Nozzle for cleaner
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Solution Overview
Problem
Existing vacuum cleaner nozzles often experience hair and thread entanglement in the rotation cleaning part, leading to deteriorated performance and inadequate motor cooling.
Innovation Solution
A nozzle design featuring a housing with a chamber, a rotation cleaning part, a partition member, and a driving unit, where the partition member includes recessed areas to prevent entanglement and enhance motor cooling through air passage design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the motor is inserted into the brush bar (rotation cleaning part), then the structure is compact, but the motor cooling efficiency deteriorates
Solution Approach 1:
The chamber is divided into a first chamber accommodating the motor and a second chamber for the brush bar, with a partition wall separating them. This segmentation allows independent optimization of motor cooling and brush bar rotation functions while maintaining compact integration.
Solution Approach 2:
A partition wall with a through-hole acts as an intermediary structure between the motor chamber and brush bar chamber. The through-hole enables air flow to reach the motor for cooling while the partition wall maintains structural separation and compactness.
2Ease of operation
If the brush bar rotates to clean the floor, then cleaning function is provided, but hair and thread entanglement occurs
Solution Approach 1:
The through-hole in the partition wall extracts and redirects the air flow path to pass through the brush bar rotation area. This extracted air flow creates a clearing effect that removes hair and threads from the brush bar surface, preventing entanglement while maintaining cleaning function.
3Temperature
If air flow is directed through the brush bar area, then motor cooling improves, but cleaning performance may deteriorate
Solution Approach 1:
The air flow is directed locally through the specific area where the brush bar rotates, creating a localized cooling zone for the motor and a localized clearing zone for the brush bar. This local quality approach ensures that cleaning performance in other areas remains unaffected while achieving cooling and entanglement prevention goals.
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
Prevents hair and thread entanglement while improving motor cooling efficiency, ensuring effective cleaning and prolonged nozzle performance.
Implementation Method 1
a rotation cleaning part which is accommodated in the chamber and cleans a floor through a rotation operation
Implementation Method 2
cleaning is performed while dust in a floor or a carpet is scratched as the agitator is rotated
Implementation Method 3
upper passages formed above the rotation cleaning part are provided in the chamber, and portions of the partition member are recessed to define the upper passages
Data Source
AI summary
A nozzle includes: a housing having a chamber formed in the housing and a front opening formed on a front side of the housing; a rotation cleaning part accommodated in the chamber and to clean a floor; a partition member provided in the chamber to partition the chamber into two areas and of which at least a portion is in contact with the rotation cleaning part; a driving unit to rotate the rotation cleaning part; and a connection tube connected to the housing and configured to transfer air introduced through the front opening to a dust container of the cleaner, wherein a lower passage formed below the rotation cleaning part and an upper passage formed above the rotation cleaning part are provided in the chamber, and a portion of the partition member is recessed to define the upper passages.