Patent ID: 9341195
Filing Date: 2016-05-17
CPC Classification: F04D,G06F

Claim Text:
1. A centrifugal fan module, comprising: A fan housing including an air outlet and a sidewall, wherein the sidewall includes a dust-discharging hole; an impeller pivotally disposed in the fan housing to rotate along a rotational direction relative to the fan housing; and an air guiding structure formed as a wall having first and second ends, the first end being connected to the sidewall; wherein a tongue portion is formed between the sidewall and the impeller, the impeller being between the tongue portion and the dust-discharging hole; wherein a dust-discharging flow channel is formed between the air guiding structure and the sidewall, the dust-discharging flow channel having an exit end where air exits therefrom corresponding to the second end of the air guiding structure, wherein the exit end of the dust-discharging flow channel is adjacent to the air outlet of the fan housing and on the same side of the fan housing as the air outlet.