Single-Drum Washing Machine with Internal Water Drainage Channel
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Solution Overview
Problem
Existing washing machines face issues with large water consumption, detergent waste, and short service life due to the presence of an outer drum, which also limits capacity and efficiency.
Innovation Solution
A single-drum washing machine design where the washing drum serves as both the water holding and rotating drum, equipped with an internal water drainage channel that guides water from the top to the bottom, eliminating the need for an outer drum and enhancing dehydration efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If an outer drum is installed outside the washing drum to provide support, then the washing drum can rotate stably, but the overall size of the washing machine increases and the washing capacity is reduced
Solution Approach 1:
The invention removes the outer drum structure from the washing machine, extracting only the essential water holding function to the washing drum itself. The washing drum is designed with an enlarged volume and integrated water drainage channels directly on its peripheral wall, eliminating the need for a separate outer drum while maintaining stable rotation and water management capabilities.
2Reliability
If water is distributed between the water holding drum and the rotating drum, then the washing effect is improved, but water consumption increases
Solution Approach 1:
The invention merges the water holding function and the rotating washing function into a single integrated washing drum structure. The washing drum serves both purposes simultaneously, with water being held and distributed within the drum itself during rotation, eliminating the need for a separate outer water holding drum and thereby reducing water consumption while maintaining effective washing.
3Productivity
If a water collecting device with external water drainage pipes is used, then water can be discharged during dehydration, but the water collecting opening and drainage pipes are prone to collision and abrasion, reducing service life
Solution Approach 1:
The invention nests the water drainage channels directly within the peripheral wall structure of the washing drum itself. The drainage channels are integrated into the drum wall rather than being external attachments, so they rotate together with the drum as a unified structure. This nested integration eliminates relative movement and collision between drainage components and the drum, preventing abrasion and extending service life while maintaining effective water discharge during dehydration.
4Quantity of substance
If the washing drum is enlarged to increase capacity, then more clothes can be washed, but the machine becomes more complex and harder to manufacture
Solution Approach 1:
The invention designs the washing drum to perform multiple functions simultaneously: it serves as the rotating drum for washing, the water holding drum for water management, and incorporates integrated water drainage channels for dehydration. This multi-functional design eliminates the need for separate outer drums and external drainage systems, thereby enlarging the effective washing capacity while actually simplifying the overall structure and reducing manufacturing complexity.
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
This design reduces water usage, increases washing capacity, lowers noise during dehydration, and extends the machine's service life by preventing collisions that could lead to water leakage and abrasion.
Implementation Method 1
washing water, which rises under an effect of an eccentric force, in a washing drum is guided from top to bottom to a water drainage outlet via the water drainage channel and is discharged
Data Source
AI summary
A washing machine comprises a cabinet, a washing drum rotatably arranged in the cabinet, wherein the washing drum is a water holding drum to accommodate washing water, a water drainage channel which discharges water from top to bottom is arranged at an inner side of a peripheral wall of the washing drum, an upper end of the water drainage channel communicates with the inside of a washing drum, and a lower end communicates with the outside of the washing drum. The water drainage channel comprises a water channel casing and at least part of a washing drum wall, and one side, facing the washing drum wall, of the water channel casing is provided with a cut-through groove, the water channel casing is fastened on the washing drum wall, and forms a water flow channel together with the washing drum wall.