Dissolution device and drum washing machine having same
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Solution Overview
Problem
Existing drum washing machines do not completely dissolve laundry detergents, leading to residue on clothes, incomplete cleaning, and potential health and environmental hazards due to the agglomeration of washing powder and insufficient utilization of detergent active ingredients.
Innovation Solution
A dissolution device for drum washing machines featuring a first dissolution chamber with an inverted cone bottom wall and an impeller, where water flows along the bottom wall to create a swirling flow, and a flushing port to drive the impeller rotation, ensuring thorough detergent dissolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If washing powder is put in a detergent box and brought into the washing machine by influent water flow, then the detergent delivery is simple, but the detergent is not completely dissolved and forms residue
Solution Approach 1:
The patent introduces a dissolution chamber as an intermediary between the detergent box and the washing drum. This chamber contains water and an impeller that actively dissolves the detergent before it enters the washing drum, thereby resolving the contradiction between simple delivery structure and complete dissolution.
Solution Approach 2:
The patent performs preliminary dissolution of detergent in the dissolution chamber before the detergent reaches the washing drum. The impeller rotates to mix and dissolve the detergent in advance, preventing residue formation during the main washing process.
2Productivity
If high velocity flow drives an active impeller to rotate and drives a driven impeller to rotate, then the dissolution efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent merges the functions of active and driven impellers into a single dissolution chamber. The active impeller driven by high-velocity water flow rotates to dissolve detergent, while the driven impeller is passively rotated by the same water flow, combining multiple dissolution functions in one integrated system.
Solution Approach 2:
The patent uses high-velocity water flow (hydraulic principle) to drive the active impeller rotation. The kinetic energy of the water flow is converted into rotational motion of the impeller, eliminating the need for external motors or complex mechanical drive systems.
3Device complexity
If detergent is not completely dissolved, then the detergent delivery is simple, but the cleaning effect degrades due to insufficient utilization of active ingredients
Solution Approach 1:
The dissolution chamber serves as an intermediary that ensures complete detergent dissolution before the detergent enters the washing drum. This intermediate processing step guarantees that all active ingredients are properly dissolved, thereby ensuring reliable cleaning performance without complicating the overall delivery system.
Solution Approach 2:
The system performs preliminary dissolution of detergent in the dissolution chamber using water flow and impeller rotation. This pre-dissolution ensures that the detergent is fully activated and ready for effective cleaning, preventing degradation of cleaning effect due to incomplete dissolution.
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 significantly enhances detergent dissolution efficiency, resulting in improved cleaning effectiveness and complete detergent utilization, reducing residue and environmental impact.
Implementation Method 1
the water flows along the bottom wall of the first dissolution chamber, whereby a swirling water flow can be formed in the first dissolution chamber
Implementation Method 2
the water in the water input box can be directed towards the impeller through the flushing port to drive the impeller to rotate
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Disclosed are a dissolution device and a drum washing machine having the same. The dissolution device comprises a water input box (1), a dissolution box (2) and an impeller (3), wherein the water input box (1) is provided with a water inlet (11), a first drain port (12) and a flushing port (16); the impeller (3) is rotatably provided to a side wall of the dissolution box (2) and is located at the flushing port (16); and the water in the water input box (1) rushes to the impeller (3) through the flushing port (16), so as to push the impeller (3) to rotate. The above-mentioned arrangements allow a detergent to be fully dissolved.