Wet Duster Module Cooling Using Suction Passage Forced Convection
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Solution Overview
Problem
Conventional wet duster modules for cleaners face challenges in improving cooling efficiency without increasing the overall size, particularly due to limitations in cooling high-output drive motors which generate heat, and existing solutions that add separate cooling devices increase the module's size.
Innovation Solution
The wet duster module incorporates a design with a passage hole that communicates the suction passage and the inner space, facilitating forced convection of air to enhance cooling efficiency without a separate cooling module, allowing for the use of higher output drive motors while maintaining a compact size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a separate cooling device is installed to improve cooling efficiency, then cooling efficiency is improved, but the size of the wet duster module increases
Solution Approach 1:
The cooling function is merged with the existing suction passage structure. The suction passage is configured to serve dual purposes: transporting dust-containing air and providing cooling air flow to the drive motor. This eliminates the need for a separate cooling device while maintaining effective cooling of the high-output drive motor.
Solution Approach 2:
The suction passage is designed as a multi-functional component that simultaneously performs dust collection and motor cooling functions. By routing cooling air through the existing suction passage and utilizing the passage hole communication, the system achieves effective cooling without adding dedicated cooling components, thus avoiding size increase.
2Volume of stationary object
If natural convection cooling is used without a separate cooling structure, then the module size is kept compact, but cooling efficiency is insufficient for high-output drive motors
Solution Approach 1:
The suction system itself provides the cooling function by utilizing its own operational characteristics. The air flow generated during normal suction operation is directed through the passage hole into the motor cooling passage, allowing the system to cool itself without external assistance. This self-service approach maintains compact size while significantly improving cooling efficiency over passive natural convection.
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 increases cooling efficiency, enabling the use of higher output drive motors and contributing to the miniaturization of the wet duster module while maintaining performance.
Implementation Method 1
a passage hole that communicates the suction passage and the inner space of the module housing, thereby allowing forced convection of air in the inner space
Data Source
AI summary
The present invention relates to a wet duster module of a cleaner for sucking or wiping dust or foreign substance in an area to be cleaned by discharging water to a duster. The wet duster module of the cleaner according to the embodiment of the present disclosure can cause forced convection of the air in the inner space through the passage hole that communicates the suction passage and the inner space of the module housing without having a separate cooling module. Therefore, the cooling efficiency of the driving unit disposed in the inner space can be increased. Accordingly, this can not only contribute to the miniaturization of the wet duster module but also adopt the drive motor with higher output, thereby enabling high performance of the wet duster module.