Hand-Guided Cyclone Vacuum Cleaner Drive Unit Nesting
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Solution Overview
Problem
Hand-held cyclone vacuum cleaners require a large installation space due to the flow arrangement of multiple filter stages, making them less compact and difficult for users to access and clean the filters effectively.
Innovation Solution
The suction air flow is designed to pass through a first filter stage, then a second filter stage, and finally around a drive unit before reaching a third filter stage, allowing the drive unit housing to be positioned downstream of the second filter stage and upstream of the third, thereby reducing the installation space required and making all filter stages easily accessible for cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple filter stages are arranged in series with the drive unit, then the filtration effectiveness is improved, but the installation space required increases
Solution Approach 1:
The drive unit is positioned inside the flow path of the suction airflow, allowing the airflow to pass through and around the drive unit housing. This nesting arrangement enables the drive unit to occupy space that would otherwise be required for additional filter stages, thereby reducing the overall installation space while maintaining multiple filtration stages upstream of the drive unit.
Solution Approach 2:
The suction airflow is configured to flow around the drive unit housing in a three-dimensional path, entering through inlet openings, passing around the drive unit, and exiting through outlet openings. This spatial arrangement allows the drive unit to be integrated within the airflow path without requiring additional linear space for separate filter stage housings.
2Reliability
If multiple filter stages are arranged in series, then the separation capability is improved, but the accessibility of filter stages for cleaning becomes difficult
Solution Approach 1:
The vacuum cleaner is divided into modular components with the drive unit housed in a separate drive unit housing that can be independently accessed. The collection container and drive unit housing are designed as separable modules, allowing users to access and clean the drive unit filter without disassembling the entire vacuum cleaner, thereby maintaining filter separation capability while improving accessibility.
Solution Approach 2:
The drive unit is extracted into a separate accessible housing with dedicated inlet and outlet openings for the suction airflow. This extraction allows the drive unit filter to be accessed independently from the collection container, enabling users to clean the filter without emptying the collection container or disassembling the main body of the vacuum cleaner.
3Device complexity
If the drive unit is positioned upstream of all filter stages, then the structure is simplified, but the suction airflow cannot effectively surround the drive unit for compact design
Solution Approach 1:
Instead of positioning the drive unit upstream of all filter stages as in conventional designs, the drive unit is positioned downstream of the filter stages with the suction airflow passing through the filters first and then around the drive unit. This inverted arrangement allows the drive unit to be surrounded by the suction airflow, enabling a compact integrated design while maintaining effective filtration.
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 enables a compact design with effective separation capabilities and easy filter maintenance, ensuring efficient operation and extended performance of the vacuum cleaner.
Implementation Method 1
handheld cyclone vacuum cleaner with a separation unit (18) for collecting debris and a drive unit (5) for generating a suction airflow (19). The first filter stage (6) is a cyclone generated during operation
Implementation Method 2
the suction airflow forms a swirling current in the separation unit, which serves to separate dust and dirt particles from the suction airflow under the influence of gravity
Data Source
Figure 1
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AI summary
The invention relates to a hand-held cyclone vacuum cleaner (100) for cleaning and maintaining floor surfaces, comprising a drive unit (5) for generating a negative pressure for picking up material by means of a suction air stream (19), a separation unit (18) for separating material from the suction air stream (19), wherein the separation unit (18) comprises a drive unit (5) for generating a suction air stream (19), at least a first filter stage (6), a second filter stage (7) and a third filter stage (9);wherein the drive unit (5) is arranged downstream of the second filter stage (7) in the suction air stream (19) and upstream of the third filter stage (9) in the suction air stream (19) in a drive unit housing (15), wherein the generated suction air stream (19) first passes through the first filter stage (6), then the second filter stage (7) and finally a further filter stage (8), wherein the drive unit (5) is surrounded by the suction air stream (19) generated during operation of the drive unit (5), wherein the third filter stage (9) is arranged downstream of the further filter stage (8) in terms of flow characteristics and has an exhaust air filter element.