Separating unit for a suction device with a shielding ejection and/or compression element
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Solution Overview
Problem
Existing suction devices, particularly handheld vacuum cleaners, face challenges in maintaining reliable and convenient dirt compression and ejection from the collection container, leading to reduced suction power over extended use.
Innovation Solution
A separation unit with a cylindrical collection container and a movable ejection and/or compression element, designed to adjust radial force and distance along the longitudinal axis, combined with a helical air flow path to prevent dirt accumulation and ensure continuous high suction performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ejection and/or compression element is moved within the collection container to compress and eject dirt, then the suction power can be restored after prolonged use, but dirt particles may reach the rear side of the ejection element and impair its function
Solution Approach 1:
The patent extracts the harmful factor (dirt particles) from reaching the rear side of the ejection element by introducing a shielding element that blocks the path of dirt particles, thereby protecting the ejection element's functional surfaces from contamination
Solution Approach 2:
The shielding element acts as an intermediary between the dirt particles and the ejection element, preventing direct contact between dirt and the ejection element's rear side, thus maintaining the ejection element's functionality
2Power
If the suction air flow is introduced into the separation unit to flow in a cyclone-like manner, then the suction power is increased, but dirt particles may still reach the rear side of the ejection element
Solution Approach 1:
The shielding element removes the harmful effect of the cyclone flow by blocking dirt particles from reaching the ejection element's rear side, allowing the beneficial cyclone-like suction power to be maintained without the negative consequence of dirt accumulation
3Ease of operation
If the ejection element is designed to move along the longitudinal axis to compress dirt, then the dirt compression and ejection function is improved, but the structure becomes more complex
Solution Approach 1:
The ejection element is designed to perform multiple functions: it can move along the longitudinal axis to compress dirt, eject dirt through the second end face, and work in conjunction with the shielding element to protect itself from dirt accumulation, thereby reducing the need for additional separate 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
The solution enables reliable and efficient dirt compression and ejection, maintaining high suction power even after prolonged use by preventing dirt from reaching the ejection element and optimizing the air flow direction.
Implementation Method 1
the suction air flow is preferably introduced into the separation unit and/or guided within the separation unit in such a way that the suction air flow flows in a cyclone-like manner around the central filter unit of the separation unit
Implementation Method 2
The fan is designed to generate a suction air flow in order to suck contaminants through the suction mouth of the suction unit into the separation unit
Data Source
Figure 1
Figure 2a~2b
Figure 2c
AI summary
A separation unit (113) for a suction device (100) is described. The separation unit (113) comprises a collecting container for dirt particles enclosed by a housing wall (227), wherein the collecting container extends along a longitudinal axis (220). The separation unit (113) further comprises an ejection and/or compression element (240) which is designed to be moved within the collecting container from a basic position along the longitudinal axis (220) to a compression position in order to compress dirt particles arranged in the collecting container and/or to eject them from the collecting container. The separation unit (113) is designed such that the radial force with which the ejection and/or compression element (240) acts in the radial direction on the inside of the housing wall (227) is lower in the compression position than in the basic position.