Vacuum Cleaner Direct Coupling Design to Reduce Air Flow Loss
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Solution Overview
Problem
Vacuum cleaners experience reduced suction force due to air flow loss caused by friction in the introduction pipe, leading to a decrease in the amount of air introduced into the dust separating device.
Innovation Solution
A vacuum cleaner design featuring a suction hose with a coupling unit that aligns with the suction port, reducing air flow resistance by minimizing the length of the air flow path and using sealing members made of elastic material to ensure an airtight connection, along with a cover member that rotates to expose only a portion of the dust container for easy dust collection confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the introduction pipe is used to guide air from the suction nozzle to the dust separating device, then the vacuum cleaner structure is established, but air flow loss due to friction occurs and suction force is reduced
Solution Approach 1:
The patent removes the introduction pipe from the system and replaces it with a direct connection structure where the suction nozzle is coupled to the dust separating device without an intermediate pipe, thereby eliminating the source of frictional air flow loss
Solution Approach 2:
The suction nozzle and dust separating device are merged into a more integrated configuration where the air flow path is shortened and direct coupling is achieved, reducing the number of separate components and connection interfaces
2Ease of operation
If the introduction pipe is used to connect the suction nozzle and dust separating device, then the components can be connected, but the flowing amount of air is reduced and suction force decreases
Solution Approach 1:
The introduction pipe is extracted from the system and replaced with a direct coupling mechanism between the suction nozzle and dust separating device, eliminating the flow resistance introduced by the pipe while maintaining component connectivity
3Object-affected harmful factors
If the cover member covers the dust container completely, then dust is contained, but user confirmation of dust accumulation is difficult
Solution Approach 1:
The cover member is designed with a transparent window or opening at a specific location, providing local transparency that allows users to observe dust accumulation through the otherwise opaque cover, maintaining dust containment while enabling visual inspection
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 design enhances suction efficiency by minimizing air flow loss and improving airtightness, allowing for better dust collection and easier user confirmation of dust accumulation, while also improving the vacuum cleaner's stability and mobility.
Implementation Method 1
a suction motor that is configured to generate suction force
Implementation Method 2
using sealing members made of elastic material to ensure an airtight connection
Data Source
AI summary
A vacuum cleaner that includes: a suction hose; and a cleaner main body including: a main body portion, a suction motor that is configured to generate suction force, a dust container that includes (i) a storage space to collect dust and (ii) a suction port through which dust is collected from the suction hose into the storage space, and a cover member (i) that is configured to rotate, about an axis that is outside of a plane of the cover member, between a first position and a second position, (ii) that covers, based on the cover member being located at the first position, at least a portion of the dust container, and (iii) that includes a coupling unit that couples the suction hose to the suction port, wherein, based on the cover member being located at the first position, the coupling unit aligns with the suction port is disclosed.