Abstract: The present invention relates to a combined structure for a cross-flow fan comprising a rotor mounting having a magnet ring and a coil enclosed therein, a fan mounted under the rotor mounting, protrusions for attaching the fan to the rotor mounting so as to easily assemble the rotor mounting and the fan together, a stator mounting mounted above the rotor mounting, a housing, and a hook for attaching the stator mounting to the housing. The housing comprises an entry and an exit and contains the rotor mounting, the fan and the stator mounting.

Abstract: A driven unit driven adapted to be used in a cross fan is provided. The driven unit is driven by a motor. The main feature of the driven unit is that there is a concave region on the surface of its rotary shaft. The elastic rubber cap is embedded in the concave region and the embedded portion of the rubber cap can tightly connect the rotary shaft with the rubber cap. Therefore, the blades sleeved on the rotary shaft can be fixed in the right position without shifting. The cross fan having the driven unit of the present invention will have a relatively longer useful life.