Abstract: A motor includes a rotor magnetic ring, a stator core, a first magnetic conducting sheet and a second magnetic conducting sheet. The stator core is disposed around and out of the rotor magnetic ring. The first magnetic conducting sheet has a ring shape with a protruding portion serving as a first magnetic pole. The second magnetic conducting sheet has a ring shape with a protruding portion serving as a second magnetic pole. The first magnetic conducting sheet is disposed at the upper side of the stator core, and the second magnetic conducting sheet is disposed at the lower side of the stator core. The projections of the first and second magnetic poles alternate with each other. A fan including the motor is also disclosed.

Abstract: A fan includes an inner rotor motor, which includes a housing, a rotor assembly and a stator assembly. The rotor assembly includes a rotor, which includes blades and is accommodated in the housing. The stator assembly is disposed in the housing corresponding to the rotor assembly. The stator assembly includes a coil disposed around the rotor. The coil is a flat helix structure formed by a continuous wire, and the flat helix structure forms a cylindrical plane perpendicular to a radius plane of the motor.

Abstract: A fan structure includes a frame having an inner surface, a permeable element covering the inner surface of the frame, a coil surrounded by the permeable element and a rotor assembly disposed rotatably in the frame. The rotor assembly includes a plurality of blades coupled to a shaft and a permanent magnet enclosing the blades and facing the coil. The rotor assembly rotates along the shaft to generate airflow by means of the electromagnetic effect between the permanent magnet and the coil.

Abstract: A motor including a bearing structure, a rotor structure, a stator structure and a magnetic body is disclosed. The rotor structure includes a shaft disposed on the bearing structure. The stator structure is disposed corresponding to the rotor structure. The magnetic body is disposed opposite to the shaft and includes a first magnetic element and a second magnetic element. The first magnetic element is disposed around the second magnetic element. A fan including the motor is disclosed as well. The shaft of the fan and the motor thereof are provided with higher axial attraction in operation such that it reduces the abrasion of the shaft and the noise of the motor and the fan.

Abstract: A fan includes an inner rotor motor, which includes a housing, a rotor assembly and a stator assembly. The rotor assembly includes a rotor, which includes blades and is accommodated in the housing. The stator assembly is disposed in the housing corresponding to the rotor assembly. The stator assembly includes a coil disposed around the rotor. The coil is a flat helix structure formed by a continuous wire, and the flat helix structure forms a cylindrical plane perpendicular to a radius plane of the motor.

Abstract: A motor includes a rotor magnetic ring, a stator core, a first magnetic conducting sheet and a second magnetic conducting sheet. The stator core is disposed around and out of the rotor magnetic ring. The first magnetic conducting sheet has a ring shape with a protruding portion serving as a first magnetic pole. The second magnetic conducting sheet has a ring shape with a protruding portion serving as a second magnetic pole. The first magnetic conducting sheet is disposed at the upper side of the stator core, and the second magnetic conducting sheet is disposed at the lower side of the stator core. The projections of the first and second magnetic poles alternate with each other. A fan including the motor is also disclosed.