Dishwasher Vane and Detection System for Targeted Water Spray Control
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Solution Overview
Problem
Conventional dishwashing machines lack the ability to accurately detect the location of tableware within the washing tub, leading to inefficient water spray distribution and reduced cleaning effectiveness.
Innovation Solution
A dishwashing machine equipped with a movable vane and detection system, including light or ultrasonic detectors, to generate position information of the tableware, allowing for precise control of the water spray direction and intensity based on the detected position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional dishwashing machines spray washing water without detecting tableware position, then the structure is simple and easy to manufacture, but water spray distribution is inefficient and cleaning effectiveness is reduced
Solution Approach 1:
The patent replaces complex mechanical detection systems with optical (light emitter/detector) or acoustic (ultrasonic emitter/detector) fields to detect tableware position. This substitution maintains high cleaning effectiveness while reducing mechanical complexity and improving system reliability.
Solution Approach 2:
The detection part automatically detects tableware position and the controller autonomously adjusts spray direction and vane movement based on detected positions, enabling the system to self-regulate without manual intervention, thereby improving productivity while managing complexity through automation.
2Productivity
If washing water is sprayed uniformly without targeting, then the spray system is simple, but water waste increases and cleaning efficiency decreases
Solution Approach 1:
The patent applies local quality by directing washing water specifically to locations where tableware is detected rather than uniform spraying. The controller adjusts spray direction and vane movement to concentrate water flow at detected tableware positions, improving cleaning efficiency while reducing water waste in areas without tableware.
Solution Approach 2:
The detection part continuously monitors tableware position and provides feedback to the controller, which dynamically adjusts spray direction and vane movement in real-time. This closed-loop feedback system ensures water is targeted accurately at tableware locations, maximizing cleaning efficiency and minimizing water waste.
3Adaptability or versatility
If the vane is fixed without movement capability, then the device structure is simpler, but the ability to target different tableware positions is limited
Solution Approach 1:
The patent implements dynamics by making the vane movable rather than fixed. The vane can change its position and angle under controller command to deflect washing water toward different tableware locations detected by the detection part, providing adaptability while managing complexity through controlled movement.
Solution Approach 2:
The movable vane serves multiple functions: it can position itself to target different tableware locations, adjust spray angles dynamically, and work in coordination with the detection and control systems. This multi-functionality enhances adaptability across various washing scenarios while sharing the movement mechanism across the entire washing tub coverage.
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 system ensures that washing water is intensively sprayed towards the tableware, enhancing cleaning efficiency and reducing water waste by accurately targeting the areas where the tableware is located.
Implementation Method 1
a light detector installed at the vane and configured to receive light irradiated from a light emitter or reflected by the tableware
Implementation Method 2
an ultrasonic detector installed at the vane and configured to detect an ultrasonic wave irradiated from an ultrasonic emitter or reflected by the tableware
Implementation Method 3
a reflector configured to reflect and deliver light or an ultrasonic wave to the detection part installed inside a washing tub
Data Source
AI summary
A dishwashing machine is provided to include at least one spray part spraying washing water, a vane provided to be movable and deflecting the sprayed washing water, a rack accommodating tableware to be washed by the washing water deflected by the vane, a detection part detecting the tableware accommodated in the rack, and a controller generating position information with respect to the tableware detected by the detection part and controlling an operation of at least one of the at least one spray part and the vane based on the generated position information.