dishwasher
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Solution Overview
Problem
Conventional dishwashers are inefficient in washing dishes with circular bottoms and consume excessive water and electricity, as they typically spray wash water in a one-dimensional manner and have a large size that is not suitable for small households.
Innovation Solution
A dishwasher design with a withdrawable drawer and a rack system that includes multiple injection sections to spray wash water at different angles, accommodating dishes with circular bottoms and larger items, allowing for three-dimensional washing and minimizing the appliance's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wash water is sprayed in a one-dimensional manner using conventional injection devices, then the dishwasher can be designed with a relatively simple structure, but the ability to wash dishes effectively is reduced and water consumption increases
Solution Approach 1:
The patent transitions from one-dimensional spray injection to three-dimensional spray injection by positioning injection devices at multiple locations (upper, lower, and side portions of the washing chamber) to spray wash water from different directions simultaneously, thereby improving washing effectiveness without significantly increasing structural complexity
2Productivity
If a large-volume dishwasher with injection devices above and below the rack is designed, then washing coverage is improved, but the size of the appliance increases making it unsuitable for small households
Solution Approach 1:
The patent achieves comprehensive washing coverage in a compact volume by implementing three-dimensional spray injection from multiple directions (upper, lower, and side portions) rather than relying on large volume, thereby providing effective washing coverage suitable for small households
3Device complexity
If conventional one-dimensional spray injection is used, then the dishwasher structure remains simple, but water and electricity consumption increase due to inefficiency
Solution Approach 1:
The patent improves water and electricity efficiency by implementing three-dimensional spray injection that targets dishes from multiple directions, reducing water waste through more precise and effective coverage while maintaining simple injection device structures
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 design enables efficient washing of dishes with circular bottoms and reduces water and electricity consumption by spraying wash water in a three-dimensional manner, effectively addressing the limitations of conventional dishwashers.
Implementation Method 1
injection sections to spray wash water at different angles, accommodating dishes with circular bottoms and larger items, allowing for three-dimensional washing
Data Source
Figure 1
Figure 2(a)~2(c)
Figure 3
AI summary
Disclosed herein is a dishwasher capable of supplying wash water to dishes stored in a case to remove contaminants from the dishes. The dishwasher includes a case providing a washing space and having an opening surface, a rack provided in the case to provide a storage space for washing objects, a door for opening and closing the opening surface to withdraw the rack from the case, and an injection section provided in the case to spray wash water toward the rack.