Patent ID: 7290270

Claim:
An optical disk apparatus comprising: vent holes; an exhaust hole; and an air current setting element, wherein: the vent holes and the exhaust hole in which a fan is provided are formed in a wall portion of a case body, in which a wiring board and a drive unit are held; the vent holes are positioned in front portions of both the left and right sides of the drive unit, the fan positioned at the back of the drive unit, an air current setting element adapted to guide the air current, which is sucked from the vent holes into the interior of the case body owing to a rotation of the fan, to the fan through an inner portion of the drive unit, and discharge the air current from the exhaust hole to the outside being provided; and the air current setting element including an air current setting plate which is added to a fan holder fixed to the case body and provided with the fan in the exhaust hole, and which is disposed in the interior of the case body, and a transformer as an electric part mounted on the wiring board and positioned in a clearance between the air current setting plate and the drive unit, the air current setting plate forming at the back of the drive unit an air reception port opposed to a rear surface of the drive unit, the transformer having a height substantially equal to that of the drive unit.