Vacuum Filter Housing Layout for Compact Impact-Protected Filtration
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Solution Overview
Problem
Existing surface cleaning apparatuses, such as vacuum cleaners, face challenges in compact design and effective protection of air treatment components from impacts, while maintaining efficient airflow and filtration.
Innovation Solution
A surface cleaning apparatus with a cyclone bin assembly removably mounted in a central cavity between opposing sidewalls, featuring side wheels with a primary axis of rotation, a post-motor filter housing positioned between the sidewalls, and stabilizer wheels that ensure only one contacts the ground at a time, reducing size and protecting components from impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the filter housing is positioned within the diameter of the side wheels and the air treatment member is mounted in the central cavity between sidewalls, then the overall size of the apparatus is reduced and component protection is improved, but the airflow path and component accessibility may be compromised
Solution Approach 1:
The filter housing is nested within the diameter of the side wheels, and the air treatment member is nested within the central cavity between the sidewalls. This nesting arrangement allows multiple components to occupy overlapping or adjacent spatial zones, reducing the overall envelope of the apparatus while maintaining functional integrity
Solution Approach 2:
The apparatus transitions from a conventional linear arrangement to a three-dimensional configuration where the filter housing extends in multiple directions, with portions positioned within the side wheel diameters and the air treatment member integrated into the central cavity, effectively utilizing volumetric space rather than just linear dimensions
2Object-affected harmful factors
If the sidewalls are made large enough to cover the transverse faces of the air treatment member, then protection from side impacts is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The sidewalls serve multiple functions simultaneously: they provide structural support for the central cavity, protect the air treatment member from side impacts by covering its transverse faces, and contribute to the overall frame rigidity. This multi-functionality reduces the need for additional protective components that would increase complexity
3Volume of moving object
If the stabilizer wheels are configured so that only one contacts the ground at a time, then the apparatus size is reduced and stability is improved, but the mechanical complexity of the wheel assembly increases
Solution Approach 1:
The stabilizer wheel assembly is designed with dynamic characteristics, allowing the stabilizer wheels to pivot or adjust their contact status with the ground based on the apparatus orientation and terrain. This dynamic configuration enables only one stabilizer wheel to contact the ground at a time, optimizing stability while minimizing the required apparatus size
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 enhances the compactness of the apparatus, protects air treatment and filter components from side impacts, and maintains efficient airflow and filtration, allowing for easy access to internal components and improved stability during use.
Implementation Method 1
The rotation of the air in the cyclone results in some of the particulate matter in the airflow stream being disentrained from the airflow stream
Implementation Method 2
One or more additional cyclonic cleaning stages and/or filters may be positioned downstream from the cyclone
Data Source
AI summary
A surface cleaning apparatus comprises an air flow path extending from a dirty air inlet to a clean air outlet, an air treatment member, a suction motor and a filter housing. The surface cleaning apparatus may also comprise a main body comprising a front end, a rear end and a central portion. The air treatment member may be removably mounted to the central portion. A pair of spaced apart main wheels may be mounted to the main body on either side of the central portion and may have an axis of rotation. The filter housing may be located in the central portion forward or rearward of the air treatment member.