| 摘要 |
PROBLEM TO BE SOLVED: To form a heat dissipation chamber by ensuring liquid-tightness to the inside of a body casing, and to provide heat radiation structure for fully ensuring stiffness in the body casing.SOLUTION: An electronic device includes: a heat dissipation chamber that is formed by liquid-tightly separating the inside of the body casing with a partition 11, has an inlet air vent 11b and an outlet air vent 11a in the partition, and includes a heat dissipation portion; a cooling fan disposed in the heat dissipation chamber; an inlet that is provided in the body casing to introduce outside air into the heat dissipation chamber through the inlet air vent; and an outlet for discharging a blowing air flow by the cooling fan to the outside through the outlet air vent. An air channel 15 for allowing the inside of the heat dissipation chamber to communicate with the inlet extends from the inlet air vent through a sidewall 1c of the body casing. An area to the internal space of the body casing is liquid-tightly sealed by sealing walls 17, 18. A plurality of plate-shaped ribs 16 extending in the channel direction are disposed in a lateral direction of the inlet air vent within the air channel. |
