| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a reliable air refrigerant type cooler with an efficient internal air cooling mechanism. <P>SOLUTION: The air refrigerant type cooler including a compressor, a motor and an expansion turbine comprises a heat radiation means provided within the motor. A pressure difference is forcedly generated between the inside and outside of the motor. According to this, at the time of driving the motor, the heat generated from a main body of a stator and the heat generated from a coil end part thereof are forcedly discharged out of the motor by the heat radiating means and by the cooling air discharge out of the motor, respectively. Further, a guide plate is arranged in the vicinity of a cooling air inlet in the motor so that the cooling air taken into the motor efficiently collides with the coil end part of the stator. According to this, the heat generated from the coil end part is efficiently discharged from the inside of the motor to the outside. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
