Dust separation device and cleaner including same
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Solution Overview
Problem
Conventional vacuum cleaners face issues with dust entanglement and inconvenience due to hair or animal fur getting stuck in the dust collection device, leading to inefficient cleaning and maintenance.
Innovation Solution
A dust separation device with a rotating body that utilizes centrifugal force to separate dust, combined with a sealing member featuring a brush to prevent dust from entering the gap between the rotating and fixing bodies, reducing friction and improving durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a porous filter is used to filter out dirt in the dust collection device, then dust separation is achieved, but dust and hair become entangled in the filter requiring manual cleaning
Solution Approach 1:
The patent employs a rotating body with blocking members that rotate within the dust collection chamber. This dynamic structure allows dust to be separated through centrifugal force and gravity, while the rotation prevents hair and dust from becoming entangled in a stationary filter, eliminating the need for manual cleaning of entangled debris
Solution Approach 2:
The patent replaces the traditional porous filter mechanical system with a rotating body system that uses centrifugal force and gravity for dust separation. This substitution eliminates the filtration mechanism that causes entanglement while maintaining effective dust separation through physical separation forces
2Reliability
If the rotating body rotates close to the fixing body to maximize centrifugal force, then dust separation efficiency improves, but friction increases and dust can enter the gap
Solution Approach 1:
The patent introduces a sealing member as an intermediary element between the rotating body and the fixing body. This sealing member prevents dust from entering the gap while allowing the rotating body to maintain an optimal distance from the fixing body, balancing centrifugal force generation with reduced friction and dust contamination
3Reliability
If the gap between the rotating body and fixing body is reduced to prevent dust entry, then sealing improves, but friction increases during rotation
Solution Approach 1:
The sealing member acts as a mediator that provides effective dust sealing without requiring the rotating body to be in close contact with the fixing body. This intermediary structure maintains the necessary gap for rotation while preventing dust ingress, thus reducing friction losses
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 solution enhances dust separation efficiency and prevents dust from entering the gap, thereby improving the overall cleaning process and extending the device's lifespan by using centrifugal force and a carbon fiber brush for effective sealing.
Implementation Method 1
a rotating body rotatable inside the dust collection chamber and including a blocking member formed to block dust from the air flowing in from the air inlet
Implementation Method 2
a sealing member configured to seal at least a portion of a gap portion formed between the rotating body and the fixing body to prevent dust from entering the gap portion, the sealing member including a brush in contact with at least one of the rotating body and the fixing body
Data Source
AI summary
A dust separation device includes: an air inlet, a dust collection chamber to collect dust in air flowing in from an air inlet, a rotating body rotatable inside the dust collection chamber and including a blocking member formed to block dust from the air flowing in from the air inlet, a motor to rotate the rotating body, a fixing body arranged to be spaced apart from the rotating body and supporting the motor, and a sealing member configured to seal at least a portion of a gap portion formed between the rotating body and the fixing body to prevent dust from entering the gap portion, the sealing member including a brush in contact with at least one of the rotating body and the fixing body.