Hand Vacuum Cyclone Outlet Assembly for Simplified Filter Access
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Solution Overview
Problem
Cyclonic vacuum cleaners face challenges in optimizing the design of cyclone chambers and dirt collection systems for efficient dirt separation and collection, particularly in portable vacuum cleaners where space and airflow dynamics are critical.
Innovation Solution
The design incorporates a cyclone with a non-uniform gap between the cyclone outlet and a facing plate, featuring a variable sidewall length and a plate with a sidewall extending towards the open end, to create a non-uniform dirt outlet, enhancing dirt collection efficiency and airflow management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a uniform gap is provided between the cyclone outlet and the facing plate, then the manufacturing is simple, but the dirt separation efficiency is reduced
Solution Approach 1:
The gap between the cyclone outlet and the facing plate is configured to have non-uniform dimensions, with different gap sizes at different locations. This local variation in gap quality optimizes airflow patterns and enhances dirt separation efficiency in specific regions where it is most needed, rather than using a uniform gap throughout.
Solution Approach 2:
The facing plate is positioned asymmetrically relative to the cyclone outlet, creating an asymmetric gap configuration. This asymmetric arrangement disrupts symmetric airflow patterns and creates optimized turbulent flow conditions that improve dirt separation performance.
2Productivity
If the cyclone chamber volume is increased to improve dirt collection capacity, then the dirt collection efficiency is improved, but the device size increases
Solution Approach 1:
The facing plate is positioned within or near the cyclone chamber structure, creating a nested configuration where the plate occupies space within the overall device envelope. This allows the cyclone chamber to maintain adequate volume for dirt collection while the compact plate structure minimizes additional space requirements.
Solution Approach 2:
The facing plate extends in a direction transverse to the cyclone chamber's longitudinal axis, utilizing a different spatial dimension for dirt collection. This transverse extension increases the effective dirt collection surface area without proportionally increasing the cyclone chamber's longitudinal volume.
3Productivity
If a facing plate is positioned close to the cyclone outlet to improve dirt outlet management, then the airflow dynamics are optimized, but the risk of clogging increases
Solution Approach 1:
The facing plate is positioned at a specific optimal distance from the cyclone outlet, creating a localized region of optimized airflow control. This controlled proximity improves dirt outlet management and airflow dynamics while maintaining sufficient clearance to prevent clogging.
Solution Approach 2:
The facing plate is configured with multiple openings or a perforated structure that segments the airflow path. This segmentation allows controlled airflow through multiple pathways, optimizing airflow dynamics while reducing the risk of complete blockage by distributing dirt particles across multiple exit routes.
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 configuration improves dirt separation and collection efficiency by optimizing airflow dynamics and ensuring effective dirt outlet management, suitable for portable vacuum cleaners.
Implementation Method 1
Cyclonic vacuum cleaners utilize one or more cyclones that have an associated dirt collection chamber
Implementation Method 2
Cyclonic vacuum cleaners utilize one or more cyclones
Data Source
AI summary
A hand vacuum cleaner has a cyclonic stage comprising a cyclonic stage front end, a cyclonic stage rear end, a cyclonic stage sidewall, a cyclone, the cyclonic stage front end having an openable door, the cyclone comprising a cyclone front end, a cyclone rear end, a cyclone air inlet, a cyclone air outlet and a cyclone axis of rotation which intersects the cyclone front end and the cyclone rear end, the cyclone air outlet comprising an assembly which includes a filter screen. The assembly is removeable through the cyclonic stage front end when the openable door is in an open position.