| 摘要 |
A pressure-boosting axial-flow heat-dissipating fan includes a housing and an impeller. The housing includes an annular wall including an air inlet in a first end thereof and an air outlet in a second end thereof. A base and a pressure-boosting device are mounted in the air outlet. The impeller is rotatably mounted to the base. The impeller includes a hub and a plurality of blades on an outer periphery of the hub. Two of the blades adjacent to each other partially overlap with each other along an axis parallel to a rotating axis of the impeller. The number of the blades on the impeller is increased such that the overall air-driving area of the blades is increased, improving the overall heat-dissipating efficiency.
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