Ventilating Exhaust fan and Outlet Fitting Assembly

Abstract

A ventilating exhaust fan and outlet fitting assembly includes a ventilating exhaust fan and an outlet fitting. A packing protrusion is interposed between a ventilating exhaust fan and an outlet fitting of the assembly, and thereby the conventional issues of vibration and noise due to an unwanted gap existed between ventilating exhaust fan and the outlet fitting are effectively overcome.

1 . A ventilating exhaust fan and outlet fitting assembly, comprising:
 a ventilating exhaust fan including a fan unit, a driving motor configured for driving the fan unit, and a housing enclosing the fan unit and the driving motor, the housing defining an opening facing toward a fluid outlet of the fan unit and a plurality of fixing openings adjacent to the opening;   an outlet fitting substantially being a hollow structure and defining an outlet and an inlet, the outlet fitting including a mounting surface at the inlet and a plurality of latch tenons corresponding to the fixing openings and formed on the mounting surface; and   at least a packing protrusion interposed between the housing and the mounting surface of the outlet fitting;   wherein the outlet fitting is joined with the housing by the latch tenons inserted and latched into the fixing openings and is packed on the housing with the at least a packing protrusion.   
   
   
       2 . The ventilating exhaust fan and outlet fitting assembly according to  claim 1 , wherein the at least a packing protrusion each is formed on the mounting surface of the outlet fitting. 
   
   
       3 . The ventilating exhaust fan and outlet fitting assembly according to  claim 1 , wherein the at least a packing protrusion each is formed on the housing of the ventilating exhaust fan. 
   
   
       4 . The ventilating exhaust fan and outlet fitting assembly according to  claim 1 , wherein the at least a packing protrusion each is a pillar-shaped protrusion. 
   
   
       5 . The ventilating exhaust fan and outlet fitting assembly according to  claim 1 , wherein the at least a packing protrusion each is a strip-shaped protrusion. 
   
   
       6 . The ventilating exhaust fan and outlet fitting assembly according to  claim 1 , wherein the outlet fitting further comprises a flange formed at a side of the mounting surface thereof, the flange is engaged at an edge of the housing.