VENTILATION FAN

摘要

A ventilation fan according to the invention comprises a fan module, a fire damper module and a cover module. The fan module comprises a housing having an air intake and an air outtake. The fire damper module is disposed in the air intake and comprises a fire damper body and an adjustment element. The fire damper body has a flange extending inwardly on the inner surface thereof and the flange has an opening. The adjustment element is disposed near the opening and on one closer side of the flange to the fan module. The cover module is disposed on the fire damper module.

主权项

1. A ventilation fan, comprising:
a fan module, comprising a housing having an air intake and an air outtake; a fire damper module, disposed in the air intake and comprising:
a fire damper body, having a flange extending inwardly on the inner surface thereof, wherein the flange has an opening; andan adjustment element, disposed near the opening and on one closer side of the flange to the fan module; and a cover module, disposed on the fire damper module.