Patent ID: 8400766

Claim:
A dust eliminator for a computer, comprising: a main body having an internal space and a ventilating hole; a heat-radiating fan provided in the internal space of the main body to form an air stream for exhausting heat in the main body to the outside; a cooling fin provided between the ventilating hole and the heat-radiating fan, the cooling fin exchanging heat with the air stream passing therethrough; a vibration-generating element transmitting vibration to the cooling fin to shake off dust accumulated on the cooling fin; a control unit in the main body; a power supplying unit for supplying the main body with power; a switch for selectively supplying power from the power supplying unit to the vibration-generating element according to a signal of the control unit; and a heat pipe contacting a surface of the cooling fin for transferring heat generated in a heat-generating component provided in the main body to the cooling fin, wherein the vibration-generating element is in contact with a surface of the cooling fin opposite to the surface of the cooling fin contacting the heat pipe, wherein a driving duration of the vibration-generating element and the number of times the vibration-generating element is driven are controlled by the control unit, and wherein the vibration-generating element is driven for a predetermined time from an initial time at which the main body is required to be powered off.