Washing Machine Detergent Drawer Recess Flushing Layout
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Solution Overview
Problem
In existing washing machines, detergent residues accumulate between the recess and the detergent drawer, requiring manual removal, which is difficult due to the recess's long and slim geometrical structure, and existing solutions do not effectively prevent residual detergent from sticking to the inner wall.
Innovation Solution
A detergent dispenser design with a funnel-shaped recess and a channel system that directs fresh water to flush out detergent residuals from the recess, ensuring all washing agents are transferred to the tub without leaving residues on the inner wall.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a box shaped recess with a slanted surface is used to direct water flow, then water can be directed towards the tub, but detergent residues accumulate on the slanted surface and in the recess
Solution Approach 1:
The patent extracts the water flow redirection function from the slanted surface of the recess and relocates it to a separate funnel element. This funnel is positioned at the outlet of the recess and directs water towards the tub without requiring the recess walls to be slanted, thereby preventing detergent residue accumulation on the recess surfaces.
Solution Approach 2:
The funnel acts as an intermediary element between the recess outlet and the tub. It receives water from the recess outlet and directs it towards the tub, separating the water flow direction function from the recess structure itself. This intermediary prevents detergent residues from sticking to the recess walls while still achieving proper water drainage.
2Quantity of substance
If water flows through the recess to reach the tub, then water transfer is achieved, but detergent residues stick to the inner wall of the recess
Solution Approach 1:
The water transfer function is extracted from the recess interior and concentrated through the funnel at the outlet. Water flows through the recess to reach the funnel, which then directs it towards the tub. This separation ensures water transfer while preventing detergent residues from sticking to the recess inner walls, as the funnel geometry promotes complete water drainage.
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 system effectively prevents detergent residues from sticking to the recess walls, allowing for easy cleaning and ensuring all washing agents are transferred to the tub, eliminating the need for manual residue removal and enabling fresh water to be directed into the tub at any time during the wash program.
Implementation Method 1
a channel (22) defined by a side wall (15d) of the recess and by a sort of dam (23) parallel to the side wall (15d). The channel (22) presents a feeding end portion (22a) fed by the water distributor device (17) and a curved guidance or second end (22b) which directs the water flow towards the slanted surface (15c)
Data Source
AI summary
A detergent dispenser for a washing machine comprises a box shaped recess and a washing agent drawer slidably mounted in the recess, such drawer being provided with a plurality of separate compartments for containing wash and/or rinse products to be flushed by an incoming water flow into the tub of the washing machine. The detergent dispenser has a channel in the bottom of the recess for directing the incoming water flow towards a predetermined zone of the box shaped recess without flowing through the drawer.