| 摘要 |
PROBLEM TO BE SOLVED: To provide an air mover which includes an air mover boundary surface decreasing the total noise of a blower without excessively disturbing an air flow into the air mover; the air mover boundary surface guiding air toward an impeller so as to decrease aerodynamic noise generated by the air mover; and a cover increasing area amount which can be used for supplying to an air mover suction port, while keeping the total height of the air mover within a range of a predetermined mounting space.SOLUTION: An air mover assembly 2 includes: an impeller 8; a motor for driving the impeller; an air mover housing 40 which includes at least one suction port 4 accepting air while the impeller rotates, and at least one exhaust port 6; and an air mover suction boundary surface which is adjacent to at least one suction port, and includes height, a wall having a curved portion along at least a part of the height of the air mover suction port boundary surface extending outward in an air flow direction, and an inner diameter smaller than an outer diameter of the impeller.SELECTED DRAWING: Figure 2 |
