Noise reduction-type impeller
AssigneeAmotech Co., Ltd.
InventorByung Soo KIM
Life of this patent
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Abstract
An impeller is arranged at a passage part through which air of a fan housing passes and includes a hub and a plurality of blades radially formed on the outer surface of the hub. The blade includes: a hub connection part connected to the hub; first and second side surface parts formed at opposite side surfaces of the hub connection part; and an outer surface part connected to the end parts of a second connection part and the first side surface part and arranged to have a gap part corresponding to a spacing from the inner surface of the passage part of the fan housing, and at least one of outer surface parts of the blades has a first area part whose gap part has a small area, and a second area part whose gap part has an area relatively larger than that of the first area part.
Claims10
A noise reduction-type impeller which is arranged at a passage part through which air of a fan housing passes, the impeller comprising:
- a hub;
- and a plurality of blades radially formed on the outer surface of the hub, wherein each of the blades comprises:
- a hub connection part connected to the hub;
- a first side surface part and a second side surface part formed at opposite side surfaces of the hub connection part;
- and an outer surface part connected to the end parts of a second connection part and the first side surface part and arranged to have a gap part which corresponds to a spacing from the inner surface of the passage part of the fan housing, and at least one of outer surface parts of the plurality of blades has a first area part, the gap part of which has a small area, and a second area part, the gap part of which has an area relatively larger than that of the first area part.
Dependencies are inferred from the claim text.