Condenser for vehicle

Abstract

A condenser for a vehicle may include a main heat dissipating portion having a first passage and a second passage, a sub-heat-dissipating portion having a third passage and a fourth passage, a receiver drier unit that receives refrigerant from the main heat dissipating portion through the sub-heat-dissipating portion, separates gaseous refrigerant from the condensed refrigerant, and filters moisture and foreign materials, an upper cover in which a refrigerant inlet may be formed at one side of an opposite side of the receiver drier unit corresponding to the main heat dissipating portion and a coolant outlet may be formed at the other end portion thereof, and a lower cover in which a refrigerant outlet may be formed at one side corresponding to the refrigerant inlet to be connected to the sub-heat-dissipating portion.

What is claimed is: 
     
         1 . A condenser for a vehicle, comprising:
 a main heat dissipating portion including:
 a first passage in which a coolant passes the first passage; and 
 a second passage in which a refrigerant passes the second passage such that the coolant and the refrigerant exchange heat with each other; 
   a sub-heat-dissipating portion that is disposed at a lower side of the main heat dissipating portion and including:
 a third passage in which a coolant passes; and 
 a fourth passage in which a refrigerant passes such that the coolant and the refrigerant exchange heat with each other; 
   a receiver drier unit that is disposed at a lateral side of an upper side of the sub-heat-dissipating portion, receives the refrigerant from the main heat dissipating portion through the sub-heat-dissipating portion so as to separate gaseous refrigerant from condensed refrigerant and to filter moisture and foreign materials therefrom;   an upper cover in which a refrigerant inlet is formed at one side of an opposite side of the receiver drier unit corresponding to the main heat dissipating portion and a coolant outlet is formed at the other end portion thereof; and   a lower cover in which a refrigerant outlet is formed at one side corresponding to the refrigerant inlet to be connected to the sub-heat-dissipating portion, a coolant inlet is formed to be connected to the main heat dissipating portion and the sub-heat-dissipating portion, and a mounting hole is formed to correspond to the receiver driver unit.   
     
     
         2 . The condenser for the vehicle of  claim 1 , wherein the receiver driver unit includes:
 a refrigerant storage portion that is formed by laminating a plurality of plates and in which a coolant storage space is formed therein;   an insert element that is inserted into the coolant storage space through the sub-heat-dissipating portion at a lower portion of the lower cover; and   a drier that is disposed in the insert element at an upper portion of a fixation cap configured to be disposed in the insert element.   
     
     
         3 . The condenser for the vehicle of  claim 2 , wherein the sub-heat-dissipating portion includes a connection space at one side inner portion corresponding to the receiver driver unit to be connected to the coolant storage space. 
     
     
         4 . The condenser for the vehicle of  claim 2 , wherein the insert element has an exhaust hole that is formed at one side upper portion corresponding to a filter portion of the fixation cap and the sub-heat-dissipating portion to exhaust a liquid state refrigerant passing the filter portion of the fixation cap to the sub-heat-dissipating portion. 
     
     
         5 . The condenser for the vehicle of  claim 2 , wherein the insert element has a cylindrical shape of which both end portions are opened. 
     
     
         6 . The condenser for the vehicle of  claim 2 , wherein a sealant is interposed between an interior circumference of the insert element and an exterior circumference of a lower end portion of the fixation cap to seal the insert element and the fixation cap. 
     
     
         7 . The condenser for the vehicle of  claim 1 ,
 wherein a barrier wall is formed at an upper portion of the sub-heat-dissipating portion near the main heat dissipating portion respectively corresponding to the refrigerant outlet and the coolant inlet, and   wherein a first connection passage is formed at an upper portion of the barrier wall to be connected to the receiver driver unit.   
     
     
         8 . The condenser for the vehicle of  claim 7 , wherein the main heat dissipating portion condenses refrigerant through the heat exchange with the coolant and exhausts condensed refrigerant to the receiver drier unit through the first connection passage. 
     
     
         9 . The condenser for the vehicle of  claim 7 ,
 wherein a second connection passage is formed at a lower portion of the barrier wall in the sub-heat-dissipating portion, and   wherein the liquid refrigerant passing the receiver driver unit flows into the sub-heat-dissipating portion through the second connection passage.   
     
     
         10 . The condenser for the vehicle of  claim 9 , wherein the sub-heat-dissipating portion further condenses the refrigerant that passes the main heat dissipating portion, and the second connection passage, wherein the receiver drier unit separates gaseous refrigerant from the condensed refrigerant and eliminates moisture. 
     
     
         11 . The condenser for the vehicle of  claim 1 , wherein the sub-heat-dissipating portion is connected to the main heat dissipating portion and the receiver driver unit through a connection plate that is disposed at an upper portion thereof. 
     
     
         12 . The condenser for the vehicle of  claim 11 , wherein a fixation protrusion is formed on the connection plate, the fixation protrusion is formed between the main heat dissipating portion and the receiver driver unit in a width direction thereof, and the fixation protrusion separates the main heat dissipating portion from the receiver driver unit and fixes them together. 
     
     
         13 . The condenser for the vehicle of  claim 1 , wherein the refrigerant and the coolant flow in opposite directions from each other.