Outdoor unit of air conditioning system

Abstract

An outdoor unit of an air conditioning system includes a compressor, an intake tube connected to an intake port of the compressor, a liquid-to-suction heat exchanger having an exhausting end connected to the intake tube, and an expansion valve connected to the liquid-to-suction heat exchanger. A disposition angle between an imaginary line connecting the intake tube to the liquid-to-suction heat exchanger and a central axis of the expansion valve is less than 90°.

1 . An outdoor unit of an air conditioning system, comprising: 
 a compressor;    an intake tube connected to an intake port of the compressor;    a liquid-to-suction heat exchanger having an exhausting end connected to the intake tube; and    an expansion valve connected to the liquid-to-suction heat exchanger,    wherein a disposition angle between an imaginary line connecting the intake tube to the liquid-to-suction heat exchanger and a central axis of the expansion valve is less than 90°.    
     
     
         2 . The outdoor unit according to  claim 1 , wherein the disposition angle is greater than 15°.  
     
     
         3 . The outdoor unit according to  claim 1 , further comprising a dryer connected to a bottom of the expansion valve.  
     
     
         4 . The outdoor unit according to  claim 1 , further comprising a dryer disposed on a common vertical line along which the expansion valve is disposed.  
     
     
         5 . The outdoor unit according to  claim 1 , wherein the intake tube extends from the compressor in a direction within 90° with respect to a central point of the compressor.  
     
     
         6 . The outdoor unit according to  claim 1 , wherein the expansion valve is a linear expansion valve.  
     
     
         7 . The outdoor unit according to  claim 1 , further comprising a dryer disposed under the expansion valve.  
     
     
         8 . The outdoor unit according to  claim 1 , wherein the liquid-to-suction heat exchanger and the expansion valve are vertically arranged in parallel with each other.  
     
     
         9 . The outdoor unit according to  claim 1 , wherein the intake tube extends from a top and bottom of the liquid-to-suction heat exchanger.  
     
     
         10 . The outdoor unit according to  claim 1 , wherein the liquid-to-suction heat exchanger has an intake end connected to a four-way valve for converting an operational mode.  
     
     
         11 . An outdoor unit of an air conditioning system, comprising: 
 a compressor;    an intake tube connected to an intake port of the compressor;    a liquid-to-suction heat exchanger having an exhausting end connected to the intake tube;    an linear expansion valve for expanding a refrigerant exhausted from an outdoor heat exchanger; and    an indoor passage connecting the linear expansion valve to the liquid-to-suction heat exchanger,    wherein a disposition angle between an imaginary line extending from the intake tube and an imaginary line connecting the liquid-to-suction heat exchanger to the linear expansion valve is in a range of 15-90°.    
     
     
         12 . The outdoor unit according to  claim 11 , wherein the liquid-to-suction heat exchanger functions to convert a liquid refrigerant into a gaseous refrigerant.  
     
     
         13 . The outdoor unit according to  claim 11 , wherein the linear expansion valve and/or the liquid-to-suction heat exchanger are/is vertically disposed.  
     
     
         14 . The outdoor unit according to  claim 11 , wherein the linear expansion valve is directly connected to a dryer.  
     
     
         15 . The outdoor unit according to  claim 11 , wherein the indoor passage is linearly formed in a horizontal direction.  
     
     
         16 . The outdoor unit according to  claim 11 , wherein the disposition angle is defined between the linear expansion valve and an upper portion of the liquid-to-suction heat exchanger.  
     
     
         17 . An outdoor unit of an air conditioning system, comprising: 
 an apparatus room defined by a barrier in an outer case of the outdoor unit;    a compressor disposed in the apparatus room;    an intake tube connected to an intake port of the compressor;    a liquid-to-suction heat exchanger having an exhausting end connected to the intake tube; and    an linear expansion valve connected to the liquid-to-suction heat exchanger,    wherein a disposition angle between an imaginary line connecting the intake tube to the liquid-to-suction heat exchanger and a central axis of the expansion valve is in a range of 15-90°.    
     
     
         18 . The outdoor unit according to  claim 17 , further comprising a dryer disposed on a common vertical line along which the expansion valve is disposed.  
     
     
         19 . The outdoor unit according to  claim 17 , wherein the linear expansion valve and/or the liquid-to-suction heat exchanger are/is vertically disposed.  
     
     
         20 . The outdoor unit according to  claim 17 , wherein the liquid-to-suction heat exchanger comprises inner and outer tubes and a flow direction of liquid in the inner tube is opposite to that in the outer tube.