Cooling system

Abstract

A cooling system that cools a heat generating source mounted on a vehicle includes: a compressor that circulates refrigerant; a first heat exchanger that performs heat exchange between the refrigerant and outside air; a decompressor that decompresses the refrigerant; a second heat exchanger that performs heat exchange between the refrigerant and air-conditioning air; and a cooling device that is provided on a path of the refrigerant flowing between the first heat exchanger and the decompressor and that uses the refrigerant to cool the heat generating source. A capillarity generating portion that causes the refrigerant to rise due to capillarity is provided inside the cooling device.

1 . A cooling system configured to cool a heat generating source mounted on a vehicle, comprising:
 a compressor configured to circulate refrigerant;   a first heat exchanger configured to perform heat exchange between the refrigerant and outside air;   a decompressor configured to decompress the refrigerant;   a second heat exchanger configured to perform heat exchange between the refrigerant and air-conditioning air; and   a cooling device configured to be provided on a path of the refrigerant flowing between the first heat exchanger and the decompressor and configured to use the refrigerant to cool the heat generating source, the cooling device including a capillarity generating portion that causes the refrigerant to rise due to capillarity.   
     
     
         2 . The cooling system according to  claim 1 , wherein the capillarity generating portion is configured to be formed by subjecting an inner face of a bottom portion of the cooling device to surface processing. 
     
     
         3 . The cooling system according to  claim 2 , wherein the inner face of the bottom portion of the cooling device has a plurality of grooves. 
     
     
         4 . The cooling system according to  claim 1 , wherein the capillarity generating portion extends in a flow direction of the refrigerant flowing through the cooling device. 
     
     
         5 . The cooling system according to  claim 1 , wherein the heat generating source is in thermal contact with an outer face of a bottom portion of the cooling device. 
     
     
         6 . The cooling system according to  claim 5 , wherein the heat generating source is directly in contact with the outer face of the bottom portion of the cooling device or is in contact with the outer face via a heat pipe. 
     
     
         7 . The cooling system according to  claim 1 , further comprising:
 a first line through which the refrigerant flows between the compressor and the first heat exchanger;   a second line through which the refrigerant flows between the cooling device and the decompressor; and   a communication line configured to provide fluid communication between the first line and the second line.   
     
     
         8 . The cooling system according to  claim 7 , further comprising:
 a third line through which the refrigerant flows between the decompressor and the second heat exchanger; and   a fourth line through which the refrigerant flows between the second heat exchanger and the compressor.