Cleaner Suction Guide with Rotatable Flap to Reduce Flow Path Bending
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Solution Overview
Problem
Existing cleaners suffer from reduced suction performance due to bent flow paths and clogging caused by foreign substances colliding within the cyclone unit, leading to inefficient dust collection.
Innovation Solution
A cleaner design featuring a suction guide and rotatable flap in the connection pipe to minimize flow path bending and reduce collisions, improving airflow alignment and reducing clogging by using a guide duct with a ribbed structure and a parallel extension line configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the suction port direction and inlet connection direction are not aligned, then the cleaner can be manufactured with easier assembly, but the flow path bends inside the upstream cyclone causing deteriorated suction performance
Solution Approach 1:
The connection pipe is divided into multiple sections with different functions: a first connection portion that aligns with the suction port, a second connection portion that connects to the cyclone, and a guide duct that bridges them. This segmentation allows each portion to be optimized for its specific function while maintaining overall assembly ease.
Solution Approach 2:
The guide duct acts as an intermediary element between the suction port connection and the cyclone inlet connection. It provides a transition path that reduces flow direction changes while maintaining the structural flexibility needed for easy assembly.
2Volume of moving object
If the flow path is bent inside the upstream cyclone, then the device structure can be more compact, but fluids collide and block the inlet causing deteriorated suction performance
Solution Approach 1:
The guide duct incorporates curved surfaces and rounded transitions instead of sharp angles to guide fluid flow smoothly from the suction port direction to the cyclone inlet direction. This curvature reduces flow separation and prevents fluid collision while maintaining compact dimensions.
3Productivity
If a guide duct with rotatable flap is added to improve flow alignment, then suction performance improves, but device complexity increases
Solution Approach 1:
A rotatable flap is incorporated into the guide duct that can adjust its angle to optimize flow alignment. This dynamic element allows the structure to adapt to different operating conditions and maintain optimal performance while using a relatively simple mechanical adjustment mechanism.
Solution Approach 2:
The guide duct with rotatable flap serves multiple functions: it guides fluid flow, adjusts flow direction, and can potentially accommodate different suction port configurations. This multi-functionality justifies the added complexity by providing several benefits from a single integrated component.
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 enhances suction performance by minimizing flow loss and clogging, maintaining the cleaner's external structure while improving dust separation efficiency.
Implementation Method 1
a suction motor provided in the main body to generate a suction force
Implementation Method 2
a cyclone unit that separates dust from air using a cyclone flow
Data Source
AI summary
A cleaner includes: a main body for separating dust from air suctioned through an opening; a suction motor generating suction force; and a suction part coupled to the opening part and having a connection pipe for guiding the air to the main body. The main body includes a suction guide coupled to one side of the connection pipe including a guide duct having a rotatable flap provided thereto. The suction guide is connected to the guide duct. A suction duct includes: a first surface, where the flap is installed; and a second surface facing the first surface. A second extension line of the second surface forms a first angle with a first extension line of one surface, of the suction guide, connected to the second surface. The first extension line and a third extension line of the flap form a second angle equivalent to or smaller than the first angle.