Heat exchanger

Abstract

The present invention relates to a heat exchanger including a tank having an opened lower side, a header into which the opened lower side of the tank is inserted, the header being configured to define a space, in which a heat exchange medium is stored and flows, by being coupled to the tank, a baffle coupled and interposed between the tank and the header, and a nozzle having an insertion portion, which is one side, formed in a shape corresponding to an inner shape defined by the tank and the baffle, the insertion portion being inserted and coupled into an inner side defined by the tank and the baffle, such that a communication hole of the nozzle, which connects the header tank and an inlet/outlet pipe, may have a relatively large size.

1 . A heat exchanger comprising:
 a tank having an opened lower side;   a header into which the opened lower side of the tank is inserted, the header being configured to define a space, in which a heat exchange medium is stored and flows, by being coupled to the tank;   a baffle coupled and interposed between the tank and the header; and   a nozzle having an insertion portion, which is one side, formed in a shape corresponding to an inner shape defined by the tank and the baffle, the insertion portion being inserted and coupled into an inner side defined by the tank and the baffle.   
     
     
         2 . The heat exchanger of  claim 1 , wherein a lower end of the tank inserted into the header is disposed to be spaced apart from an inner lower end of the header, and the baffle is disposed between the lower end of the tank and the inner lower end of the header. 
     
     
         3 . The heat exchanger of  claim 1 , wherein an inner peripheral surface of the tank and an inner peripheral surface of the baffle are formed without a level difference therebetween. 
     
     
         4 . The heat exchanger of  claim 1 , wherein a fixing hole is formed in the header while penetrating inner and outer surfaces of the header, a fixing tab protrudes from the baffle, and the fixing tab of the baffle is inserted and coupled into the fixing hole of the header. 
     
     
         5 . The heat exchanger of  claim 4 , wherein a lower end of the tank is in contact with and supported by upper ends of two opposite sides of the baffle based on a width direction. 
     
     
         6 . The heat exchanger of  claim 1 , wherein the nozzle further comprises a pipe connection portion extending from the insertion portion and having a larger diameter than the insertion portion. 
     
     
         7 . The heat exchanger of  claim 1 , further comprising:
 an auxiliary baffle disposed to be spaced apart from the baffle, in a direction in which the insertion portion of the nozzle is inserted into an inner side defined by the tank and the baffle, and configured such that one end of the insertion portion is in contact with and supported by the auxiliary baffle, the auxiliary baffle coupled and interposed between the header and the tank and having a through-hole penetrating two opposite surfaces of the auxiliary baffle.   
     
     
         8 . The heat exchanger of  claim 7 , wherein one end of the insertion portion of the nozzle is in contact with and joined to the auxiliary baffle. 
     
     
         9 . The heat exchanger of  claim 7 , wherein the through-hole of the auxiliary baffle is formed in a shape corresponding to a communication hole that is an inner side of the insertion portion of the nozzle, and the through-hole is formed so as not to cover the communication hole. 
     
     
         10 . The heat exchanger of  claim 7 , wherein protruding tabs are formed at upper and lower sides of the auxiliary baffle, coupling holes are formed in the header and the tank while penetrating inner and outer surfaces of the header and the tank, and the protruding tabs of the auxiliary baffle are inserted and coupled into the coupling holes of the headers and the tanks. 
     
     
         11 . The heat exchanger of  claim 1 , wherein the tank and the header are formed in two rows, the baffle is coupled to one of the two rows, and an end cap, which has a shape in which two opposite sides are blocked, is coupled to the other of the two rows at a position corresponding to the baffle. 
     
     
         12 . A heat exchanger comprising:
 a tank having an opened lower side;   a header into which the opened lower side of the tank is inserted, the header configured to define a space, in which a heat exchange medium is stored and flows, by being coupled to the tank;   a baffle coupled to an outer side of the tank and an outer side of the header to cover and block an opened side of an assembly made by coupling the tank and the header, the baffle having an opening penetrating two opposite surfaces of the baffle; and   a nozzle having an insertion portion having at least a part formed in a shape corresponding to an inner shape of the tank, the insertion portion being inserted and coupled into an inner side defined by the tank and the header.   
     
     
         13 . The heat exchanger of  claim 12 , wherein an upper side of the insertion portion of the nozzle is in contact with an inner peripheral surface of the tank, and a lower side of the insertion portion is in contact with and supported by an inner peripheral surface of the header. 
     
     
         14 . The heat exchanger of  claim 12 , wherein an upper side of the opening of the baffle is formed to correspond to an inner peripheral surface of the tank, and a lower side of the opening is formed in a curved shape connected to the upper side without a level difference. 
     
     
         15 . The heat exchanger of  claim 12 , wherein the baffle has a bent tab extending and bent from a periphery toward an outer surface of the tank and an outer surface of the header. 
     
     
         16 . The heat exchanger of  claim 15 , wherein the bent tab of the baffle is provided as a plurality of bent tabs, and the bent tab of the baffle at a position corresponding to the tank side and the bent tab positioned at the position corresponding to the header side are disposed to be spaced apart from each other. 
     
     
         17 . The heat exchanger of  claim 12 , wherein a catching projection protrudes from an inner surface of the header, and a lower end of the tank is in contact with and supported by the catching projection. 
     
     
         18 . The heat exchanger of  claim 12 , wherein the nozzle further comprises a pipe connection portion extending from the insertion portion and having a larger diameter of the insertion portion. 
     
     
         19 . The heat exchanger of  claim 12 , wherein the tank and the header are formed in two rows, the baffle is coupled to one of the two rows, and the end cap, which has a shape in which two opposite surfaces are blocked, is coupled to the other of the two rows at a position corresponding to the baffle and coupled to an opened outer side of an assembly made by coupling the tank and the header. 
     
     
         20 . The heat exchanger of  claim 19 , wherein the end cap has a bent tab extending and bent from a periphery toward an outer surface of the tank and an outer surface of the header. 
     
     
         21 . The heat exchanger of  claim 20 , wherein the bent tab of the end cap is provided as a plurality of bent tabs, and the bent tab of the end cap at a position corresponding to the tank side and the bent tab at a position corresponding to the header side are disposed to be spaced apart from each other. 
     
     
         22 . The heat exchanger of  claim 19 , wherein the baffle and the end cap are integrated into a single connected shape.