Centrifugal fan and terminal
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United States of America Patent
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Aug 8, 2023
Grant Date -
N/A
app pub date -
Aug 20, 2021
filing date -
Feb 20, 2019
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Abstract
A centrifugal fan includes a housing configured to accommodate an impeller. The impeller rotates relative to the housing. A flow channel that cooperates with the impeller is disposed in the housing. The flow channel includes a pressurization area, in which a static pressure and a flow velocity of an air flow are gradually increased along a rotation direction of the impeller. However, an air inlet is disposed on the housing, and there is a specific gap between the impeller and the air inlet. As a result, when air flows through the pressurization area, there is a specific amount of leakage through the gap. Therefore, an air baffle ring is disposed in the centrifugal fan provided in this application.
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