Dishwasher Spray Switching Assembly for Dead Zone Coverage
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Solution Overview
Problem
Conventional dish washing machines often create dead zones where washing water cannot reach, and the structures proposed to address this issue either fail to prevent these zones effectively or result in inefficient water distribution and increased noise and vibrations due to the reaction of water pressure.
Innovation Solution
A dish washing machine with a switching assembly that includes a damping unit to reduce vibrations and a redirection surface to change the direction of washing water, ensuring even distribution and preventing dead zones, while also using a guide rail for the switching unit's movement to enhance efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a switching unit is added to change water direction, then dead zones are prevented, but noise and vibrations increase
Solution Approach 1:
A damping unit is introduced as an intermediary component between the switching unit and the washing water flow. This damping unit absorbs the impact of water pressure changes and reduces vibrations, preventing noise and harmful vibrations while maintaining the switching unit's ability to redirect water and eliminate dead zones.
Solution Approach 2:
The patent converts the harmful effect of water pressure reaction forces into a beneficial damping effect. By positioning the damping unit to receive water flow after redirection, the water pressure that would otherwise cause vibrations is instead used to activate the damping mechanism, which then dissipates the energy to reduce noise and vibrations while maintaining effective water distribution.
2Reliability
If spray units are positioned to cover all areas, then dead zones are eliminated, but water distribution becomes inefficient
Solution Approach 1:
The switching unit is designed to be movable rather than fixed, allowing it to dynamically adjust its position and redirection angle. This dynamic capability enables the system to achieve comprehensive coverage of the washing tub by redirecting water to different areas at different times, eliminating dead zones while maintaining efficient water distribution through motion rather than static multi-position spraying.
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 prevents dead zones, improves washing efficiency, reduces noise and vibrations, and ensures a more uniform washing experience by evenly distributing washing water across the washing tub.
Implementation Method 1
a damping unit provided in the switching unit and configured to lessen a vibration of the switching unit
Data Source
AI summary
A dish washing machine is provided herein. The dish washing machine includes a switching assembly configured to change a direction of washing water sprayed by a spray unit. The switching assembly includes a switching unit configured to change the direction of the washing water. The switching assembly also includes a damping unit configured to lessen vibrations of the switching unit. Using this structure, the direction of the washing water is efficiently changed by the switching unit, and vibrations and noise are lessened.