Fan Impeller Flow Guide Holes for Bidirectional Heat Dissipation
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Solution Overview
Problem
Conventional fan impeller structures suffer from poor airflow conduction and heat dissipation effects, leading to overheating and reduced lifespan of the motor set, and are direction-dependent.
Innovation Solution
The fan impeller structure incorporates an annular body with a top section, first bending sections, recesses, and flow guide holes that facilitate increased airflow into a receiving space, ensuring effective heat dissipation regardless of rotational direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If through holes are formed in the top section for heat dissipation, then heat dissipation function is provided, but airflow cannot be effectively conducted to the motor set
Solution Approach 1:
The top section is divided into multiple through holes (at least three) distributed across different regions, with each hole contributing to airflow conduction. This segmentation allows effective airflow distribution to the motor set while maintaining structural integrity and heat dissipation functionality.
Solution Approach 2:
The invention introduces a new spatial dimension by forming through holes that extend vertically through the top section, creating three-dimensional airflow pathways. This dimensional approach enables effective airflow conduction from the external environment directly to the motor set, resolving the insufficient airflow issue.
2Device complexity
If conventional fan impeller structure is used, then simple structure is maintained, but heat dissipation effect is poor leading to motor set damage
Solution Approach 1:
The top section is segmented into multiple through holes (at least three) positioned at different locations, enabling distributed airflow conduction to various parts of the motor set. This segmentation improves heat dissipation effectiveness and motor set reliability while maintaining relatively simple structural implementation.
Solution Approach 2:
Different regions of the top section are equipped with through holes to provide localized heat dissipation where needed. The recess is strategically positioned to receive airflow directly, creating local quality improvement in the heat dissipation effect at critical areas without complicating the overall structure.
3Ease of manufacture
If conventional flow guide structure is used, then manufacturing is simple, but airflow direction control is insufficient for bidirectional rotation
Solution Approach 1:
The flow guide structure incorporates asymmetric features including a recess positioned at one side of the top section and flow guide holes with specific directional orientations. This asymmetric design enables effective airflow conduction regardless of whether the fan rotates clockwise or counterclockwise, providing rotational direction adaptability while maintaining manufacturing simplicity.
Solution Approach 2:
The flow guide holes and recess are designed with curved surfaces that guide airflow smoothly in multiple directions. The curved geometry allows airflow to be effectively directed into the receiving space regardless of rotation direction, providing versatility while being manufacturable using conventional processes.
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
Enhanced airflow conduction and heat dissipation improve the motor set's temperature management, prolonging its lifespan and maintaining effective cooling regardless of rotational direction.
Implementation Method 1
airflow is forcedly conducted through the flow guide hole into the receiving space to dissipate the heat generated by the motor set
Data Source
AI summary
A fan impeller structure includes an annular body. The annular body has a top section and a receiving space. At least one first bending section is formed between the top section and the annular body. At least one recess is formed at the first bending section. At least one flow guide hole is formed between the first bending section and the recess in communication with the receiving space. In operation, the airflow conducted into the receiving space is increased. Moreover, no matter whether the fan impeller structure is clockwise rotated or counterclockwise rotated, the airflow can be conducted into the receiving space through the flow guide hole. Accordingly, the heat dissipation effect will not be affected by the rotational direction of the fan impeller structure.