Dishwasher Spray Nozzle Control for Movable Water Reflection
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Solution Overview
Problem
Dishwashers face challenges in ensuring that wash water properly reaches and is reflected by a reflecting module, leading to inefficiencies in dish washing due to uncontrollable spray angles, directions, and positions.
Innovation Solution
A dishwasher with a movable reflecting module and a control unit that adjusts spray pressure and nozzle length based on the module's position, using a BLDC motor and detection unit to ensure optimal wash water reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed spray nozzle is used, then the structure is simple, but the spray angle and direction cannot be adjusted to match the reflecting module position
Solution Approach 1:
The spray nozzle is designed to be movable rather than fixed, allowing it to adjust its position and spray angle dynamically according to the reflecting module's location. This dynamic configuration enables the nozzle to adapt to different operational conditions while maintaining a relatively simple overall structure.
2Reliability
If the reflecting module is made movable to adjust position, then wash water can reach the module effectively, but the system complexity increases
Solution Approach 1:
The movable reflecting module serves multiple functions: it adjusts its position to optimize wash water reflection, reflects water onto dishes at various angles, and can be controlled to work in coordination with the spray nozzle. This multi-functionality justifies the added complexity by providing versatile operational capabilities.
3Productivity
If spray pressure is increased to reach distant reflecting modules, then wash coverage improves, but water waste increases
Solution Approach 1:
The control unit receives position information from the detection unit about the reflecting module's location and adjusts the spray pressure accordingly. When the module is at an optimal position, normal pressure is used; when it moves to a distant position, pressure is increased only as needed to maintain effective coverage, thereby minimizing water waste while ensuring adequate wash coverage.
4Measurement precision
If the spray nozzle is made adjustable in length and angle, then precise control of wash water is achieved, but the nozzle structure becomes more complex
Solution Approach 1:
The spray nozzle incorporates adjustable length and angle capabilities through dynamic mechanisms that allow precise positioning. These adjustments are controlled based on the reflecting module's position data, enabling the nozzle to accurately target the module while maintaining a balanced structure that isn't excessively complex.
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 allows for precise control of wash water spray direction and strength, reducing water waste and improving washing efficiency by ensuring wash water is effectively reflected towards dishes, even at varying distances.
Implementation Method 1
A dishwasher is an apparatus that washes dishes by spraying wash water having high pressure onto dishes stored in a dish accommodation unit to remove foreign substances and the like remaining on the dishes using a water pressure of the sprayed wash water
Implementation Method 2
The rotary nozzle may rotate by the water pressure of the sprayed wash water while spraying the wash water
Implementation Method 3
A spray angle of the spray nozzle may be controllable by a reaction force of the sprayed wash water
Implementation Method 4
a reflecting module that is movable inside the wash tub and reflects the wash water sprayed by the spray nozzle
Data Source
AI summary
The present invention relates to a dishwasher and a method for controlling same, and the dishwasher may comprise a wash tub having an opening on at least one side thereof; a spray nozzle, provided in the interior of the wash tub, for spraying wash water; a reflecting module capable of moving in the interior of the wash tub, and reflecting the wash water sprayed by the spray nozzle; and a moving module, to which the reflecting module is detachably attached, for moving same in at least one direction.