Air conditioning system for vehicle

Abstract

An air conditioning system for a vehicle is provided. The system includes a cooling duct and a heating duct provided as spaces partitioned by a partition wall and an evaporator core and an inner condenser disposed respectively in the cooling and heating ducts. An outer condenser is connected to the inner condenser and the evaporator core via one refrigerant passage. An air volume regulation door is disposed upstream of the evaporator core and the inner condenser in an air flow direction, and a common blower is disposed at one side of the cooling and heating ducts to simultaneously form an air flow in the cooling and heating ducts.

What is claimed is: 
     
         1 . An air conditioning system for a vehicle, comprising:
 a cooling duct and a heating duct provided as spaces partitioned by a partition wall and arranged to be adjacent to each other, each having an inlet, an interior outlet, and an exterior outlet;   an evaporator core and an inner condenser disposed respectively in the cooling and heating ducts;   an outer condenser disposed extraneous to the heating duct and connected to the inner condenser and the evaporator core via one refrigerant passage;   an air volume regulation door disposed on the partition wall that partitions the cooling and heating ducts while being arranged upstream of the evaporator core and the inner condenser in an air flow direction; and   a common blower disposed at one side of the cooling and heating ducts to simultaneously form an air flow in the cooling and heating ducts.   
     
     
         2 . The air conditioning system according to  claim 1 , wherein the inner condenser is an air-cooled condenser and the outer condenser is a water-cooled condenser. 
     
     
         3 . The air conditioning system according to  claim 1 , wherein a compressor and an expansion valve are connected to each other on the refrigerant passage. 
     
     
         4 . The air conditioning system according to  claim 2 , wherein a compressor and an expansion valve are connected to each other on the refrigerant passage;
 wherein the refrigerant passage includes:
 a cooling circulation passage in which a refrigerant is circulated through the evaporator core, the compressor, a first branch point, the outer condenser, a second branch point, the inner condenser, and the expansion valve; and 
 a heating circulation passage in which a refrigerant is branched from the first branch point to flow into the second branch point. 
   
     
     
         5 . The air conditioning system according to  claim 4 , wherein the first branch point and the second branch point are respectively provided with a first 3-way valve and a second 3-way valve. 
     
     
         6 . The air conditioning system according to  claim 1 , further comprising:
 a cooling-side exhaust regulation door disposed between the interior and exterior outlets of the cooling duct to regulate an outflow amount of air; and   a heating-side exhaust regulation door disposed between the interior and exterior outlets of the heating duct to regulate an outflow amount of air.   
     
     
         7 . The air conditioning system according to  claim 1 , further comprising:
 a controller configured to adjust an operation of the air volume regulation door,   wherein when the air conditioning system is operated in a cooling mode, the controller is configured to adjust the air volume regulation door to supply a portion of air in the cooling duct to the heating duct.   
     
     
         8 . The air conditioning system according to  claim 1 , further comprising:
 a controller configured to adjust an operation of the air volume regulation door,   wherein when the air conditioning system is operated in a heating mode, the controller is configured to adjust the air volume regulation door to supply a portion of air in the heating duct to the cooling duct.   
     
     
         9 . The air conditioning system according to  claim 5 , further comprising:
 a controller configured to adjust operations of the first and second 3-way valves,   wherein when the air conditioning system is operated in a cooling mode, the controller is configured to operate the first and second 3-way valves to circulate a refrigerant in the cooling circulation passage.   
     
     
         10 . The air conditioning system according to  claim 5 , further comprising:
 a controller configured to adjust operations of the first and second 3-way valves,   wherein when the air conditioning system is operated in a heating mode, the controller is configured to operate the first and second 3-way valves to circulate a refrigerant in the heating circulation passage.   
     
     
         11 . The air conditioning system according to  claim 6 , further comprising:
 a controller configured to adjust operations of the cooling-side exhaust regulation door and the heating-side exhaust regulation door,   wherein when the air conditioning system is operated in a cooling mode, the controller is configured to operate the cooling-side exhaust regulation door to close the cooling-side exterior outlet, and operate the heating-side exhaust regulation door to close the heating-side interior outlet.   
     
     
         12 . The air conditioning system according to  claim 6 , further comprising
 a controller configured to adjust operations of the cooling-side exhaust regulation door and the heating-side exhaust regulation door,   wherein when the air conditioning system is operated in a heating mode, the controller is configured to operate the heating-side exhaust regulation door to close the heating-side exterior outlet, and operate the cooling-side exhaust regulation door to close the cooling-side interior outlet.