Abstract: A heat-dissipating fan includes a casing having an air outlet, a base mounted in the air outlet, and a plurality of ribs each mounted between the base and the casing. An impeller is mounted on the base and includes a plurality of blades. Each rib includes in sequence at least a first radial guiding portion, a first circumferential guiding portion, and a second radial guiding portion. Each of the first radial guiding portion and the second radial guiding portion extends in a direction having an inclining angle with an axial direction of the air outlet. The first radial guiding portion, the first circumferential guiding portion, and the second radial guiding portion guide airflow passing through the air outlet and increase wind pressure of the airflow when the impeller is turning.

Abstract: An axial tube assembly of a motor includes an axial tube around which a stator assembly is mounted, an engaging member, and a sleeve in which a bearing is mounted. The engaging member includes a base and a plurality of resilient legs projecting from the base. Each resilient leg has a hook on a distal end thereof. The base of the engaging member is engaged with and thus seals a bottom end of an axial hole of the axial tube. The sleeve is mounted in the engaging member and has a base portion. The hook of each resilient leg is pressed outward to thereby retain the stator assembly in place when the sleeve and the engaging member are received in the axial tube, with the resilient legs of the engaging member together holding the sleeve to thereby allow tight engagement between the sleeve and the bearing.

Abstract: A heat dissipating fan includes a cover plate having an air inlet and a base, an impeller mounted to the base and having a plurality of blades, and an air guiding member having an air passageway and an air outlet. A portion of an axial height of the respective blade is received in the air passageway of the air guiding member. Side inlets are defined between the cover plate and the air guiding member. Air intake occurs simultaneously in the air inlet and in the side inlets when the impeller turns, driving airflow to exit the air outlet in a predetermined direction.

Abstract: An axial tube assembly for a motor includes an axial tube and a sleeve mounted in the axial tube. The axial tube is securely mounted to a casing, and a stator is mounted to the axial tube. When a bearing is mounted in the sleeve, the sleeve is tightly engaged with the axial tube such that the axial tube and the bearing exert forces to each other to thereby retain the axial tube and the bearing in place.

Abstract: A combination structure of a motor has a base board, a printed circuit board and at least one sensing unit. The base board is used for placing a stator and a rotor and has at least one first assembly hole. The printed circuit board is connected to the base board and has at least one second assembly hole. The sensing unit is used for sensing a magnet of the rotor. The second assembly hole of the printed circuit board is placed corresponding to the first assembly hole of the base board for commonly containing the sensing unit so that an axial height of the motor is decreased.

Abstract: An airflow guiding structure for the heat dissipation fan includes a housing, a base and a plurality of guiding members. The housing is formed with an air outlet at which the base and the guiding members are provided. The base is used to support a fan wheel and supported by the guiding members. The guiding members are arranged in at least two guiding directions at the air outlet and at least one of the guiding members is inclined to an axis of the housing. When the fan wheel rotates, the guiding members guide airflow to the two guiding directions.

Abstract: A washer in accordance with the present invention mainly comprises an axial hole and a plurality of oil-bearing holes. The oil-bearing holes are connected an outer surface of the washer to an inner surface, and surround the axial hole.

Abstract: An axial tube assembly for a motor includes an axial tube and a sleeve mounted in the axial tube. The axial tube is securely mounted to a casing, and a stator is mounted to the axial tube. When a bearing is mounted in the sleeve, the sleeve is tightly engaged with the axial tube such that the axial tube and the bearing exert forces to each other to thereby retain the axial tube and the bearing in place.

Abstract: An axial tube assembly for a motor includes an axial tube and a sleeve mounted in the axial tube. The axial tube is securely mounted to a casing, and a stator is mounted to the axial tube. The axial tube includes at least one engaging member on an inner periphery thereof. The sleeve includes at least one engaging member engaged with the engaging member of the axial tube. When a bearing is mounted in the sleeve, the sleeve is tightly engaged with the axial tube such that the axial tube and the bearing exert forces to each other to thereby retain the axial tube and the bearing in place.

Abstract: A heat dissipating fan includes a casing having an outlet, a base mounted in the outlet of the casing, and a plurality of air guiding members mounted in the outlet and connected between the base and the casing. Each air guiding member defines at least one air concentrating area for concentrating air, for guiding airflow, and for increasing wind pressure when an impeller mounted on the base turns.

Abstract: A heat-dissipating fan includes a casing having an air outlet, a base mounted in the air outlet, an impeller being mounted on the base and having a plurality of blades, a plurality of ribs each extending between the base and the casing along a radial direction of the base, and at least one guiding ring fixedly mounted to the ribs. The guiding ring has an axial length that is longer than a width of the guiding ring in the radial direction. The guiding ring guides and divides airflow passing through the air outlet when the impeller is turning.

Abstract: A heat-dissipating module includes a first fan unit and a second fan unit, which are serially connected together to provide an air inlet and an air outlet. Each of the first fan unit and the second fan unit includes a casing and an impeller. At least one side air inlet is defined in at least one of a plurality of sides of the casing of the first fan unit and a plurality of sides of the casing of the second fan unit. The air inlet amount and the air outlet amount of the second fan unit are increased by the side air inlet. The air density distribution is uniform, and the wind noise during operation is lowered.

Abstract: A heat-dissipating fan includes a casing having an air outlet, a base mounted in the air outlet, and a plurality of guiding plates in the air outlet. An impeller is mounted on the base that is supported in the air outlet by the guiding plates. The guiding plates are parallel to one another and extend in a direction having an inclining angle with respect to an axial direction of the air outlet. The guiding plates guide airflow and increase wind pressure when the impeller turns.

Abstract: A heat-dissipating fan includes a casing having an air outlet, a base mounted in the air outlet, and a plurality of ribs each mounted between the base and the casing. An impeller is mounted on the base and includes a plurality of blades. Each rib includes in sequence at least a first radial guiding portion, a first circumferential guiding portion, and a second radial guiding portion. Each of the first radial guiding portion and the second radial guiding portion extends in a direction having an inclining angle with an axial direction of the air outlet. The first radial guiding portion, the first circumferential guiding portion, and the second radial guiding portion guide airflow passing through the air outlet and increase wind pressure of the airflow when the impeller is turning.

Abstract: A casing for a heat-dissipating fan includes an annular wall and a base. The annular wall includes an air inlet in a first end thereof and an air outlet in a second end thereof. The base is securely mounted in the air inlet of the base, with a plurality of ribs extending between the annular wall and the base. A plurality of mounting portions are provided between the annular wall and the base to allow the heat-dissipating fan to be fixed to an object. Since the mounting portions are located inside the annular wall, minimization of the casing is realized.

Abstract: A heat-dissipating module including a first fan unit, a second fan unit, and a connecting arrangement for connecting the first fan unit and the second fan unit in a serial manner. The first fan unit is located on an air inlet side and includes a casing and a fan wheel received in the casing of the first fan unit. The second fan unit is located on an air outlet side and includes a casing and a fan wheel received in the casing of the second fan unit. At least one side air inlet is defined between the casing of the first fan unit and the casing of the second fan unit for increasing an air inlet amount and an air outlet amount of the second fan unit.

Abstract: A disc carrier assembly for an optical disc drive includes a disc carrier having an axial tube, a clamping device, and a positioning sleeve. The clamping device includes a central hole and plural clamping members for clamping an optical disc. The axial tube of the disc carrier is extended through the central hole of the clamping device. The positioning sleeve is securely sandwiched between an inner periphery delimiting the central hole of the clamping device and the axial tube. The positioning sleeve includes a flange for engaging with the clamping device to prevent the clamping device from disengaging from the disc carrier.

Abstract: A disc carrier for an optical disc drive includes a recession integrally formed thereon and an axial tube projecting from a central portion of a bottom wall of the recession. A shaft extends through the axial tube. An engaging length between the axial tube and the shaft is increased to improve rotating stability of the disc carrier. A support member is fixed in the recession and includes a peripheral support edge along a periphery thereof. The support member is in contact with and thus supports plural clamping members of a clamping device.

Abstract: An axial tube assembly of a motor includes an axial tube around which a stator assembly is mounted, an engaging member, and a sleeve in which a bearing is mounted. The engaging member includes a base and a plurality of resilient legs projecting from the base. Each resilient leg has a hook on a distal end thereof. The base of the engaging member is engaged with and thus seals a bottom end of an axial hole of the axial tube. The sleeve is mounted in the engaging member and has a base portion. The hook of each resilient leg is pressed outward to thereby retain the stator assembly in place when the sleeve and the engaging member are received in the axial tube, with the resilient legs of the engaging member together holding the sleeve to thereby allow tight engagement between the sleeve and the bearing.

Abstract: A heat-dissipating module including a first fan unit, a second fan unit, and a connecting arrangement for connecting the first fan unit and the second fan unit in a serial manner. The first fan unit is located on an air inlet side and includes a casing and a fan wheel received in the casing of the first fan unit. The second fan unit is located on an air outlet side and includes a casing and a fan wheel received in the casing of the second fan unit. At least one side air inlet is defined between the casing of the first fan unit and the casing of the second fan unit for increasing an air inlet amount and an air outlet amount of the second fan unit.