Segmented Impeller Blade Design for Low-Noise Fan Cooling

The impeller blade is divided into multiple independent blade segments (first blade segment, second blade segment, third blade segment) that are not rigidly connected. This segmentation allows each segment to independently optimize airflow patterns, achieving better heat dissipation performance at lower rotation speeds, thus reducing noise while maintaining productivity.

The patent introduces a new spatial dimension by positioning blade segments at different radial distances from the rotation axis and at different angular positions. This multi-dimensional arrangement optimizes air intake and exhaust paths, enabling efficient heat dissipation at lower speeds and reducing the need for high-speed operation that generates noise.

The impeller is segmented into multiple blade sections (first, second, and third blade segments) with different orientations and positions. This segmentation creates optimized airflow channels that improve air pressure and volume generation at lower rotation speeds, achieving the desired power output without increasing noise.

The non-contact connecting member acts as an intermediary that maintains the relative positions of blade segments while allowing independent movement. This intermediary structure enables the blade segments to work together to generate required air pressure and volume while minimizing turbulent flow and noise.

The impeller blade is divided into multiple segments positioned at different radial and angular locations. This segmentation creates multiple airflow paths that collectively deliver the required air volume at lower rotation speeds, reducing noise while maintaining productivity.

The patent employs blade segments arranged in multiple dimensions (different radial distances and angular positions), creating a three-dimensional airflow optimization that achieves target air volume at lower speeds, thereby reducing noise without compromising productivity.