Vacuum Cleaner Filter Bag Chamber for Uniform Dust Filling
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Solution Overview
Problem
Conventional vacuum cleaner devices are unable to fully utilize the dust holding capacity, separation performance, and service life of flat non-woven filter bags due to their design, which restricts the filter bag's expansion and leads to uneven filling and suction operation.
Innovation Solution
A vacuum cleaner device with a filter bag receiving space designed to allow the filter bag to expand freely, ensuring optimal utilization of its surface area and properties, featuring a chamber with dimensions that allow the filter bag to reach its maximum size, and optionally incorporating curved surfaces or ribs to enhance airflow and prevent filter material from being compressed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter bag receiving space has rigid walls with a predetermined opening area, then the filter bag can be inserted and secured in the vacuum cleaner device, but the filter bag's expansion is restricted and uneven filling occurs
Solution Approach 1:
The filter bag receiving space is designed with a flexible wall that can deform elastically when the filter bag expands. This dynamic adaptation allows the receiving space to accommodate the filter bag's full expansion while maintaining secure insertion, resolving the contradiction between reliable securing and optimal dust holding capacity utilization.
Solution Approach 2:
The wall material of the filter bag receiving space is changed from rigid to elastic, allowing it to change its physical state and deform under the expansion force of the filter bag. This parameter change enables the receiving space to adapt its volume and shape to match the filter bag's expansion, ensuring both secure insertion and optimal utilization of the filter bag's dust holding capacity.
2Device complexity
If conventional vacuum cleaner device design is used, then the device structure is simple and compact, but the filter bag cannot expand freely leading to uneven filling and reduced service life
Solution Approach 1:
The wall of the filter bag receiving space is designed with elastic properties, changing its mechanical parameter from rigid to flexible. This allows the wall to deform and adapt to the filter bag's expansion during operation, enabling free expansion and uniform filling without complicating the overall device structure, thereby extending filter bag service life.
3Volume of moving object
If the filter bag is inserted in a folded state to fit compact packaging, then the device dimensions are minimized, but the filter surface is covered and dust holding capacity is not optimally utilized
Solution Approach 1:
The elastic wall of the filter bag receiving space dynamically expands to accommodate the fully unfolded filter bag, maximizing the filter surface area exposure. This dynamic adaptation allows the device to maintain compact dimensions when the filter bag is inserted in a folded state while ensuring optimal dust holding capacity utilization when the filter bag expands during operation.
Data Source
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AI summary
The vacuum cleaning apparatus (200) has a filter bag receiving space (210) having rigid walls, which is closed by a flap opening with a predetermined opening surface. A filter bag made of non-woven fabric material, is inserted into the filter bag receiving space. The ratio of the surface of a rectangular opening area bag receiving space at the housing portion and the surface area of the filter bag is greater than 0.70, preferably greater than 0.85, and most preferably greater than 1.0. An independent claim is included for method for inserting filter bag into filter bag receiving space.