Vacuum Cleaner Air Passage Layout for Lower Flow Loss
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Solution Overview
Problem
Vacuum cleaners, especially battery-powered models, face significant air flow losses in their air passages, which reduce suction efficiency and increase energy consumption, making it inefficient to compensate by increasing motor power and costly to enhance battery capacity.
Innovation Solution
The implementation of a vacuum cleaner design featuring a flexible hose with a rectangular cross-sectional shape, a quick release arrangement, and optimized air passage dimensions, along with a cyclone-like debris collector and strategically positioned air outlets, minimizes air flow losses by reducing abrupt changes, debris clogging, and enhancing airflow directionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If motor power is increased to compensate for air flow losses, then suction efficiency is improved, but energy consumption increases and battery life decreases
Solution Approach 1:
The patent applies parameter changes by optimizing the cross-sectional area of air passages throughout the vacuum cleaner to maintain appropriate air velocity. By carefully selecting and maintaining specific dimensional parameters of the air passages, the system reduces air flow losses without requiring increased motor power, thus resolving the contradiction between suction efficiency and energy consumption.
2Reliability
If battery power capacity is increased to compensate for air flow losses, then suction efficiency is improved, but cost and weight increase
Solution Approach 1:
The patent optimizes the dimensional parameters of air passages to minimize air flow losses, thereby maintaining suction efficiency without requiring additional battery capacity. This approach avoids the weight increase that would result from adding more batteries, while still achieving the desired performance level.
3Reliability
If air passage cross-sectional area is increased to reduce air flow losses, then suction efficiency is improved, but device volume increases
Solution Approach 1:
The patent applies parameter changes by optimizing the cross-sectional area of air passages to maintain appropriate air velocity while minimizing cross-sectional dimensions. By carefully selecting specific dimensional parameters, the system achieves reduced air flow losses without significantly increasing the overall volume of the vacuum cleaner components.
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 enhances suction efficiency, reduces energy consumption, and allows for more effective vacuum cleaning in compact and cost-effective battery-powered vacuum cleaners, including 2-in-1 models, by minimizing air flow losses and maintaining optimal airflow rates.
Implementation Method 1
a cyclone-like separator including a debris container (7) for collecting debris and dust
Implementation Method 2
a cyclone-like separator including a debris container (7) for collecting debris and dust
Data Source
AI summary
A vacuum cleaner having an elongated support body, a nozzle attached to a lower end of the elongated support body by an articulated joint, a motor, a fan unit, a debris container, and an air passage that extends from the nozzle device, past the articulated joint by a flexible hose and to an air passage in the support body. The flexible hose is formed with a generally rectangular cross section.