| 摘要 |
<p>PROBLEM TO BE SOLVED: To use an air passage effectively and to acquire high air blowing efficiency.SOLUTION: An orifice ring 2 is configured by a substantially arc-shaped suction side R part 3 and a blowout side R part 4, and a straight part 5 between the suction side R part 3 and the blowout side R part 4, and it has deletion parts 11a, 11b on left and right at one part of the suction side R part 3 and the straight part 5. Also, by arranging a partition plate 8 and a heat exchanger unit 9, the partition plate 8 and the heat exchanger unit 9 substitute for an orifice function of the deletion parts 11a, 11b of the orifice ring 2. Thus, an air passage can be used effectively by enlarging an outer diameter of a fan 1, and air blowing efficiency becomes high while a body is in the same size.</p> |
