Electronic component cooling apparatus

Abstract

A radiator, a heat sink and a tank are disposed on circulating paths. The radiator includes a fan. The tank includes a pump for forcedly circulating fluid. A pump-fan drive unit is provided between the tank and the radiator. The fan and the pump are directly connected to a single motor so that they can be driven by the motor. The pump has a magnet rotor, and a rotor driver. The magnet rotor is accommodated in the tank so as to be rotatable. The rotor driver is fixedly provided in an end portion of an output shaft of the motor. The magnet rotor is magnetically driven to rotate by the rotor driver.

1 . An electronic component cooling apparatus disposed on a circulating path through which fluid circulates, the electronic component cooling apparatus comprising: 
 a heat sink disposed on the circulating path and adapted to transfer heat generated from an electronic component to the fluid;    a radiator disposed on the circulating path and provided with a fan cooling the fluid in the radiator, and the radiator emitting the heat;    a tank disposed on the circulating path and provided with a pump circulating the fluid through the circulating path, and the tank reserving the fluid; and    a single motor driving the fan and the pump.    
   
   
       2 . An electronic component cooling apparatus according to  claim 1 , wherein 
 the fan is directly connected to one end portion of an output shaft of the motor, and    the pump is directly connected to the other end portion of the output shaft of the motor.    
   
   
       3 . An electronic component cooling apparatus according to  claim 1 , wherein the pump comprises 
 a magnet rotor rotatably accommodated in the tank; and    a rotor driver provided at an end portion of an output shaft of the motor so as to magnetically rotate the magnet rotor.    
   
   
       4 . An electronic component cooling apparatus according to  claim 1 , wherein the pump comprises a fan member rotatably accommodated in the tank and directly connected to an end portion of an output shaft of the motor.