Household dishwasher
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Solution Overview
Problem
Household dishwashers with spray-type high-pressure washing systems often leave dead zones between dishes unclean, requiring careful dish arrangement and additional washing cycles.
Innovation Solution
A household dishwasher incorporating a washing water spray nozzle module, steam generation module, induction module for heating, ultrasonic vibration module, and a controller to manage a multi-stage washing process, including steam generation, ultrasonic washing, and UV sterilization, ensuring uniform cleaning without dead zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high-pressure washing water is sprayed through spray nozzles, then washing power is improved, but dead zones appear between dishes where washing water cannot reach
Solution Approach 1:
The washing system is segmented into multiple independent washing modules: spray nozzle module for high-pressure spraying, steam generation module for steam washing, induction module for heating, and ultrasonic vibration module for ultrasonic cleaning. Each module targets different aspects of dishwashing to ensure complete coverage without dead zones.
Solution Approach 2:
The washing chamber serves multiple functions by integrating different washing methods (spray washing, steam washing, ultrasonic washing) into a single system. This multi-functional approach ensures that all areas of dishes, including hard-to-reach dead zones, are effectively cleaned through complementary washing mechanisms.
2Reliability
If dishes are arranged to reduce dead zones, then washing coverage is improved, but user operation complexity increases
Solution Approach 1:
The washing system performs self-service by automatically adapting to various dish arrangements through multiple washing mechanisms. The spray nozzles, steam generation, induction heating, and ultrasonic vibration work together to ensure uniform washing coverage regardless of how dishes are positioned, eliminating the need for users to carefully arrange dishes.
Solution Approach 2:
The system changes washing parameters (pressure, temperature, vibration frequency) across different modules to adapt to various dish positions and types. This allows the system to maintain effective washing coverage without requiring precise dish arrangement by users.
3Reliability
If multiple washing modules are integrated, then washing performance is improved, but device complexity increases
Solution Approach 1:
Multiple washing modules (spray nozzle module, steam generation module, induction module, ultrasonic vibration module) are merged into a single integrated washing chamber. This combination allows the system to achieve uniform washing coverage through synergistic operation of different washing mechanisms while sharing common structural components.
Solution Approach 2:
The washing chamber acts as an intermediary space that accommodates multiple washing modules and facilitates their coordinated operation. The controller serves as another intermediary, managing the operational relationships between different modules to achieve seamless multi-stage washing.
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 enables complete and uniform dish washing without dead zones, improving washing performance and user convenience by eliminating the need for precise dish arrangement.
Implementation Method 1
a steam generation module disposed in the washing chamber and supplying steam into the washing chamber using the washing water supplied from the washing water spray nozzle module
Implementation Method 2
an induction module disposed on an outer surface of the washing chamber and heating the washing water supplied in the washing chamber
Implementation Method 3
an ultrasonic vibration module disposed on an outer surface of the washing chamber and applying ultrasonic vibration to the washing water in the washing chamber to perform ultrasonic washing
Data Source
AI summary
A household dishwasher includes: a washing water spray nozzle module disposed on an area of inner surfaces of a washing chamber and spraying washing water, which is supplied from a water supply tube, into the washing chamber; a steam generation module disposed in the washing chamber and supplying steam into the washing chamber using the washing water supplied from the washing water spray nozzle module; an induction module disposed on an outer surface of the washing chamber and heating the washing water supplied in the washing chamber; an ultrasonic vibration module disposed on an outer surface of the washing chamber and applying ultrasonic vibration to the washing water in the washing chamber to perform ultrasonic washing; and a controller disposed in a body and controlling operational relationships of internal components in response to washing order signals from a user.