Patent ID: 8125778
Filing Date: 2012-02-28
Classification: H05K

Abstract:
1. A device for air-cooling an electronic apparatus, comprising: a housing provided with a hole for suction air and a discharge opening for discharge air; a heat-producing body provided in the housing; a fan for generating an airflow from the hole to the discharge opening, heat produced by the heat-producing body being released to an outside of the housing by the airflow; and a dustproof unit sealing the hole and including a plurality of air introduction plates, a plurality of projections being formed on surfaces of the air introduction plates, wherein a suction opening to receive airflow is formed between edges of adjacent air introduction plates, wherein the air introduction plates are inclined to change a direction of the airflow entering via the suction opening, wherein the fan is arranged downstream of the airflow relative to the air introduction plates, wherein the projections formed on the surfaces of the air introduction plates on a side of the suction opening are extended in a direction of the suction opening, and wherein the projections formed on the surfaces of the air introduction plates on an opposite side of the suction opening are extended in an opposite direction of the suction opening.