Floor cleaner
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Solution Overview
Problem
Existing floor cleaners face challenges in maintaining effective filtration performance and extending filter life due to the complexity of cleaning and maintaining their filtration systems.
Innovation Solution
A compressible cylindrical filter design featuring multiple media layers and caps, with a frame that allows for easy compression and expansion, facilitating cleaning and maintenance by enabling the filter to be compressed for maintenance and returning to its original shape, thereby improving filtration efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional rigid filter design is used, then structural stability is maintained, but cleaning and maintenance become complex and difficult
Solution Approach 1:
The filter assembly is designed with compressible media layers that can dynamically change from an expanded operational state to a compressed cleaning state. The resilient material allows the filter to be compressed along the filter axis for easy cleaning while automatically returning to its original shape for normal filtration, transforming a static rigid structure into a dynamic adaptable system.
Solution Approach 2:
The filter media layers are made from resilient materials that can change their physical state between compressed and expanded configurations. This parameter change allows the same filter structure to accommodate both cleaning operations (compressed state) and normal filtration (expanded state), simplifying maintenance while maintaining structural integrity.
2Ease of repair
If the filter is made compressible for easy maintenance, then cleaning becomes simple, but structural stability may be compromised
Solution Approach 1:
Different parts of the filter assembly have different properties: the media layers are made resilient and compressible for ease of maintenance, while the end cap and annular cap provide rigid structural boundaries. This local differentiation allows the compressible portions to be easily maintained while the overall structure maintains stability through the rigid caps and frame.
Solution Approach 2:
The resilient material in the media layers acts as a built-in cushioning mechanism that absorbs stress and maintains structural integrity during compression and expansion cycles. This pre-engineered resilience ensures that repeated compression for cleaning does not compromise the overall structural stability of the filter assembly.
3Reliability
If multiple media layers are used to improve filtration, then filtration performance increases, but the filter becomes harder to clean
Solution Approach 1:
The multiple media layers are all made from resilient materials that can be uniformly compressed together as a single unit. This dynamic compressibility allows the multi-layer filtration system to be cleaned easily by compressing the entire assembly, overcoming the typical difficulty of cleaning multiple stacked filter layers.
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 compressible filter design enhances filtration performance and extends filter life by allowing for easy cleaning and maintenance, ensuring consistent airflow and debris removal during floor cleaning operations.
Implementation Method 1
The first media layer and the second media layer are compressible along the filter axis, between the end cap and the annular cap, and at least one of the first media layer and the second media layer is a resilient material.
Data Source
AI summary
A floor cleaner with an air inlet, an air outlet, a suction motor, and a filter. The filter includes a first media layer, a second media layer, an end cap, and an annular cap. The first media layer and the second media layer extend along a filter axis between the end cap and the annular cap. The filter is compressible along the filter axis between the end cap and the annular cap.