| 摘要 |
A cooling fan module is provided to reduce noise with decreasing a flow rate of air passing a central part of a fin and improve cooling performance by lengthening the central part of the pin parallel in an air flowing direction. A case(111) forms an inlet(112) to at least one of upper and lower surfaces, and forms an outlet(113) to one side. A fan(115) sucks air through the inlet and discharges the air through the outlet by being rotatively installed in the case. A frame(121) is combined to the case in a shape surrounding the outlet by having the shape corresponding to the outlet. A plurality of fins(125) is installed in the frame at intervals and a central part of the fin is projected to a fan side. A projected part(125a) of the fin is surrounded by a sub frame(121a).
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