tub is frequently deviated to one side in the rotating tub during high-speed spin dry
Implementation Method 2
maintain an equilibrium state without deviating to one side the wash water that is not drained during dry-spin
Implementation Method 3
when some of the separated laundries come in contact with the water tub, the laundry is scraped on a contact surface of the water tub and is damaged due to friction
Data Source
AI summary
A washing machine is provided. The washing machine includes a water tub configured to be disposed in a cabinet and to store wash water, a rotating tub configured to be rotatably installed in the water tub and to include an opening formed in an upper end portion thereof, and a driver configured to be connected to the rotating tub and to rotate the rotating tub, wherein a deviation preventer configured to prevent wash water in the rotating tub from being deviated to one side during rotation of the rotating tub is formed at an upper end portion of the rotating tub.