Abstract: The disclosure relates to a self-cooling motor and a hot-air-circulation device using the same. The self-cooling motor includes a housing, a stator assembly, a rotor assembly and an impeller. The housing includes a sleeve and a bottom plate. The sleeve has a first end and a second end opposite to each other. The bottom plate is disposed adjacent to the first end and forms an inlet facing a radial direction. The rotor assembly coupled to the stator assembly includes a shaft extending outside the housing along an axial direction. The impeller is fixed to the shaft and is adjacent to the second end to form an outlet facing the radial direction. When the shaft drives the impeller to rotate, the airflow enters through the inlet and is discharged from the outlet in the radial direction.

Abstract: The disclosure relates to a self-cooling motor and a hot-air-circulation device using the same. The self-cooling motor includes a housing, a stator assembly, a rotor assembly and an impeller. The housing includes a sleeve and a bottom plate. The sleeve has a first end and a second end opposite to each other. The bottom plate is disposed adjacent to the first end and forms an inlet facing a radial direction. The rotor assembly coupled to the stator assembly includes a shaft extending outside the housing along an axial direction. The impeller is fixed to the shaft and is adjacent to the second end to form an outlet facing the radial direction. When the shaft drives the impeller to rotate, the airflow enters through the inlet and is discharged from the outlet in the radial direction.

Abstract: A silicon steel assembly includes a first cover, a second cover, plural tooth members and an outer ring. The second cover has plural recesses. The tooth members are accommodated within respective recesses of the second cover. The first cover, the tooth members and the second cover are combined together to form a combination structure. The outer ring is sheathed around an outer periphery of the combination structure.

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 balancing cover connected with a rotor structure includes a plate, a plurality of blades and at least one balancing element. A central portion of the plate has an opening. Each blade has one end connected with the plate and mounted on a circumference of the opening, and the other end connected with the rotor structure. Each blade has at least one hole, in which the balancing element is disposed.

Abstract: A silicon steel assembly includes a first cover, a second cover, plural tooth members and an outer ring. The second cover has plural recesses. The tooth members are accommodated within respective recesses of the second cover. The first cover, the tooth members and the second cover are combined together to form a combination structure. The outer ring is sheathed around an outer periphery of the combination structure.

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 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.

Abstract: A balancing cover connected with a rotor structure includes a plate, a plurality of blades and at least one balancing element. A central portion of the plate has an opening. Each blade has one end connected with the plate and mounted on a circumference of the opening, and the other end connected with the rotor structure. Each blade has at least one hole, in which the balancing element is disposed.

Abstract: A bearing of a water pump is adapted to be used with a washer and includes an approximately cylindrical body with an axial hole defined in its center. One end surface of the bearing, which faces the washer, has a nick for forming a water membrane so as to reduce friction and adhesion between the bearing and the washer.

Abstract: A housing of a pump includes a fluid inlet and a fluid outlet. A rotor of the pump is disposed in the housing and includes a rotating portion, a magnet, and a bearing. The magnet is disposed on one side of the rotating portion. The bearing is disposed in the center of the rotating portion. A stator is disposed in the housing and corresponds to the magnet of the rotor, providing electromagnetic force required for rotation of the rotor. The rotating portion, magnet, and bearing are integrally formed as single unit by injection molding.

Abstract: A housing of a centrifugal pump includes a fluid inlet, a fluid outlet, and an accommodation chamber. An impeller of the pump is disposed in the accommodation chamber and includes at least one venthole axially penetrating the impeller. A drive member is fixed to one side of the housing and corresponds to the impeller for providing electromagnetic force required for rotation of the impeller. A central shaft penetrates the center of the impeller and axially extends to the drive member.

Abstract: A pump includes a case, a base disposed in the case and a rotor. The rotor includes a magnetic extension portion which surrounds a yoke. The pump gains efficiency in view of the above without increasing volume. Furthermore, the pump includes a first magnet and a second magnet, positioned on the rotor and the inside of the case individually. A magnetic force is generated between the first and second magnets to limit the rotor to rotate in a predetermined position, increasing utility life of the pump.

Abstract: The non-biasing guiding mechanism related to CD-R drives is used to drive a data access device to move along a particular direction and to access the data on a CD. The shaft of the non-biasing guiding mechanism is fixed by an axis-fixing member. The axis-fixing member has ring parts on the opposite ends and a receiver integrally formed with the ring part in a concentric way. The ring part is coiled by a coil and sets inside the drive, and the hole is used for positioning the shaft and sets outside the drive. Therefore, the biasing problem of the shaft can be solved by using the axis-fixing member.

Abstract: The non-biasing guiding mechanism related to CD-R drives is used to drive a data access device to move along a particular direction and to access the data on a CD. The shaft of the non-biasing guiding mechanism is fixed by an axis-fixing member. The axis-fixing member has ring parts on the opposite ends and a receiver integrally formed with the ring part in a concentric way. The ring part is coiled by a coil and sets inside the drive, and the hole is used for positioning the shaft and sets outside the drive. Therefore, the biasing problem of the shaft can be solved by using the axis-fixing member.