Handheld Vacuum Cyclone Inlet Angle for Vertical Separation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing handheld vacuum cleaners face inefficiencies in air filtration due to suboptimal angles between the dirty air inlet and cyclonic chamber, which affect the orientation and effectiveness of the cyclonic separation process, particularly when operated in normal conditions.
Innovation Solution
The handheld vacuum cleaner design incorporates a cyclonic chamber with a separator axis oriented vertically by intersecting the dirty air inlet axis at an acute angle between 30 to 70 degrees, ensuring effective cyclonic separation when the vacuum is used with the inlet pointed downward, and includes a battery receptacle that intersects the separator axis, enhancing structural integrity and user accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the dirty air inlet is positioned at a conventional angle to the cyclonic chamber, then the structural design is simplified, but the cyclonic separation efficiency deteriorates when the vacuum is operated in normal conditions with inlet pointed downward
Solution Approach 1:
The patent applies parameter changes by optimizing the inlet angle to a specific range (30-70 degrees) relative to the separator axis. This angular parameter modification ensures that when the vacuum cleaner is held in normal operating position with inlet downward, the separator axis becomes substantially vertical, maximizing cyclonic separation efficiency without requiring complex additional mechanisms
2Productivity
If the separator axis is oriented vertically during normal operation, then the cyclonic separation performance is improved, but the inlet configuration becomes more complex
Solution Approach 1:
The patent employs asymmetry by positioning the dirty air inlet at an oblique angle (30-70 degrees) rather than symmetrically aligned with the separator axis. This asymmetric configuration, when combined with the vertical orientation requirement during normal use, creates the optimal airflow pattern for cyclonic separation while maintaining a relatively simple overall structure
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 the cyclonic separation efficiency and maintains the separator axis orientation vertically during use, enhancing the vacuum's performance and usability with improved structural integrity and user-friendly battery access.
Implementation Method 1
a cyclonic chamber in fluid communication with the dirty air inlet and the motor assembly. The cyclonic chamber defines a separator axis.
Implementation Method 2
cyclonic separation efficiency and maintains the separator axis orientation vertically during use
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A handheld vacuum cleaner (10), includes a main body (22), a motor assembly (114) positioned within the main body, and a dirty air inlet (14) positioned at a front of the handheld vacuum cleaner and extending along an inlet axis (46). The handheld vacuum cleaner also includes a cyclonic chamber (30) in fluid communication with the dirty air inlet and the motor assembly. The cyclonic chamber defines a separator axis (34). The inlet axis and the separator axis intersect to form an acute angle (214) extending between the dirty air inlet and the cyclonic chamber. The acute angle is within the range of 20 to 60 degrees such that when the handheld vacuum cleaner is operated in a normal operating condition with the dirty air inlet pointed downwardly the separator axis is oriented vertically.