COOLING FAN WITH BULGES ON THE INNER SIDE OF CASING WALLS
A cooling fan (F) includes a fan frame (1) and an impeller (2). The fan frame (1) includes a substrate (11), a sidewall (12) connected to the substrate (11), and a lid (13) connected to the sidewall (12) and opposite to the substrate (11). An air inlet (14) is formed in the lid (13). The substrate (...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A cooling fan (F) includes a fan frame (1) and an impeller (2). The fan frame (1) includes a substrate (11), a sidewall (12) connected to the substrate (11), and a lid (13) connected to the sidewall (12) and opposite to the substrate (11). An air inlet (14) is formed in the lid (13). The substrate (11), the sidewall (12), and the lid (13) together define at least one air outlet (15). The impeller (2) is rotatably mounted in the fan frame (1). A plurality of bulges (3) protrudes from an inner face (W) of the sidewall (12) and/or an inner face (W) of the lid (13). |
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