Piston-Based Detergent Release Device for Accurate Quantitative Dosing
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Solution Overview
Problem
Existing washing machines face challenges with inaccurate and complex automatic detergent addition, requiring high structural complexity and cost, especially when using venturi principles, gear pumps, peristaltic pumps, or piston pumps, which are not conducive to precise quantitative release.
Innovation Solution
A clothes treatment agent release device featuring a storage cavity, a release cavity with one-way valves, and a piston mechanism driven by a reciprocating motion mechanism, allowing for accurate and quantitative release of detergents through a simple and cost-effective mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If venturi principle is used for automatic detergent release, then detergent can be added automatically, but the structure becomes complex and cost increases
Solution Approach 1:
The patent extracts the complex venturi structure and replaces it with a simple piston-cylinder mechanism combined with one-way valves. The release cavity, piston, and one-way valves form a minimal structure that achieves automatic detergent release without requiring complex flow dynamics or multiple components.
Solution Approach 2:
The one-way valves enable the system to automatically control liquid flow direction without external control mechanisms. The piston mechanism automatically draws detergent in during one stroke and releases it during the return stroke, creating a self-regulating system that requires no additional actuators or control systems.
2Extent of automation
If gear pump, peristaltic pump or piston pump is used for detergent release, then automatic release can be achieved, but motor and pump components increase cost and prevent accurate quantitative release
Solution Approach 1:
The patent replaces complex motor-driven pump systems with a simple reciprocating piston mechanism. By controlling the piston's stroke volume and frequency, the system achieves precise quantitative release without requiring motors, pumps, or complex mechanical drive systems.
Solution Approach 2:
The system achieves quantitative control by adjusting parameters such as piston stroke volume, reciprocation frequency, and release timing. These parameter changes allow precise control of detergent quantity released without requiring complex measurement and control systems.
3Extent of automation
If existing automatic detergent addition methods are used, then detergent can be released automatically, but the release accuracy is insufficient
Solution Approach 1:
The patent uses the release cavity as a precise volumetric copy of the desired detergent quantity. By controlling the piston stroke to displace a specific volume of detergent, the system accurately replicates the target quantity for release, ensuring consistent and precise detergent addition.
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 solution enables precise and efficient release of detergents and care agents, improving user experience by simplifying the structure and reducing costs while ensuring accurate quantitative release, thus addressing the limitations of existing technologies.
Implementation Method 1
a liquid inlet one-way turn-on part being arranged at the liquid inlet, and a liquid outlet one-way turn-on part being arranged at the liquid outlet; the driving mechanism drives the piston mechanism to do reciprocating motion in the release cavity, the liquid inlet one-way turn-on part/the liquid outlet one-way turn-on part respectively and unidirectionally turns on the liquid inlet/the liquid outlet
Data Source
AI summary
A clothes treatment agent release device includes: a storage cavity in which a clothes treatment agent is stored; a release cavity with a liquid outlet and a liquid inlet communicating with the storage cavity, a one-way turn-on part arranged at the liquid inlet, and a one-way turn-on part being at the liquid outlet; a reciprocating piston in the release cavity; and a driving mechanism to drive the piston mechanism, the liquid inlet turn-on part/the liquid outlet turn-on part respectively and unidirectionally turn on the liquid inlet/the liquid outlet in the reciprocating motion of the piston mechanism. The clothes treatment agent in the storage cavity is sucked into the release cavity from the liquid inlet, and is discharged and released from the liquid outlet.