Dishwasher and base assembly

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Solution Overview

Problem

Conventional dishwasher overflow structures are prone to clogging and difficult to clean, as pollutants like rice grains and minced meat easily enter the overflow channel and adhere to the inlet surface of the overflow cover, making timely cleaning challenging.

Innovation Solution

A base component with an overflow cover featuring an overflow chamber and a water inlet plate equipped with filter holes, which prevents pollutants from entering the overflow channel and allows for easy visual inspection and removal of attached pollutants, thereby preventing clogging and odor issues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the overflow cover is not removed, then the structure remains intact and functional, but it is impossible to visually detect pollutants adhering to the inlet surface

Engineering Contradiction:
Improveoverflow channel functionalityVSAvoidpollutant detection
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent applies transparency principles by making the overflow cover body transparent or translucent, allowing visual detection of pollutants adhering to the inlet surface without removing the cover. This enables users to observe the inlet surface condition while maintaining the overflow cover's structural integrity and functionality.

Inventive Principle:
Principle #32Color changes

2Device complexity

If pollutants are allowed to enter the overflow channel directly, then the structure remains simple, but clogging occurs easily

Engineering Contradiction:
Improveoverflow structure simplicityVSAvoidoverflow channel畅通性
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent segments the overflow structure into distinct functional components: an overflow chamber, an inlet surface, and an overflow channel. The overflow chamber acts as a separation zone where pollutants are trapped before water enters the overflow channel, effectively dividing the flow path to prevent clogging while maintaining overall structural simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The overflow chamber serves as an intermediary structure between the inlet surface and the overflow channel. It mediates the water flow by allowing pollutants to be retained in the chamber while directing clean water through the overflow channel, thus preventing clogging without adding complex filtering mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If pollutants adhere to the inlet surface of the overflow cover, then the overflow function is maintained, but timely cleaning becomes difficult

Engineering Contradiction:
Improveoverflow functionVSAvoidcleaning convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

By making the overflow cover body transparent or translucent, the patent enables visual inspection of the inlet surface for adhered pollutants. Users can detect when cleaning is needed without disassembling the overflow cover, maintaining the overflow function while significantly improving cleaning convenience through timely detection.

Inventive Principle:
Principle #32Color changes

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 facilitates timely cleaning of the overflow channel by trapping pollutants and allowing for intuitive observation and removal of attached debris, enhancing the maintenance efficiency of the dishwasher.

Implementation Method 1

the water water inlet plate is arranged with a plurality of filter holes. Through the water water inlet plate, pollutants can be trapped to prevent the pollutants from directly entering the overflow channel

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP3673782B1Dishwasher and base assembly
Publication Date: 2023.11.01 FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING CO LTD
  • EP3673782B1 patent drawingFigure 1~5
  • EP3673782B1 patent drawingFigure 7~12
  • EP3673782B1 patent drawingFigure 13~18

AI summary

A dishwasher and a base component, the base component includes base (1) and overflow cover (2). The overflow cover (2) includes an overflow port (211) and an overflow water distribution cover body (21) of an mounting portion (2131), the overflow water distribution cover body (21) has an overflow chamber (212), and the base (1) has an overflow hole (112) and a connection portion (113) which is docked with the mounting portion (2131); Both the overflow port (211) and the overflow hole (112) communicate with the overflow chamber (212) and form an overflow channel (214); the water inlet plate (215) is provided on the overflow cover (2) adjacent to the upper surface (10) of the base (1) and communicates with the overflow port (211). The water inlet plate (215) is provided with a plurality of filter holes (2151). The base component has the functions of splashing prevention and stream guidance, and as the water inlet plate (215) is provided with a plurality of filter holes (2151), the water inlet plate (215) can trap pollutants and prevent direct entry of pollutants into the overflow channel (214) and avoid clogging of the overflow channel (214).