Dishwasher Air Jet Cap Structure for Leak and Dirt Isolation
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Solution Overview
Problem
Dishwashers with air jet generators face issues of dirt contamination, noise, and vibration due to the insertion of dirt between the bubble generating apparatus and the tub, as well as leakage and increased noise from the coupling portion between the air jet generator and the tub.
Innovation Solution
A dishwasher design that includes an air jet generator mounted in the tub with a cap covering the exposed portion, a fastening member, and seals to prevent dirt insertion, noise reduction, and water leakage, while maintaining cleanliness and reducing vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an air jet generator is mounted in the tub to generate air bubbles in washing water, then washing performance is improved, but dirt can be inserted between the air jet generator and the tub causing contamination
Solution Approach 1:
A cap is introduced as an intermediary component between the air jet generator and the tub. The cap covers the exposed portion of the air jet generator, creating a barrier that prevents dirt from being inserted into the gap while still allowing the air jet generator to function properly and generate air bubbles in the washing water.
2Productivity
If an air jet generator is mounted in the tub to generate air bubbles in washing water, then washing performance is improved, but noise and vibration are increased
Solution Approach 1:
The cap serves as a noise and vibration isolation intermediary. By covering the exposed portion of the air jet generator, the cap reduces the transmission of noise and vibration from the air jet generator to the tub and surrounding environment, while still permitting the air bubble generation function to operate effectively.
3Ease of operation
If a coupling portion is provided between the air jet generator and the tub for mounting, then installation is enabled, but washing water can leak into the gap causing contamination
Solution Approach 1:
The cap acts as a sealing intermediary that covers the coupling portion between the air jet generator and the tub. This prevents washing water from leaking into the gap through the coupling portion, thereby preventing contamination while maintaining the installation functionality of the coupling mechanism.
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 restricts dirt entry, reduces noise and vibration, and prevents water leakage, enhancing the cleanliness and operational efficiency of the dishwasher.
Implementation Method 1
a bubble generating plate disposed in the bubble generating chamber and generating microbubbles by mixing water and air
Implementation Method 2
a cap covering at least a portion of the air jet generator exposed to the interior of the tub
Implementation Method 3
A seal may be disposed between the cap and the bottom surface of the tub
Data Source
AI summary
A dishwasher includes a tub in which tableware is stored; a washing nozzle which is installed in the tub and sprays washing water; a washing pump which pumps the washing water to the washing nozzle; a sump in which the washing water is stored; and an air jet generator which is mounted in the tub, and supplies air to the washing water to contain an air bubble; wherein the air jet generator comprises: an air jet nozzle which sprays the washing water containing the air bubble into the tub; a discharge port which discharges the washing water containing the air bubble to the air jet nozzle; and a cap which surrounds at least a portion of the discharge port exposed in the tub.