| 摘要 |
A heatsink fan structure includes an impeller having a hub provided with a pivot portion rotatably mounted on the pivot portion of the housing. The hub of the impeller has a periphery provided with multiple blades that are arranged in a radiating manner. A circular fixing frame is mounted on an outer periphery of the blades. The fixing frame has a permanent magnet. The upper and lower ends of each of the blades are not protruded from the fixing frame.
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