Dishwasher Filter Housing With Self-Cleaning Wiper
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Solution Overview
Problem
Automatic dishwashers face handling challenges due to filter clogging in the fluidic connection between the washing and storage containers, leading to reduced efficiency and user annoyance from manual cleaning requirements.
Innovation Solution
A self-cleaning filter system with a wiper mechanism inside the filter housing, where the wiper moves along the filter fabric to remove retained particles and impurities, which are then backwashed into the washing chamber, preventing clogging and eliminating the need for manual cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter is inserted into the fluidic connection between the washing container and the storage container, then the quality of rinsing liquor is improved, but the filter becomes clogged requiring manual cleaning
Solution Approach 1:
The filter system performs self-cleaning through a wiper mechanism that automatically removes retained particles from the filter fabric during the washing program, eliminating the need for manual user intervention to maintain filter functionality
Solution Approach 2:
The wiper mechanism proactively removes particles from the filter fabric before they can cause clogging, performing cleaning action in advance during the washing program rather than waiting for manual intervention
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 self-cleaning filter ensures continuous functionality by preventing filter clogging, maintaining the quality of rinsing liquor, and simplifying user handling by automating the cleaning process, thus reducing contamination and unpleasant odors.
Implementation Method 1
A wiper that interacts with the filter fabric is arranged inside the filter housing. This is displaceably guided in the filter housing so that in the event of a normal displacement movement it moves along the filter fabric and thereby wipes off particles, impurities, dirt and/or the like
Implementation Method 2
In a backwash, these particles, impurities, dirt and/or the like, which are removed from the filter fabric by the scraper, can be transported back into the washing chamber, from where they can be disposed of by pumping out
Data Source
Figure 1
Figure 2
Figure 3a~4
AI summary
The invention relates to an automatic dishwasher with a wash chamber (3) providing a wash chamber (4), which has a loading opening (8) that can be closed by means of a pivotably mounted wash chamber door (9), and with a reservoir (10) for the temporary storage of wash liquid, which is fluidically connected to the wash chamber (3), as well as with a filter (17) inserted into the fluidic connection between the wash chamber (3) and the reservoir (10). In order to propose an automatic dishwasher of the type mentioned above that enables overall simplified handling, the invention proposes an automatic dishwasher of the type mentioned above, which is characterized by a filter (17) comprising a filter housing (21), a filter fabric (22) arranged therein, and a scraper (29) cooperating with the filter fabric (22), wherein the scraper (29) is slidably guided in the filter housing (21).