Abstract: A mounting apparatus for mounting a data storage device with a sliding member attached thereon, includes a bracket and a latch member slidably mounted on the side plate. The bracket includes a side plate. The side plate defines a slideway for slidably receiving the sliding member of the data storage device. The latch member includes a resilient tab. The latch member is slidable on the side plate between a first position wherein the resilient tab is located at a halfway of the slideway so as to block the sliding member from passing therethrough, and a second position wherein the resilient tab is located outside the slideway so as to allow the sliding member to pass therethrough.

Abstract: An electric fan includes a stationary assembly and a rotor (40) being rotatable with respect to the stationary assembly. The stationary assembly includes a support member (16) located at a center portion thereof, and a stator (20) mounted around the support member. The rotor includes a blade set (41) having a rotary shaft (412) extending from the blade set toward the stationary assembly and pivotably supported by the support member. A rail assembly consisting of a lower rail (18) and an upper rail (49) is attached to the stationary assembly and the blade set to movably support the rotor on the stationary assembly.

Abstract: The invention related to an electronic device enclosure that includes a chassis and a cover. The chassis includes a bottom wall, an opening and a circuit board mounted on the bottom wall. The cover is mounted on the chassis and is adapted to cover the opening of the chassis. A shock absorber is mounted on the cover and is resiliently resisted on the circuit board.

Abstract: A mounting apparatus is used to mount a fan having a bottom panel with a mounting hole defined therein. The mounting apparatus is configured to support the bottom panel on a top side thereof. The board forms a clip on the top side of the board, and defines a through hole adjacent the clip. The clip includes a elastic shank standing on the top side of the board, a flange formed on a top end of the shank and suspended over the shank, and a driving pole extending downwards from the shank and through the through hole of the board to have a driving end of the driving pole located below the board adapted to bend the shank. The clip is inserted in the mounting hole of the bottom panel with the flange engaging on a top surface of the bottom panel. The bottom panel is sandwiched between the flange and the top side of the board. The driving end of the driving pole is manually bendable to disengage the flange of the clip from the top surface of the bottom panel.

Abstract: A mounting mechanism for mounting an electronic device to a chassis, the electronic device defining a first securing hole, and the chassis defining a second securing hole, includes a securing member having a base. A plurality of elastic hooks extends from a bottom of the base. At least one blocking portion protrudes laterally from the base. The elastic hooks extend through the first securing hole and the second securing hole and are engaged with a bottom side of one of the chassis and the electronic device. The at least one blocking portion abuts on the other one of the chassis and the electronic device, for sandwiching the electronic device and the chassis between the hooks and the at least one blocking portion.

Abstract: An electric fan includes a fan base (10), a bearing (40) and a rotor assembly (20). The fan base forms a central tube (11) receiving the bearing therein. The rotor assembly includes a fan hub (22), and a pivot axle (23) joined to the fan hub. The pivot axle pivotably extends into the bearing. A first and second locking rings (50, 70) are received in the central tube. Each of the first and second locking rings defines a central bore (52) therein. The pivot axle is engaged in the central bores of the first and second locking rings. The first locking ring is located at a top of the bearing and the second locking ring is located at a bottom of the bearing to prevent the rotor assembly from escaping from the bearing when the fan is operated.

Abstract: A vibration dampening structure (10) for absorbing vibrations generated by an electronic device includes a screw (30) and a dampening element (50) placed around the screw. The screw includes a head (31) and a shank (32) extending from the head. A retaining slot is defined in the shank. The dampening element includes a resilient shock-absorbing member (53) fittingly surrounding the shank of the screw. At least one resilient hook (515) protrudes from a first end of the resilient shock-absorbing member and engages in the retaining slot of the screw. A plurality of shock-absorbing pads (531) protrudes from a second end of the resilient shock-absorbing member opposite to the first end. The shock-absorbing pads are configured for abutting on the electronic device.

Abstract: A screw assembly includes a screw (10), a positioning member (30), a vibration-absorbing member (40), and a shielding member (20). The screw includes a head portion (12), a threaded portion (16) and a neck portion (14) connecting the head portion and the threaded portion. The positioning member is secured on the neck portion of the screw adjacent the head portion. The vibration-absorbing member surrounds the threaded portion and the neck portion of the screw. The shielding member includes a top portion (22) and a shielding portion (24) extending from the top portion. The top portion is positioned on the screw between the head portion and the positioning member. The shielding portion encloses the positioning member and the vibration-absorbing member.

Abstract: A shock absorber (20) includes a fastener (10) and a resilient gasket (30) for receiving the fastener. The fastener includes a shaft (15). The gasket includes an axial portion (31) surrounding the shaft of the fastener and a plurality of resilient tabs (35) extending from the axial portion. Each resilient tab includes an extending portion (351) extending from the axial portion, a bent portion (353) extending outward from the extending portion, and a resilient contacting portion (355) further extending backward from the bent portion and keeping a distance from the extending portion in a direction vertical to the axial direction of the fastener.

Abstract: A frame (10) for an electrical fan includes a bracket (20) and a bearing support (30) located at the center of the bracket. The bearing support includes a metal tube (50) and a plastic body (40) connecting with the metal tube. The metal tube defines at least one connecting hole (52) in a wall thereof. The plastic body includes an inner portion (42) located inside the metal tube, an outer portion (44) located outside the metal tube, and a connecting portion (46) located in the connecting hole and integrally connecting the inner and the outer portions of the plastic body. The inner portion is used for engaging with two bearings (60) for rotatably connecting with a rotor shaft of the electrical fan.

Abstract: A bearing support for use in a motor includes a tube (50) having an exterior surface and an interior surface. A plurality of first protrusions (52) on the exterior surface of the tube (50) are provided for engaging a stator (2) of the motor mounted around the tube. A plurality of second protrusions (55) on the interior surface of the tube (50) are provided for engaging a bearing (60) of the motor. The first and second protrusions are alternated along a circumferential direction of the tube.

Abstract: A heat dissipation fan includes a fan frame, a stator mounted to the frame, and a rotor rotatably disposed around the stator. The fan frame includes a bracket, a central tube for positioning the stator, and a supporting member. The supporting member is made of a material having a higher bending strength than a plastic material used to form the bracket and the central tube. The supporting member includes a main body connected to the central tube, a plurality of ribs extending radially outwardly from the main body, and a plurality of engaging units formed at free ends of the ribs, respectively. The engaging units are embedded in the bracket for integrally connecting the central tube to the bracket.

Abstract: A method of controlling a rotational speed of a fan motor for a heat generating electronic component includes the following steps: (1) obtaining an original PWM pulse in response to an internal die temperature of the electronic component, the original PWM pulse having a first duty cycle which corresponds to a first rotational speed for the fan motor; (2) obtaining an ambient temperature surrounding the electronic component; (3) generating a new PWM pulse based on the original PWM pulse and the ambient temperature, the new PWM pulse having a second duty cycle which corresponds to a second rotational speed for the fan motor; and (4) controlling the fan motor to operate at the second rotational speed. In this method, both the internal die temperature of the electronic component and the ambient temperature surrounding the electronic component are taken into consideration in determining the rotational speed of the fan motor.

Abstract: A cooling fan includes a frame (30), a stator (20) and a rotor (10). The frame includes a base (32) having a central tube (34). A bearing (22) is received in the central tube. The rotor includes a hub (11) having a shaft (15) extending from the hub into the bearing. An oil retaining ring (40) is mounted on the hub around the shaft and near a top of the central hub.

Abstract: An electric fan includes a fan base (10), a bearing (40) and a rotor assembly (20). The fan base forms a central tube (11) receiving the bearing therein. The rotor assembly includes a fan hub (22), and a pivot axle (23) joined to the fan hub. The pivot axle pivotably extends into the bearing. A sealing lid (60) is screwedly mounted on a bottom opening of the central tube to prevent lubricant oil contained in the central tube from leaking. The sealing lid abuts against a bottom of the bearing to prevent the bearing from deflection.

Abstract: An articulated joint for a foldable ladder includes an outer casing pair, an inner casing pair pivotally moving with respect to the outer casing pair, a lock device composed of a lock block and a locating pin. The locating pin has a ball end to be slightly squeezed in the locating hole such that the ball end is capable of retained in the locating hole and pivotally joined to the locating hole. The lock block provides triangular prism shaped projections at two opposite long edges of the bottom side of the lock block. Hence, the lock block can move along the guide slot of the outer casing shells steadily and be pivotally joined to fixing pin without loosening apart from each other.

Abstract: A fan motor includes a printed circuit board (200), an IC (100) and an insulating frame (50) mounted on the printed circuit board. The insulating frame includes an annular main body (44) with a number of arms (11) extending radially from an outer-periphery thereof, and a retaining member (14) formed thereon corresponding to the IC. The retaining member includes a pressing portion (12) pressing the IC to prevent slant thereof.

Abstract: An electric fan includes a fan base (10), a bearing (40) and a rotor assembly (20). The fan base forms a central tube (11) receiving the bearing therein. The rotor assembly includes a fan hub (22), and a pivot axle (23) joined to the fan hub. The pivot axle pivotably extends into the bearing. The bearing has an outer wall (41) with a plurality of bulwarks (45) circumferentially formed thereon. At least one partition hole (424, 43a) corresponding to the bulwarks is defined in the bearing. The at least one partition hole effectively prevents a radially inward pressure exerted by the central tube on the bearing from being exerted to the pivot axle via the bearing. Therefore, a friction between the bearing and the pivot axle is reduced.

Abstract: An electric fan includes a fan base (10) having a center tube (11), a bearing assembly received in the center tube and a rotor assembly (20). The bearing assembly includes a plain bearing (40) and a rolling bearing (50). The rotor assembly includes a fan hub (22) and a pivot axle (23) jointed to the fan hub and pivotably extending into the bearing assembly. Lubricant oil is filled between an inner surface of the plain bearing and an outer surface of the pivot axle. A partition element (60) is fixed to the center tube for separating the rolling bearing from the plain bearing, thereby preventing impurities in the lubricant oil from being thrown into the rolling bearing with the lubricant oil.

Abstract: A heat dissipation fan includes a rotor (1) having a hub (10) with a permanent magnet (104) attached to an inner surface thereof, a stator (2) and a fan frame (3) having a bearing seat (36). The bearing seat (36) includes a base (361) and a central tube (362) around which the stator is mounted. Slots (102) are defined through the top wall of the hub facing to the magnet ring. The base defines slots (360), corresponding to the slots of the hub.