"Micro Cooling Fan" knowledge in the field of motor design covers a wide range, including electromagnetic, mechanical, thermal, and materials science, the most important thing is how, at the lowest cost to find the best design. Motor design process is extremely complicated, parameters need to constantly test the design meets the requirements. "Micro Cooling Fan" motor applications include load requirements and to determine the main dimensions, the main dimensions referring to the motor size, in general, the motor size and output power is proportional to the load demand comprising rated speed, rated output power and the rated voltage, determine these parameters are related to "Micro Cooling Fan" motor of occasions related.