| 摘要 |
PROBLEM TO BE SOLVED: To prevent generation of noise due to a separation flow which occurs when an angle of elevation to fins flow running into a heat exchanger is large. SOLUTION: A straightening member 12 of which the opposite ends are fitted closely to a heat exchanger and which is formed of a straight part 13 having a prescribed angle to the heat exchanger and of a circular arc part 14 being in contact with this straight part 13 is disposed between a centrifugal blower 8 and the heat exchanger 9. By deflecting the direction of an air flow let out from the centrifugal blower 8, an angle of elevation to fins 9a is lessened and thereby noise due to a separation flow at the fore ends of the fins can be eliminated. |
