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US 11,767,857 B2Granted
Cooling fan
AssigneeSunonwealth Electric Machine Industry Co., Ltd.
InventorsMohammed Abdelkareem Mostafa Amer, Alex Horng
Life of this patent
Estimating the term…
Abstract
A cooling fan includes a fan frame and an impeller. The fan frame includes a substrate, a sidewall connected to the substrate, and a lid connected to the sidewall and opposite to the substrate. An air inlet is formed in the lid. The substrate, the sidewall, and the lid together define at least one air outlet. The impeller is rotatably mounted in the fan frame. A plurality of bulges protrudes from an inner face of the sidewall and/or an inner face of the lid.
Claims16
A cooling fan comprising:
- a fan frame including a substrate, a sidewall connected to the substrate, and a lid connected to the sidewall and opposite to the substrate, wherein an air inlet is formed in the lid, and wherein the substrate, the sidewall, and the lid together define at least one air outlet;
- an impeller rotatably mounted in the fan frame;
- and
- a plurality of bulges protruding from an inner face of the sidewall and/or an inner face of the lid;
- wherein each of the plurality of bulges has a maximum width ranging between 1.25 and 1.5 mm.
2 more elements
Dependencies are inferred from the claim text.