Dishwasher Overflow Cover with Filter Holes to Prevent Clogging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In dishwashers, overflow structures often clog due to pollutants like rice grains and food residues entering the overflow channel, making it difficult to detect and clean these blockages in a timely manner, as they can only be recognized when they rot and become smelly.
Innovation Solution
The base component includes an overflow cover with a water inlet plate featuring filter holes, which prevents pollutants from entering the overflow channel and allows for easy connection to the base, forming an overflow chamber that guides water flow while preventing clogging, and a water distribution system with inclined surfaces and pipelines that communicate with spray arms to enhance cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the overflow channel is open and direct, then water flow is smooth and fast, but pollutants easily enter and cause clogging
Solution Approach 1:
The patent introduces an overflow cover as an intermediary component between the overflow channel and the washing chamber. This cover acts as a mediator that allows water to pass through while blocking pollutants from entering the overflow channel, thus resolving the contradiction between maintaining fast water flow and preventing clogging.
Solution Approach 2:
The overflow system is segmented into multiple components: the overflow channel, the overflow cover with inlet surface, and the filter screen. This segmentation allows each component to perform its specific function - the channel guides water, the cover blocks pollutants, and the screen provides additional filtration, thereby maintaining flow speed while preventing clogging.
2Reliability
If the overflow cover is sealed, then pollutants are prevented from entering, but it becomes impossible to detect pollutants without removing the cover
Solution Approach 1:
The patent applies a light-transmitting or translucent material to the overflow cover, which allows visual detection of pollutants on the inlet surface without removing the cover. This transparency feature enables users to see accumulated pollutants through the cover material, maintaining the sealed structure while enabling easy detection.
Solution Approach 2:
The transparent overflow cover provides visual feedback about the accumulation of pollutants on the inlet surface. Users can observe the presence and amount of pollutants through the transparent material, which gives immediate feedback without requiring disassembly, thus solving the detection difficulty while maintaining the sealed structure.
3Difficulty of detecting and measuring
If the overflow cover is made transparent, then pollutant detection is easy, but manufacturing cost and complexity increase
Solution Approach 1:
The patent changes the optical parameter of the overflow cover material from opaque to light-transmitting or translucent. This parameter change enables pollutant detection through the cover without adding complex detection systems, achieving easy detection while maintaining simple structure and avoiding significant complexity increase.
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 clogging and allows for timely detection of pollutants, ensuring efficient water flow and easy maintenance by trapping residues and guiding water flow, thus maintaining the dishwasher's performance and hygiene.
Implementation Method 1
one side of the overflow cover, adjacent to the upper surface of base, is provided with a water inlet plate communicating with the overflow port, and the water inlet plate is arranged with a plurality of filter holes
Data Source
AI summary
A dishwasher water channel, which is integrated in a base of a dishwasher, is disclosed. The dishwasher water channel has a water distribution chamber, a flow guidance channel, and a spray arm. The flow guidance channel has one end communicating with the water distribution chamber and the other end communicating with the spray arm. The flow guidance channel extends from an outer wall of the water distribution chamber toward a rear end of the base and communicates with the spray arm at the rear end of the base. A spray arm seat is provided between the spray arm and the flow guidance channel and penetrates the base. The spray arm is connected to a top of the spray arm seat and located above the base to spray water out of the spray arm seat, and the flow guidance channel is connected to a bottom of the spray arm seat and located below the base.