Air control module

摘要

A damper blade is moved within an air control module connected to the discharge of a high-velocity blower, thereby modulating the electric power consumption of the blower motor.

主权项

1. A method for mechanically modulating electric power consumption of a blower motor associated with a ventilation unit, said method comprising:
determining in a processor a volumetric airflow requirement based on sensor data and on at least one control signal related to the sensor data; selecting for a damper blade associated with said ventilation unit a modulated flow position corresponding to the volumetric airflow requirement; generating in said processor a command signal corresponding to the modulated flow position; and adjusting said damper blade in response to the command signal by pivoting said damper blade within a casing enclosing a flow passage, thereby modulating electric power consumption of said blower motor; wherein a broadest surface of the damper blade has a generally rectangular shape with rounded corners and has a height and width that substantially corresponds to a height and width of the flow passage; wherein selecting a modulated flow position includes selecting a position from a range of positions between a first position corresponding to a maximum flow of said blower, and a second position in which said damper blade is pivoted to stand perpendicular to said flow passage; and wherein in the second position the damper blade obstructs about 84% of the flow passage, the rounded corners of the damper blade permitting the flow passage to remain about 16% unobstructed when the damper blade is in the second position.