Hand Vacuum Layout With Horizontal Cyclone for Better Ergonomics
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hand vacuum cleaners lack ergonomic design, leading to suboptimal hand feel and usability due to inefficient placement of components such as the suction motor, cyclone unit, and pre-motor filter, which affects airflow and clogging issues.
Innovation Solution
A hand vacuum cleaner design where the suction motor is positioned forward of the handle, the cyclone unit is oriented with its axis parallel to the inlet conduit axis, and a porous pre-motor filter media allows air to travel from the outer surface inward, providing improved ergonomics and reducing clogging by increasing the upstream filter surface area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the suction motor, cyclone unit, and pre-motor filter are positioned in conventional locations, then the device structure is simple, but the ergonomics and hand feel are suboptimal
Solution Approach 1:
The cyclone unit is reoriented from a conventional vertical arrangement to a horizontal arrangement, with the cyclone axis extending horizontally and being co-axial with the suction motor. This dimensional change allows for improved weight distribution and ergonomics in the hand vacuum cleaner.
Solution Approach 2:
The suction motor and cyclone unit are merged into a co-axial arrangement where the cyclone axis is co-axial with the suction motor axis. This integration simplifies the overall structure while improving ergonomics by consolidating components along a common axis.
2Duration of action of moving object
If a conventional filter media is used, then the device structure is simple, but clogging occurs reducing airflow duration
Solution Approach 1:
A porous pre-motor filter media is employed that allows air to travel from the outer surface inward through the porous structure. This increases the upstream filter surface area, reducing clogging and extending the duration of effective airflow without significantly complicating the filter structure.
Solution Approach 2:
The filter media utilizes a three-dimensional porous structure where air flows from the outer surface inward, effectively increasing the filter surface area from a two-dimensional plane to a volumetric structure. This extends airflow duration by distributing the filtration load across a larger effective area.
3Device complexity
If the inlet conduit axis is positioned above the cyclone axis, then the airflow path is simplified, but additional conduits are required
Solution Approach 1:
Instead of positioning the inlet conduit axis below or at the same level as the cyclone axis, the design inverts this arrangement by positioning the inlet conduit axis above the cyclone axis. This inversion simplifies the airflow path and allows for more direct air flow into the cyclone chamber.
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 design enhances ergonomics, improves hand feel, and extends the duration of use without significant airflow reduction due to clogging, while also simplifying the air flow path and reducing the need for additional conduits.
Implementation Method 1
a porous pre-motor filter media allows air to travel from the outer surface inward, providing improved ergonomics and reducing clogging by increasing the upstream filter surface area
Implementation Method 2
a cyclone unit comprising a cyclone chamber having a cyclone axis of rotation
Data Source
AI summary
A hand vacuum cleaner can include an air inlet conduit having an inlet conduit axis, a suction motor and fan assembly having a suction motor axis of rotation, and a cyclone unit comprising a cyclone chamber having a cyclone axis of rotation. The inlet conduit axis can be generally parallel to the cyclone axis and when the inlet conduit axis is horizontally disposed, the inlet conduit axis is positioned above the cyclone axis and a projection of the inlet conduit axis intersects the suction motor.