Dual-Access Dishwasher Design for Front and Top Loading Flexibility

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Solution Overview

Problem

Conventional dishwashers face challenges in accommodating both front-loading and top-loading of dishes, particularly due to space interference issues, which limits user convenience and washing capacity.

Innovation Solution

A dishwasher design featuring a tub with both front and top openings, including a front door and a top door, with additional baskets that can be taken out through the top opening, and a detergent supply system that allows easy detergent access through the top door, enhancing user convenience and washing space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a dishwasher has only a front opening with a front door, then front loading is enabled, but top loading capability is lost and user convenience is reduced

Engineering Contradiction:
Improveloading capabilityVSAvoiddoor structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The dishwasher is equipped with both a front door and a top door, allowing the same device to perform both front loading and top loading functions. This multi-functionality design enables users to load dishes from either direction based on their preferences and needs, directly resolving the contradiction between versatility and complexity by making the device universally applicable to different loading methods

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Volume of moving object

If a dishwasher has only a single basket, then the structure is simple, but the washing space is limited and cannot accommodate different sizes of dishes

Engineering Contradiction:
Improvewashing spaceVSAvoidbasket structure
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The washing space is divided into multiple independent baskets (upper basket and lower basket) that can be separately accessed and removed. This segmentation allows different sized dishes to be placed in different baskets, effectively increasing the total washing space utilization while maintaining operational simplicity through independent basket design

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If dishes are loaded in the basket of a front loading dishwasher, then food residues may fall on the installation surface, but if a top loading design is used, then dishes of predetermined size or larger cannot be loaded due to interference between the upper space of the tub and the door

Engineering Contradiction:
Improvedishing convenienceVSAvoidaccommodating space
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The invention adds a vertical dimension to the loading capability by incorporating a top door that opens upward, independent of the front door. This dimensional change allows large dishes to be loaded from the top without interference from the front door structure, while the front door continues to provide access for smaller items, thus resolving the spatial conflict between door interference and accommodating space

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3649910A1dishwasher
Publication Date: 2020.05.13 SAMSUNG ELECTRONICS CO LTD
  • EP3649910A1 patent drawingFigure 1
  • EP3649910A1 patent drawingFigure 2
  • EP3649910A1 patent drawingFigure 3

AI summary

Provided is a dishwasher with a structure capable of improving ease of use. The dishwasher may be installed in a built-in type in a system kitchen including a cabinet having an accommodating space and a counter positioned on the cabinet and including an opening. The dishwasher may include: a tub including a front opening; a front door configured to open or close the front opening; a top door configured to open or close the opening; a basket positioned in the inside of the tub, the basket being taken out through the front opening; and an additional basket being taken out through the opening.