Dual-Axis Laundry Drum and Tub Rotation for Multi-Directional Washing
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Solution Overview
Problem
Conventional laundry treating machines are limited in washing efficiency due to the formation of a single swirling flow around a fixed rotation axis, which restricts the improvement of washing effectiveness and requires a predetermined wash time.
Innovation Solution
A laundry treating machine design where the tub and drum rotate about different axes, generating multiple swirling flows in various directions, enhancing washing efficiency by employing a magnetic field-driven frame and drum system with separate shafts and water supply channels to create distinct rotational movements and water flow patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single rotation axis is used for the drum, then the structure is simple, but the washing efficiency is limited due to single-direction swirling flow
Solution Approach 1:
The rotation system is segmented into two independent axes: a horizontal rotation axis for the drum and a vertical rotation axis for the tub. This segmentation allows each axis to rotate in different directions, creating multi-directional swirling flows that enhance washing efficiency without requiring a single complex rotation mechanism
Solution Approach 2:
The invention adds a vertical rotation dimension by enabling the tub to rotate around a vertical axis while the drum rotates around a horizontal axis. This dimensional change creates three-dimensional water flow patterns and multiple swirling flows, transforming the traditional two-dimensional single-axis rotation into a three-dimensional multi-axis system that significantly improves washing performance
2Productivity
If a predetermined wash time is required to achieve satisfactory washing effect, then the washing quality is ensured, but the loss of time is increased
Solution Approach 1:
The dual-axis rotation system enables continuous and varied water circulation patterns throughout the washing process. Both the drum and tub rotate simultaneously in different directions, creating persistent multi-directional swirling flows that continuously act on the laundry, ensuring effective washing action is maintained throughout the entire wash cycle without idle periods
Solution Approach 2:
The independent rotation of the drum and tub creates periodic variations in water flow patterns and swirling directions. This periodic action ensures that laundry items are repeatedly exposed to washing forces from multiple angles, enhancing the cumulative washing effect and improving overall washing speed within reduced time periods
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 machine achieves improved washing efficiency by forming unique swirling flows that rotate around different axes, enhancing the washing effect beyond conventional machines, allowing for more efficient cleaning and potentially reducing wash time.
Implementation Method 1
a frame stator fixedly mounted to a bottom portion of the cabinet and configured to generate a magnetic field, a frame rotor configured to be rotated by the magnetic field of the frame stator
Implementation Method 2
a drum stator fixedly mounted to the tub or the frame and configured to generate a magnetic field, and a drum rotor configured to be rotated by the magnetic field of the drum stator
Data Source
AI summary
A laundry treating machine is disclosed. The laundry treating machine includes a cabinet formed with a laundry introduction opening, a frame rotatably provided in the cabinet, a tub provided in the cabinet to define a space for accommodating wash water and configured to be rotated by the frame, and a drum rotatably provided in the tub to define a space for accommodating laundry and configured to rotate in a direction different from a rotating direction of the tub.