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|1. (WO2018220697) DUCT CONNECTION PORT AND VENTILATION DEVICE|
|Applicants:||MITSUBISHI ELECTRIC CORPORATION
|Title:||DUCT CONNECTION PORT AND VENTILATION DEVICE|
Provided is a duct connection port (22) which is attached to a heat exchange ventilator serving as a ventilation device, and to which a duct for ventilation is connected, the duct connection port (22) comprising: an outer shell having cylindrical portions (22b, 22c, 22d) to which the duct is connected; and an inner shell (22h) that is provided on the inside of cylindrical portions (22c, 22d) constituting a part of the outer shell, with a space therefrom, and forms a ventilation flow passage, wherein the inner shell (22h) and the cylindrical portions (22b, 22c, 22d) constituting the outer shell form an integral structure.