Patent ID: 7046513
Filing Date: 2006-05-16
Classification: H05K

Abstract:
1. A cooling structure for electronic devices wherein a plurality of electronic device accommodating boxes, in which electronic devices are accommodated, are disposed in a casing in multiple stages, a vent portion which allows ventilation between the inside and the outside of the casing is formed in a ceiling of the casing, in a first accommodating portion for accommodating the first electronic device accommodating box which is defined at the stage close to the ceiling, a hollow duct having two opening faces is arranged, the first opening face faces the vent portion, the second opening face faces a second accommodating portion for accommodating the second electronic device accommodating box which is defined at the stage remote from the ceiling, air inside the second electronic device accommodating box which is accommodated in the second accommodating portion is discharged outside the casing from the vent portion through the inside of the duct, and air inside the first electronic device accommodating box which is accommodated in the first accommodating portion is discharged to the outside of the casing from the vent portion along an outer wall surface of the duct.