Vacuum cleaner
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Solution Overview
Problem
Existing vacuum cleaners face issues with noise and wear due to axial forces applied to rotating brushes, and users, especially elderly people and children, find it difficult to couple and separate the brush module from the housing efficiently.
Innovation Solution
The vacuum cleaner design incorporates a system where the housing and brush module are coupled and separated through a button-activated mechanism with protrusions and elastic members, allowing for easy and secure attachment and detachment by distributing axial forces across multiple contact points, minimizing noise and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hook-coupling mechanism is used to attach the cleaning module to the housing, then the cleaning module can be detachably mounted, but gaps between components cause shaking and collision noise during operation
Solution Approach 1:
The coupling mechanism is divided into multiple coupling points (first coupling point with first protrusion and first recess, second coupling point with second protrusion and second recess) distributed along the axial direction. This segmentation distributes the axial force across multiple contact points, preventing shaking and collision at any single point, thereby eliminating noise while maintaining detachable mounting functionality.
2Ease of operation
If a hook-coupling mechanism with movable mounting is used, then the cleaning module can be easily attached and detached, but the coupling force is insufficient to resist axial forces during cleaning operation
Solution Approach 1:
The coupling force is segmented and distributed across multiple coupling points (first and second protrusions with corresponding recesses) positioned at different locations along the axial direction. This multi-point coupling distributes the axial force generated during cleaning operation, providing sufficient overall coupling strength while maintaining the simplicity of hook-based attachment and detachment.
Solution Approach 2:
The coupling mechanism utilizes both radial engagement (protrusions fitting into recesses) and axial positioning (multiple coupling points distributed along the axis). This multi-dimensional coupling approach enhances the coupling force in the axial direction while preserving ease of operation through simple hook manipulation.
3Ease of manufacture
If multiple gaps exist between the housing and cleaning module components, then the cleaning module can be easily assembled, but the housing shakes in the axial direction during use
Solution Approach 1:
The coupling interface is segmented into multiple discrete coupling points (first protrusion-first recess pair and second protrusion-second recess pair) positioned at different axial locations. This segmentation provides multiple stable contact points that prevent axial shaking while maintaining assembly simplicity, as the gaps between segments allow for easy engagement without requiring precise alignment throughout the entire interface.
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 design reduces noise and wear by distributing axial forces and simplifies the coupling and separation process, making it easier for users to handle the brush module, including elderly people and children.
Implementation Method 1
an elastic member, which pushes the protrusion in the movement path direction
Implementation Method 2
a button, which is movable in a third direction perpendicular to both the first direction and the direction of the rotation axis of the rotating brush
Data Source
AI summary
A vacuum cleaner is disclosed. The vacuum cleaner according to embodiments of the present disclosure includes a main body and a suction nozzle. The suction nozzle includes a housing, a button, a rotating brush, and a detachable cover. The housing includes an insertion hole. The button includes a first protrusion. The detachable cover includes a cover body and a slider. The cover body includes an insertion member, a second protrusion, and a rail. The rotating brush is rotatably mounted to the slider. The slider is mounted on the rail so as to be movable in a first direction. The insertion member is inserted into the insertion hole in the first direction. As the button is moved, the first protrusion is selectively positioned in a movement path in the first direction of the second protrusion.