| 摘要 |
A structure for utilizing generation of heat of air supply and exhaust motors of a ventilating device is provided to appropriately control heat generated from motors for air supply and exhaust fans by collecting the generated heat and discarding the heat to an exhaust system in case of cooling while supplying waste heat to an air supply system in case of heating, thereby improving heating efficiency. A closed state motor cover(10) contains a motor for an exhaust fan(50a) and a motor for an air supply fan(50b) on the inside, and collects heat generated in the motors on the inside in a state that the heat is cut off from the outside. A single direction damper(30) has one end connected with passages(40) connected with an exhaust system including the exhaust fan, and an air supply system including the air supply fan so that the single direction dampers induce heat generated in the motors in case of cooling or heating, in one direction.
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