Suction apparatus and separator unit for a suction apparatus with an obliquely positioned flow diversion
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Solution Overview
Problem
Existing suction apparatuses, particularly hand-held vacuum cleaners, face challenges in maintaining high suction power over extended use periods due to inefficiencies in airflow direction within the separator unit, leading to reduced performance.
Innovation Solution
The introduction of an obliquely positioned flow diversion mechanism within the separator unit, utilizing a flexible flap and diversion element to create a helical airflow around the longitudinal axis, enhancing suction power and separation efficiency by directing airflow in a cyclonic manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the suction airflow is introduced into the separator unit in a conventional manner, then the structure is simple, but the suction power decreases over extended use periods
Solution Approach 1:
The patent introduces a flow diversion element with an oblique surface that redirects the suction airflow in a helical/cyclonic pattern around the longitudinal axis of the separator unit. This curved flow path creates centrifugal forces that enhance the separation of dirt particles from the airflow, maintaining high suction power over extended use periods by preventing clogging and ensuring continuous efficient operation.
2Reliability
If the suction airflow flows directly through the separator unit, then the flow path is short and simple, but the separation efficiency is reduced
Solution Approach 1:
The flow diversion element creates a helical flow path around the longitudinal axis, utilizing centrifugal forces to separate dirt particles from the suction airflow. This curved flow pattern enhances separation efficiency by forcing particles outward against the separator walls while maintaining a manageable structural complexity through the use of a single oblique diversion surface.
Solution Approach 2:
The flow diversion element acts as an intermediary component that modifies the airflow pattern between the inlet and the separator chamber. By introducing this intermediate flow redirection mechanism, the patent achieves improved separation efficiency without requiring complete redesign of the entire separator unit structure.
3Productivity
If the normal vector of the diversion element surface is positioned perpendicular to the longitudinal axis, then the manufacturing is simple, but the airflow direction is not optimized
Solution Approach 1:
The patent optimizes the flow diversion by changing the orientation parameter of the diversion element surface, positioning its normal vector at an oblique angle relative to the longitudinal axis rather than perpendicular to it. This parameter change directs the suction airflow more effectively in the circumferential direction, enhancing separation performance. The oblique angle can be optimized during design to balance manufacturing precision requirements with airflow optimization goals.
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 maintains high suction power and separation efficiency by effectively moving dirt particles away from the inlet, allowing for prolonged operation without manual emptying of the collecting container.
Implementation Method 1
the separator unit is configured in such a manner that a suction airflow that is passing through the inlet opening into the collecting container has a flow direction running in the circumferential direction with regard to the longitudinal axis
Implementation Method 2
create a helical airflow around the longitudinal axis, enhancing suction power and separation efficiency by directing airflow in a cyclonic manner
Implementation Method 3
the normal vector of an obliquely positioned section of the surface of the diversion element can run in an oblique manner with respect to the longitudinal axis
Data Source
AI summary
A separator unit includes a collecting container enclosed by a housing wall, extending along a longitudinal axis, and having an inlet opening disposed on the housing wall for a suction airflow. The separator unit is configured in such a manner that a suction airflow that is passing through the inlet opening into the collecting container has a flow direction running in the circumferential direction with regard to the longitudinal axis. The separator unit includes a diversion element which is positioned downstream along the flow direction and has a surface which acts on the suction airflow. The normal vector of an obliquely positioned section of the surface of the diversion element runs in an oblique manner with respect to the longitudinal axis. A suction apparatus having the separator unit is also provided.