Vacuum Cleaner Drum Brush Cooling Structure for Heat Dissipation
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Solution Overview
Problem
Vacuum cleaners with drum brushes face heat management issues due to the driver being installed inside, which generates heat and requires an efficient cooling solution to maintain performance.
Innovation Solution
A cooling structure is implemented within the cleaner, utilizing a suction chamber, inlet, and outlet duct to circulate outside air through the drum brush, with an impeller enhancing airflow, to effectively dissipate heat generated by the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the driver is installed inside the drum brush to reduce the size of the brush head, then the size of the brush head is reduced, but heat is generated inside the drum brush requiring cooling structures
Solution Approach 1:
The driver is nested inside the drum brush, with the drum brush rotatably enclosing the driver. This nesting arrangement allows the driver to be positioned within the existing drum brush structure, minimizing the overall brush head volume while maintaining driver functionality for driving the drum brush
Solution Approach 2:
A cooling structure is introduced as an intermediary system between the heat-generating driver and the external environment. The cooling structure includes air inlet paths and outlet paths that facilitate heat dissipation from the driver without requiring external cooling components, thus maintaining compact brush head dimensions while managing thermal generation
2Temperature
If a cooling structure is added to cool the driver inside the drum brush, then heat dissipation is improved, but the device complexity increases
Solution Approach 1:
The cooling structure is designed to perform multiple functions: it cools the driver, maintains compact brush head dimensions, and integrates with the existing drum brush and housing structure. The air inlet paths and outlet paths are configured to utilize existing structural elements, allowing the cooling function to be achieved without adding separate complex cooling systems
Solution Approach 2:
The cooling structure utilizes the natural airflow generated by the cleaner's operation to cool the driver. Air is drawn through inlet paths, passes over the driver to absorb heat, and exits through outlet paths without requiring additional fans or active cooling mechanisms. This self-service approach achieves effective cooling while minimizing structural complexity
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 solution enables rapid cooling of the drum brush, improving its operational efficiency and reducing the risk of overheating, thus enhancing the overall cleaning performance.
Implementation Method 1
negative pressure may be formed inside the suction chamber, outside air of the brush head may enter the brush head through the inlet by the negative pressure formed inside the suction chamber
Implementation Method 2
An impeller configured to improve a flow of air entered the inlet and passing through the inside of the drum brush may be provided inside the drum brush
Data Source
AI summary
A cleaner includes: a main body; a connection pipe having one end connectible to the main body; and a brush head connectible to an other end of the connection pipe The brush head includes: an suction inlet formed therein, a drum brush detachably installed inside the brush head, a driver configured to drive the drum brush; a suction chamber formed inside the brush head and communicating with the suction inlet; a first cover covering one side of the brush head, the first cover having an inlet formed therein and through which air enters inside of the drum brush is formed in the first cover; and a second cover covering an other side of the brush head to seal inside of the brush head, the second cover having an outlet duct formed therein through which air cooled the inside of the drum brush is discharged to the suction chamber.