Detachable Detergent Supply Layout for Accurate First-Dose Washing
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Solution Overview
Problem
Existing laundry treating apparatuses face difficulties in accurately supplying washing agents due to the installation of residual quantity detecting units, which complicates the removal and refilling of storage containers, leading to challenges in washing agent distribution and container maintenance.
Innovation Solution
A laundry treating apparatus with a detachable storage container for the washing agent, featuring a residual quantity detecting unit in the supply passage that allows for separate installation and facilitates the detection of residual quantities, enabling accurate liquid washing agent supply based on laundry quantity and container volume, with a controller managing the supply to ensure appropriate amounts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the residual quantity detecting unit is installed at the storage container, then the residual quantity of washing agent can be detected, but it becomes difficult to draw out the storage container for refilling and maintenance
Solution Approach 1:
The residual quantity detecting unit is separated from the storage container and relocated to the washing agent supply passage. This segmentation allows the storage container to be freely removable while maintaining the detection function in a fixed position within the supply system.
2Measurement precision
If the storage container is fixed to the cabinet, then the residual quantity detecting unit can be installed, but it becomes difficult to inject the liquid washing agent into the storage container
Solution Approach 1:
The storage container is extracted from the fixed cabinet structure and made into a detachable component. The residual quantity detecting unit remains installed in the supply passage, enabling both easy refilling of the container and continuous monitoring of washing agent levels.
3Measurement precision
If the storage container is difficult to draw out, then the residual quantity detecting unit can be installed at the container, but it is not easy to wash the inside of the storage container
Solution Approach 1:
By separating the detection unit from the storage container and placing it in the supply passage, the container becomes a standalone removable component that can be easily taken out for cleaning and maintenance while the detection function remains operational in the fixed supply system.
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 precise and efficient supply of washing agents, allowing for easy maintenance and refilling of the storage container, improving washing agent distribution and reducing residual quantity-related issues.
Implementation Method 1
a pump provided in the washing agent supply passage
Implementation Method 2
a residual quantity detecting unit provided in the washing agent supply passage to detect a residual quantity of the liquid washing agent
Data Source
Figure 1
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Figure 3
AI summary
A laundry treating apparatus according to the present invention includes a washing agent supply unit (170) supplying a liquid washing agent into a tub (120) through a washing agent supply passage (190) between a storage container and the tub, a residual quantity detecting unit (250) to detect a residual quantity of the liquid washing agent, a laundry quantity detecting unit (315) to detect a laundry quantity, and a controller (310) controlling the washing agent supply unit to supply the liquid washing agent by adding a quantity of the liquid washing agent corresponding to the laundry quantity with a quantity of the liquid washing agent corresponding to the washing agent supply passage, when the liquid washing agent is initially supplied after detecting a residual quantity shortage of the washing agent, whereby an accurate quantity of the liquid washing agent can be supplied upon an initial supply after the detection of the residual quantity shortage.