| 摘要 |
PROBLEM TO BE SOLVED: To suppress running costs by making a drive state of projector cases variable in accordance with an operation state of projectors even when the projector cases are electrically independent on the projectors.SOLUTION: A projector case 1 comprises: a case main body 2 that covers a projector 100; a ventilation port 3 that faces a ventilation part 103 of the projector 100; an exhaust port 4 that faces an exhaust part 104 of the projector 100; an exhaust fan 6 that is provided at a position facing the exhaust port 4; a partition part 7 that is provided within the case main body 2 so as to partition a first space H1 including the ventilation port 3 and a second space H2 including the exhaust port 4 and the exhaust fan 6; a detection part 8 that is for detecting an operation state of the projector 100; and a control unit 9 that controls the exhaust fan 6 on the basis of a detection result of the detection part 8. The control unit 9 drives the exhaust fan 6 when the projector 100 is in operation, and when it is determined that the projector 100 is in a shutdown, causes the exhaust fan 6 to shut down. |
