Cooling system

Abstract

A cooling system includes a first pump group including a plurality of pumps that circulates a cooling medium to cool a first part; a second pump group including a plurality of pumps that circulates a cooling medium to cool a second part; a first power supply that supplies electric power to a part of the pumps of the first pump group and a part of the pumps of the second pump group; and a second power supply that supplies electric power to another part of the pumps of the first pump group and another part of the pumps of the second pump group.

What is claimed is: 
     
         1 . A cooling system comprising:
 a first pump group comprising a plurality of pumps that circulates a cooling medium to cool a first part;   a second pump group comprising a plurality of pumps that circulates a cooling medium to cool a second part;   a first power supply that supplies electric power to apart of the pumps of the first pump group and a part of the pumps of the second pump group; and   a second power supply that supplies electric power to another part of the pumps of the first pump group and another part of the pumps of the second pump group.   
     
     
         2 . The cooling system according to  claim 1 , further comprising:
 a first heat receiving unit that receives heat generated from the first part;   a second heat receiving unit that receives heat generated from the second part; and   a circulation path that forms a flow path to let the cooling medium go through the first pump group, the second pump group, the first heat receiving unit and the second heat receiving unit; wherein   the circulation path branches into a plurality of branch paths including a first branch path going through the first heat receiving unit and a second branch path going through the second heat receiving unit;   the first pump group is arranged in parallel in the first branch path; and   the second pump group is arranged in parallel in the second branch path.   
     
     
         3 . The cooling system according to  claim 2 , further comprising a heat exchanger that releases heat of the cooling medium, wherein
 the circulation path branches into the plurality of branch paths on away from the heat exchanger to the first heat receiving unit and the second receiving unit;   the first pump group is located between the heat exchanger and the first heat receiving unit; and   the second pump group is located between the heat exchanger and the second heat receiving unit.   
     
     
         4 . The cooling system according to  claim 1 , wherein
 a number of the pumps of the first pump group to which the first power supply supplies electric power and a number of the pumps of the second pump group to which the first power supply supplies electricity is same of different by one; and   a number of the pumps of the first pump group to which the second power supply supplies electric power and a number of the pumps of the second pump group to which the second power supply supplies electricity is same of different by one.   
     
     
         5 . The cooling system according to  claim 2 , wherein
 a number of the pumps of the first pump group to which the first power supply supplies electric power and a number of the pumps of the second pump group to which the first power supply supplies electricity is same of different by one; and   a number of the pumps of the first pump group to which the second power supply supplies electric power and a number of the pumps of the second pump group to which the second power supply supplies electricity is same of different by one.   
     
     
         6 . The cooling system according to  claim 3 , wherein
 a number of the pumps of the first pump group to which the first power supply supplies electric power and a number of the pumps of the second pump group to which the first power supply supplies electricity is same of different by one; and   a number of the pumps of the first pump group to which the second power supply supplies electric power and a number of the pumps of the second pump group to which the second power supply supplies electricity is same of different by one.