Dishwasher Vane and Fixed Nozzle Layout for Stronger Water Jets
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Solution Overview
Problem
Conventional dishwashers face challenges in enhancing washing efficiency due to issues with water straightness and pressure, which affect the effectiveness of washing dishes, especially in separate washing modes.
Innovation Solution
The dishwasher incorporates a fixed nozzle assembly with multiple nozzles and a movable vane within the washing tub, featuring reflection sections inclined at different angles to optimize water distribution and pressure, ensuring that washing water is effectively sprayed and reflected onto dishes, and an additional vane for separate washing modes to prevent interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single spray nozzle is used to spray washing water, then the device complexity is low, but the washing efficiency and water pressure consistency deteriorate
Solution Approach 1:
The spray nozzle is divided into multiple independent nozzle units (first nozzle unit, second nozzle unit, third nozzle unit) arranged at different positions and orientations. Each nozzle unit sprays water in a specific direction to cover different areas of the washing tub, achieving comprehensive washing coverage while maintaining manageable structural complexity
Solution Approach 2:
The multiple nozzle units are arranged in three-dimensional space with different spatial orientations (front, rear, left, right sides of the tub). This spatial distribution allows water to be sprayed from multiple directions simultaneously, enhancing washing efficiency without requiring a single complex nozzle
2Productivity
If the spray direction is not optimized, then the device structure is simple, but the water straightness and washing intensity deteriorate
Solution Approach 1:
Each nozzle unit is positioned and oriented to spray water toward a specific local area of the washing tub. The first nozzle unit sprays toward the front, the second toward the rear, and the third toward the sides, creating localized high-intensity washing zones that collectively cover the entire tub space
Solution Approach 2:
The nozzle units are configured to spray water in coordinated directions that dynamically cover different areas of the washing tub. The arrangement allows water jets to intersect and converge on dishes from multiple angles, enhancing washing intensity through dynamic water interaction
3Adaptability or versatility
If multiple nozzles are added to improve separate washing capability, then the washing capability during separate washing improves, but the device complexity increases
Solution Approach 1:
The fixed nozzle assembly with multiple nozzle units serves multiple functions: it provides comprehensive washing coverage for full loads, enables effective separate washing of individual baskets, and maintains adequate water pressure for various washing modes. The same nozzle structure adapts to different washing scenarios without requiring additional components
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
This configuration improves the straightness of washing water by approximately 12% and increases washing intensity by 48%, reducing the time required for effective cleaning by 25% compared to traditional methods.
Implementation Method 1
a vane (400) movably installed inside the washing tub (30), and configured to reflect the washing water sprayed from the fixed nozzle assembly (320) toward the dishes
Data Source
AI summary
A dishwasher includes a main body, a washing tub provided inside the main body, and configured to wash dishes therein, a fixed nozzle assembly fixed to one side of the washing tub, and configured to spray washing water; and a vane installed inside the washing tub in such a way to be movable along a first direction, and configured to reflect washing water sprayed from the fixed nozzle assembly toward the dishes.