Abstract: A flow-guiding device, connected between two fans disposed in series and rotating in the same rotation direction, includes a main frame and a plurality of flow-guiding pieces. The flow-guiding pieces are connected with the main frame. Each of the flow-guiding pieces is disposed corresponding to the stationary flow guiding device of the above fan so as to form a completed flow guiding device. A fan assembly including the flow-guiding device is also disclosed.

Abstract: A fan has a fan frame for accommodating a first circuit board and a second circuit board. A fan frame includes a housing, a base, and at least one supporting element. The base is disposed in the housing, and the base includes a bottom portion and a tube portion, which is connected to and extended from the bottom portion. The supporting element is connected between the housing and the base. There is a predetermined distance between the bottom portion of the base and an end of the housing so as to form an accommodating space, the first circuit board is disposed on the base and is located on a first side of the bottom portion facing the tube portion, and the second circuit board is disposed in the accommodating space which is located on a second side of the bottom portion facing away from the tube portion.

Abstract: A rotor of a motor includes a shaft, a magnetically conductive shell and a connecting element. The shaft has a groove formed at one end of the shaft. The central portion of a top wall of the magnetically conductive shell has at least one extending portion disposed adjacent to the groove, and at least one part of the extending portion is radially projected onto the groove. The connecting element connects the end of the shaft and the extending portion of the magnetically conductive shell. A fan including above-mentioned rotor is also disclosed.

Abstract: A flow-guiding device, connected between two fans disposed in series and rotating in the same rotation direction, includes a main frame and a plurality of flow-guiding pieces. The flow-guiding pieces are connected with the main frame. Each of the flow-guiding pieces is disposed corresponding to the stationary flow guiding device of the above fan so as to form a completed flow guiding device. A fan assembly including the flow-guiding device is also disclosed.

Abstract: A fan includes an impeller, a motor, and a fan frame. The motor is connected to the impeller and for driving the impeller to rotate. The fan frame is for accommodating the impeller and the motor and the fan frame includes a housing, a motor base and a plurality of supporting elements. The housing has an air outlet. The motor base is disposed at the central region of the housing, and has an airflow-guiding portion located in the vicinity of the air outlet. The supporting elements are connected between the housing and the motor base.

Abstract: A fan has a fan frame for accommodating a first circuit board and a second circuit board. A fan frame includes a housing, a base, and at least one supporting element. The base is disposed in the housing, and the base includes a bottom portion and a tube portion, which is connected to and extended from the bottom portion. The supporting element is connected between the housing and the base. There is a predetermined distance between the bottom portion of the base and an end of the housing so as to form an accommodating space, the first circuit board is disposed on the base and is located on a first side of the bottom portion facing the tube portion, and the second circuit board is disposed in the accommodating space which is located on a second side of the bottom portion facing away from the tube portion.

Abstract: A heat dissipation fan and a housing thereof. The heat dissipation fan includes a housing and a plurality of blades. The housing includes an outer frame, a base, and a plurality of air-guiding elements. The base is disposed in the outer frame, supporting the blades thereon. The air-guiding elements are disposed between the base and the outer frame, having a first curved surface, a second curved surface, and a bottom surface.

Abstract: A heat dissipation fan and a housing thereof. The heat dissipation fan includes a housing and a plurality of blades. The housing includes an outer frame, a base, and a plurality of air-guiding elements. The base is disposed in the outer frame, supporting the blades thereon. The air-guiding elements are disposed between the base and the outer frame, having a first curved surface, a second curved surface, and a bottom surface.