Air conditioning apparatus for vehicle

Abstract

An air conditioning apparatus for a vehicle may include a Peltier module and a cooling core installed in an HVAC (heating ventilating and air conditioning) unit, the HVAC unit being provided with a blower, a nitrogen tank storing liquid nitrogen therein, a nitrogen line passing through the cooling core, wherein a first end of the nitrogen line may be connected to the nitrogen tank, and a second end of the nitrogen line fluid-communicates with an outside, a nitrogen evaporator provided on the nitrogen line, the nitrogen evaporator evaporating the liquid nitrogen into nitrogen gas, and a main cooling water line circulating water through the nitrogen evaporator, the Peltier module and a water pump in sequence.

What is claimed is: 
     
         1 . An air conditioning apparatus for a vehicle, comprising:
 a Peltier module and a cooling core installed in an HVAC (heating ventilating and air conditioning) unit, the HVAC unit being provided with a blower;   a nitrogen tank storing liquid nitrogen therein;   a nitrogen line passing through the cooling core, wherein a first end of the nitrogen line is connected to the nitrogen tank, and a second end of the nitrogen line fluid-communicates with an outside;   a nitrogen evaporator provided on the nitrogen line, the nitrogen evaporator evaporating the liquid nitrogen into nitrogen gas; and   a main cooling water line circulating water through the nitrogen evaporator, the Peltier module and a water pump in sequence.   
     
     
         2 . The air conditioning apparatus as set forth in  claim 1 , wherein the liquid nitrogen passes though the nitrogen evaporator and then through the cooling core in sequence. 
     
     
         3 . The air conditioning apparatus as set forth in  claim 1 , further including
 a nitrogen valve provided on the nitrogen line between the nitrogen tank and the nitrogen evaporator, the nitrogen valve controlling a flow rate of liquid nitrogen supplied to the nitrogen evaporator.   
     
     
         4 . The air conditioning apparatus as set forth in  claim 3 , further including:
 an auxiliary cooling water line connected to a portion of the main cooling water line positioned between the water pump and the nitrogen evaporator, the auxiliary cooling water line forming a closed circulation line;   an external cooler or a battery cooling line connected to the auxiliary cooling water line; and   a cooling water valve provided on the auxiliary cooling water line, the cooling water valve controlling circulation of cooling water along the auxiliary cooling water line.   
     
     
         5 . The air conditioning apparatus as set forth in  claim 4 , wherein the external cooler and the battery cooling line are connected to the auxiliary cooling water line in parallel. 
     
     
         6 . The air conditioning apparatus as set forth in  claim 4 , further including
 a controller controlling operation of the nitrogen valve, the cooling water valve and the Peltier module.   
     
     
         7 . The air conditioning apparatus as set forth in  claim 1 , wherein
 the HVAC unit includes an inlet port into which an outside air is drawn, and an outlet port through which air is discharged into a passenger compartment of the vehicle,   the blower is installed adjacent to the inlet port, and   the Peltier module and the cooling core are installed adjacent to the outlet port.   
     
     
         8 . The air conditioning apparatus as set forth in  claim 7 , wherein the cooling core is disposed between the blower and the Peltier module.