Hand Vacuum Layout With Vertical Motor and Porous Handle Filter
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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 chamber, 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 chamber axis is parallel to the suction motor axis, and a longitudinally extending porous pre-motor filter media allows air to travel upwardly to the suction motor, improving 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 chamber, and pre-motor filter are placed in conventional positions, then the device structure is simple, but the ergonomics and hand feel are suboptimal
Solution Approach 1:
The patent repositions the suction motor from a conventional horizontal arrangement to a vertical orientation above the cyclone chamber, and places the pre-motor filter in the handle rather than in the main body. This spatial reconfiguration across different dimensions optimizes the center of gravity and component distribution, thereby improving ergonomics and hand feel without significantly increasing structural complexity
2Duration of action of moving object
If a conventional filter is used, then the device structure is simple, but clogging occurs rapidly reducing airflow duration
Solution Approach 1:
The patent employs a porous pre-motor filter made of foam or felt material that allows air to pass through while trapping particles. This porous structure provides extensive surface area for filtration, delaying clogging and maintaining airflow duration, while keeping the filter structure relatively simple and integrated into the handle assembly
3Ease of operation
If the suction motor is positioned rearward, then the airflow path is short, but the hand feel and ergonomics are poor
Solution Approach 1:
The suction motor is positioned vertically above the cyclone chamber rather than horizontally rearward, creating a compact vertical airflow path. This dimensional change allows the motor to be closer to the user's hand, improving hand feel and ergonomics, while the vertical arrangement maintains an efficient airflow path length through the cyclone and filter systems
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, as the porous filter media functions as a conduit for filtered air to the suction motor.
Implementation Method 1
a longitudinally extending porous pre-motor filter media allowing air to travel upwardly to the suction motor
Implementation Method 2
a cyclone chamber having a cyclone axis of rotation
Data Source
AI summary
A hand vacuum cleaner wherein the suction motor axis of rotation is generally parallel to the central longitudinal axis and when the hand vacuum cleaner is oriented with the upper end above the lower end, the suction motor axis of rotation is positioned above the central longitudinal axis.