Motorized vav linear diffuser

Abstract

The present disclosure relates to a motorized linear diffuser where an exit passage is installed along a ceiling of an interior while being connected to a duct of the interior for heating and air conditioning or ventilation. The present disclosure has been made in an effort to provide a motorized variable air volume (VAV) linear diffuser for heating and air conditioning or ventilation that can vary air volume by using a motor with a simple structure and at low costs, can be simply assembled and disassembled so that the linear diffuser can be installed or maintained and repaired in a simple way, and can maintain a sealing state when a passage is closed as well.

1 . A motorized VAV linear diffuser installed in an installing space of a chamber connected to a duct for heating and air conditioning or ventilation and including a frame having an elongated tub-shaped part where a passage for heating and air conditioning or ventilation is formed long lengthwise, the motorized VAV linear diffuser comprising:
 a reducer motor unit separably installed at one lengthwise side of the passage of the elongated tub-shaped part;   a pivotal blade installed in the passage of the elongated tub-shaped part to be pivotally connected to the reducer motor unit at one side thereof to open and close the passage or regulate an opening degree thereof;   a shaft holder installed at another side of the elongated tub-shaped part to pivotally support another side of the pivotal blade; and   an installing unit for separably installing the reducer motor unit, the pivotal blade, and the shaft holder within the chamber directly or together with the frame.   
     
     
         2 . The motorized VAV linear diffuser of  claim 1 , wherein the pivotal blade includes a blade body forming a framework thereof, a pair of side wall sealing members installed at opposite lengthwise ends of the blade body and formed of a resilient material for maintaining a sealing state of opposite sides thereof and reducing friction as well, and a pair of front/rear wall sealing members installed at opposite ends in a short axis direction of the blade body and formed of a resilient material for maintaining a sealing state with opposite side walls of the elongated tub-shaped part, and a pair of bosses formed of a resilient material to maintain a sealing state between the bosses and the pair of front/rear wall sealing members when the passage is closed are installed on opposite side walls of the elongated tub-shaped part. 
     
     
         3 . The motorized VAV linear diffuser of  claim 1 , further comprising:
 a position detection control unit for controlling a position of the pivotal blade to open and close the passage or regulate an opening degree thereof by controlling an angular position of the reducer motor unit and controlling a position of the pivotal blade to maintain a sealing state between the front/rear wall sealing members and the bosses when the passage is closed.   
     
     
         4 . The motorized VAV linear diffuser of  claim 2 , further comprising:
 a position detection control unit for controlling a position of the pivotal blade to open and close the passage or regulate an opening degree thereof by controlling an angular position of the reducer motor unit and controlling a position of the pivotal blade to maintain a sealing state between the front/rear wall sealing members and the bosses when the passage is closed.