Cooling module for vehicle

Abstract

A cooling module for a vehicle may include a main radiator, a sub-radiator, a water-cooled condenser and an air-cooled condenser. The main radiator may be disposed at a front region of an engine room and supplies cooled cooling water to an engine. The sub-radiator may be disposed substantially in parallel with the main radiator and in front of the main radiator, have header tanks at both sides and supply the cooled cooling water to an intercooler or electric components. The water-cooled condenser may be disposed in one of the header tanks and primarily condenses a refrigerant by using the cooling water as a heat exchange medium. The air-cooled condenser may be in fluidic communication with the water-cooled condenser to be introduced with the refrigerant condensed in the water-cooled condenser and may be disposed in front of the sub-radiator to secondarily condense the refrigerant.

What is claimed is: 
     
         1 . A cooling module for a vehicle, comprising:
 a main radiator which is disposed at a front region of an engine room with respect to a longitudinal direction of the vehicle, and supplies cooled cooling water to an engine through heat exchange with external air;   a sub-radiator which is disposed substantially in parallel with the main radiator and in front of the main radiator, has header tanks at both sides of the sub-radiator and supplies the cooled cooling water to an intercooler or one or more electric components through heat exchange with the external air, wherein one header tank includes an inlet into which cooling water is introduced and an outlet from which the cooling water is discharged, and a diaphragm is disposed inside the sub-radiator and prevents the cooling water introduced through the inlet and discharged through the outlet from being mixed;   a water-cooled condenser which is disposed in the other header tank of the header tanks and primarily condenses a refrigerant by using the cooling water as a heat exchange medium; and   an air-cooled condenser which is in fluidic communication with the water-cooled condenser to be introduced with the refrigerant condensed in the water-cooled condenser, and is disposed in front of the sub-radiator to secondarily condense the refrigerant by heat exchange with the external air.   
     
     
         2 . The cooling module for a vehicle of  claim 1 , wherein a position of the diaphragm is changed between the inlet and the outlet depending on a mounting position of the air-cooled condenser and a state of the refrigerant passing through the air-cooled condenser. 
     
     
         3 . The cooling module for a vehicle of  claim 1 , wherein the header tanks include a first header tank in which the inlet and the outlet are formed and a second header tank in which the water-cooled condenser is disposed. 
     
     
         4 . The cooling module for a vehicle of  claim 3 , wherein the inlet and the outlet are formed at one end and the other end of the first header tank, respectively, and the diaphragm is disposed therebetween. 
     
     
         5 . The cooling module for a vehicle of  claim 3 , wherein the sub-radiator primarily cools the cooling water introduced through the inlet by heat exchange with the external air while flowing the cooling water from a portion of the first header tank partitioned by the diaphragm to the second heater tank, secondarily cools the cooling water by heat exchange with the external air while flowing the cooling water from the second header tank to a portion of the first header tank where the outlet is disposed, and discharges the cooled cooling water through the outlet. 
     
     
         6 . The cooling module for a vehicle of  claim 3 , wherein the sub-radiator is configured to flow the cooling water in a U-turn pattern from the first header tank to the second header tank and back to the first header tank. 
     
     
         7 . The cooling module for a vehicle of  claim 1 , wherein the main radiator and/or the sub-radiator are formed of a fin-tube type heat exchanger in which inner sides facing each other include a plurality of tubes and heat radiating fins provided between the respective tubes. 
     
     
         8 . The cooling module for a vehicle of  claim 1 , wherein the air-cooled condenser is configured of a fin-tube type heat exchanger in which a plurality of refrigerant pipes are disposed at substantially equal distances and at least one heat radiating fin is provided between or among the refrigerant pipes. 
     
     
         9 . The cooling module for a vehicle of  claim 1 , wherein the air-cooled condenser is divided and partitioned in a height direction of the air-cooled condenser to sequentially condense the refrigerant supplied from the water-cooled condenser for each refrigerant state. 
     
     
         10 . The cooling module for a vehicle of  claim 1 , wherein the air-cooled condenser has one side equipped with a receiver dryer which separates a gaseous refrigerant remaining in the refrigerant introduced from the water-cooled condenser, and is in fluidic communication with the water-cooled condenser through the receiver dryer. 
     
     
         11 . The cooling module for a vehicle of  claim 1 , wherein the main radiator has a cooling fan mounted at rear of the main radiator with respect to the longitudinal direction of the vehicle. 
     
     
         12 . The cooling module for a vehicle of  claim 1 , wherein the water-cooled condenser includes:
 a condensing part that includes at least two plates spaced apart from each other to form at least one refrigerant passage for flowing the refrigerant, wherein a refrigerant passage in the at least one refrigerant passage is formed by coupling two adjacent plates with each other;   a refrigerant inlet which is formed at one end of the condensing part in a longitudinal direction of the condensing part, and protrudes outside the corresponding header tank of the sub-radiator; and   a refrigerant outlet which is formed at the other end of the condensing part, and protrudes outside the corresponding header tank, and is connected with the air-cooled condenser.   
     
     
         13 . The cooling module for a vehicle of  claim 12 , wherein a plate in a pair of two plates disposed at one side has a plurality of protrusions formed at an outer side thereof at a set interval, and is coupled with an outer side of a plate in an adjacent pair of two plates disposed at the other side through each of the protrusions contacting the outer side of the plate in the adjacent pair. 
     
     
         14 . The cooling module for a vehicle of  claim 13 , wherein the plate in the adjacent pair of two plates disposed at the other side has heat radiating protrusions that protrude toward an outside at both sides of the plate in a width direction of the condensing part. 
     
     
         15 . The cooling module for a vehicle of  claim 1 , wherein:
 the header tanks include a first header tank which is provided with the inlet and the outlet and partitioned by the diaphragm, and a second header tank which is in fluidic communication with the first header tank, and   the water-cooled condenser is disposed inside a portion of the first header tank where the outlet is disposed.   
     
     
         16 . The cooling module for a vehicle of  claim 1 , wherein the sub-radiator supplies the cooled cooling water to the intercooler when the sub-radiator is applied to an internal combustion engine vehicle and supplies the cooled cooling water to the one or more electric components when the sub-radiator is applied to a hybrid vehicle.