Cleaner
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Solution Overview
Problem
Existing handheld vacuum cleaners have complex structures with numerous parts, making it difficult to clean pre-motor filters and reducing suction efficiency due to dust accumulation, and require disassembly to access filters.
Innovation Solution
A cleaner design with a simplified structure featuring a single flow guide that forms both suction and exhaust passages for the suction motor, allowing for easy filter separation and maintenance, reducing airflow resistance, and improving suction force and battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate structures are used for guiding air discharged from the cyclone to the motor and for guiding air that has passed through the motor to the post motor filter, then the airflow paths are well-defined, but the number of parts increases and the structure becomes complicated
Solution Approach 1:
The patent combines the suction passage and exhaust passage guiding functions into a single integrated flow guide structure. This flow guide simultaneously directs air from the cyclone to the motor and guides air from the motor to the post motor filter, reducing the number of separate components while maintaining proper airflow path definition.
Solution Approach 2:
The flow guide structure performs multiple functions: it serves as both the suction passage guide and the exhaust passage guide. This multi-functional design eliminates the need for separate structures for each airflow path, simplifying the overall structure while ensuring reliable airflow management.
2Reliability
If the pre motor filter is disposed between the airflow generator and the cyclone and surrounded by a housing, then the filter is protected, but it requires disassembly of the product to access the filter for cleaning
Solution Approach 1:
The patent segments the vacuum cleaner into modular components, with the flow guide and filters designed as accessible units. The flow guide can be removed or opened to provide direct access to both the pre motor filter and post motor filter, allowing users to clean or replace filters without disassembling the entire product housing.
Solution Approach 2:
The flow guide acts as an intermediary structure that can be selectively removed or opened to provide access to the filters. This mediator component allows the filters to remain protected during normal operation while enabling easy access when maintenance is needed.
3Reliability
If multiple separate components are used for airflow guidance, then each component can be optimized for its specific function, but the overall device size increases and compactness is reduced
Solution Approach 1:
The patent merges the suction passage guide and exhaust passage guide into a single integrated flow guide structure. This combination maintains the functional optimization of separate airflow paths while significantly reducing the overall space required, thereby improving device compactness.
Solution Approach 2:
The flow guide structure is designed to nest within the existing housing space, with the suction and exhaust passages arranged in a nested or overlapping configuration. This allows both airflow paths to be optimized while minimizing the overall device volume.
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 suction efficiency, simplifies maintenance by allowing easy filter access, and extends battery life through reduced airflow loss and improved airflow path efficiency.
Implementation Method 1
a suction motor that generates suction force
Implementation Method 2
a dust separation unit that separates dust from air sucked by the suction force
Data Source
AI summary
A cleaner includes: a suction motor that generates suction force; a dust separation unit that separates dust from air sucked by the suction force; a motor housing that covers the suction motor; a flow guide that surrounds an outer side of the motor housing and guides air discharged from the dust separation unit to the suction motor; and a body that forms an external appearance by surrounding the flow guide and guides air discharged from the suction motor together with the flow guide.