| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiation structure in disk device which is capable of cooling and radiating the heat of heat generating parts on a printed circuit board within a casing and suppressing the generation of noises by the flow of air and is capable of preventing the intrusion of dust, etc., from the outside into the casing by radiating the heat without taking air from the outside into the casing. SOLUTION: The top surface of a clamper 4 disposed on the upper side of a turnable 3 of a loader 2 within the disk device 1 is projectingly provided with a shaft 5 and this shaft 5 is provided with an impeller 6. The right and left corners of a cap 7a of the casing 7 of the disk device 1 are provided with corner side guide pieces 8 and 8 curving to an outer side and the inside surface of the upper wall where the impeller 6 of the cap 7a exists is provided with a pair of central side guide pieces 9 and 9 curing toward an inner side. The impeller 6 is rotated across the shaft 5 by rotation of the clamper 4 rotating together with the turntable 3, by which the wind is generated. The flow of the wind is generated by the corner side guide pieces 8 and 8 and the central side guide pieces 9 and 9 and the heat generated from the heat generating parts on the printed circuit board P is cooled and radiated within the casing 7 by the flow of the air.
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