Dish washing machine
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Solution Overview
Problem
Dish washing machines with rotating nozzle structures often leave areas uncovered by the washing water, and linear type injection structures face challenges in maintaining efficiency while accommodating various dish sizes due to vane height requirements, which reduces the loading capacity.
Innovation Solution
A dish washing machine with a linear type injection unit featuring a vane unit and a flow channel switching device, allowing for adjustable nozzle hit distance and height, enabling efficient water distribution and increased loading volume by reducing vane height and incorporating a motor-driven deflection unit for precise water injection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a rotating nozzle structure is used to inject washing water, then the injection structure is simple, but areas uncovered by washing water occur reducing washing efficiency
Solution Approach 1:
The patent applies the dynamics principle by making the deflection plate movable instead of fixed. The deflection plate reciprocates along the rail to dynamically change the water injection coverage area, ensuring all regions including corners are covered while maintaining a relatively simple injection structure.
2Productivity
If a linear type injection structure with high vane is used to cover all areas, then washing efficiency improves, but the internal volume is reduced lowering the maximum size of loadable plates
Solution Approach 1:
The deflection plate moves reciprocally along a rail to dynamically adjust water coverage. This allows the plate to be lower in height (preserving loading volume) while still achieving complete area coverage through its movement, resolving the contradiction between washing efficiency and loading capacity.
Solution Approach 2:
The patent introduces movement along the rail (adding a temporal/dynamic dimension) to achieve complete area coverage. Instead of relying on increased plate height, the solution uses the deflection plate's movement along the longitudinal axis to expand water coverage, thereby preserving vertical loading space.
3Reliability
If the vane height is increased to ensure water stream hits the vane, then washing coverage improves, but the height reduces the internal volume
Solution Approach 1:
The deflection plate is designed to move reciprocally along a rail rather than being stationary at high height. This dynamic movement ensures reliable water stream interception and deflection throughout the washing area while maintaining a compact vertical profile that preserves internal volume.
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 covers all areas with washing water, increases the loading capacity by adjusting the injection unit's height, and enhances washing efficiency while reducing power consumption.
Implementation Method 1
a deflection unit to move inside the washing tub to deflect the washing water injected from the injection unit toward the dishes
Implementation Method 2
spraying high-pressure washing water to the dishes
Data Source
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AI summary
Provided is a dish washing machine having a structure improved to increase washing efficiency. The dish washing machine includes a washing tub for washing dishes, an injection unit configured to inject washing water into the washing tub, and a deflection unit configured to move inside the washing tub to deflect the washing water injected from the injection unit toward the dishes. The deflection unit includes a first vane configured to be linearly movable in a direction in which the washing water is injected and a second vane configured to interwork with the first vane.