Lint Cleaning Device with Brush-Driven Chamber Door for Containment

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Solution Overview

Problem

Existing clothing treatment devices lack an effective mechanism to prevent lint from being swept in unintended directions during cleaning, and there is a risk of lint escaping from the lint chamber and contaminating the device.

Innovation Solution

A lint cleaning device is integrated into the clothing treatment device, featuring a brush that rotates between two positions along the inner surface of a filter member, a lint chamber, a chamber door, and an operation assembly that includes a cam, lever, and latch to automatically clean and contain lint.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a brush is used to clean lint from the filter member, then lint cleaning effectiveness is improved, but lint may be swept in unintended directions causing contamination

Engineering Contradiction:
Improvelint cleaning effectivenessVSAvoidlint contamination
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

A guide structure acts as an intermediary between the brush and the lint chamber, directing the path of swept lint. The guide structure includes a guide wall and guide opening that work together to channel lint into the chamber while preventing it from escaping to other areas of the device.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The lint chamber is extracted as a separate containment component from the main filter assembly. This separate chamber isolates the collected lint from the filtering mechanism and other device components, preventing contamination while allowing effective brush cleaning.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If the chamber door is kept open for easy lint removal, then ease of operation is improved, but lint may escape and contaminate the device interior

Engineering Contradiction:
Improvelint chamber accessibilityVSAvoidlint contamination
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The guide structure serves as a mediator that allows the chamber door to remain open for accessibility while preventing lint from escaping. The guide wall and guide opening create a controlled pathway that directs lint into the chamber even when the door is open, eliminating the need to close the door for effective containment.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If the brush rotates continuously to clean lint, then productivity is improved, but energy consumption increases

Engineering Contradiction:
Improvelint cleaning speedVSAvoidbrush motor energy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The brush operates with periodic reciprocating motion rather than continuous rotation. The brush moves forward to engage and sweep lint, then reverses to reset position, creating efficient cleaning cycles that reduce energy consumption while maintaining effective lint removal through repeated contact with the filter member surface.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS20250059699A1Lint cleaning device and clothing treatment device including the same
Publication Date: 2025.02.20 SAMSUNG ELECTRONICS CO LTD
  • US20250059699A1 patent drawing
  • US20250059699A1 patent drawing
  • US20250059699A1 patent drawing

AI summary

A clothing treatment device including a lint cleaning device including a rotatable brush including a tip portion, a lint chamber, a chamber door that is rotatable to open and close the lint chamber, a driver to rotate the brush, and an operation assembly to rotate the chamber door. The lint cleaning device is configured so that a filter member is couplable to the lint cleaning device, the driver is operable to rotate the brush from a first position to a second position so that the tip portion of the brush is moved along, and in contact with, the filter member to remove lint from the filter member, and, while the driver rotates the brush from the first to the second position, the driver actuates the operation assembly to rotate the chamber door to open the lint chamber so that lint moved by the brush is receivable in the lint chamber.