Drum Rotator Blade Spacing for Higher Washing Power and Lower Load
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Solution Overview
Problem
Existing laundry treating apparatuses face challenges in optimizing washing efficiency and reducing motor load, particularly when handling varying amounts of laundry, as the water flow resistance and driver load transfer are not effectively managed.
Innovation Solution
A rotator design within the drum featuring a bottom portion with a whale tail-shaped protrusion and a pillar with spaced-apart blades, forming differentiated water flows that enhance washing efficiency and reduce resistance and driver load regardless of laundry quantity, by strategically spacing the blade from the bottom portion in longitudinal and circumferential directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the blade is disposed close to the bottom portion to maximize water flow generation, then washing efficiency is improved, but water flow resistance increases and driver load increases
Solution Approach 1:
The blade is designed with non-uniform spacing relative to the bottom portion, creating different local flow characteristics. The spaced-apart configuration in specific regions reduces resistance while maintaining water flow generation in other areas, optimizing the balance between washing efficiency and energy consumption.
Solution Approach 2:
The rotator system dynamically adapts to varying laundry amounts through the blade's spaced configuration, which allows optimal water flow generation for different load conditions. This dynamic characteristic enables the system to maintain effective washing while reducing driver load across varying operational scenarios.
2Use of energy by moving object
If the blade is spaced apart from the bottom portion to reduce water flow resistance, then driver load is reduced, but washing efficiency decreases
Solution Approach 1:
The blade's spaced-apart configuration creates localized flow patterns that reduce resistance in specific regions while maintaining effective water flow generation in other areas. This selective spacing optimizes the balance between reducing driver load and maintaining washing efficiency.
Solution Approach 2:
The system dynamically adapts to varying laundry amounts through the blade's spaced configuration, which allows optimal performance across different load conditions. The spaced design enables the system to maintain effective washing while reducing driver load adaptively.
3Quantity of substance
If the rotator is designed to handle large amounts of laundry, then capacity is improved, but water flow resistance and driver load increase
Solution Approach 1:
The rotator system dynamically adapts to varying laundry amounts through the blade's spaced configuration, which allows optimal water flow generation for different load conditions. This dynamic characteristic enables the system to maintain effective washing while reducing driver load across varying operational scenarios.
Solution Approach 2:
The spaced-apart blade configuration changes the water flow parameters, reducing resistance while maintaining effective washing. This parameter optimization allows the system to handle varying laundry quantities efficiently without proportionally increasing driver load.
4Productivity
If the rotator rotates at high speed to improve washing efficiency, then washing power increases, but driver load and energy consumption increase
Solution Approach 1:
The blade is designed with non-uniform spacing relative to the bottom portion, creating different local flow characteristics. The spaced-apart configuration in specific regions reduces resistance while maintaining water flow generation in other areas, optimizing the balance between washing efficiency and energy consumption.
Solution Approach 2:
The rotator system dynamically adapts to varying laundry amounts through the blade's spaced configuration, which allows optimal water flow generation for different load conditions. This dynamic characteristic enables the system to maintain effective washing while reducing driver load across varying operational scenarios.
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 design improves washing efficiency and reduces driver load by minimizing water flow resistance and load transfer, effectively handling both small and large laundry loads with increased washing power and reduced motor load.
Implementation Method 1
a protrusion portion of the bottom portion may be constructed to have a shape of a whale tail and reduce resistance to water when rotating
Implementation Method 2
The rotator may be rotated inside the drum to form a water flow
Data Source
AI summary
Disclosed is a laundry treating apparatus having a rotator. The rotator includes a bottom portion positioned on a bottom surface of a drum, a pillar protruding from the bottom portion toward an open surface of the drum, and a blade protruding from an outer circumferential surface of the pillar, wherein the blade extends from one end thereof facing toward the bottom surface to the other end thereof facing toward the open surface, and the blade is disposed such that said one end thereof is spaced apart from the bottom portion. As such, a washing power may be increased regardless of an amount of laundry, and a torque load of a driver may be reduced.