Patent ID: 8619423

Claim:
A fan module installed on a case of an electronic equipment or a household appliance and inputting an air into the case, comprising: a dust-collecting unit having a rotation region, at least one air-suction port and at least one air-discharge port, the at least one air-suction port and the at least one air-discharge port communicating with the rotation region; and a fan combined with the dust-collecting unit and inputting the air into the rotation region, wherein the dust-collecting unit comprises: a housing having the rotation region therein and open portions at a front end and a rear end thereof, the open portions communicating with the rotation region; a rotation inducing part combined with a front end of the rotation region and inducing the air to spirally rotate, the rotation inducing part including the at least one air-suction port; a guide wall combined with the housing without separation at a rear end of the rotation region and protruding toward a central axis along a longitudinal direction of the rotation region, the guide wall surrounding the at least one air-discharge port disposed coaxially with the central axis of the rotation region; and a dust-collecting box combined with the housing and collecting a dust rotating in the rotation region through one of a dust-collecting path connected to the housing and a dust-collecting hole formed on the housing.