| 摘要 |
A suction-reinforced type impeller and a fan motor for a vacuum having the impeller are provided to reduce loss of flow and improve suction efficiency without enlarging the size thereof by installing inducer at a suction hole of the impeller. An impeller of suction-reinforced type(100) comprises a top board(110), a bottom board(120), blades(130), and an inducer(140). The top board includes a suction hole in the center of the top. The bottom board is arranged to overlap with the top board. The bottom board is opened to insert a shaft in the center of the bottom. The blades is mounted between the top and the bottom boards with an interval to circumference direction and is arranged to extend radially. The inducer includes a 3D impeller installed in the center of the plurality of blades. The fan motor for a vacuum comprises the impeller of suction-reinforced type.
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