| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling device which shows the cooling effect.SOLUTION: A cooling device comprises a reflection board for making an influx cooling medium flow out in a predetermined direction to form a cooling medium flux in a predetermined shape. More specifically, an air guiding board 11 circumferentially guides air which has been taken in through an air inlet 4 from outside, inside an electric apparatus housing 1. Further, the air flux which has been circumferentially guided is directed to a vent hole 12 provided at the center of a circuit board 2, while drawing heat from a surface of a heating component 3 mounted on the circuit board 2. Then, a cooling fan 5 provided at the bottom of the vent hole 12 breathes in the airflow with heat from the surface of the circuit board 2 to accelerate the vortex flow, and exhaust the airflow through an air outlet. |
