Dishwasher

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Solution Overview

Problem

Conventional dishwashers face limitations in both front and top loading capabilities, and are prone to contamination due to the design of their door structures and water management systems.

Innovation Solution

A dishwasher design featuring a tub with both front and top openings, a rotatable top door, a cover frame with a seating portion and frame injector to remove foreign substances, and a drainage system that collects and recirculates washing water to prevent contamination and enhance loading flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a front loading type dishwasher is used, then tableware can be loaded from the front, but food residues may fall on the floor during loading

Engineering Contradiction:

Improveloading convenienceVSAvoidfood residue contamination

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The dishwasher is divided into two separate loading openings: a front opening for loading tableware and a top opening for adding water. This segmentation allows users to load tableware from the front without bending down, while the top opening enables water to be added from above, preventing food residues from falling on the floor during loading.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If a top loading type dishwasher is used, then water can be added from the top, but interference between the upper space of the tub and the door makes it difficult to load tableware of certain size

Engineering Contradiction:

Improvewater addition convenienceVSAvoidtableware loading capacity

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The dishwasher is divided into two separate loading openings: a front opening for loading tableware and a top opening for adding water. This segmentation allows users to load tableware of various sizes from the front opening without obstruction, while the top opening enables water to be added from above, solving both loading capacity and water addition convenience issues.

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If a top door is added to enable top loading, then loading flexibility is improved, but the cover frame supporting the top door becomes prone to contamination

Engineering Contradiction:

Improveloading flexibilityVSAvoidcover frame contamination

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The harmful factor of water accumulation on the cover frame is extracted and removed through a drainage hole provided in the cover frame. This allows water that accumulates on the cover frame during operation to be drained out, preventing contamination and maintaining hygiene.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

A drainage hole is introduced as an intermediary element in the cover frame to mediate between the water accumulation problem and the contamination issue. The drainage hole serves as a pathway for water to escape, preventing it from remaining on the cover frame and causing contamination.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Device complexity

If washing water is not managed properly, then the structure becomes simpler, but contamination occurs on the cover frame and surrounding areas

Engineering Contradiction:

Improvestructure simplicityVSAvoidcontamination

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The harmful factor of water accumulation is extracted and removed through a drainage hole provided in the cover frame. This allows water that accumulates on the cover frame during operation to be drained out, preventing contamination while maintaining structural simplicity.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The drainage system operates automatically without requiring external intervention. Water accumulates on the cover frame during operation and is automatically drained through the drainage hole, enabling the system to manage its own water and prevent contamination without additional complexity.

Inventive Principle:

Principle #25Self-service

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

Enables efficient front and top loading of tableware while preventing contamination of the cover frame, improving user convenience and hygiene by effectively managing washing water and foreign substances.

Implementation Method 1

a frame injector disposed on the cover frame to inject washing water from one side of the cover frame

Methodology Applied

Scientific EffectFluid injection: Injector

Implementation Method 2

a drain hole to drain the washing water collected in the cover frame

Methodology Applied

Scientific EffectGravity drainage: Gravitation

Data Source

PatentUS11259682B2Dishwasher

Publication Date: 2022.03.01 SAMSUNG ELECTRONICS CO LTD

AI summary

The present disclosure relates to a dishwasher having a structure improved in convenience of use. The dishwasher includes a tub having a front opening and a top opening, a front door configured to open and close the front opening, a cover frame disposed on the top opening and including an opening opened in the up-down direction, a top door configured to open and close the opening of the cover frame, and a frame injector disposed on the cover frame to inject washing water from one side of the cover frame.