Clothes Dryer Filter Cleaning Nozzle Design for Uniform Water Coverage

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Solution Overview

Problem

Existing clothes treating apparatuses face inefficiencies in cleaning the filter, particularly due to areas not being in contact with water or having weak water pressure, leading to incomplete removal of foreign materials.

Innovation Solution

A clothes treating apparatus design featuring a cleaning nozzle inclined to face the filter, with a quadrangle-shaped duct opening and nozzle rib to ensure full exposure of water to the filter, and a sealing member to prevent water blockage, allowing for uniform cleaning across the filter area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the cleaning nozzle is positioned to spray water at the filter, then foreign materials can be removed from the filter, but certain areas of the filter may not be in contact with water or may be in contact with water of weak water pressure, resulting in incomplete cleaning

Engineering Contradiction:
Improvefilter cleaning efficiencyVSAvoidcleaning coverage uniformity
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The cleaning nozzle is divided into multiple spray holes arranged in different directions, with each spray hole targeting a specific area of the filter. This segmentation allows water to be sprayed from multiple angles simultaneously, ensuring complete coverage of the entire filter surface including previously inaccessible areas.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different spray holes are positioned and oriented to provide localized high-pressure water streams tailored to specific regions of the filter. The nozzle structure ensures that each area of the filter receives appropriately directed water flow with sufficient pressure for effective cleaning.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If the duct opening is made larger to allow better nozzle exposure to the filter, then water can reach the filter more effectively, but the structural integrity and sealing of the duct may be compromised

Engineering Contradiction:
Improvenozzle exposure to filterVSAvoidduct sealing
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The duct opening is segmented into multiple smaller openings corresponding to the spray holes in the nozzle. This segmentation allows water to pass through multiple small channels rather than one large opening, maintaining duct structural integrity while still providing adequate water flow to the filter.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The duct opening acts as an intermediary structure that mediates between the water supply and the filter cleaning requirement. The opening is designed with precise dimensions and positioning to allow water passage while maintaining the necessary seal and structural strength of the duct.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 enhances filter cleaning efficiency by ensuring all areas of the filter are effectively cleaned, improving the removal of foreign materials and maintaining consistent cleaning performance.

Implementation Method 1

a cleaning nozzle coupled to the tub duct, having one side corresponding to a shape of the air outlet, and inclined with respect to the tub duct to face the filter, the cleaning nozzle including a nozzle inserted into the tub duct through the duct opening to be positioned inside the tub duct and configured to spray water toward the filter

Methodology Applied
Scientific EffectFluid spray: Fluid Spray

Data Source

PatentUS20230304211A1Clothes treating apparatus
Publication Date: 2023.09.28 SAMSUNG ELECTRONICS CO LTD
  • US20230304211A1 patent drawing
  • US20230304211A1 patent drawing
  • US20230304211A1 patent drawing

AI summary

A clothes treating apparatus capable of improving filter cleaning efficiency by a cleaning nozzle. The clothes treating apparatus includes: a cabinet; a tub inside the cabinet, being in a shape of a cylinder, and including an air outlet formed in a circumference of the tub and a tub duct protruding outward from the tub and configured to guide air discharged through the air outlet, the tub duct having a duct opening formed in a side of the tub duct; a filter case to which a filter is installed to filter a foreign material included in air passing through the air outlet, the filter case coupled to the tub duct; and a cleaning nozzle including a nozzle inserted into the tub duct through the duct opening to be positioned inside the tub duct and configured to spray water toward the filter.