Dishwasher Spray Conversion Assembly to Extend Range and Reduce Noise
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Solution Overview
Problem
Conventional dishwashers face inefficiencies in spraying wash water due to blind areas created by the rectangular shape of the washing tub, leading to incomplete washing and increased noise when the spray unit is adjusted to reach these areas, and a complex flow path when the spray unit is fixed.
Innovation Solution
A dishwasher with a conversion assembly that includes a rotatable vane and guide rail system, allowing the spray direction to be adjusted to extend the spraying range and prevent blind areas, while minimizing noise by controlling the angle of the vane's direction converting surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the spray unit is extended or rotated to reach blind areas, then the spraying range is improved, but the structure becomes more complex and scattered washing effects occur
Solution Approach 1:
The patent introduces a conversion assembly with a vane that redirects water flow from the spray unit at an angle, adding a dimensional aspect to the spraying pattern. This allows the spray to reach blind areas without extending the spray unit itself, maintaining structural simplicity while expanding coverage area.
Solution Approach 2:
The conversion assembly acts as an intermediary between the spray unit and the tableware, redirecting water flow to reach blind areas. This mediator component enables extended spraying range without requiring the spray unit itself to be complex or extended.
2Area of stationary object
If the spray unit is positioned perpendicular to the wall surface to reach blind areas, then the spraying range is improved, but noise increases due to water spray facing the wall surface
Solution Approach 1:
The conversion assembly is positioned at a specific location and angle to redirect water flow locally toward blind areas without directing spray perpendicular to wall surfaces. This localized redirection maintains washing effectiveness while avoiding the noise problem associated with wall-facing spray.
3Device complexity
If the spray unit is fixed at the tableware basket, then the structure is simplified, but the flow path becomes less efficient
Solution Approach 1:
The conversion assembly serves as an intermediary component that improves water flow efficiency without requiring the spray unit to be movable. This mediator structure optimizes the flow path by redirecting water at appropriate angles, maintaining washing efficiency while keeping the overall structure simple.
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 enhances washing efficiency by ensuring all areas of the tub are reached, reduces noise from water spray, and simplifies the flow path, thereby improving overall washing performance.
Implementation Method 1
The conversion assembly may be provided as to convert the direction of the wash water being sprayed from the spray unit toward the tableware basket
Data Source
AI summary
A dishwasher having a spray unit fixed at a washing tub and configured to spray wash water, and a conversion assembly provided as to convert the direction of the wash water being sprayed from the spray unit toward a tableware basket. The conversion assembly includes a vane rotatably provided while disposed as to face with respect to the spray unit such that the direction of the converted wash water is adjusted. Through the structure as such, the spraying range of the wash water is extended, and may be able to minimize noise from the striking of the wash water against an inside wall or door of the dishwasher.