Venturi Circulation Structure for Bubble-Generating Washing Machines
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Solution Overview
Problem
Conventional washing machines do not effectively generate bubbles in wash water, which can enhance cleaning efficiency, and their structures are often complex, leading to increased production costs.
Innovation Solution
A simplified structure for a washing machine that incorporates a circulation unit with channels of different diameters and an air inlet port to utilize the Venturi effect, allowing air to be introduced into the wash water, thereby generating bubbles and improving cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional wash water circulation unit is used, then wash water can be circulated, but bubbles cannot be generated effectively
Solution Approach 1:
The patent combines the wash water circulation function and bubble generation function into a single integrated circulation unit. The circulation hose serves dual purposes: circulating wash water and generating bubbles through the Venturi effect, eliminating the need for separate bubble generation devices and simplifying the overall structure.
Solution Approach 2:
The patent utilizes the Venturi effect, a pneumatic-hydraulic principle, to generate bubbles. By designing the circulation hose with a constricted section (Venturi tube), the flowing wash water creates a pressure difference that draws air into the water stream, automatically generating bubbles without mechanical agitation or additional energy input.
2Device complexity
If simple circulation structures are used, then production costs are reduced, but bubble generation capability is lost
Solution Approach 1:
The patent modifies the geometric parameters of the circulation hose by incorporating a Venturi tube with a specific constricted section. This parameter change in the hose structure enables the simple circulation system to generate bubbles by creating a pressure differential that draws air into the water flow, maintaining structural simplicity while adding bubble generation functionality.
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 effectively generates bubbles in wash water, enhancing cleaning efficiency while reducing energy consumption and production costs by leveraging the Venturi effect and a streamlined design.
Implementation Method 1
the circulation unit includes a first channel, a second channel communicating with the first channel, the second channel having a smaller sectional area than the first channel, and an air inlet port provided in the second channel to allow air to be introduced into the circulation unit therethrough
Data Source
AI summary
A washing machine that circulates wash water and, at the same time, generates bubbles in the wash water. The washing machine includes a machine body, a tub disposed in the machine body. a tub cover provided above the tub, a pump mounted below the tub, and a circulation unit, having one end coupled to the pump and the other end coupled to the tub cover, to circulate wash water from the pump to the tub. The circulation unit includes a first channel, a second channel communicating with the first channel, the second channel having a smaller sectional area than the first channel, and an air inlet port provided in the second channel to allow air to be introduced into the circulation unit therethrough.