Accumulator of air conditioner

Abstract

The present invention provides an accumulator of an air conditioner, in which a coolant outlet pipe is a dual pipe with an internal pipe and an external pipe, a return cap is combined to the lower end of the dual pipe, and a gas coolant flows from the upper portion inside a tank through a gas coolant inlet between the internal pipe and the external pipe, turns into the internal pipe at the return cap, and then continues flowing through the gas coolant outlet to an outer pipe. Therefore, the accumulator can be manufactured from a small tank, so that it can be easily mounted in a small space with high liquid-vapor separating performance and pressure resistance.

1 - 15 . (canceled) 
     
     
         16 . The accumulator of an air conditioner as set forth in claim  1 , further comprising: a high-pressure coolant inlet pipe that longitudinally surrounds a part of the outside of the external pipe of the coolant outlet pipe; and
 a high-pressure coolant outlet pipe that longitudinally surrounds the other part of the outside of the external pipe of the coolant outlet pipe,   wherein a connection cap is combined to the lower ends of the high-pressure coolant inlet pipe and the high-pressure coolant outlet pipe such that the coolant that flows inside through the high-pressure coolant inlet pipe turns into the high-pressure coolant outlet pipe at the connection cap.   
     
     
         17 . The accumulator of an air conditioner as set forth in  claim 16 , wherein the high-pressure coolant inlet pipe and the high-pressure coolant outlet pipe each have a curved thin tube with a plurality of coolant passage inside. 
     
     
         18 . The accumulator of an air conditioner as set forth in  claim 17 , wherein the curved insides of the curved thin tubes is joined to the outside of the external pipe of the coolant outlet pipe so that the coolant in the coolant outlet pipe exchanges heat with the coolants in the high-pressure coolant inlet pipe and the high-pressure coolant outlet pipe. 
     
     
         19 . The accumulator of an air conditioner as set forth in  claim 17 , wherein heat conductive fins are provided on the curved outside of the curved thin tube. 
     
     
         20 . The accumulator of an air conditioner as set forth in  claim 19 , wherein the heat conductive fins are integrally formed with the curved thin tube, protruding outside. 
     
     
         21 . The accumulator of an air conditioner as set forth in  claim 19 , wherein the heat conductive fin is an offset fin with folds. 
     
     
         22 . The accumulator of an air conditioner as set forth in  claim 19 , wherein the heat conductive fin is a flat fin that is inserted around the curved thin tube. 
     
     
         23 . The accumulator of an air conditioner as set forth in  claim 19 , wherein the curved thin tube is formed by being pressed in a curved thin tube shape without post-machining. 
     
     
         24 . The accumulator of an air conditioner as set forth in  claim 16 , wherein the connection cap is integrally formed with the return cap of the coolant outlet pipe. 
     
     
         25 . The accumulator of an air conditioner as set forth in  claim 16 , wherein the coolant intake is a pipe that is vertically disposed from the upper portion through the tank and has a coolant injection hole through the outside of the pipe to rotate an injected coolant.