Cleaning apparatus
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Solution Overview
Problem
Existing cleaners have complex structures with a large number of parts, making it difficult to maintain filters and affecting suction efficiency due to dust accumulation, and require disassembly for filter access.
Innovation Solution
A cleaner design with a simplified structure featuring a single flow guide for both suction and exhaust passages, allowing for easy filter separation and maintenance, reducing the number of parts and maintaining airflow efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If separate structures are provided for guiding air from cyclone to motor and from motor to post motor filter, then air flow guidance is achieved, but the number of parts increases and structure becomes complicated
Solution Approach 1:
The dust container cover integrates multiple functions: it serves as both the cover for the dust container and as the air passage structure that guides air from the cyclone to the motor and from the motor to the post-motor filter. This merging of functions reduces the number of separate parts while maintaining reliable air flow guidance throughout the system.
Solution Approach 2:
The dust container cover is designed as a multi-functional component that simultaneously performs sealing, air guiding, and structural support functions. It includes integrated air passages that replace separate air guiding structures, making it a universal component that handles multiple tasks in the air flow path.
2Ease of operation
If pre motor filter is surrounded by housing and disposed between airflow generator and cyclone, then filtration is achieved, but filter access requires product disassembly
Solution Approach 1:
The dust container is divided into separable parts: the dust container body and the dust container cover. The pre-motor filter is attached to the cover, which can be easily removed from the body. This segmentation allows users to access the filter by simply separating the cover from the body without requiring full product disassembly, while the filter remains properly positioned for effective filtration.
3Volume of moving object
If multiple separate structures are used for air passages, then air flow control is precise, but the overall device size increases
Solution Approach 1:
Multiple air passage functions are merged into the dust container cover structure. The cover includes integrated passages that guide air from the cyclone to the motor and from the motor to the post-motor filter, eliminating the need for separate air passage components and reducing overall device size while maintaining precise air flow control.
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 cleaner achieves improved suction force and extended battery life with reduced airflow loss, while allowing for easy filter cleaning and maintenance without disassembling the unit.
Implementation Method 1
a first cyclone unit (110) that separates dust from air sucked by the suction force; a second cyclone unit (130) that separates dust from air received from the first cyclone unit (110)
Implementation Method 2
a suction motor (20) that generates suction force; an impeller (200) positioned at an upper portion in the suction motor (20)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention provides a cleaner comprising a suction motor (20) that generates suction force; an impeller (200) positioned at an upper portion in the suction motor (20); a first cyclone unit (110) that separates dust from air sucked by the suction force; a second cyclone unit (130) that separates dust from air received from the first cyclone unit (110); a motor housing (26, 27) covering at least the suction motor (20); a pre-filter (29) that surrounds an outer surface of the motor housing (26, 27); and air passage (232) that surrounds an outer surface of the pre-filter (29) and flows air discharged from the second cyclone unit (130) toward the suction motor (20).