| 摘要 |
PROBLEM TO BE SOLVED: To prevent contact between a fixing nut of an exhaust fan and an exhaust filter without deteriorating exhaust performance.SOLUTION: A ventilation device includes: a body 100 having an exhaust inlet 10 on a front surface; a front surface panel 1 which is attached to the front surface of the body 100 so as to cover the exhaust inlet 10 through a space; an exhaust filter 21 which covers the exhaust inlet 10; and an exhaust blower 12 which is installed in the body 100 facing the exhaust filter 21. The exhaust blower 12 includes: an exhaust fan; a motor for driving the exhaust fan; and a fixing nut 31 which is disposed at a center part of a front surface of the exhaust fan and fixes the exhaust fan 28 to a shaft 30 of the motor 29. The exhaust filter 21 includes: at least an outer peripheral rib frame 24; a net filter 22 provided in a frame of the outer peripheral rib frame 24; and a protruding part 23 which is provided at a center part on the front surface side of the net filter 22 and has a cup shaped recess 23a at the rear surface side facing the fixing nut 31. |
