Ventilation unit of building

The utility model relates to a ventilation unit of building, its characterized in that: setting up wind speed monitoring mechanism at the top of building, setting up electronic exterior window at the outer facade of building, wind speed monitoring mechanism has wind speed signal and wind direction signal detection end, the signal output part connection automatic control system's of wind speed monitoring mechanism signal input part, the control input end of electronic exterior window and the control input end of wind speed monitoring mechanism are connected to automatic control system's control signal output, control system produces the control end that control signal exported electronic exterior window, forms the natural wind and lets in the indoor regulation and control structure of building to change the drag distribution of the resistance part on the building ventilation route. The utility model discloses the outstanding beneficial effect such as validity that have control convenience, simple structure, as