| 摘要 |
<p>PURPOSE:To automatically open/close the vent hole of an equipment main body by using the input of information or the turning for the display by providing the vent hole on the equipment main body, closing the vent hole at the unusing position of a turning means, turning to the using position and opening the vent hole. CONSTITUTION:An LCD case 1 is provide so as to turn with a shaft 5 as the rotation center. At the shaft 5, a shutter 6 is fitted by a screw 7. When the LCD case 1 is closed, a blowhole 8 is interrupted by the shutter 6, therefore, air is not distributed. When the LCD case 1 is opened in order to use the equipment, the blowhole 8 is not interrupted by the shutter 6, therefore, the air passes from a vent hole 11 through the side and the passage (b) of the shutter 6 and from a blowhole 9 to an external part. Thus, since the opening/closing of the vent hole can be automatically performed by the opening/closing of the turning member such as a display and a keyboard, the intrusion of litter and dust, etc., can be prevented and the life of internal parts can be prolonged by the heat radiation.</p> |
