CPC B01D 46/0047 (2013.01) [B01D 46/0002 (2013.01); F04D 17/06 (2013.01); F04D 19/002 (2013.01); F04D 29/462 (2013.01); F04D 29/522 (2013.01)] | 20 Claims |
1. A mixed flow fan module, comprising:
a fan housing having an outer surface that is curved along a circumferential direction and defining an operation space;
a fan rotatably disposed inside of the fan housing; and
a fan base coupled to the fan housing and configured to guide air in a direction toward the fan, wherein the fan housing, the fan, and the fan base are coupled together to form a module, wherein the fan comprises:
a hub configured to be disposed at a center of the fan housing and rotated by receiving external power;
a plurality of fan blades each having a first end connected to the hub and spaced apart from one another by an equal distance along an outer circumferential surface of the hub; and
a shroud connected to a second end of each of the plurality of fan blades, having an annular shape, and spaced apart from the fan base, and wherein the hub comprises:
a hub plate rotatably disposed inside of the fan housing and located at a radial central portion of the fan housing;
a shaft coupler disposed at a center of the hub plate, that protrudes either upward or downward from the hub plate, and is connected to a shaft to receive a rotational power;
an inner protrusion defined along an outer edge of the hub plate, having a circular arc shape, and that extends upward; and
a skirt that extends obliquely upward from an outside of the inner protrusion.
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