Movable Dishwasher Deflection Unit for Corner Wash Coverage
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Solution Overview
Problem
Conventional dish washing machines often have dead zones in the washing tub where water does not reach, leading to inefficient washing and increased noise due to the placement and structure of liquid ejection units, which can result in incomplete cleaning and complex designs.
Innovation Solution
A dish washing machine with a liquid ejection unit and a deflection unit that moves within the tub to direct water towards the dish basket, using a concave surface and grooves to deflect water efficiently and ensure all areas are washed, eliminating dead zones and allowing for intensive washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If liquid ejection units are positioned at the upper side of the upper dish basket and upper/lower sides of the lower dish basket, then water coverage is improved, but dead zones remain at the corners of the washing tub
Solution Approach 1:
The liquid ejection unit is made rotatable about a vertical axis, allowing it to dynamically change its ejection direction and cover different areas of the washing tub, including corner dead zones, thereby improving washing completeness while maintaining adequate water coverage
2Reliability
If a liquid ejection unit with variable length or rotatable structure is used to eliminate dead zones, then washing completeness is improved, but the structure becomes more complex
Solution Approach 1:
The liquid ejection unit incorporates a rotatable mechanism that allows it to sweep through different angular positions, enabling a single unit to cover the entire washing tub area including corners, thereby achieving washing completeness without requiring multiple complex ejection units
Solution Approach 2:
The rotatable liquid ejection unit serves multiple functions: it can eject water at different angles to cover various areas of the washing tub, replace multiple fixed ejection units, and eliminate dead zones, thereby simplifying the overall system while maintaining washing completeness
3Area of stationary object
If the liquid ejection unit direction is changed to reach dead zones, then water coverage is improved, but noise increases when water is directed perpendicular to the washing tub wall
Solution Approach 1:
The liquid ejection unit rotates to optimize its ejection angle dynamically, allowing it to reach dead zones while maintaining an ejection direction that minimizes noise by avoiding perpendicular impact with the washing tub wall
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 solution effectively eliminates dead zones, ensuring thorough washing and reducing noise by directing water perpendicular to the dish basket, enhancing cleaning efficiency and simplifying the machine's structure.
Implementation Method 1
a deflection unit arranged facing the liquid ejection unit to deflect the water ejected from the liquid ejection unit
Data Source
AI summary
A dish washing machine including a cabinet forming an external appearance of the dish washing machine; a washing tub arranged in the cabinet and allowing dishes to be washed therein; a dish basket arranged in the washing tub to accommodate the dishes; at least one liquid ejection unit arranged in the washing tub, the at least one liquid ejection unit to eject water; a deflection unit arranged facing the liquid ejection unit to deflect the water ejected from the liquid ejection unit toward the dish basket; and a drive unit to drive the deflection unit to be moved within the washing tub.