Low-Mounted Detergent Module With Rinsable Flow Path for Washers

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Solution Overview

Problem

Conventional laundry treating apparatuses are inconvenient due to the elevated position of the detergent storage unit, requiring users to lift detergents high up for introduction, and often lead to clogged detergent supply channels.

Innovation Solution

A laundry treating apparatus with a detergent supply module that includes a detergent discharge conduit, pump connection conduit, and detergent supply conduit, positioned at a lower level, allowing easy detergent supply and featuring a rinsable flow channel to prevent clogging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the detergent storage unit is positioned at the upper portion of the laundry treating apparatus, then the detergent can be stored in a compact space, but the user experiences inconvenience when introducing detergent due to the high position

Engineering Contradiction:
Improvedetergent storage spaceVSAvoiddetergent introduction convenience
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The detergent storage system is divided into two separate components: a removable container for detergent storage and a fixed detergent supply module with discharge mechanism. This segmentation allows the container to be positioned at a convenient lower level while the supply module remains integrated in the upper portion, resolving the contradiction between compact storage and ease of operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The detergent supply module acts as an intermediary between the user-introduced container and the washing drum. It receives detergent from the container and automatically supplies it to the drum through controlled discharge, eliminating the need for users to manually introduce detergent to the upper portion while maintaining efficient detergent delivery.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If the detergent supply channel is positioned at the upper portion, then the detergent can be directly supplied to the drum, but the flow channel is prone to clogging

Engineering Contradiction:
Improvedetergent supply efficiencyVSAvoidflow channel畅通性
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

Instead of positioning the detergent discharge at the upper portion near the drum, the discharge conduit is inverted to be located at the lower portion of the detergent supply module. This inversion allows the detergent to flow downward through a lower-positioned channel, reducing clogging while maintaining supply efficiency through gravitational assistance and controlled discharge.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The detergent supply module incorporates a pump mechanism that uses hydraulic principles to control detergent discharge. The pump creates controlled pressure to move detergent through the flow channel, preventing stagnation and clogging while ensuring reliable and efficient detergent delivery to the drum.

Inventive Principle:
Principle #29Pneumatics and hydraulics

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 lowered detergent storage position and integrated detergent supply module facilitate easy detergent access and prevent clogging, ensuring a constant detergent supply during washing.

Implementation Method 1

a pump connection conduit to connect an interior of the accommodation frame with the detergent pump

Methodology Applied
Scientific EffectPressure differential: Pressure Gradient

Implementation Method 2

a detergent supply conduit to guide the detergent discharged from the detergent pump to an upper surface of the tub

Methodology Applied
Scientific EffectGravitational flow: Gravitation

Data Source

PatentEP2894249B1Laundry treating apparatus
Publication Date: 2022.11.02 LG ELECTRONICS INC
  • EP2894249B1 patent drawingFigure 1
  • EP2894249B1 patent drawingFigure 2
  • EP2894249B1 patent drawingFigure 3

AI summary

The invention provides a laundry treating apparatus comprising: a cabinet (110) provided with an introduction port (113) for introduction of laundry; a tub (130) arranged in the cabinet (110) to provide a space for storing washing water, the tub (130) communicating with the introduction port (113); a detergent supply module (200) positioned at a lower portion of the introduction port (113) to supply a detergent to the tub (130), the detergent supply module (200) being detachably provided to the cabinet (110), the detergent supply module (200) comprising a container (230, 231, 232) to store the detergent therein; and a water supply unit (160) comprising a water supply channel (162) arranged to connect a water supply source to the tub.