Abstract: A fan control system. The fan motor is operated normally at not greater than a preset maximum rotation speed. The fan control system has a programmable microcontroller to receive an input voltage and a rotation speed signal obtained by detecting the actual rotation speed of the fan motor, determining an output signal according to the input voltage and the rotation speed signal, and outputting the output signal; and a fan-driving unit to receive the output signal and adjusting the rotation speed for driving the fan motor according to the output signal.

Abstract: The centrifugal fan of the present invention comprises a frame, a rotatory means and an impeller. Among these, the frame has a first intake, a second intake, at least one air outlet and a plurality of ribs crossing the second intake. The rotatory means mounted in the frame. The impeller further includes a hub, a partition, a plurality of first blades and a plurality of second blades. The hub is coupled to the motor. The partition separates the inlet air of the first intake and that of the second intake so as to reduce the noise caused by the disturbance. A plurality of first blades and second blades are formed on the first surface and the second of the impeller, respectively. Each of the first blades and second blades selectively include a cut corner formed thereon. The second blade and said rib forms an intersection angle of about 90 degrees as the second blade crosses the rib.

Abstract: The SMIF pod includes a base having a cassette that may receive one or more wafers in preparation for transferring the wafers. The base includes a plurality of first openings formed on the side surfaces for a latch mechanism. The base includes a window formed on a surface of the base for an operator to read the state of the container. A box having second openings one to one corresponding to said first openings for the latch mechanism with latch member to penetrate through them while in the lock state. An indicator presents a first mark for indicating the locked state at the window or presents a second mark at the window for indicating the unlocked state.

Abstract: A fan assembly includes a first fan device having an engaging medium, and a second fan device having a corresponding engaging medium for engaging with the engaging medium of the first fan device, thereby allowing the second fan device to be combined with the first fan device. The fan device includes a fan frame having the engaging medium adapted to engage with the corresponding engaging medium of another fan frame of another fan device, and a fan secured in the fan frame.

Abstract: A fan guard for guiding airflow to dissipate heat generated from a heat-generating device has an airflow inlet disposed on an upper portion of the fan guard for introducing the airflow into an interior of the fan guard, an airflow outlet disposed on a lower portion of the fan guard for enabling the airflow to flow out of the fan guard and to the heat-generating device, and a plurality of ribs disposed in the airflow outlet of the fan guard for separating the airflow outlet into a plurality of isolated flow paths. In addition, the inner diameter of the airflow outlet is smaller than that of the airflow inlet, and there is a space formed between the ribs of the fan guard and the heat-generating device for enhancing the heat-dissipating efficiency.

Abstract: Disclosed is a composite heat-dissipating system and its used fan guard which can impart a supercharging function to the heat-dissipating fans of the composite heat-dissipating system for efficient heat dissipation and reduces the noise generated when the heat-dissipating fans are operated. The fan guard includes a frame and a set of guard blades arranged inside and fixed onto an inner surface of the frame. The fan guard can be arranged upstream or downstream of the rotor blades of the heat-dissipating fans and assembled with the heat-dissipating fans in series or in parallel to supercharge the airflow out of the heat-dissipating fans.

Abstract: A motor structure including a stator having a coil assembly, and a rotor having a circular magnet located above the coil. The stator includes a coil assembly having a ring-shaped slot, a plurality of first teeth, a plurality of second teeth, and a coil. The ring-shaped slot has an inner periphery on its inner side and an outer periphery on its outer side away from the inner periphery. The plurality of first teeth is mounted around the inner periphery of the ring-shaped slot. The plurality of second teeth is mounted around the outer periphery of the ring-shaped slot. The coil is wound in the ring-shaped slot.

Abstract: The present invention discloses a self-stabilizing heat exhaust system including at least several rate-variable fans. Each of the rate-variable fans further includes a power-input terminal for inputting power to the rate-variable fans; a grounded terminal for providing the rate-variable fan a lower level; a signal-output terminal coupled to an adjacent rate-variable fan for outputting a speed signal which may be a normal signal or an abnormal signal; a signal-input terminal coupled to another adjacent rate-variable fan for receiving the speed signal; and a control circuit responding to the abnormal signal to make the rate-variable fan rotate at the higher rotation rate and responding to the normal signal to make the rate-variable fan rotate at the lower rotation rate.

Abstract: A motor structure includes a stator and a rotor. The stator includes a coil assembly which includes a ring-shaped slot having an inner periphery on its inner side and an outer periphery on its outer side away from the inner periphery, a plurality of first teeth mounted around the inner periphery of the ring-shaped slot, and a plurality of second teeth mounted around the outer periphery of the ring-shaped slot; wherein each of the first teeth is arranged to partly fall behind or exceed the corresponding one of the second teeth, and a coil wound in the ring-shaped slot. The rotor includes a circular magnet located above the coil.

Abstract: A heat-dissipating assembly for being used in a system frame is provided. The heat-dissipating assembly includes a heat-dissipating device having a plurality of holes thereon, and a securing device engaged with the system frame and having a plurality of engaging elements corresponding to the plurality of holes of the heat-dissipating device for separately connecting the heat-dissipating device with the securing device, and a plurality of supporting flanges for assisting in securing the heat-dissipating device to the securing device.

Abstract: A heat-dissipating module includes a heat sink and a fan device. The fan device may be disposed on the heat sink, or inserted into the heat sink to reduce the height. The fan device includes a first rotor blade and a second rotor blade. The first rotor blade and the second rotor blade are connected in series. The rotation speed of the first rotor blade is controlled by a first control circuit, and the second rotor blade is controlled by the second circuit. Thus, the second control circuit increases the rotation speed of the second rotor blades when the first rotor blades is failed.

Abstract: A micro-motor with low cogging torque. The micro-motor includes a stator, a rotor, first and second magnetically conductive assemblies, and a bobbin. The first and second magnetically conductive assemblies are respectively comprised of a plurality of magnetically conductive sheets stacked together. The magnetically conductive sheets are each formed with a plurality of asymmetrical salient teeth. Furthermore, at least one of the magnetically conductive sheets is disposed reversely relative to the other magnetically conductive sheets. The rotor is coupled to the stator.

Abstract: An axial-flow fan device includes a fan frame having an intake opening and an outlet opening, and an impelling apparatus mounted in the fan frame and having fan blades and an air gap generation member surrounding the fan blade. The air gap generation member which is made of a plurality of rings is mounted on a blade wheel and connected to the ends of the fan blades to reinforce the fan blades, with each of the rings overlapping and separated from each other for generating a plurality of air gaps when the fan blades rotate.

Abstract: A fan with improved self-cooling capability having a frame, a stator, a magnetic ring, an iron case, and a rotor blade impeller. The frame has a base for containing the stator, and the stator is provided with at least a coil. The magnetic ring is coupled to the stator, and the iron case is coupled to the magnetic ring while being provided with at least a first heat dissipation hole adjacent to an outer edge of the iron case. The rotor blade impeller is formed on the iron case, in which at least a second heat dissipation hole aligned to the first heat dissipation hole is formed on a hub of the rotor blade impeller, and the first heat dissipation hole and the second heat dissipation hole are not formed directly above the end of the coil.

Abstract: A heat-dissipating assembly includes a plurality of heat-dissipating devices, each of which includes a frame having at least one locating window for allowing the heat-dissipating device to inhale air and discharge airflow, and a stream-guiding wall formed beside the locating window; and at least one blade structure mounted in the locating window of the frame. In addition, each heat-dissipating device further includes at least one engaging medium to be engaged with a corresponding engaging medium of another heat-dissipating device, thereby allowing the plurality of heat-dissipating devices to be combined in parallel, side by side, or in tiers.

Abstract: Disclosed is a serial fan which only occupies a small space, has a simplified assembling structure, and can effectively eliminate the interference between fans. The serial fan includes a main frame, a plurality of rotor vanes connected in series within the main frame along an axial direction of the serial fan, a first support disposed inside and connected with the main frame for supporting one of the plurality of rotor vanes, and a second support detachably connected with the first support for supporting another one of the plurality of rotor vanes.

Abstract: A miniature motor structure includes a stator, a circular magnet and a shift. The stator further includes a first coil seat, a coil and a second coil seat. The first coil seat includes a first bottom plate having a first central opening, a plurality of first outer teeth and a plurality of first inner teeth. The coil is formed in the first coil seat. The second coil seat includes a second bottom plate having a second central opening, a plurality of second outer teeth and a plurality of second inner teeth. Each of the second outer teeth is interposed between the adjacent first outer teeth and each of the second inner teeth is interposed between the adjacent first inner teeth. The circular magnet surrounds the stator.

Abstract: Disclosed is a contact device adapted to be mounted on a heat-dissipating device for hot swap in a system. The contact device includes a main body having a resilient member protruding from one side thereof, a conductive member disposed in the main body for electrically connecting the heat-dissipating device and the system, and a first engaging member disposed on the resilient member for engaging with a second engaging member of the heat-dissipating device to allow the main body to be detachably mounted on the heat-dissipating device.